From 64b96968ef2432a542defe5fa8b365c467d97ed0 Mon Sep 17 00:00:00 2001
From: Jonathan Stone <jstone@lucasfilm.com>
Date: Sun, 8 Sep 2024 19:39:43 -0700
Subject: [PATCH] Add release signing to GitHub CI (#2009)

This changelist adds a release signing workflow to the GitHub CI for MaterialX, leveraging https://github.com/sigstore/sigstore-python to sign each release and upload the resulting artifacts.
---
 .github/workflows/release.yml | 43 +++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 .github/workflows/release.yml

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000000..6ddb62f2b4
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,43 @@
+name: release
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: read
+  
+jobs:
+
+  release:
+    name: Release Signing
+    runs-on: ubuntu-latest
+    env:
+       RELEASE_TAG: ${{ github.ref_name }}
+    permissions:
+      contents: write
+      id-token: write
+      repository-projects: write
+       
+    steps:
+      - name: Sync Repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Create Archive Name
+        run: echo "MATERIALX_ARCHIVE=MaterialX-${RELEASE_TAG//v}" >> $GITHUB_ENV
+
+      - name: Generate Archives
+        run: |
+          git archive --prefix ${MATERIALX_ARCHIVE}/ --output ${MATERIALX_ARCHIVE}.zip ${RELEASE_TAG}
+          git archive --prefix ${MATERIALX_ARCHIVE}/ --output ${MATERIALX_ARCHIVE}.tar.gz ${RELEASE_TAG}
+
+      - name: Sign and Upload Archives
+        uses: sigstore/gh-action-sigstore-python@v3.0.0
+        with:
+          inputs: |
+            ${{ env.MATERIALX_ARCHIVE }}.zip
+            ${{ env.MATERIALX_ARCHIVE }}.tar.gz
+          upload-signing-artifacts: true
+          release-signing-artifacts: false