ci(check-ci-skip): fix commitMessagesMetadata.forEach is not a function

Primary Changes
----------------
1. Changed the method in getting the commit
message from GitHub API to shell command to avoid
the rate limits in calling the API.
2. Same goes for the author of commit message,
we use shell command to fetch the username.

Fixes hyperledger-cacti#3614

Signed-off-by: bado <[email protected]>

.github/workflows/ci.yaml

@@ -36,7 +36,7 @@ jobs:
     steps:
       - uses: actions/[email protected]
       - name: Check CI Skip
-        run: node tools/ci-skip-for-maintainers.js ${{ github.event.pull_request.url }} ${{ github.event.pull_request.user.login }}
+        run: node tools/ci-skip-for-maintainers.js ${{ github.event.pull_request.user.login }}
 
   check-coverage:
     needs: check-ci-skip

tools/ci-skip-for-maintainers.js

@@ -1,9 +1,9 @@
 import { readFileSync } from "fs";
+import { execSync } from "child_process";
 
-//A new tag exclusively for MAINTAINERS that allows skipping the CI check
+// Constants
 const SKIP_CACTI = "skip-cacti-ci";
 const MaintainersFile = "MAINTAINERS.md";
-//regular expression to get the maintainers in MAINTAINERS.md
 const NAMES_REGEX = /\|\s*([A-Za-z\s]+)\s*/;
 const LINKS_REGEX = /\|\s*\[([^\]]+)\]\[[^\]]+\]\s*/;
 const TAGS_REGEX = /\|\s*([A-Za-z0-9_-]+|-)*\s*/;
@@ -12,90 +12,82 @@ const MAINTAINERS_REGEX = new RegExp(
   "g",
 );
 
-const main = async () => {
-  const markdownContent = readFileSync(MaintainersFile, "utf-8");
+const getMaintainersFileContent = () => readFileSync(MaintainersFile, "utf-8");
 
-  const args = process.argv.slice(2);
-  const pullReqUrl = args[0];
-  const committerLogin = args[1];
+// Function to get the latest commit message author
+const getCommitterLogin = () => {
+  const authorBuffer = execSync("git log -1 | grep Author | cut -d' ' -f2");
+  const authorString = authorBuffer.toString();
+  const authorStringTrim = authorString.trim();
+  return authorStringTrim;
+};
 
-  //Uncomment these lines and change it for local machine testing purposes:
-  //const pullReqUrl = "https://api.github.com/repos/<username>/cactus/pulls/<number>";
-  //const committerLogin = "<username>";
+// Function to get the latest commit message
+const getLatestCommitMessage = () => {
+  const commitMsgBuffer = execSync("git log -1 --pretty=%B");
+  const commitMsgString = commitMsgBuffer.toString();
+  const commitMsgTrim = commitMsgString.trim();
+  return commitMsgTrim;
+};
 
-  const fetchJsonFromUrl = async (url) => {
-    const fetchResponse = await fetch(url);
-    return fetchResponse.json();
-  };
+// Function to check if SKIP_CACTI tag is in the commit message
+const checkSkipCI = (commitMessage) => {
+  if (commitMessage.includes(SKIP_CACTI)) {
+    console.log("Skip requested in commit message.");
+    return true;
+  }
+  console.log("No skip request found.");
+  return false;
+};
 
-  let commitMessageList = [];
-  const commitMessagesMetadata = await fetchJsonFromUrl(
-    pullReqUrl + "/commits",
+// Function to extract maintainers from the MAINTAINERS.md file content
+const extractMaintainers = (maintainerMetaData) => {
+  let match;
+  const maintainers = [];
+  while ((match = MAINTAINERS_REGEX.exec(maintainerMetaData)) !== null) {
+    const github = match[2];
+    maintainers.push(github);
+  }
+  return maintainers;
+};
+
+// Function to check if committer is an active maintainer
+const checkCommitterIsMaintainer = (committerLogin, activeMaintainers) => {
+  if (activeMaintainers.includes(committerLogin)) {
+    console.log("The author of this PR is an active maintainer.");
+    return true;
+  }
+  console.log(
+    "CI will not be skipped. \nThe author of this PR is not an active maintainer.\nPlease refer to https://github.com/hyperledger/cacti/blob/main/MAINTAINERS.md for the list of active maintainers.",
   );
+  return false;
+};
 
-  commitMessagesMetadata.forEach((commitMessageMetadata) => {
-    // get commit message body
-    commitMessageList.push(commitMessageMetadata["commit"]["message"]);
-  });
+// Main function to determine whether to skip CI or proceed
+const main = async () => {
+  const markdownContent = getMaintainersFileContent();
+  const committerLogin = getCommitterLogin();
+  const commitMessage = getLatestCommitMessage();
 
-  // Check if skip-ci is found in commit message
-  const checkSkipCI = () => {
-    for (let commitMessageListIndex in commitMessageList) {
-      let commitMessage = commitMessageList[commitMessageListIndex];
-      if (commitMessage.includes(SKIP_CACTI)) {
-        console.log("Skip requested in commit message.");
-        return true;
-      } else {
-        console.log("No skip request found.");
-      }
-      return false;
-    }
-  };
+  const shouldSkipCI = checkSkipCI(commitMessage);
+  if (!shouldSkipCI) {
+    console.log("No skip requested. Proceeding with CI.");
+    process.exit(0);
+  }
 
-  // Function to extract active maintainers
-  const extractMaintainers = (maintainerMetaData) => {
-    let match;
-    const maintainers = [];
-    while ((match = MAINTAINERS_REGEX.exec(maintainerMetaData)) !== null) {
-      const github = match[2];
-      maintainers.push(github);
-    }
-    return maintainers;
-  };
-  // Get the maintainers
   const activeMaintainers = extractMaintainers(markdownContent);
-  activeMaintainers.forEach((maintainers) => {
-    maintainers;
-  });
-
-  // Check if committer is a trusted maintainer
-  const checkCommitterIsMaintainer = () => {
-    if (activeMaintainers.includes(committerLogin)) {
-      console.log("The author of this PR is an active maintainer.");
-      return true;
-    } else {
-      console.log(
-        "CI will not be skipped. \nThe author of this PR is not an active maintainer.\nPlease refer to https://github.com/hyperledger/cacti/blob/main/MAINTAINERS.md for the list of active maintainers.",
-      );
-      return false;
-    }
-  };
-
-  // Main logic
-
-  const shouldSkipCI = checkSkipCI();
+  const isMaintainer = checkCommitterIsMaintainer(
+    committerLogin,
+    activeMaintainers,
+  );
 
-  if (shouldSkipCI) {
-    const isMaintainer = checkCommitterIsMaintainer();
-    if (isMaintainer) {
-      console.log(
-        "Exit with an error code so as to pause the dependent workflows. CI skipped as per request.",
-      );
-      process.exit(1); // Exit successfully to skip CI
-    }
+  if (isMaintainer) {
+    console.log(
+      "CI skipped as per request. Exit with an error to PAUSE dependent workflows.",
+    );
+    process.exit(1);
   } else {
-    console.log("No skip requested. Proceeding with CI.");
-    process.exit(0); // Exit successfully to run CI
+    process.exit(0);
   }
 };