#!/bin/sh

test_description='Basic fetch/push functionality.

This test checks the following functionality:

* command-line syntax
* refspecs
* fast-forward detection, and overriding it
* configuration
* hooks
* --porcelain output format
* hiderefs
* reflogs
'

. ./test-lib.sh

D=$(pwd)

mk_empty () {
        repo_name="$1"
        rm -fr "$repo_name" &&
        mkdir "$repo_name" &&
        (
                cd "$repo_name" &&
                git init &&
                git config receive.denyCurrentBranch warn &&
                mv .git/hooks .git/hooks-disabled
        )
}

mk_test () {
        repo_name="$1"
        shift

        mk_empty "$repo_name" &&
        (
                for ref in "$@"
                do
                        git push "$repo_name" $the_first_commit:refs/$ref ||
                        exit
                done &&
                cd "$repo_name" &&
                for ref in "$@"
                do
                        echo "$the_first_commit" >expect &&
                        git show-ref -s --verify refs/$ref >actual &&
                        test_cmp expect actual ||
                        exit
                done &&
                git fsck --full
        )
}

mk_test_with_hooks() {
        repo_name=$1
        mk_test "$@" &&
        (
                cd "$repo_name" &&
                mkdir .git/hooks &&
                cd .git/hooks &&

                cat >pre-receive <<-'EOF' &&
                #!/bin/sh
                cat - >>pre-receive.actual
                EOF

                cat >update <<-'EOF' &&
                #!/bin/sh
                printf "%s %s %s\n" "$@" >>update.actual
                EOF

                cat >post-receive <<-'EOF' &&
                #!/bin/sh
                cat - >>post-receive.actual
                EOF

                cat >post-update <<-'EOF' &&
                #!/bin/sh
                for ref in "$@"
                do
                        printf "%s\n" "$ref" >>post-update.actual
                done
                EOF

                chmod +x pre-receive update post-receive post-update
        )
}

mk_child() {
        rm -rf "$2" &&
        git clone "$1" "$2"
}

check_push_result () {
        test $# -ge 3 ||
        error "bug in the test script: check_push_result requires at least 3 parameters"

        repo_name="$1"
        shift

        (
                cd "$repo_name" &&
                echo "$1" >expect &&
                shift &&
                for ref in "$@"
                do
                        git show-ref -s --verify refs/$ref >actual &&
                        test_cmp expect actual ||
                        exit
                done &&
                git fsck --full
        )
}

test_expect_success setup '

        >path1 &&
        git add path1 &&
        test_tick &&
        git commit -a -m repo &&
        the_first_commit=$(git show-ref -s --verify refs/heads/master) &&

        >path2 &&
        git add path2 &&
        test_tick &&
        git commit -a -m second &&
        the_commit=$(git show-ref -s --verify refs/heads/master)

'

test_expect_success 'fetch without wildcard' '
        mk_empty testrepo &&
        (
                cd testrepo &&
                git fetch .. refs/heads/master:refs/remotes/origin/master &&

                echo "$the_commit commit        refs/remotes/origin/master" >expect &&
                git for-each-ref refs/remotes/origin >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'fetch with wildcard' '
        mk_empty testrepo &&
        (
                cd testrepo &&
                git config remote.up.url .. &&
                git config remote.up.fetch "refs/heads/*:refs/remotes/origin/*" &&
                git fetch up &&

                echo "$the_commit commit        refs/remotes/origin/master" >expect &&
                git for-each-ref refs/remotes/origin >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'fetch with insteadOf' '
        mk_empty testrepo &&
        (
                TRASH=$(pwd)/ &&
                cd testrepo &&
                git config "url.$TRASH.insteadOf" trash/ &&
                git config remote.up.url trash/. &&
                git config remote.up.fetch "refs/heads/*:refs/remotes/origin/*" &&
                git fetch up &&

                echo "$the_commit commit        refs/remotes/origin/master" >expect &&
                git for-each-ref refs/remotes/origin >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'fetch with pushInsteadOf (should not rewrite)' '
        mk_empty testrepo &&
        (
                TRASH=$(pwd)/ &&
                cd testrepo &&
                git config "url.trash/.pushInsteadOf" "$TRASH" &&
                git config remote.up.url "$TRASH." &&
                git config remote.up.fetch "refs/heads/*:refs/remotes/origin/*" &&
                git fetch up &&

                echo "$the_commit commit        refs/remotes/origin/master" >expect &&
                git for-each-ref refs/remotes/origin >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'push without wildcard' '
        mk_empty testrepo &&

        git push testrepo refs/heads/master:refs/remotes/origin/master &&
        (
                cd testrepo &&
                echo "$the_commit commit        refs/remotes/origin/master" >expect &&
                git for-each-ref refs/remotes/origin >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'push with wildcard' '
        mk_empty testrepo &&

        git push testrepo "refs/heads/*:refs/remotes/origin/*" &&
        (
                cd testrepo &&
                echo "$the_commit commit        refs/remotes/origin/master" >expect &&
                git for-each-ref refs/remotes/origin >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'push with insteadOf' '
        mk_empty testrepo &&
        TRASH="$(pwd)/" &&
        test_config "url.$TRASH.insteadOf" trash/ &&
        git push trash/testrepo refs/heads/master:refs/remotes/origin/master &&
        (
                cd testrepo &&
                echo "$the_commit commit        refs/remotes/origin/master" >expect &&
                git for-each-ref refs/remotes/origin >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'push with pushInsteadOf' '
        mk_empty testrepo &&
        TRASH="$(pwd)/" &&
        test_config "url.$TRASH.pushInsteadOf" trash/ &&
        git push trash/testrepo refs/heads/master:refs/remotes/origin/master &&
        (
                cd testrepo &&
                echo "$the_commit commit        refs/remotes/origin/master" >expect &&
                git for-each-ref refs/remotes/origin >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'push with pushInsteadOf and explicit pushurl (pushInsteadOf should not rewrite)' '
        mk_empty testrepo &&
        test_config "url.trash2/.pushInsteadOf" testrepo/ &&
        test_config "url.trash3/.pushInsteadOf" trash/wrong &&
        test_config remote.r.url trash/wrong &&
        test_config remote.r.pushurl "testrepo/" &&
        git push r refs/heads/master:refs/remotes/origin/master &&
        (
                cd testrepo &&
                echo "$the_commit commit        refs/remotes/origin/master" >expect &&
                git for-each-ref refs/remotes/origin >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'push with matching heads' '

        mk_test testrepo heads/master &&
        git push testrepo : &&
        check_push_result testrepo $the_commit heads/master

'

test_expect_success 'push with matching heads on the command line' '

        mk_test testrepo heads/master &&
        git push testrepo : &&
        check_push_result testrepo $the_commit heads/master

'

test_expect_success 'failed (non-fast-forward) push with matching heads' '

        mk_test testrepo heads/master &&
        git push testrepo : &&
        git commit --amend -massaged &&
        test_must_fail git push testrepo &&
        check_push_result testrepo $the_commit heads/master &&
        git reset --hard $the_commit

'

test_expect_success 'push --force with matching heads' '

        mk_test testrepo heads/master &&
        git push testrepo : &&
        git commit --amend -massaged &&
        git push --force testrepo : &&
        ! check_push_result testrepo $the_commit heads/master &&
        git reset --hard $the_commit

'

test_expect_success 'push with matching heads and forced update' '

        mk_test testrepo heads/master &&
        git push testrepo : &&
        git commit --amend -massaged &&
        git push testrepo +: &&
        ! check_push_result testrepo $the_commit heads/master &&
        git reset --hard $the_commit

'

test_expect_success 'push with no ambiguity (1)' '

        mk_test testrepo heads/master &&
        git push testrepo master:master &&
        check_push_result testrepo $the_commit heads/master

'

test_expect_success 'push with no ambiguity (2)' '

        mk_test testrepo remotes/origin/master &&
        git push testrepo master:origin/master &&
        check_push_result testrepo $the_commit remotes/origin/master

'

test_expect_success 'push with colon-less refspec, no ambiguity' '

        mk_test testrepo heads/master heads/t/master &&
        git branch -f t/master master &&
        git push testrepo master &&
        check_push_result testrepo $the_commit heads/master &&
        check_push_result testrepo $the_first_commit heads/t/master

'

test_expect_success 'push with weak ambiguity (1)' '

        mk_test testrepo heads/master remotes/origin/master &&
        git push testrepo master:master &&
        check_push_result testrepo $the_commit heads/master &&
        check_push_result testrepo $the_first_commit remotes/origin/master

'

test_expect_success 'push with weak ambiguity (2)' '

        mk_test testrepo heads/master remotes/origin/master remotes/another/master &&
        git push testrepo master:master &&
        check_push_result testrepo $the_commit heads/master &&
        check_push_result testrepo $the_first_commit remotes/origin/master remotes/another/master

'

test_expect_success 'push with ambiguity' '

        mk_test testrepo heads/frotz tags/frotz &&
        test_must_fail git push testrepo master:frotz &&
        check_push_result testrepo $the_first_commit heads/frotz tags/frotz

'

test_expect_success 'push with colon-less refspec (1)' '

        mk_test testrepo heads/frotz tags/frotz &&
        git branch -f frotz master &&
        git push testrepo frotz &&
        check_push_result testrepo $the_commit heads/frotz &&
        check_push_result testrepo $the_first_commit tags/frotz

'

test_expect_success 'push with colon-less refspec (2)' '

        mk_test testrepo heads/frotz tags/frotz &&
        if git show-ref --verify -q refs/heads/frotz
        then
                git branch -D frotz
        fi &&
        git tag -f frotz &&
        git push -f testrepo frotz &&
        check_push_result testrepo $the_commit tags/frotz &&
        check_push_result testrepo $the_first_commit heads/frotz

'

test_expect_success 'push with colon-less refspec (3)' '

        mk_test testrepo &&
        if git show-ref --verify -q refs/tags/frotz
        then
                git tag -d frotz
        fi &&
        git branch -f frotz master &&
        git push testrepo frotz &&
        check_push_result testrepo $the_commit heads/frotz &&
        test 1 = $( cd testrepo && git show-ref | wc -l )
'

test_expect_success 'push with colon-less refspec (4)' '

        mk_test testrepo &&
        if git show-ref --verify -q refs/heads/frotz
        then
                git branch -D frotz
        fi &&
        git tag -f frotz &&
        git push testrepo frotz &&
        check_push_result testrepo $the_commit tags/frotz &&
        test 1 = $( cd testrepo && git show-ref | wc -l )

'

test_expect_success 'push head with non-existent, incomplete dest' '

        mk_test testrepo &&
        git push testrepo master:branch &&
        check_push_result testrepo $the_commit heads/branch

'

test_expect_success 'push tag with non-existent, incomplete dest' '

        mk_test testrepo &&
        git tag -f v1.0 &&
        git push testrepo v1.0:tag &&
        check_push_result testrepo $the_commit tags/tag

'

test_expect_success 'push sha1 with non-existent, incomplete dest' '

        mk_test testrepo &&
        test_must_fail git push testrepo $(git rev-parse master):foo

'

test_expect_success 'push ref expression with non-existent, incomplete dest' '

        mk_test testrepo &&
        test_must_fail git push testrepo master^:branch

'

test_expect_success 'push with HEAD' '

        mk_test testrepo heads/master &&
        git checkout master &&
        git push testrepo HEAD &&
        check_push_result testrepo $the_commit heads/master

'

test_expect_success 'push with HEAD nonexisting at remote' '

        mk_test testrepo heads/master &&
        git checkout -b local master &&
        git push testrepo HEAD &&
        check_push_result testrepo $the_commit heads/local
'

test_expect_success 'push with +HEAD' '

        mk_test testrepo heads/master &&
        git checkout master &&
        git branch -D local &&
        git checkout -b local &&
        git push testrepo master local &&
        check_push_result testrepo $the_commit heads/master &&
        check_push_result testrepo $the_commit heads/local &&

        # Without force rewinding should fail
        git reset --hard HEAD^ &&
        test_must_fail git push testrepo HEAD &&
        check_push_result testrepo $the_commit heads/local &&

        # With force rewinding should succeed
        git push testrepo +HEAD &&
        check_push_result testrepo $the_first_commit heads/local

'

test_expect_success 'push HEAD with non-existent, incomplete dest' '

        mk_test testrepo &&
        git checkout master &&
        git push testrepo HEAD:branch &&
        check_push_result testrepo $the_commit heads/branch

'

test_expect_success 'push with config remote.*.push = HEAD' '

        mk_test testrepo heads/local &&
        git checkout master &&
        git branch -f local $the_commit &&
        (
                cd testrepo &&
                git checkout local &&
                git reset --hard $the_first_commit
        ) &&
        test_config remote.there.url testrepo &&
        test_config remote.there.push HEAD &&
        test_config branch.master.remote there &&
        git push &&
        check_push_result testrepo $the_commit heads/master &&
        check_push_result testrepo $the_first_commit heads/local
'

test_expect_success 'push with remote.pushdefault' '
        mk_test up_repo heads/master &&
        mk_test down_repo heads/master &&
        test_config remote.up.url up_repo &&
        test_config remote.down.url down_repo &&
        test_config branch.master.remote up &&
        test_config remote.pushdefault down &&
        test_config push.default matching &&
        git push &&
        check_push_result up_repo $the_first_commit heads/master &&
        check_push_result down_repo $the_commit heads/master
'

test_expect_success 'push with config remote.*.pushurl' '

        mk_test testrepo heads/master &&
        git checkout master &&
        test_config remote.there.url test2repo &&
        test_config remote.there.pushurl testrepo &&
        git push there : &&
        check_push_result testrepo $the_commit heads/master
'

test_expect_success 'push with config branch.*.pushremote' '
        mk_test up_repo heads/master &&
        mk_test side_repo heads/master &&
        mk_test down_repo heads/master &&
        test_config remote.up.url up_repo &&
        test_config remote.pushdefault side_repo &&
        test_config remote.down.url down_repo &&
        test_config branch.master.remote up &&
        test_config branch.master.pushremote down &&
        test_config push.default matching &&
        git push &&
        check_push_result up_repo $the_first_commit heads/master &&
        check_push_result side_repo $the_first_commit heads/master &&
        check_push_result down_repo $the_commit heads/master
'

test_expect_success 'branch.*.pushremote config order is irrelevant' '
        mk_test one_repo heads/master &&
        mk_test two_repo heads/master &&
        test_config remote.one.url one_repo &&
        test_config remote.two.url two_repo &&
        test_config branch.master.pushremote two_repo &&
        test_config remote.pushdefault one_repo &&
        test_config push.default matching &&
        git push &&
        check_push_result one_repo $the_first_commit heads/master &&
        check_push_result two_repo $the_commit heads/master
'

test_expect_success 'push with dry-run' '

        mk_test testrepo heads/master &&
        old_commit=$(git -C testrepo show-ref -s --verify refs/heads/master) &&
        git push --dry-run testrepo : &&
        check_push_result testrepo $old_commit heads/master
'

test_expect_success 'push updates local refs' '

        mk_test testrepo heads/master &&
        mk_child testrepo child &&
        (
                cd child &&
                git pull .. master &&
                git push &&
                test $(git rev-parse master) = \
                        $(git rev-parse remotes/origin/master)
        )

'

test_expect_success 'push updates up-to-date local refs' '

        mk_test testrepo heads/master &&
        mk_child testrepo child1 &&
        mk_child testrepo child2 &&
        (cd child1 && git pull .. master && git push) &&
        (
                cd child2 &&
                git pull ../child1 master &&
                git push &&
                test $(git rev-parse master) = \
                        $(git rev-parse remotes/origin/master)
        )

'

test_expect_success 'push preserves up-to-date packed refs' '

        mk_test testrepo heads/master &&
        mk_child testrepo child &&
        (
                cd child &&
                git push &&
                ! test -f .git/refs/remotes/origin/master
        )

'

test_expect_success 'push does not update local refs on failure' '

        mk_test testrepo heads/master &&
        mk_child testrepo child &&
        mkdir testrepo/.git/hooks &&
        echo "#!/no/frobnication/today" >testrepo/.git/hooks/pre-receive &&
        chmod +x testrepo/.git/hooks/pre-receive &&
        (
                cd child &&
                git pull .. master &&
                test_must_fail git push &&
                test $(git rev-parse master) != \
                        $(git rev-parse remotes/origin/master)
        )

'

test_expect_success 'allow deleting an invalid remote ref' '

        mk_test testrepo heads/master &&
        rm -f testrepo/.git/objects/??/* &&
        git push testrepo :refs/heads/master &&
        (cd testrepo && test_must_fail git rev-parse --verify refs/heads/master)

'

test_expect_success 'pushing valid refs triggers post-receive and post-update hooks' '
        mk_test_with_hooks testrepo heads/master heads/next &&
        orgmaster=$(cd testrepo && git show-ref -s --verify refs/heads/master) &&
        newmaster=$(git show-ref -s --verify refs/heads/master) &&
        orgnext=$(cd testrepo && git show-ref -s --verify refs/heads/next) &&
        newnext=$ZERO_OID &&
        git push testrepo refs/heads/master:refs/heads/master :refs/heads/next &&
        (
                cd testrepo/.git &&
                cat >pre-receive.expect <<-EOF &&
                $orgmaster $newmaster refs/heads/master
                $orgnext $newnext refs/heads/next
                EOF

                cat >update.expect <<-EOF &&
                refs/heads/master $orgmaster $newmaster
                refs/heads/next $orgnext $newnext
                EOF

                cat >post-receive.expect <<-EOF &&
                $orgmaster $newmaster refs/heads/master
                $orgnext $newnext refs/heads/next
                EOF

                cat >post-update.expect <<-EOF &&
                refs/heads/master
                refs/heads/next
                EOF

                test_cmp pre-receive.expect pre-receive.actual &&
                test_cmp update.expect update.actual &&
                test_cmp post-receive.expect post-receive.actual &&
                test_cmp post-update.expect post-update.actual
        )
'

test_expect_success 'deleting dangling ref triggers hooks with correct args' '
        mk_test_with_hooks testrepo heads/master &&
        rm -f testrepo/.git/objects/??/* &&
        git push testrepo :refs/heads/master &&
        (
                cd testrepo/.git &&
                cat >pre-receive.expect <<-EOF &&
                $ZERO_OID $ZERO_OID refs/heads/master
                EOF

                cat >update.expect <<-EOF &&
                refs/heads/master $ZERO_OID $ZERO_OID
                EOF

                cat >post-receive.expect <<-EOF &&
                $ZERO_OID $ZERO_OID refs/heads/master
                EOF

                cat >post-update.expect <<-EOF &&
                refs/heads/master
                EOF

                test_cmp pre-receive.expect pre-receive.actual &&
                test_cmp update.expect update.actual &&
                test_cmp post-receive.expect post-receive.actual &&
                test_cmp post-update.expect post-update.actual
        )
'

test_expect_success 'deletion of a non-existent ref is not fed to post-receive and post-update hooks' '
        mk_test_with_hooks testrepo heads/master &&
        orgmaster=$(cd testrepo && git show-ref -s --verify refs/heads/master) &&
        newmaster=$(git show-ref -s --verify refs/heads/master) &&
        git push testrepo master :refs/heads/nonexistent &&
        (
                cd testrepo/.git &&
                cat >pre-receive.expect <<-EOF &&
                $orgmaster $newmaster refs/heads/master
                $ZERO_OID $ZERO_OID refs/heads/nonexistent
                EOF

                cat >update.expect <<-EOF &&
                refs/heads/master $orgmaster $newmaster
                refs/heads/nonexistent $ZERO_OID $ZERO_OID
                EOF

                cat >post-receive.expect <<-EOF &&
                $orgmaster $newmaster refs/heads/master
                EOF

                cat >post-update.expect <<-EOF &&
                refs/heads/master
                EOF

                test_cmp pre-receive.expect pre-receive.actual &&
                test_cmp update.expect update.actual &&
                test_cmp post-receive.expect post-receive.actual &&
                test_cmp post-update.expect post-update.actual
        )
'

test_expect_success 'deletion of a non-existent ref alone does trigger post-receive and post-update hooks' '
        mk_test_with_hooks testrepo heads/master &&
        git push testrepo :refs/heads/nonexistent &&
        (
                cd testrepo/.git &&
                cat >pre-receive.expect <<-EOF &&
                $ZERO_OID $ZERO_OID refs/heads/nonexistent
                EOF

                cat >update.expect <<-EOF &&
                refs/heads/nonexistent $ZERO_OID $ZERO_OID
                EOF

                test_cmp pre-receive.expect pre-receive.actual &&
                test_cmp update.expect update.actual &&
                test_path_is_missing post-receive.actual &&
                test_path_is_missing post-update.actual
        )
'

test_expect_success 'mixed ref updates, deletes, invalid deletes trigger hooks with correct input' '
        mk_test_with_hooks testrepo heads/master heads/next heads/pu &&
        orgmaster=$(cd testrepo && git show-ref -s --verify refs/heads/master) &&
        newmaster=$(git show-ref -s --verify refs/heads/master) &&
        orgnext=$(cd testrepo && git show-ref -s --verify refs/heads/next) &&
        newnext=$ZERO_OID &&
        orgpu=$(cd testrepo && git show-ref -s --verify refs/heads/pu) &&
        newpu=$(git show-ref -s --verify refs/heads/master) &&
        git push testrepo refs/heads/master:refs/heads/master \
            refs/heads/master:refs/heads/pu :refs/heads/next \
            :refs/heads/nonexistent &&
        (
                cd testrepo/.git &&
                cat >pre-receive.expect <<-EOF &&
                $orgmaster $newmaster refs/heads/master
                $orgnext $newnext refs/heads/next
                $orgpu $newpu refs/heads/pu
                $ZERO_OID $ZERO_OID refs/heads/nonexistent
                EOF

                cat >update.expect <<-EOF &&
                refs/heads/master $orgmaster $newmaster
                refs/heads/next $orgnext $newnext
                refs/heads/pu $orgpu $newpu
                refs/heads/nonexistent $ZERO_OID $ZERO_OID
                EOF

                cat >post-receive.expect <<-EOF &&
                $orgmaster $newmaster refs/heads/master
                $orgnext $newnext refs/heads/next
                $orgpu $newpu refs/heads/pu
                EOF

                cat >post-update.expect <<-EOF &&
                refs/heads/master
                refs/heads/next
                refs/heads/pu
                EOF

                test_cmp pre-receive.expect pre-receive.actual &&
                test_cmp update.expect update.actual &&
                test_cmp post-receive.expect post-receive.actual &&
                test_cmp post-update.expect post-update.actual
        )
'

test_expect_success 'allow deleting a ref using --delete' '
        mk_test testrepo heads/master &&
        (cd testrepo && git config receive.denyDeleteCurrent warn) &&
        git push testrepo --delete master &&
        (cd testrepo && test_must_fail git rev-parse --verify refs/heads/master)
'

test_expect_success 'allow deleting a tag using --delete' '
        mk_test testrepo heads/master &&
        git tag -a -m dummy_message deltag heads/master &&
        git push testrepo --tags &&
        (cd testrepo && git rev-parse --verify -q refs/tags/deltag) &&
        git push testrepo --delete tag deltag &&
        (cd testrepo && test_must_fail git rev-parse --verify refs/tags/deltag)
'

test_expect_success 'push --delete without args aborts' '
        mk_test testrepo heads/master &&
        test_must_fail git push testrepo --delete
'

test_expect_success 'push --delete refuses src:dest refspecs' '
        mk_test testrepo heads/master &&
        test_must_fail git push testrepo --delete master:foo
'

test_expect_success 'warn on push to HEAD of non-bare repository' '
        mk_test testrepo heads/master &&
        (
                cd testrepo &&
                git checkout master &&
                git config receive.denyCurrentBranch warn
        ) &&
        git push testrepo master 2>stderr &&
        grep "warning: updating the current branch" stderr
'

test_expect_success 'deny push to HEAD of non-bare repository' '
        mk_test testrepo heads/master &&
        (
                cd testrepo &&
                git checkout master &&
                git config receive.denyCurrentBranch true
        ) &&
        test_must_fail git push testrepo master
'

test_expect_success 'allow push to HEAD of bare repository (bare)' '
        mk_test testrepo heads/master &&
        (
                cd testrepo &&
                git checkout master &&
                git config receive.denyCurrentBranch true &&
                git config core.bare true
        ) &&
        git push testrepo master 2>stderr &&
        ! grep "warning: updating the current branch" stderr
'

test_expect_success 'allow push to HEAD of non-bare repository (config)' '
        mk_test testrepo heads/master &&
        (
                cd testrepo &&
                git checkout master &&
                git config receive.denyCurrentBranch false
        ) &&
        git push testrepo master 2>stderr &&
        ! grep "warning: updating the current branch" stderr
'

test_expect_success 'fetch with branches' '
        mk_empty testrepo &&
        git branch second $the_first_commit &&
        git checkout second &&
        echo ".." > testrepo/.git/branches/branch1 &&
        (
                cd testrepo &&
                git fetch branch1 &&
                echo "$the_commit commit        refs/heads/branch1" >expect &&
                git for-each-ref refs/heads >actual &&
                test_cmp expect actual
        ) &&
        git checkout master
'

test_expect_success 'fetch with branches containing #' '
        mk_empty testrepo &&
        echo "..#second" > testrepo/.git/branches/branch2 &&
        (
                cd testrepo &&
                git fetch branch2 &&
                echo "$the_first_commit commit  refs/heads/branch2" >expect &&
                git for-each-ref refs/heads >actual &&
                test_cmp expect actual
        ) &&
        git checkout master
'

test_expect_success 'push with branches' '
        mk_empty testrepo &&
        git checkout second &&
        echo "testrepo" > .git/branches/branch1 &&
        git push branch1 &&
        (
                cd testrepo &&
                echo "$the_first_commit commit  refs/heads/master" >expect &&
                git for-each-ref refs/heads >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'push with branches containing #' '
        mk_empty testrepo &&
        echo "testrepo#branch3" > .git/branches/branch2 &&
        git push branch2 &&
        (
                cd testrepo &&
                echo "$the_first_commit commit  refs/heads/branch3" >expect &&
                git for-each-ref refs/heads >actual &&
                test_cmp expect actual
        ) &&
        git checkout master
'

test_expect_success 'push into aliased refs (consistent)' '
        mk_test testrepo heads/master &&
        mk_child testrepo child1 &&
        mk_child testrepo child2 &&
        (
                cd child1 &&
                git branch foo &&
                git symbolic-ref refs/heads/bar refs/heads/foo
                git config receive.denyCurrentBranch false
        ) &&
        (
                cd child2 &&
                >path2 &&
                git add path2 &&
                test_tick &&
                git commit -a -m child2 &&
                git branch foo &&
                git branch bar &&
                git push ../child1 foo bar
        )
'

test_expect_success 'push into aliased refs (inconsistent)' '
        mk_test testrepo heads/master &&
        mk_child testrepo child1 &&
        mk_child testrepo child2 &&
        (
                cd child1 &&
                git branch foo &&
                git symbolic-ref refs/heads/bar refs/heads/foo
                git config receive.denyCurrentBranch false
        ) &&
        (
                cd child2 &&
                >path2 &&
                git add path2 &&
                test_tick &&
                git commit -a -m child2 &&
                git branch foo &&
                >path3 &&
                git add path3 &&
                test_tick &&
                git commit -a -m child2 &&
                git branch bar &&
                test_must_fail git push ../child1 foo bar 2>stderr &&
                grep "refusing inconsistent update" stderr
        )
'

test_expect_success 'push requires --force to update lightweight tag' '
        mk_test testrepo heads/master &&
        mk_child testrepo child1 &&
        mk_child testrepo child2 &&
        (
                cd child1 &&
                git tag testTag &&
                git push ../child2 testTag &&
                >file1 &&
                git add file1 &&
                git commit -m "file1" &&
                git tag -f testTag &&
                test_must_fail git push ../child2 testTag &&
                git push --force ../child2 testTag &&
                git tag -f testTag &&
                test_must_fail git push ../child2 testTag HEAD~ &&
                git push --force ../child2 testTag
        )
'

test_expect_success 'push --porcelain' '
        mk_empty testrepo &&
        echo >.git/foo  "To testrepo" &&
        echo >>.git/foo "*      refs/heads/master:refs/remotes/origin/master    [new branch]"  &&
        echo >>.git/foo "Done" &&
        git push >.git/bar --porcelain  testrepo refs/heads/master:refs/remotes/origin/master &&
        (
                cd testrepo &&
                echo "$the_commit commit        refs/remotes/origin/master" >expect &&
                git for-each-ref refs/remotes/origin >actual &&
                test_cmp expect actual
        ) &&
        test_cmp .git/foo .git/bar
'

test_expect_success 'push --porcelain bad url' '
        mk_empty testrepo &&
        test_must_fail git push >.git/bar --porcelain asdfasdfasd refs/heads/master:refs/remotes/origin/master &&
        ! grep -q Done .git/bar
'

test_expect_success 'push --porcelain rejected' '
        mk_empty testrepo &&
        git push testrepo refs/heads/master:refs/remotes/origin/master &&
        (cd testrepo &&
                git reset --hard origin/master^
                git config receive.denyCurrentBranch true) &&

        echo >.git/foo  "To testrepo"  &&
        echo >>.git/foo "!      refs/heads/master:refs/heads/master     [remote rejected] (branch is currently checked out)" &&

        test_must_fail git push >.git/bar --porcelain  testrepo refs/heads/master:refs/heads/master &&
        test_cmp .git/foo .git/bar
'

test_expect_success 'push --porcelain --dry-run rejected' '
        mk_empty testrepo &&
        git push testrepo refs/heads/master:refs/remotes/origin/master &&
        (cd testrepo &&
                git reset --hard origin/master
                git config receive.denyCurrentBranch true) &&

        echo >.git/foo  "To testrepo"  &&
        echo >>.git/foo "!      refs/heads/master^:refs/heads/master    [rejected] (non-fast-forward)" &&
        echo >>.git/foo "Done" &&

        test_must_fail git push >.git/bar --porcelain  --dry-run testrepo refs/heads/master^:refs/heads/master &&
        test_cmp .git/foo .git/bar
'

test_expect_success 'push --prune' '
        mk_test testrepo heads/master heads/second heads/foo heads/bar &&
        git push --prune testrepo : &&
        check_push_result testrepo $the_commit heads/master &&
        check_push_result testrepo $the_first_commit heads/second &&
        ! check_push_result testrepo $the_first_commit heads/foo heads/bar
'

test_expect_success 'push --prune refspec' '
        mk_test testrepo tmp/master tmp/second tmp/foo tmp/bar &&
        git push --prune testrepo "refs/heads/*:refs/tmp/*" &&
        check_push_result testrepo $the_commit tmp/master &&
        check_push_result testrepo $the_first_commit tmp/second &&
        ! check_push_result testrepo $the_first_commit tmp/foo tmp/bar
'

for configsection in transfer receive
do
        test_expect_success "push to update a ref hidden by $configsection.hiderefs" '
                mk_test testrepo heads/master hidden/one hidden/two hidden/three &&
                (
                        cd testrepo &&
                        git config $configsection.hiderefs refs/hidden
                ) &&

                # push to unhidden ref succeeds normally
                git push testrepo master:refs/heads/master &&
                check_push_result testrepo $the_commit heads/master &&

                # push to update a hidden ref should fail
                test_must_fail git push testrepo master:refs/hidden/one &&
                check_push_result testrepo $the_first_commit hidden/one &&

                # push to delete a hidden ref should fail
                test_must_fail git push testrepo :refs/hidden/two &&
                check_push_result testrepo $the_first_commit hidden/two &&

                # idempotent push to update a hidden ref should fail
                test_must_fail git push testrepo $the_first_commit:refs/hidden/three &&
                check_push_result testrepo $the_first_commit hidden/three
        '
done

test_expect_success 'fetch exact SHA1' '
        mk_test testrepo heads/master hidden/one &&
        git push testrepo master:refs/hidden/one &&
        (
                cd testrepo &&
                git config transfer.hiderefs refs/hidden
        ) &&
        check_push_result testrepo $the_commit hidden/one &&

        mk_child testrepo child &&
        (
                cd child &&

                # make sure $the_commit does not exist here
                git repack -a -d &&
                git prune &&
                test_must_fail git cat-file -t $the_commit &&

                # fetching the hidden object should fail by default
                test_must_fail git fetch -v ../testrepo $the_commit:refs/heads/copy 2>err &&
                test_i18ngrep "Server does not allow request for unadvertised object" err &&
                test_must_fail git rev-parse --verify refs/heads/copy &&

                # the server side can allow it to succeed
                (
                        cd ../testrepo &&
                        git config uploadpack.allowtipsha1inwant true
                ) &&

                git fetch -v ../testrepo $the_commit:refs/heads/copy master:refs/heads/extra &&
                cat >expect <<-EOF &&
                $the_commit
                $the_first_commit
                EOF
                {
                        git rev-parse --verify refs/heads/copy &&
                        git rev-parse --verify refs/heads/extra
                } >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'fetch exact SHA1 in protocol v2' '
        mk_test testrepo heads/master hidden/one &&
        git push testrepo master:refs/hidden/one &&
        git -C testrepo config transfer.hiderefs refs/hidden &&
        check_push_result testrepo $the_commit hidden/one &&

        mk_child testrepo child &&
        git -C child config protocol.version 2 &&

        # make sure $the_commit does not exist here
        git -C child repack -a -d &&
        git -C child prune &&
        test_must_fail git -C child cat-file -t $the_commit &&

        # fetching the hidden object succeeds by default
        # NEEDSWORK: should this match the v0 behavior instead?
        git -C child fetch -v ../testrepo $the_commit:refs/heads/copy
'

for configallowtipsha1inwant in true false
do
        test_expect_success "shallow fetch reachable SHA1 (but not a ref), allowtipsha1inwant=$configallowtipsha1inwant" '
                mk_empty testrepo &&
                (
                        cd testrepo &&
                        git config uploadpack.allowtipsha1inwant $configallowtipsha1inwant &&
                        git commit --allow-empty -m foo &&
                        git commit --allow-empty -m bar
                ) &&
                SHA1=$(git --git-dir=testrepo/.git rev-parse HEAD^) &&
                mk_empty shallow &&
                (
                        cd shallow &&
                        test_must_fail git fetch --depth=1 ../testrepo/.git $SHA1 &&
                        git --git-dir=../testrepo/.git config uploadpack.allowreachablesha1inwant true &&
                        git fetch --depth=1 ../testrepo/.git $SHA1 &&
                        git cat-file commit $SHA1
                )
        '

        test_expect_success "deny fetch unreachable SHA1, allowtipsha1inwant=$configallowtipsha1inwant" '
                mk_empty testrepo &&
                (
                        cd testrepo &&
                        git config uploadpack.allowtipsha1inwant $configallowtipsha1inwant &&
                        git commit --allow-empty -m foo &&
                        git commit --allow-empty -m bar &&
                        git commit --allow-empty -m xyz
                ) &&
                SHA1_1=$(git --git-dir=testrepo/.git rev-parse HEAD^^) &&
                SHA1_2=$(git --git-dir=testrepo/.git rev-parse HEAD^) &&
                SHA1_3=$(git --git-dir=testrepo/.git rev-parse HEAD) &&
                (
                        cd testrepo &&
                        git reset --hard $SHA1_2 &&
                        git cat-file commit $SHA1_1 &&
                        git cat-file commit $SHA1_3
                ) &&
                mk_empty shallow &&
                (
                        cd shallow &&
                        test_must_fail ok=sigpipe git fetch ../testrepo/.git $SHA1_3 &&
                        test_must_fail ok=sigpipe git fetch ../testrepo/.git $SHA1_1 &&
                        git --git-dir=../testrepo/.git config uploadpack.allowreachablesha1inwant true &&
                        git fetch ../testrepo/.git $SHA1_1 &&
                        git cat-file commit $SHA1_1 &&
                        test_must_fail git cat-file commit $SHA1_2 &&
                        git fetch ../testrepo/.git $SHA1_2 &&
                        git cat-file commit $SHA1_2 &&
                        test_must_fail ok=sigpipe git fetch ../testrepo/.git $SHA1_3
                )
        '
done

test_expect_success 'fetch follows tags by default' '
        mk_test testrepo heads/master &&
        rm -fr src dst &&
        git init src &&
        (
                cd src &&
                git pull ../testrepo master &&
                git tag -m "annotated" tag &&
                git for-each-ref >tmp1 &&
                (
                        cat tmp1
                        sed -n "s|refs/heads/master$|refs/remotes/origin/master|p" tmp1
                ) |
                sort -k 3 >../expect
        ) &&
        git init dst &&
        (
                cd dst &&
                git remote add origin ../src &&
                git config branch.master.remote origin &&
                git config branch.master.merge refs/heads/master &&
                git pull &&
                git for-each-ref >../actual
        ) &&
        test_cmp expect actual
'

test_expect_success 'pushing a specific ref applies remote.$name.push as refmap' '
        mk_test testrepo heads/master &&
        rm -fr src dst &&
        git init src &&
        git init --bare dst &&
        (
                cd src &&
                git pull ../testrepo master &&
                git branch next &&
                git config remote.dst.url ../dst &&
                git config remote.dst.push "+refs/heads/*:refs/remotes/src/*" &&
                git push dst master &&
                git show-ref refs/heads/master |
                sed -e "s|refs/heads/|refs/remotes/src/|" >../dst/expect
        ) &&
        (
                cd dst &&
                test_must_fail git show-ref refs/heads/next &&
                test_must_fail git show-ref refs/heads/master &&
                git show-ref refs/remotes/src/master >actual
        ) &&
        test_cmp dst/expect dst/actual
'

test_expect_success 'with no remote.$name.push, it is not used as refmap' '
        mk_test testrepo heads/master &&
        rm -fr src dst &&
        git init src &&
        git init --bare dst &&
        (
                cd src &&
                git pull ../testrepo master &&
                git branch next &&
                git config remote.dst.url ../dst &&
                git config push.default matching &&
                git push dst master &&
                git show-ref refs/heads/master >../dst/expect
        ) &&
        (
                cd dst &&
                test_must_fail git show-ref refs/heads/next &&
                git show-ref refs/heads/master >actual
        ) &&
        test_cmp dst/expect dst/actual
'

test_expect_success 'with no remote.$name.push, upstream mapping is used' '
        mk_test testrepo heads/master &&
        rm -fr src dst &&
        git init src &&
        git init --bare dst &&
        (
                cd src &&
                git pull ../testrepo master &&
                git branch next &&
                git config remote.dst.url ../dst &&
                git config remote.dst.fetch "+refs/heads/*:refs/remotes/dst/*" &&
                git config push.default upstream &&

                git config branch.master.merge refs/heads/trunk &&
                git config branch.master.remote dst &&

                git push dst master &&
                git show-ref refs/heads/master |
                sed -e "s|refs/heads/master|refs/heads/trunk|" >../dst/expect
        ) &&
        (
                cd dst &&
                test_must_fail git show-ref refs/heads/master &&
                test_must_fail git show-ref refs/heads/next &&
                git show-ref refs/heads/trunk >actual
        ) &&
        test_cmp dst/expect dst/actual
'

test_expect_success 'push does not follow tags by default' '
        mk_test testrepo heads/master &&
        rm -fr src dst &&
        git init src &&
        git init --bare dst &&
        (
                cd src &&
                git pull ../testrepo master &&
                git tag -m "annotated" tag &&
                git checkout -b another &&
                git commit --allow-empty -m "future commit" &&
                git tag -m "future" future &&
                git checkout master &&
                git for-each-ref refs/heads/master >../expect &&
                git push ../dst master
        ) &&
        (
                cd dst &&
                git for-each-ref >../actual
        ) &&
        test_cmp expect actual
'

test_expect_success 'push --follow-tag only pushes relevant tags' '
        mk_test testrepo heads/master &&
        rm -fr src dst &&
        git init src &&
        git init --bare dst &&
        (
                cd src &&
                git pull ../testrepo master &&
                git tag -m "annotated" tag &&
                git checkout -b another &&
                git commit --allow-empty -m "future commit" &&
                git tag -m "future" future &&
                git checkout master &&
                git for-each-ref refs/heads/master refs/tags/tag >../expect
                git push --follow-tag ../dst master
        ) &&
        (
                cd dst &&
                git for-each-ref >../actual
        ) &&
        test_cmp expect actual
'

test_expect_success 'push --no-thin must produce non-thin pack' '
        cat >>path1 <<\EOF &&
keep base version of path1 big enough, compared to the new changes
later, in order to pass size heuristics in
builtin/pack-objects.c:try_delta()
EOF
        git commit -am initial &&
        git init no-thin &&
        git --git-dir=no-thin/.git config receive.unpacklimit 0 &&
        git push no-thin/.git refs/heads/master:refs/heads/foo &&
        echo modified >> path1 &&
        git commit -am modified &&
        git repack -adf &&
        rcvpck="git receive-pack --reject-thin-pack-for-testing" &&
        git push --no-thin --receive-pack="$rcvpck" no-thin/.git refs/heads/master:refs/heads/foo
'

test_expect_success 'pushing a tag pushes the tagged object' '
        rm -rf dst.git &&
        blob=$(echo unreferenced | git hash-object -w --stdin) &&
        git tag -m foo tag-of-blob $blob &&
        git init --bare dst.git &&
        git push dst.git tag-of-blob &&
        # the receiving index-pack should have noticed
        # any problems, but we double check
        echo unreferenced >expect &&
        git --git-dir=dst.git cat-file blob tag-of-blob >actual &&
        test_cmp expect actual
'

test_expect_success 'push into bare respects core.logallrefupdates' '
        rm -rf dst.git &&
        git init --bare dst.git &&
        git -C dst.git config core.logallrefupdates true &&

        # double push to test both with and without
        # the actual pack transfer
        git push dst.git master:one &&
        echo "one@{0} push" >expect &&
        git -C dst.git log -g --format="%gd %gs" one >actual &&
        test_cmp expect actual &&

        git push dst.git master:two &&
        echo "two@{0} push" >expect &&
        git -C dst.git log -g --format="%gd %gs" two >actual &&
        test_cmp expect actual
'

test_expect_success 'fetch into bare respects core.logallrefupdates' '
        rm -rf dst.git &&
        git init --bare dst.git &&
        (
                cd dst.git &&
                git config core.logallrefupdates true &&

                # as above, we double-fetch to test both
                # with and without pack transfer
                git fetch .. master:one &&
                echo "one@{0} fetch .. master:one: storing head" >expect &&
                git log -g --format="%gd %gs" one >actual &&
                test_cmp expect actual &&

                git fetch .. master:two &&
                echo "two@{0} fetch .. master:two: storing head" >expect &&
                git log -g --format="%gd %gs" two >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'receive.denyCurrentBranch = updateInstead' '
        git push testrepo master &&
        (
                cd testrepo &&
                git reset --hard &&
                git config receive.denyCurrentBranch updateInstead
        ) &&
        test_commit third path2 &&

        # Try pushing into a repository with pristine working tree
        git push testrepo master &&
        (
                cd testrepo &&
                git update-index -q --refresh &&
                git diff-files --quiet -- &&
                git diff-index --quiet --cached HEAD -- &&
                test third = "$(cat path2)" &&
                test $(git -C .. rev-parse HEAD) = $(git rev-parse HEAD)
        ) &&

        # Try pushing into a repository with working tree needing a refresh
        (
                cd testrepo &&
                git reset --hard HEAD^ &&
                test $(git -C .. rev-parse HEAD^) = $(git rev-parse HEAD) &&
                test-tool chmtime +100 path1
        ) &&
        git push testrepo master &&
        (
                cd testrepo &&
                git update-index -q --refresh &&
                git diff-files --quiet -- &&
                git diff-index --quiet --cached HEAD -- &&
                test_cmp ../path1 path1 &&
                test third = "$(cat path2)" &&
                test $(git -C .. rev-parse HEAD) = $(git rev-parse HEAD)
        ) &&

        # Update what is to be pushed
        test_commit fourth path2 &&

        # Try pushing into a repository with a dirty working tree
        # (1) the working tree updated
        (
                cd testrepo &&
                echo changed >path1
        ) &&
        test_must_fail git push testrepo master &&
        (
                cd testrepo &&
                test $(git -C .. rev-parse HEAD^) = $(git rev-parse HEAD) &&
                git diff --quiet --cached &&
                test changed = "$(cat path1)"
        ) &&

        # (2) the index updated
        (
                cd testrepo &&
                echo changed >path1 &&
                git add path1
        ) &&
        test_must_fail git push testrepo master &&
        (
                cd testrepo &&
                test $(git -C .. rev-parse HEAD^) = $(git rev-parse HEAD) &&
                git diff --quiet &&
                test changed = "$(cat path1)"
        ) &&

        # Introduce a new file in the update
        test_commit fifth path3 &&

        # (3) the working tree has an untracked file that would interfere
        (
                cd testrepo &&
                git reset --hard &&
                echo changed >path3
        ) &&
        test_must_fail git push testrepo master &&
        (
                cd testrepo &&
                test $(git -C .. rev-parse HEAD^^) = $(git rev-parse HEAD) &&
                git diff --quiet &&
                git diff --quiet --cached &&
                test changed = "$(cat path3)"
        ) &&

        # (4) the target changes to what gets pushed but it still is a change
        (
                cd testrepo &&
                git reset --hard &&
                echo fifth >path3 &&
                git add path3
        ) &&
        test_must_fail git push testrepo master &&
        (
                cd testrepo &&
                test $(git -C .. rev-parse HEAD^^) = $(git rev-parse HEAD) &&
                git diff --quiet &&
                test fifth = "$(cat path3)"
        ) &&

        # (5) push into void
        rm -fr void &&
        git init void &&
        (
                cd void &&
                git config receive.denyCurrentBranch updateInstead
        ) &&
        git push void master &&
        (
                cd void &&
                test $(git -C .. rev-parse master) = $(git rev-parse HEAD) &&
                git diff --quiet &&
                git diff --cached --quiet
        )
'

test_expect_success 'updateInstead with push-to-checkout hook' '
        rm -fr testrepo &&
        git init testrepo &&
        (
                cd testrepo &&
                git pull .. master &&
                git reset --hard HEAD^^ &&
                git tag initial &&
                git config receive.denyCurrentBranch updateInstead &&
                write_script .git/hooks/push-to-checkout <<-\EOF
                echo >&2 updating from $(git rev-parse HEAD)
                echo >&2 updating to "$1"

                git update-index -q --refresh &&
                git read-tree -u -m HEAD "$1" || {
                        status=$?
                        echo >&2 read-tree failed
                        exit $status
                }
                EOF
        ) &&

        # Try pushing into a pristine
        git push testrepo master &&
        (
                cd testrepo &&
                git diff --quiet &&
                git diff HEAD --quiet &&
                test $(git -C .. rev-parse HEAD) = $(git rev-parse HEAD)
        ) &&

        # Try pushing into a repository with conflicting change
        (
                cd testrepo &&
                git reset --hard initial &&
                echo conflicting >path2
        ) &&
        test_must_fail git push testrepo master &&
        (
                cd testrepo &&
                test $(git rev-parse initial) = $(git rev-parse HEAD) &&
                test conflicting = "$(cat path2)" &&
                git diff-index --quiet --cached HEAD
        ) &&

        # Try pushing into a repository with unrelated change
        (
                cd testrepo &&
                git reset --hard initial &&
                echo unrelated >path1 &&
                echo irrelevant >path5 &&
                git add path5
        ) &&
        git push testrepo master &&
        (
                cd testrepo &&
                test "$(cat path1)" = unrelated &&
                test "$(cat path5)" = irrelevant &&
                test "$(git diff --name-only --cached HEAD)" = path5 &&
                test $(git -C .. rev-parse HEAD) = $(git rev-parse HEAD)
        ) &&

        # push into void
        rm -fr void &&
        git init void &&
        (
                cd void &&
                git config receive.denyCurrentBranch updateInstead &&
                write_script .git/hooks/push-to-checkout <<-\EOF
                if git rev-parse --quiet --verify HEAD
                then
                        has_head=yes
                        echo >&2 updating from $(git rev-parse HEAD)
                else
                        has_head=no
                        echo >&2 pushing into void
                fi
                echo >&2 updating to "$1"

                git update-index -q --refresh &&
                case "$has_head" in
                yes)
                        git read-tree -u -m HEAD "$1" ;;
                no)
                        git read-tree -u -m "$1" ;;
                esac || {
                        status=$?
                        echo >&2 read-tree failed
                        exit $status
                }
                EOF
        ) &&

        git push void master &&
        (
                cd void &&
                git diff --quiet &&
                git diff --cached --quiet &&
                test $(git -C .. rev-parse HEAD) = $(git rev-parse HEAD)
        )
'

test_done