add: GitHub Action commenting a summary on PR

.github/workflows/shasum-summary.yml

@@ -0,0 +1,38 @@
+name: comment a SHASUM summary for each changed release
+
+on:
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  comment-summary:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: ${{ github.event.pull_request.commits }} 
+      - name: show changed files
+        run: git diff --no-commit-id --name-only ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }}
+      - name: run shasum-summary
+        run: python3 contrib/shasum-summary/main.py ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }} > comment
+      - name: show comment
+        run: cat comment
+      - uses: actions/github-script@v7
+        with:
+          script: |
+            const fs = require('node:fs');
+            fs.readFile('comment', 'utf8', (err, comment) => {
+              if (err) {
+                console.error(err);
+                return;
+              }
+              if (comment.length > 0) {
+                github.rest.issues.createComment({
+                  issue_number: context.issue.number,
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  body: "${{ github.event.pull_request.head.sha }}\n\n" + comment
+                });
+              }
+            });

contrib/touched-files-check/src/main.rs

@@ -57,7 +57,7 @@ fn check(touched_files: &str) -> Result<(Vec<&str>, HashSet<&str>), String> {
             (l.next().unwrap(), l.next().unwrap())
         };
         println!("Touched file: {status} {file}");
-        if ["README.md", ".cirrus.yml", "contrib/"]
+        if ["README.md", ".cirrus.yml", "contrib/", ".github/"]
             .iter()
             .any(|ignore| file.starts_with(ignore))
         {