git/t/t1005-read-tree-reset.sh
Jens Lehmann ea5070c91f Teach read-tree the -n|--dry-run option
The option can be used to check if read-tree with the same set of other
options like "-m" and "-u" would succeed without actually changing either
the index or the working tree.

The relevant tests in the t10?? range were extended to do a read-tree -n
before the real read-tree to make sure neither the index nor any local
files were changed with -n and the same exit code as without -n is
returned. The helper functions added for that purpose reside in the new
t/lib-read-tree.sh file.

The only exception is #13 in t1004 ("unlinking an un-unlink-able
symlink"). As this is an issue of wrong directory permissions it is not
detected with -n.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-25 15:04:25 -07:00

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#!/bin/sh
test_description='read-tree -u --reset'
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-read-tree.sh
# two-tree test
test_expect_success 'setup' '
git init &&
mkdir df &&
echo content >df/file &&
git add df/file &&
git commit -m one &&
git ls-files >expect &&
rm -rf df &&
echo content >df &&
git add df &&
echo content >new &&
git add new &&
git commit -m two
'
test_expect_success 'reset should work' '
read_tree_u_must_succeed -u --reset HEAD^ &&
git ls-files >actual &&
test_cmp expect actual
'
test_expect_success 'reset should remove remnants from a failed merge' '
read_tree_u_must_succeed --reset -u HEAD &&
git ls-files -s >expect &&
sha1=$(git rev-parse :new) &&
(
echo "100644 $sha1 1 old"
echo "100644 $sha1 3 old"
) | git update-index --index-info &&
>old &&
git ls-files -s &&
read_tree_u_must_succeed --reset -u HEAD &&
git ls-files -s >actual &&
! test -f old
'
test_expect_success 'Porcelain reset should remove remnants too' '
read_tree_u_must_succeed --reset -u HEAD &&
git ls-files -s >expect &&
sha1=$(git rev-parse :new) &&
(
echo "100644 $sha1 1 old"
echo "100644 $sha1 3 old"
) | git update-index --index-info &&
>old &&
git ls-files -s &&
git reset --hard &&
git ls-files -s >actual &&
! test -f old
'
test_expect_success 'Porcelain checkout -f should remove remnants too' '
read_tree_u_must_succeed --reset -u HEAD &&
git ls-files -s >expect &&
sha1=$(git rev-parse :new) &&
(
echo "100644 $sha1 1 old"
echo "100644 $sha1 3 old"
) | git update-index --index-info &&
>old &&
git ls-files -s &&
git checkout -f &&
git ls-files -s >actual &&
! test -f old
'
test_expect_success 'Porcelain checkout -f HEAD should remove remnants too' '
read_tree_u_must_succeed --reset -u HEAD &&
git ls-files -s >expect &&
sha1=$(git rev-parse :new) &&
(
echo "100644 $sha1 1 old"
echo "100644 $sha1 3 old"
) | git update-index --index-info &&
>old &&
git ls-files -s &&
git checkout -f HEAD &&
git ls-files -s >actual &&
! test -f old
'
test_done