Add release workflow to distribute sdist via Release notes (#6332)

This should enable to distribute sdist with Release notes.

Tesing: https://github.com/atalman/triton/releases/tag/v3.0.0

Author: atalman

.github/workflows/create_release.yml

@@ -0,0 +1,76 @@
+name: Create Release
+
+on:
+  push:
+    branches:
+      - main
+      - release/*
+    tags:
+      # Final Release tags look like: v1.11.0
+      - v[0-9]+.[0-9]+.[0-9]+
+      # Release candidate tags look like: v1.11.0-rc1
+      - v[0-9]+.[0-9]+.[0-9]+-rc[0-9]+
+  release:
+    types: [published]
+  pull_request:
+    paths: [.github/workflows/create_release.yml]
+
+jobs:
+
+  release:
+    if: ${{ github.repository == 'triton-lang/triton' }}
+    name: Create Release
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    outputs:
+      release_name: "${{ steps.release_name.outputs.name }}"
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          show-progress: false
+          submodules: 'recursive'
+          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
+      - name: Fake name for PRs
+        if: ${{ github.event_name == 'pull_request' }}
+        run: echo "PT_GITHUB_REF=refs/tags/pr-tag" >> "$GITHUB_ENV"
+      - name: Real name for non-PRs
+        if: ${{ github.event_name != 'pull_request' }}
+        run: echo "PT_GITHUB_REF=$GITHUB_REF" >> "$GITHUB_ENV"
+      - name: Set filenames
+        run: |
+          tag_or_branch="${PT_GITHUB_REF#refs/tags/}"
+          tag_or_branch="${tag_or_branch#refs/heads/}"
+          # replace directory separators with _ in branch name
+          tag_or_branch="${tag_or_branch//\//_}"
+          echo "RELEASE_NAME=triton-$tag_or_branch" >> "$GITHUB_ENV"
+          echo "RELEASE_FILE=triton-$tag_or_branch.tar.gz" >> "$GITHUB_ENV"
+      - name: Create source distribution
+        run: |
+            # Create new folder with specified name so extracting the archive yields that
+            rm -rf "/tmp/$RELEASE_NAME"
+            cp -r "$PWD" "/tmp/$RELEASE_NAME"
+            mv "/tmp/$RELEASE_NAME" .
+            # Cleanup
+            find "$RELEASE_NAME" -name '.git*' -exec rm -rv {} \; || true
+            # Create archive
+            tar -czf "$RELEASE_FILE" "$RELEASE_NAME"
+            echo "Created source archive $RELEASE_FILE with content: $(ls -a "$RELEASE_NAME")"
+      - name: Upload source distribution for release
+        if: ${{ github.event_name == 'release' }}
+        uses: softprops/action-gh-release@v2
+        with:
+          files: ${{env.RELEASE_FILE}}
+      - name: Upload source distribution to GHA artifacts for release tags
+        if: ${{ github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v') && contains(github.ref, 'rc') }}
+        uses: actions/[email protected]
+        with:
+          name: ${{ env.RELEASE_FILE }}
+          path: ${{ env.RELEASE_FILE }}
+      - name: Set output
+        id: release_name
+        run: echo "name=release_name::${{ env.RELEASE_NAME }}.tar.gz" >> "${GITHUB_OUTPUT}"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}-${{ github.event_name }}
+  cancel-in-progress: true