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Sometimes it is not possible to read the tree property with readObject after git clone.

See original GitHub issue

My mention:

Browser(Google Chrome v68)
isomorphic-git@0.35.1
IndexedDB

Because I can not use English much, I am using a translation machine.

Sometimes it is not possible to read the tree property with readObject after git clone.
I tried it with the following sample.

I opened the chrome developer tool and initialized with Application from Clear Storage.
After that, I ran init, created a directory and git cloned.
Finally, an error occurred when 10 tree objects were git logged and readObjected.

However, reloading the browser after git clone did not cause an error.

Is there any way to solve this problem?

sample html file

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="https://isomorphic-git.org/js/browserfs.js"></script>
  <script src="https://isomorphic-git.org/js/pify.js"></script>
  <script src="https://unpkg.com/isomorphic-git"></script>
</head>
<body>
<p>case1: clear site data → init → mkdir → clone1 → log (ng)</p>
<p>case2: case1 → reload browser → init → log (ok)</p>
<p>case3: clear site data → init → mkdir → clone1 → init → log (ng)</p>
<p>case4: case2 → fsGetRootFsEmpty → mkdir → clone2 → log (ng)</p>
<script>
function init (params) {
  let fsOptions = {
    fs: 'IndexedDB',
    options: {}
  }

  BrowserFS.configure(fsOptions, function (err) {
    if (err) return console.log(err)
    
    window.fs = BrowserFS.BFSRequire('fs')
    
    // Initialize isomorphic-git with our new file system
    git.plugins.set('fs', fs)
    
    // make a Promisified version for convenience
    window.pfs = pify(fs)
    console.log('finish initializing')
  })
}

async function clone (dir, url) {
  await git.clone({
    dir,
    corsProxy: 'https://cors.isomorphic-git.org',
    url: url
  })
  console.log('done')
}

async function log (dir) {
  let log = await git.log({
    dir,
    depth: 10
  })
  await readObject(dir, log)
}

async function readObject(dir, log) {
	for (const { oid, tree } of log) {
    let blobs = await git.readObject({
      dir,
      oid: tree,
    })
    console.log({ oid }, { tree }, blobs.object)
  }
}

async function mkdir (dir) {
  let res = await pfs.mkdir(dir)
  console.log('done')
}

async function readdir (dir) {
  let res = await pfs.readdir(dir)
  console.log(res)
}

async function fsGetRootFsEmpty() {
  await fs.getRootFS().empty()
  console.log('done')
}
</script>

<button onclick="init()">init</button>
<button onclick="clone('tutorial', 'https://github.com/tomatoaiu/vue-parcel-pack.git')">clone 1</button>
<button onclick="clone('tutorial', 'https://github.com/tomatoaiu/vue-vuex-counter.git')">clone 2</button>
<button onclick="log('tutorial')">log</button>
<button onclick="mkdir('tutorial')">mkdir</button>
<button onclick="readdir('tutorial')">readdir</button>
<button onclick="fsGetRootFsEmpty()">fsGetRootFsEmpty</button>
</body>
</html>

error

Uncaught (in promise) u: An internal error caused this command to fail. Please file a bug report at https://github.com/isomorphic-git/isomorphic-git/issues with this error message: GitTree: Error parsing buffer at byte location 0: Could not find the next space character.
    at https://unpkg.com/isomorphic-git@0.35.1/dist/bundle.umd.min.js:8:28437
    at new a (https://unpkg.com/isomorphic-git@0.35.1/dist/bundle.umd.min.js:8:28955)
    at Function.from (https://unpkg.com/isomorphic-git@0.35.1/dist/bundle.umd.min.js:8:29142)
    at Module.<anonymous> (https://unpkg.com/isomorphic-git@0.35.1/dist/bundle.umd.min.js:8:286250)
    at Generator.next (<anonymous>)
    at n (https://unpkg.com/isomorphic-git@0.35.1/dist/bundle.umd.min.js:8:285413)
    at https://unpkg.com/isomorphic-git@0.35.1/dist/bundle.umd.min.js:8:285507

Issue Analytics

State:
Created 5 years ago
Comments:7 (6 by maintainers)

Top GitHub Comments

1reaction

isomorphic-git-botcommented, Sep 8, 2018

🎉 This issue has been resolved in version 0.35.2 🎉

The release is available on:

Your semantic-release bot 📦🚀

1reaction

wmhiltoncommented, Sep 6, 2018

Thank you! I have heard about this problem before, but have never been able to reproduce this! This is very helpful.

I understand the problem now! I do not know the solution yet, but I will solve this problem.

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