Action Detect Version

This is a GitHub Action to detect version name from updated directory name in Pull Request.

For example:

case 1
- inputs: dir=path/to/dir/
- updated files:
  - path/to/dir/v0.0.1/hoge
  - path/to/dir/v0.0.1/fuga
  - path/to/dir/v0.0.1/piyo
- then, outpus: new_version=v0.0.1
case 2
- inputs: dir=path/to/dir/
- updated files:
  - path/hoge
- then, Action is error occurs (msg: error: nothing updated)
case 3
- inputs: dir=path/to/dir/
- updated files:
  - path/to/dir/v0.0.1/hoge
  - path/to/dir/v0.0.1/fuga
  - path/to/dir/v0.0.2/hoge
- then, Action is error occurs (msg: error: updated multiple version)

Inputs

NAME	DESCRIPTION	TYPE
`dir`	specify base directory	`string`
`pr_url`	target PullRequest URL (fixed as `${{ github.event.pull_request.url }}`)	`string`

Outputs

NAME	DESCRIPTION	TYPE
`new_version`	updated directory name.	`string`

Example

if PullRequest labeled update-template, run bellow processes.
1. Detect template version: get directory name that updated files under the templates/
2. Get sentence of Release Note from Pull Request: get PullRequest body using actions-ecosystem/action-regex-match@v2
3. Push Tag: push tag of the directory name output on process 1
4. Create Release: create release from tag pushed process 3 & body output of process 2

name: Push a new tag & release with merged Pull Request

on:
  pull_request:
    types: [closed]

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: Detect template version
        uses: ShotaKitazawa/action-detect-version@main
        id: detect-version
        if: ${{ github.event.pull_request.merged == true && contains(github.event.pull_request.labels.*.name, 'update-template') }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          pr_url: ${{ github.event.pull_request.url }}
          dir: templates/

      - name: Get sentence of Release Note from Pull Request
        uses: actions-ecosystem/action-regex-match@v2
        id: regex-match
        if: ${{ steps.detect-version.outputs.new_version != null }}
        with:
          text: ${{ github.event.pull_request.body }}
          regex: '```release_note([\s\S]*)```'

      - name: Push Tag
        uses: actions-ecosystem/action-push-tag@v1
        id: push-tag
        if: ${{ steps.detect-version.outputs.new_version != null && steps.regex-match.outputs.match != '' }}
        with:
          tag: ${{ steps.detect-version.outputs.new_version }}

      - name: Create Release
        uses: actions/create-release@v1
        id: create-release
        if: ${{ steps.detect-version.outputs.new_version != null && steps.regex-match.outputs.match != '' }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ steps.detect-version.outputs.new_version }}
          release_name: ${{ steps.detect-version.outputs.new_version }}
          body: ${{ steps.regex-match.outputs.group1 }}
          draft: false
          prerelease: false