Add a convenient script to create internal PRs

justfile

@@ -30,3 +30,6 @@ test-asan *args="//...":
 
 format:
   python3 tools/cross/format.py
+
+internal-pr:
+  ./tools/unix/create-internal-pr.sh

tools/unix/create-internal-pr.sh

@@ -0,0 +1,38 @@
+#!/bin/sh
+# This tool will open a PR to update workerd in Cloudflare's internal repository
+# to match the current branch.
+
+set -euo pipefail
+
+BRANCH_NAME=$(git rev-parse --abbrev-ref HEAD)
+SYNC_BRANCH_NAME=sync/$BRANCH_NAME
+
+cd ../edgeworker
+git fetch origin master
+
+if git rev-parse --verify $SYNC_BRANCH_NAME; then
+	BRANCH_EXISTS=1
+else 
+	BRANCH_EXISTS=0
+fi
+
+
+if [ $BRANCH_EXISTS -eq 1 ]; then
+	git checkout $SYNC_BRANCH_NAME
+else
+	git checkout master 
+	git checkout -b $SYNC_BRANCH_NAME
+fi
+
+git -C deps/workerd fetch origin $BRANCH_NAME
+git -C deps/workerd checkout origin/$BRANCH_NAME
+git add deps/workerd
+
+if [ $BRANCH_EXISTS -eq 1 ]; then
+	git commit --amend
+	git push --force origin HEAD
+else
+	git commit -m "Sync with $BRANCH_NAME"
+	git push origin HEAD 
+	open "https://bitbucket.cfdata.org/projects/EW/repos/edgeworker/pull-requests?create&sourceBranch=refs/heads/$SYNC_BRANCH_NAME"
+fi