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Fix describe --tags --long so it does not segfault

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If we match a lightweight (non-annotated tag) as the name to
output and --long was requested we do not have a tag, nor do
we have a tagged object to display.  Instead we must use the
object we were passed as input for the long format display.

Reported-by: Mark Burton <markb@ordern.com>
Backtraced-by: Mikael Magnusson <mikachu@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Shawn O. Pearce 2008-07-03 02:32:45 +00:00 committed by Junio C Hamano
parent 7ad0f27b92
commit 14d4642e2a
2 changed files with 3 additions and 1 deletions
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2
builtin-describe.c
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@ -204,7 +204,7 @@ static void describe(const char *arg, int last_one)
*/ */
display_name(n); display_name(n);
if (longformat) if (longformat)
show_suffix(0, n->tag->tagged->sha1); show_suffix(0, n->tag ? n->tag->tagged->sha1 : sha1);
printf("\n"); printf("\n");
return; return;
} }

2
t/t6120-describe.sh
View file

@ -139,4 +139,6 @@ check_describe "test1-lightweight-*" --tags --match="test1-*"
check_describe "test2-lightweight-*" --tags --match="test2-*" check_describe "test2-lightweight-*" --tags --match="test2-*"
check_describe "test2-lightweight-*" --long --tags --match="test2-*" HEAD^
test_done test_done