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checkout: fix regression in checkout -b on intitial checkout

When doing a 'checkout -b' do a full checkout including updating the working
tree when doing the initial checkout. As the new test involves an filesystem
access, do it later in the sequence to give chance to other cheaper tests to
leave early. This fixes the regression in behavior caused by fa655d8411
(checkout: optimize "git checkout -b <new_branch>", 2018-08-16).

Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Ben Peart 6 years ago committed by Junio C Hamano
parent
commit
8424bfd45b
  1. 8
      builtin/checkout.c
  2. 2
      t/t2018-checkout-branch.sh

8
builtin/checkout.c

@ -566,6 +566,14 @@ static int skip_merge_working_tree(const struct checkout_opts *opts, @@ -566,6 +566,14 @@ static int skip_merge_working_tree(const struct checkout_opts *opts,
* Remaining variables are not checkout options but used to track state
*/

/*
* Do the merge if this is the initial checkout. We cannot use
* is_cache_unborn() here because the index hasn't been loaded yet
* so cache_nr and timestamp.sec are always zero.
*/
if (!file_exists(get_index_file()))
return 0;

return 1;
}


2
t/t2018-checkout-branch.sh

@ -198,7 +198,7 @@ test_expect_success 'checkout -B to the current branch works' ' @@ -198,7 +198,7 @@ test_expect_success 'checkout -B to the current branch works' '
test_dirty_mergeable
'

test_expect_failure 'checkout -b after clone --no-checkout does a checkout of HEAD' '
test_expect_success 'checkout -b after clone --no-checkout does a checkout of HEAD' '
git init src &&
test_commit -C src a &&
rev="$(git -C src rev-parse HEAD)" &&

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