Escape `.` in regex #60

	name: Version Bump Check

	on:
	pull_request:

	env:
	description: version update
	file: main.go
	regex: \s+packageVersion\s+=\s+"\S+"

	jobs:
	main:
	runs-on: ubuntu-latest
	steps:
	- name: Check Out Code
	uses: actions/checkout@v4
	with:
	fetch-depth: -1

	- id: changes
	name: Check for Changes
	run: \|
	changed_file="$(git diff ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }} ${{ env.file }})"

	if [ -z "$changed_file" ]; then
	exit 1
	else
	added_match=$(echo "$changed_file" \| grep -E '^\+${{ env.regex }}' \|\| true)
	removed_match=$(echo "$changed_file" \| grep -E '^\-${{ env.regex }}' \|\| true)

	if [[ -z "$added_match" ]] && [[ -z "$removed_match" ]]; then
	exit 1
	fi

	if [[ -n "$added_match" ]]; then
	echo "added_match=$added_match" >> $GITHUB_OUTPUT
	else
	echo "added_match=" >> $GITHUB_OUTPUT
	fi

	if [[ -n "$removed_match" ]]; then
	echo "removed_match=$removed_match" >> $GITHUB_OUTPUT
	else
	echo "removed_match=" >> $GITHUB_OUTPUT
	fi
	fi

	- if: success()
	name: Found Change Comment
	uses: thollander/actions-comment-pull-request@v2
	with:
	comment_tag: changes
	message: \|
	:white_check_mark: Found ${{ env.description }} in `${{ env.file }}`:

	```diff
	${{ steps.changes.outputs.removed_match }}
	${{ steps.changes.outputs.added_match }}
	```

	- if: failure()
	name: Missing Change Comment
	uses: thollander/actions-comment-pull-request@v2
	with:
	comment_tag: changes
	message: \|
	:warning: Could not find ${{ env.description }} in `${{ env.file }}`

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