#!/bin/sh

test_description='git remote porcelain-ish'

. ./test-lib.sh

setup_repository () {
        mkdir "$1" && (
        cd "$1" &&
        git init &&
        >file &&
        git add file &&
        test_tick &&
        git commit -m "Initial" &&
        git checkout -b side &&
        >elif &&
        git add elif &&
        test_tick &&
        git commit -m "Second" &&
        git checkout master
        )
}

tokens_match () {
        echo "$1" | tr ' ' '\012' | sort | sed -e '/^$/d' >expect &&
        echo "$2" | tr ' ' '\012' | sort | sed -e '/^$/d' >actual &&
        test_cmp expect actual
}

check_remote_track () {
        actual=$(git remote show "$1" | sed -e '1,/Tracked/d') &&
        shift &&
        tokens_match "$*" "$actual"
}

check_tracking_branch () {
        f="" &&
        r=$(git for-each-ref "--format=%(refname)" |
                sed -ne "s|^refs/remotes/$1/||p") &&
        shift &&
        tokens_match "$*" "$r"
}

test_expect_success setup '

        setup_repository one &&
        setup_repository two &&
        (
                cd two && git branch another
        ) &&
        git clone one test

'

test_expect_success 'remote information for the origin' '
(
        cd test &&
        tokens_match origin "$(git remote)" &&
        check_remote_track origin master side &&
        check_tracking_branch origin HEAD master side
)
'

test_expect_success 'add another remote' '
(
        cd test &&
        git remote add -f second ../two &&
        tokens_match "origin second" "$(git remote)" &&
        check_remote_track origin master side &&
        check_remote_track second master side another &&
        check_tracking_branch second master side another &&
        git for-each-ref "--format=%(refname)" refs/remotes |
        sed -e "/^refs\/remotes\/origin\//d" \
            -e "/^refs\/remotes\/second\//d" >actual &&
        >expect &&
        test_cmp expect actual
)
'

test_expect_success 'remote forces tracking branches' '
(
        cd test &&
        case `git config remote.second.fetch` in
        +*) true ;;
         *) false ;;
        esac
)
'

test_expect_success 'remove remote' '
(
        cd test &&
        git symbolic-ref refs/remotes/second/HEAD refs/remotes/second/master &&
        git remote rm second
)
'

test_expect_success 'remove remote' '
(
        cd test &&
        tokens_match origin "$(git remote)" &&
        check_remote_track origin master side &&
        git for-each-ref "--format=%(refname)" refs/remotes |
        sed -e "/^refs\/remotes\/origin\//d" >actual &&
        >expect &&
        test_cmp expect actual
)
'

test_expect_success 'remove remote protects non-remote branches' '
(
        cd test &&
        (cat >expect1 <<EOF
Note: A non-remote branch was not removed; to delete it, use:
  git branch -d master
EOF
    cat >expect2 <<EOF
Note: Non-remote branches were not removed; to delete them, use:
  git branch -d foobranch
  git branch -d master
EOF
) &&
        git tag footag
        git config --add remote.oops.fetch "+refs/*:refs/*" &&
        git remote rm oops 2>actual1 &&
        git branch foobranch &&
        git config --add remote.oops.fetch "+refs/*:refs/*" &&
        git remote rm oops 2>actual2 &&
        git branch -d foobranch &&
        git tag -d footag &&
        test_cmp expect1 actual1 &&
        test_cmp expect2 actual2
)
'

cat > test/expect << EOF
* remote origin
  URL: $(pwd)/one
  HEAD branch: master
  Remote branch merged with 'git pull' while on branch master
    master
  New remote branch (next fetch will store in remotes/origin)
    master
  Tracked remote branches
    master
    side
  Local branches pushed with 'git push'
    master:upstream
    +refs/tags/lastbackup
* remote two
  URL: ../two
  HEAD branch (remote HEAD is ambiguous, may be one of the following):
    another
    master
EOF

test_expect_success 'show' '
        (cd test &&
         git config --add remote.origin.fetch \
                refs/heads/master:refs/heads/upstream &&
         git fetch &&
         git branch -d -r origin/master &&
         git config --add remote.two.url ../two &&
         (cd ../one &&
          echo 1 > file &&
          test_tick &&
          git commit -m update file) &&
         git config remote.origin.push \
                refs/heads/master:refs/heads/upstream &&
         git config --add remote.origin.push \
                +refs/tags/lastbackup &&
         git remote show origin two > output &&
         test_cmp expect output)
'

cat > test/expect << EOF
* remote origin
  URL: $(pwd)/one
  HEAD branch: (not queried)
  Remote branch merged with 'git pull' while on branch master
    master
  Tracked remote branches
    master
    side
  Local branches pushed with 'git push'
    master:upstream
    +refs/tags/lastbackup
EOF

test_expect_success 'show -n' '
        (mv one one.unreachable &&
         cd test &&
         git remote show -n origin > output &&
         mv ../one.unreachable ../one &&
         test_cmp expect output)
'

test_expect_success 'prune' '
        (cd one &&
         git branch -m side side2) &&
        (cd test &&
         git fetch origin &&
         git remote prune origin &&
         git rev-parse refs/remotes/origin/side2 &&
         test_must_fail git rev-parse refs/remotes/origin/side)
'

test_expect_success 'set-head --delete' '
        (cd test &&
         git symbolic-ref refs/remotes/origin/HEAD &&
         git remote set-head --delete origin &&
         test_must_fail git symbolic-ref refs/remotes/origin/HEAD)
'

test_expect_success 'set-head --auto' '
        (cd test &&
         git remote set-head --auto origin &&
         echo refs/remotes/origin/master >expect &&
         git symbolic-ref refs/remotes/origin/HEAD >output &&
         test_cmp expect output
        )
'

cat >test/expect <<EOF
error: Multiple remote HEAD branches. Please choose one explicitly with:
  git remote set-head two another
  git remote set-head two master
EOF

test_expect_success 'set-head --auto fails w/multiple HEADs' '
        (cd test &&
         test_must_fail git remote set-head --auto two >output 2>&1 &&
        test_cmp expect output)
'

cat >test/expect <<EOF
refs/remotes/origin/side2
EOF

test_expect_success 'set-head explicit' '
        (cd test &&
         git remote set-head origin side2 &&
         git symbolic-ref refs/remotes/origin/HEAD >output &&
         git remote set-head origin master &&
         test_cmp expect output)
'

cat > test/expect << EOF
Pruning origin
URL: $(pwd)/one
 * [would prune] origin/side2
EOF

test_expect_success 'prune --dry-run' '
        (cd one &&
         git branch -m side2 side) &&
        (cd test &&
         git remote prune --dry-run origin > output &&
         git rev-parse refs/remotes/origin/side2 &&
         test_must_fail git rev-parse refs/remotes/origin/side &&
        (cd ../one &&
         git branch -m side side2) &&
         test_cmp expect output)
'

test_expect_success 'add --mirror && prune' '
        (mkdir mirror &&
         cd mirror &&
         git init --bare &&
         git remote add --mirror -f origin ../one) &&
        (cd one &&
         git branch -m side2 side) &&
        (cd mirror &&
         git rev-parse --verify refs/heads/side2 &&
         test_must_fail git rev-parse --verify refs/heads/side &&
         git fetch origin &&
         git remote prune origin &&
         test_must_fail git rev-parse --verify refs/heads/side2 &&
         git rev-parse --verify refs/heads/side)
'

test_expect_success 'add alt && prune' '
        (mkdir alttst &&
         cd alttst &&
         git init &&
         git remote add -f origin ../one &&
         git config remote.alt.url ../one &&
         git config remote.alt.fetch "+refs/heads/*:refs/remotes/origin/*") &&
        (cd one &&
         git branch -m side side2) &&
        (cd alttst &&
         git rev-parse --verify refs/remotes/origin/side &&
         test_must_fail git rev-parse --verify refs/remotes/origin/side2 &&
         git fetch alt &&
         git remote prune alt &&
         test_must_fail git rev-parse --verify refs/remotes/origin/side &&
         git rev-parse --verify refs/remotes/origin/side2)
'

cat > one/expect << EOF
  apis/master
  apis/side
  drosophila/another
  drosophila/master
  drosophila/side
EOF

test_expect_success 'update' '

        (cd one &&
         git remote add drosophila ../two &&
         git remote add apis ../mirror &&
         git remote update &&
         git branch -r > output &&
         test_cmp expect output)

'

cat > one/expect << EOF
  drosophila/another
  drosophila/master
  drosophila/side
  manduca/master
  manduca/side
  megaloprepus/master
  megaloprepus/side
EOF

test_expect_success 'update with arguments' '

        (cd one &&
         for b in $(git branch -r)
         do
                git branch -r -d $b || break
         done &&
         git remote add manduca ../mirror &&
         git remote add megaloprepus ../mirror &&
         git config remotes.phobaeticus "drosophila megaloprepus" &&
         git config remotes.titanus manduca &&
         git remote update phobaeticus titanus &&
         git branch -r > output &&
         test_cmp expect output)

'

cat > one/expect << EOF
  apis/master
  apis/side
  manduca/master
  manduca/side
  megaloprepus/master
  megaloprepus/side
EOF

test_expect_success 'update default' '

        (cd one &&
         for b in $(git branch -r)
         do
                git branch -r -d $b || break
         done &&
         git config remote.drosophila.skipDefaultUpdate true &&
         git remote update default &&
         git branch -r > output &&
         test_cmp expect output)

'

cat > one/expect << EOF
  drosophila/another
  drosophila/master
  drosophila/side
EOF

test_expect_success 'update default (overridden, with funny whitespace)' '

        (cd one &&
         for b in $(git branch -r)
         do
                git branch -r -d $b || break
         done &&
         git config remotes.default "$(printf "\t drosophila  \n")" &&
         git remote update default &&
         git branch -r > output &&
         test_cmp expect output)

'

test_expect_success '"remote show" does not show symbolic refs' '

        git clone one three &&
        (cd three &&
         git remote show origin > output &&
         ! grep "^ *HEAD$" < output &&
         ! grep -i stale < output)

'

test_expect_success 'reject adding remote with an invalid name' '

        test_must_fail git remote add some:url desired-name

'

# The first three test if the tracking branches are properly renamed,
# the last two ones check if the config is updated.

test_expect_success 'rename a remote' '

        git clone one four &&
        (cd four &&
         git remote rename origin upstream &&
         rmdir .git/refs/remotes/origin &&
         test "$(git symbolic-ref refs/remotes/upstream/HEAD)" = "refs/remotes/upstream/master" &&
         test "$(git rev-parse upstream/master)" = "$(git rev-parse master)" &&
         test "$(git config remote.upstream.fetch)" = "+refs/heads/*:refs/remotes/upstream/*" &&
         test "$(git config branch.master.remote)" = "upstream")

'

cat > remotes_origin << EOF
URL: $(pwd)/one
Push: refs/heads/master:refs/heads/upstream
Pull: refs/heads/master:refs/heads/origin
EOF

test_expect_success 'migrate a remote from named file in $GIT_DIR/remotes' '
        git clone one five &&
        origin_url=$(pwd)/one &&
        (cd five &&
         git remote rm origin &&
         mkdir -p .git/remotes &&
         cat ../remotes_origin > .git/remotes/origin &&
         git remote rename origin origin &&
         ! test -f .git/remotes/origin &&
         test "$(git config remote.origin.url)" = "$origin_url" &&
         test "$(git config remote.origin.push)" = "refs/heads/master:refs/heads/upstream" &&
         test "$(git config remote.origin.fetch)" = "refs/heads/master:refs/heads/origin")
'

test_expect_success 'migrate a remote from named file in $GIT_DIR/branches' '
        git clone one six &&
        origin_url=$(pwd)/one &&
        (cd six &&
         git remote rm origin &&
         echo "$origin_url" > .git/branches/origin &&
         git remote rename origin origin &&
         ! test -f .git/branches/origin &&
         test "$(git config remote.origin.url)" = "$origin_url" &&
         test "$(git config remote.origin.fetch)" = "refs/heads/master:refs/heads/origin")
'

test_expect_success 'remote prune to cause a dangling symref' '
        git clone one seven &&
        (
                cd one &&
                git checkout side2 &&
                git branch -D master
        ) &&
        (
                cd seven &&
                git remote prune origin
        ) 2>err &&
        grep "has become dangling" err &&

        : And the dangling symref will not cause other annoying errors
        (
                cd seven &&
                git branch -a
        ) 2>err &&
        ! grep "points nowhere" err
        (
                cd seven &&
                test_must_fail git branch nomore origin
        ) 2>err &&
        grep "dangling symref" err
'

test_done