comparison: bin/git-ctags
bin/git-ctags
- changeset 440
- aacbd4032a4c
- parent 187
- 84c6fa7ebc05
- child 441
- 650cbc95b9b0
equal
deleted
inserted
replaced
| 439:f1df55abb64a | 440:aacbd4032a4c |
|---|---|
| 1 #!/usr/bin/env ruby | |
| 2 | |
| 3 # Meant for use as a git hook: | |
| 4 # CTAGS_HOOK=1 ~/.git_helpers/ctags &>/dev/null </dev/null & | |
| 5 # or an aliased cmd on demand: | |
| 6 # git config alias.ctags '!.git/hooks/ctags' | |
| 7 # or disable when you wish: | |
| 8 # CTAGS_SKIP=1 git rebase | |
| 9 | |
| 10 # Create a tags file (target) using git's list of tracked files. If | |
| 11 # .git/ctags.conf exists in the repo it is passed to the ctags invocation. | |
| 12 # | |
| 13 # When run w/o env, immediately run ctags and replace tags file. | |
| 14 # | |
| 15 # When run with CTAGS_HOOK, it's assumed to be a BG process and we want to wait | |
| 16 # for git to be done applying changes no matter how the hook is triggered. | |
| 17 # Wait five seconds, then bail if we can't get a lock on the tags file or if | |
| 18 # it's been updated within the last minute. Only then, run ctags and replace | |
| 19 # the tags file. | |
| 20 | |
| 21 exit if ENV['CTAGS_SKIP'] | |
| 22 | |
| 23 ctags = 'ctags' | |
| 24 | |
| 25 dir = `git rev-parse --show-toplevel`.chomp | |
| 26 | |
| 27 conf = "#{dir}/.git/ctags.conf" | |
| 28 target = "#{dir}/.tags" | |
| 29 tmp = "#{dir}/.tags.#{$$}~" | |
| 30 | |
| 31 opts = File.exists?(conf) ? "--options=#{conf}" : '' | |
| 32 | |
| 33 sleep 5 if ENV['CTAGS_HOOK'] | |
| 34 | |
| 35 open(target, File::RDONLY|File::CREAT, 0644) do |f| | |
| 36 if ENV['CTAGS_HOOK'] | |
| 37 exit unless f.flock(File::LOCK_EX|File::LOCK_NB) | |
| 38 exit unless (Time.now - f.mtime) > 60 | |
| 39 end | |
| 40 | |
| 41 system(<<-CMD) or exit $?.exitstatus | |
| 42 git ls-files \ | |
| 43 | #{ctags} --tag-relative -L - -f"#{tmp}" #{opts} \ | |
| 44 && mv #{tmp} #{target} | |
| 45 CMD | |
| 46 end | |
| 47 | |
| 48 | |
| 49 |
