#!/bin/sh
#
# Copyright (c) 2007 Lars Hjemli
#

test_description='Basic porcelain support for submodules

This test tries to verify basic sanity of the init, update and status
subcommands of git submodule.
'

. ./test-lib.sh

test_expect_success 'submodule deinit works on empty repository' '
        git submodule deinit --all
'

test_expect_success 'setup - initial commit' '
        >t &&
        git add t &&
        git commit -m "initial commit" &&
        git branch initial
'

test_expect_success 'submodule init aborts on missing .gitmodules file' '
        test_when_finished "git update-index --remove sub" &&
        git update-index --add --cacheinfo 160000,$(git rev-parse HEAD),sub &&
        # missing the .gitmodules file here
        test_must_fail git submodule init 2>actual &&
        test_i18ngrep "No url found for submodule path" actual
'

test_expect_success 'submodule update aborts on missing .gitmodules file' '
        test_when_finished "git update-index --remove sub" &&
        git update-index --add --cacheinfo 160000,$(git rev-parse HEAD),sub &&
        # missing the .gitmodules file here
        git submodule update sub 2>actual &&
        test_i18ngrep "Submodule path .sub. not initialized" actual
'

test_expect_success 'submodule update aborts on missing gitmodules url' '
        test_when_finished "git update-index --remove sub" &&
        git update-index --add --cacheinfo 160000,$(git rev-parse HEAD),sub &&
        test_when_finished "rm -f .gitmodules" &&
        git config -f .gitmodules submodule.s.path sub &&
        test_must_fail git submodule init
'

test_expect_success 'configuration parsing' '
        test_when_finished "rm -f .gitmodules" &&
        cat >.gitmodules <<-\EOF &&
        [submodule "s"]
                path
                ignore
        EOF
        test_must_fail git status
'

test_expect_success 'setup - repository in init subdirectory' '
        mkdir init &&
        (
                cd init &&
                git init &&
                echo a >a &&
                git add a &&
                git commit -m "submodule commit 1" &&
                git tag -a -m "rev-1" rev-1
        )
'

test_expect_success 'setup - commit with gitlink' '
        echo a >a &&
        echo z >z &&
        git add a init z &&
        git commit -m "super commit 1"
'

test_expect_success 'setup - hide init subdirectory' '
        mv init .subrepo
'

test_expect_success 'setup - repository to add submodules to' '
        git init addtest &&
        git init addtest-ignore
'

# The 'submodule add' tests need some repository to add as a submodule.
# The trash directory is a good one as any. We need to canonicalize
# the name, though, as some tests compare it to the absolute path git
# generates, which will expand symbolic links.
submodurl=$(pwd -P)

listbranches() {
        git for-each-ref --format='%(refname)' 'refs/heads/*'
}

inspect() {
        dir=$1 &&
        dotdot="${2:-..}" &&

        (
                cd "$dir" &&
                listbranches >"$dotdot/heads" &&
                { git symbolic-ref HEAD || :; } >"$dotdot/head" &&
                git rev-parse HEAD >"$dotdot/head-sha1" &&
                git update-index --refresh &&
                git diff-files --exit-code &&
                git clean -n -d -x >"$dotdot/untracked"
        )
}

test_expect_success 'submodule add' '
        echo "refs/heads/master" >expect &&
        >empty &&

        (
                cd addtest &&
                git submodule add -q "$submodurl" submod >actual &&
                test_must_be_empty actual &&
                echo "gitdir: ../.git/modules/submod" >expect &&
                test_cmp expect submod/.git &&
                (
                        cd submod &&
                        git config core.worktree >actual &&
                        echo "../../../submod" >expect &&
                        test_cmp expect actual &&
                        rm -f actual expect
                ) &&
                git submodule init
        ) &&

        rm -f heads head untracked &&
        inspect addtest/submod ../.. &&
        test_cmp expect heads &&
        test_cmp expect head &&
        test_cmp empty untracked
'

test_expect_success 'submodule add to .gitignored path fails' '
        (
                cd addtest-ignore &&
                cat <<-\EOF >expect &&
                The following path is ignored by one of your .gitignore files:
                submod
                Use -f if you really want to add it.
                EOF
                # Does not use test_commit due to the ignore
                echo "*" > .gitignore &&
                git add --force .gitignore &&
                git commit -m"Ignore everything" &&
                ! git submodule add "$submodurl" submod >actual 2>&1 &&
                test_i18ncmp expect actual
        )
'

test_expect_success 'submodule add to .gitignored path with --force' '
        (
                cd addtest-ignore &&
                git submodule add --force "$submodurl" submod
        )
'

test_expect_success 'submodule add to reconfigure existing submodule with --force' '
        (
                cd addtest-ignore &&
                git submodule add --force bogus-url submod &&
                git submodule add -b initial "$submodurl" submod-branch &&
                test "bogus-url" = "$(git config -f .gitmodules submodule.submod.url)" &&
                test "bogus-url" = "$(git config submodule.submod.url)" &&
                # Restore the url
                git submodule add --force "$submodurl" submod
                test "$submodurl" = "$(git config -f .gitmodules submodule.submod.url)" &&
                test "$submodurl" = "$(git config submodule.submod.url)"
        )
'

test_expect_success 'submodule add --branch' '
        echo "refs/heads/initial" >expect-head &&
        cat <<-\EOF >expect-heads &&
        refs/heads/initial
        refs/heads/master
        EOF
        >empty &&

        (
                cd addtest &&
                git submodule add -b initial "$submodurl" submod-branch &&
                test "initial" = "$(git config -f .gitmodules submodule.submod-branch.branch)" &&
                git submodule init
        ) &&

        rm -f heads head untracked &&
        inspect addtest/submod-branch ../.. &&
        test_cmp expect-heads heads &&
        test_cmp expect-head head &&
        test_cmp empty untracked
'

test_expect_success 'submodule add with ./ in path' '
        echo "refs/heads/master" >expect &&
        >empty &&

        (
                cd addtest &&
                git submodule add "$submodurl" ././dotsubmod/./frotz/./ &&
                git submodule init
        ) &&

        rm -f heads head untracked &&
        inspect addtest/dotsubmod/frotz ../../.. &&
        test_cmp expect heads &&
        test_cmp expect head &&
        test_cmp empty untracked
'

test_expect_success 'submodule add with /././ in path' '
        echo "refs/heads/master" >expect &&
        >empty &&

        (
                cd addtest &&
                git submodule add "$submodurl" dotslashdotsubmod/././frotz/./ &&
                git submodule init
        ) &&

        rm -f heads head untracked &&
        inspect addtest/dotslashdotsubmod/frotz ../../.. &&
        test_cmp expect heads &&
        test_cmp expect head &&
        test_cmp empty untracked
'

test_expect_success 'submodule add with // in path' '
        echo "refs/heads/master" >expect &&
        >empty &&

        (
                cd addtest &&
                git submodule add "$submodurl" slashslashsubmod///frotz// &&
                git submodule init
        ) &&

        rm -f heads head untracked &&
        inspect addtest/slashslashsubmod/frotz ../../.. &&
        test_cmp expect heads &&
        test_cmp expect head &&
        test_cmp empty untracked
'

test_expect_success 'submodule add with /.. in path' '
        echo "refs/heads/master" >expect &&
        >empty &&

        (
                cd addtest &&
                git submodule add "$submodurl" dotdotsubmod/../realsubmod/frotz/.. &&
                git submodule init
        ) &&

        rm -f heads head untracked &&
        inspect addtest/realsubmod ../.. &&
        test_cmp expect heads &&
        test_cmp expect head &&
        test_cmp empty untracked
'

test_expect_success 'submodule add with ./, /.. and // in path' '
        echo "refs/heads/master" >expect &&
        >empty &&

        (
                cd addtest &&
                git submodule add "$submodurl" dot/dotslashsubmod/./../..////realsubmod2/a/b/c/d/../../../../frotz//.. &&
                git submodule init
        ) &&

        rm -f heads head untracked &&
        inspect addtest/realsubmod2 ../.. &&
        test_cmp expect heads &&
        test_cmp expect head &&
        test_cmp empty untracked
'

test_expect_success !CYGWIN 'submodule add with \\ in path' '
        test_when_finished "rm -rf parent sub\\with\\backslash" &&

        # Initialize a repo with a backslash in its name
        git init sub\\with\\backslash &&
        touch sub\\with\\backslash/empty.file &&
        git -C sub\\with\\backslash add empty.file &&
        git -C sub\\with\\backslash commit -m "Added empty.file" &&

        # Add that repository as a submodule
        git init parent &&
        git -C parent submodule add ../sub\\with\\backslash
'

test_expect_success 'submodule add in subdirectory' '
        echo "refs/heads/master" >expect &&
        >empty &&

        mkdir addtest/sub &&
        (
                cd addtest/sub &&
                git submodule add "$submodurl" ../realsubmod3 &&
                git submodule init
        ) &&

        rm -f heads head untracked &&
        inspect addtest/realsubmod3 ../.. &&
        test_cmp expect heads &&
        test_cmp expect head &&
        test_cmp empty untracked
'

test_expect_success 'submodule add in subdirectory with relative path should fail' '
        (
                cd addtest/sub &&
                test_must_fail git submodule add ../../ submod3 2>../../output.err
        ) &&
        test_i18ngrep toplevel output.err
'

test_expect_success 'setup - add an example entry to .gitmodules' '
        git config --file=.gitmodules submodule.example.url git://example.com/init.git
'

test_expect_success 'status should fail for unmapped paths' '
        test_must_fail git submodule status
'

test_expect_success 'setup - map path in .gitmodules' '
        cat <<\EOF >expect &&
[submodule "example"]
        url = git://example.com/init.git
        path = init
EOF

        git config --file=.gitmodules submodule.example.path init &&

        test_cmp expect .gitmodules
'

test_expect_success 'status should only print one line' '
        git submodule status >lines &&
        test_line_count = 1 lines
'

test_expect_success 'setup - fetch commit name from submodule' '
        rev1=$(cd .subrepo && git rev-parse HEAD) &&
        printf "rev1: %s\n" "$rev1" &&
        test -n "$rev1"
'

test_expect_success 'status should initially be "missing"' '
        git submodule status >lines &&
        grep "^-$rev1" lines
'

test_expect_success 'init should register submodule url in .git/config' '
        echo git://example.com/init.git >expect &&

        git submodule init &&
        git config submodule.example.url >url &&
        git config submodule.example.url ./.subrepo &&

        test_cmp expect url
'

test_failure_with_unknown_submodule () {
        test_must_fail git submodule $1 no-such-submodule 2>output.err &&
        grep "^error: .*no-such-submodule" output.err
}

test_expect_success 'init should fail with unknown submodule' '
        test_failure_with_unknown_submodule init
'

test_expect_success 'update should fail with unknown submodule' '
        test_failure_with_unknown_submodule update
'

test_expect_success 'status should fail with unknown submodule' '
        test_failure_with_unknown_submodule status
'

test_expect_success 'sync should fail with unknown submodule' '
        test_failure_with_unknown_submodule sync
'

test_expect_success 'update should fail when path is used by a file' '
        echo hello >expect &&

        echo "hello" >init &&
        test_must_fail git submodule update &&

        test_cmp expect init
'

test_expect_success 'update should fail when path is used by a nonempty directory' '
        echo hello >expect &&

        rm -fr init &&
        mkdir init &&
        echo "hello" >init/a &&

        test_must_fail git submodule update &&

        test_cmp expect init/a
'

test_expect_success 'update should work when path is an empty dir' '
        rm -fr init &&
        rm -f head-sha1 &&
        echo "$rev1" >expect &&

        mkdir init &&
        git submodule update -q >update.out &&
        test_must_be_empty update.out &&

        inspect init &&
        test_cmp expect head-sha1
'

test_expect_success 'status should be "up-to-date" after update' '
        git submodule status >list &&
        grep "^ $rev1" list
'

test_expect_success 'status "up-to-date" from subdirectory' '
        mkdir -p sub &&
        (
                cd sub &&
                git submodule status >../list
        ) &&
        grep "^ $rev1" list &&
        grep "\\.\\./init" list
'

test_expect_success 'status "up-to-date" from subdirectory with path' '
        mkdir -p sub &&
        (
                cd sub &&
                git submodule status ../init >../list
        ) &&
        grep "^ $rev1" list &&
        grep "\\.\\./init" list
'

test_expect_success 'status should be "modified" after submodule commit' '
        (
                cd init &&
                echo b >b &&
                git add b &&
                git commit -m "submodule commit 2"
        ) &&

        rev2=$(cd init && git rev-parse HEAD) &&
        test -n "$rev2" &&
        git submodule status >list &&

        grep "^+$rev2" list
'

test_expect_success 'the --cached sha1 should be rev1' '
        git submodule --cached status >list &&
        grep "^+$rev1" list
'

test_expect_success 'git diff should report the SHA1 of the new submodule commit' '
        git diff >diff &&
        grep "^+Subproject commit $rev2" diff
'

test_expect_success 'update should checkout rev1' '
        rm -f head-sha1 &&
        echo "$rev1" >expect &&

        git submodule update init &&
        inspect init &&

        test_cmp expect head-sha1
'

test_expect_success 'status should be "up-to-date" after update' '
        git submodule status >list &&
        grep "^ $rev1" list
'

test_expect_success 'checkout superproject with subproject already present' '
        git checkout initial &&
        git checkout master
'

test_expect_success 'apply submodule diff' '
        >empty &&

        git branch second &&
        (
                cd init &&
                echo s >s &&
                git add s &&
                git commit -m "change subproject"
        ) &&
        git update-index --add init &&
        git commit -m "change init" &&
        git format-patch -1 --stdout >P.diff &&
        git checkout second &&
        git apply --index P.diff &&

        git diff --cached master >staged &&
        test_cmp empty staged
'

test_expect_success 'update --init' '
        mv init init2 &&
        git config -f .gitmodules submodule.example.url "$(pwd)/init2" &&
        git config --remove-section submodule.example &&
        test_must_fail git config submodule.example.url &&

        git submodule update init 2> update.out &&
        cat update.out &&
        test_i18ngrep "not initialized" update.out &&
        test_must_fail git rev-parse --resolve-git-dir init/.git &&

        git submodule update --init init &&
        git rev-parse --resolve-git-dir init/.git
'

test_expect_success 'update --init from subdirectory' '
        mv init init2 &&
        git config -f .gitmodules submodule.example.url "$(pwd)/init2" &&
        git config --remove-section submodule.example &&
        test_must_fail git config submodule.example.url &&

        mkdir -p sub &&
        (
                cd sub &&
                git submodule update ../init 2>update.out &&
                cat update.out &&
                test_i18ngrep "not initialized" update.out &&
                test_must_fail git rev-parse --resolve-git-dir ../init/.git &&

                git submodule update --init ../init
        ) &&
        git rev-parse --resolve-git-dir init/.git
'

test_expect_success 'do not add files from a submodule' '

        git reset --hard &&
        test_must_fail git add init/a

'

test_expect_success 'gracefully add/reset submodule with a trailing slash' '

        git reset --hard &&
        git commit -m "commit subproject" init &&
        (cd init &&
         echo b > a) &&
        git add init/ &&
        git diff --exit-code --cached init &&
        commit=$(cd init &&
         git commit -m update a >/dev/null &&
         git rev-parse HEAD) &&
        git add init/ &&
        test_must_fail git diff --exit-code --cached init &&
        test $commit = $(git ls-files --stage |
                sed -n "s/^160000 \([^ ]*\).*/\1/p") &&
        git reset init/ &&
        git diff --exit-code --cached init

'

test_expect_success 'ls-files gracefully handles trailing slash' '

        test "init" = "$(git ls-files init/)"

'

test_expect_success 'moving to a commit without submodule does not leave empty dir' '
        rm -rf init &&
        mkdir init &&
        git reset --hard &&
        git checkout initial &&
        test ! -d init &&
        git checkout second
'

test_expect_success 'submodule <invalid-subcommand> fails' '
        test_must_fail git submodule no-such-subcommand
'

test_expect_success 'add submodules without specifying an explicit path' '
        mkdir repo &&
        (
                cd repo &&
                git init &&
                echo r >r &&
                git add r &&
                git commit -m "repo commit 1"
        ) &&
        git clone --bare repo/ bare.git &&
        (
                cd addtest &&
                git submodule add "$submodurl/repo" &&
                git config -f .gitmodules submodule.repo.path repo &&
                git submodule add "$submodurl/bare.git" &&
                git config -f .gitmodules submodule.bare.path bare
        )
'

test_expect_success 'add should fail when path is used by a file' '
        (
                cd addtest &&
                touch file &&
                test_must_fail  git submodule add "$submodurl/repo" file
        )
'

test_expect_success 'add should fail when path is used by an existing directory' '
        (
                cd addtest &&
                mkdir empty-dir &&
                test_must_fail git submodule add "$submodurl/repo" empty-dir
        )
'

test_expect_success 'use superproject as upstream when path is relative and no url is set there' '
        (
                cd addtest &&
                git submodule add ../repo relative &&
                test "$(git config -f .gitmodules submodule.relative.url)" = ../repo &&
                git submodule sync relative &&
                test "$(git config submodule.relative.url)" = "$submodurl/repo"
        )
'

test_expect_success 'set up for relative path tests' '
        mkdir reltest &&
        (
                cd reltest &&
                git init &&
                mkdir sub &&
                (
                        cd sub &&
                        git init &&
                        test_commit foo
                ) &&
                git add sub &&
                git config -f .gitmodules submodule.sub.path sub &&
                git config -f .gitmodules submodule.sub.url ../subrepo &&
                cp .git/config pristine-.git-config &&
                cp .gitmodules pristine-.gitmodules
        )
'

test_expect_success '../subrepo works with URL - ssh://hostname/repo' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url ssh://hostname/repo &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = ssh://hostname/subrepo
        )
'

test_expect_success '../subrepo works with port-qualified URL - ssh://hostname:22/repo' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url ssh://hostname:22/repo &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = ssh://hostname:22/subrepo
        )
'

# About the choice of the path in the next test:
# - double-slash side-steps path mangling issues on Windows
# - it is still an absolute local path
# - there cannot be a server with a blank in its name just in case the
#   path is used erroneously to access a //server/share style path
test_expect_success '../subrepo path works with local path - //somewhere else/repo' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url "//somewhere else/repo" &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = "//somewhere else/subrepo"
        )
'

test_expect_success '../subrepo works with file URL - file:///tmp/repo' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url file:///tmp/repo &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = file:///tmp/subrepo
        )
'

test_expect_success '../subrepo works with helper URL- helper:://hostname/repo' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url helper:://hostname/repo &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = helper:://hostname/subrepo
        )
'

test_expect_success '../subrepo works with scp-style URL - user@host:repo' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                git config remote.origin.url user@host:repo &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = user@host:subrepo
        )
'

test_expect_success '../subrepo works with scp-style URL - user@host:path/to/repo' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url user@host:path/to/repo &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = user@host:path/to/subrepo
        )
'

test_expect_success '../subrepo works with relative local path - foo' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url foo &&
                # actual: fails with an error
                git submodule init &&
                test "$(git config submodule.sub.url)" = subrepo
        )
'

test_expect_success '../subrepo works with relative local path - foo/bar' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url foo/bar &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = foo/subrepo
        )
'

test_expect_success '../subrepo works with relative local path - ./foo' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url ./foo &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = subrepo
        )
'

test_expect_success '../subrepo works with relative local path - ./foo/bar' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url ./foo/bar &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = foo/subrepo
        )
'

test_expect_success '../subrepo works with relative local path - ../foo' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url ../foo &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = ../subrepo
        )
'

test_expect_success '../subrepo works with relative local path - ../foo/bar' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                git config remote.origin.url ../foo/bar &&
                git submodule init &&
                test "$(git config submodule.sub.url)" = ../foo/subrepo
        )
'

test_expect_success '../bar/a/b/c works with relative local path - ../foo/bar.git' '
        (
                cd reltest &&
                cp pristine-.git-config .git/config &&
                cp pristine-.gitmodules .gitmodules &&
                mkdir -p a/b/c &&
                (cd a/b/c; git init) &&
                git config remote.origin.url ../foo/bar.git &&
                git submodule add ../bar/a/b/c ./a/b/c &&
                git submodule init &&
                test "$(git config submodule.a/b/c.url)" = ../foo/bar/a/b/c
        )
'

test_expect_success 'moving the superproject does not break submodules' '
        (
                cd addtest &&
                git submodule status >expect
        ) &&
        mv addtest addtest2 &&
        (
                cd addtest2 &&
                git submodule status >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'submodule add --name allows to replace a submodule with another at the same path' '
        (
                cd addtest2 &&
                (
                        cd repo &&
                        echo "$submodurl/repo" >expect &&
                        git config remote.origin.url >actual &&
                        test_cmp expect actual &&
                        echo "gitdir: ../.git/modules/repo" >expect &&
                        test_cmp expect .git
                ) &&
                rm -rf repo &&
                git rm repo &&
                git submodule add -q --name repo_new "$submodurl/bare.git" repo >actual &&
                test_must_be_empty actual &&
                echo "gitdir: ../.git/modules/submod" >expect &&
                test_cmp expect submod/.git &&
                (
                        cd repo &&
                        echo "$submodurl/bare.git" >expect &&
                        git config remote.origin.url >actual &&
                        test_cmp expect actual &&
                        echo "gitdir: ../.git/modules/repo_new" >expect &&
                        test_cmp expect .git
                ) &&
                echo "repo" >expect &&
                test_must_fail git config -f .gitmodules submodule.repo.path &&
                git config -f .gitmodules submodule.repo_new.path >actual &&
                test_cmp expect actual&&
                echo "$submodurl/repo" >expect &&
                test_must_fail git config -f .gitmodules submodule.repo.url &&
                echo "$submodurl/bare.git" >expect &&
                git config -f .gitmodules submodule.repo_new.url >actual &&
                test_cmp expect actual &&
                echo "$submodurl/repo" >expect &&
                git config submodule.repo.url >actual &&
                test_cmp expect actual &&
                echo "$submodurl/bare.git" >expect &&
                git config submodule.repo_new.url >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'recursive relative submodules stay relative' '
        test_when_finished "rm -rf super clone2 subsub sub3" &&
        mkdir subsub &&
        (
                cd subsub &&
                git init &&
                >t &&
                git add t &&
                git commit -m "initial commit"
        ) &&
        mkdir sub3 &&
        (
                cd sub3 &&
                git init &&
                >t &&
                git add t &&
                git commit -m "initial commit" &&
                git submodule add ../subsub dirdir/subsub &&
                git commit -m "add submodule subsub"
        ) &&
        mkdir super &&
        (
                cd super &&
                git init &&
                >t &&
                git add t &&
                git commit -m "initial commit" &&
                git submodule add ../sub3 &&
                git commit -m "add submodule sub"
        ) &&
        git clone super clone2 &&
        (
                cd clone2 &&
                git submodule update --init --recursive &&
                echo "gitdir: ../.git/modules/sub3" >./sub3/.git_expect &&
                echo "gitdir: ../../../.git/modules/sub3/modules/dirdir/subsub" >./sub3/dirdir/subsub/.git_expect
        ) &&
        test_cmp clone2/sub3/.git_expect clone2/sub3/.git &&
        test_cmp clone2/sub3/dirdir/subsub/.git_expect clone2/sub3/dirdir/subsub/.git
'

test_expect_success 'submodule add with an existing name fails unless forced' '
        (
                cd addtest2 &&
                rm -rf repo &&
                git rm repo &&
                test_must_fail git submodule add -q --name repo_new "$submodurl/repo.git" repo &&
                test ! -d repo &&
                test_must_fail git config -f .gitmodules submodule.repo_new.path &&
                test_must_fail git config -f .gitmodules submodule.repo_new.url &&
                echo "$submodurl/bare.git" >expect &&
                git config submodule.repo_new.url >actual &&
                test_cmp expect actual &&
                git submodule add -f -q --name repo_new "$submodurl/repo.git" repo &&
                test -d repo &&
                echo "repo" >expect &&
                git config -f .gitmodules submodule.repo_new.path >actual &&
                test_cmp expect actual&&
                echo "$submodurl/repo.git" >expect &&
                git config -f .gitmodules submodule.repo_new.url >actual &&
                test_cmp expect actual &&
                echo "$submodurl/repo.git" >expect &&
                git config submodule.repo_new.url >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'set up a second submodule' '
        git submodule add ./init2 example2 &&
        git commit -m "submodule example2 added"
'

test_expect_success 'submodule deinit works on repository without submodules' '
        test_when_finished "rm -rf newdirectory" &&
        mkdir newdirectory &&
        (
                cd newdirectory &&
                git init &&
                >file &&
                git add file &&
                git commit -m "repo should not be empty" &&
                git submodule deinit . &&
                git submodule deinit --all
        )
'

test_expect_success 'submodule deinit should remove the whole submodule section from .git/config' '
        git config submodule.example.foo bar &&
        git config submodule.example2.frotz nitfol &&
        git submodule deinit init &&
        test -z "$(git config --get-regexp "submodule\.example\.")" &&
        test -n "$(git config --get-regexp "submodule\.example2\.")" &&
        test -f example2/.git &&
        rmdir init
'

test_expect_success 'submodule deinit from subdirectory' '
        git submodule update --init &&
        git config submodule.example.foo bar &&
        mkdir -p sub &&
        (
                cd sub &&
                git submodule deinit ../init >../output
        ) &&
        test_i18ngrep "\\.\\./init" output &&
        test -z "$(git config --get-regexp "submodule\.example\.")" &&
        test -n "$(git config --get-regexp "submodule\.example2\.")" &&
        test -f example2/.git &&
        rmdir init
'

test_expect_success 'submodule deinit . deinits all initialized submodules' '
        git submodule update --init &&
        git config submodule.example.foo bar &&
        git config submodule.example2.frotz nitfol &&
        test_must_fail git submodule deinit &&
        git submodule deinit . >actual &&
        test -z "$(git config --get-regexp "submodule\.example\.")" &&
        test -z "$(git config --get-regexp "submodule\.example2\.")" &&
        test_i18ngrep "Cleared directory .init" actual &&
        test_i18ngrep "Cleared directory .example2" actual &&
        rmdir init example2
'

test_expect_success 'submodule deinit --all deinits all initialized submodules' '
        git submodule update --init &&
        git config submodule.example.foo bar &&
        git config submodule.example2.frotz nitfol &&
        test_must_fail git submodule deinit &&
        git submodule deinit --all >actual &&
        test -z "$(git config --get-regexp "submodule\.example\.")" &&
        test -z "$(git config --get-regexp "submodule\.example2\.")" &&
        test_i18ngrep "Cleared directory .init" actual &&
        test_i18ngrep "Cleared directory .example2" actual &&
        rmdir init example2
'

test_expect_success 'submodule deinit deinits a submodule when its work tree is missing or empty' '
        git submodule update --init &&
        rm -rf init example2/* example2/.git &&
        git submodule deinit init example2 >actual &&
        test -z "$(git config --get-regexp "submodule\.example\.")" &&
        test -z "$(git config --get-regexp "submodule\.example2\.")" &&
        test_i18ngrep ! "Cleared directory .init" actual &&
        test_i18ngrep "Cleared directory .example2" actual &&
        rmdir init
'

test_expect_success 'submodule deinit fails when the submodule contains modifications unless forced' '
        git submodule update --init &&
        echo X >>init/s &&
        test_must_fail git submodule deinit init &&
        test -n "$(git config --get-regexp "submodule\.example\.")" &&
        test -f example2/.git &&
        git submodule deinit -f init >actual &&
        test -z "$(git config --get-regexp "submodule\.example\.")" &&
        test_i18ngrep "Cleared directory .init" actual &&
        rmdir init
'

test_expect_success 'submodule deinit fails when the submodule contains untracked files unless forced' '
        git submodule update --init &&
        echo X >>init/untracked &&
        test_must_fail git submodule deinit init &&
        test -n "$(git config --get-regexp "submodule\.example\.")" &&
        test -f example2/.git &&
        git submodule deinit -f init >actual &&
        test -z "$(git config --get-regexp "submodule\.example\.")" &&
        test_i18ngrep "Cleared directory .init" actual &&
        rmdir init
'

test_expect_success 'submodule deinit fails when the submodule HEAD does not match unless forced' '
        git submodule update --init &&
        (
                cd init &&
                git checkout HEAD^
        ) &&
        test_must_fail git submodule deinit init &&
        test -n "$(git config --get-regexp "submodule\.example\.")" &&
        test -f example2/.git &&
        git submodule deinit -f init >actual &&
        test -z "$(git config --get-regexp "submodule\.example\.")" &&
        test_i18ngrep "Cleared directory .init" actual &&
        rmdir init
'

test_expect_success 'submodule deinit is silent when used on an uninitialized submodule' '
        git submodule update --init &&
        git submodule deinit init >actual &&
        test_i18ngrep "Submodule .example. (.*) unregistered for path .init" actual &&
        test_i18ngrep "Cleared directory .init" actual &&
        git submodule deinit init >actual &&
        test_i18ngrep ! "Submodule .example. (.*) unregistered for path .init" actual &&
        test_i18ngrep "Cleared directory .init" actual &&
        git submodule deinit . >actual &&
        test_i18ngrep ! "Submodule .example. (.*) unregistered for path .init" actual &&
        test_i18ngrep "Submodule .example2. (.*) unregistered for path .example2" actual &&
        test_i18ngrep "Cleared directory .init" actual &&
        git submodule deinit . >actual &&
        test_i18ngrep ! "Submodule .example. (.*) unregistered for path .init" actual &&
        test_i18ngrep ! "Submodule .example2. (.*) unregistered for path .example2" actual &&
        test_i18ngrep "Cleared directory .init" actual &&
        git submodule deinit --all >actual &&
        test_i18ngrep ! "Submodule .example. (.*) unregistered for path .init" actual &&
        test_i18ngrep ! "Submodule .example2. (.*) unregistered for path .example2" actual &&
        test_i18ngrep "Cleared directory .init" actual &&
        rmdir init example2
'

test_expect_success 'submodule deinit fails when submodule has a .git directory even when forced' '
        git submodule update --init &&
        (
                cd init &&
                rm .git &&
                cp -R ../.git/modules/example .git &&
                GIT_WORK_TREE=. git config --unset core.worktree
        ) &&
        test_must_fail git submodule deinit init &&
        test_must_fail git submodule deinit -f init &&
        test -d init/.git &&
        test -n "$(git config --get-regexp "submodule\.example\.")"
'

test_expect_success 'submodule with UTF-8 name' '
        svname=$(printf "\303\245 \303\244\303\266") &&
        mkdir "$svname" &&
        (
                cd "$svname" &&
                git init &&
                >sub &&
                git add sub &&
                git commit -m "init sub"
        ) &&
        git submodule add ./"$svname" &&
        git submodule >&2 &&
        test -n "$(git submodule | grep "$svname")"
'

test_expect_success 'submodule add clone shallow submodule' '
        mkdir super &&
        pwd=$(pwd) &&
        (
                cd super &&
                git init &&
                git submodule add --depth=1 file://"$pwd"/example2 submodule &&
                (
                        cd submodule &&
                        test 1 = $(git log --oneline | wc -l)
                )
        )
'

test_expect_success 'submodule helper list is not confused by common prefixes' '
        mkdir -p dir1/b &&
        (
                cd dir1/b &&
                git init &&
                echo hi >testfile2 &&
                git add . &&
                git commit -m "test1"
        ) &&
        mkdir -p dir2/b &&
        (
                cd dir2/b &&
                git init &&
                echo hello >testfile1 &&
                git add .  &&
                git commit -m "test2"
        ) &&
        git submodule add /dir1/b dir1/b &&
        git submodule add /dir2/b dir2/b &&
        git commit -m "first submodule commit" &&
        git submodule--helper list dir1/b |cut -c51- >actual &&
        echo "dir1/b" >expect &&
        test_cmp expect actual
'

test_expect_success 'setup superproject with submodules' '
        git init sub1 &&
        test_commit -C sub1 test &&
        test_commit -C sub1 test2 &&
        git init multisuper &&
        git -C multisuper submodule add ../sub1 sub0 &&
        git -C multisuper submodule add ../sub1 sub1 &&
        git -C multisuper submodule add ../sub1 sub2 &&
        git -C multisuper submodule add ../sub1 sub3 &&
        git -C multisuper commit -m "add some submodules"
'

cat >expect <<-EOF
-sub0
 sub1 (test2)
 sub2 (test2)
 sub3 (test2)
EOF

test_expect_success 'submodule update --init with a specification' '
        test_when_finished "rm -rf multisuper_clone" &&
        pwd=$(pwd) &&
        git clone file://"$pwd"/multisuper multisuper_clone &&
        git -C multisuper_clone submodule update --init . ":(exclude)sub0" &&
        git -C multisuper_clone submodule status |cut -c 1,43- >actual &&
        test_cmp expect actual
'

test_expect_success 'submodule update --init with submodule.active set' '
        test_when_finished "rm -rf multisuper_clone" &&
        pwd=$(pwd) &&
        git clone file://"$pwd"/multisuper multisuper_clone &&
        git -C multisuper_clone config submodule.active "." &&
        git -C multisuper_clone config --add submodule.active ":(exclude)sub0" &&
        git -C multisuper_clone submodule update --init &&
        git -C multisuper_clone submodule status |cut -c 1,43- >actual &&
        test_cmp expect actual
'

test_expect_success 'submodule update and setting submodule.<name>.active' '
        test_when_finished "rm -rf multisuper_clone" &&
        pwd=$(pwd) &&
        git clone file://"$pwd"/multisuper multisuper_clone &&
        git -C multisuper_clone config --bool submodule.sub0.active "true" &&
        git -C multisuper_clone config --bool submodule.sub1.active "false" &&
        git -C multisuper_clone config --bool submodule.sub2.active "true" &&

        cat >expect <<-\EOF &&
         sub0 (test2)
        -sub1
         sub2 (test2)
        -sub3
        EOF
        git -C multisuper_clone submodule update &&
        git -C multisuper_clone submodule status |cut -c 1,43- >actual &&
        test_cmp expect actual
'

test_expect_success 'clone --recurse-submodules with a pathspec works' '
        test_when_finished "rm -rf multisuper_clone" &&
        cat >expected <<-\EOF &&
         sub0 (test2)
        -sub1
        -sub2
        -sub3
        EOF

        git clone --recurse-submodules="sub0" multisuper multisuper_clone &&
        git -C multisuper_clone submodule status |cut -c1,43- >actual &&
        test_cmp actual expected
'

test_expect_success 'clone with multiple --recurse-submodules options' '
        test_when_finished "rm -rf multisuper_clone" &&
        cat >expect <<-\EOF &&
        -sub0
         sub1 (test2)
        -sub2
         sub3 (test2)
        EOF

        git clone --recurse-submodules="." \
                  --recurse-submodules=":(exclude)sub0" \
                  --recurse-submodules=":(exclude)sub2" \
                  multisuper multisuper_clone &&
        git -C multisuper_clone submodule status |cut -c1,43- >actual &&
        test_cmp expect actual
'

test_expect_success 'clone and subsequent updates correctly auto-initialize submodules' '
        test_when_finished "rm -rf multisuper_clone" &&
        cat <<-\EOF >expect &&
        -sub0
         sub1 (test2)
        -sub2
         sub3 (test2)
        EOF

        cat <<-\EOF >expect2 &&
        -sub0
         sub1 (test2)
        -sub2
         sub3 (test2)
        -sub4
         sub5 (test2)
        EOF

        git clone --recurse-submodules="." \
                  --recurse-submodules=":(exclude)sub0" \
                  --recurse-submodules=":(exclude)sub2" \
                  --recurse-submodules=":(exclude)sub4" \
                  multisuper multisuper_clone &&

        git -C multisuper_clone submodule status |cut -c1,43- >actual &&
        test_cmp expect actual &&

        git -C multisuper submodule add ../sub1 sub4 &&
        git -C multisuper submodule add ../sub1 sub5 &&
        git -C multisuper commit -m "add more submodules" &&
        # obtain the new superproject
        git -C multisuper_clone pull &&
        git -C multisuper_clone submodule update --init &&
        git -C multisuper_clone submodule status |cut -c1,43- >actual &&
        test_cmp expect2 actual
'

test_expect_success 'init properly sets the config' '
        test_when_finished "rm -rf multisuper_clone" &&
        git clone --recurse-submodules="." \
                  --recurse-submodules=":(exclude)sub0" \
                  multisuper multisuper_clone &&

        git -C multisuper_clone submodule init -- sub0 sub1 &&
        git -C multisuper_clone config --get submodule.sub0.active &&
        test_must_fail git -C multisuper_clone config --get submodule.sub1.active
'

test_done