Shell - 同步 Git remote 下面的所有分支到另外一個新的 remote

#!/bin/bash

#指定要列出的 remote 名稱
remote_name="old_origin"

# 指定要推送到的 remote 名稱
push_remote_name="origin"

# 用於存儲推送失敗的分支名稱
failed_branches=()

# 取得 repository 的指定 remote 的 branch
git branch -r | grep "$remote_name" | sed 's/^[[:space:]]*//' | while read branch; do

    # 檢查本地是否已經有這個分支，如果沒有就建立
    local_branch="${branch#*/}"

    echo "current branch: $local_branch"

    if ! git rev-parse --verify "$local_branch" >/dev/null 2>&1; then
        echo "Creating local branch: $local_branch"
        git checkout -b "$local_branch" "$branch"
    else
        echo "Checking out local branch: $local_branch"
        git checkout "$local_branch"
    fi

    # 推送到指定的 remote 上
    echo "Pushing branch: $local_branch to remote: $push_remote_name"

    if git push "$push_remote_name" "$local_branch"; then
        echo "Push successful"
    else
        echo "Push failed"
        failed_branches+=("$local_branch")
    fi
done

# 列出推送失敗的分支
if [ ${#failed_branches[@]} -gt 0 ]; then
    echo "The following branches failed to push:"
    for branch in "${failed_branches[@]}"; do
        echo "$branch"
    done
fi