1 files changed, 40 insertions, 0 deletions
diff --git a/extra/rebase-pr.js b/extra/rebase-pr.js
new file mode 100644
index 0000000..4921d2e
--- /dev/null
+++ b/extra/rebase-pr.js
@@ -0,0 +1,40 @@
+const { execSync } = require("child_process");
+
+/**
+ * Rebase a PR onto such as 1.23.X or master
+ * @returns {Promise<void>}
+ */
+async function main() {
+    const branch = process.argv[2];
+
+    // Use gh to get current branch's pr id
+    let currentBranchPRID = execSync("gh pr view --json number --jq \".number\"").toString().trim();
+    console.log("Pr ID: ", currentBranchPRID);
+
+    // Use gh commend to get pr commits
+    const prCommits = JSON.parse(execSync(`gh pr view ${currentBranchPRID} --json commits`).toString().trim()).commits;
+
+    console.log("Found commits: ", prCommits.length);
+
+    // Sort the commits by authoredDate
+    prCommits.sort((a, b) => {
+        return new Date(a.authoredDate) - new Date(b.authoredDate);
+    });
+
+    // Get the oldest commit id
+    const oldestCommitID = prCommits[0].oid;
+    console.log("Oldest commit id of this pr:", oldestCommitID);
+
+    // Get the latest commit id of the target branch
+    const latestCommitID = execSync(`git rev-parse origin/${branch}`).toString().trim();
+    console.log("Latest commit id of " + branch + ":", latestCommitID);
+
+    // Get the original parent commit id of the oldest commit
+    const originalParentCommitID = execSync(`git log --pretty=%P -n 1 "${oldestCommitID}"`).toString().trim();
+    console.log("Original parent commit id of the oldest commit:", originalParentCommitID);
+
+    // Rebase the pr onto the target branch
+    execSync(`git rebase --onto ${latestCommitID} ${originalParentCommitID}`);
+}
+
+main();