Add workflow to automate FST regeneration and release creation

Signed-off-by: Keshav Priyadarshi <[email protected]>

Author: keshav-space

.github/workflows/sync-purls.yml

@@ -1,4 +1,4 @@
-name: Collect latest PURLs from FederatedCode
+name: Collect latest PURLs from FederatedCode and create release with latest FST
 
 on:
   workflow_dispatch:
@@ -11,7 +11,7 @@ permissions:
 jobs:
   collect-purls:
     strategy:
-      max-parallel: 4
+      max-parallel: 1
       matrix:
         include:
           - ecosystem: apk
@@ -31,3 +31,71 @@ jobs:
     with:
       ecosystem: ${{ matrix.ecosystem }}
       path: "fst_builder/data/${{ matrix.ecosystem }}.txt"
+
+  regen-fst-and-release:
+    name: Regenerate FST and create release using new FST
+    needs: collect-purls
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.GH_TAG_RELEASE_TOKEN }}
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Install cargo-edit
+        run: cargo install cargo-edit
+
+      - name: Regenerate FST
+        id: regen_fst
+        run: |-
+          git pull
+          make build-fst
+          git diff --name-only | grep -q 'purls.fst' && echo "changed=true" >> $GITHUB_OUTPUT \
+          || echo "changed=false" >> $GITHUB_OUTPUT
+
+          # Commit latest FST
+          git config user.name "AboutCode Automation"
+          git config user.email "[email protected]"
+          git add purls.fst
+          git commit -m "$(echo -e "Regenerate FST using latest PURLs\n\nSigned-off-by: AboutCode Automation <[email protected]>")" || exit 0
+          git push
+
+      - name: Bump minor version
+        id: bump
+        if: steps.regen_fst.outputs.changed == 'true'
+        run: |-
+          output=$(cargo set-version --bump minor 2>&1)
+          new_version=$(echo "$output" | awk '{print $NF}')
+
+          echo "new_version=$new_version" >> $GITHUB_OUTPUT
+
+      - name: Add Changelog
+        if: steps.regen_fst.outputs.changed == 'true'
+        run: |-
+          # Add Changelog
+          today=$(date +%Y-%m-%d)
+          awk -v ver="${{ steps.bump.outputs.new_version }}" -v date="$today" '
+          NR==1{
+            print "# Changelog\n\n## v" ver " (" date ")\n\n - Update FST with latest PURLs"
+            next
+          }1' CHANGELOG.md > .tmp.CHANGELOG.md && mv .tmp.CHANGELOG.md CHANGELOG.md
+
+      - name: Commit Changelog and Lock files
+        if: steps.regen_fst.outputs.changed == 'true'
+        run: |-
+          # Commit Changelog and Lock files
+          git config user.name "AboutCode Automation"
+          git config user.email "[email protected]"
+          git add -A
+          git commit -m "$(echo -e "Bump version for v${{ steps.bump.outputs.new_version }} release\n\nSigned-off-by: AboutCode Automation <[email protected]>")" || exit 0
+          git push
+
+      - name: Push tag
+        if: steps.regen_fst.outputs.changed == 'true'
+        run: |-
+          # Push tag
+          git tag -a "v${{ steps.bump.outputs.new_version }}" -m "Release v${{ steps.bump.outputs.new_version }}"
+          git push origin "v${{ steps.bump.outputs.new_version }}"