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perl: create and switch variables for hash constants

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git-svn has several variables for SHA-1 constants, including short hash
values and full length hash values.  Since these are no longer SHA-1
specific, let's start them with "oid" instead of "sha1".  Add a
constant, oid_length, which is the length of the hash algorithm in use
in hex.  We use the hex version because overwhelmingly that's what's
used by git-svn.

We don't currently set oid_length based on the repository algorithm, but
we will in a future commit.

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 18:04:12 +00:00
committed by Junio C Hamano
parent 148f193d16
commit 9ab33150a0
4 changed files with 15 additions and 13 deletions
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14
git-svn.perl
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@ -5,7 +5,8 @@ use 5.008;
use warnings;
use strict;
use vars qw/ $AUTHOR $VERSION
$sha1 $sha1_short $_revision $_repository
$oid $oid_short $oid_length
$_revision $_repository
$_q $_authors $_authors_prog %users/;
$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
$VERSION = '@@GIT_VERSION@@';
@ -103,8 +104,9 @@ sub _req_svn {
}
}
$sha1 = qr/[a-f\d]{40}/;
$sha1_short = qr/[a-f\d]{4,40}/;
$oid = qr/(?:[a-f\d]{40}(?:[a-f\d]{24})?)/;
$oid_short = qr/[a-f\d]{4,64}/;
$oid_length = 40;
my ($_stdin, $_help, $_edit,
$_message, $_file, $_branch_dest,
$_template, $_shared,
@ -582,7 +584,7 @@ sub cmd_set_tree {
print "Reading from stdin...\n";
@commits = ();
while (<STDIN>) {
if (/\b($sha1_short)\b/o) {
if (/\b($oid_short)\b/o) {
unshift @commits, $1;
}
}
@ -1831,7 +1833,7 @@ sub get_tree_from_treeish {
if ($type eq 'commit') {
$expected = (grep /^tree /, command(qw/cat-file commit/,
$treeish))[0];
($expected) = ($expected =~ /^tree ($sha1)$/o);
($expected) = ($expected =~ /^tree ($oid)$/o);
die "Unable to get tree from $treeish\n" unless $expected;
} elsif ($type eq 'tree') {
$expected = $treeish;
@ -2036,7 +2038,7 @@ sub working_head_info {
my $hash;
my %max;
while (<$fh>) {
if ( m{^commit ($::sha1)$} ) {
if ( m{^commit ($::oid)$} ) {
unshift @$refs, $hash if $hash and $refs;
$hash = $1;
next;