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authorSZEDER Gábor <szeder.dev@gmail.com>2017-03-23 15:29:20 (GMT)
committerJunio C Hamano <gitster@pobox.com>2017-03-23 18:18:22 (GMT)
commit824388d54b238b0d0cdc3f584dd27cb334df4ebc (patch)
tree47f19c41d58200f7282088c8f80f0d94c53583bb /contrib
parente8cb02343310dbc5fea4df59cb349402dfcf7df1 (diff)
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completion: let 'for-each-ref' filter remote branches for 'checkout' DWIMery
The code listing unique remote branches for 'git checkout's tracking DWIMery outputs only remote branches that match the current word to be completed, but the filtering is done in a shell loop iterating over all remote refs. Let 'git for-each-ref' do the filtering, as it can do so much more efficiently and we can remove that shell loop entirely. This speeds up refs completion for 'git checkout' considerably when there are a lot of non-matching remote refs to be filtered out. Uniquely completing a branch in a repository with 100k remote branches, all packed, best of five: On Linux, before: $ time __git_complete_refs --cur=maste --track real 0m1.993s user 0m1.740s sys 0m0.304s After: real 0m0.266s user 0m0.248s sys 0m0.012s On Windows, before: real 0m6.187s user 0m3.358s sys 0m2.121s After: real 0m0.750s user 0m0.015s sys 0m0.090s Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'contrib')
-rw-r--r--contrib/completion/git-completion.bash12
1 files changed, 3 insertions, 9 deletions
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 206eaf0..394dcec 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -422,15 +422,9 @@ __git_refs ()
# employ the heuristic used by git checkout
# Try to find a remote branch that matches the completion word
# but only output if the branch name is unique
- local ref entry
- __git for-each-ref --shell --format="ref=%(refname:strip=3)" \
- "refs/remotes/" | \
- while read -r entry; do
- eval "$entry"
- if [[ "$ref" == "$match"* ]]; then
- echo "$ref"
- fi
- done | sort | uniq -u
+ __git for-each-ref --format="%(refname:strip=3)" \
+ "refs/remotes/*/$match*" "refs/remotes/*/$match*/**" | \
+ sort | uniq -u
fi
return
fi