execif

A very tiny and simple application to execute a command based on the existence of a file or directory.

Building from source

Depends on:

• Go (>= 1.2)
• Git
• Make
• Linux only

$ git clone https://github.com/asink/execif.git
$ cd execif
$ export GOPATH=$(pwd)/vendor
$ make
$ sudo make install

Usage

An example of running make in a directory that does not initially exist:

$ execif run /path/to/my/project make -C /path/to/my/project

First arg is the file or directory you're waiting on, the second arg and any args after that are the command that will be ran once that file or directory exists.

Why is this useful?

I had some other processes that are responsible for mounting certain files which don't initially exist. I needed to do something with sed files as soon as they became available, so I very quickly wrote this program to do so.

License

MIT