Working with monorepo

start.sh

#!/usr/bin/env bash
set -euo pipefail

if [ $# -ne 1 ]; then
    echo "Usage: $0 <task-name>"
    exit 1
fi

TASK_NAME="$1"
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
TASK_DIR="$SCRIPT_DIR/../$TASK_NAME"

if [ -d "$TASK_DIR" ]; then
    echo "Error: directory '$TASK_DIR' already exists."
    exit 1
fi

echo "==> Updating template..."
"$SCRIPT_DIR/update.sh"

echo "==> Copying template to '$TASK_NAME'..."
cp -r "$SCRIPT_DIR" "$TASK_DIR"

echo "==> Checking out branch '$TASK_NAME' in all submodules..."

checkout_branch() {
    local path="$1"
    local branch="$2"
    git -C "$path" checkout -b "$branch"
}

cd "$TASK_DIR"
pids=()
for path in $(git submodule foreach --quiet 'echo $sm_path'); do
    checkout_branch "$path" "$TASK_NAME" &
    pids+=($!)
done

for pid in "${pids[@]}"; do
    wait "$pid"
done

echo "Done. Task directory: $TASK_DIR"