Nodegit - 如何暂存和提交文件？ （简单的例子！）

Question

使用Node-git我只想：

1. 打开一个仓库（文件已被写入/更新）
2. 暂存文件
3. 提交

使用git cli我会写这样的东西

cd repo    
git add file.js
git commit -m "Added file.js"

我试图按照示例here描述如何使用nodegit进行操作，但很难按照这些代码行进行操作：

.then(function() {
  return repo.refreshIndex();
})
.then(function(indexResult) {
  index = indexResult;
})
.then(function() {
  // this file is in the root of the directory and doesn't need a full path
  return index.addByPath(fileName);
})
.then(function() {
  // this file is in a subdirectory and can use a relative path
  return index.addByPath(path.join(directoryName, fileName));
})
.then(function() {
  // this will write both files to the index
  return index.write();
})
.then(function() {
  return index.writeTree();
})
.then(function(oidResult) {
  oid = oidResult;
  return nodegit.Reference.nameToId(repo, "HEAD");
})
.then(function(head) {
  return repo.getCommit(head);
})
.then(function(parent) {
  var author = nodegit.Signature.create("Scott Chacon",
    "schacon@gmail.com", 123456789, 60);
  var committer = nodegit.Signature.create("Scott A Chacon",
    "scott@github.com", 987654321, 90);

  return repo.createCommit("HEAD", author, committer, "message", oid, [parent]);
})
.done(function(commitId) {
  console.log("New Commit: ", commitId);
});

它必须这么久吗？ repo.refreshIndex（），index.write（），index.writeTree（）等有什么作用？ API-docs不是那么初学者友好。

感谢启蒙！

Answer 1

这是我第一次使用此库，但我还是想回答。如果您放弃await的承诺，遵循流程就容易得多。我对发生的事情有基本的了解。

  const repo = await git.Repository.open(localNotesDir);
  const index = await repo.refreshIndex(); // read latest
  const files = await repo.getStatus(); // get status of all files
  files.forEach(file => index.addByPath(file.path())); // stage each file
  await index.write(); // flush changes to index
  const changes = await index.writeTree(); // get reference to a set of changes
  const head = await git.Reference.nameToId(repo, "HEAD"); // get reference to the current state
  const parent = await repo.getCommit(head); // get the commit for current state
  const author = git.Signature.now("Scott Chacon", "schacon@gmail.com"); // build auth/committer
  const committer = git.Signature.now("Scott A Chacon", "scott@github.com");
  // combine all info into commit and return hash
  const commitId = await repo.createCommit("HEAD", author, committer, "message", changes, [parent]);
  console.log('commitId', commitId);
  // changes and head are each oids. Read about them here:
  // https://hackage.haskell.org/package/gitlib-0.6.5/docs/Data-Git-Oid.html

Answer 2

即使我正在为自己的用例探索nodegit。显然，我认为您可以在这里找到解决问题的方法。 https://github.com/nodegit/nodegit/tree/master/examples