Steel Overseer
==============
> 
>
> The world is already run by all manner of machines. One day, they'll remind us of that fact.
>
> -Sargis Haz, artificer
[](https://travis-ci.org/schell/steeloverseer)
It is
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A development tool that runs commands when certain files are updated, added or
deleted.
Steeloverseer watches files whose names match a regular expression and then
runs a series of commands when those files are updated.
Specifically
------------
A filesystem event occurs when a file is added, deleted or updated.
If this event happens on a file that matches one of the patterns provided with
the `-p PATTERN` flag then steeloverseer will run the commands provided
with the `-c COMMAND` flag. These commands will be performed in serial until
one hangs, fails or all exit successfully.
You can provide multiple patterns and multiple commands, ie:
sos -c "git status" -c "echo hi world" -p "hs" -p "md"
You can seperately specify the directory to run in with `-d DIRECTORY`. The
default is `.`.
This will execute `git status` followed by `echo hi world`
whenever files matching "hs" or "md" are changed. `-d DIRECTORY`
is not provided above, so it's assumed to be `./`.
Also, since `-p PATTERN` are regular expressions we can do the same as above with:
sos -c "git status" -c "echo hi world" -p "hs|md"
Of course this would run whenever any match on "hs|md" is found,
for instance on the filepath `/Users/home/mdman/file.txt`.
For extensions it may make sense to use the endline matcher:
sos -c "git status" -c "echo hi world" -p "hs$|md$"
Installation
------------
Using cabal, `cabal install steeloverseer`.
Usage
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sos: Usage: sos [v] -c command -p pattern
-v --version show version info
-c COMMAND --command=COMMAND add command to run on file event
-p PATTERN --pattern=PATTERN add pattern to match on file path
-d DIRECTORY --directory=DIRECTORY set directory to watch for changes (default is ./)
Future
------
Project `.sosrc` file for specifying multiple sos commands while working on a project (@see issue #4)
[Art above by Chris Rahn for Wizards of the Coast](http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=205036 "Steel Overseer")