Added automatic labeler system (#2670)

* Create pull_request_opened.yml

Add Pull Request Labeler.

* Add Labeler configuratino

* Update labeler.yml

* Update pull_request_opened.yml

* Erm, skill Issue

* Added transpiler detection support.

* Create pull_request_reviewed.yml (#8)

This adds a `approved` label to PRs which have been approved by reviewers.

* bye bye

💥

* Update pull_request_opened.yml

* Update pull_request_opened.yml

---------

Co-authored-by: Nao <60253860+NaoUnderscore@users.noreply.github.com>

.github/labeler.yml

@@ -0,0 +1,41 @@
+Documentation:
+- changed-files:
+  - any-glob-to-any-file: docs/**
+
+NuGet:
+- changed-files:
+  - any-glob-to-any-file: '**/*.nuspec'
+
+Scripts: # Add the 'Scripts' label
+- changed-files:
+  - any-glob-to-any-file: '**/*.ps1' # Windows
+  - any-glob-to-any-file: '**/*.sh' # Linux
+
+regarding-events: # Add the 'Events' label
+- changed-files:
+  - any-glob-to-any-file: Exiled.Events/** # Any Modifications to events
+
+regarding-api: # Add the 'API' label
+- changed-files:
+  - any-glob-to-any-file: Exiled.API/** # Any modifications to the API
+
+regarding-transpiler: # Add the 'transpiler' label
+- changed-files:
+  - any-glob-to-any-file: Exiled.Events/Patches/**/* # Any modifications to transpiler files
+
+CustomModules: # Add the 'CustomModules' label
+- changed-files:
+  - any-glob-to-any-file: Exiled.CustomModules/** # Any modifications to CustomModules
+
+Installer: # Add the 'Installer' label
+- changed-files:
+  - any-glob-to-any-file: Exiled.Installer/** # Any modifications to the Installer
+
+Localization: # Add the 'Localization' label
+- changed-files:
+  - any-glob-to-any-file: Localization/** # Any modifications to Localization
+
+GitHub_Actions: # Add the 'GitHub' label
+- changed-files:
+  - any-glob-to-any-file: .github/** # Any modifications to github related files
+

.github/workflows/pull_request_opened.yml

@@ -0,0 +1,75 @@
+name: Pull Request Opened
+
+on:
+  pull_request:
+    types: 
+      - opened
+      - labeled
+      - unlabeled
+  workflow_dispatch:
+
+jobs:
+  set-labels:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Labeler
+      uses: actions/labeler@v5.0.0
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        configuration-path: .github/labeler.yml
+        sync-labels: true
+
+  update-pr-title:
+    runs-on: ubuntu-latest
+    needs: set-labels
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Get PR Info
+      id: get_pr
+      uses: octokit/request-action@v2.x
+      with:
+        route: GET /repos/${{ github.repository }}/pulls/${{ github.event.pull_request.number }}
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Update PR Title
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      run: |
+        PR_TITLE=$(jq -r '.title' <<<"${{ steps.get_pr.outputs.data }}")
+        PR_LABELS=$(jq -r '.labels | map(.name) | join(",")' <<<"${{ steps.get_pr.outputs.data }}")
+        PREFIX=""
+
+        if [[ "$PR_LABELS" == *"Documentation"* ]]; then
+          PREFIX="[Docs]"
+        elif [[ "$PR_LABELS" == *"NuGet"* ]]; then
+          PREFIX="[NuGet]"
+        elif [[ "$PR_LABELS" == *"Scripts"* ]]; then
+          PREFIX="[Scripts]"
+        elif [[ "$PR_LABELS" == *"regarding-events"* ]]; then
+          PREFIX="[Events]"
+        elif [[ "$PR_LABELS" == *"regarding-api"* ]]; then
+          PREFIX="[API]"
+        elif [[ "$PR_LABELS" == *"regarding-transpiler"* ]]; then
+          PREFIX="[Transpiler]"
+        elif [[ "$PR_LABELS" == *"CustomModules"* ]]; then
+          PREFIX="[CustomModules]"
+        elif [[ "$PR_LABELS" == *"Installer"* ]]; then
+          PREFIX="[Installer]"
+        elif [[ "$PR_LABELS" == *"Localization"* ]]; then
+          PREFIX="[Localization]"
+        elif [[ "$PR_LABELS" == *"GitHub_Actions"* ]]; then
+          PREFIX="[GitHub]"
+        fi
+
+        NEW_TITLE="$PREFIX $PR_TITLE"
+        
+        if [[ "$NEW_TITLE" != "$PR_TITLE" ]]; then
+          curl -X PATCH \
+            -H "Authorization: token $GITHUB_TOKEN" \
+            -H "Accept: application/vnd.github.v3+json" \
+            https://api.github.com/repos/${{ github.repository }}/pulls/${{ github.event.pull_request.number }} \
+            -d "{\"title\":\"$NEW_TITLE\"}"
+        fi