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git-svn: set the OID length based on hash algorithm

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When reading the configuration or when creating a new repository, load
the extensions.objectFormat value and set the object ID length to 64 if
it's "sha256".  Note that we use the hex length in git-svn because most
of our processing is done on hex values, not binary ones.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Acked-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
brian m. carlson 2020-06-22 18:04:15 +00:00 committed by Junio C Hamano
parent 94b2ee1aee
commit 66eadd119a
1 changed files with 7 additions and 0 deletions
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7
git-svn.perl
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@ -500,6 +500,7 @@ sub do_git_init_db {
command_noisy('config', "$pfx.preserve-empty-dirs", 'true');
command_noisy('config', "$pfx.placeholder-filename", $$fname);
}
load_object_format();
}
sub init_subdir {
@ -1977,9 +1978,15 @@ sub read_git_config {
}
}
}
load_object_format();
delete @$opts{@config_only} if @config_only;
}
sub load_object_format {
chomp(my $hash = `git config --get extensions.objectformat`);
$::oid_length = 64 if $hash eq 'sha256';
}
sub extract_metadata {
my $id = shift or return (undef, undef, undef);
my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)