Merge pull request #34 from DiamondLightSource/match_by_filepath_and_… #12

	name: Auto Tag with SemVer

	on:
	push:
	branches:
	- main
	workflow_dispatch:
	jobs:
	tag-main:
	runs-on: ubuntu-latest
	permissions:
	contents: write

	steps:
	- name: Checkout code
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Fetch all tags
	run: git fetch --tags --force

	- name: Get latest semver tag
	id: get_latest_tag
	run: \|
	# Get all tags and filter for valid semver tags (vX.Y.Z format)
	LATEST_TAG=$(git tag -l '[0-9].[0-9].[0-9]*' \| sort -V \| tail -n 1)

	# If no valid semver tags exist, start with 0.0.0
	if [ -z "$LATEST_TAG" ]; then
	echo "::error::No semantic versioning tags found in the repository. Please create an initial tag (e.g., 0.0.0) manually."
	exit 1
	fi

	echo "latest_tag=$LATEST_TAG" >> $GITHUB_OUTPUT

	# Extract the version numbers
	VERSION=${LATEST_TAG}
	MAJOR=$(echo $VERSION \| cut -d. -f1)
	MINOR=$(echo $VERSION \| cut -d. -f2)
	PATCH=$(echo $VERSION \| cut -d. -f3)

	# Increment patch version
	NEW_PATCH=$((PATCH + 1))
	NEW_VERSION="$MAJOR.$MINOR.$NEW_PATCH"

	echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT

	- name: Create new tag
	id: create_tag
	run: \|
	NEW_TAG="${{ steps.get_latest_tag.outputs.new_version }}"
	echo "new_tag=$NEW_TAG" >> $GITHUB_OUTPUT

	git config --local user.email "action@github.com"
	git config --local user.name "GitHub Action"
	git tag -a $NEW_TAG -m "Auto-incremented patch version"

	- name: Push tag
	run: \|
	git push origin ${{ steps.create_tag.outputs.new_tag }}
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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