Max Horn <m...@quendi.de> writes:
> Mercurial can have bookmarks pointing to "nullid" (the empty root
> revision), while Git can not have references to it.
> When cloning or fetching from a Mercurial repository that has such a
> bookmark, the import will fail because git-remote-hg will not be able to
> create the corresponding reference.
>
> Warn the user about the invalid reference, and continue the import,
> instead of stopping right away.
The text above is identical to what Antoine wrote in e8d48743
(remote-hg: do not fail on invalid bookmarks, 2013-12-29); I'd
assume that this is to replace it.
But the code seems to do more, and I think that is related to the
detailed analysis you dug up from the archive earlier and then
summarised in your $gmane/244440. Can you say a bit more about
these fake-bmark and bmark checking like you did in that original
3-patch series?
Thanks.
> Also add some test cases for this issue.
>
> Reported-by: Antoine Pelisse <apeli...@gmail.com>
> Signed-off-by: Max Horn <m...@quendi.de>
> ---
> contrib/remote-helpers/git-remote-hg | 6 +++++
> contrib/remote-helpers/test-hg.sh | 48
> ++++++++++++++++++++++++++++++++++++
> 2 files changed, 54 insertions(+)
>
> diff --git a/contrib/remote-helpers/git-remote-hg
> b/contrib/remote-helpers/git-remote-hg
> index eb89ef6..49b2c2e 100755
> --- a/contrib/remote-helpers/git-remote-hg
> +++ b/contrib/remote-helpers/git-remote-hg
> @@ -625,6 +625,12 @@ def list_head(repo, cur):
> def do_list(parser):
> repo = parser.repo
> for bmark, node in bookmarks.listbookmarks(repo).iteritems():
> + if node == '0000000000000000000000000000000000000000':
> + if fake_bmark == 'default' and bmark == 'master':
> + pass
> + else:
> + warn("Ignoring invalid bookmark '%s'", bmark)
> + continue
> bmarks[bmark] = repo[node]
>
> cur = repo.dirstate.branch()
> diff --git a/contrib/remote-helpers/test-hg.sh
> b/contrib/remote-helpers/test-hg.sh
> index a933b1e..8d01b32 100755
> --- a/contrib/remote-helpers/test-hg.sh
> +++ b/contrib/remote-helpers/test-hg.sh
> @@ -772,4 +772,52 @@ test_expect_success 'remote double failed push' '
> )
> '
>
> +test_expect_success 'clone remote with master null bookmark' '
> + test_when_finished "rm -rf gitrepo* hgrepo*" &&
> +
> + (
> + hg init hgrepo &&
> + cd hgrepo &&
> + echo a >a &&
> + hg add a &&
> + hg commit -m a &&
> + hg bookmark -r null master
> + ) &&
> +
> + git clone "hg::hgrepo" gitrepo &&
> + check gitrepo HEAD a
> +'
> +
> +test_expect_success 'clone remote with default null bookmark' '
> + test_when_finished "rm -rf gitrepo* hgrepo*" &&
> +
> + (
> + hg init hgrepo &&
> + cd hgrepo &&
> + echo a >a &&
> + hg add a &&
> + hg commit -m a &&
> + hg bookmark -r null -f default
> + ) &&
> +
> + git clone "hg::hgrepo" gitrepo &&
> + check gitrepo HEAD a
> +'
> +
> +test_expect_success 'clone remote with generic null bookmark' '
> + test_when_finished "rm -rf gitrepo* hgrepo*" &&
> +
> + (
> + hg init hgrepo &&
> + cd hgrepo &&
> + echo a >a &&
> + hg add a &&
> + hg commit -m a &&
> + hg bookmark -r null bmark
> + ) &&
> +
> + git clone "hg::hgrepo" gitrepo &&
> + check gitrepo HEAD a
> +'
> +
> test_done
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