#!/bin/sh
#
# Copyright (c) 2007 Santi Béjar, based on t4013 by Junio C Hamano
#
#

test_description='Merge logic in fetch'

# NEEDSWORK: If the overspecification of the expected result is reduced, we
# might be able to run this test in all protocol versions.
GIT_TEST_PROTOCOL_VERSION=

. ./test-lib.sh

test_expect_success setup '
        GIT_AUTHOR_DATE="2006-06-26 00:00:00 +0000" &&
        GIT_COMMITTER_DATE="2006-06-26 00:00:00 +0000" &&
        export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&

        echo >file original &&
        git add file &&
        git commit -a -m One &&
        git tag tag-one &&
        git tag tag-one-tree HEAD^{tree} &&
        git branch one &&

        echo two >> file &&
        git commit -a -m Two &&
        git tag -a -m "Tag Two" tag-two &&
        git branch two &&

        echo three >> file &&
        git commit -a -m Three &&
        git tag -a -m "Tag Three" tag-three &&
        git tag -a -m "Tag Three file" tag-three-file HEAD^{tree}:file &&
        git branch three &&

        echo master >> file &&
        git commit -a -m Master &&
        git tag -a -m "Tag Master" tag-master &&

        git checkout three &&

        git clone . cloned &&
        cd cloned &&
        git config remote.origin.url ../.git/ &&

        git config remote.config-explicit.url ../.git/ &&
        git config remote.config-explicit.fetch refs/heads/master:remotes/rem/master &&
        git config --add remote.config-explicit.fetch refs/heads/one:remotes/rem/one &&
        git config --add remote.config-explicit.fetch two:remotes/rem/two &&
        git config --add remote.config-explicit.fetch refs/heads/three:remotes/rem/three &&
        remotes="config-explicit" &&

        git config remote.config-glob.url ../.git/ &&
        git config remote.config-glob.fetch refs/heads/*:refs/remotes/rem/* &&
        remotes="$remotes config-glob" &&

        mkdir -p .git/remotes &&
        {
                echo "URL: ../.git/"
                echo "Pull: refs/heads/master:remotes/rem/master"
                echo "Pull: refs/heads/one:remotes/rem/one"
                echo "Pull: two:remotes/rem/two"
                echo "Pull: refs/heads/three:remotes/rem/three"
        } >.git/remotes/remote-explicit &&
        remotes="$remotes remote-explicit" &&

        {
                echo "URL: ../.git/"
                echo "Pull: refs/heads/*:refs/remotes/rem/*"
        } >.git/remotes/remote-glob &&
        remotes="$remotes remote-glob" &&

        mkdir -p .git/branches &&
        echo "../.git" > .git/branches/branches-default &&
        remotes="$remotes branches-default" &&

        echo "../.git#one" > .git/branches/branches-one &&
        remotes="$remotes branches-one" &&

        for remote in $remotes ; do
                git config branch.br-$remote.remote $remote &&
                git config branch.br-$remote-merge.remote $remote &&
                git config branch.br-$remote-merge.merge refs/heads/three &&
                git config branch.br-$remote-octopus.remote $remote &&
                git config branch.br-$remote-octopus.merge refs/heads/one &&
                git config --add branch.br-$remote-octopus.merge two
        done
'

# Merge logic depends on branch properties and Pull: or .fetch lines
for remote in $remotes ; do
    for branch in "" "-merge" "-octopus" ; do
cat <<EOF
br-$remote$branch
br-$remote$branch $remote
EOF
    done
done > tests

# Merge logic does not depend on branch properties,
# but does depend on Pull: or fetch lines.
# Use two branches completely unrelated from the arguments,
# the clone default and one without branch properties
for branch in master br-unconfig ; do
    echo $branch
    for remote in $remotes ; do
        echo $branch $remote
    done
done >> tests

# Merge logic does not depend on branch properties
# neither in the Pull: or .fetch config
for branch in master br-unconfig ; do
    cat <<EOF
$branch ../.git
$branch ../.git one
$branch ../.git one two
$branch --tags ../.git
$branch ../.git tag tag-one tag tag-three
$branch ../.git tag tag-one-tree tag tag-three-file
$branch ../.git one tag tag-one tag tag-three-file
EOF
done >> tests

while read cmd
do
        case "$cmd" in
        '' | '#'*) continue ;;
        esac
        test=$(echo "$cmd" | sed -e 's|[/ ][/ ]*|_|g')
        pfx=$(printf "%04d" $test_count)
        expect_f="$TEST_DIRECTORY/t5515/fetch.$test"
        actual_f="$pfx-fetch.$test"
        expect_r="$TEST_DIRECTORY/t5515/refs.$test"
        actual_r="$pfx-refs.$test"

        test_expect_success "$cmd" '
                {
                        echo "# $cmd"
                        set x $cmd; shift
                        git symbolic-ref HEAD refs/heads/$1 ; shift
                        rm -f .git/FETCH_HEAD
                        git for-each-ref \
                                refs/heads refs/remotes/rem refs/tags |
                        while read val type refname
                        do
                                git update-ref -d "$refname" "$val"
                        done
                        git fetch "$@" >/dev/null
                        cat .git/FETCH_HEAD
                } >"$actual_f" &&
                git show-ref >"$actual_r" &&
                if test -f "$expect_f"
                then
                        test_cmp "$expect_f" "$actual_f" &&
                        rm -f "$actual_f"
                else
                        # this is to help developing new tests.
                        cp "$actual_f" "$expect_f"
                        false
                fi &&
                if test -f "$expect_r"
                then
                        test_cmp "$expect_r" "$actual_r" &&
                        rm -f "$actual_r"
                else
                        # this is to help developing new tests.
                        cp "$actual_r" "$expect_r"
                        false
                fi
        '
done < tests

test_done