ci: add script to sync labels on the repository

.github/update-labels.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+REPO_NAME="iggy-rs/setup-iggy"
+API_URL="https://api.github.com/repos/$REPO_NAME/labels"
+
+create_label() {
+  local name="$1"
+  local color="$2"
+  local description="$3"
+
+  curl -X POST -H "Authorization: token $GITHUB_TOKEN" -H "Accept: application/vnd.github.v3+json" \
+    -d '{"name": "'"$name"'", "color": "'"$color"'", "description": "'"$description"'"}' \
+    "$API_URL"
+}
+
+create_label "CI/CD" "93ecdb" "Pull requests bring CI/CD improvements."
+create_label "docs" "0075ca" "Improvements or additions to documentation."
+create_label "duplicate" "cfd3d7" "This issue or pull request already exists."
+create_label "maintenance" "ed4d86" "Maintenance work."
+create_label "semver:major" "8151c5" "Label for pull request that brings a major (BREAKING) change."
+create_label "semver:minor" "8af85b" "Label for pull request that brings a minor change."
+create_label "semver:patch" "fef2c0" "Label for pull request that brings a patch change."

.github/workflows/release.yml

@@ -41,6 +41,7 @@ jobs:
 
       - uses: actions/checkout@v4
         with:
+          fetch-depth: 1
           token: ${{ steps.app-token.outputs.token }}
           # Make sure the value of GITHUB_TOKEN will not be persisted in repo's config
           persist-credentials: false

.github/workflows/tag.yml

@@ -19,6 +19,7 @@ jobs:
 
       - uses: actions/checkout@v4
         with:
+          fetch-depth: 1
           token: ${{ steps.app-token.outputs.token }}
 
       - name: Update CHANGELOG

.github/workflows/update-labels.yml

@@ -0,0 +1,25 @@
+name: Update repository labels
+on:
+  pull_request:
+
+jobs:
+  checks:
+    name: Update labels
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+
+      - uses: actions/create-github-app-token@v1
+        id: app-token
+        with:
+          app-id: ${{ secrets.DEPLOY_APP_ID }}
+          private-key: ${{ secrets.DEPLOY_APP_KEY }}
+
+      - name: Call script
+        env:
+          GITHUB_TOKEN: ${{ steps.app-token.outputs.token }}
+        run: .github/update-labels.sh