decorate: document API

Ever since 530e741c726a (Start preparing the API documents.,
2007-11-24) added a placeholder to describe the various APIs,
the decorate API was never documented.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
decorate: add "clear_decoration()"

So far, all the users of the decoration API used decoration that
only grows and discarded at the end of the program execution.

Introduce for_each_decoration() that lets the caller iterate over
all defined decorations and use it to implement clear_decoration()
function.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
transport-helper: report errors properly

If a push fails because the remote-helper died (with fast-export), the
user won't see any error message. So let's add one.

At the same time lets add tests to ensure this error is reported, and
while we are at it, check the error from fast-import

Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
cherry-pick: better error message when the parameter is a non-commit

When copy&paste goes wrong, and the user e.g. tries to cherry-pick a
blob, the error message used to be:

	fatal: BUG: expected exactly one commit from walk

Instead, now it is:

	fatal: Can't cherry-pick a blob

Signed-off-by: Miklos Vajna <vmiklos@suse.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
merge-tree: don't print entries that match "local"

The documentation says:

	the output from the command omits entries that match the
	<branch1> tree.

But currently "added in branch1" and "removed in branch1" (both while
unchanged in branch2) do print output.  Change this so that the
behaviour matches the documentation.

Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: trivial cleanups

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: add missing config variable in doc

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: properly report errors on bookmark pushes

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: fix for files with spaces

Set the maximum number of splits to make when dividing the diff stat
lines based on space characters.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: make sure fake bookmarks are updated

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: trivial test cleanups

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: redirect buggy mercurial output

Mercurial emits messages like "searching for changes", "no changes
found", etc. meant for the use of its own UI layer, which break the pipe
between transport helper and remote helper.

Since there's no way to silence Mercurial, let's redirect to standard
error.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: split bookmark handling

Will be useful for remote bookmarks.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: refactor export

No functional changes.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: update remote bookmarks

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: update tags globally

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: push to the appropriate branch

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: force remote push

Ideally we shouldn't do this, as it's not recommended in mercurial
documentation, but there's no other way to push multiple bookmarks (on
the same branch), which would be the behavior most similar to git.

At the same time, add a configuration option for the people that don't
want to risk creating new remote heads.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: show more proper errors

When cloning or pushing fails, we don't want to show a stack-trace.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-hg: add basic author tests

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>