parse.js

const simpleGit = require('simple-git');
const fs = require('fs');

// 本地 Git 仓库路径
const REPO_PATH = 'D:/Data/Godot/Polar'; 

const git = simpleGit(REPO_PATH);

async function getGitData() {
    console.log(`Analyzing repo at ${REPO_PATH}...`);

    // 1. 获取所有日志
    const log = await git.log({
        '--all': null,
        //'--date': 'iso',
        '--stat': null,
        'format': {
            'hash': '%H',
            'parents': '%P', 
            'author': '%an',
            'date': '%ai',
            'message': '%s'
        }
    });

    const commits = [];
    const commitMap = new Map(); 

    log.all.forEach(entry => {
        const { hash, parents, author, date, message, diff } = entry;
        const parentHashes = parents.split(' ').filter(p => p.length > 0);

        const commit = {
            id: hash, 
            hash: hash,
            parents: parentHashes,
            author: author,
            date: date,
            message: message,
            stats: {
                insertions: diff ? diff.insertions : 0,
                deletions: diff ? diff.deletions : 0,
                total_changes: diff ? (diff.insertions + diff.deletions) : 0
            }
        };
        commits.push(commit);
        commitMap.set(hash, commit);
    });

    const links = [];
    commits.forEach(commit => {
        commit.parents.forEach(parentHash => {
            if (commitMap.has(parentHash)) {
                links.push({
                    source: commit.id, 
                    target: parentHash 
                });
            }
        });
    });

    const branches = await git.branch(['--all']);
    const rawTagRefs = await git.raw(['show-ref', '--tags']);
    const tagRefs = rawTagRefs
        ? rawTagRefs.split('\n')
              .filter(line => line.length > 0)
              .map(line => {
                  const [hash, ref] = line.split(' ');
                  return { hash, ref };
              })
        : []; 

    const refs = {};
    
    branches.all.forEach(branchName => {
        const commitHash = branches.branches[branchName].commit;
        if (!refs[commitHash]) refs[commitHash] = [];
        
        const cleanName = branchName.replace(/^remotes\//, '');
        refs[commitHash].push(cleanName);
    });
    
    tagRefs.forEach(tag => {
        const commitHash = tag.hash;
        const tagName = tag.ref.replace('refs/tags/', ''); 
        
        if (!refs[commitHash]) refs[commitHash] = [];
        refs[commitHash].push(`tag: ${tagName}`);
    });

    const gitGraph = {
        nodes: commits, 
        links: links,   
        refs: refs      
    };

    fs.writeFileSync('./git-data.json', JSON.stringify(gitGraph, null, 2));
    console.log('Successfully created git-data.json!');
}

getGitData().catch(console.error);