#!/bin/sh

test_description='test push with submodules'

. ./test-lib.sh

test_expect_success setup '
        mkdir pub.git &&
        GIT_DIR=pub.git git init --bare &&
        GIT_DIR=pub.git git config receive.fsckobjects true &&
        mkdir work &&
        (
                cd work &&
                git init &&
                git config push.default matching &&
                mkdir -p gar/bage &&
                (
                        cd gar/bage &&
                        git init &&
                        git config push.default matching &&
                        >junk &&
                        git add junk &&
                        git commit -m "Initial junk"
                ) &&
                git add gar/bage &&
                git commit -m "Initial superproject"
        )
'

test_expect_success 'push works with recorded gitlink' '
        (
                cd work &&
                git push ../pub.git master
        )
'

test_expect_success 'push if submodule has no remote' '
        (
                cd work/gar/bage &&
                >junk2 &&
                git add junk2 &&
                git commit -m "Second junk"
        ) &&
        (
                cd work &&
                git add gar/bage &&
                git commit -m "Second commit for gar/bage" &&
                git push --recurse-submodules=check ../pub.git master
        )
'

test_expect_success 'push fails if submodule commit not on remote' '
        (
                cd work/gar &&
                git clone --bare bage ../../submodule.git &&
                cd bage &&
                git remote add origin ../../../submodule.git &&
                git fetch &&
                >junk3 &&
                git add junk3 &&
                git commit -m "Third junk"
        ) &&
        (
                cd work &&
                git add gar/bage &&
                git commit -m "Third commit for gar/bage" &&
                # the push should fail with --recurse-submodules=check
                # on the command line...
                test_must_fail git push --recurse-submodules=check ../pub.git master &&

                # ...or if specified in the configuration..
                test_must_fail git -c push.recurseSubmodules=check push ../pub.git master
        )
'

test_expect_success 'push succeeds after commit was pushed to remote' '
        (
                cd work/gar/bage &&
                git push origin master
        ) &&
        (
                cd work &&
                git push --recurse-submodules=check ../pub.git master
        )
'

test_expect_success 'push succeeds if submodule commit not on remote but using on-demand on command line' '
        (
                cd work/gar/bage &&
                >recurse-on-demand-on-command-line &&
                git add recurse-on-demand-on-command-line &&
                git commit -m "Recurse on-demand on command line junk"
        ) &&
        (
                cd work &&
                git add gar/bage &&
                git commit -m "Recurse on-demand on command line for gar/bage" &&
                git push --recurse-submodules=on-demand ../pub.git master &&
                # Check that the supermodule commit got there
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master &&
                # Check that the submodule commit got there too
                cd gar/bage &&
                git diff --quiet origin/master master
        )
'

test_expect_success 'push succeeds if submodule commit not on remote but using on-demand from config' '
        (
                cd work/gar/bage &&
                >recurse-on-demand-from-config &&
                git add recurse-on-demand-from-config &&
                git commit -m "Recurse on-demand from config junk"
        ) &&
        (
                cd work &&
                git add gar/bage &&
                git commit -m "Recurse on-demand from config for gar/bage" &&
                git -c push.recurseSubmodules=on-demand push ../pub.git master &&
                # Check that the supermodule commit got there
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master &&
                # Check that the submodule commit got there too
                cd gar/bage &&
                git diff --quiet origin/master master
        )
'

test_expect_success 'push succeeds if submodule commit not on remote but using auto-on-demand via submodule.recurse config' '
        (
                cd work/gar/bage &&
                >recurse-on-demand-from-submodule-recurse-config &&
                git add recurse-on-demand-from-submodule-recurse-config &&
                git commit -m "Recurse submodule.recurse from config junk"
        ) &&
        (
                cd work &&
                git add gar/bage &&
                git commit -m "Recurse submodule.recurse from config for gar/bage" &&
                git -c submodule.recurse push ../pub.git master &&
                # Check that the supermodule commit got there
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master &&
                # Check that the submodule commit got there too
                cd gar/bage &&
                git diff --quiet origin/master master
        )
'

test_expect_success 'push recurse-submodules on command line overrides config' '
        (
                cd work/gar/bage &&
                >recurse-check-on-command-line-overriding-config &&
                git add recurse-check-on-command-line-overriding-config &&
                git commit -m "Recurse on command-line overriding config junk"
        ) &&
        (
                cd work &&
                git add gar/bage &&
                git commit -m "Recurse on command-line overriding config for gar/bage" &&

                # Ensure that we can override on-demand in the config
                # to just check submodules
                test_must_fail git -c push.recurseSubmodules=on-demand push --recurse-submodules=check ../pub.git master &&
                # Check that the supermodule commit did not get there
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master^ &&
                # Check that the submodule commit did not get there
                (cd gar/bage && git diff --quiet origin/master master^) &&

                # Ensure that we can override check in the config to
                # disable submodule recursion entirely
                (cd gar/bage && git diff --quiet origin/master master^) &&
                git -c push.recurseSubmodules=on-demand push --recurse-submodules=no ../pub.git master &&
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master &&
                (cd gar/bage && git diff --quiet origin/master master^) &&

                # Ensure that we can override check in the config to
                # disable submodule recursion entirely (alternative form)
                git -c push.recurseSubmodules=on-demand push --no-recurse-submodules ../pub.git master &&
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master &&
                (cd gar/bage && git diff --quiet origin/master master^) &&

                # Ensure that we can override check in the config to
                # push the submodule too
                git -c push.recurseSubmodules=check push --recurse-submodules=on-demand ../pub.git master &&
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master &&
                (cd gar/bage && git diff --quiet origin/master master)
        )
'

test_expect_success 'push recurse-submodules last one wins on command line' '
        (
                cd work/gar/bage &&
                >recurse-check-on-command-line-overriding-earlier-command-line &&
                git add recurse-check-on-command-line-overriding-earlier-command-line &&
                git commit -m "Recurse on command-line overridiing earlier command-line junk"
        ) &&
        (
                cd work &&
                git add gar/bage &&
                git commit -m "Recurse on command-line overriding earlier command-line for gar/bage" &&

                # should result in "check"
                test_must_fail git push --recurse-submodules=on-demand --recurse-submodules=check ../pub.git master &&
                # Check that the supermodule commit did not get there
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master^ &&
                # Check that the submodule commit did not get there
                (cd gar/bage && git diff --quiet origin/master master^) &&

                # should result in "no"
                git push --recurse-submodules=on-demand --recurse-submodules=no ../pub.git master &&
                # Check that the supermodule commit did get there
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master &&
                # Check that the submodule commit did not get there
                (cd gar/bage && git diff --quiet origin/master master^) &&

                # should result in "no"
                git push --recurse-submodules=on-demand --no-recurse-submodules ../pub.git master &&
                # Check that the submodule commit did not get there
                (cd gar/bage && git diff --quiet origin/master master^) &&

                # But the options in the other order should push the submodule
                git push --recurse-submodules=check --recurse-submodules=on-demand ../pub.git master &&
                # Check that the submodule commit did get there
                git fetch ../pub.git &&
                (cd gar/bage && git diff --quiet origin/master master)
        )
'

test_expect_success 'push succeeds if submodule commit not on remote using on-demand from cmdline overriding config' '
        (
                cd work/gar/bage &&
                >recurse-on-demand-on-command-line-overriding-config &&
                git add recurse-on-demand-on-command-line-overriding-config &&
                git commit -m "Recurse on-demand on command-line overriding config junk"
        ) &&
        (
                cd work &&
                git add gar/bage &&
                git commit -m "Recurse on-demand on command-line overriding config for gar/bage" &&
                git -c push.recurseSubmodules=check push --recurse-submodules=on-demand ../pub.git master &&
                # Check that the supermodule commit got there
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master &&
                # Check that the submodule commit got there
                cd gar/bage &&
                git diff --quiet origin/master master
        )
'

test_expect_success 'push succeeds if submodule commit disabling recursion from cmdline overriding config' '
        (
                cd work/gar/bage &&
                >recurse-disable-on-command-line-overriding-config &&
                git add recurse-disable-on-command-line-overriding-config &&
                git commit -m "Recurse disable on command-line overriding config junk"
        ) &&
        (
                cd work &&
                git add gar/bage &&
                git commit -m "Recurse disable on command-line overriding config for gar/bage" &&
                git -c push.recurseSubmodules=check push --recurse-submodules=no ../pub.git master &&
                # Check that the supermodule commit got there
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master &&
                # But that the submodule commit did not
                ( cd gar/bage && git diff --quiet origin/master master^ ) &&
                # Now push it to avoid confusing future tests
                git push --recurse-submodules=on-demand ../pub.git master
        )
'

test_expect_success 'push succeeds if submodule commit disabling recursion from cmdline (alternative form) overriding config' '
        (
                cd work/gar/bage &&
                >recurse-disable-on-command-line-alt-overriding-config &&
                git add recurse-disable-on-command-line-alt-overriding-config &&
                git commit -m "Recurse disable on command-line alternative overriding config junk"
        ) &&
        (
                cd work &&
                git add gar/bage &&
                git commit -m "Recurse disable on command-line alternative overriding config for gar/bage" &&
                git -c push.recurseSubmodules=check push --no-recurse-submodules ../pub.git master &&
                # Check that the supermodule commit got there
                git fetch ../pub.git &&
                git diff --quiet FETCH_HEAD master &&
                # But that the submodule commit did not
                ( cd gar/bage && git diff --quiet origin/master master^ ) &&
                # Now push it to avoid confusing future tests
                git push --recurse-submodules=on-demand ../pub.git master
        )
'

test_expect_success 'push fails if recurse submodules option passed as yes' '
        (
                cd work/gar/bage &&
                >recurse-push-fails-if-recurse-submodules-passed-as-yes &&
                git add recurse-push-fails-if-recurse-submodules-passed-as-yes &&
                git commit -m "Recurse push fails if recurse submodules option passed as yes"
        ) &&
        (
                cd work &&
                git add gar/bage &&
                git commit -m "Recurse push fails if recurse submodules option passed as yes for gar/bage" &&
                test_must_fail git push --recurse-submodules=yes ../pub.git master &&
                test_must_fail git -c push.recurseSubmodules=yes push ../pub.git master &&
                git push --recurse-submodules=on-demand ../pub.git master
        )
'

test_expect_success 'push fails when commit on multiple branches if one branch has no remote' '
        (
                cd work/gar/bage &&
                >junk4 &&
                git add junk4 &&
                git commit -m "Fourth junk"
        ) &&
        (
                cd work &&
                git branch branch2 &&
                git add gar/bage &&
                git commit -m "Fourth commit for gar/bage" &&
                git checkout branch2 &&
                (
                        cd gar/bage &&
                        git checkout HEAD~1
                ) &&
                >junk1 &&
                git add junk1 &&
                git commit -m "First junk" &&
                test_must_fail git push --recurse-submodules=check ../pub.git
        )
'

test_expect_success 'push succeeds if submodule has no remote and is on the first superproject commit' '
        git init --bare a &&
        git clone a a1 &&
        (
                cd a1 &&
                git init b
                (
                        cd b &&
                        >junk &&
                        git add junk &&
                        git commit -m "initial"
                ) &&
                git add b &&
                git commit -m "added submodule" &&
                git push --recurse-submodule=check origin master
        )
'

test_expect_success 'push unpushed submodules when not needed' '
        (
                cd work &&
                (
                        cd gar/bage &&
                        git checkout master &&
                        >junk5 &&
                        git add junk5 &&
                        git commit -m "Fifth junk" &&
                        git push &&
                        git rev-parse origin/master >../../../expected
                ) &&
                git checkout master &&
                git add gar/bage &&
                git commit -m "Fifth commit for gar/bage" &&
                git push --recurse-submodules=on-demand ../pub.git master
        ) &&
        (
                cd submodule.git &&
                git rev-parse master >../actual
        ) &&
        test_cmp expected actual
'

test_expect_success 'push unpushed submodules when not needed 2' '
        (
                cd submodule.git &&
                git rev-parse master >../expected
        ) &&
        (
                cd work &&
                (
                        cd gar/bage &&
                        >junk6 &&
                        git add junk6 &&
                        git commit -m "Sixth junk"
                ) &&
                >junk2 &&
                git add junk2 &&
                git commit -m "Second junk for work" &&
                git push --recurse-submodules=on-demand ../pub.git master
        ) &&
        (
                cd submodule.git &&
                git rev-parse master >../actual
        ) &&
        test_cmp expected actual
'

test_expect_success 'push unpushed submodules recursively' '
        (
                cd work &&
                (
                        cd gar/bage &&
                        git checkout master &&
                        > junk7 &&
                        git add junk7 &&
                        git commit -m "Seventh junk" &&
                        git rev-parse master >../../../expected
                ) &&
                git checkout master &&
                git add gar/bage &&
                git commit -m "Seventh commit for gar/bage" &&
                git push --recurse-submodules=on-demand ../pub.git master
        ) &&
        (
                cd submodule.git &&
                git rev-parse master >../actual
        ) &&
        test_cmp expected actual
'

test_expect_success 'push unpushable submodule recursively fails' '
        (
                cd work &&
                (
                        cd gar/bage &&
                        git rev-parse origin/master >../../../expected &&
                        git checkout master~0 &&
                        > junk8 &&
                        git add junk8 &&
                        git commit -m "Eighth junk"
                ) &&
                git add gar/bage &&
                git commit -m "Eighth commit for gar/bage" &&
                test_must_fail git push --recurse-submodules=on-demand ../pub.git master
        ) &&
        (
                cd submodule.git &&
                git rev-parse master >../actual
        ) &&
        test_when_finished git -C work reset --hard master^ &&
        test_cmp expected actual
'

test_expect_success 'push --dry-run does not recursively update submodules' '
        (
                cd work/gar/bage &&
                git checkout master &&
                git rev-parse master >../../../expected_submodule &&
                > junk9 &&
                git add junk9 &&
                git commit -m "Ninth junk" &&

                # Go up to 'work' directory
                cd ../.. &&
                git checkout master &&
                git rev-parse master >../expected_pub &&
                git add gar/bage &&
                git commit -m "Ninth commit for gar/bage" &&
                git push --dry-run --recurse-submodules=on-demand ../pub.git master
        ) &&
        git -C submodule.git rev-parse master >actual_submodule &&
        git -C pub.git rev-parse master >actual_pub &&
        test_cmp expected_pub actual_pub &&
        test_cmp expected_submodule actual_submodule
'

test_expect_success 'push --dry-run does not recursively update submodules' '
        git -C work push --dry-run --recurse-submodules=only ../pub.git master &&

        git -C submodule.git rev-parse master >actual_submodule &&
        git -C pub.git rev-parse master >actual_pub &&
        test_cmp expected_pub actual_pub &&
        test_cmp expected_submodule actual_submodule
'

test_expect_success 'push only unpushed submodules recursively' '
        git -C work/gar/bage rev-parse master >expected_submodule &&
        git -C pub.git rev-parse master >expected_pub &&

        git -C work push --recurse-submodules=only ../pub.git master &&

        git -C submodule.git rev-parse master >actual_submodule &&
        git -C pub.git rev-parse master >actual_pub &&
        test_cmp expected_submodule actual_submodule &&
        test_cmp expected_pub actual_pub
'

test_expect_success 'push propagating the remotes name to a submodule' '
        git -C work remote add origin ../pub.git &&
        git -C work remote add pub ../pub.git &&

        > work/gar/bage/junk10 &&
        git -C work/gar/bage add junk10 &&
        git -C work/gar/bage commit -m "Tenth junk" &&
        git -C work add gar/bage &&
        git -C work commit -m "Tenth junk added to gar/bage" &&

        # Fails when submodule does not have a matching remote
        test_must_fail git -C work push --recurse-submodules=on-demand pub master &&
        # Succeeds when submodules has matching remote and refspec
        git -C work push --recurse-submodules=on-demand origin master &&

        git -C submodule.git rev-parse master >actual_submodule &&
        git -C pub.git rev-parse master >actual_pub &&
        git -C work/gar/bage rev-parse master >expected_submodule &&
        git -C work rev-parse master >expected_pub &&
        test_cmp expected_submodule actual_submodule &&
        test_cmp expected_pub actual_pub
'

test_expect_success 'push propagating refspec to a submodule' '
        > work/gar/bage/junk11 &&
        git -C work/gar/bage add junk11 &&
        git -C work/gar/bage commit -m "Eleventh junk" &&

        git -C work checkout branch2 &&
        git -C work add gar/bage &&
        git -C work commit -m "updating gar/bage in branch2" &&

        # Fails when submodule does not have a matching branch
        test_must_fail git -C work push --recurse-submodules=on-demand origin branch2 &&
        # Fails when refspec includes an object id
        test_must_fail git -C work push --recurse-submodules=on-demand origin \
                "$(git -C work rev-parse branch2):refs/heads/branch2" &&
        # Fails when refspec includes HEAD and parent and submodule do not
        # have the same named branch checked out
        test_must_fail git -C work push --recurse-submodules=on-demand origin \
                HEAD:refs/heads/branch2 &&

        git -C work/gar/bage branch branch2 master &&
        git -C work push --recurse-submodules=on-demand origin branch2 &&

        git -C submodule.git rev-parse branch2 >actual_submodule &&
        git -C pub.git rev-parse branch2 >actual_pub &&
        git -C work/gar/bage rev-parse branch2 >expected_submodule &&
        git -C work rev-parse branch2 >expected_pub &&
        test_cmp expected_submodule actual_submodule &&
        test_cmp expected_pub actual_pub
'

test_expect_success 'push propagating HEAD refspec to a submodule' '
        git -C work/gar/bage checkout branch2 &&
        > work/gar/bage/junk12 &&
        git -C work/gar/bage add junk12 &&
        git -C work/gar/bage commit -m "Twelfth junk" &&

        git -C work checkout branch2 &&
        git -C work add gar/bage &&
        git -C work commit -m "updating gar/bage in branch2" &&

        # Passes since the superproject and submodules HEAD are both on branch2
        git -C work push --recurse-submodules=on-demand origin \
                HEAD:refs/heads/branch2 &&

        git -C submodule.git rev-parse branch2 >actual_submodule &&
        git -C pub.git rev-parse branch2 >actual_pub &&
        git -C work/gar/bage rev-parse branch2 >expected_submodule &&
        git -C work rev-parse branch2 >expected_pub &&
        test_cmp expected_submodule actual_submodule &&
        test_cmp expected_pub actual_pub
'

test_done