Updated to the most recent version, which uses go 1.22

2024-06-05 20:36:34 +03:00 · 2024-06-05 20:36:34 +03:00 · b867c16328
commit b867c16328
parent d543ebc174
256 changed files with 4635 additions and 1622 deletions
--- a/.deadlines.yml
+++ b/.deadlines.yml
@ -1,190 +0,0 @@
- group: Bonus
-  start: 30-09-2023 14:00
-  deadline: 18-02-2024 23:59
-  tasks:
-    - task: consistenthash
-      score: 200
-    - task: gossip
-      score: 300
-    - task: smartsched
-      score: 200
-      watch:
-        - distbuild/pkg/scheduler
-    - task: wasm
-      score: 300
-
- group: Analysis
-  start: 30-09-2023 14:00
-  deadline: 11-02-2023 23:59
-  tasks:
-    - task: testifycheck
-      score: 200
-    - task: gzep
-      score: 100
-
- group: "[HW] Dist Build"
-  start: 30-09-2023 14:00
-  deadline: 04-02-2024 23:59
-  tasks:
-    - task: distbuild
-      score: 0
-
- group: Low level
-  start: 30-09-2023 14:00
-  deadline: 28-01-2024 23:59
-  tasks:
-    - task: illegal
-      score: 100
-    - task: blowfish
-      score: 100
-
- group: Reflect
-  start: 30-09-2023 14:00
-  deadline: 21-01-2024 23:59
-  tasks:
-    - task: reversemap
-      score: 100
-    - task: jsonlist
-      score: 100
-    - task: jsonrpc
-      score: 100
-    - task: structtags
-      score: 100
-
- group: SQL
-  start: 30-09-2023 14:00
-  deadline: 31-12-2023 23:59
-  tasks:
-    - task: dao
-      score: 100
-    - task: ledger
-      score: 200
-    - task: shopfront
-      score: 100
-    - task: wscat
-      score: 200
-
- group: Generics
-  start: 30-09-2023 14:00
-  deadline: 24-12-2023 23:59
-  tasks:
-    - task: genericsum
-      score: 100
-    - task: treeiter
-      score: 100
-    - task: coverme
-      score: 300
-
- group: HTTP
-  start: 30-09-2023 14:00
-  deadline: 17-12-2023 23:59
-  tasks:
-    - task: urlshortener
-      score: 100
-    - task: digitalclock
-      score: 100
-    - task: middleware
-      score: 200
-    - task: olympics
-      score: 200
-    - task: firewall
-      score: 200
-
- group: Concurrency with shared memory
-  start: 30-09-2023 14:00
-  deadline: 03-12-2023 23:59
-  tasks:
-    - task: dupcall
-      score: 200
-    - task: keylock
-      score: 200
-    - task: batcher
-      score: 200
-    - task: pubsub
-      score: 300
-
- group: Testing
-  start: 30-09-2023 14:00
-  deadline: 26-11-2023 23:59
-  tasks:
-    - task: testequal
-      score: 100
-    - task: fileleak
-      score: 100
-    - task: tabletest
-      score: 100
-    - task: tparallel
-      score: 200
-    - task: iprange
-      score: 100
-
- group: "[HW] Gitfame"
-  start: 30-09-2023 14:00
-  deadline: 19-11-2023 23:59
-  tasks:
-    - task: gitfame
-      score: 0
-
- group: Goroutines
-  start: 30-09-2023 14:00
-  deadline: 05-11-2023 23:59
-  tasks:
-    - task: tour1
-      score: 100
-    - task: once
-      score: 100
-    - task: rwmutex
-      score: 100
-    - task: waitgroup
-      score: 100
-    - task: cond
-      score: 100
-    - task: ratelimit
-      score: 100
-
- group: Interfaces
-  start: 30-09-2023 14:00
-  deadline: 29-10-2023 23:59
-  tasks:
-    - task: otp
-      score: 100
-    - task: lrucache
-      score: 100
-    - task: externalsort
-      score: 100
-    - task: retryupdate
-      score: 100
-    - task: ciletters
-      score: 100
-
- group: Basics
-  start: 30-09-2023 14:00
-  deadline: 22-10-2023 23:59
-  tasks:
-    - task: hotelbusiness
-      score: 100
-    - task: hogwarts
-      score: 100
-    - task: utf8
-      score: 100
-    - task: varfmt
-      score: 100
-    - task: speller
-      score: 100
-    - task: forth
-      score: 100
-
- group: Hello World
-  start: 30-09-2023 14:00
-  deadline: 15-10-2023 23:59
-  tasks:
-    - task: sum
-      score: 100
-    - task: tour0
-      score: 100
-    - task: wordcount
-      score: 100
-    - task: urlfetch
-      score: 100
-    - task: fetchall
-      score: 100
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@ -1,11 +1,7 @@
 grade:
-  image: cr.yandex/crp9onavos88ug32d5r2/grader/go
-  variables:
-    DOCKER_HOST: tcp://docker:2375/
-    DOCKER_TLS_CERTDIR: ""
-    APP_HOST: docker
-    #  services:
-    #- docker:dind
+  tags:
+    - experimental
+  image: gitlab.manytask.org:5050/go/public-2024-spring
  script:
    - testtool grade
  timeout: 10 minutes
--- a/.manytask.yml
+++ b/.manytask.yml
@ -0,0 +1,263 @@
+version: 1
+
+
+settings:  # required
+  course_name: go
+
+  gitlab_base_url: https://gitlab.manytask.org
+  public_repo: go/public-2024-spring
+  students_group: go/students-2024-spring
+
+
+ui:
+  task_url_template: https://github.com/slon/shad-go/tree/main/$TASK_NAME
+
+  # optional, any number of links
+  links:
+    "TG Channel": https://t.me/+eb5z6ZS-sI8xZDNi
+    "TG Chat": https://t.me/+Tk8VTMAk5Tlp7Txm
+    "LMS": https://lk.yandexdataschool.ru/
+    "Contribute Manytask": https://github.com/manytask
+
+
+deadlines:
+  timezone: Europe/Moscow
+
+  deadlines: hard # hard/interpolate
+  # max_submissions: 10  # optional
+  # submission_penalty: 0.1  # optional
+
+  schedule:
+    - group: Hello World
+      start: 2024-01-01 18:00
+      steps:
+        0.3: 2024-02-27 23:59
+      end: 2024-07-10 23:59
+      tasks:
+      - task: sum
+        score: 100
+      - task: tour0
+        score: 100
+      - task: wordcount
+        score: 100
+      - task: urlfetch
+        score: 100
+      - task: fetchall
+        score: 100
+
+    - group: Basics
+      start: 2024-02-24 13:00
+      steps:
+        0.3: 2024-03-06 06:00
+      end: 2024-07-10 23:59
+      tasks:
+        - task: hotelbusiness
+          score: 100
+        - task: hogwarts
+          score: 100
+        - task: utf8
+          score: 100
+        - task: varfmt
+          score: 100
+        - task: speller
+          score: 100
+        - task: forth
+          score: 100
+
+    - group: Interfaces
+      start: 2024-03-02 13:00
+      steps:
+        0.3: 2024-03-12 23:59
+      end: 2024-07-10 23:59
+      tasks:
+        - task: otp
+          score: 100
+        - task: retryupdate
+          score: 100
+        - task: lrucache
+          score: 100
+        - task: externalsort
+          score: 100
+        - task: ciletters
+          score: 100
+
+    - group: Goroutines
+      start: 2024-03-03 13:00
+      steps:
+        0.3: 2024-03-19 23:59
+      end: 2024-07-10 23:59
+      tasks:
+        - task: tour1
+          score: 100
+        - task: once
+          score: 100
+        - task: rwmutex
+          score: 100
+        - task: waitgroup
+          score: 100
+        - task: cond
+          score: 100
+        - task: ratelimit
+          score: 100
+
+    - group: "[HW] Gitfame"
+      start: 2024-03-09 13:00
+      end: 2024-03-24 23:59
+      tasks:
+      - task: gitfame
+        score: 0
+
+    - group: Testing
+      start: 2024-03-16 13:00
+      steps:
+        0.3: 2024-03-27 23:59
+      end: 2024-07-10 23:59
+      tasks:
+        - task: testequal
+          score: 100
+        - task: fileleak
+          score: 100
+        - task: tabletest
+          score: 100
+        - task: tparallel
+          score: 200
+        - task: iprange
+          score: 100
+
+    - group: Concurrency with shared memory
+      start: 2024-03-30 13:00
+      steps:
+        0.3: 2024-04-10 23:59
+      end: 2024-07-10 23:59
+      tasks:
+        - task: dupcall
+          score: 200
+        - task: keylock
+          score: 200
+        - task: batcher
+          score: 200
+        - task: pubsub
+          score: 300
+
+    - group: HTTP
+      start: 2024-04-06 13:00
+      steps:
+        0.3: 2024-04-16 23:59
+      end: 2024-07-10 23:59
+      tasks:
+        - task: urlshortener
+          score: 100
+        - task: digitalclock
+          score: 100
+        - task: middleware
+          score: 200
+        - task: firewall
+          score: 200
+        - task: olympics
+          score: 200
+
+    - group: SQL
+      start: 2024-04-13 13:00
+      steps:
+        0.3: 2024-04-23 23:59
+      end: 2024-07-10 23:59
+      tasks:
+        - task: dao
+          score: 100
+        - task: ledger
+          score: 200
+        - task: shopfront
+          score: 100
+        - task: wscat
+          score: 200
+
+    - group: "[HW] Dist Build"
+      start: 2024-04-13 13:00
+      end:   2024-05-13 23:59
+      tasks:
+        - task: distbuild
+          score: 1
+
+    - group: Generics
+      start: 2024-04-20 13:00
+      steps:
+        0.3: 2024-05-02 23:59
+      end: 2024-07-10 23:59
+      tasks:
+        - task: genericsum
+          score: 100
+        - task: treeiter
+          score: 100
+        - task: coverme
+          score: 300
+
+    - group: Reflect
+      start: 2024-04-27 13:00
+      steps:
+        0.3: 2024-05-07 23:59
+      end: 2024-07-10 23:59
+      tasks:
+        - task: reversemap
+          score: 100
+        - task: jsonlist
+          score: 100
+        - task: jsonrpc
+          score: 100
+        - task: structtags
+          score: 100
+
+    - group: Low level
+      start: 2024-05-04 13:00
+      steps:
+        0.3: 2024-05-14 23:59
+      end: 2024-07-10 23:59
+      tasks:
+        - task: illegal
+          score: 100
+        - task: blowfish
+          score: 100
+        - task: gzep
+          score: 100
+
+    - group: Analysis
+      start: 2024-05-11 13:00
+      steps:
+        0.3: 2024-05-21 23:59
+      end: 2024-07-10 23:59
+      tasks:
+        - task: testifycheck
+          score: 200
+
+    - group: Bonus
+      start: 2024-03-03 13:00
+      end: 2024-07-10 23:59
+      tasks:
+        - task: yamlembed
+          is_bonus: true
+          score: 100
+        - task: consistenthash
+          is_bonus: true
+          score: 200
+        - task: gossip
+          is_bonus: true
+          score: 300
+        - task: smartsched
+          is_bonus: true
+          score: 200
+          watch:
+            - distbuild/pkg/scheduler
+        - task: wasm
+          is_bonus: true
+          score: 300
+        - task: firegod
+          is_bonus: true
+          score: 200
+        - task: excelwriter
+          is_bonus: true
+          score: 200
+        - task: rsem
+          is_bonus: true
+          score: 200
+        - task: psycher
+          is_bonus: true
+          score: 200
--- a/.private
+++ b/.private
@ -1 +1,2 @@
 wasm/flappygopher/main_solution.go
+rsem/try_lock.lua
--- a/.releaser-ci.yml
+++ b/.releaser-ci.yml
@ -1,11 +1,5 @@
 check:
-  image: cr.yandex/crp9onavos88ug32d5r2/grader/go-build
-  variables:
-    DOCKER_HOST: tcp://docker:2375/
-    DOCKER_TLS_CERTDIR: ""
-    APP_HOST: docker
-    #  services:
-    #- docker:dind
+  image: gitlab.manytask.org:5050/go/public-2024-spring/build
  script:
    - golangci-lint run --build-tags private,solution ./...
      #- go test -v -tags private,solution ./...
@ -19,8 +13,8 @@ rebuild-base-image:
    - docker
  when: manual
  script:
-    - docker build -f build.docker -t cr.yandex/crp9onavos88ug32d5r2/grader/go-build .
-    - docker push cr.yandex/crp9onavos88ug32d5r2/grader/go-build:latest
+    - docker build -f build.docker -t gitlab.manytask.org:5050/go/public-2024-spring/build .
+    - docker push gitlab.manytask.org:5050/go/public-2024-spring/build:latest

 deploy:
  only:
@ -28,9 +22,9 @@ deploy:
  tags:
    - docker
  script:
-    - docker pull cr.yandex/crp9onavos88ug32d5r2/grader/go-build:latest
-    - docker build -f testenv.docker -t cr.yandex/crp9onavos88ug32d5r2/grader/go .
-    - docker push cr.yandex/crp9onavos88ug32d5r2/grader/go:latest
+    - docker pull gitlab.manytask.org:5050/go/public-2024-spring/build:latest
+    - docker build -f testenv.docker -t gitlab.manytask.org:5050/go/public-2024-spring .
+    - docker push gitlab.manytask.org:5050/go/public-2024-spring:latest

 build-slides:
  only:
@ -38,28 +32,32 @@ build-slides:
  tags:
    - docker
  script:
-    - docker build lectures -t cr.yandex/crp9onavos88ug32d5r2/go-lectures
-    - docker push cr.yandex/crp9onavos88ug32d5r2/go-lectures
+    - docker build lectures -t gitlab.manytask.org:5050/go/public-2024-spring/lectures
+    - docker push gitlab.manytask.org:5050/go/public-2024-spring/lectures

-push-to-public:
-  stage: .post
-  image: cr.yandex/crp9onavos88ug32d5r2/grader/go
+update-config:
  only:
    - master
  script:
-    - git remote rm public || true
-    - git remote add -f public https://svparamoshkin:${CI_PUSH_TOKEN}@gitlab.manytask.org/go/public-itmo-2023-fall
-    - git config --global user.email 'svparamoshkin@yandex-team.ru'
-    - git config --global user.name 'svparamoshkin'
-    - git fetch public
-    - git branch -D public || true
-    - git branch public public/master
-    - testtool export --push --move-to-master=false
-    - curl -F token=$TESTER_TOKEN http://itmo-go.manytask.org/api/sync_task_columns
+    - >
+      curl -v --fail --silent -X POST \
+        -H "Authorization: Bearer $TESTER_TOKEN" \
+        -H "Content-type: application/x-yaml" \
+        --data-binary "@.manytask.yml" \
+        https://go.manytask.org/api/update_config
+    - >
+      curl -v --fail --silent -X POST \
+        -H "Authorization: Bearer $TESTER_TOKEN" \
+        https://go.manytask.org/api/update_cache

-push-to-github:
+push-to-public:
  stage: .post
-  image: cr.yandex/crp9onavos88ug32d5r2/grader/go
+  image: gitlab.manytask.org:5050/go/public-2024-spring
+  parallel:
+    matrix:
+      - REMOTE:
+        - git@github.com:slon/shad-go.git
+        - git@gitlab.manytask.org:go/public-2024-spring.git
  only:
    - master
  script:
@ -69,7 +67,7 @@ push-to-github:
    - git branch -D main || true
    - git checkout -b main
    - git remote rm github || true
-    - env GIT_SSH_COMMAND="ssh -i ${PWD}/private.key -o StrictHostKeyChecking=no" git remote add -f github git@github.com:slon/shad-go.git
+    - env GIT_SSH_COMMAND="ssh -i ${PWD}/private.key -o StrictHostKeyChecking=no" git remote add -f github $REMOTE
    - env GIT_SSH_COMMAND="ssh -i ${PWD}/private.key -o StrictHostKeyChecking=no" git push github main

 deploy-slides:
@ -79,5 +77,5 @@ deploy-slides:
  tags:
    - web
  script:
-    - docker pull cr.yandex/crp9onavos88ug32d5r2/go-lectures
+    - docker pull gitlab.manytask.org:5050/go/public-2024-spring/lectures
    - cd /srv/manytask/go && docker compose up -d
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@ -1,26 +1,28 @@
 # Как послать патч

-Если вы нашли недоработку в тестах или неточность/опечатку в условии, то вы можете послать MR
+Если вы нашли недоработку в тестах или неточность/опечатку в условии, то вы можете послать PR
 с исправлением в репозиторий курса.

-За все исправления начисляются дополнительные баллы в колонке bugs в таблице.
+За все исправления начисляются дополнительные баллы в колонке bonus в таблице.
 Размер дополнительных баллов зависит от серьёзности исправления и определяется преподавателями.

 ## Небольшие исправления

-Небольшие исправления на <10 строк проще всего послать через веб интерфейс гитлаба.
+Небольшие исправления на <10 строк проще всего послать через веб интерфейс гитхаба.

-1. Откройте нужный файл в веб интерфейсе репозитория https://gitlab.com/manytask/itmo-go/public
-2. Нажмите на кнопку "Edit". Во всплывающей подсказке нажмите кнопку "Fork".
-   ![](docs/edit-and-fork.png)
-3. Внесите изменения в файл. Нажмите "Commit Changes" внизу страницы.
-4. Добавьте описание вашего изменения. Нажмите "Submit Merge Request".
+1. Откройте нужный файл в веб интерфейсе репозитория https://github.com/slon/shad-go
+2. Нажмите на кнопку "Edit in place".
+   ![](docs/edit-in-place.png)
+3. На следующем экране нажмите "Fork this repository".
+3. Внесите изменения в файл. Нажмите "Commit Changes" сверху страницы.
+4. Добавьте описание вашего изменения. Нажмите "Propose changed".
+5. Нажмите "Create pull request".

 ## Продвинутые исправления

 Для многофайловых исправлений можно сначала сделать исправление локально:

-1. Создайте форк https://gitlab.com/manytask/itmo-go/public аналогично тому, что выше.
+1. Создайте форк https://github.com/slon/shad-go аналогично тому, что выше.

 2. Закоммитьте все локальные изменения, которые вы не хотите добавлять в репозиторий курса.

@ -30,16 +32,13 @@
   git checkout origin/master -b newbranchforupdate
   ```

-4. Внесите локальные изменения и запушьте их в свой форк на [gitlab.com](https://gitlab.com/) (не в `student`), например
+4. Внесите локальные изменения и запушьте их в свой форк на [github.com](https://github.com/) (не в `student`), например
   ```
   git add .
   git commit -m "Update tests"
-   git push https://gitlab.com/%USERNAME%/shad-go/
+   git push https://github.com/%USERNAME%/shad-go/
   ```

-5. В своём форке выберите созданную ветку и создайте Merge Request в репозиторий курса. Обычно GitLab подсказывает недавно запушенную ветку и предлагает создать для неё MR.
+5. В своём форке выберите созданную ветку и создайте Pull Request в репозиторий курса. Обычно Github подсказывает недавно запушенную ветку и предлагает создать для неё PR.

-![](docs/create-mr.png)
-
-   На странице c формой нового Merge Request убедитесь, что ветвь назначения — `slon/shad-go:master`. Нажмите кнопку "Create Merge Request".
-![](docs/create-mr-form.png)
+   На странице c формой нового Pull Request убедитесь, что ветвь назначения — `slon/shad-go:master`. Нажмите кнопку "Create Pull Request".
--- a/README.md
+++ b/README.md
@ -1,13 +1,5 @@
 # Курс по Го в ШАД

-Для работы с кодом нужен go 1.18 или выше.
-
-```sh
-git clone https://gitlab.com/manytask/itmo-go/public.git
-cd shad-go
-go test ./sum/...
-```
-
 Проект можно открыть в любой go IDE с поддержкой модулей.

 ## Информация
--- a/allocs/README.md
+++ b/allocs/README.md
@ -15,7 +15,7 @@
 ```
 goos: linux
 goarch: amd64
-pkg: gitlab.com/manytask/itmo-go/public/allocs
+pkg: gitlab.com/slon/shad-go/allocs
 Benchmark/count-4                  73200             16294 ns/op             880 B/op          5 allocs/op
 Benchmark/main-4                   40485             30113 ns/op            1034 B/op          9 allocs/op
 ```
@ -23,7 +23,7 @@ Benchmark/main-4                   40485             30113 ns/op            1034
 Значения бенчмарков для авторского решения:
 ```goos: linux
   goarch: amd64
-   pkg: gitlab.com/manytask/itmo-go/public/allocs
+   pkg: gitlab.com/slon/shad-go/allocs
   Benchmark/count-4                 212850              5471 ns/op            4144 B/op          2 allocs/op
   Benchmark/main-4                  143937              8247 ns/op            4176 B/op          3 allocs/op
 ```
--- a/allocs/baseline.go
+++ b/allocs/baseline.go
@ -5,7 +5,6 @@ package allocs
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"sort"
 	"strings"
 )
@ -24,7 +23,7 @@ func NewBaselineCounter() Counter {
 }

 func (c BaselineCounter) Count(r io.Reader) error {
-	data, err := ioutil.ReadAll(r)
+	data, err := io.ReadAll(r)
 	if err != nil {
 		return err
 	}
--- a/batcher/batcher.go
+++ b/batcher/batcher.go
@ -2,9 +2,10 @@

 package batcher

-import "gitlab.com/manytask/itmo-go/public/batcher/slow"
+import "gitlab.com/slon/shad-go/batcher/slow"

-type Batcher struct{}
+type Batcher struct {
+}

 func NewBatcher(v *slow.Value) *Batcher {
 	return nil
--- a/batcher/batcher_test.go
+++ b/batcher/batcher_test.go
@ -9,7 +9,7 @@ import (
 	"github.com/stretchr/testify/require"
 	"go.uber.org/goleak"

-	"gitlab.com/manytask/itmo-go/public/batcher/slow"
+	"gitlab.com/slon/shad-go/batcher/slow"
 )

 func TestSimple(t *testing.T) {
--- a/blowfish/blowfish_test.go
+++ b/blowfish/blowfish_test.go
@ -8,7 +8,7 @@ import (

 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/blowfish"
+	"gitlab.com/slon/shad-go/blowfish"
 )

 var _ cipher.Block = (*blowfish.Blowfish)(nil)
--- a/build.docker
+++ b/build.docker
@ -1,4 +1,4 @@
-FROM golang:1.20
+FROM golang:1.22

 # enable backports for git-filter-repo
 RUN echo "deb http://deb.debian.org/debian bullseye-backports main" >> /etc/apt/sources.list.d/backports.list
@ -7,4 +7,4 @@ RUN apt-get update && apt-get install -y \
    rsync libssl-dev postgresql sudo redis-server git-filter-repo/bullseye-backports \
 && rm -rf /var/lib/apt/lists/*

-RUN curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.51.1
+RUN curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.56.2
--- a/ciletters/README.md
+++ b/ciletters/README.md
@ -35,7 +35,7 @@ Your pipeline #194613 has failed! // 194613 -- это ID pipeline'а
            // Далее идут последние 10 строк лога gitlab runner'а
            testtool: copying go.mod, go.sum and .golangci.yml
            testtool: running tests
-            testtool: > go test -mod readonly -tags private -c -o /tmp/bincache730817117/5d83984f885e61c1 gitlab.com/manytask/itmo-go/public/sum
+            testtool: > go test -mod readonly -tags private -c -o /tmp/bincache730817117/5d83984f885e61c1 gitlab.com/slon/shad-go/sum
            --- FAIL: TestSum (0.00s)
                sum_test.go:19: 2 + 2 == 0 != 4
                sum_test.go:19: 9223372036854775807 + 1 == 0 != -9223372036854775808
--- a/ciletters/letter_test.go
+++ b/ciletters/letter_test.go
@ -8,7 +8,7 @@ import (

 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/tools/testtool"
+	"gitlab.com/slon/shad-go/tools/testtool"
 )

 type testCase struct {
@ -93,7 +93,7 @@ testtool: copying !change files
 testtool: copying testdata directory
 testtool: copying go.mod, go.sum and .golangci.yml
 testtool: running tests
-testtool: > go test -mod readonly -tags private -c -o /tmp/bincache730817117/5d83984f885e61c1 gitlab.com/manytask/itmo-go/public/sum
+testtool: > go test -mod readonly -tags private -c -o /tmp/bincache730817117/5d83984f885e61c1 gitlab.com/slon/shad-go/sum
 --- FAIL: TestSum (0.00s)
    sum_test.go:19: 2 + 2 == 0 != 4
    sum_test.go:19: 9223372036854775807 + 1 == 0 != -9223372036854775808
@ -113,7 +113,7 @@ ERROR: Job failed: exit code 1`,
        Stage: test, Job grade
            testtool: copying go.mod, go.sum and .golangci.yml
            testtool: running tests
-            testtool: > go test -mod readonly -tags private -c -o /tmp/bincache730817117/5d83984f885e61c1 gitlab.com/manytask/itmo-go/public/sum
+            testtool: > go test -mod readonly -tags private -c -o /tmp/bincache730817117/5d83984f885e61c1 gitlab.com/slon/shad-go/sum
            --- FAIL: TestSum (0.00s)
                sum_test.go:19: 2 + 2 == 0 != 4
                sum_test.go:19: 9223372036854775807 + 1 == 0 != -9223372036854775808
@ -156,7 +156,7 @@ testtool: copying !change files
 testtool: copying testdata directory
 testtool: copying go.mod, go.sum and .golangci.yml
 testtool: running tests
-testtool: > go test -mod readonly -tags private -c -o /tmp/bincache730817117/5d83984f885e61c1 gitlab.com/manytask/itmo-go/public/sum
+testtool: > go test -mod readonly -tags private -c -o /tmp/bincache730817117/5d83984f885e61c1 gitlab.com/slon/shad-go/sum
 --- FAIL: TestSum (0.00s)
    sum_test.go:19: 2 + 2 == 0 != 4
    sum_test.go:19: 9223372036854775807 + 1 == 0 != -9223372036854775808
@ -188,7 +188,7 @@ ERROR: Job failed: exit code 1`,
        Stage: %v, Job %v
            testtool: copying go.mod, go.sum and .golangci.yml
            testtool: running tests
-            testtool: > go test -mod readonly -tags private -c -o /tmp/bincache730817117/5d83984f885e61c1 gitlab.com/manytask/itmo-go/public/sum
+            testtool: > go test -mod readonly -tags private -c -o /tmp/bincache730817117/5d83984f885e61c1 gitlab.com/slon/shad-go/sum
            --- FAIL: TestSum (0.00s)
                sum_test.go:19: 2 + 2 == 0 != 4
                sum_test.go:19: 9223372036854775807 + 1 == 0 != -9223372036854775808
--- a/cond/cond_test.go
+++ b/cond/cond_test.go
@ -1,6 +1,7 @@
 package cond

 import (
+	"gitlab.com/slon/shad-go/tools/testtool"
 	"sync"
 	"testing"
 	"time"
@ -44,6 +45,38 @@ func TestCondSignal(t *testing.T) {
 	c.Signal()
 }

+func TestCondSignalOveruse(t *testing.T) {
+	var m sync.Mutex
+	c := New(&m)
+	running := make(chan bool, 1)
+	awake := make(chan bool, 1)
+
+	for i := 0; i < 5; i++ {
+		c.Signal() // Checks if empty signals are not deadlocking
+	}
+
+	go func() {
+		m.Lock()
+		running <- true
+		c.Wait() // Checks if it will wait after empty signals
+		awake <- true
+		m.Unlock()
+
+	}()
+
+	<-running
+
+	select {
+	case <-awake:
+		t.Fatal("goroutine not asleep")
+	default:
+	}
+	m.Lock()
+	c.Signal()
+	m.Unlock()
+	<-awake // Will deadlock if no goroutine wakes up
+}
+
 func TestCondSignalGenerations(t *testing.T) {
 	var m sync.Mutex
 	c := New(&m)
@ -182,3 +215,7 @@ func TestCondSignalStealing(t *testing.T) {
 		cond.Broadcast()
 	}
 }
+
+func TestNoSyncPackageImported(t *testing.T) {
+	testtool.CheckForbiddenImport(t, "sync")
+}
--- a/consistenthash/hash_test.go
+++ b/consistenthash/hash_test.go
@ -57,7 +57,7 @@ func TestHash_EvenDistribution(t *testing.T) {
 		h.AddNode(&n)
 	}

-	counts := map[*node]int{}
+	counts := map[*node]float64{}
 	const N = 1 << 16
 	for i := 0; i < N; i++ {
 		counts[h.GetNode(fmt.Sprintf("key%d", i))] += 1
@ -65,14 +65,23 @@ func TestHash_EvenDistribution(t *testing.T) {

 	const P = 1 / float64(K)
 	const variance = N * (P) * (1 - P)
-	stddev := math.Sqrt(variance)
-	t.Logf("P = %v, var = %v, stddev = %v", P, variance, stddev)
+	idealStddev := math.Sqrt(variance)
+
+	t.Logf("P = %v, var = %v, stddev = %v", P, variance, idealStddev)
 	t.Logf("counts = %v", maps.Values(counts))

+	total := float64(N)
+	mean := total / K
+
+	var dispersion float64
 	for _, count := range counts {
-		require.Greater(t, count, int(N/K-stddev*10))
-		require.Less(t, count, int(N/K+stddev*10))
+		dispersion += (count - mean) * (count - mean)
 	}
+
+	realStddev := math.Sqrt(dispersion / K)
+	t.Logf("read stddev = %v", realStddev)
+
+	require.Less(t, math.Abs(realStddev-idealStddev)/idealStddev, float64(4))
 }

 func TestHash_ConsistentDistribution(t *testing.T) {
--- a/coverme/app/app.go
+++ b/coverme/app/app.go
@ -12,8 +12,8 @@ import (
 	"github.com/gorilla/handlers"
 	"github.com/gorilla/mux"

-	"gitlab.com/manytask/itmo-go/public/coverme/models"
-	"gitlab.com/manytask/itmo-go/public/coverme/utils"
+	"gitlab.com/slon/shad-go/coverme/models"
+	"gitlab.com/slon/shad-go/coverme/utils"
 )

 type App struct {
--- a/coverme/client/client.go
+++ b/coverme/client/client.go
@ -8,7 +8,7 @@ import (
 	"fmt"
 	"net/http"

-	"gitlab.com/manytask/itmo-go/public/coverme/models"
+	"gitlab.com/slon/shad-go/coverme/models"
 )

 type Client struct {
--- a/coverme/main.go
+++ b/coverme/main.go
@ -5,8 +5,8 @@ package main
 import (
 	"flag"

-	"gitlab.com/manytask/itmo-go/public/coverme/app"
-	"gitlab.com/manytask/itmo-go/public/coverme/models"
+	"gitlab.com/slon/shad-go/coverme/app"
+	"gitlab.com/slon/shad-go/coverme/models"
 )

 func main() {
--- a/dao/README.md
+++ b/dao/README.md
@ -31,18 +31,14 @@ sudo apt install postgresql
 Альтернативный способ — запустить бд в докере.

 Для этого нужно установить docker и docker-compose по инструкции из [dockertest](../dockertest/README.md).
-Добиться успешного запуска
-```
-go test -v ./dockertest/...
-```

 Запускать тесты можно будет так:
 ```
-(cd dao && docker-compose up -d && sleep 1 && env PGCONN="host=127.0.0.1 port=5432 database=shad-go user=gopher password=pass" go test -v ./... -count=1 || true && docker-compose down)
+(cd dao && docker compose up -d --wait && env PGCONN="host=127.0.0.1 port=5432 database=shad-go user=gopher password=pass" go test -v ./... -count=1 || true && docker compose down)
 ```
 Эта команда стартует docker с postgresql, запускает тесты, передав им DSN через переменную окружения, удаляет контейнеры в конце.

 Как подчистить контейнеры, если что-то пошло не так:
 ```
-(cd dao && docker-compose down)
+(cd dao && docker compose down)
 ```
--- a/dao/dao_test.go
+++ b/dao/dao_test.go
@ -9,7 +9,7 @@ import (
 	"github.com/stretchr/testify/require"
 	"go.uber.org/goleak"

-	"gitlab.com/manytask/itmo-go/public/pgfixture"
+	"gitlab.com/slon/shad-go/pgfixture"
 )

 func TestDao(t *testing.T) {
@ -36,7 +36,7 @@ func TestDao(t *testing.T) {

 	alice, err := dao.Lookup(ctx, aliceID)
 	require.NoError(t, err)
-	require.Equal(t, alice, User{ID: aliceID, Name: "Alice"})
+	require.Equal(t, User{ID: aliceID, Name: "Alice"}, alice)

 	require.NoError(t, dao.Delete(ctx, bobID))

@ -44,6 +44,7 @@ func TestDao(t *testing.T) {
 	require.ErrorIs(t, err, sql.ErrNoRows)

 	require.NoError(t, dao.Update(ctx, &User{ID: charlieID, Name: "Chaplin"}))
+	require.Error(t, dao.Update(ctx, &User{ID: 999, Name: "FooBar"}))

 	users, err := dao.List(ctx)
 	require.NoError(t, err)
--- a/dao/docker-compose.yaml
+++ b/dao/docker-compose.yaml
@ -8,3 +8,8 @@ services:
      POSTGRES_PASSWORD: pass
    ports:
      - 5432:5432
+    healthcheck:
+      test: [ "CMD-SHELL", "pg_isready -U $${POSTGRES_USER}" ]
+      interval: 1s
+      timeout: 3s
+      retries: 5
--- a/digitalclock/main_test.go
+++ b/digitalclock/main_test.go
@ -5,7 +5,6 @@ import (
 	"fmt"
 	"image"
 	"image/png"
-	"io/ioutil"
 	"net/http"
 	"net/url"
 	"os"
@ -18,10 +17,10 @@ import (

 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/tools/testtool"
+	"gitlab.com/slon/shad-go/tools/testtool"
 )

-const importPath = "gitlab.com/manytask/itmo-go/public/digitalclock"
+const importPath = "gitlab.com/slon/shad-go/digitalclock"

 var binCache testtool.BinCache

@ -125,7 +124,7 @@ func TestDigitalClock_valid(t *testing.T) {
 	port, stop := startServer(t)
 	defer stop()

-	files, err := ioutil.ReadDir("./testdata")
+	files, err := os.ReadDir("./testdata")
 	require.NoError(t, err)

 	c := &http.Client{Timeout: time.Second * 10}
--- a/distbuild/disttest/fixture.go
+++ b/distbuild/disttest/fixture.go
@ -4,7 +4,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"net"
 	"net/http"
 	"net/url"
@ -17,13 +16,13 @@ import (
 	"github.com/stretchr/testify/require"
 	"go.uber.org/goleak"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/api"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/artifact"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/client"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/dist"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/filecache"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/worker"
-	"gitlab.com/manytask/itmo-go/public/tools/testtool"
+	"gitlab.com/slon/shad-go/distbuild/pkg/api"
+	"gitlab.com/slon/shad-go/distbuild/pkg/artifact"
+	"gitlab.com/slon/shad-go/distbuild/pkg/client"
+	"gitlab.com/slon/shad-go/distbuild/pkg/dist"
+	"gitlab.com/slon/shad-go/distbuild/pkg/filecache"
+	"gitlab.com/slon/shad-go/distbuild/pkg/worker"
+	"gitlab.com/slon/shad-go/tools/testtool"

 	"go.uber.org/zap"
 )
@ -50,7 +49,11 @@ type Config struct {
 	WorkerCount int
 }

-func newEnv(t *testing.T, config *Config) (e *env, cancel func()) {
+func newEnv(t *testing.T, config *Config) (e *env) {
+	t.Cleanup(func() {
+		goleak.VerifyNone(t)
+	})
+
 	cwd, err := os.Getwd()
 	require.NoError(t, err)

@ -60,9 +63,9 @@ func newEnv(t *testing.T, config *Config) (e *env, cancel func()) {
 	rootDir := filepath.Join(absCWD, "workdir", t.Name())
 	require.NoError(t, os.RemoveAll(rootDir))

-	if err = os.MkdirAll(rootDir, 0o777); err != nil {
+	if err = os.MkdirAll(rootDir, 0777); err != nil {
 		if errors.Is(err, os.ErrPermission) {
-			rootDir, err = ioutil.TempDir("", "")
+			rootDir, err = os.MkdirTemp("", "")
 			require.NoError(t, err)
 		} else {
 			require.NoError(t, err)
@ -90,6 +93,10 @@ func newEnv(t *testing.T, config *Config) (e *env, cancel func()) {
 	env.Logger, err = cfg.Build()
 	require.NoError(t, err)

+	t.Cleanup(func() {
+		_ = env.Logger.Sync()
+	})
+
 	t.Helper()
 	t.Logf("test is running inside %s; see test.log file for more info", filepath.Join("workdir", t.Name()))

@ -100,6 +107,7 @@ func newEnv(t *testing.T, config *Config) (e *env, cancel func()) {

 	var cancelRootContext func()
 	env.Ctx, cancelRootContext = context.WithCancel(context.Background())
+	t.Cleanup(cancelRootContext)

 	env.Client = client.NewClient(
 		env.Logger.Named("client"),
@ -113,6 +121,7 @@ func newEnv(t *testing.T, config *Config) (e *env, cancel func()) {
 		env.Logger.Named("coordinator"),
 		coordinatorCache,
 	)
+	t.Cleanup(env.Coordinator.Stop)

 	router := http.NewServeMux()
 	router.Handle("/coordinator/", http.StripPrefix("/coordinator", env.Coordinator))
@ -161,6 +170,11 @@ func newEnv(t *testing.T, config *Config) (e *env, cancel func()) {
 		}
 	}()

+	t.Cleanup(func() {
+		cancelRootContext()
+		_ = env.HTTP.Shutdown(context.Background())
+	})
+
 	for _, w := range env.Workers {
 		go func(w *worker.Worker) {
 			err := w.Run(env.Ctx)
@ -181,20 +195,14 @@ func newEnv(t *testing.T, config *Config) (e *env, cancel func()) {
 		}
 	}()

-	return env, func() {
-		cancelRootContext()
-		_ = env.HTTP.Shutdown(context.Background())
-		_ = env.Logger.Sync()
-
-		goleak.VerifyNone(t)
-	}
+	return env
 }

 func newWinFileSink(u *url.URL) (zap.Sink, error) {
 	if len(u.Opaque) > 0 {
 		// Remove leading slash left by url.Parse()
-		return os.OpenFile(u.Opaque[1:], os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0o644)
+		return os.OpenFile(u.Opaque[1:], os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644)
 	}
 	// if url.URL is empty, don't panic slice index error
-	return os.OpenFile(u.Opaque, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0o644)
+	return os.OpenFile(u.Opaque, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644)
 }
--- a/distbuild/disttest/recorder.go
+++ b/distbuild/disttest/recorder.go
@ -1,7 +1,7 @@
 package disttest

 import (
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 type JobResult struct {
--- a/distbuild/disttest/single_worker_test.go
+++ b/distbuild/disttest/single_worker_test.go
@ -2,13 +2,14 @@ package disttest

 import (
 	"fmt"
-	"io/ioutil"
+	"io"
+	"os"
 	"testing"

 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 var singleWorkerConfig = &Config{WorkerCount: 1}
@ -26,8 +27,7 @@ var echoGraph = build.Graph{
 }

 func TestSingleCommand(t *testing.T) {
-	env, cancel := newEnv(t, singleWorkerConfig)
-	defer cancel()
+	env := newEnv(t, singleWorkerConfig)

 	recorder := NewRecorder()
 	require.NoError(t, env.Client.Build(env.Ctx, echoGraph, recorder))
@ -37,10 +37,9 @@ func TestSingleCommand(t *testing.T) {
 }

 func TestJobCaching(t *testing.T) {
-	env, cancel := newEnv(t, singleWorkerConfig)
-	defer cancel()
+	env := newEnv(t, singleWorkerConfig)

-	tmpFile, err := ioutil.TempFile("", "")
+	tmpFile, err := os.CreateTemp("", "")
 	require.NoError(t, err)

 	graph := build.Graph{
@ -62,12 +61,12 @@ func TestJobCaching(t *testing.T) {
 	assert.Len(t, recorder.Jobs, 1)
 	assert.Equal(t, &JobResult{Stdout: "OK\n", Code: new(int)}, recorder.Jobs[build.ID{'a'}])

-	require.NoError(t, ioutil.WriteFile(tmpFile.Name(), []byte("NOTOK\n"), 0o666))
+	require.NoError(t, os.WriteFile(tmpFile.Name(), []byte("NOTOK\n"), 0666))

 	// Second build must get results from cache.
 	require.NoError(t, env.Client.Build(env.Ctx, graph, NewRecorder()))

-	output, err := ioutil.ReadAll(tmpFile)
+	output, err := io.ReadAll(tmpFile)
 	require.NoError(t, err)
 	require.Equal(t, []byte("NOTOK\n"), output)
 }
@ -94,8 +93,7 @@ var sourceFilesGraph = build.Graph{
 }

 func TestSourceFiles(t *testing.T) {
-	env, cancel := newEnv(t, singleWorkerConfig)
-	defer cancel()
+	env := newEnv(t, singleWorkerConfig)

 	recorder := NewRecorder()
 	require.NoError(t, env.Client.Build(env.Ctx, sourceFilesGraph, recorder))
@ -125,8 +123,7 @@ var artifactTransferGraph = build.Graph{
 }

 func TestArtifactTransferBetweenJobs(t *testing.T) {
-	env, cancel := newEnv(t, singleWorkerConfig)
-	defer cancel()
+	env := newEnv(t, singleWorkerConfig)

 	recorder := NewRecorder()
 	require.NoError(t, env.Client.Build(env.Ctx, artifactTransferGraph, recorder))
--- a/distbuild/disttest/three_workers_test.go
+++ b/distbuild/disttest/three_workers_test.go
@ -9,14 +9,13 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 var threeWorkerConfig = &Config{WorkerCount: 3}

 func TestArtifactTransferBetweenWorkers(t *testing.T) {
-	env, cancel := newEnv(t, threeWorkerConfig)
-	defer cancel()
+	env := newEnv(t, threeWorkerConfig)

 	baseJob := build.Job{
 		ID:   build.ID{'a'},
--- a/distbuild/pkg/api/build.go
+++ b/distbuild/pkg/api/build.go
@ -3,7 +3,7 @@ package api
 import (
 	"context"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 type BuildRequest struct {
@ -25,7 +25,8 @@ type BuildFailed struct {
 	Error string
 }

-type BuildFinished struct{}
+type BuildFinished struct {
+}

 type UploadDone struct{}

@ -33,7 +34,8 @@ type SignalRequest struct {
 	UploadDone *UploadDone
 }

-type SignalResponse struct{}
+type SignalResponse struct {
+}

 type StatusWriter interface {
 	Started(rsp *BuildStarted) error
--- a/distbuild/pkg/api/build_client.go
+++ b/distbuild/pkg/api/build_client.go
@ -7,10 +7,11 @@ import (

 	"go.uber.org/zap"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

-type BuildClient struct{}
+type BuildClient struct {
+}

 func NewBuildClient(l *zap.Logger, endpoint string) *BuildClient {
 	panic("implement me")
--- a/distbuild/pkg/api/build_test.go
+++ b/distbuild/pkg/api/build_test.go
@ -12,9 +12,9 @@ import (
 	"github.com/stretchr/testify/require"
 	"go.uber.org/zap/zaptest"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/api"
-	mock "gitlab.com/manytask/itmo-go/public/distbuild/pkg/api/mock"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/api"
+	mock "gitlab.com/slon/shad-go/distbuild/pkg/api/mock"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 //go:generate mockgen -package mock -destination mock/mock.go . Service
@ -28,7 +28,6 @@ type env struct {

 func (e *env) stop() {
 	e.server.Close()
-	e.ctrl.Finish()
 }

 func newEnv(t *testing.T) (*env, func()) {
@ -56,8 +55,8 @@ func TestBuildSignal(t *testing.T) {

 	ctx := context.Background()

-	buildIDa := build.ID{0o1}
-	buildIDb := build.ID{0o2}
+	buildIDa := build.ID{01}
+	buildIDb := build.ID{02}
 	req := &api.SignalRequest{}
 	rsp := &api.SignalResponse{}

@ -91,10 +90,10 @@ func TestBuildRunning(t *testing.T) {

 	ctx := context.Background()

-	buildID := build.ID{0o2}
+	buildID := build.ID{02}

 	req := &api.BuildRequest{
-		Graph: build.Graph{SourceFiles: map[build.ID]string{{0o1}: "a.txt"}},
+		Graph: build.Graph{SourceFiles: map[build.ID]string{{01}: "a.txt"}},
 	}

 	started := &api.BuildStarted{ID: buildID}
@ -141,7 +140,7 @@ func TestBuildResultsStreaming(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()

-	buildID := build.ID{0o2}
+	buildID := build.ID{02}
 	req := &api.BuildRequest{}
 	started := &api.BuildStarted{ID: buildID}

--- a/distbuild/pkg/api/heartbeat.go
+++ b/distbuild/pkg/api/heartbeat.go
@ -3,7 +3,7 @@ package api
 import (
 	"context"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 // JobResult описывает результат работы джоба.
--- a/distbuild/pkg/api/heartbeat_test.go
+++ b/distbuild/pkg/api/heartbeat_test.go
@ -11,16 +11,15 @@ import (
 	"github.com/stretchr/testify/require"
 	"go.uber.org/zap/zaptest"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/api"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/api/mock"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/api"
+	"gitlab.com/slon/shad-go/distbuild/pkg/api/mock"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 //go:generate mockgen -package mock -destination mock/heartbeat.go . HeartbeatService

 func TestHeartbeat(t *testing.T) {
 	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()

 	l := zaptest.NewLogger(t)
 	m := mock.NewMockHeartbeatService(ctrl)
--- a/distbuild/pkg/api/mock/heartbeat.go
+++ b/distbuild/pkg/api/mock/heartbeat.go
@ -1,5 +1,5 @@
 // Code generated by MockGen. DO NOT EDIT.
-// Source: gitlab.com/manytask/itmo-go/public/distbuild/pkg/api (interfaces: HeartbeatService)
+// Source: gitlab.com/slon/shad-go/distbuild/pkg/api (interfaces: HeartbeatService)

 // Package mock is a generated GoMock package.
 package mock
@ -7,7 +7,7 @@ package mock
 import (
 	context "context"
 	gomock "github.com/golang/mock/gomock"
-	api "gitlab.com/manytask/itmo-go/public/distbuild/pkg/api"
+	api "gitlab.com/slon/shad-go/distbuild/pkg/api"
 	reflect "reflect"
 )

--- a/distbuild/pkg/api/mock/mock.go
+++ b/distbuild/pkg/api/mock/mock.go
@ -1,5 +1,5 @@
 // Code generated by MockGen. DO NOT EDIT.
-// Source: gitlab.com/manytask/itmo-go/public/distbuild/pkg/api (interfaces: Service)
+// Source: gitlab.com/slon/shad-go/distbuild/pkg/api (interfaces: Service)

 // Package mock is a generated GoMock package.
 package mock
@ -7,8 +7,8 @@ package mock
 import (
 	context "context"
 	gomock "github.com/golang/mock/gomock"
-	api "gitlab.com/manytask/itmo-go/public/distbuild/pkg/api"
-	build "gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	api "gitlab.com/slon/shad-go/distbuild/pkg/api"
+	build "gitlab.com/slon/shad-go/distbuild/pkg/build"
 	reflect "reflect"
 )

--- a/distbuild/pkg/artifact/cache.go
+++ b/distbuild/pkg/artifact/cache.go
@ -4,12 +4,11 @@ import (
 	"encoding/hex"
 	"errors"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"sync"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 var (
@ -34,18 +33,18 @@ func NewCache(root string) (*Cache, error) {
 	if err := os.RemoveAll(tmpDir); err != nil {
 		return nil, err
 	}
-	if err := os.MkdirAll(tmpDir, 0o777); err != nil {
+	if err := os.MkdirAll(tmpDir, 0777); err != nil {
 		return nil, err
 	}

 	cacheDir := filepath.Join(root, "c")
-	if err := os.MkdirAll(cacheDir, 0o777); err != nil {
+	if err := os.MkdirAll(cacheDir, 0777); err != nil {
 		return nil, err
 	}

 	for i := 0; i < 256; i++ {
 		d := hex.EncodeToString([]byte{uint8(i)})
-		if err := os.MkdirAll(filepath.Join(cacheDir, d), 0o777); err != nil {
+		if err := os.MkdirAll(filepath.Join(cacheDir, d), 0777); err != nil {
 			return nil, err
 		}
 	}
@ -110,13 +109,13 @@ func (c *Cache) writeUnlock(id build.ID) {
 }

 func (c *Cache) Range(artifactFn func(artifact build.ID) error) error {
-	shards, err := ioutil.ReadDir(c.cacheDir)
+	shards, err := os.ReadDir(c.cacheDir)
 	if err != nil {
 		return err
 	}

 	for _, shard := range shards {
-		dirs, err := ioutil.ReadDir(filepath.Join(c.cacheDir, shard.Name()))
+		dirs, err := os.ReadDir(filepath.Join(c.cacheDir, shard.Name()))
 		if err != nil {
 			return err
 		}
@ -151,7 +150,7 @@ func (c *Cache) Create(artifact build.ID) (path string, commit, abort func() err
 	}

 	path = filepath.Join(c.tmpDir, artifact.String())
-	if err = os.MkdirAll(path, 0o777); err != nil {
+	if err = os.MkdirAll(path, 0777); err != nil {
 		c.writeUnlock(artifact)
 		return
 	}
--- a/distbuild/pkg/artifact/cache_test.go
+++ b/distbuild/pkg/artifact/cache_test.go
@ -2,15 +2,14 @@ package artifact_test

 import (
 	"errors"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"

 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/artifact"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/artifact"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 type testCache struct {
@ -23,7 +22,7 @@ func (c *testCache) cleanup() {
 }

 func newTestCache(t *testing.T) *testCache {
-	tmpDir, err := ioutil.TempDir("", "")
+	tmpDir, err := os.MkdirTemp("", "")
 	require.NoError(t, err)

 	cache, err := artifact.NewCache(tmpDir)
--- a/distbuild/pkg/artifact/client.go
+++ b/distbuild/pkg/artifact/client.go
@ -5,7 +5,7 @@ package artifact
 import (
 	"context"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 // Download artifact from remote cache into local cache.
--- a/distbuild/pkg/artifact/client_test.go
+++ b/distbuild/pkg/artifact/client_test.go
@ -2,17 +2,17 @@ package artifact_test

 import (
 	"context"
-	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
+	"os"
 	"path/filepath"
 	"testing"

 	"github.com/stretchr/testify/require"
 	"go.uber.org/zap/zaptest"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/artifact"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/artifact"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 func TestArtifactTransfer(t *testing.T) {
@ -23,7 +23,7 @@ func TestArtifactTransfer(t *testing.T) {

 	dir, commit, _, err := remoteCache.Create(id)
 	require.NoError(t, err)
-	require.NoError(t, ioutil.WriteFile(filepath.Join(dir, "a.txt"), []byte("foobar"), 0o777))
+	require.NoError(t, os.WriteFile(filepath.Join(dir, "a.txt"), []byte("foobar"), 0777))
 	require.NoError(t, commit())

 	l := zaptest.NewLogger(t)
@ -42,7 +42,7 @@ func TestArtifactTransfer(t *testing.T) {
 	require.NoError(t, err)
 	defer unlock()

-	content, err := ioutil.ReadFile(filepath.Join(dir, "a.txt"))
+	content, err := os.ReadFile(filepath.Join(dir, "a.txt"))
 	require.NoError(t, err)
 	require.Equal(t, []byte("foobar"), content)

--- a/distbuild/pkg/build/graph.go
+++ b/distbuild/pkg/build/graph.go
@ -39,7 +39,7 @@ type Job struct {
 //	exec - выполняет произвольную команду
 //	cat  - записывает строку в файл
 //
-// Все строки в описании команды могут содержать в себе на переменные. Перед выполнением
+// Все строки в описании команды могут содержать в себе ссылки на контекстные переменные. Перед выполнением
 // реальной команды, переменные заменяются на их реальные значения.
 //
 //	{{.OutputDir}} - абсолютный путь до выходной директории джоба.
--- a/distbuild/pkg/client/build.go
+++ b/distbuild/pkg/client/build.go
@ -7,10 +7,11 @@ import (

 	"go.uber.org/zap"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

-type Client struct{}
+type Client struct {
+}

 func NewClient(
 	l *zap.Logger,
--- a/distbuild/pkg/dist/coordinator.go
+++ b/distbuild/pkg/dist/coordinator.go
@ -8,11 +8,12 @@ import (

 	"go.uber.org/zap"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/filecache"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/scheduler"
+	"gitlab.com/slon/shad-go/distbuild/pkg/filecache"
+	"gitlab.com/slon/shad-go/distbuild/pkg/scheduler"
 )

-type Coordinator struct{}
+type Coordinator struct {
+}

 var defaultConfig = scheduler.Config{
 	CacheTimeout: time.Millisecond * 10,
@ -26,6 +27,8 @@ func NewCoordinator(
 	panic("implement me")
 }

+func (c *Coordinator) Stop() {}
+
 func (c *Coordinator) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	panic("implement me")
 }
--- a/distbuild/pkg/filecache/client.go
+++ b/distbuild/pkg/filecache/client.go
@ -7,10 +7,11 @@ import (

 	"go.uber.org/zap"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

-type Client struct{}
+type Client struct {
+}

 func NewClient(l *zap.Logger, endpoint string) *Client {
 	panic("implement me")
--- a/distbuild/pkg/filecache/client_test.go
+++ b/distbuild/pkg/filecache/client_test.go
@ -3,9 +3,9 @@ package filecache_test
 import (
 	"bytes"
 	"context"
-	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
+	"os"
 	"path/filepath"
 	"sync"
 	"testing"
@ -14,8 +14,8 @@ import (
 	"github.com/stretchr/testify/require"
 	"go.uber.org/zap/zaptest"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/filecache"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/filecache"
 )

 type env struct {
@ -52,7 +52,7 @@ func TestFileUpload(t *testing.T) {
 	content := bytes.Repeat([]byte("foobar"), 1024*1024)

 	tmpFilePath := filepath.Join(env.cache.tmpDir, "foo.txt")
-	require.NoError(t, ioutil.WriteFile(tmpFilePath, content, 0o666))
+	require.NoError(t, os.WriteFile(tmpFilePath, content, 0666))

 	ctx := context.Background()

@ -65,7 +65,7 @@ func TestFileUpload(t *testing.T) {
 		require.NoError(t, err)
 		defer unlock()

-		actualContent, err := ioutil.ReadFile(path)
+		actualContent, err := os.ReadFile(path)
 		require.NoError(t, err)
 		require.Equal(t, content, actualContent)
 	})
@ -123,7 +123,7 @@ func TestFileDownload(t *testing.T) {
 	require.NoError(t, err)
 	defer unlock()

-	content, err := ioutil.ReadFile(path)
+	content, err := os.ReadFile(path)
 	require.NoError(t, err)
 	require.Equal(t, []byte("foobar"), content)
 }
--- a/distbuild/pkg/filecache/filecache.go
+++ b/distbuild/pkg/filecache/filecache.go
@ -6,8 +6,8 @@ import (
 	"os"
 	"path/filepath"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/artifact"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/artifact"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 var (
--- a/distbuild/pkg/filecache/filecache_test.go
+++ b/distbuild/pkg/filecache/filecache_test.go
@ -2,14 +2,13 @@ package filecache_test

 import (
 	"errors"
-	"io/ioutil"
 	"os"
 	"testing"

 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/filecache"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/filecache"
 )

 type testCache struct {
@ -18,7 +17,7 @@ type testCache struct {
 }

 func newCache(t *testing.T) *testCache {
-	tmpDir, err := ioutil.TempDir("", "filecache")
+	tmpDir, err := os.MkdirTemp("", "filecache")
 	require.NoError(t, err)

 	c, err := filecache.New(tmpDir)
@ -36,25 +35,25 @@ func (c *testCache) cleanup() {
 func TestFileCache(t *testing.T) {
 	cache := newCache(t)

-	_, abort, err := cache.Write(build.ID{0o1})
+	_, abort, err := cache.Write(build.ID{01})
 	require.NoError(t, err)
 	require.NoError(t, abort())

-	_, _, err = cache.Get(build.ID{0o1})
+	_, _, err = cache.Get(build.ID{01})
 	require.Truef(t, errors.Is(err, filecache.ErrNotFound), "%v", err)

-	f, _, err := cache.Write(build.ID{0o2})
+	f, _, err := cache.Write(build.ID{02})
 	require.NoError(t, err)

 	_, err = f.Write([]byte("foo bar"))
 	require.NoError(t, err)
 	require.NoError(t, f.Close())

-	path, unlock, err := cache.Get(build.ID{0o2})
+	path, unlock, err := cache.Get(build.ID{02})
 	require.NoError(t, err)
 	defer unlock()

-	content, err := ioutil.ReadFile(path)
+	content, err := os.ReadFile(path)
 	require.NoError(t, err)
 	require.Equal(t, []byte("foo bar"), content)
 }
--- a/distbuild/pkg/scheduler/scheduler.go
+++ b/distbuild/pkg/scheduler/scheduler.go
@ -8,8 +8,8 @@ import (

 	"go.uber.org/zap"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/api"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/build"
+	"gitlab.com/slon/shad-go/distbuild/pkg/api"
+	"gitlab.com/slon/shad-go/distbuild/pkg/build"
 )

 var TimeAfter = time.After
@ -25,7 +25,8 @@ type Config struct {
 	DepsTimeout  time.Duration
 }

-type Scheduler struct{}
+type Scheduler struct {
+}

 func NewScheduler(l *zap.Logger, config Config) *Scheduler {
 	panic("implement me")
@ -46,3 +47,7 @@ func (c *Scheduler) ScheduleJob(job *api.JobSpec) *PendingJob {
 func (c *Scheduler) PickJob(ctx context.Context, workerID api.WorkerID) *PendingJob {
 	panic("implement me")
 }
+
+func (c *Scheduler) Stop() {
+	panic("implement me")
+}
--- a/distbuild/pkg/tarstream/stream_test.go
+++ b/distbuild/pkg/tarstream/stream_test.go
@ -2,7 +2,6 @@ package tarstream_test

 import (
 	"bytes"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@ -10,11 +9,11 @@ import (
 	"github.com/stretchr/testify/require"
 	"golang.org/x/sys/unix"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/tarstream"
+	"gitlab.com/slon/shad-go/distbuild/pkg/tarstream"
 )

 func TestTarStream(t *testing.T) {
-	tmpDir, err := ioutil.TempDir("", "tarstream")
+	tmpDir, err := os.MkdirTemp("", "tarstream")
 	require.NoError(t, err)

 	t.Logf("running inside %s", tmpDir)
@ -22,15 +21,15 @@ func TestTarStream(t *testing.T) {
 	from := filepath.Join(tmpDir, "from")
 	to := filepath.Join(tmpDir, "to")

-	require.NoError(t, os.Mkdir(from, 0o777))
-	require.NoError(t, os.Mkdir(to, 0o777))
+	require.NoError(t, os.Mkdir(from, 0777))
+	require.NoError(t, os.Mkdir(to, 0777))

 	var buf bytes.Buffer

-	require.NoError(t, os.Mkdir(filepath.Join(from, "a"), 0o777))
-	require.NoError(t, os.MkdirAll(filepath.Join(from, "b", "c", "d"), 0o777))
-	require.NoError(t, ioutil.WriteFile(filepath.Join(from, "a", "x.bin"), []byte("xxx"), 0o777))
-	require.NoError(t, ioutil.WriteFile(filepath.Join(from, "b", "c", "y.txt"), []byte("yyy"), 0o666))
+	require.NoError(t, os.Mkdir(filepath.Join(from, "a"), 0777))
+	require.NoError(t, os.MkdirAll(filepath.Join(from, "b", "c", "d"), 0777))
+	require.NoError(t, os.WriteFile(filepath.Join(from, "a", "x.bin"), []byte("xxx"), 0777))
+	require.NoError(t, os.WriteFile(filepath.Join(from, "b", "c", "y.txt"), []byte("yyy"), 0666))

 	require.NoError(t, tarstream.Send(from, &buf))

@ -53,15 +52,15 @@ func TestTarStream(t *testing.T) {

 		require.Equal(t, mode.String(), st.Mode().String())

-		b, err := ioutil.ReadFile(path)
+		b, err := os.ReadFile(path)
 		require.NoError(t, err)
 		require.Equal(t, content, b)
 	}

-	checkFile(filepath.Join(to, "a", "x.bin"), []byte("xxx"), 0o755)
-	checkFile(filepath.Join(to, "b", "c", "y.txt"), []byte("yyy"), 0o644)
+	checkFile(filepath.Join(to, "a", "x.bin"), []byte("xxx"), 0755)
+	checkFile(filepath.Join(to, "b", "c", "y.txt"), []byte("yyy"), 0644)
 }

 func init() {
-	unix.Umask(0o022)
+	unix.Umask(0022)
 }
--- a/distbuild/pkg/worker/worker.go
+++ b/distbuild/pkg/worker/worker.go
@ -8,12 +8,13 @@ import (

 	"go.uber.org/zap"

-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/api"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/artifact"
-	"gitlab.com/manytask/itmo-go/public/distbuild/pkg/filecache"
+	"gitlab.com/slon/shad-go/distbuild/pkg/api"
+	"gitlab.com/slon/shad-go/distbuild/pkg/artifact"
+	"gitlab.com/slon/shad-go/distbuild/pkg/filecache"
 )

-type Worker struct{}
+type Worker struct {
+}

 func New(
 	workerID api.WorkerID,
--- a/docs/allocation_profiling.md
+++ b/docs/allocation_profiling.md
@ -7,7 +7,7 @@
 ✗ go test -v -run=^$ -bench=BenchmarkSprintf -memprofile=mem.out ./varfmt/...
 goos: linux
 goarch: amd64
-pkg: gitlab.com/manytask/itmo-go/public/varfmt
+pkg: gitlab.com/slon/shad-go/varfmt
 cpu: Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz
 BenchmarkSprintf
 BenchmarkSprintf/small
@ -17,7 +17,7 @@ BenchmarkSprintf/small_string-8  	13282659	        84.48 ns/op	      16 B/op
 BenchmarkSprintf/big
 BenchmarkSprintf/big-8           	   20089	     62372 ns/op	   16388 B/op	       1 allocs/op
 PASS
-ok  	gitlab.com/manytask/itmo-go/public/varfmt	4.363s
+ok  	gitlab.com/slon/shad-go/varfmt	4.363s
 ```

 Сэмплы профайлера будут записаны в бинарный файл `mem.out`.
@ -53,7 +53,7 @@ Showing nodes accounting for 715.73MB, 99.37% of 720.23MB total
 Dropped 24 nodes (cum <= 3.60MB)
      flat  flat%   sum%        cum   cum%
  715.73MB 99.37% 99.37%   716.73MB 99.51%  fmt.Sprintf
-         0     0% 99.37%   716.73MB 99.51%  gitlab.com/manytask/itmo-go/public/varfmt.BenchmarkSprintf.func1
+         0     0% 99.37%   716.73MB 99.51%  gitlab.com/slon/shad-go/varfmt.BenchmarkSprintf.func1
         0     0% 99.37%   716.73MB 99.51%  testing.(*B).launch
         0     0% 99.37%   716.73MB 99.51%  testing.(*B).runN
 (pprof)
--- a/docs/create-mr-form.png
+++ b/docs/create-mr-form.png
--- a/docs/create-mr.png
+++ b/docs/create-mr.png
--- a/docs/edit-and-fork.png
+++ b/docs/edit-and-fork.png
--- a/docs/edit-in-place.png
+++ b/docs/edit-in-place.png
--- a/docs/gitfame_review_comments.md
+++ b/docs/gitfame_review_comments.md
@ -63,8 +63,8 @@ import (
 	"flag"
 	"log"

-	"gitlab.com/manytask/itmo-go/public/gitfame/configs"
-	"gitlab.com/manytask/itmo-go/public/gitfame/internal"
+	"gitlab.com/slon/shad-go/gitfame/configs"
+	"gitlab.com/slon/shad-go/gitfame/internal"

 	"github.com/spf13/pflag"

@ -81,8 +81,8 @@ import (

 	"github.com/spf13/pflag"

-	"gitlab.com/manytask/itmo-go/public/gitfame/configs"
-	"gitlab.com/manytask/itmo-go/public/gitfame/internal"
+	"gitlab.com/slon/shad-go/gitfame/configs"
+	"gitlab.com/slon/shad-go/gitfame/internal"
 )
 ```

--- a/docs/syllabus.md
+++ b/docs/syllabus.md
@ -48,7 +48,7 @@
    Low-level programming. unsafe. Package binary. bytes.Buffer. cgo, syscall.

 11. Архитектура GC. Write barrier. Stack growth. GC pause. GOGC. sync.Pool. Шедулер
-    горутин. GOMACPROCS. Утечка тредов.
+    горутин. GOMAXPROCS. Утечка тредов.

 12. Go tooling. pprof. CPU and Memory profiling. Кросс-компиляция. GOOS, GOARCH. CGO_ENABLED=0.
    Build tags. go modules. godoc. Code generation.
--- a/dupcall/dupcall_test.go
+++ b/dupcall/dupcall_test.go
@ -8,6 +8,7 @@ import (

 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"gitlab.com/slon/shad-go/tools/testtool"
 	"go.uber.org/goleak"
 )

@ -38,6 +39,23 @@ func TestCall_Simple(t *testing.T) {
 	require.Equal(t, 2, called)
 }

+func TestCall_NoBusyWait(t *testing.T) {
+	done := make(chan struct{})
+	defer close(done)
+
+	var call Call
+	for i := 0; i < 10; i++ {
+		go func() {
+			_, _ = call.Do(context.Background(), func(ctx context.Context) (interface{}, error) {
+				<-done
+				return nil, nil
+			})
+		}()
+	}
+
+	testtool.VerifyNoBusyGoroutines(t)
+}
+
 func TestCall_Dedup(t *testing.T) {
 	defer goleak.VerifyNone(t)

--- a/excelwriter/README.md
+++ b/excelwriter/README.md
@ -0,0 +1,67 @@
+# excelwriter [reflect]
+
+В этой задаче нужно обернуть библиотеку для работы с exel'ем в reflect, реализовав интерфейс для построчной записи go объектов в excel
+```go
+type Writer interface {
+	WriteRow(r any) error
+}
+```
+r — это либо структура, либо map[smth]any, либо указатель на что-то из этого.
+
+smth — это либо строка, либо тип реализующий [TextMarshaler](https://pkg.go.dev/encoding#TextMarshaler)
+
+Как должны сериализовываться поля структур подробно написано в интерфейсе.
+Всё, что не специфицировано в доке и не проверяется тестами можно делать как сочтёте разумным.
+
+Также нужно реализовать конструктор
+```go
+func New(f *excelize.File) Writer {
+	panic("implement me")
+}
+```
+принимающий на вход инициализированный excel клиент.
+Можно считать, что excel файл изначально пустой у которого создана 1 страница. Все записи нужно делать в ней.
+
+Пример использования
+```go
+type Movie struct {
+	Title string
+	Year  int `xlsx:"release_year"`
+}
+
+func StoreMovies() {
+	f := excelize.NewFile()
+	_, _ = f.NewSheet("Sheet1")
+
+	w := excelwriter.New(f)
+	_ = w.WriteRow(&Movie{Title: "Blade Runner", Year: 1982})
+	_ = w.WriteRow(&Movie{Title: "Blade Runner 2049", Year: 2017})
+	_ = w.WriteRow(map[string]any{"title": "Into the wild", "release_year": 2007})
+
+	out, _ := os.Create("/tmp/movie.xlsx")
+	_, _ = f.WriteTo(out)
+}
+```
+
+В результате будет создан excel документ со следующим содержимым
+```
+title	release_year
+Blade Runner	1982
+Blade Runner 2049	2017
+Into the wild	2007
+```
+
+В первой строке хранятся имена колонок, которые вычисляются из имён полей, тэгов и ключей map'ов.
+
+Разные структуры могут превращаться в разные наборы колонок.
+Для каждого уникального имени должна быть ровно одна колонка, их нужно "создавать" по мере возникновения.
+
+Новые ключи каждого конкретного мапа добавляются в колонки в отсортированном порядке, чтобы при перезапусках на одних и тех же данных получались одинаковые excel'ки.
+
+Помимо имён полей в xlsx тэгах для числовых полей нужно поддержать стили форматирования.
+Например, в excel нет отдельного типа для дат. Дата — это 15-и значный double (excel тип Number) со стилем форматирования `d-mmm-yy`. Библиотека для работы с excel'ем определяет [наборы популярных стилей](https://pkg.go.dev/github.com/xuri/excelize/v2#File.NewStyle) в виде enum'а `15 d-mmm-yy`. Это число 15 и нужно поддержать в тэге `xslx:"date,numfmt:15"`.
+
+## Вопросы со звёздочкой
+1. Как бы вы поддержали в тэгах стили форматирования ячеек (excelize.Fill, excelize.Border ...)?
+2. Как бы вы поддержали в тэгах кастомные стили форматирования числовых значений, те, что не входят в стандартный набор, например `0,"K"`?
+3. Как мог бы выглядеть Reader, совместимый с Writer'ом, читающий строчки из excel в Go структуры и map'ы?
--- a/excelwriter/writer.go
+++ b/excelwriter/writer.go
@ -0,0 +1,48 @@
+//go:build !solution
+
+package excelwriter
+
+import (
+	"github.com/xuri/excelize/v2"
+)
+
+type Writer interface {
+	// WriteRow appends struct fields or map values to excel sheet.
+	//
+	// Integers and floats are encoded as excel type Number.
+	// Strings are encoded as excel type Text.
+	// Booleans are encoded as excel type Logical.
+	//
+	// Pointer values are encoded as the value pointed to. A nil pointer is skipped.
+	//
+	// Values implementing encoding.TextMarshaler interface are encoded as excel Text.
+	//
+	// Interface values are encoded as the value contained in the interface. A nil interface is skipped.
+	//
+	// Channels and functions are skipped.
+	//
+	// Structs, maps, slices and arrays are marshaled into json and encoded as excel Text.
+	//
+	// Encoding of each struct field can be customized by format string
+	// stored under the "xlsx" key in the field's tag.
+	//
+	//	 // Field appears in excel under column "my_field".
+	//	 Field int `xlsx:"my_field"`
+	//
+	//	 // Field appears in excel under column "my_field" formatted with predeclared style 15 ("d-mmm-yy").
+	//	 // Only applicable for integers and floats.
+	//	 Field int `xlsx:"my_field,numfmt:15"`
+	//
+	//	// Field is ignored by this package
+	//	Field int `xlsx:"-"`
+	//
+	// The first row is reserved for column names.
+	// For structs column name must be either lowercase field name or the name from "xlsx" tag if present.
+	// For maps column name is a map key.
+	// If map key implements encoding.TextMarshaler then column name is string(key.MarshalText()).
+	WriteRow(r any) error
+}
+
+func New(f *excelize.File) Writer {
+	panic("implement me")
+}
--- a/excelwriter/writer_test.go
+++ b/excelwriter/writer_test.go
@ -0,0 +1,268 @@
+package excelwriter_test
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"github.com/xuri/excelize/v2"
+
+	"gitlab.com/slon/shad-go/excelwriter"
+)
+
+const Sheet = "Sheet1"
+
+type MyInt int
+
+type Basic struct {
+	I    int    `xlsx:"i"`
+	UI   uint   `xlsx:"ui"`
+	I16  int16  `xlsx:"i_16"`
+	UI16 uint16 `xlsx:"ui_16"`
+	I32  int32  `xlsx:"i_32"`
+	UI32 uint32 `xlsx:"ui_32"`
+	I64  int64  `xlsx:"i_64"`
+	UI64 uint64 `xlsx:"ui_64"`
+
+	Float  float32 `xlsx:"float"`
+	Double float64 `xlsx:"double"`
+	Bool   bool    `xlsx:"bool"`
+	String string  `xlsx:"string"`
+
+	MyInt int `xlsx:"my_int"`
+}
+
+type Inner struct {
+	Name string `xlsx:"name"`
+}
+
+type TextInt int
+
+func (i TextInt) MarshalText() ([]byte, error) {
+	return []byte("__" + fmt.Sprint(i) + "__"), nil
+}
+
+type TextStruct struct {
+	V string
+}
+
+func (s TextStruct) MarshalText() (text []byte, err error) {
+	return []byte("__" + s.V + "__"), nil
+}
+
+func TestWriter_basic(t *testing.T) {
+	f := excelize.NewFile()
+	_, err := f.NewSheet(Sheet)
+	require.NoError(t, err)
+
+	w := excelwriter.New(f)
+
+	b := &Basic{
+		I:    -1,
+		UI:   1,
+		I16:  -16,
+		UI16: 16,
+		I32:  -32,
+		UI32: 32,
+		I64:  -64,
+		UI64: 64,
+
+		Float:  -2.5,
+		Double: 5.5,
+		Bool:   true,
+		String: "hello",
+
+		MyInt: 23,
+	}
+	require.NoError(t, w.WriteRow(b))
+
+	storeFile(t, f, "basic")
+
+	rows := readAll(t, f, true)
+	require.Equal(t, []string{"i", "ui", "i_16", "ui_16", "i_32", "ui_32", "i_64", "ui_64", "float", "double", "bool", "string", "my_int"}, rows[0])
+	require.Equal(t, []string{"-1", "1", "-16", "16", "-32", "32", "-64", "64", "-2.5", "5.5", "1", "hello", "23"}, rows[1])
+}
+
+func TestWriter_map(t *testing.T) {
+	f := excelize.NewFile()
+	_, err := f.NewSheet(Sheet)
+	require.NoError(t, err)
+
+	w := excelwriter.New(f)
+
+	require.NoError(t, w.WriteRow(map[string]any{
+		"id":    29,
+		"name":  "hello",
+		"title": "yo",
+	}))
+
+	require.NoError(t, w.WriteRow(map[string]any{}))
+
+	require.NoError(t, w.WriteRow(map[TextStruct]any{
+		{"id"}:   18,
+		{"name"}: "tm",
+	}))
+
+	storeFile(t, f, "map")
+
+	rows := readAll(t, f, true)
+	require.Equal(t, []string{"id", "name", "title", "__id__", "__name__"}, rows[0])
+	require.Equal(t, []string{"29", "hello", "yo"}, rows[1])
+	require.Equal(t, []string{"", "", "", "18", "tm"}, rows[2])
+}
+
+type E struct {
+	ID      string `xlsx:"id"`
+	NoTag   string
+	Skipped int     `xlsx:"-"`
+	private float32 `xlsx:"private"`
+
+	TextInt    TextInt    `xlsx:"text-int"`
+	TextStruct TextStruct `xlsx:"text-struct"`
+
+	Struct    Inner  `xlsx:"inner"`
+	StructPtr *Inner `xlsx:"inner-ptr"`
+
+	Slice []int  `xlsx:"slice"`
+	Array [2]int `xlsx:"arr"`
+
+	Map   map[string]string     `xlsx:"map"`
+	TMMap map[TextStruct]string `xlsx:"tm-map"`
+
+	F  func()   `xlsx:"func"`
+	Ch chan int `xlsx:"chan"`
+}
+
+func TestWriter_elaborate(t *testing.T) {
+	f := excelize.NewFile()
+	_, err := f.NewSheet("Sheet1")
+	require.NoError(t, err)
+
+	w := excelwriter.New(f)
+
+	e := &E{
+		ID:         "42",
+		NoTag:      "no-tag",
+		Skipped:    29,
+		private:    2,
+		TextInt:    77,
+		TextStruct: TextStruct{V: "text-struct"},
+		Struct:     Inner{Name: "inner"},
+		StructPtr:  &Inner{Name: "inner-ptr"},
+		Slice:      []int{1, 2, 3},
+		Array:      [2]int{4, 5},
+		Map:        map[string]string{"foo": "bar"},
+		TMMap:      map[TextStruct]string{{"foo"}: "bar"},
+		F:          func() { fmt.Println("hello") },
+		Ch:         make(chan int, 10),
+	}
+	require.NoError(t, w.WriteRow(e))
+
+	storeFile(t, f, "elaborate")
+
+	rows := readAll(t, f, true)
+	require.Equal(t, []string{"id", "notag", "private", "text-int", "text-struct", "inner", "inner-ptr", "slice", "arr", "map", "tm-map"}, rows[0])
+	require.Equal(t, []string{"42", "no-tag", "2", "__77__", "__text-struct__", `{"Name":"inner"}`, `{"Name":"inner-ptr"}`, "[1,2,3]", "[4,5]", `{"foo":"bar"}`, `{"__foo__":"bar"}`}, rows[1])
+}
+
+func TestWriter_ptr(t *testing.T) {
+	f := excelize.NewFile()
+	_, err := f.NewSheet(Sheet)
+	require.NoError(t, err)
+
+	w := excelwriter.New(f)
+
+	require.NoError(t, w.WriteRow(struct{ Name string }{"foo"}))
+	require.NoError(t, w.WriteRow(&struct{ Name string }{"bar"}))
+	require.NoError(t, w.WriteRow(map[string]string{"name": "baz"}))
+	require.NoError(t, w.WriteRow(&map[string]string{"name": "qux"}))
+
+	storeFile(t, f, "ptr")
+
+	rows := readAll(t, f, true)
+	require.Equal(t, []string{"name"}, rows[0])
+	require.Equal(t, []string{"foo"}, rows[1])
+	require.Equal(t, []string{"bar"}, rows[2])
+	require.Equal(t, []string{"baz"}, rows[3])
+	require.Equal(t, []string{"qux"}, rows[4])
+}
+
+func TestWriter_unsupported(t *testing.T) {
+	f := excelize.NewFile()
+	_, err := f.NewSheet("Sheet1")
+	require.NoError(t, err)
+
+	w := excelwriter.New(f)
+
+	require.Error(t, w.WriteRow(2))
+	require.Error(t, w.WriteRow(nil))
+	var b *Basic
+	require.Error(t, w.WriteRow(b))
+}
+
+type S struct {
+	P  float64 `xlsx:"percent,numfmt:9"`
+	D  int     `xlsx:"date,numfmt:15"`
+	D2 int     `xlsx:",numfmt:15"`
+	T  float64 `xlsx:"time,numfmt:22"`
+	Y  int     `xlsx:"jpy,numfmt:194"`
+}
+
+func TestWriter_style(t *testing.T) {
+	f := excelize.NewFile()
+	_, err := f.NewSheet("Sheet1")
+	require.NoError(t, err)
+
+	w := excelwriter.New(f)
+
+	s := &S{
+		P:  0.5,
+		D:  100,
+		D2: 100,
+		T:  100.5,
+		Y:  200,
+	}
+	require.NoError(t, w.WriteRow(s))
+
+	storeFile(t, f, "style")
+
+	rows := readAll(t, f, false)
+	require.Equal(t, []string{"percent", "date", "d2", "time", "jpy"}, rows[0])
+	require.Equal(t, []string{"50%", "9-Apr-00", "9-Apr-00", "4/9/00 12:00", "¥200.00"}, rows[1])
+}
+
+func readAll(t *testing.T, f *excelize.File, raw bool) [][]string {
+	t.Helper()
+
+	var out [][]string
+
+	rows, err := f.Rows(Sheet)
+	require.NoError(t, err)
+
+	var opts []excelize.Options
+	if raw {
+		opts = append(opts, excelize.Options{RawCellValue: true})
+	}
+
+	for i := 1; rows.Next(); i++ {
+		row, err := rows.Columns(opts...)
+		require.NoError(t, err)
+
+		out = append(out, row)
+	}
+
+	return out
+}
+
+func storeFile(t *testing.T, f *excelize.File, prefix string) {
+	t.Helper()
+
+	out, err := os.CreateTemp("/tmp", prefix+"-*.xlsx")
+	require.NoError(t, err)
+
+	_, err = f.WriteTo(out)
+	require.NoError(t, err)
+
+	t.Logf("stored file in %s", out.Name())
+}
--- a/externalsort/sort_test.go
+++ b/externalsort/sort_test.go
@ -4,7 +4,6 @@ import (
 	"bufio"
 	"bytes"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path"
 	"strings"
@ -12,7 +11,7 @@ import (

 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/tools/testtool"
+	"gitlab.com/slon/shad-go/tools/testtool"
 )

 func TestMerge(t *testing.T) {
@ -33,6 +32,32 @@ func TestMerge(t *testing.T) {
 1
 1
 2
+`,
+		},
+		{
+			name: "with empty lines",
+			in: []string{`
+0`, `
+
+1
+1
+1`, `
+
+
+0
+2`},
+			out: `
+
+
+
+
+
+0
+0
+1
+1
+1
+2
 `,
 		},
 	} {
@ -65,7 +90,7 @@ func TestSort(t *testing.T) {
 	testDir := path.Join("./testdata", "sort")

 	readTestCase := func(dir string) (in []string, out string) {
-		files, err := ioutil.ReadDir(dir)
+		files, err := os.ReadDir(dir)
 		require.NoError(t, err)

 		for _, f := range files {
@ -84,7 +109,7 @@ func TestSort(t *testing.T) {
 		testCaseDir := path.Join(testDir, d)

 		t.Run(d, func(t *testing.T) {
-			tmpDir, err := ioutil.TempDir("", fmt.Sprintf("sort%s-", d))
+			tmpDir, err := os.MkdirTemp("", fmt.Sprintf("sort%s-", d))
 			require.NoError(t, err)
 			defer func() { _ = os.RemoveAll(tmpDir) }()

@ -95,7 +120,7 @@ func TestSort(t *testing.T) {
 			w := bufio.NewWriter(&buf)
 			require.NoError(t, Sort(w, in...))

-			expected, err := ioutil.ReadFile(out)
+			expected, err := os.ReadFile(out)
 			require.NoError(t, err)

 			require.NoError(t, w.Flush())
@ -107,7 +132,7 @@ func TestSort(t *testing.T) {
 func listDirs(t *testing.T, dir string) []string {
 	t.Helper()

-	files, err := ioutil.ReadDir(dir)
+	files, err := os.ReadDir(dir)
 	require.NoError(t, err)

 	var dirs []string
@ -134,11 +159,11 @@ func copyFiles(t *testing.T, in []string, dir string) []string {
 func copyFile(t *testing.T, f, dir string) string {
 	t.Helper()

-	data, err := ioutil.ReadFile(f)
+	data, err := os.ReadFile(f)
 	require.NoError(t, err)

 	dst := path.Join(dir, path.Base(f))
-	err = ioutil.WriteFile(dst, data, 0o644)
+	err = os.WriteFile(dst, data, 0644)
 	require.NoError(t, err)

 	return dst
--- a/externalsort/testdata/.gitattributes
+++ b/externalsort/testdata/.gitattributes
--- a/fetchall/main_test.go
+++ b/fetchall/main_test.go
@ -17,10 +17,10 @@ import (

 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/tools/testtool"
+	"gitlab.com/slon/shad-go/tools/testtool"
 )

-const fetchallImportPath = "gitlab.com/manytask/itmo-go/public/fetchall"
+const fetchallImportPath = "gitlab.com/slon/shad-go/fetchall"

 var binCache testtool.BinCache

--- a/fileleak/fileleak_test.go
+++ b/fileleak/fileleak_test.go
@ -3,7 +3,6 @@ package fileleak_test
 import (
 	"bytes"
 	"fmt"
-	"io/ioutil"
 	"net"
 	"os"
 	"syscall"
@ -11,8 +10,8 @@ import (

 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/fileleak"
-	"gitlab.com/manytask/itmo-go/public/tools/testtool"
+	"gitlab.com/slon/shad-go/fileleak"
+	"gitlab.com/slon/shad-go/tools/testtool"
 )

 type fakeT struct {
@ -75,7 +74,7 @@ func TestFileLeak_ReopenFile(t *testing.T) {
 	checkLeak(t, true, func() {
 		_ = f.Close()

-		ff, err := ioutil.TempFile("", "")
+		ff, err := os.CreateTemp("", "")
 		require.NoError(t, err)
 		f = ff
 	})
@ -129,6 +128,7 @@ func TestFileLeak_DupLeak(t *testing.T) {
 		var err error
 		fd, err = syscall.Dup(1)
 		require.NoError(t, err)
+
 	})
 }

--- a/firegod/Dockerfile
+++ b/firegod/Dockerfile
@ -0,0 +1,11 @@
+FROM golang:1.22
+
+RUN ["mkdir", "-p", "/build"]
+
+WORKDIR /build
+
+COPY . .
+
+RUN ["go", "build", "-tags", "solution", "-o", "/firegod", "./firegod"]
+
+ENTRYPOINT [ "/firegod", "-http=0.0.0.0:8080" ]
--- a/firegod/README.md
+++ b/firegod/README.md
@ -0,0 +1,55 @@
+# firegod
+
+В этой задаче вам нужно научиться пользоваться связкой prometheus+grafana для отладки собственного кода.
+
+Вам дан код сервиса. Нужно добавить в него метрики, и потом используя графану с помощью графиков ответить на ряд вопросов.
+
+В этой задаче нет автоматической проверки. Чтобы получить оценку, нужно закоммитить свои ответы вместе со скриншотами в репозиторий, и поменять значение константы в `Solved` в файле `main.go` на `true`.
+
+## Окружение
+
+В файле `docker-compose.yaml` описан тестовый стенд.
+
+- `prometheus` - контейнер с прометеем, который собирает метрики и выполняет запросы над ними.
+- `grafana` - контейнер с графаной, дающий удобный `Web UI` для работы с прометеем.
+- `my_service` - 5 реплик вашего сервиса.
+
+Чтобы запустит тестовый стенд, выполните команду `docker compose up --build`. Чтобы перезапустить стенд, остановите `docker compose` нажав `Ctrl+C` и перезапустите команду.
+
+После запуска стенда, проверьте что:
+  - [targets](http://localhost:9090/targets) показывает правильный список процессов. Один прометей в состоянии `up` и 5 копий вашего сервиса в состоянии `down` с ошибкой `server returned HTTP status 404 Not Found`.
+  - [grafana](http://localhost:3000/explore) пускает вас в интерфейс с логином `admin` и паролем `grafana`, а на странице Explore видно какие-то метрики (например `up`).
+
+## Сервис
+
+В пакете `dontlook` находится код сервиса. В него смотреть *нельзя*.
+
+Вам нужно дописать код сбора и экспорта метрик в файл `main.go`.
+
+1. Сделайте так, чтобы метрики экспортировались по запросу `GET /metrics`.
+2. Включите экспорт метрик go рантайма и процесса (если они уже не экспортируются по дефолту).
+3. Добавьте middleware записывающий метрики из http хендлеров.
+
+## Вопросы
+
+1. Сколько процессов каких сервисов подключено к прометею? (пример)
+
+**Ответ**: 1 прометей и 5 моих сервисов.
+
+![](screenshots/up.png)
+
+2. Какой процесс постоянно перезапускается?
+
+3. В каком процесс есть утечка файловых дескрипторов?
+
+4. В каком процессе есть утечка памяти?
+
+5. В каком процессе утекают горутины?
+
+6. Какой хендлер пятисотит больше всех?
+
+7. Сколько всего запросов в секунду приходит в сервис?
+
+8. Какой хендлер медленнее всех отвечает, если сравнивать по 90-ой перцентиле времени ответа?
+
+9. Какой хендлер генерирует больше всего трафика?
--- a/firegod/docker-compose.yaml
+++ b/firegod/docker-compose.yaml
@ -0,0 +1,62 @@
+services:
+  prometheus:
+    image: prom/prometheus
+    container_name: prometheus
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+    ports:
+      - 9090:9090
+    restart: unless-stopped
+    volumes:
+      - ./prometheus:/etc/prometheus
+
+  grafana:
+    image: grafana/grafana
+    container_name: grafana
+    ports:
+      - 3000:3000
+    restart: unless-stopped
+    environment:
+      - GF_SECURITY_ADMIN_USER=admin
+      - GF_SECURITY_ADMIN_PASSWORD=grafana
+    volumes:
+      - ./grafana:/etc/grafana/provisioning/datasources
+
+  my-service-0: &service
+    build:
+      context: ..
+      dockerfile: firegod/Dockerfile
+    restart: always
+    deploy:
+      resources:
+        limits:
+          cpus: '0.5'
+          memory: 100M
+
+    container_name: my-service-0
+    environment:
+      - REPLICA=0
+
+  my-service-1:
+    <<: *service
+    container_name: my-service-1
+    environment:
+      - REPLICA=1
+
+  my-service-2:
+    <<: *service
+    container_name: my-service-2
+    environment:
+      - REPLICA=2
+
+  my-service-3:
+    <<: *service
+    container_name: my-service-3
+    environment:
+      - REPLICA=3
+
+  my-service-4:
+    <<: *service
+    container_name: my-service-4
+    environment:
+      - REPLICA=4
--- a/firegod/dontlook/itoldyounottolook.go
+++ b/firegod/dontlook/itoldyounottolook.go
@ -0,0 +1,111 @@
+package dontlook
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"os"
+	"strings"
+	"sync/atomic"
+	"time"
+
+	"github.com/go-chi/chi/v5"
+)
+
+func NewService(r chi.Router) {
+	replica := os.Getenv("REPLICA")
+
+	switch replica {
+	case "0":
+		go func() {
+			for {
+				go func() { select {} }()
+
+				time.Sleep(time.Millisecond * 100)
+			}
+		}()
+
+	case "2":
+		go func() {
+			var buf []string
+			for i := 0; true; i++ {
+				buf = append(buf, strings.Repeat("f", 1<<20))
+				_ = buf
+
+				time.Sleep(time.Millisecond * 100 * time.Duration(i))
+			}
+		}()
+
+	case "3":
+		go func() {
+			for {
+				_, _ = net.Dial("tcp", "localhost:8080")
+				time.Sleep(time.Millisecond * 10)
+			}
+		}()
+
+	case "4":
+		go func() {
+			time.Sleep(time.Second * 15)
+			os.Exit(1)
+		}()
+	}
+
+	runClient := func(getUrl func() string) {
+		for {
+			go func() {
+				rsp, err := http.Get(fmt.Sprintf("http://localhost:8080%s", getUrl()))
+				if err != nil {
+					fmt.Fprintf(os.Stderr, "%v\n", err)
+					return
+				}
+
+				_, _ = io.ReadAll(rsp.Body)
+				_ = rsp.Body.Close()
+			}()
+
+			time.Sleep(time.Microsecond * 100)
+		}
+	}
+
+	r.Get("/apple", func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(200)
+		time.Sleep(time.Millisecond * 100)
+		_, _ = w.Write([]byte("OK"))
+	})
+	go runClient(func() string { return "/apple" })
+
+	r.Get("/banana", func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(200)
+		_, _ = w.Write(bytes.Repeat([]byte("f"), 1<<10))
+
+		if replica == "0" {
+			time.Sleep(time.Second)
+		}
+	})
+	go runClient(func() string { return "/banana" })
+
+	var k atomic.Int32
+	r.Get("/orange", func(w http.ResponseWriter, r *http.Request) {
+		if k.Add(1)%100 == 0 {
+			w.WriteHeader(500)
+		} else {
+			w.WriteHeader(200)
+		}
+
+	})
+	go runClient(func() string { return "/orange" })
+
+	r.Get("/kiwi/{id}", func(w http.ResponseWriter, r *http.Request) {
+		if replica == "3" {
+			w.WriteHeader(200)
+		} else {
+			w.WriteHeader(500)
+		}
+	})
+
+	var i atomic.Int32
+	go runClient(func() string { return fmt.Sprintf("/kiwi/%d", i.Add(1)) })
+}
--- a/firegod/grafana/datasource.yml
+++ b/firegod/grafana/datasource.yml
@ -0,0 +1,9 @@
+apiVersion: 1
+
+datasources:
+- name: Prometheus
+  type: prometheus
+  url: http://prometheus:9090 
+  isDefault: true
+  access: proxy
+  editable: true
--- a/firegod/main.go
+++ b/firegod/main.go
@ -0,0 +1,24 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"net/http"
+
+	"github.com/go-chi/chi/v5"
+	"gitlab.com/slon/shad-go/firegod/dontlook"
+)
+
+var Solved = false
+
+var flagPort = flag.String("http", "", "")
+
+var router = chi.NewRouter()
+
+func main() {
+	flag.Parse()
+
+	dontlook.NewService(router)
+
+	log.Fatal(http.ListenAndServe(*flagPort, router))
+}
--- a/firegod/main_test.go
+++ b/firegod/main_test.go
@ -0,0 +1,11 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestFiregod(t *testing.T) {
+	require.True(t, Solved)
+}
--- a/firegod/prometheus/prometheus.yml
+++ b/firegod/prometheus/prometheus.yml
@ -0,0 +1,36 @@
+global:
+  scrape_interval: 5s
+  evaluation_interval: 5s
+  scrape_timeout: 1s
+
+alerting:
+  alertmanagers:
+  - static_configs:
+    - targets: []
+    scheme: http
+    timeout: 1s
+    api_version: v1
+
+scrape_configs:
+- job_name: prometheus
+  honor_timestamps: true
+  scrape_interval: 5s
+  scrape_timeout: 1s
+  metrics_path: /metrics
+  scheme: http
+  static_configs:
+  - targets:
+    - localhost:9090
+- job_name: my-service
+  honor_timestamps: true
+  scrape_interval: 5s
+  scrape_timeout: 1s
+  metrics_path: /metrics
+  scheme: http
+  static_configs:
+  - targets:
+    - my-service-0:8080
+    - my-service-1:8080
+    - my-service-2:8080
+    - my-service-3:8080
+    - my-service-4:8080
--- a/firegod/screenshots/up.png
+++ b/firegod/screenshots/up.png
--- a/firewall/README.md
+++ b/firewall/README.md
@ -51,6 +51,6 @@ Forbidden
 ## Resources

 * project layout: https://github.com/golang-standards/project-layout
-* reverse proxy: https://en.wikipedia.org/wiki/Reverse_proxy
+* reverse proxy: https://pkg.go.dev/net/http/httputil#ReverseProxy
 * yaml: https://gopkg.in/yaml.v2
 * regexp: https://golang.org/pkg/regexp/
--- a/firewall/cmd/firewall/main_test.go
+++ b/firewall/cmd/firewall/main_test.go
@ -3,7 +3,6 @@ package main
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
 	"os"
@ -15,10 +14,10 @@ import (
 	"github.com/go-resty/resty/v2"
 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/tools/testtool"
+	"gitlab.com/slon/shad-go/tools/testtool"
 )

-const importPath = "gitlab.com/manytask/itmo-go/public/firewall/cmd/firewall"
+const importPath = "gitlab.com/slon/shad-go/firewall/cmd/firewall"

 var binCache testtool.BinCache

@ -36,7 +35,7 @@ func storeConfig(t *testing.T, conf string) (filename string, cleanup func()) {
 	t.Helper()

 	filename = path.Join(os.TempDir(), testtool.RandomName()+".yaml")
-	err := ioutil.WriteFile(filename, []byte(conf), 0o777)
+	err := os.WriteFile(filename, []byte(conf), 0777)
 	require.NoError(t, err)

 	cleanup = func() { _ = os.Remove(filename) }
--- a/forth/README.md
+++ b/forth/README.md
@ -79,6 +79,18 @@ Stack:
 а `definition` состоит из известных слов и чисел, разделённых пробелами.
 Слова можно переопределять.

+При реализации механизма определений обратите внимание на юнит-тест
+
+```go
+{
+    description: "no redefinition",
+    input:       []string{": foo 5 ;", ": bar foo ;", ": foo 6 ;", "bar foo"},
+    expected:    []int{5, 6},
+},
+```
+
+То есть семантика слова вычисляется непосредственно при определении и не меняется при переопределении "зависимостей".
+
 ### Проверка решения

 Для запуска тестов нужно выполнить следующую команду:
--- a/forth/eval_test.go
+++ b/forth/eval_test.go
@ -99,6 +99,11 @@ var testCases = []testCase{
 		input:       []string{"2 4 * 3 /"},
 		expected:    []int{2},
 	},
+	{
+		description: "add non-empty stack",
+		input:       []string{"1 2 3 +"},
+		expected:    []int{1, 5},
+	},
 	{
 		description: "dup",
 		input:       []string{"1 dup"},
--- a/genericsum/genericsum_test.go
+++ b/genericsum/genericsum_test.go
@ -9,7 +9,7 @@ import (
 	"github.com/stretchr/testify/require"
 	"go.uber.org/goleak"

-	"gitlab.com/manytask/itmo-go/public/genericsum"
+	"gitlab.com/slon/shad-go/genericsum"
 )

 func TestMin(t *testing.T) {
@ -184,11 +184,42 @@ func TestIsHermitianMatrix(t *testing.T) {
 		{7, 2, 12},
 		{9, 12, 19},
 	}))
+	assert.True(t, genericsum.IsHermitianMatrix([][]int8{
+		{-1, 7, 9},
+		{7, -2, 12},
+		{9, 12, -19},
+	}))
+	assert.True(t, genericsum.IsHermitianMatrix([][]uint16{
+		{1, 7, 9},
+		{7, 2, 12},
+		{9, 12, 19},
+	}))
 	assert.False(t, genericsum.IsHermitianMatrix([][]int{
 		{1, 12, 8},
 		{3, 4, 7},
 		{8, 7, 11},
 	}))
+	assert.False(t, genericsum.IsHermitianMatrix([][]int32{
+		{1, 112, 8},
+		{-3, 4, -7},
+		{8, 7, 11},
+	}))
+	assert.False(t, genericsum.IsHermitianMatrix([][]uint64{
+		{1, 12, 8},
+		{3, 4, 7},
+		{8, 7, 11},
+	}))
+
+	assert.True(t, genericsum.IsHermitianMatrix([][]float32{
+		{1.0, 7.0, 9.0},
+		{7.0, 2.0, 12.0},
+		{9.0, 12.0, 19.0},
+	}))
+	assert.False(t, genericsum.IsHermitianMatrix([][]float32{
+		{1.0, 12.0, 8.0},
+		{3.0, 4.0, 7.0},
+		{8.0, 7.0, 11.0},
+	}))
 	assert.True(t, genericsum.IsHermitianMatrix([][]complex64{
 		{1, 3 + 2i},
 		{3 - 2i, 4},
--- a/gitfame/README.md
+++ b/gitfame/README.md
@ -175,6 +175,11 @@ export PATH=$GOPATH/bin:$PATH

 После этого `gitfame` будет доступен всюду.

+В реализации вы можете использовать сторонние библиотеки, которые уже доступны в нашем [`go.mod`](../go.mod). Менять `go.mod` нельзя.
+
+Весь репозиторий курса - это один go модуль с одним go.mod файлом в корне. Корню репозитория соответствует импорт путь `gitlab.com/slon/shad-go`. Если вы создадите пакет в директории `gitfame/internal/git`, то импортировать его нужно будет по пути `gitlab.com/slon/shad-go/gitfame/internal/git`.
+
+
 ### Code review comments

 Прочитайте и исправьте [распространённые ошибки](../docs/gitfame_review_comments.md).
--- a/gitfame/test/integration/gitfame_test.go
+++ b/gitfame/test/integration/gitfame_test.go
@ -2,7 +2,6 @@ package integration

 import (
 	"bytes"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path"
@ -14,10 +13,10 @@ import (
 	"github.com/stretchr/testify/require"
 	"gopkg.in/yaml.v2"

-	"gitlab.com/manytask/itmo-go/public/tools/testtool"
+	"gitlab.com/slon/shad-go/tools/testtool"
 )

-const importPath = "gitlab.com/manytask/itmo-go/public/gitfame/cmd/gitfame"
+const importPath = "gitlab.com/slon/shad-go/gitfame/cmd/gitfame"

 var binCache testtool.BinCache

@ -43,7 +42,7 @@ func TestGitFame(t *testing.T) {
 		tc := ReadTestCase(t, filepath.Join(testsDir, dir))

 		t.Run(dir+"/"+tc.Name, func(t *testing.T) {
-			dir, err := ioutil.TempDir("", "gitfame-")
+			dir, err := os.MkdirTemp("", "gitfame-")
 			require.NoError(t, err)
 			defer func() { _ = os.RemoveAll(dir) }()

@ -75,7 +74,7 @@ func TestGitFame(t *testing.T) {
 func ListTestDirs(t *testing.T, path string) []string {
 	t.Helper()

-	files, err := ioutil.ReadDir(path)
+	files, err := os.ReadDir(path)
 	require.NoError(t, err)

 	var names []string
@ -109,7 +108,7 @@ func ReadTestCase(t *testing.T, path string) *TestCase {

 	desc := ReadTestDescription(t, path)

-	expected, err := ioutil.ReadFile(filepath.Join(path, "expected.out"))
+	expected, err := os.ReadFile(filepath.Join(path, "expected.out"))
 	require.NoError(t, err)

 	return &TestCase{TestDescription: desc, Expected: expected}
@ -126,7 +125,7 @@ type TestDescription struct {
 func ReadTestDescription(t *testing.T, path string) *TestDescription {
 	t.Helper()

-	data, err := ioutil.ReadFile(filepath.Join(path, "description.yaml"))
+	data, err := os.ReadFile(filepath.Join(path, "description.yaml"))
 	require.NoError(t, err)

 	var desc TestDescription
--- a/go.mod
+++ b/go.mod
@ -1,66 +1,80 @@
-module gitlab.com/manytask/itmo-go/public
+module gitlab.com/slon/shad-go

-go 1.18
+go 1.22.0

 require (
 	github.com/felixge/httpsnoop v1.0.3
 	github.com/go-chi/chi/v5 v5.0.8
+	github.com/go-git/go-git/v5 v5.11.0
 	github.com/go-redis/redis/v8 v8.11.5
 	github.com/go-resty/resty/v2 v2.1.0
 	github.com/gofrs/uuid v3.3.0+incompatible
-	github.com/golang/mock v1.4.1
-	github.com/google/go-cmp v0.5.9
+	github.com/golang/mock v1.6.0
+	github.com/google/btree v1.1.2
+	github.com/google/go-cmp v0.6.0
 	github.com/gorilla/handlers v1.4.2
 	github.com/gorilla/mux v1.7.4
 	github.com/gorilla/websocket v1.4.2
-	github.com/jackc/pgx/v4 v4.6.0
-	github.com/jonboulle/clockwork v0.1.0
+	github.com/jackc/pgx/v5 v5.5.3
+	github.com/jonboulle/clockwork v0.4.0
 	github.com/spf13/cobra v1.1.3
 	github.com/spf13/pflag v1.0.5
-	github.com/stretchr/testify v1.8.2
-	go.uber.org/goleak v1.0.0
-	go.uber.org/zap v1.14.0
+	github.com/stretchr/testify v1.8.4
+	go.uber.org/goleak v1.3.0
+	go.uber.org/zap v1.26.0
 	golang.org/x/exp v0.0.0-20230321023759-10a507213a29
 	golang.org/x/perf v0.0.0-20191209155426-36b577b0eb03
-	golang.org/x/sync v0.1.0
-	golang.org/x/sys v0.7.0
-	golang.org/x/tools v0.7.0
+	golang.org/x/sync v0.6.0
+	golang.org/x/sys v0.17.0
+	golang.org/x/tools v0.18.0
 	google.golang.org/grpc v1.54.0
-	google.golang.org/protobuf v1.30.0
+	google.golang.org/protobuf v1.33.0
 	gopkg.in/yaml.v2 v2.4.0
 )

 require (
-	github.com/BurntSushi/toml v0.3.1 // indirect
+	dario.cat/mergo v1.0.0 // indirect
+	github.com/Microsoft/go-winio v0.6.1 // indirect
+	github.com/ProtonMail/go-crypto v0.0.0-20230828082145-3c4c8a2d2371 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cloudflare/circl v1.3.3 // indirect
+	github.com/cyphar/filepath-securejoin v0.2.4 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/emirpasic/gods v1.18.1 // indirect
+	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
+	github.com/go-git/go-billy/v5 v5.5.0 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
-	github.com/jackc/chunkreader/v2 v2.0.1 // indirect
-	github.com/jackc/pgconn v1.5.0 // indirect
-	github.com/jackc/pgio v1.0.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
-	github.com/jackc/pgproto3/v2 v2.0.1 // indirect
-	github.com/jackc/pgservicefile v0.0.0-20200307190119-3430c5407db8 // indirect
-	github.com/jackc/pgtype v1.3.0 // indirect
-	github.com/kr/pretty v0.3.0 // indirect
-	github.com/lib/pq v1.10.0 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
+	github.com/jackc/puddle/v2 v2.2.1 // indirect
+	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
+	github.com/kevinburke/ssh_config v1.2.0 // indirect
+	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826 // indirect
+	github.com/pjbgf/sha1cd v0.3.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/rogpeppe/go-internal v1.8.0 // indirect
+	github.com/prometheus/client_golang v1.19.1 // indirect
+	github.com/prometheus/client_model v0.5.0 // indirect
+	github.com/prometheus/common v0.48.0 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/richardlehane/mscfb v1.0.4 // indirect
+	github.com/richardlehane/msoleps v1.0.3 // indirect
+	github.com/sergi/go-diff v1.1.0 // indirect
+	github.com/skeema/knownhosts v1.2.1 // indirect
 	github.com/stretchr/objx v0.5.0 // indirect
-	go.uber.org/atomic v1.5.0 // indirect
-	go.uber.org/multierr v1.3.0 // indirect
-	go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee // indirect
-	golang.org/x/crypto v0.5.0 // indirect
-	golang.org/x/lint v0.0.0-20190930215403-16217165b5de // indirect
-	golang.org/x/mod v0.9.0 // indirect
-	golang.org/x/net v0.9.0 // indirect
-	golang.org/x/text v0.9.0 // indirect
-	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+	github.com/xanzy/ssh-agent v0.3.3 // indirect
+	github.com/xuri/efp v0.0.0-20231025114914-d1ff6096ae53 // indirect
+	github.com/xuri/excelize/v2 v2.8.1 // indirect
+	github.com/xuri/nfp v0.0.0-20230919160717-d98342af3f05 // indirect
+	go.uber.org/multierr v1.10.0 // indirect
+	golang.org/x/crypto v0.19.0 // indirect
+	golang.org/x/mod v0.15.0 // indirect
+	golang.org/x/net v0.21.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
 	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
-	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+	gopkg.in/warnings.v0 v0.1.2 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	honnef.co/go/tools v0.0.1-2019.2.3 // indirect
 )
--- a/go.sum
+++ b/go.sum
@ -11,38 +11,50 @@ cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7
 cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
 cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
+dario.cat/mergo v1.0.0 h1:AGCNq9Evsj31mOgNPcLyXc+4PNABt905YmuqPYYpBWk=
+dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/GoogleCloudPlatform/cloudsql-proxy v0.0.0-20190129172621-c8b1d7a94ddf/go.mod h1:aJ4qN3TfrelA6NZ6AXsXRfmEVaYin3EDbSPJrKS8OXo=
+github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY=
+github.com/Microsoft/go-winio v0.6.1 h1:9/kr64B9VUZrLm5YYwbGtUJnMgqWVOdUAXu6Migciow=
+github.com/Microsoft/go-winio v0.6.1/go.mod h1:LRdKpFKfdobln8UmuiYcKPot9D2v6svN5+sAH+4kjUM=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/ProtonMail/go-crypto v0.0.0-20230828082145-3c4c8a2d2371 h1:kkhsdkhsCvIsutKu5zLMgWtgh9YxGCNAw8Ad8hjwfYg=
+github.com/ProtonMail/go-crypto v0.0.0-20230828082145-3c4c8a2d2371/go.mod h1:EjAoLdwvbIOoOQr3ihjnSoLZRtE8azugULFRteWMNc0=
 github.com/aclements/go-gg v0.0.0-20170118225347-6dbb4e4fefb0/go.mod h1:55qNq4vcpkIuHowELi5C8e+1yUHtoLoOUR9QU5j7Tes=
 github.com/aclements/go-moremath v0.0.0-20161014184102-0ff62e0875ff/go.mod h1:idZL3yvz4kzx1dsBOAC+oYv6L92P1oFEhUXUB1A/lwQ=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be h1:9AeTilPcZAjCFIImctFaOjnTIavg87rW78vTPkQqLI8=
+github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuWl6zY27l47sB3qLNK6tF2fkHG55UZxx8oIVo4=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
+github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
+github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
 github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
+github.com/bwesterb/go-ristretto v1.2.3/go.mod h1:fUIoIZaG73pV5biE2Blr2xEzDoMj7NFEuV9ekS419A0=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cockroachdb/apd v1.1.0 h1:3LFP3629v+1aKXU5Q37mxmRxX/pIu1nijXydLShEq5I=
-github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
+github.com/cloudflare/circl v1.3.3 h1:fE/Qz0QdIGqeWfnwq0RE0R7MI51s0M2E4Ga9kq5AEMs=
+github.com/cloudflare/circl v1.3.3/go.mod h1:5XYMA4rFBvNIrhs50XuiBJ15vF2pZn4nnUKZrLbUZFA=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
-github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/cyphar/filepath-securejoin v0.2.4 h1:Ugdm7cg7i6ZK6x3xDF1oEu1nfkyfH53EtKeQYTC3kyg=
+github.com/cyphar/filepath-securejoin v0.2.4/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@ -50,14 +62,29 @@ github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZm
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
+github.com/elazarl/goproxy v0.0.0-20230808193330-2592e75ae04a h1:mATvB/9r/3gvcejNsXKSkQ6lcIaNec2nyfOdlTBR2lU=
+github.com/elazarl/goproxy v0.0.0-20230808193330-2592e75ae04a/go.mod h1:Ro8st/ElPeALwNFlcTpWmkr6IoMFfkjXAvTHpevnDsM=
+github.com/emirpasic/gods v1.18.1 h1:FXtiHYKDGKCW2KzwZKx0iC0PQmdlorYgdFG9jPXJ1Bc=
+github.com/emirpasic/gods v1.18.1/go.mod h1:8tpGGwCnJ5H4r6BWwaV6OrWmMoPhUl5jm/FMNAnJvWQ=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/felixge/httpsnoop v1.0.3 h1:s/nj+GCswXYzN5v2DpNMuMQYe+0DDwt5WVCU6CWBdXk=
 github.com/felixge/httpsnoop v1.0.3/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
+github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
+github.com/gliderlabs/ssh v0.3.5 h1:OcaySEmAQJgyYcArR+gGGTHCyE7nvhEMTlYY+Dp8CpY=
+github.com/gliderlabs/ssh v0.3.5/go.mod h1:8XB4KraRrX39qHhT6yxPsHedjA08I/uBVwj4xC+/+z4=
 github.com/go-chi/chi/v5 v5.0.8 h1:lD+NLqFcAi1ovnVZpsnObHGW4xb4J8lNmoYVfECH1Y0=
 github.com/go-chi/chi/v5 v5.0.8/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
+github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 h1:+zs/tPmkDkHx3U66DAb0lQFJrpS6731Oaa12ikc+DiI=
+github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376/go.mod h1:an3vInlBmSxCcxctByoQdvwPiA7DTK7jaaFDBTtu0ic=
+github.com/go-git/go-billy/v5 v5.5.0 h1:yEY4yhzCDuMGSv83oGxiBotRzhwhNr8VZyphhiu+mTU=
+github.com/go-git/go-billy/v5 v5.5.0/go.mod h1:hmexnoNsr2SJU1Ju67OaNz5ASJY3+sHgFRpCtpDCKow=
+github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399 h1:eMje31YglSBqCdIqdhKBW8lokaMrL3uTkpGYlE2OOT4=
+github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399/go.mod h1:1OCfN199q1Jm3HZlxleg+Dw/mwps2Wbk9frAWm+4FII=
+github.com/go-git/go-git/v5 v5.11.0 h1:XIZc1p+8YzypNr34itUfSvYJcv+eYdTnTvOZ2vD3cA4=
+github.com/go-git/go-git/v5 v5.11.0/go.mod h1:6GFcX2P3NM7FPBfpePbpLd21XxsgdAt+lKqXmCUiUCY=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
@ -68,18 +95,19 @@ github.com/go-resty/resty/v2 v2.1.0 h1:Z6IefCpUMfnvItVJaJXWv/pMiiD11So35QgwEELsl
 github.com/go-resty/resty/v2 v2.1.0/go.mod h1:dZGr0i9PLlaaTD4H/hoZIDjQ+r6xq8mgbRzHZf7f2J8=
 github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
-github.com/gofrs/uuid v3.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/gofrs/uuid v3.3.0+incompatible h1:8K4tyRfvU1CYPgJsveYFQMhpFd/wXNM7iK6rR7UHz84=
 github.com/gofrs/uuid v3.3.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
+github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da h1:oI5xCqsCo564l8iNU+DwB5epxmsaqB+rhGL0m5jtYqE=
+github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y=
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@ -93,11 +121,13 @@ github.com/gonum/lapack v0.0.0-20181123203213-e4cdc5a0bff9/go.mod h1:XA3DeT6rxh2
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@ -338,14 +348,16 @@ golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTk
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@ -361,9 +373,15 @@ golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
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@ -375,8 +393,11 @@ golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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@ -384,25 +405,46 @@ golang.org/x/sys v0.0.0-20181026203630-95b1ffbd15a5/go.mod h1:STP8DvDyc/dI5b8T5h
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@ -414,26 +456,23 @@ golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3
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 golang.org/x/tools v0.0.0-20190606124116-d0a3d012864b/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190628153133-6cdbf07be9d0/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190816200558-6889da9d5479/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20190823170909-c4a336ef6a2f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20190911174233-4f2ddba30aff/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.7.0 h1:W4OVu8VVOaIO0yzWMNdepAulS7YfoS3Zabrm8DOXXU4=
-golang.org/x/tools v0.7.0/go.mod h1:4pg6aUX35JBAogB10C9AtvVL+qowtN4pT3CGSQex14s=
-golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
+golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
+golang.org/x/tools v0.18.0 h1:k8NLag8AGHnn+PHbl7g43CtqZAwG60vZkLqgyZgIHgQ=
+golang.org/x/tools v0.18.0/go.mod h1:GL7B4CwcLLeo59yx/9UWWuNOW1n3VZ4f5axWfML7Lcg=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.0.0-20170206182103-3d017632ea10/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
@ -466,16 +505,21 @@ google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp0
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng=
 google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
+google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
-gopkg.in/inconshreveable/log15.v2 v2.0.0-20180818164646-67afb5ed74ec/go.mod h1:aPpfJ7XW+gOuirDoZ8gHhLh3kZ1B08FtV2bbmy7Jv3s=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME=
+gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
@ -488,8 +532,5 @@ gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
-rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
-rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
--- a/gossip/gossip.go
+++ b/gossip/gossip.go
@ -5,7 +5,8 @@ package gossip
 import (
 	"time"

-	"gitlab.com/manytask/itmo-go/public/gossip/meshpb"
+	"gitlab.com/slon/shad-go/gossip/meshpb"
+	"google.golang.org/grpc"
 )

 type PeerConfig struct {
--- a/gossip/gossip_test.go
+++ b/gossip/gossip_test.go
@ -8,8 +8,8 @@ import (
 	"time"

 	"github.com/stretchr/testify/require"
-	"gitlab.com/manytask/itmo-go/public/gossip"
-	"gitlab.com/manytask/itmo-go/public/gossip/meshpb"
+	"gitlab.com/slon/shad-go/gossip"
+	"gitlab.com/slon/shad-go/gossip/meshpb"
 	"go.uber.org/goleak"
 	"google.golang.org/grpc"
 )
--- a/gossip/meshpb/protocol.proto
+++ b/gossip/meshpb/protocol.proto
@ -2,7 +2,7 @@

 syntax = "proto3";

-option go_package = "gitlab.com/manytask/itmo-go/public/gossip/meshpb";
+option go_package = "gitlab.com/slon/shad-go/gossip/meshpb";

 // PeerMeta is arbitrary message that is propagated with peer gossip.
 message PeerMeta {
--- a/gzep/README.md
+++ b/gzep/README.md
@ -6,14 +6,14 @@
 ```
 goos: linux
 goarch: amd64
-pkg: gitlab.com/manytask/itmo-go/public/gzep
+pkg: gitlab.com/slon/shad-go/gzep
 cpu: Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz
 BenchmarkEncodeSimple
 BenchmarkEncodeSimple-8   	    7047	    176628 ns/op	  813872 B/op	      17 allocs/op
 BenchmarkEncode
 BenchmarkEncode-8         	   41706	     32616 ns/op	      19 B/op	       0 allocs/op
 PASS
-ok  	gitlab.com/manytask/itmo-go/public/gzep	3.625s
+ok  	gitlab.com/slon/shad-go/gzep	3.625s
 ```

 ### С чего начать?
--- a/gzep/encode_test.go
+++ b/gzep/encode_test.go
@ -9,8 +9,8 @@ import (

 	"github.com/stretchr/testify/require"

-	"gitlab.com/manytask/itmo-go/public/gzep"
-	"gitlab.com/manytask/itmo-go/public/tools/testtool"
+	"gitlab.com/slon/shad-go/gzep"
+	"gitlab.com/slon/shad-go/tools/testtool"
 )

 func BenchmarkEncode(b *testing.B) {
@ -47,6 +47,7 @@ func TestEncode_RoundTrip(t *testing.T) {
 			require.NoError(t, err, tc.in)
 			require.Equal(t, tc.in, string(out))
 		})
+
 	}
 }

--- a/illegal/field_test.go
+++ b/illegal/field_test.go
@ -5,8 +5,8 @@ import (

 	"github.com/stretchr/testify/assert"

-	"gitlab.com/manytask/itmo-go/public/illegal"
-	"gitlab.com/manytask/itmo-go/public/illegal/internal"
+	"gitlab.com/slon/shad-go/illegal"
+	"gitlab.com/slon/shad-go/illegal/internal"
 )

 func TestIllegalField(t *testing.T) {
--- a/illegal/string_test.go
+++ b/illegal/string_test.go
@ -6,7 +6,7 @@ import (

 	"github.com/stretchr/testify/assert"

-	"gitlab.com/manytask/itmo-go/public/illegal"
+	"gitlab.com/slon/shad-go/illegal"
 )

 func TestStringFromBytes(t *testing.T) {
--- a/iprange/example_test.go
+++ b/iprange/example_test.go
@ -4,7 +4,7 @@ import (
 	"fmt"
 	"log"

-	"gitlab.com/manytask/itmo-go/public/iprange"
+	"gitlab.com/slon/shad-go/iprange"
 )

 func ExampleParseList() {
--- a/keylock/README.md
+++ b/keylock/README.md
@ -4,7 +4,7 @@

 В обычном `sync.Mutex` лок всего один. В один момент времени этот лок может находиться
 у одной горутины. В нашем примитиве локов может быть сколько угодно. Каждый лок мы идентифицируем
-ключём - строкой. Каждая горутина приходит к нам со списком ключей и хочет захватить сразу
+ключом - строкой. Каждая горутина приходит к нам со списком ключей и хочет захватить сразу
 все локи из этого списка. (Наша аналогия с `sync.Mutex` вовсе не значит, что нужно использовать
 `sync.Mutex` в реализации. Лучше использовать каналы, чтобы проще было реализовать отмену.)

--- a/keylock/keylock_test.go
+++ b/keylock/keylock_test.go
@ -1,14 +1,19 @@
 package keylock_test

 import (
+	"fmt"
+	"math/rand"
+	"slices"
 	"sync"
 	"testing"
 	"time"

+	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"go.uber.org/goleak"

-	"gitlab.com/manytask/itmo-go/public/keylock"
+	"gitlab.com/slon/shad-go/keylock"
+	"gitlab.com/slon/shad-go/tools/testtool"
 )

 func timeout(d time.Duration) <-chan struct{} {
@ -57,6 +62,21 @@ func TestKeyLock_Progress(t *testing.T) {
 	unlock1()
 }

+func TestKeyLock_NoBusyWait(t *testing.T) {
+	defer goleak.VerifyNone(t)
+	l := keylock.New()
+
+	_, unlock0 := l.LockKeys([]string{"a", "b"}, nil)
+	defer unlock0()
+
+	go func() {
+		_, unlock := l.LockKeys([]string{"b", "c"}, nil)
+		unlock()
+	}()
+
+	testtool.VerifyNoBusyGoroutines(t)
+}
+
 func TestKeyLock_DeadlockFree(t *testing.T) {
 	const N = 10000

@ -116,7 +136,7 @@ func TestKeyLock_SingleKeyStress(t *testing.T) {
 		go func() {
 			defer wg.Done()

-			for i := 0; i < N; i++ {
+			for j := 0; j < N; j++ {
 				cancelled, unlock := l.LockKeys([]string{"a"}, timeout(time.Millisecond))
 				if !cancelled {
 					unlock()
@ -127,3 +147,58 @@ func TestKeyLock_SingleKeyStress(t *testing.T) {

 	wg.Wait()
 }
+
+func TestKeyLock_MutualExclusionStress(t *testing.T) {
+	const (
+		N = 1000
+		G = 100
+		M = 15
+		K = 3
+	)
+
+	defer goleak.VerifyNone(t)
+
+	locked := map[string]bool{}
+	var mu sync.Mutex
+
+	l := keylock.New()
+
+	var wg sync.WaitGroup
+	wg.Add(G)
+
+	for i := 0; i < G; i++ {
+		go func() {
+			defer wg.Done()
+
+			for j := 0; j < N; j++ {
+				keys := []string{}
+				for k := 0; k < K; k++ {
+					keys = append(keys, fmt.Sprint(rand.Intn(N)))
+				}
+
+				slices.Sort(keys)
+				keys = slices.Compact(keys)
+
+				_, unlock := l.LockKeys(keys, nil)
+				mu.Lock()
+				for _, key := range keys {
+					assert.False(t, locked[key])
+					locked[key] = true
+				}
+				mu.Unlock()
+
+				time.Sleep(time.Millisecond)
+
+				mu.Lock()
+				for _, key := range keys {
+					locked[key] = false
+				}
+				mu.Unlock()
+
+				unlock()
+			}
+		}()
+	}
+
+	wg.Wait()
+}
--- a/keylock/speed_test.go
+++ b/keylock/speed_test.go
@ -3,23 +3,9 @@ package keylock
 import (
 	"math/rand"
 	"strconv"
-	"sync"
 	"testing"
 )

-func BenchmarkMutex_Baseline(b *testing.B) {
-	var mu sync.Mutex
-
-	b.ReportAllocs()
-	b.RunParallel(func(pb *testing.PB) {
-		for pb.Next() {
-			mu.Lock()
-			_ = 0
-			mu.Unlock()
-		}
-	})
-}
-
 func BenchmarkKeyLock_SingleKey(b *testing.B) {
 	l := New()

--- a/lectures/00-intro/fetchall/fetchall.go
+++ b/lectures/00-intro/fetchall/fetchall.go
@ -3,7 +3,6 @@ package main
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"os"
 	"time"
@ -30,7 +29,7 @@ func fetch(url string, ch chan<- string) {
 	}
 	defer resp.Body.Close() // don't leak resources

-	nbytes, err := io.Copy(ioutil.Discard, resp.Body)
+	nbytes, err := io.Copy(io.Discard, resp.Body)
 	if err != nil {
 		ch <- fmt.Sprintf("while reading %s: %v", url, err)
 		return
--- a/lectures/00-intro/lecture.slide
+++ b/lectures/00-intro/lecture.slide
@ -11,8 +11,7 @@

 * Ссылки

-.link https://wiki.yandex.ru/shad/groups/2018/Semester4/GoLang/ Вики страница
-.link https://gitlab.com/manytask/itmo-go/public Репозиторий
+.link https://github.com/slon/shad-go Репозиторий
 .link https://t.me/joinchat/BjrYSxdPJGtJdd1pae08Zg Чат курса в телеграме
 [[https://p.go.manytask.org]] - эти слайды.

@ -21,7 +20,7 @@
 - 12+ занятий
 - Семинарские задания после каждой лекции. *Дедлайн*10*дней.*
 - 4 _больших_ домашних задания. *Дедлайн*3*недели.*
- Критерий оценки: *TODO*.
+- Критерий оценки: *В*LMS* (>N домашек и >X% за семинары).

 * Hello world

@ -37,12 +36,25 @@ Systems

 Language

+* История
+
+- 2009 go public announcement
+- 2012 go 1.0
+- 2008 github launch
+- 2011 C++11
+- 2011 pip initial release
+- 2010 npm first release
+- 2009 nodejs first release
+- 2008 python3
+- 2006 rust project started
+- 2015 rust 1.0
+
 * Современный мир

 - Море библиотек. Большие деревья зависимостей.
 : Нам нужен язык, который будет помогать контролировать сложность at large.
 - Архитектура построена вокруг сервисов, которые общаются по сети.
-: Скорее вам придётся писать stateless сервис. Statefull сервисы общаются с базой данных по сети.
+: Скорее вам придётся писать stateless сервис. Stateful сервисы общаются с базой данных по сети.
 - Многоядерные процессоры даже в телефонах.

 * Скорость разработки
@ -149,6 +161,8 @@ Language
    var s = ""
    var s string = ""

+.link https://go.dev/blog/declaration-syntax Почему тип пишется после названия переменной
+
 * uniq

 .play -edit uniq/uniq.go
@ -230,7 +244,7 @@ Pointers

  var s string
  p := &s
-  s2 = *p
+  s2 := *p

  var p Point
  p.X = 1
--- a/lectures/00-intro/urlfetch/urlfetch.go
+++ b/lectures/00-intro/urlfetch/urlfetch.go
@ -2,7 +2,7 @@ package main

 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"os"
 )
@ -14,7 +14,7 @@ func main() {
 			fmt.Fprintf(os.Stderr, "fetch: %v\n", err)
 			os.Exit(1)
 		}
-		b, err := ioutil.ReadAll(resp.Body)
+		b, err := io.ReadAll(resp.Body)
 		resp.Body.Close()
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "fetch: reading %s: %v\n", url, err)
--- a/lectures/01-basics/github/github.go
+++ b/lectures/01-basics/github/github.go
@ -3,6 +3,7 @@ package github
 import (
 	"encoding/json"
 	"fmt"
+	"io"
 	"net/http"
 	"net/url"
 	"strings"
@ -22,6 +23,10 @@ func SearchIssues(terms []string) (*IssuesSearchResult, error) {
 	defer resp.Body.Close()

 	if resp.StatusCode != http.StatusOK {
+		// The default HTTP client's Transport may not
+		// reuse HTTP/1.x "keep-alive" TCP connections if the Body is
+		// not read to completion and closed.
+		io.Copy(io.Discard, resp.Body)
 		return nil, fmt.Errorf("search query failed: %s", resp.Status)
 	}

--- a/lectures/01-basics/lecture.slide
+++ b/lectures/01-basics/lecture.slide
@ -21,14 +21,14 @@

 Типы

-  int int8 int16 int32 int64
+  any comparable int int8 int16 int32 int64
  uint uint8 uint16 uint32 uint64 uintptr
  float32 float64 complex128 complex64
  bool byte rune string error

 Функции

-  make len cap new append copy close delete
+  min max make len cap new append clear copy close delete
  complex real imag
  panic recover

@ -105,7 +105,7 @@

 * new

-`new(T)` создаёт новую переменную с типом `T`.
+`new(T)` создаёт новую переменную с типом `*T`.

  func newInt() *int {
      return new(int)
@ -126,6 +126,9 @@
  q := new(struct{})
  fmt.Println(p == q) // "true" or "false", depending on implementation

+  a := [1_000_000_000]struct{}{}
+  fmt.Println(unsafe.Sizeof(a)) // 0
+
 * variable lifetime

 Память освобождается, после того как переменая становится недостижимой.
@ -146,12 +149,18 @@
      *y = 1
  }

+.link https://habr.com/ru/companies/oleg-bunin/articles/676332/ Алгоритм для определения стек или куча для переменной
+
 * type declaration

  type name underlying-type

 .play tempconv0/conv.go

+- type alias
+
+  type name = another-type
+
 * packages

 - Файл `tempconv/types.go`
@ -170,9 +179,11 @@

 * package initialization

-  var a = b + c // a initialized third, to 3
-  var b = f()   // b initialized second, to 2, by calling f
-  var c = 1     // c initialized first, to 1
+  var (
+      a = b + c // a initialized third, to 3
+      b = f()   // b initialized second, to 2, by calling f
+      c = 1     // c initialized first, to 1
+  )

  func f() int { return c + 1 }

@ -295,7 +306,7 @@

 * bytes.Buffer

-  func intsToString(values []int) string {
+  func intsToBytes(values []int) []byte {
      var buf bytes.Buffer
      buf.WriteByte('[')
      for i, v := range values {
@ -305,7 +316,7 @@
          fmt.Fprintf(&buf, "%d", v)
      }
      buf.WriteByte(']')
-      return buf.String()
+      return buf.Bytes()
  }

 * constants
@ -375,6 +386,13 @@
  s := make([]int, 10)
  s = s[:0]
  s = s[:10]
+  s = s[:5:5]
+  s = s[:10] // panic
+
+- make эквивалентен следующему коду
+
+  a := [10]int{}
+  s := a[:]

 * slices

@ -388,11 +406,11 @@
 * slices

  var a, b []string
-  fmt.Println(a == b)
+  // a == nil && b == nil
+  fmt.Println(a == b) // invalid operation: a == b (slice can only be compared to nil)

  var c []int
  d := []int{}
-  fmt.Println(c != d)

  // c == nil && d != nil
  // len(c) == 0 && len(d) == 0
@ -411,6 +429,8 @@
  var a, b []int
  a = append(a, b...)

+  sCopy := append([]int(nil), s...) // use slices.Clone instead
+
 * stack

  stack = append(stack, v) // push v
@ -419,6 +439,17 @@

  stack = stack[:len(stack)-1] // pop

+* queue
+
+  queue = append(queue, v) // push v
+
+  front := queue[0] // front of queue
+
+  queue = queue[1:] // pop
+
+- O(1) амортизированное время всех операций
+- Не очень эффективно по числу аллокаций
+
 * copy

  func remove(slice []int, i int) []int {
@ -451,6 +482,8 @@
  ages["bob"]++
  _ = &ages["bob"] // compile error: cannot take address of map element

+  clear(ages)
+
 * maps

  for name, age := range ages {
--- a/lectures/02-interfaces/interfaces/embed.go
+++ b/lectures/02-interfaces/interfaces/embed.go
@ -0,0 +1,21 @@
+package sort
+
+type Interface interface {
+	Len() int
+	Less(i, j int) bool
+	Swap(i, j int)
+}
+
+func Reverse(data Interface) Interface {
+	return &reverse{data}
+}
+
+type reverse struct {
+	// This embedded Interface permits Reverse to use the methods of
+	// another Interface implementation.
+	Interface
+}
+
+func (r reverse) Less(i, j int) bool {
+	return r.Interface.Less(j, i)
+}
--- a/lectures/02-interfaces/lecture.slide
+++ b/lectures/02-interfaces/lecture.slide
@ -162,10 +162,10 @@ Methods

 Сетеры/гетеры для простых типов не приветствуются.

-  type Point { x, y int }
+  type Point struct { x, y int }

-  func (p *Point) X() int { return x }
-  func (p *Point) Y() int { return y }
+  func (p *Point) X() int { return p.x }
+  func (p *Point) Y() int { return p.y }
  func (p *Point) SetX(x int) { p.x = x }
  func (p *Point) SetY(y int) { p.y = y }

@ -244,6 +244,12 @@ Methods
      Closer
  }

+* Interface embedding in struct
+
+.play interfaces/embed.go
+
+.link https://pkg.go.dev/github.com/go-chi/chi/v5/middleware#WrapResponseWriter Daily-life example
+
 * Interface satisfaction

  var w io.Writer
--- a/Show more
+++ b/Show more