tartrazine/.github/workflows/sync-linguist.yml

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name: Sync Linguist
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on:
workflow_dispatch:
inputs:
linguist_tag:
description: 'Linguist tag override'
required: False
default: ''
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schedule:
# Run once a day to check for new Linguist updates automatically
- cron: '0 20 * * *'
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jobs:
sync-linguist:
runs-on: ubuntu-latest
steps:
- uses: actions/setup-go@v2
- uses: actions/checkout@v2
- name: Find previous Linguist commit
id: previous_linguist
run: |
set -euo pipefail
IFS=$'\n\t'
commit=$(sed --quiet --regexp-extended 's/[[:space:]]+commit[[:space:]]+=[[:space:]]"([a-f0-9]{40})"/\1/p' internal/code-generator/generator/generator_test.go)
echo "::set-output name=commit::$commit"
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echo "::set-output name=short_commit::${commit::8}"
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- uses: actions/checkout@v2
with:
repository: github/linguist
path: .linguist
fetch-depth: 0
- name: check out latest release
id: linguist-release
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# the `grep -v "-"` is to exclude any pre-release versions.
# Linguist doesn't have any right now, but just in case.
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run: |
set -euo pipefail
IFS=$'\n\t'
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cd .linguist
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if [[ -n "${{ github.event.inputs.linguist_tag }}" ]]; then
echo "Using tag override '${{ github.event.inputs.linguist_tag }}'"
latest="${{ github.event.inputs.linguist_tag }}"
else
latest=$(git tag --list | \
grep -v "-" | \
sort --version-sort --reverse | \
head -1)
fi
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if [[ -z "$latest" ]]; then
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echo "could not determine latest Linguist version"
exit 1
fi
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echo "::set-output name=linguist_version::$latest"
git checkout $latest
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commit=$(git rev-parse HEAD)
if [[ -z "$commit" ]]; then
echo "could not determine latest Linguist commit"
exit 1
fi
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echo "::set-output name=commit::$commit"
echo "::set-output name=short_commit::${commit::8}"
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cd ..
- name: Update Linguist information
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run: |
set -euo pipefail
IFS=$'\n\t'
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sed --in-place --regexp-extended 's/(commit[[:space:]]+=[[:space:]])("[a-f0-9]{40}")/\1"${{ steps.linguist-release.outputs.commit }}"/' internal/code-generator/generator/generator_test.go
sed --in-place --regexp-extended 's/version \*\*v.+\*\*\./version \*\*${{ steps.linguist-release.outputs.linguist_version }}\*\*\./' README.md
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- name: Generate code
run: make code-generate
- name: Commit changes
id: commit
run: |
set -euo pipefail
IFS=$'\n\t'
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echo "git current state:"
git status
branch_name="feature/sync-linguist-${{ steps.previous_linguist.outputs.short_commit }}"
if git rev-parse --quiet --verify $branch_name; then
echo "Linguist update branch $branch_name already exists"
echo "::set-output name=needs_pr::true"
exit 0
fi
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if [[ -n "$(git status --porcelain)" ]]; then
echo "Creating branch $branch_name for PR"
git checkout -b $branch_name
echo "::set-output name=branch_name::$branch_name"
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echo "Creating Linguist update commit"
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git config user.name github-actions
git config user.email github-actions@github.com
git add .
git commit -m "Updated Linguist to ${{ steps.linguist-release.outputs.linguist_version }}"
git push --set-upstream origin $branch_name
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echo "Changes committed. Will create PR."
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echo "::set-output name=needs_pr::true"
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exit 0
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fi
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echo "Linguist update unnecessary"
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echo "::set-output name=needs_pr::false"
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- name: Create Pull Request
id: open-pr
uses: repo-sync/pull-request@v2
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if: ${{ steps.commit.outputs.needs_pr == 'true' }}
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with:
source_branch: ${{ steps.commit.outputs.branch_name }}
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pr_title: "Update Linguist to ${{ steps.linguist-release.outputs.linguist_version }}"
pr_body: |
Automated Linguist update :robot:
This PR updates Linguist from [${{ steps.previous_linguist.outputs.short_commit }}](https://github.com/github/linguist/commit/${{ steps.previous_linguist.outputs.commit }}) to [${{ steps.linguist-release.outputs.linguist_version }}](https://github.com/github/linguist/releases/tag/${{ steps.linguist-release.outputs.linguist_version }}) ([${{ steps.linguist-release.outputs.short_commit }}](https://github.com/github/linguist/commit/${{ steps.linguist-release.outputs.commit }}))
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* [Linguist release notes](https://github.com/github/linguist/releases/tag/${{ steps.linguist-release.outputs.linguist_version }})
* [Compare Linguist code changes](https://github.com/github/linguist/compare/${{ steps.previous_linguist.outputs.commit }}...${{ steps.linguist-release.outputs.linguist_version }})
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destination_branch: "master"
github_token: ${{ secrets.GITHUB_TOKEN }}
- name: output-url
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if: ${{ steps.commit.outputs.needs_pr == 'true' }}
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run: echo ${{ steps.open-pr.outputs.pr_url }}
- name: No PR Created
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if: ${{ steps.commit.needs_pr != 'true' }}
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run: echo "No changes for ${{ steps.linguist-release.outputs.linguist_version }}"