#!/bin/sh
#
# Copyright (c) 2006 Carl D. Worth
#

test_description='Test of the various options to git rm.'

. ./test-lib.sh

# Setup some files to be removed, some with funny characters
test_expect_success \
    'Initialize test directory' \
    "touch -- foo bar baz 'space embedded' -q &&
     git add -- foo bar baz 'space embedded' -q &&
     git commit -m 'add normal files'"

if touch -- 'tab        embedded' 'newline
embedded' 2>/dev/null
then
        test_set_prereq FUNNYNAMES
else
        say 'Your filesystem does not allow tabs in filenames.'
fi

test_expect_success FUNNYNAMES 'add files with funny names' "
     git add -- 'tab    embedded' 'newline
embedded' &&
     git commit -m 'add files with tabs and newlines'
"

test_expect_success \
    'Pre-check that foo exists and is in index before git rm foo' \
    '[ -f foo ] && git ls-files --error-unmatch foo'

test_expect_success \
    'Test that git rm foo succeeds' \
    'git rm --cached foo'

test_expect_success \
    'Test that git rm --cached foo succeeds if the index matches the file' \
    'echo content > foo
     git add foo
     git rm --cached foo'

test_expect_success \
    'Test that git rm --cached foo succeeds if the index matches the file' \
    'echo content > foo
     git add foo
     git commit -m foo
     echo "other content" > foo
     git rm --cached foo'

test_expect_success \
    'Test that git rm --cached foo fails if the index matches neither the file nor HEAD' '
     echo content > foo
     git add foo
     git commit -m foo
     echo "other content" > foo
     git add foo
     echo "yet another content" > foo
     test_must_fail git rm --cached foo
'

test_expect_success \
    'Test that git rm --cached -f foo works in case where --cached only did not' \
    'echo content > foo
     git add foo
     git commit -m foo
     echo "other content" > foo
     git add foo
     echo "yet another content" > foo
     git rm --cached -f foo'

test_expect_success \
    'Post-check that foo exists but is not in index after git rm foo' \
    '[ -f foo ] && test_must_fail git ls-files --error-unmatch foo'

test_expect_success \
    'Pre-check that bar exists and is in index before "git rm bar"' \
    '[ -f bar ] && git ls-files --error-unmatch bar'

test_expect_success \
    'Test that "git rm bar" succeeds' \
    'git rm bar'

test_expect_success \
    'Post-check that bar does not exist and is not in index after "git rm -f bar"' \
    '! [ -f bar ] && test_must_fail git ls-files --error-unmatch bar'

test_expect_success \
    'Test that "git rm -- -q" succeeds (remove a file that looks like an option)' \
    'git rm -- -q'

test_expect_success FUNNYNAMES \
    "Test that \"git rm -f\" succeeds with embedded space, tab, or newline characters." \
    "git rm -f 'space embedded' 'tab    embedded' 'newline
embedded'"

test_expect_success SANITY 'Test that "git rm -f" fails if its rm fails' '
        chmod a-w . &&
        test_must_fail git rm -f baz &&
        chmod 775 .
'

test_expect_success \
    'When the rm in "git rm -f" fails, it should not remove the file from the index' \
    'git ls-files --error-unmatch baz'

test_expect_success 'Remove nonexistent file with --ignore-unmatch' '
        git rm --ignore-unmatch nonexistent
'

test_expect_success '"rm" command printed' '
        echo frotz > test-file &&
        git add test-file &&
        git commit -m "add file for rm test" &&
        git rm test-file > rm-output &&
        test `grep "^rm " rm-output | wc -l` = 1 &&
        rm -f test-file rm-output &&
        git commit -m "remove file from rm test"
'

test_expect_success '"rm" command suppressed with --quiet' '
        echo frotz > test-file &&
        git add test-file &&
        git commit -m "add file for rm --quiet test" &&
        git rm --quiet test-file > rm-output &&
        test `wc -l < rm-output` = 0 &&
        rm -f test-file rm-output &&
        git commit -m "remove file from rm --quiet test"
'

# Now, failure cases.
test_expect_success 'Re-add foo and baz' '
        git add foo baz &&
        git ls-files --error-unmatch foo baz
'

test_expect_success 'Modify foo -- rm should refuse' '
        echo >>foo &&
        test_must_fail git rm foo baz &&
        test -f foo &&
        test -f baz &&
        git ls-files --error-unmatch foo baz
'

test_expect_success 'Modified foo -- rm -f should work' '
        git rm -f foo baz &&
        test ! -f foo &&
        test ! -f baz &&
        test_must_fail git ls-files --error-unmatch foo &&
        test_must_fail git ls-files --error-unmatch bar
'

test_expect_success 'Re-add foo and baz for HEAD tests' '
        echo frotz >foo &&
        git checkout HEAD -- baz &&
        git add foo baz &&
        git ls-files --error-unmatch foo baz
'

test_expect_success 'foo is different in index from HEAD -- rm should refuse' '
        test_must_fail git rm foo baz &&
        test -f foo &&
        test -f baz &&
        git ls-files --error-unmatch foo baz
'

test_expect_success 'but with -f it should work.' '
        git rm -f foo baz &&
        test ! -f foo &&
        test ! -f baz &&
        test_must_fail git ls-files --error-unmatch foo
        test_must_fail git ls-files --error-unmatch baz
'

test_expect_success 'refuse to remove cached empty file with modifications' '
        >empty &&
        git add empty &&
        echo content >empty &&
        test_must_fail git rm --cached empty
'

test_expect_success 'remove intent-to-add file without --force' '
        echo content >intent-to-add &&
        git add -N intent-to-add
        git rm --cached intent-to-add
'

test_expect_success 'Recursive test setup' '
        mkdir -p frotz &&
        echo qfwfq >frotz/nitfol &&
        git add frotz &&
        git commit -m "subdir test"
'

test_expect_success 'Recursive without -r fails' '
        test_must_fail git rm frotz &&
        test -d frotz &&
        test -f frotz/nitfol
'

test_expect_success 'Recursive with -r but dirty' '
        echo qfwfq >>frotz/nitfol
        test_must_fail git rm -r frotz &&
        test -d frotz &&
        test -f frotz/nitfol
'

test_expect_success 'Recursive with -r -f' '
        git rm -f -r frotz &&
        ! test -f frotz/nitfol &&
        ! test -d frotz
'

test_expect_success 'Remove nonexistent file returns nonzero exit status' '
        test_must_fail git rm nonexistent
'

test_expect_success 'Call "rm" from outside the work tree' '
        mkdir repo &&
        (cd repo &&
         git init &&
         echo something > somefile &&
         git add somefile &&
         git commit -m "add a file" &&
         (cd .. &&
          git --git-dir=repo/.git --work-tree=repo rm somefile) &&
        test_must_fail git ls-files --error-unmatch somefile)
'

test_expect_success 'refresh index before checking if it is up-to-date' '

        git reset --hard &&
        test-chmtime -86400 frotz/nitfol &&
        git rm frotz/nitfol &&
        test ! -f frotz/nitfol

'

test_expect_success 'choking "git rm" should not let it die with cruft' '
        git reset -q --hard &&
        i=0 &&
        while test $i -lt 12000
        do
            echo "100644 $_z40 0        some-file-$i"
            i=$(( $i + 1 ))
        done | git update-index --index-info &&
        git rm -n "some-file-*" | :;
        test -f .git/index.lock
        status=$?
        rm -f .git/index.lock
        git reset -q --hard
        test "$status" != 0
'

test_expect_success 'rm removes subdirectories recursively' '
        mkdir -p dir/subdir/subsubdir &&
        echo content >dir/subdir/subsubdir/file &&
        git add dir/subdir/subsubdir/file &&
        git rm -f dir/subdir/subsubdir/file &&
        ! test -d dir
'

cat >expect <<EOF
D  submod
EOF

cat >expect.modified <<EOF
 M submod
EOF

test_expect_success 'rm removes empty submodules from work tree' '
        mkdir submod &&
        git update-index --add --cacheinfo 160000 $(git rev-parse HEAD) submod &&
        git config -f .gitmodules submodule.sub.url ./. &&
        git config -f .gitmodules submodule.sub.path submod &&
        git submodule init &&
        git add .gitmodules &&
        git commit -m "add submodule" &&
        git rm submod &&
        test ! -e submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm removes removed submodule from index' '
        git reset --hard &&
        git submodule update &&
        rm -rf submod &&
        git rm submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm removes work tree of unmodified submodules' '
        git reset --hard &&
        git submodule update &&
        git rm submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm removes a submodule with a trailing /' '
        git reset --hard &&
        git submodule update &&
        git rm submod/ &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm fails when given a file with a trailing /' '
        test_must_fail git rm empty/
'

test_expect_success 'rm succeeds when given a directory with a trailing /' '
        git rm -r frotz/
'

test_expect_success 'rm of a populated submodule with different HEAD fails unless forced' '
        git reset --hard &&
        git submodule update &&
        (cd submod &&
                git checkout HEAD^
        ) &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -f submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect.modified actual &&
        git rm -f submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm of a populated submodule with modifications fails unless forced' '
        git reset --hard &&
        git submodule update &&
        (cd submod &&
                echo X >empty
        ) &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -f submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect.modified actual &&
        git rm -f submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm of a populated submodule with untracked files fails unless forced' '
        git reset --hard &&
        git submodule update &&
        (cd submod &&
                echo X >untracked
        ) &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -f submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect.modified actual &&
        git rm -f submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'setup submodule conflict' '
        git reset --hard &&
        git submodule update &&
        git checkout -b branch1 &&
        echo 1 >nitfol &&
        git add nitfol &&
        git commit -m "added nitfol 1" &&
        git checkout -b branch2 master &&
        echo 2 >nitfol &&
        git add nitfol &&
        git commit -m "added nitfol 2" &&
        git checkout -b conflict1 master &&
        (cd submod &&
                git fetch &&
                git checkout branch1
        ) &&
        git add submod &&
        git commit -m "submod 1" &&
        git checkout -b conflict2 master &&
        (cd submod &&
                git checkout branch2
        ) &&
        git add submod &&
        git commit -m "submod 2"
'

cat >expect.conflict <<EOF
UU submod
EOF

test_expect_success 'rm removes work tree of unmodified conflicted submodule' '
        git checkout conflict1 &&
        git reset --hard &&
        git submodule update &&
        test_must_fail git merge conflict2 &&
        git rm submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm of a conflicted populated submodule with different HEAD fails unless forced' '
        git checkout conflict1 &&
        git reset --hard &&
        git submodule update &&
        (cd submod &&
                git checkout HEAD^
        ) &&
        test_must_fail git merge conflict2 &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -f submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect.conflict actual &&
        git rm -f submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm of a conflicted populated submodule with modifications fails unless forced' '
        git checkout conflict1 &&
        git reset --hard &&
        git submodule update &&
        (cd submod &&
                echo X >empty
        ) &&
        test_must_fail git merge conflict2 &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -f submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect.conflict actual &&
        git rm -f submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm of a conflicted populated submodule with untracked files fails unless forced' '
        git checkout conflict1 &&
        git reset --hard &&
        git submodule update &&
        (cd submod &&
                echo X >untracked
        ) &&
        test_must_fail git merge conflict2 &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -f submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect.conflict actual &&
        git rm -f submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm of a conflicted populated submodule with a .git directory fails even when forced' '
        git checkout conflict1 &&
        git reset --hard &&
        git submodule update &&
        (cd submod &&
                rm .git &&
                cp -R ../.git/modules/sub .git &&
                GIT_WORK_TREE=. git config --unset core.worktree
        ) &&
        test_must_fail git merge conflict2 &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -d submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect.conflict actual &&
        test_must_fail git rm -f submod &&
        test -d submod &&
        test -d submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect.conflict actual &&
        git merge --abort &&
        rm -rf submod
'

test_expect_success 'rm of a conflicted unpopulated submodule succeeds' '
        git checkout conflict1 &&
        git reset --hard &&
        test_must_fail git merge conflict2 &&
        git rm submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm of a populated submodule with a .git directory fails even when forced' '
        git checkout -f master &&
        git reset --hard &&
        git submodule update &&
        (cd submod &&
                rm .git &&
                cp -R ../.git/modules/sub .git &&
                GIT_WORK_TREE=. git config --unset core.worktree
        ) &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -d submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        ! test -s actual &&
        test_must_fail git rm -f submod &&
        test -d submod &&
        test -d submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        ! test -s actual &&
        rm -rf submod
'

cat >expect.deepmodified <<EOF
 M submod/subsubmod
EOF

test_expect_success 'setup subsubmodule' '
        git reset --hard &&
        git submodule update &&
        (cd submod &&
                git update-index --add --cacheinfo 160000 $(git rev-parse HEAD) subsubmod &&
                git config -f .gitmodules submodule.sub.url ../. &&
                git config -f .gitmodules submodule.sub.path subsubmod &&
                git submodule init &&
                git add .gitmodules &&
                git commit -m "add subsubmodule" &&
                git submodule update subsubmod
        ) &&
        git commit -a -m "added deep submodule"
'

test_expect_success 'rm recursively removes work tree of unmodified submodules' '
        git rm submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm of a populated nested submodule with different nested HEAD fails unless forced' '
        git reset --hard &&
        git submodule update --recursive &&
        (cd submod/subsubmod &&
                git checkout HEAD^
        ) &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -f submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect.modified actual &&
        git rm -f submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm of a populated nested submodule with nested modifications fails unless forced' '
        git reset --hard &&
        git submodule update --recursive &&
        (cd submod/subsubmod &&
                echo X >empty
        ) &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -f submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect.modified actual &&
        git rm -f submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm of a populated nested submodule with nested untracked files fails unless forced' '
        git reset --hard &&
        git submodule update --recursive &&
        (cd submod/subsubmod &&
                echo X >untracked
        ) &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -f submod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect.modified actual &&
        git rm -f submod &&
        test ! -d submod &&
        git status -s -uno --ignore-submodules=none > actual &&
        test_cmp expect actual
'

test_expect_success 'rm of a populated nested submodule with a nested .git directory fails even when forced' '
        git reset --hard &&
        git submodule update --recursive &&
        (cd submod/subsubmod &&
                rm .git &&
                cp -R ../../.git/modules/sub/modules/sub .git &&
                GIT_WORK_TREE=. git config --unset core.worktree
        ) &&
        test_must_fail git rm submod &&
        test -d submod &&
        test -d submod/subsubmod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        ! test -s actual &&
        test_must_fail git rm -f submod &&
        test -d submod &&
        test -d submod/subsubmod/.git &&
        git status -s -uno --ignore-submodules=none > actual &&
        ! test -s actual &&
        rm -rf submod
'

test_done