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completion: match ctags symbol names in grep patterns

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A common thing to grep for is the name of a symbol. This
patch teaches the completion for "git grep" to look in
a 'tags' file, if present, to complete a pattern. For
example, in git.git:

  $ make tags
  $ git grep get_sha1<Tab><Tab>
  get_sha1                 get_sha1_oneline
  get_sha1_1               get_sha1_with_context
  get_sha1_basic           get_sha1_with_context_1
  get_sha1_hex             get_sha1_with_mode
  get_sha1_hex_segment     get_sha1_with_mode_1
  get_sha1_mb

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2011-10-21 13:30:21 -04:00 committed by Junio C Hamano
parent 21e4631c07
commit 29eec71f21
1 changed files with 13 additions and 0 deletions
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13
contrib/completion/git-completion.bash
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@ -1429,6 +1429,10 @@ _git_gitk ()
_gitk _gitk
} }
__git_match_ctag() {
awk "/^${1////\\/}/ { print \$1 }" "$2"
}
_git_grep () _git_grep ()
{ {
__git_has_doubledash && return __git_has_doubledash && return
@ -1451,6 +1455,15 @@ _git_grep ()
;; ;;
esac esac
case "$cword,$prev" in
2,*|*,-*)
if test -r tags; then
__gitcomp "$(__git_match_ctag "$cur" tags)"
return
fi
;;
esac
__gitcomp "$(__git_refs)" __gitcomp "$(__git_refs)"
} }