error: Error: spawnSync git ENOBUFS

[brunolemos]

Small reproduction:

1. Create an empty folder with only one file: package.json

   {
     "name": "rw",
     "dependencies": {
       "react-window": "1.8.5"
     }
   }

2. Make some changes inside node_modules/react-window/dist files

3. npx patch-package react-window

4. If fails with error below:

[17:05:40] brunolemos:rw $ patch-package react-window
patch-package 6.1.2
• Creating temporary folder
• Installing react-window@1.8.5 with yarn
• Diffing your files with clean files

{
  error: Error: spawnSync git ENOBUFS
      at Object.spawnSync (internal/child_process.js:1041:20)
      at Object.spawnSync (child_process.js:607:24)
      at Function.spawnSync [as sync] (/usr/local/lib/node_modules/patch-package/node_modules/cross-spawn/index.js:26:23)
      at Object.exports.spawnSafeSync (/usr/local/lib/node_modules/patch-package/dist/spawnSafe.js:10:32)
      at git (/usr/local/lib/node_modules/patch-package/dist/makePatch.js:73:32)
      at Object.makePatch (/usr/local/lib/node_modules/patch-package/dist/makePatch.js:104:26)
      at /usr/local/lib/node_modules/patch-package/dist/index.js:48:25
      at Array.forEach (<anonymous>)
      at Object.<anonymous> (/usr/local/lib/node_modules/patch-package/dist/index.js:47:22)
      at Module._compile (internal/modules/cjs/loader.js:868:30) {
    errno: 'ENOBUFS',
    code: 'ENOBUFS',
    syscall: 'spawnSync git',
    path: 'git',
    spawnargs: [
      'diff',
      '--cached',
      '--no-color',
      '--ignore-space-at-eol',
      '--no-ext-diff'
    ]
  },
  status: null,
  signal: 'SIGTERM',
  output: [
    null,
    <Buffer 64 69 66 66 20 2d 2d 67 69 74 20 61 2f 6e 6f 64 65 5f 6d 6f 64 75 6c 65 73 2f 72 65 61 63 74 2d 77 69 6e 64 6f 77 2f 64 69 73 74 2f 69 6e 64 65 78 2d ... 1056718 more bytes>,
    <Buffer >
  ],
  pid: 79859,
  stdout: <Buffer 64 69 66 66 20 2d 2d 67 69 74 20 61 2f 6e 6f 64 65 5f 6d 6f 64 75 6c 65 73 2f 72 65 61 63 74 2d 77 69 6e 64 6f 77 2f 64 69 73 74 2f 69 6e 64 65 78 2d ... 1056718 more bytes>,
  stderr: <Buffer >
}

/usr/local/lib/node_modules/patch-package/dist/makePatch.js:150
        throw e;
        ^
{
  error: Error: spawnSync git ENOBUFS
      at Object.spawnSync (internal/child_process.js:1041:20)
      at Object.spawnSync (child_process.js:607:24)
      at Function.spawnSync [as sync] (/usr/local/lib/node_modules/patch-package/node_modules/cross-spawn/index.js:26:23)
      at Object.exports.spawnSafeSync (/usr/local/lib/node_modules/patch-package/dist/spawnSafe.js:10:32)
      at git (/usr/local/lib/node_modules/patch-package/dist/makePatch.js:73:32)
      at Object.makePatch (/usr/local/lib/node_modules/patch-package/dist/makePatch.js:104:26)
      at /usr/local/lib/node_modules/patch-package/dist/index.js:48:25
      at Array.forEach (<anonymous>)
      at Object.<anonymous> (/usr/local/lib/node_modules/patch-package/dist/index.js:47:22)
      at Module._compile (internal/modules/cjs/loader.js:868:30) {
    errno: 'ENOBUFS',
    code: 'ENOBUFS',
    syscall: 'spawnSync git',
    path: 'git',
    spawnargs: [
      'diff',
      '--cached',
      '--no-color',
      '--ignore-space-at-eol',
      '--no-ext-diff'
    ]
  },
  status: null,
  signal: 'SIGTERM',
  output: [
    null,
    <Buffer 64 69 66 66 20 2d 2d 67 69 74 20 61 2f 6e 6f 64 65 5f 6d 6f 64 75 6c 65 73 2f 72 65 61 63 74 2d 77 69 6e 64 6f 77 2f 64 69 73 74 2f 69 6e 64 65 78 2d ... 1056718 more bytes>,
    <Buffer >
  ],
  pid: 79859,
  stdout: <Buffer 64 69 66 66 20 2d 2d 67 69 74 20 61 2f 6e 6f 64 65 5f 6d 6f 64 75 6c 65 73 2f 72 65 61 63 74 2d 77 69 6e 64 6f 77 2f 64 69 73 74 2f 69 6e 64 65 78 2d ... 1056718 more bytes>,
  stderr: <Buffer >
}
[17:05:44] brunolemos:rw $ 

[brunolemos]

This only happens when I was trying to patch the .js.map files as well. Maybe they are too big.

[pvinis]

I don't think this should be closed. It would be cool to have a way to ignore these files.

[ldco2016]

@brunolemos , why was this closed? I get the same error when I tried to patch react-native-immediate-phone-call@1.0.0

I ran npx patch-package react-native-immediate-phone-call and I got:

* Creating temporary folder
* Installing react-native-immediate-phone-call@1.0.0 with npm
* Diffing your files with clean files

{
  error: Error: spawnSync git ENOBUFS

[marcus-sa]

Happens to me as well, and the file being added only contains a few bytes.

[alepri51]

i've the same problem
any workaround?

[SudoPlz]

@alepri51 I temporarily worked around it and managed to create my patch by going to:

⁨node_modules⁩/patch-package⁩/dist⁩/makePatch.js line 108, specifically in this code:

return spawnSafe_1.spawnSafeSync("git", args, {
                cwd: tmpRepo.name,
                env: { HOME: tmpRepo.name },
            });

and added an extra option called maxBuffer to increase the buffer size to 100mb (it was 1 mb by default which is too low)

now the code looks like this:

return spawnSafe_1.spawnSafeSync("git", args, {
                cwd: tmpRepo.name,
                env: { HOME: tmpRepo.name },
                maxBuffer: 1024 * 1024 * 100
            });

and my patch was created successfully.
I hope that helps someone.

[curio77]

Thank you, this helped. So we now need to patch-package patch-package? ;-)

[SudoPlz]

Hahaha yep

[leejh3224]

This seems to be in a high priority

[brussee]

@alepri51 I temporarily worked around it and managed to create my patch by going to:

⁨node_modules⁩/patch-package⁩/dist⁩/makePatch.js line 108, specifically in this code:

return spawnSafe_1.spawnSafeSync("git", args, {
                cwd: tmpRepo.name,
                env: { HOME: tmpRepo.name },
            });

and added an extra option called maxBuffer to increase the buffer size to 100mb (it was 1 mb by default which is too low)

now the code looks like this:

return spawnSafe_1.spawnSafeSync("git", args, {
                cwd: tmpRepo.name,
                env: { HOME: tmpRepo.name },
                maxBuffer: 1024 * 1024 * 100
            });

and my patch was created successfully.
I hope that helps someone.

Here is a gist with the patch by @SudoPlz I'm using successfully:

https://gist.github.com/brussee/e382ed12ca007a88170289e54b526063

[Timebutt]

Can we get this fixed, possibly by upping the default maxBuffer or throwing a more clear error suggesting to up the maxBuffer when running the command?

I just ran into this too, and while it is incredibly meta to have to patch patch-package, it's not exactly the point ;)