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git/t/t7001-mv.sh
Jens Lehmann 1cbd18300a mv: better document side effects when moving a submodule
The "Submodules" section of the "git mv" documentation mentions what will
happen when a submodule with a gitfile gets moved with newer git. But it
doesn't talk about what happens when the user changes between commits
before and after the move, which does not update the work tree like using
the mv command did the first time.

Explain what happens and what the user has to do manually to fix that in
the new BUGS section. Also document this behavior in a new test.

Reported-by: George Papanikolaou <g3orge.app@gmail.com>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-01-07 14:33:04 -08:00

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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 "$TEST_DIRECTORY"/../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 \
'checking -k on non-existing file' \
'git mv -k idontexist path0'
test_expect_success \
'checking -k on untracked file' \
'touch untracked1 &&
git mv -k untracked1 path0 &&
test -f untracked1 &&
test ! -f path0/untracked1'
test_expect_success \
'checking -k on multiple untracked files' \
'touch untracked2 &&
git mv -k untracked1 untracked2 path0 &&
test -f untracked1 &&
test -f untracked2 &&
test ! -f path0/untracked1 &&
test ! -f path0/untracked2'
test_expect_success \
'checking -f on untracked file with existing target' \
'touch path0/untracked1 &&
test_must_fail git mv -f untracked1 path0 &&
test ! -f .git/index.lock &&
test -f untracked1 &&
test -f path0/untracked1'
# clean up the mess in case bad things happen
rm -f idontexist untracked1 untracked2 \
path0/idontexist path0/untracked1 path0/untracked2 \
.git/index.lock
rmdir path1
test_expect_success \
'moving to absent target with trailing slash' \
'test_must_fail git mv path0/COPYING no-such-dir/ &&
test_must_fail git mv path0/COPYING no-such-dir// &&
git mv path0/ no-such-dir/ &&
test_path_is_dir no-such-dir'
test_expect_success \
'clean up' \
'git reset --hard'
test_expect_success \
'moving to existing untracked target with trailing slash' \
'mkdir path1 &&
git mv path0/ path1/ &&
test_path_is_dir path1/path0/'
test_expect_success \
'moving to existing tracked target with trailing slash' \
'mkdir path2 &&
>path2/file && git add path2/file &&
git mv path1/path0/ path2/ &&
test_path_is_dir path2/path0/'
test_expect_success \
'clean up' \
'git reset --hard'
test_expect_success \
'adding another file' \
'cp "$TEST_DIRECTORY"/../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 to move multiple sources into a directory' '
rm -fr .git && git init &&
mkdir dir other &&
>dir/a.txt &&
>dir/b.txt &&
git add dir/?.txt &&
git mv dir/a.txt dir/b.txt other &&
git ls-files >actual &&
{ echo other/a.txt; echo other/b.txt; } >expect &&
test_cmp expect actual
'
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" = "$(git ls-files --stage dirty | cut -f 1)" ]
'
rm -f dirty dirty2
test_expect_success 'git mv should overwrite symlink to a file' '
rm -fr .git &&
git init &&
echo 1 >moved &&
test_ln_s_add moved symlink &&
git add moved &&
test_must_fail git mv moved symlink &&
git mv -f moved symlink &&
! test -e moved &&
test -f symlink &&
test "$(cat symlink)" = 1 &&
git update-index --refresh &&
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 &&
test_ln_s_add moved symlink &&
git add moved &&
test_must_fail git mv symlink moved &&
git mv -f symlink moved &&
! test -e symlink &&
git update-index --refresh &&
git diff-files --quiet
'
test_expect_success SYMLINKS 'check moved symlink' '
test -h moved
'
rm -f moved symlink
test_expect_success 'setup submodule' '
git commit -m initial &&
git reset --hard &&
git submodule add ./. sub &&
echo content >file &&
git add file &&
git commit -m "added sub and file"
'
test_expect_success 'git mv cannot move a submodule in a file' '
test_must_fail git mv sub file
'
test_expect_success 'git mv moves a submodule with a .git directory and no .gitmodules' '
entry="$(git ls-files --stage sub | cut -f 1)" &&
git rm .gitmodules &&
(
cd sub &&
rm -f .git &&
cp -a ../.git/modules/sub .git &&
GIT_WORK_TREE=. git config --unset core.worktree
) &&
mkdir mod &&
git mv sub mod/sub &&
! test -e sub &&
[ "$entry" = "$(git ls-files --stage mod/sub | cut -f 1)" ] &&
(
cd mod/sub &&
git status
) &&
git update-index --refresh &&
git diff-files --quiet
'
test_expect_success 'git mv moves a submodule with a .git directory and .gitmodules' '
rm -rf mod &&
git reset --hard &&
git submodule update &&
entry="$(git ls-files --stage sub | cut -f 1)" &&
(
cd sub &&
rm -f .git &&
cp -a ../.git/modules/sub .git &&
GIT_WORK_TREE=. git config --unset core.worktree
) &&
mkdir mod &&
git mv sub mod/sub &&
! test -e sub &&
[ "$entry" = "$(git ls-files --stage mod/sub | cut -f 1)" ] &&
(
cd mod/sub &&
git status
) &&
echo mod/sub >expected &&
git config -f .gitmodules submodule.sub.path >actual &&
test_cmp expected actual &&
git update-index --refresh &&
git diff-files --quiet
'
test_expect_success 'git mv moves a submodule with gitfile' '
rm -rf mod/sub &&
git reset --hard &&
git submodule update &&
entry="$(git ls-files --stage sub | cut -f 1)" &&
(
cd mod &&
git mv ../sub/ .
) &&
! test -e sub &&
[ "$entry" = "$(git ls-files --stage mod/sub | cut -f 1)" ] &&
(
cd mod/sub &&
git status
) &&
echo mod/sub >expected &&
git config -f .gitmodules submodule.sub.path >actual &&
test_cmp expected actual &&
git update-index --refresh &&
git diff-files --quiet
'
test_expect_success 'mv does not complain when no .gitmodules file is found' '
rm -rf mod/sub &&
git reset --hard &&
git submodule update &&
git rm .gitmodules &&
entry="$(git ls-files --stage sub | cut -f 1)" &&
git mv sub mod/sub 2>actual.err &&
! test -s actual.err &&
! test -e sub &&
[ "$entry" = "$(git ls-files --stage mod/sub | cut -f 1)" ] &&
(
cd mod/sub &&
git status
) &&
git update-index --refresh &&
git diff-files --quiet
'
test_expect_success 'mv will error out on a modified .gitmodules file unless staged' '
rm -rf mod/sub &&
git reset --hard &&
git submodule update &&
git config -f .gitmodules foo.bar true &&
entry="$(git ls-files --stage sub | cut -f 1)" &&
test_must_fail git mv sub mod/sub 2>actual.err &&
test -s actual.err &&
test -e sub &&
git diff-files --quiet -- sub &&
git add .gitmodules &&
git mv sub mod/sub 2>actual.err &&
! test -s actual.err &&
! test -e sub &&
[ "$entry" = "$(git ls-files --stage mod/sub | cut -f 1)" ] &&
(
cd mod/sub &&
git status
) &&
git update-index --refresh &&
git diff-files --quiet
'
test_expect_success 'mv issues a warning when section is not found in .gitmodules' '
rm -rf mod/sub &&
git reset --hard &&
git submodule update &&
git config -f .gitmodules --remove-section submodule.sub &&
git add .gitmodules &&
entry="$(git ls-files --stage sub | cut -f 1)" &&
echo "warning: Could not find section in .gitmodules where path=sub" >expect.err &&
git mv sub mod/sub 2>actual.err &&
test_i18ncmp expect.err actual.err &&
! test -e sub &&
[ "$entry" = "$(git ls-files --stage mod/sub | cut -f 1)" ] &&
(
cd mod/sub &&
git status
) &&
git update-index --refresh &&
git diff-files --quiet
'
test_expect_success 'mv --dry-run does not touch the submodule or .gitmodules' '
rm -rf mod/sub &&
git reset --hard &&
git submodule update &&
git mv -n sub mod/sub 2>actual.err &&
test -f sub/.git &&
git diff-index --exit-code HEAD &&
git update-index --refresh &&
git diff-files --quiet -- sub .gitmodules
'
test_expect_success 'checking out a commit before submodule moved needs manual updates' '
git mv sub sub2 &&
git commit -m "moved sub to sub2" &&
git checkout -q HEAD^ 2>actual &&
echo "warning: unable to rmdir sub2: Directory not empty" >expected &&
test_i18ncmp expected actual &&
git status -s sub2 >actual &&
echo "?? sub2/" >expected &&
test_cmp expected actual &&
! test -f sub/.git &&
test -f sub2/.git &&
git submodule update &&
test -f sub/.git &&
rm -rf sub2 &&
git diff-index --exit-code HEAD &&
git update-index --refresh &&
git diff-files --quiet -- sub .gitmodules &&
git status -s sub2 >actual &&
! test -s actual
'
test_done