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'use strict';

const Git = require("nodegit");

const fs = require('fs');

const cnst = require('./constant');

const common = require('./common');

/**

* This example creates a certain file `newfile.txt`, adds it to the git

* index and commits it to head. Similar to a `git add newfile.txt`

* followed by a `git commit`

**/

let repo;

let index;

let oid;

// api 说明

/*

Repository.open : 打开本地仓库

Repository.createCommit : 创建commit

Index.write : 将Index.addByPath的内容写进Index

Index.writeTree : 配置Index.write一起使用, 将文件写入到tree(git概念)里面

*/

Git.Repository.open(cnst.test_git_path)

.then((repoResult) => (repo = repoResult))

.then(() => {

return fs.writeFileSync(

cnst.add_commit_filename,

'add & commit file content new_again 2'

);

})

.then(() => repo.refreshIndex())

.then((indexResult) => (index = indexResult))

.then(() => index.addByPath(cnst.add_commit_filename))

.then(() => index.write())

.then(() => index.writeTree())

// 注释以下行可以调试只add而不commit的情况

.then((oidResult) => {

oid = oidResult;

return Git.Reference.nameToId(repo, 'HEAD');

})

.then((head) => repo.getCommit(head))

.then((parent) => {

let commit_msg = 'commit msg from add & commit';

return repo.createCommit(

'HEAD',

common.get_commiter_sign(cnst),

common.get_commiter_sign(cnst),

commit_msg,

oid,

[parent]

);

})

.done((commitId) => {

repo.free();

console.log('New Commit: ', commitId);

});