add--interactive: compute the empty tree value
The interactive add script hard-codes the object ID of the empty tree. To avoid any problems when changing hashes, compute this value when used and cache it for any future uses. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
brian m. carlson committed
May 2, 2018 at 00:26 UTC
23ec4c51d53f6976bdb54e92487d378f9abd1ed3
1 file changed
+9
-2
git-add--interactive.perl
+9
-2
@@ -205,8 +205,15 @@ my $status_head = sprintf($status_fmt, __('staged'), __('unstaged'), __('path'))
205
}
206
}
207
208
-sub get_empty_tree {
209
- return '4b825dc642cb6eb9a060e54bf8d69288fbee4904';
208
+{
209
+ my $empty_tree;
210
+ sub get_empty_tree {
211
+ return $empty_tree if defined $empty_tree;
212
+
213
+ $empty_tree = run_cmd_pipe(qw(git hash-object -t tree /dev/null));
214
+ chomp $empty_tree;
215
+ return $empty_tree;
216
+ }
217
}
218
219
sub get_diff_reference {