Increment Build Steps
Put each of these steps under the steps: section described above.
Checkout repository and fetch the latest tags.
- name: Checkout Repository
uses: actions/checkout@v4
- name: Fetch Tags
run: git fetch --tags
Get the most recently created tag, or default to v0.0.0 if no tags exist.
- name: Determine Latest Tag
run: |
latestTag=$(git for-each-ref --sort=-creatordate --format '%(refname:short)' refs/tags 2>/dev/null | head -n 1 || echo "v0.0.0")
echo "Latest tag: $latestTag"
echo "latestTag=$latestTag" >> $GITHUB_ENV
Parse the most recently created tag into three components major.minor.patch.
- name: Parse Latest Tag
run: |
echo "major=$(echo ${{ env.latestTag }} | cut -d '.' -f1 | sed 's/v//')" >> $GITHUB_ENV
echo "minor=$(echo ${{ env.latestTag }} | cut -d '.' -f2)" >> $GITHUB_ENV
echo "patch=$(echo ${{ env.latestTag }} | cut -d '.' -f3 | sed 's/-dev\|-test//')" >> $GITHUB_ENV
Grabs only the line of the commit message that contains information about the tag to create.
- name: Get Information Line From Commit Message
run: |
commitMessage=$(git log -1 --pretty=%B | grep -E "^Type: (patch|major|minor)(, Branch: (dev|test))?$")
echo "commitMessage=$commitMessage" >> $GITHUB_ENV
Increment the tag version depending on what was passed into the first line of the commit. If a parent version is incremented, reset the child version (a major increment would reset both minor and patch to 0).
- name: Increment Version
run: |
if [[ "${{ env.commitMessage }}" =~ ^Type:\ patch ]]; then
echo "patch=$((${{ env.patch }} + 1))" >> $GITHUB_ENV
elif [[ "${{ env.commitMessage }}" =~ ^Type:\ minor ]]; then
echo "minor=$((${{ env.minor }} + 1))" >> $GITHUB_ENV
echo "patch=0" >> $GITHUB_ENV
elif [[ "${{ env.commitMessage }}" =~ ^Type:\ major ]]; then
echo "major=$((${{ env.major }} + 1))" >> $GITHUB_ENV
echo "minor=0" >> $GITHUB_ENV
echo "patch=0" >> $GITHUB_ENV
fi
Get the optional suffix for the new tag. If no Branch is specified in the commit, there will be no tag suffix and the tag will be treated as a production version.
- name: Get Tag Suffix
run: |
suffix=""
if [[ "${{ env.commitMessage }}" =~ Branch:\ dev$ ]]; then
suffix="dev"
elif [[ "${{ env.commitMessage }}" =~ Branch:\ test$ ]]; then
suffix="test"
fi
echo "suffix=$suffix" >> $GITHUB_ENV
Put all parts together to form the new tag that will be pushed. Composes the tag in the form v<major>.<minor>.<patch>[-dev|test].
- name: Compose New Tag
run: |
newTag=$(echo "v${{ env.major }}.${{ env.minor }}.${{ env.patch }}")
if [[ -n "${{ env.suffix }}" ]]; then
newTag="${newTag}-${{ env.suffix }}"
fi
echo "newTag=$newTag" >> $GITHUB_ENV
Push the tag to the repository.
- name: Push New Tag
run: |
git config user.name ${{ env.name }}
git config user.email ${{ env.email }}
git remote set-url origin https://@github.com/${{ env.user }}/${{ env.repo }}.git
git tag ${{ env.newTag }}
git push origin tag ${{ env.newTag }}