add workflows of release target

Author: smdn

.github/release.yml

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+# SPDX-License-Identifier: MIT
+# SPDX-FileCopyrightText: "2022 smdn <smdn@smdn.jp>"
+
+# ref: https://docs.github.com/repositories/releasing-projects-on-github/automatically-generated-release-notes
+changelog:
+  exclude:
+    authors:
+      - smdn
+    labels:
+      - release-target

.github/workflows/generate-release-target.yml

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+# SPDX-License-Identifier: MIT
+# SPDX-FileCopyrightText: "2022 smdn <smdn@smdn.jp>"
+
+name: Generate release target
+
+on:
+  push:
+    tags: new-release/*/*
+
+  workflow_dispatch:
+    inputs:
+      release_target_tag_name:
+        description: "The tag name of release target."
+        required: true
+        type: string
+      dry_run:
+        description: "If true, performs a trial run."
+        required: false
+        type: boolean
+        default: false
+
+jobs:
+  determine-release-target:
+    runs-on: ubuntu-latest
+    outputs:
+      tag_name: ${{ steps.release-target.outputs.tag_name }}
+      dry_run: ${{ steps.release-target.outputs.dry_run }}
+    steps:
+    - name: Determine the release target tag
+      id: release-target
+      run: |
+        # If workflow is trigged by workflow_dispatch, the value of github.ref_name contains branch ref which workflow runs from.
+        # Due to the reason of above, github.event.inputs.release_target_tag_name must be tested before testing github.ref_name.
+        if [[ -n '${{ github.event.inputs.release_target_tag_name }}' ]]; then
+          # use dispatched tag name
+          echo '::set-output name=tag_name::${{ github.event.inputs.release_target_tag_name }}'
+
+          if [ '${{ github.event.inputs.dry_run }}' = 'true' ]; then
+            echo '::set-output name=dry_run::true'
+          else
+            echo '::set-output name=dry_run::false'
+          fi
+
+          exit 0
+        fi
+
+        if [[ -n '${{ github.ref_name }}' ]]; then
+          # use pushed tag name
+          echo '::set-output name=tag_name::${{ github.ref_name }}'
+          echo '::set-output name=dry_run::false'
+          exit 0
+        fi
+
+        echo "::error::release target tag could not be determined."
+        exit 1
+
+  run-generate-release-target:
+    uses: smdn/Smdn.Fundamentals/.github/workflows/generate-release-target.yml@workflows/release-target-v1.3.0
+    needs: determine-release-target
+    if: startsWith(needs.determine-release-target.outputs.tag_name, 'new-release/')
+    with:
+      release_target_tag_name: ${{ needs.determine-release-target.outputs.tag_name }}
+      release_target_tag_prefix: 'new-release/'
+      release_target_pr_label: 'release-target'
+      release_tag_prefix: 'releases/'
+      dry_run: ${{ fromJSON(needs.determine-release-target.outputs.dry_run) }}
+    secrets:
+      token_repo:         ${{ secrets.PUBLISH_NEW_RELEASE }}
+      token_pullrequest:  ${{ secrets.PUBLISH_NEW_RELEASE }}
+      token_gist:         ${{ secrets.PUBLISH_NEW_RELEASE }}

.github/workflows/publish-release-target.yml

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+# SPDX-License-Identifier: MIT
+# SPDX-FileCopyrightText: "2022 smdn <smdn@smdn.jp>"
+
+name: Publish release target
+
+on:
+  pull_request:
+    types: [closed]
+
+jobs:
+  run-publish-release-target:
+    uses: smdn/Smdn.Fundamentals/.github/workflows/publish-release-target.yml@workflows/release-target-v1.3.0
+    if: |
+      (github.event.pull_request.merged == true && startsWith(github.head_ref, 'releases/')) &&
+      (contains(github.event.pull_request.labels.*.name, 'release-target'))
+    with:
+      pr_number_request_for_release: ${{ github.event.pull_request.number }}
+      pr_label_request_for_release:  'release-target'
+    secrets:
+      token_repo:                 ${{ secrets.PUBLISH_NEW_RELEASE }}
+      token_push_nuget_org:       ${{ secrets.PUBLISH_PACKAGE_NUGETORG }}
+      token_push_github_packages: ${{ secrets.PUBLISH_NEW_RELEASE }}