如何用atlassian-python-api获取Bitbucket PR的代码变更行数？

atlassian-python-api确实没有直接封装获取PR代码变更行数的函数，但可以通过调用Bitbucket REST API的底层端点来实现，下面是两种可行方案：

方案一：利用Diffstat端点直接获取统计数据 #

Bitbucket的REST API提供了diffstat端点，返回每个文件的增减行数统计，无需手动解析完整diff，效率更高：

from atlassian import Bitbucket

# 初始化Bitbucket客户端
bitbucket = Bitbucket(
    url="https://your-bitbucket-instance-url",
    username="your-username",
    password="your-app-password"  # 或个人访问令牌
)

def get_pr_loc_changes(project_key, repo_slug, pr_id):
    # 构造diffstat API路径
    diffstat_endpoint = f"/rest/api/1.0/projects/{project_key}/repos/{repo_slug}/pull-requests/{pr_id}/diffstat"
    # 调用API获取统计数据
    diffstat_data = bitbucket.get(diffstat_endpoint)
    
    total_added = 0
    total_removed = 0
    # 累加所有文件的行数变更
    for file_stat in diffstat_data:
        total_added += file_stat.get("linesAdded", 0)
        total_removed += file_stat.get("linesRemoved", 0)
    
    # 返回统计结果，可根据需求调整字段
    return {
        "lines_added": total_added,
        "lines_removed": total_removed,
        "total_loc_changed": total_added + total_removed
    }

# 示例调用
project_key = "PROJ"
repo_slug = "my-repo"
pr_id = 123
loc_stats = get_pr_loc_changes(project_key, repo_slug, pr_id)
# 更新你的自定义PullRequest对象
# custom_pr.loc_changed = loc_stats["total_loc_changed"]

方案二：获取完整Diff并手动解析行数 #

如果需要更精细的控制（比如排除特定文件），可以获取PR的完整diff文本，再逐行解析增减行数：

def calculate_loc_from_diff(project_key, repo_slug, pr_id):
    diff_endpoint = f"/rest/api/1.0/projects/{project_key}/repos/{repo_slug}/pull-requests/{pr_id}/diff"
    # 请求纯文本格式的diff内容
    diff_content = bitbucket.get(diff_endpoint, headers={"Accept": "text/plain"})
    
    added_lines = 0
    removed_lines = 0
    for line in diff_content.splitlines():
        # 排除diff头部的文件标识行（+++/---开头）
        if line.startswith("+") and not line.startswith("+++"):
            added_lines += 1
        elif line.startswith("-") and not line.startswith("---"):
            removed_lines += 1
    
    return {
        "lines_added": added_lines,
        "lines_removed": removed_lines,
        "total_loc_changed": added_lines + removed_lines
    }

说明 #

atlassian-python-api的核心优势是封装了常用操作，但对于这类细分需求，直接调用Bitbucket原生API端点是最灵活的方式。库提供的get()方法可以直接访问任意API路径，只需按照Bitbucket API文档构造正确的端点即可。

内容的提问来源于stack exchange，提问作者Bisrat