Bash scripts fails on Windows but work on WSL

[mrvonwyl]

🔧 Summary

It looks like that bash scripts cannot be run with lefthook in a Windows environment.
The same config and script work fin in WSL and also with a js script and node.
But on Windows, there is a bash error: No such file or directory.
This is possibly due to a character escape issue.

I actually do not know if this should even be possible, but due to the nature of the error I think it should be, since node runs, but has a wrong path to the script.

Lefthook version

1.4.11

Steps to reproduce

1. Checkout https://github.com/mrvonwyl/lefthook-playground
2. Run npm i (which should also install the git hooks)
3. Run npx lefthook -v run prepare-commit-msg

Expected results

The console should print "hello from bash".

Actual results

The console prints an error instead:
RUNNING HOOK: prepare-commit-msg
⠙ waiting: bash.sh/bin/bash: F:Devplaygroundlefthook.lefthookprepare-commit-msgbash.sh: No such file or directory
-> note the missing folder delimiters (/ or )

Possible Solution

Logs / Screenshots

PS F:\Dev\playground\lefthook> npx lefthook -v run prepare-commit-msg
[lefthook] cmd: [git rev-parse --show-toplevel]
[lefthook] err: <nil>
[lefthook] out: F:/Dev/playground/lefthook

[lefthook] cmd: [git rev-parse --git-path hooks]
[lefthook] err: <nil>
[lefthook] out: .git/hooks

[lefthook] cmd: [git rev-parse --git-path info]
[lefthook] err: <nil>
[lefthook] out: .git/info

[lefthook] cmd: [git rev-parse --git-dir]
[lefthook] err: <nil>
[lefthook] out: .git

Lefthook v1.4.11
RUNNING HOOK: prepare-commit-msg
/bin/bash: F:Devplaygroundlefthook.lefthookprepare-commit-msgbash.sh: No such file or directory

  EXECUTE > bash.sh

            127
  EXECUTE > node.js
hello from node?


SUMMARY: (done in 0.20 seconds)
✔️  node.js
🥊  bash.sh

[mrexox]

Thank you for this catch! I will take a look at this issue this week.

[mrexox]

BTW, could you remove the runner option from the config for bash.sh? It must call the script directly. Does the error persist then?

[mrvonwyl]

I changed the config like so (is this what you meant be removing the runner?):

prepare-commit-msg:
  scripts:
    "bash.sh":
    "node.js":
      runner: node

This results in the following error:

EXECUTE > bash.sh

            \Dev\playground\lefthook\.lefthook\prepare-commit-msg\bash.sh: %1 is not a valid Win32 application.

This is probably caused due to windows not containing bash!?

Note: I ran this on a different PC. I will check again later.
Update: I changed the path in the error to match the original issue report.

[avudnez]

I second this, having the same error where bash seems to be called with a windows-style path containing no slash (neither forward nor backward), when called from powershell.
This is unfortunately a blocker for lefthook adoption.