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From: "Ævar Arnfjörð Bjarmason" <avarab@gmail•com>
To: git@vger•kernel.org
Cc: "Junio C Hamano" <gitster@pobox•com>,
	"Jakub Narebski" <jnareb@gmail•com>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail•com>
Subject: [PATCH v2 2/3] gitweb: Link to 7-char+ SHA1s, not only 8-char+
Date: Thu,  6 Oct 2016 09:11:34 +0000	[thread overview]
Message-ID: <20161006091135.29590-3-avarab@gmail.com> (raw)
In-Reply-To: <20161006091135.29590-1-avarab@gmail.com>

Change the minimum length of an abbreviated object identifier in the
commit message gitweb tries to turn into link from 8 hexchars to 7.

This arbitrary minimum length of 8 was introduced in bfe2191 ("gitweb:
SHA-1 in commit log message links to "object" view", 2006-12-10), but
the default abbreviation length is 7, and has been for a long time.

It's still possible to reference SHA1s down to 4 characters in length,
see v1.7.4-1-gdce9648's MINIMUM_ABBREV, but I can't see how to make
git actually produce that, so I doubt anyone is putting that into log
messages in practice, but people definitely do put 7 character SHA1s
into log messages.

I think it's fairly dubious to link to things matching [0-9a-fA-F]
here as opposed to just [0-9a-f], that dates back to the initial
version of gitweb from 161332a ("first working version",
2005-08-07). Git will accept all-caps SHA1s, but didn't ever produce
them as far as I can tell.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail•com>
---
 gitweb/gitweb.perl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index cba7405..92b5e91 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -2036,7 +2036,7 @@ sub format_log_line_html {
 	my $line = shift;
 
 	$line = esc_html($line, -nbsp=>1);
-	$line =~ s{\b([0-9a-fA-F]{8,40})\b}{
+	$line =~ s{\b([0-9a-fA-F]{7,40})\b}{
 		$cgi->a({-href => href(action=>"object", hash=>$1),
 					-class => "text"}, $1);
 	}eg;
-- 
2.9.3


  parent reply	other threads:[~2016-10-06  9:12 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-06  9:11 [PATCH v2 0/3] gitweb: Be smarter about linking to SHA1s in log messages Ævar Arnfjörð Bjarmason
2016-10-06  9:11 ` [PATCH v2 1/3] gitweb: Fix a typo in a comment Ævar Arnfjörð Bjarmason
2016-10-14 17:34   ` Jakub Narębski
2016-10-06  9:11 ` Ævar Arnfjörð Bjarmason [this message]
2016-10-06 19:44   ` [PATCH v2 2/3] gitweb: Link to 7-char+ SHA1s, not only 8-char+ Junio C Hamano
2016-10-14 17:45   ` Jakub Narębski
2016-10-14 18:40     ` Junio C Hamano
2016-10-15  8:11       ` Ævar Arnfjörð Bjarmason
2016-10-17 16:54         ` Junio C Hamano
2016-10-17 19:46           ` Ævar Arnfjörð Bjarmason
2016-10-06  9:11 ` [PATCH v2 3/3] gitweb: Link to "git describe"'d commits in log messages Ævar Arnfjörð Bjarmason
2016-10-06 19:51   ` Junio C Hamano
2016-10-09 11:20     ` Ævar Arnfjörð Bjarmason
2016-10-14 17:50       ` Ævar Arnfjörð Bjarmason
2016-10-14 19:00         ` Junio C Hamano
2016-10-14 20:06   ` Jakub Narębski

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