Here at Google we have quite a few remote file systems which contain various tools we use in our day-to-day work. As typing sucks we generally want the tools in our $PATH. When you try to tab complete Bash needs to stat a couple of thousand files and even on fast remote file systems this takes a drastically long time.
I wrote FastComplete as a solution to this problem. The tool creates a local cache of links on your hard drive to everything in your $PATH. It uses a couple of tricks to make sure all the stats remain locally, while still allowing the remote file to change without needing to update the cache. Linux should also keep this information in memory disk cache making tab completion almost instant again. Yay!
You can find FastComplete at https://github.com/mithro/rcfiles/blob/master/bin/fastcomplete It is a stand alone python program which shouldn’t have any non-core dependencies. The usage documentation is as follows;
Fast complete creates a local disk cache of your path.
It’s specifically designed to make bash tab complete run much faster. The correct fix would be to add caching to bash, but it was to hard to do so.To find out what path fastcomplete is currently using:
To get fastcomplete to rebuild it’s cache:
To use fastcomplete all the time add the following as the *LAST* line in your ~/.bashrc file. Fastcomplete will echo some output to stderr so you can see what is happening.
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