Only comment once

Author: sveitser

.github/workflows/build-without-lockfile.yml

@@ -40,26 +40,45 @@ jobs:
 
       - name: Comment on PR
         uses: actions/github-script@v7
-        if: failure()
+        if: failure() && github.event_name == 'pull_request'
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}
-          script: |
-            github.rest.issues.createComment({
-              issue_number: context.issue.number,
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              body: `Unable to build without Cargo.lock file.
+        script: |
+          const issue_number = context.issue.number;
+          const owner = context.repo.owner;
+          const repo = context.repo.repo;
 
-              This means that after this change 3rd party projects may have
-              difficulties using crates in this repo as a dependency. If this
-              isn't easy to fix please open an issue so we can fix it later.
+          const commentBody = `Unable to build without Cargo.lock file.
 
-              To reproduce locally run
+          This means that after this change 3rd party projects may have
+          difficulties using crates in this repo as a dependency. If this
+          isn't easy to fix please open an issue so we can fix it later.
 
-              \`\`\`
-              cargo generate-lockfile
-              cargo check --all-targets
-              \`\`\`
+          To reproduce locally run
 
-              This PR can still be merged.`
-            })
+          \`\`\`
+          cargo generate-lockfile
+          cargo check --all-targets
+          \`\`\`
+
+          This PR can still be merged.`;
+
+          // Fetch existing comments
+          const { data: comments } = await github.rest.issues.listComments({
+            owner,
+            repo,
+            issue_number,
+          });
+
+          // Find existing comment
+          const existingComment = comments.find(c => c.body == commentBody);
+          if (!existingComment) {
+            await github.rest.issues.createComment({
+              owner,
+              repo,
+              issue_number,
+              body: commentBody
+            });
+          } else {
+             console.log("Already commentted.")
+          }