bash-preexec

This fork changes the default behaviour of bash-preexec - specifically the order of $PROMP_COMMAND. See below.

Background

This is a fork specifically to work around an issue occuring with direnv on Windows using git bash - it should not be used generally.

`bash-preexec.sh`

very slightly modified from the upstream version. The modification re-orders how the pre-command hooks get called. This is important because if direnv mangles our path, we need to correct the path as soon as possible, hence the change.

`direnv-fix.sh`

The path fix. You should review this before you hook it up to your system. Basically:

It tests before and after commands to determine if the $PATH is broken by running ls. You can configure your own test command in the script.
If it fails, we assume the $PATH is broken and:
- Cache the broken $PATH. The formatting is bad, but it still has the paths you want.
- Restore to a known good $PATH: /mingw64/bin:/usr/local/bin:/usr/bin:/bin:/mingw64/bin:/usr/bin
- Use sed to fix the formatting of the cached, broken $PATH.
- Restore the now correctly-formatted $PATH
This is all accomplished using an error trap.

Installation

Download the .direnv-fix and bash-preexec.sh script from this repository.
Place both scripts into your $HOME directory, or wherever you want.
Add the following to your .bashrc:
```
source "${HOME}/.direnv-fix.sh"
```

Open direnv-fix.sh and modify the following parameters:

# The path to: direnv
direnv_path="${HOME}/direnv"

# The path to: bash-preexec.sh
bash_preexec_path="${HOME}/bash-preexec.sh"

Restart your shell.

Pre-existing installations of bash-preexec

This repository changes the way that bash-preexec.sh updates the $PROMPT_COMMAND variable. In the original repository, the $PROMPT_COMMAND variable is prepended with the bash-preexec precmd functions. However, to work-around the direnv error, we need precmd to run after direnv. This change can be seen on line 310 of bash-preexec.sh.