Automated Releases to GitHub

.github/workflows/node-github-releases.yml

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+# .github/workflows/release.yml
+name: Auto Release
+
+on:
+  push:
+    branches:
+      - "main"
+    paths:
+      - 'package.json'
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+
+      - name: Check if version changed
+        id: version
+        run: |
+          # Get current version
+          CURRENT_VERSION=$(jq -r '.version' package.json)
+
+          # Get previous version
+          git show HEAD~1:package.json > /tmp/old-package.json 2>/dev/null || echo '{"version":"0.0.0"}' > /tmp/old-package.json
+          PREVIOUS_VERSION=$(jq -r '.version' /tmp/old-package.json)
+
+          echo "current=$CURRENT_VERSION" >> $GITHUB_OUTPUT
+          echo "previous=$PREVIOUS_VERSION" >> $GITHUB_OUTPUT
+
+          if [ "$CURRENT_VERSION" != "$PREVIOUS_VERSION" ]; then
+            echo "changed=true" >> $GITHUB_OUTPUT
+          else
+            echo "changed=false" >> $GITHUB_OUTPUT
+          fi
+
+          # Check if prerelease (contains hyphen)
+          if [[ "$CURRENT_VERSION" == *-* ]]; then
+            echo "prerelease=true" >> $GITHUB_OUTPUT
+          else
+            echo "prerelease=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Validate version increment
+        if: steps.version.outputs.changed == 'true'
+        run: |
+          CURRENT="${{ steps.version.outputs.current }}"
+          PREVIOUS="${{ steps.version.outputs.previous }}"
+
+          # Function to compare semver versions
+          version_compare() {
+            # Strip prerelease suffix for base comparison
+            local v1_base="${1%%-*}"
+            local v2_base="${2%%-*}"
+            local v1_pre="${1#*-}"
+            local v2_pre="${2#*-}"
+
+            # If no prerelease, set to empty
+            [[ "$v1_base" == "$1" ]] && v1_pre=""
+            [[ "$v2_base" == "$2" ]] && v2_pre=""
+
+            # Compare major.minor.patch
+            IFS='.' read -ra V1 <<< "$v1_base"
+            IFS='.' read -ra V2 <<< "$v2_base"
+
+            for i in 0 1 2; do
+              local n1="${V1[$i]:-0}"
+              local n2="${V2[$i]:-0}"
+              if (( n1 > n2 )); then
+                echo "greater"
+                return
+              elif (( n1 < n2 )); then
+                echo "lesser"
+                return
+              fi
+            done
+
+            # Base versions equal, compare prerelease
+            # No prerelease > prerelease (1.0.0 > 1.0.0-beta)
+            if [[ -z "$v1_pre" && -n "$v2_pre" ]]; then
+              echo "greater"
+            elif [[ -n "$v1_pre" && -z "$v2_pre" ]]; then
+              echo "lesser"
+            elif [[ "$v1_pre" > "$v2_pre" ]]; then
+              echo "greater"
+            elif [[ "$v1_pre" < "$v2_pre" ]]; then
+              echo "lesser"
+            else
+              echo "equal"
+            fi
+          }
+
+          RESULT=$(version_compare "$CURRENT" "$PREVIOUS")
+
+          if [[ "$RESULT" == "lesser" ]]; then
+            echo "::error::Version downgrade detected: $PREVIOUS → $CURRENT"
+            echo "Version must be incremented, not decremented."
+            exit 1
+          fi
+
+          echo "✓ Version increment valid: $PREVIOUS → $CURRENT"
+
+      - name: Create Release
+        if: steps.version.outputs.changed == 'true'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const version = '${{ steps.version.outputs.current }}';
+            const isPrerelease = ${{ steps.version.outputs.prerelease }};
+            const tagName = `v${version}`;
+
+            const release = await github.rest.repos.createRelease({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              tag_name: tagName,
+              name: tagName,
+              target_commitish: context.sha,
+              generate_release_notes: true,
+              prerelease: isPrerelease
+            });
+
+            console.log(`Created ${isPrerelease ? 'prerelease' : 'release'}: ${release.data.html_url}`);