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git/t/t7001-mv.sh
Petr Baudis 81dc2307d0 git-mv: Keep moved index entries inact
The rewrite of git-mv from a shell script to a builtin was perhaps
a little too straightforward: the git add and git rm queues were
emulated directly, which resulted in a rather complicated code and
caused an inconsistent behaviour when moving dirty index entries;
git mv would update the entry based on working tree state,
except in case of overwrites, where the new entry would still have
sha1 of the old file.

This patch introduces rename_index_entry_at() into the index toolkit,
which will rename an entry while removing any entries the new entry
might render duplicate. This is then used in git mv instead
of all the file queues, resulting in a major simplification
of the code and an inevitable change in git mv -n output format.

Also the code used to refuse renaming overwriting symlink with a regular
file and vice versa; there is no need for that.

A few new tests have been added to the testsuite to reflect this change.

Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-27 15:05:19 -07:00

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#!/bin/sh
test_description='git mv in subdirs'
. ./test-lib.sh
test_expect_success \
'prepare reference tree' \
'mkdir path0 path1 &&
cp ../../COPYING path0/COPYING &&
git add path0/COPYING &&
git-commit -m add -a'
test_expect_success \
'moving the file out of subdirectory' \
'cd path0 && git mv COPYING ../path1/COPYING'
# in path0 currently
test_expect_success \
'commiting the change' \
'cd .. && git-commit -m move-out -a'
test_expect_success \
'checking the commit' \
'git diff-tree -r -M --name-status HEAD^ HEAD | \
grep "^R100..*path0/COPYING..*path1/COPYING"'
test_expect_success \
'moving the file back into subdirectory' \
'cd path0 && git mv ../path1/COPYING COPYING'
# in path0 currently
test_expect_success \
'commiting the change' \
'cd .. && git-commit -m move-in -a'
test_expect_success \
'checking the commit' \
'git diff-tree -r -M --name-status HEAD^ HEAD | \
grep "^R100..*path1/COPYING..*path0/COPYING"'
test_expect_success \
'adding another file' \
'cp ../../README path0/README &&
git add path0/README &&
git-commit -m add2 -a'
test_expect_success \
'moving whole subdirectory' \
'git mv path0 path2'
test_expect_success \
'commiting the change' \
'git-commit -m dir-move -a'
test_expect_success \
'checking the commit' \
'git diff-tree -r -M --name-status HEAD^ HEAD | \
grep "^R100..*path0/COPYING..*path2/COPYING" &&
git diff-tree -r -M --name-status HEAD^ HEAD | \
grep "^R100..*path0/README..*path2/README"'
test_expect_success \
'succeed when source is a prefix of destination' \
'git mv path2/COPYING path2/COPYING-renamed'
test_expect_success \
'moving whole subdirectory into subdirectory' \
'git mv path2 path1'
test_expect_success \
'commiting the change' \
'git-commit -m dir-move -a'
test_expect_success \
'checking the commit' \
'git diff-tree -r -M --name-status HEAD^ HEAD | \
grep "^R100..*path2/COPYING..*path1/path2/COPYING" &&
git diff-tree -r -M --name-status HEAD^ HEAD | \
grep "^R100..*path2/README..*path1/path2/README"'
test_expect_success \
'do not move directory over existing directory' \
'mkdir path0 && mkdir path0/path2 && test_must_fail git mv path2 path0'
test_expect_success \
'move into "."' \
'git mv path1/path2/ .'
test_expect_success "Michael Cassar's test case" '
rm -fr .git papers partA &&
git init &&
mkdir -p papers/unsorted papers/all-papers partA &&
echo a > papers/unsorted/Thesis.pdf &&
echo b > partA/outline.txt &&
echo c > papers/unsorted/_another &&
git add papers partA &&
T1=`git write-tree` &&
git mv papers/unsorted/Thesis.pdf papers/all-papers/moo-blah.pdf &&
T=`git write-tree` &&
git ls-tree -r $T | grep partA/outline.txt || {
git ls-tree -r $T
(exit 1)
}
'
rm -fr papers partA path?
test_expect_success "Sergey Vlasov's test case" '
rm -fr .git &&
git init &&
mkdir ab &&
date >ab.c &&
date >ab/d &&
git add ab.c ab &&
git commit -m 'initial' &&
git mv ab a
'
test_expect_success 'absolute pathname' '(
rm -fr mine &&
mkdir mine &&
cd mine &&
test_create_repo one &&
cd one &&
mkdir sub &&
>sub/file &&
git add sub/file &&
git mv sub "$(pwd)/in" &&
! test -d sub &&
test -d in &&
git ls-files --error-unmatch in/file
)'
test_expect_success 'absolute pathname outside should fail' '(
rm -fr mine &&
mkdir mine &&
cd mine &&
out=$(pwd) &&
test_create_repo one &&
cd one &&
mkdir sub &&
>sub/file &&
git add sub/file &&
test_must_fail git mv sub "$out/out" &&
test -d sub &&
! test -d ../in &&
git ls-files --error-unmatch sub/file
)'
test_expect_success 'git mv should not change sha1 of moved cache entry' '
rm -fr .git &&
git init &&
echo 1 >dirty &&
git add dirty &&
entry="$(git ls-files --stage dirty | cut -f 1)"
git mv dirty dirty2 &&
[ "$entry" = "$(git ls-files --stage dirty2 | cut -f 1)" ] &&
echo 2 >dirty2 &&
git mv dirty2 dirty &&
[ "$entry" = "$(git ls-files --stage dirty | cut -f 1)" ]
'
rm -f dirty dirty2
test_expect_success 'git mv should overwrite symlink to a file' '
rm -fr .git &&
git init &&
echo 1 >moved &&
ln -s moved symlink &&
git add moved symlink &&
test_must_fail git mv moved symlink &&
git mv -f moved symlink &&
! test -e moved &&
test -f symlink &&
test "$(cat symlink)" = 1 &&
git diff-files --quiet
'
rm -f moved symlink
test_expect_success 'git mv should overwrite file with a symlink' '
rm -fr .git &&
git init &&
echo 1 >moved &&
ln -s moved symlink &&
git add moved symlink &&
test_must_fail git mv symlink moved &&
git mv -f symlink moved &&
! test -e symlink &&
test -h moved &&
git diff-files --quiet
'
rm -f moved symlink
test_done