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The receive.denyCurrentBranch config option controls what happens if you push to a branch that is checked out into a non-bare repository. By default, it rejects it. It can be disabled via `ignore` or `warn`. Another yet trickier option is `updateInstead`. However, this setting was forgotten when the git worktree command was introduced: only the main worktree's current branch is respected. With this change, all worktrees are respected. That change also leads to revealing another bug, i.e. `receive.denyCurrentBranch = true` was ignored when pushing into a non-bare repository's unborn current branch using ref namespaces. As `is_ref_checked_out()` returns 0 which means `receive-pack` does not get into conditional statement to switch `deny_current_branch` accordingly (ignore, warn, refuse, unconfigured, updateInstead). receive.denyCurrentBranch uses the function `refs_resolve_ref_unsafe()` (called via `resolve_refdup()`) to resolve the symbolic ref HEAD, but that function fails when HEAD does not point at a valid commit. As we replace the call to `refs_resolve_ref_unsafe()` with `find_shared_symref()`, which has no problem finding the worktree for a given branch even if it is unborn yet, this bug is fixed at the same time: receive.denyCurrentBranch now also handles worktrees with unborn branches as intended even while using ref namespaces. Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Hariom Verma <hariom18599@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
166 lines
5.8 KiB
Bash
Executable file
166 lines
5.8 KiB
Bash
Executable file
#!/bin/sh
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test_description='fetch/push involving ref namespaces'
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. ./test-lib.sh
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test_expect_success setup '
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git config --global protocol.ext.allow user &&
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test_tick &&
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git init original &&
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(
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cd original &&
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echo 0 >count &&
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git add count &&
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test_commit 0 &&
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echo 1 >count &&
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git add count &&
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test_commit 1 &&
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git remote add pushee-namespaced "ext::git --namespace=namespace %s ../pushee" &&
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git remote add pushee-unnamespaced ../pushee
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) &&
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commit0=$(cd original && git rev-parse HEAD^) &&
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commit1=$(cd original && git rev-parse HEAD) &&
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git init --bare pushee &&
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git init puller
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'
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test_expect_success 'pushing into a repository using a ref namespace' '
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(
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cd original &&
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git push pushee-namespaced master &&
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git ls-remote pushee-namespaced >actual &&
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printf "$commit1\trefs/heads/master\n" >expected &&
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test_cmp expected actual &&
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git push pushee-namespaced --tags &&
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git ls-remote pushee-namespaced >actual &&
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printf "$commit0\trefs/tags/0\n" >>expected &&
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printf "$commit1\trefs/tags/1\n" >>expected &&
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test_cmp expected actual &&
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# Verify that the GIT_NAMESPACE environment variable works as well
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GIT_NAMESPACE=namespace git ls-remote "ext::git %s ../pushee" >actual &&
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test_cmp expected actual &&
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# Verify that --namespace overrides GIT_NAMESPACE
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GIT_NAMESPACE=garbage git ls-remote pushee-namespaced >actual &&
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test_cmp expected actual &&
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# Try a namespace with no content
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git ls-remote "ext::git --namespace=garbage %s ../pushee" >actual &&
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test_must_be_empty actual &&
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git ls-remote pushee-unnamespaced >actual &&
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sed -e "s|refs/|refs/namespaces/namespace/refs/|" expected >expected.unnamespaced &&
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test_cmp expected.unnamespaced actual
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)
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'
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test_expect_success 'pulling from a repository using a ref namespace' '
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(
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cd puller &&
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git remote add -f pushee-namespaced "ext::git --namespace=namespace %s ../pushee" &&
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git for-each-ref refs/ >actual &&
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printf "$commit1 commit\trefs/remotes/pushee-namespaced/master\n" >expected &&
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printf "$commit0 commit\trefs/tags/0\n" >>expected &&
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printf "$commit1 commit\trefs/tags/1\n" >>expected &&
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test_cmp expected actual
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)
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'
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# This test with clone --mirror checks for possible regressions in clone
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# or the machinery underneath it. It ensures that no future change
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# causes clone to ignore refs in refs/namespaces/*. In particular, it
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# protects against a regression caused by any future change to the refs
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# machinery that might cause it to ignore refs outside of refs/heads/*
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# or refs/tags/*. More generally, this test also checks the high-level
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# functionality of using clone --mirror to back up a set of repos hosted
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# in the namespaces of a single repo.
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test_expect_success 'mirroring a repository using a ref namespace' '
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git clone --mirror pushee mirror &&
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(
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cd mirror &&
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git for-each-ref refs/ >actual &&
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printf "$commit1 commit\trefs/namespaces/namespace/refs/heads/master\n" >expected &&
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printf "$commit0 commit\trefs/namespaces/namespace/refs/tags/0\n" >>expected &&
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printf "$commit1 commit\trefs/namespaces/namespace/refs/tags/1\n" >>expected &&
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test_cmp expected actual
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)
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'
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test_expect_success 'hide namespaced refs with transfer.hideRefs' '
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GIT_NAMESPACE=namespace \
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git -C pushee -c transfer.hideRefs=refs/tags \
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ls-remote "ext::git %s ." >actual &&
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printf "$commit1\trefs/heads/master\n" >expected &&
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test_cmp expected actual
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'
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test_expect_success 'check that transfer.hideRefs does not match unstripped refs' '
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GIT_NAMESPACE=namespace \
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git -C pushee -c transfer.hideRefs=refs/namespaces/namespace/refs/tags \
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ls-remote "ext::git %s ." >actual &&
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printf "$commit1\trefs/heads/master\n" >expected &&
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printf "$commit0\trefs/tags/0\n" >>expected &&
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printf "$commit1\trefs/tags/1\n" >>expected &&
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test_cmp expected actual
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'
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test_expect_success 'hide full refs with transfer.hideRefs' '
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GIT_NAMESPACE=namespace \
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git -C pushee -c transfer.hideRefs="^refs/namespaces/namespace/refs/tags" \
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ls-remote "ext::git %s ." >actual &&
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printf "$commit1\trefs/heads/master\n" >expected &&
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test_cmp expected actual
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'
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test_expect_success 'try to update a hidden ref' '
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test_config -C pushee transfer.hideRefs refs/heads/master &&
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test_must_fail git -C original push pushee-namespaced master
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'
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test_expect_success 'try to update a ref that is not hidden' '
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test_config -C pushee transfer.hideRefs refs/namespaces/namespace/refs/heads/master &&
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git -C original push pushee-namespaced master
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'
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test_expect_success 'try to update a hidden full ref' '
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test_config -C pushee transfer.hideRefs "^refs/namespaces/namespace/refs/heads/master" &&
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test_must_fail git -C original push pushee-namespaced master
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'
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test_expect_success 'set up ambiguous HEAD' '
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git init ambiguous &&
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(
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cd ambiguous &&
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git commit --allow-empty -m foo &&
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git update-ref refs/namespaces/ns/refs/heads/one HEAD &&
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git update-ref refs/namespaces/ns/refs/heads/two HEAD &&
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git symbolic-ref refs/namespaces/ns/HEAD \
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refs/namespaces/ns/refs/heads/two
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)
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'
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test_expect_success 'clone chooses correct HEAD (v0)' '
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GIT_NAMESPACE=ns git -c protocol.version=0 \
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clone ambiguous ambiguous-v0 &&
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echo refs/heads/two >expect &&
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git -C ambiguous-v0 symbolic-ref HEAD >actual &&
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test_cmp expect actual
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'
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test_expect_success 'clone chooses correct HEAD (v2)' '
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GIT_NAMESPACE=ns git -c protocol.version=2 \
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clone ambiguous ambiguous-v2 &&
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echo refs/heads/two >expect &&
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git -C ambiguous-v2 symbolic-ref HEAD >actual &&
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test_cmp expect actual
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'
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test_expect_success 'denyCurrentBranch and unborn branch with ref namespace' '
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(
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cd original &&
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git init unborn &&
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git remote add unborn-namespaced "ext::git --namespace=namespace %s unborn" &&
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test_must_fail git push unborn-namespaced HEAD:master &&
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git -C unborn config receive.denyCurrentBranch updateInstead &&
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git push unborn-namespaced HEAD:master
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)
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'
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test_done
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