checkout does not work with containers

Created on 4 Mar 2020 · 8Comments · Source: actions/checkout

Seems that using github action with a container results in .git being stripped

drwxr-xr-x 5 1001  115 4096 Mar  4 21:34 .
drwxr-xr-x 3 1001  115 4096 Mar  4 21:34 ..
drwxrwxr-x 3 root root 4096 Mar  4 21:34 .github
-rw-rw-r-- 1 root root  347 Mar  4 21:34 .gitignore
-rw-rw-r-- 1 root root  427 Mar  4 21:34 .gitpod.yml
-rw-rw-r-- 1 root root 3346 Mar  4 21:34 CODE_OF_CONDUCT.md
-rw-rw-r-- 1 root root  209 Mar  4 21:34 Cargo.toml
-rw-rw-r-- 1 root root 1077 Mar  4 21:34 LICENSE
-rw-rw-r-- 1 root root  328 Mar  4 21:34 README.md
-rw-rw-r-- 1 root root  182 Mar  4 21:34 build.rs
drwxrwxr-x 2 root root 4096 Mar  4 21:34 src
drwxrwxr-x 2 root root 4096 Mar  4 21:34 tools
fatal: not a git repository: '/__w/dockerfreeze/dockerfreeze/.git'
##[error]Process completed with exit code 128.

See: https://github.com/Kreyren/dockerfreeze/pull/1/checks?check_run_id=486094327

Expectation

Expecting a workflow with updated shellcheck to avoid https://github.com/koalaman/shellcheck/issues/1771 due to the old version of linting tool used on default image and process only changed files in the merge request if they are supported by specified linting tool.

name: Bash

# Relevant to events - https://help.github.com/en/actions/automating-your-workflow-with-github-actions/events-that-trigger-workflows
on: 
  pull_request:
    types: [synchronize, opened, reopened, ready_for_review]
    paths:
    - '**.bash'
    - "tools/dockerfreeze"

jobs:
  # Linting
  lint:
    runs-on: ubuntu-latest
    container: debian:latest
    steps:
      - uses: actions/checkout@v2
      - name: Installing dependencies..
        run: |
          # Sync repos
          apt update
          # Install git
          apt install -y git
          if ! apt list --installed 2>/dev/null | grep -q "git.*"; then
            apt install -y git
          elif apt list --installed 2>/dev/null | grep -q "git.*"; then
            true
          else
            exit 255
          fi 
          # Install shellcheck
          if ! apt list --installed 2>/dev/null | grep -q ".*shellcheck.*"; then
            apt install -y shellcheck
          elif apt list --installed 2>/dev/null | grep -q ".*shellcheck.*"; then
            true
          else
            exit 255
          fi 
      - name: Linting..
        shell: bash
        run: |
          cd "$GITHUB_WORKSPACE"

          ls -la
          # Process files
          ## NOTICE: Do not use for loop to avoid pitfall https://mywiki.wooledge.org/BashPitfalls#pf1
          git --git-dir="$GITHUB_WORKSPACE/.git" ls-files -z -- '*.bash' tools/dockerfreeze | while IFS= read -rd '' file; do
              printf 'linting bash file %s' "$file"
              shellcheck --external-sources --shell=bash "$file"
          done

Blocks https://github.com/gitpod-io/dockerfreeze/pull/54

Source