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April 11, 2025 22:43
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Continuous versioning: headver in GitHub Actions
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| name: Build | |
| on: | |
| push: | |
| branches: | |
| - main | |
| jobs: | |
| build: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - uses: actions/checkout@v4 | |
| with: | |
| # This is needed to enable computing the next tag | |
| fetch-depth: 0 | |
| - name: Version and tag | |
| id: version | |
| run: .github/headver.sh | |
| - name: Build and push image | |
| run: | | |
| docker build -t my/image:${{ env.VERSION }} . | |
| docker push my/image:${{ env.VERSION }} |
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| #!/bin/bash | |
| # Enable Bash strict mode | |
| set -euox pipefail | |
| # Continuous delivery versioning inspired by https://github.com/line/HeadVer | |
| # Format is <head>.YYYYMMDD.<build> | |
| # For hotfix, a branch should be created off the tag to hotfix as hotfix/<tag>, e.g. hotfix/1.20230821.1. | |
| # Hotfix tags will be versioned as <tag>-hotfix-<n>, where <n> is an incremental number starting from 1. | |
| head=1 | |
| function getNextNumber() { | |
| PATTERN=$1 | |
| latestTag=$(git tag -l ${PATTERN} | sort -V | tail -n 1) | |
| if [ -z "$latestTag" ]; then | |
| echo "1" | |
| else | |
| build=$(echo $latestTag | awk -F'[.-]' '{print $NF}') | |
| echo "$((build + 1))" | |
| fi | |
| } | |
| if [[ $(git symbolic-ref --short HEAD) == hotfix/* ]]; then | |
| suffix=$(git symbolic-ref --short HEAD | sed 's/^hotfix\///') | |
| n=$(getNextNumber "${suffix}-hotfix-*") | |
| version="${suffix}-hotfix-${n}" | |
| else | |
| ymd=$(date +"%Y%m%d") | |
| build=$(getNextNumber "${head}.${ymd}.*") | |
| version="${head}.${ymd}.${build}" | |
| fi | |
| echo "Tag: $version" | |
| git tag "$version" | |
| git push origin $version | |
| echo "VERSION=${version}" >> $GITHUB_ENV | |
| echo "version=${version}" >> $GITHUB_OUTPUT |
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Versioning system for continuous delivery, inspired by https://github.com/line/headver