#!/bin/sh
# Copyright (c) 2010, Jens Lehmann

test_description='Recursive "git fetch" for submodules'

. ./test-lib.sh

pwd=$(pwd)

add_upstream_commit() {
        (
                cd submodule &&
                head1=$(git rev-parse --short HEAD) &&
                echo new >> subfile &&
                test_tick &&
                git add subfile &&
                git commit -m new subfile &&
                head2=$(git rev-parse --short HEAD) &&
                echo "From $pwd/submodule" > ../expect.err &&
                echo "   $head1..$head2  master     -> origin/master" >> ../expect.err
        ) &&
        (
                cd deepsubmodule &&
                head1=$(git rev-parse --short HEAD) &&
                echo new >> deepsubfile &&
                test_tick &&
                git add deepsubfile &&
                git commit -m new deepsubfile &&
                head2=$(git rev-parse --short HEAD) &&
                echo "From $pwd/deepsubmodule" >> ../expect.err &&
                echo "   $head1..$head2  master     -> origin/master" >> ../expect.err
        )
}

test_expect_success setup '
        mkdir deepsubmodule &&
        (
                cd deepsubmodule &&
                git init &&
                echo deepsubcontent > deepsubfile &&
                git add deepsubfile &&
                git commit -m new deepsubfile
        ) &&
        mkdir submodule &&
        (
                cd submodule &&
                git init &&
                echo subcontent > subfile &&
                git add subfile &&
                git submodule add "$pwd/deepsubmodule" deepsubmodule &&
                git commit -a -m new
        ) &&
        git submodule add "$pwd/submodule" submodule &&
        git commit -am initial &&
        git clone . downstream &&
        (
                cd downstream &&
                git submodule update --init --recursive
        ) &&
        echo "Fetching submodule submodule" > expect.out &&
        echo "Fetching submodule submodule/deepsubmodule" >> expect.out
'

test_expect_success "fetch --recurse-submodules recurses into submodules" '
        add_upstream_commit &&
        (
                cd downstream &&
                git fetch --recurse-submodules >../actual.out 2>../actual.err
        )
'

test_expect_success C_LOCALE_OUTPUT "fetch --recurse-submodules recurses into submodules: output" '
        test_cmp expect.out actual.out &&
        test_cmp expect.err actual.err
'

test_expect_success "fetch alone only fetches superproject" '
        add_upstream_commit &&
        (
                cd downstream &&
                git fetch >../actual.out 2>../actual.err
        ) &&
        ! test -s actual.out &&
        ! test -s actual.err
'

test_expect_success "fetch --no-recurse-submodules only fetches superproject" '
        (
                cd downstream &&
                git fetch --no-recurse-submodules >../actual.out 2>../actual.err
        ) &&
        ! test -s actual.out &&
        ! test -s actual.err
'

test_expect_success "using fetchRecurseSubmodules=true in .gitmodules recurses into submodules" '
        (
                cd downstream &&
                git config -f .gitmodules submodule.submodule.fetchRecurseSubmodules true &&
                git fetch >../actual.out 2>../actual.err
        )
'

test_expect_success C_LOCALE_OUTPUT "using fetchRecurseSubmodules=true in .gitmodules recurses into submodules" '
        test_cmp expect.out actual.out &&
        test_cmp expect.err actual.err
'

test_expect_success "--no-recurse-submodules overrides .gitmodules config" '
        add_upstream_commit &&
        (
                cd downstream &&
                git fetch --no-recurse-submodules >../actual.out 2>../actual.err
        ) &&
        ! test -s actual.out &&
        ! test -s actual.err
'

test_expect_success "using fetchRecurseSubmodules=false in .git/config overrides setting in .gitmodules" '
        (
                cd downstream &&
                git config submodule.submodule.fetchRecurseSubmodules false &&
                git fetch >../actual.out 2>../actual.err
        ) &&
        ! test -s actual.out &&
        ! test -s actual.err
'

test_expect_success "--recurse-submodules overrides fetchRecurseSubmodules setting from .git/config" '
        (
                cd downstream &&
                git fetch --recurse-submodules >../actual.out 2>../actual.err &&
                git config --unset -f .gitmodules submodule.submodule.fetchRecurseSubmodules &&
                git config --unset submodule.submodule.fetchRecurseSubmodules
        )
'

test_expect_success C_LOCALE_OUTPUT "--recurse-submodules overrides fetchRecurseSubmodules setting from .git/config: output" '
        test_cmp expect.out actual.out &&
        test_cmp expect.err actual.err
'

test_expect_success "--quiet propagates to submodules" '
        (
                cd downstream &&
                git fetch --recurse-submodules --quiet >../actual.out 2>../actual.err
        ) &&
        ! test -s actual.out &&
        ! test -s actual.err
'

test_expect_success "--dry-run propagates to submodules" '
        add_upstream_commit &&
        (
                cd downstream &&
                git fetch --recurse-submodules --dry-run >../actual.out 2>../actual.err
        )
'

test_expect_success C_LOCALE_OUTPUT "--dry-run propagates to submodules: output" '
        test_cmp expect.out actual.out &&
        test_cmp expect.err actual.err
'

test_expect_success "Without --dry-run propagates to submodules" '
        (
                cd downstream &&
                git fetch --recurse-submodules >../actual.out 2>../actual.err
        )
'

test_expect_success C_LOCALE_OUTPUT "Without --dry-run propagates to submodules: output" '
        test_cmp expect.out actual.out &&
        test_cmp expect.err actual.err
'

test_expect_success "recurseSubmodules=true propagates into submodules" '
        add_upstream_commit &&
        (
                cd downstream &&
                git config fetch.recurseSubmodules true
                git fetch >../actual.out 2>../actual.err
        )
'

test_expect_success C_LOCALE_OUTPUT "recurseSubmodules=true propagates into submodules: output" '
        test_cmp expect.out actual.out &&
        test_cmp expect.err actual.err
'

test_expect_success "--recurse-submodules overrides config in submodule" '
        add_upstream_commit &&
        (
                cd downstream &&
                (
                        cd submodule &&
                        git config fetch.recurseSubmodules false
                ) &&
                git fetch --recurse-submodules >../actual.out 2>../actual.err
        )
'

test_expect_success C_LOCALE_OUTPUT "--recurse-submodules overrides config in submodule: output" '
        test_cmp expect.out actual.out &&
        test_cmp expect.err actual.err
'

test_expect_success "--no-recurse-submodules overrides config setting" '
        add_upstream_commit &&
        (
                cd downstream &&
                git config fetch.recurseSubmodules true
                git fetch --no-recurse-submodules >../actual.out 2>../actual.err
        ) &&
        ! test -s actual.out &&
        ! test -s actual.err
'

test_done