52 lines
1.6 KiB
YAML
52 lines
1.6 KiB
YAML
name: Commit checker
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on:
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pull_request:
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jobs:
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commit-checker:
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name: Commit checker
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runs-on: ubuntu-latest
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steps:
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- name: Checkout
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uses: actions/checkout@v2
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with:
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fetch-depth: 4
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- name: Get pull-request commits
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run: |
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set -x
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# actions/checkout did a merge checkout of the pull-request. As such, the first
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# commit is the merge commit. This means that on HEAD^ is the base branch, and
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# on HEAD^2 are the commits from the pull-request. We now check if those trees
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# have a common parent. If not, we fetch a few more commits till we do. In result,
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# the log between HEAD^ and HEAD^2 will be the commits in the pull-request.
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DEPTH=4
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while [ -z "$(git merge-base HEAD^ HEAD^2)" ]; do
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# Prevent infinite recursion
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if [ ${DEPTH} -gt 256 ]; then
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echo "No common parent between '${GITHUB_HEAD_REF}' and '${GITHUB_BASE_REF}'." >&2
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exit 1
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fi
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git -c protocol.version=2 fetch --no-tags --prune --progress --no-recurse-submodules --deepen=${DEPTH} origin HEAD
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DEPTH=$(( ${DEPTH} * 4 ))
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done
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# Just to show which commits we are going to evaluate.
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git log --oneline HEAD^..HEAD^2
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- name: Checkout commit-checker
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uses: actions/checkout@v2
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with:
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repository: OpenTTD/OpenTTD-git-hooks
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path: git-hooks
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ref: master
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- name: Check commits
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run: |
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set -x
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HOOKS_DIR=./git-hooks/hooks GIT_DIR=.git ./git-hooks/hooks/check-commits.sh HEAD^..HEAD^2
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echo "Commit checks passed"
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