[lit][ci] Enable testing Release Lit workflow in forks

.github/workflows/release-lit.yml

@@ -4,13 +4,16 @@ permissions:
   contents: read
 
 on:
-  workflow_dispatch:
-    inputs:
-      release-version:
-        description: 'Release Version'
-        required: true
-        type: string
-
+  push:
+    branches:
+      - main
+    paths:
+      - .github/workflows/release-lit.yml
+      - 'llvm/utils/lit/**'
+  pull_request:
+    paths:
+      - .github/workflows/release-lit.yml
+      - 'llvm/utils/lit/**'
   workflow_call:
     inputs:
       release-version:
@@ -21,9 +24,21 @@ on:
       RELEASE_TASKS_USER_TOKEN:
         description: "Secret used to check user permissions."
         required: false
+  workflow_dispatch:
+    inputs:
+      description_only:
+        description: Workflow dispatch only triggers a dry run, no upload to PyPI will occur.
+        type: string
+        default: 'Please read the description above.'
+        required: false
+      release-version:
+        description: 'Release Version'
+        required: true
+        type: string
 
 jobs:
   release-lit:
+    if: github.repository_owner == 'llvm' || github.event_name == 'workflow_dispatch'
     name: Release Lit
     runs-on: ubuntu-24.04
     steps:
@@ -38,6 +53,7 @@ jobs:
           sudo apt-get install -y python3-setuptools python3-psutil python3-github
 
       - name: Check Permissions
+        if: contains(github.workflow_ref, '/.github/workflows/release-tasks.yml') && github.event_name != 'workflow_dispatch'
         env:
           GITHUB_TOKEN: ${{ github.token }}
           USER_TOKEN: ${{ secrets.RELEASE_TASKS_USER_TOKEN }}
@@ -47,7 +63,7 @@ jobs:
       - name: Setup Cpp
         uses: aminya/setup-cpp@a276e6e3d1db9160db5edc458e99a30d3b109949 # v1.7.1
         with:
-          compiler: llvm-16.0.6
+          compiler: llvm-19.1.7
           cmake: true
           ninja: true
 
@@ -65,14 +81,22 @@ jobs:
           sed -i 's/ + "dev"//g' lit/__init__.py
           python3 setup.py sdist bdist_wheel
 
+      - name: Save lit package as an artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: lit-artifact
+          path: llvm/utils/lit/dist/
+
       - name: Upload lit to test.pypi.org
+        if: contains(github.workflow_ref, '/.github/workflows/release-tasks.yml') && github.event_name != 'workflow_dispatch'
         uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # v1.13.0
         with:
           password: ${{ secrets.LLVM_LIT_TEST_PYPI_API_TOKEN }}
           repository-url: https://test.pypi.org/legacy/
           packages-dir: llvm/utils/lit/dist/
 
       - name: Upload lit to pypi.org
+        if: contains(github.workflow_ref, '/.github/workflows/release-tasks.yml') && github.event_name != 'workflow_dispatch'
         uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # v1.13.0
         with:
           password: ${{ secrets.LLVM_LIT_PYPI_API_TOKEN }}