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@kerryb
Created Jan 11, 2010
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Ctags script
#!/usr/bin/ruby
#-*-ruby-*-
# A script to run ctags on all .rb files in a project. Can be run on
# the current dir, called from a git callback, or install itself as a
# git post-merge and post-commit callback.
CTAGS = '/usr/local/bin/ctags'
HOOKS = %w{ post-merge post-commit post-checkout }
HOOKS_DIR = '.git/hooks'
def install
if !File.writable?(HOOKS_DIR)
$stderr.print "The install option [-i] can only be used within a git repo; exiting.\n"
exit 1
end
HOOKS.each { |hook| install_hook("#{HOOKS_DIR}/#{hook}") }
end
def run_tags(dir)
if File.executable?(CTAGS) and File.writable?(dir)
%x{find #{dir} -name vendor -prune -o -name \\*.rb | #{CTAGS} -e -f #{dir}/TAGS -L - 2>>/dev/null}
else
$stderr.print "FAILED to write TAGS file to #{dir}\n"
end
end
def install_hook(hook)
if File.exists?(hook)
$stderr.print "A file already exists at #{hook}, and will NOT be replaced.\n"
return
end
print "Linking #{__FILE__} to #{hook}\n"
%x{ln -s #{__FILE__} #{hook}}
end
if ARGV.first == '-i'
install
else
# if GIT_DIR is set, we are being called from git
run_tags( ENV['GIT_DIR'] ? "#{ENV['GIT_DIR']}/.." : Dir.pwd )
end
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