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GitHub User: jacobat
Switching branches often makes the rake completion somewhat less usable. So I changed it up a bit to use the md5 sums of all the rake files instead of looking at timestamps:
if [[ -f Rakefile ]]; then
sum=`md5 -q Rakefile **/*.rake | md5`
if [[ ! -f .rake_tasks.$sum~ ]]; then
rake -s --tasks | cut -d ' ' -f 2 > .rake_tasks.$sum~
compadd $(cat .rake_tasks.$sum~)
This will leave a bunch of .rake_tasks.[...]~ files around so the fast completion will continue to work even when switching between branches that have different rake files.