#!/bin/sh

test_description='fetch/push involving ref namespaces'
. ./test-lib.sh

test_expect_success setup '
        git config --global protocol.ext.allow user &&
        test_tick &&
        git init original &&
        (
                cd original &&
                echo 0 >count &&
                git add count &&
                test_commit 0 &&
                echo 1 >count &&
                git add count &&
                test_commit 1 &&
                git remote add pushee-namespaced "ext::git --namespace=namespace %s ../pushee" &&
                git remote add pushee-unnamespaced ../pushee
        ) &&
        commit0=$(cd original && git rev-parse HEAD^) &&
        commit1=$(cd original && git rev-parse HEAD) &&
        git init pushee &&
        git init puller
'

test_expect_success 'pushing into a repository using a ref namespace' '
        (
                cd original &&
                git push pushee-namespaced master &&
                git ls-remote pushee-namespaced >actual &&
                printf "$commit1\trefs/heads/master\n" >expected &&
                test_cmp expected actual &&
                git push pushee-namespaced --tags &&
                git ls-remote pushee-namespaced >actual &&
                printf "$commit0\trefs/tags/0\n" >>expected &&
                printf "$commit1\trefs/tags/1\n" >>expected &&
                test_cmp expected actual &&
                # Verify that the GIT_NAMESPACE environment variable works as well
                GIT_NAMESPACE=namespace git ls-remote "ext::git %s ../pushee" >actual &&
                test_cmp expected actual &&
                # Verify that --namespace overrides GIT_NAMESPACE
                GIT_NAMESPACE=garbage git ls-remote pushee-namespaced >actual &&
                test_cmp expected actual &&
                # Try a namespace with no content
                git ls-remote "ext::git --namespace=garbage %s ../pushee" >actual &&
                test_must_be_empty actual &&
                git ls-remote pushee-unnamespaced >actual &&
                sed -e "s|refs/|refs/namespaces/namespace/refs/|" expected >expected.unnamespaced &&
                test_cmp expected.unnamespaced actual
        )
'

test_expect_success 'pulling from a repository using a ref namespace' '
        (
                cd puller &&
                git remote add -f pushee-namespaced "ext::git --namespace=namespace %s ../pushee" &&
                git for-each-ref refs/ >actual &&
                printf "$commit1 commit\trefs/remotes/pushee-namespaced/master\n" >expected &&
                printf "$commit0 commit\trefs/tags/0\n" >>expected &&
                printf "$commit1 commit\trefs/tags/1\n" >>expected &&
                test_cmp expected actual
        )
'

# This test with clone --mirror checks for possible regressions in clone
# or the machinery underneath it. It ensures that no future change
# causes clone to ignore refs in refs/namespaces/*. In particular, it
# protects against a regression caused by any future change to the refs
# machinery that might cause it to ignore refs outside of refs/heads/*
# or refs/tags/*. More generally, this test also checks the high-level
# functionality of using clone --mirror to back up a set of repos hosted
# in the namespaces of a single repo.
test_expect_success 'mirroring a repository using a ref namespace' '
        git clone --mirror pushee mirror &&
        (
                cd mirror &&
                git for-each-ref refs/ >actual &&
                printf "$commit1 commit\trefs/namespaces/namespace/refs/heads/master\n" >expected &&
                printf "$commit0 commit\trefs/namespaces/namespace/refs/tags/0\n" >>expected &&
                printf "$commit1 commit\trefs/namespaces/namespace/refs/tags/1\n" >>expected &&
                test_cmp expected actual
        )
'

test_expect_success 'hide namespaced refs with transfer.hideRefs' '
        GIT_NAMESPACE=namespace \
                git -C pushee -c transfer.hideRefs=refs/tags \
                ls-remote "ext::git %s ." >actual &&
        printf "$commit1\trefs/heads/master\n" >expected &&
        test_cmp expected actual
'

test_expect_success 'check that transfer.hideRefs does not match unstripped refs' '
        GIT_NAMESPACE=namespace \
                git -C pushee -c transfer.hideRefs=refs/namespaces/namespace/refs/tags \
                ls-remote "ext::git %s ." >actual &&
        printf "$commit1\trefs/heads/master\n" >expected &&
        printf "$commit0\trefs/tags/0\n" >>expected &&
        printf "$commit1\trefs/tags/1\n" >>expected &&
        test_cmp expected actual
'

test_expect_success 'hide full refs with transfer.hideRefs' '
        GIT_NAMESPACE=namespace \
                git -C pushee -c transfer.hideRefs="^refs/namespaces/namespace/refs/tags" \
                ls-remote "ext::git %s ." >actual &&
        printf "$commit1\trefs/heads/master\n" >expected &&
        test_cmp expected actual
'

test_expect_success 'try to update a hidden ref' '
        test_config -C pushee transfer.hideRefs refs/heads/master &&
        test_must_fail git -C original push pushee-namespaced master
'

test_expect_success 'try to update a ref that is not hidden' '
        test_config -C pushee transfer.hideRefs refs/namespaces/namespace/refs/heads/master &&
        git -C original push pushee-namespaced master
'

test_expect_success 'try to update a hidden full ref' '
        test_config -C pushee transfer.hideRefs "^refs/namespaces/namespace/refs/heads/master" &&
        test_must_fail git -C original push pushee-namespaced master
'

test_done