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@MattSeen
Forked from turadg/rake.sh
Last active Dec 29, 2015
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A bash script for allow tab completion of rake tasks.
# bash completion for rake
#
# some code from on Jonathan Palardy's http://technotales.wordpress.com/2009/09/18/rake-completion-cache/
# and http://pastie.org/217324 found http://ragonrails.com/post/38905212/rake-bash-completion-ftw
#
# For details and discussion
# http://turadg.aleahmad.net/2011/02/bash-completion-for-rake-tasks/
#
# INSTALL
#
# Place in your bash completions.d and/or source in your .bash_profile
# If on a Mac with Homebrew, try "brew install bash-completion"
#
# USAGE
#
# Type 'rake' and hit tab twice to get completions.
# To clear the cache, run rake_cache_clear() in your shell.
#
function _rake_cache_path() {
# If in a Rails app, put the cache in the cache dir
# so version control ignores it
if [ -e 'tmp/cache' ]; then
prefix='tmp/cache/'
fi
echo "${prefix}.rake_t_cache"
}
function rake_cache_store() {
rake --tasks --silent > "$(_rake_cache_path)"
}
function rake_cache_clear() {
rm -f .rake_t_cache
rm -f tmp/cache/.rake_t_cache
}
export COMP_WORDBREAKS=${COMP_WORDBREAKS//:}
function _rakecomplete() {
# error if no Rakefile
# don't know why code by @turadg doesn't work, Windows maybe?
if [ ! -e "rakefile.rb" ]; then
echo "missing Rakefile"
return 1
fi
# build cache if missing
if [ ! -e "$(_rake_cache_path)" ]; then
rake_cache_store
fi
local tasks=`awk '{print $2}' "$(_rake_cache_path)"`
# Bash autocomplete would mess up when a colon was contained
# in the task name. Interim solution I found on:
# Source: http://willcode4beer.com/tips.jsp?set=tabMaven
cur=${COMP_WORDS[COMP_CWORD]}
colonprefixes=${cur%"${cur##*:}"}
COMPREPLY=( $(compgen -W "${tasks}" -- $cur))
local i=${#COMPREPLY[*]}
while [ $((--i)) -ge 0 ]; do
COMPREPLY[$i]=${COMPREPLY[$i]#"$colonprefixes"}
done
return 0
}
complete -o default -o nospace -F _rakecomplete rake
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