From: "SZEDER Gábor" <szeder.dev@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org, "SZEDER Gábor" <szeder.dev@gmail.com>
Subject: [PATCHv2 06/14] completion: don't disambiguate tags and branches
Date: Thu, 23 Mar 2017 16:29:16 +0100 [thread overview]
Message-ID: <20170323152924.23944-7-szeder.dev@gmail.com> (raw)
In-Reply-To: <20170323152924.23944-1-szeder.dev@gmail.com>
When the completion script has to list only tags or only branches, it
uses the 'git for-each-ref' format 'refname:short', which makes sure
that all listed tags and branches are unambiguous. However,
disambiguating tags and branches in these cases is wrong, because:
- __git_tags(), the helper function listing possible tagname
arguments for 'git tag', lists an ambiguous tag
'refs/tags/ambiguous' as 'tags/ambiguous'. Its only consumer,
'git tag' expects its tagname argument to be under 'refs/tags/',
thus it interprets that abgiguous tag as
'refs/tags/tags/ambiguous'. Clearly wrong.
- __git_heads() lists possible branchname arguments for 'git branch'
and possible 'branch.<branchname>' configuration subsections.
Both of these expect branchnames to be under 'refs/heads/' and
misinterpret a disambiguated branchname like 'heads/ambiguous'.
Furthermore, disambiguation involves several stat() syscalls for each
tag or branch, thus comes at a steep cost especially on Windows and/or
when there are a lot of tags or branches to be listed.
Use the 'git for-each-ref' format 'refname:strip=2' instead of
'refname:short' to avoid harmful disambiguation of tags and branches
in __git_tags() and __git_heads().
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
---
contrib/completion/git-completion.bash | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 882635f97..e129f674e 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -340,12 +340,12 @@ __git_index_files ()
__git_heads ()
{
- __git for-each-ref --format='%(refname:short)' refs/heads
+ __git for-each-ref --format='%(refname:strip=2)' refs/heads
}
__git_tags ()
{
- __git for-each-ref --format='%(refname:short)' refs/tags
+ __git for-each-ref --format='%(refname:strip=2)' refs/tags
}
# Lists refs from the local (by default) or from a remote repository.
--
2.12.1.485.g1616aa492
next prev parent reply other threads:[~2017-03-23 15:30 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-23 15:29 [PATCHv2 00/14] completion: speed up refs completion SZEDER Gábor
2017-03-23 15:29 ` [PATCHv2 01/14] completion: remove redundant __gitcomp_nl() options from _git_commit() SZEDER Gábor
2017-03-23 15:29 ` [PATCHv2 02/14] completion: wrap __git_refs() for better option parsing SZEDER Gábor
2017-03-23 15:29 ` [PATCHv2 03/14] completion: support completing full refs after '--option=refs/<TAB>' SZEDER Gábor
2017-03-23 15:29 ` [PATCHv2 04/14] completion: support completing fully qualified non-fast-forward refspecs SZEDER Gábor
2017-03-23 15:29 ` [PATCHv2 05/14] completion: support excluding full refs SZEDER Gábor
2017-03-23 15:29 ` SZEDER Gábor [this message]
2017-03-23 15:29 ` [PATCHv2 07/14] completion: don't disambiguate short refs SZEDER Gábor
2017-03-24 19:31 ` Jeff King
2017-03-23 15:29 ` [PATCHv2 08/14] completion: let 'for-each-ref' and 'ls-remote' filter matching refs SZEDER Gábor
2017-03-24 19:42 ` Jeff King
2017-03-28 15:34 ` SZEDER Gábor
2017-03-23 15:29 ` [PATCHv2 09/14] completion: let 'for-each-ref' strip the remote name from remote branches SZEDER Gábor
2017-03-23 15:29 ` [PATCHv2 10/14] completion: let 'for-each-ref' filter remote branches for 'checkout' DWIMery SZEDER Gábor
2017-03-23 15:29 ` [PATCHv2 11/14] completion: let 'for-each-ref' sort " SZEDER Gábor
2017-03-24 19:53 ` Jeff King
2017-03-23 15:29 ` [PATCHv2 12/14] completion: fill COMPREPLY directly when completing refs SZEDER Gábor
2017-03-23 15:29 ` [PATCHv2 13/14] completion: fill COMPREPLY directly when completing fetch refspecs SZEDER Gábor
2017-03-23 15:29 ` [PATCHv2 14/14] completion: speed up branch and tag completion SZEDER Gábor
2017-03-23 15:33 ` [PATCHv2 00/14] completion: speed up refs completion SZEDER Gábor
2017-03-23 18:28 ` Junio C Hamano
2017-03-24 20:01 ` Jeff King
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