git-gui: use vcompare when comparing the git version

Since git 2.0.0 starting git gui in a submodule using a gitfile fails with
the following error:

   No working directory ../../../<path>

   couldn't change working directory
   to "../../../<path>": no such file or
   directory

This is because "git rev-parse --show-toplevel" is only run when git gui
sees a git version of at least 1.7.0 (which is the version in which the
--show-toplevel option was introduced). But it uses vsatisfies to check
that, which is documented to return false when the major version changes,
which is not what we want here.

Change vsatisfies to vcompare when testing for a git version to avoid the
problem when the major version changes (but still use vsatisfies in those
places where the Tk version is checked). This is done for both the place
that caused the reported bug and another spot where the git version is
tested for another feature.

Reported-by: Chris Packham <judge.packham@gmail.com>
Reported-by: Yann Dirson <ydirson@free.fr>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Revert "Merge branch 'fc/transport-helper-sync-error-fix'"

This reverts commit d508e4a8e2391ae2596403b6478d01cf3d5f928f,
reversing changes made to e42552135a2a396f37053a89f44952ea907870b2.

The author of the original topic says he broke the upcoming 2.0
release with something that relates to "synchronization crash
regression" while refusing to give further specifics, so this would
unfortunately be the safest option for the upcoming release.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
request-pull: resurrect for-linus -> tags/for-linus DWIM

Older versions of Git before v1.7.10 did not DWIM

    $ git pull $URL for-linus

to the tag "tags/for-linus" and the users were required to say

    $ git pull $URL tags/for-linus

instead.  Because newer versions of Git works either way,
request-pull used to show tags/for-linus when asked

    $ git request-pull origin/master $URL for-linus

The recent updates broke this and in the output we see "for-linus"
without the "tags/" prefix.

As v1.7.10 is more than 2 years old, this should matter very little
in practice, but resurrecting it is very simple.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
contrib: remote-helpers: add move warnings (v2.0)

The tools are now maintained out-of-tree, and they have a regression
in v2.0. It's better to start warning the users as soon as possible.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
remote-helpers: point at their upstream repositories

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'jl/vcompare-makes-2.0-satisify-1.7-or-later' into next

Last minute fix for a showstopper to git-gui.

* jl/vcompare-makes-2.0-satisify-1.7-or-later:
  git-gui: use vcompare when comparing the git version
Merge branch 'lt/request-pull' into next

Regression fix, hopefully the last finishing touch.

* lt/request-pull:
  request-pull: resurrect for-linus -> tags/for-linus DWIM
Merge branch 'jc/graduate-remote-hg-bzr' into next

* jc/graduate-remote-hg-bzr:
  remote-helpers: point at their upstream repositories
  contrib: remote-helpers: add move warnings (v2.0)
  Revert "Merge branch 'fc/transport-helper-sync-error-fix'"
fr: a lot of good fixups

Signed-off-by: Grégoire Paris <postmaster@greg0ire.fr>
Acked-by: Jean-Noel Avila <jn.avila@free.fr>
git-gui: tolerate major version changes when comparing the git version

Since git 2.0.0 starting git gui in a submodule using a gitfile fails with
the following error:

   No working directory ../../../<path>

   couldn't change working directory
   to "../../../<path>": no such file or
   directory

This is because "git rev-parse --show-toplevel" is only run when git gui
sees a git version of at least 1.7.0 (which is the version in which the
--show-toplevel option was introduced). But "package vsatisfies" returns
false when the major version changes, which is not what we want here.

Fix that for both places where the git version is checked using vsatisfies
by appending a '-' to the version number. This tells vsatisfies that a
change of the major version is not considered to be a problem, as long as
the new major version is larger. This is done for both the place that
caused the reported bug and another spot where the git version is tested
for another feature.

Reported-by: Chris Packham <judge.packham@gmail.com>
Reported-by: Yann Dirson <ydirson@free.fr>
Helped-by: Pat Thoyts <patthoyts@users.sourceforge.net>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Tested-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation/technical/api-hashmap: remove source highlighting

The highlighting was pretty, but unfortunately, the failure mode
when source-highlight is not installed was that the entire code
block disappears.

See https://bugs.debian.org/745591,
    https://bugs.launchpad.net/bugs/1316810.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'kb/fast-hashmap'

* kb/fast-hashmap:
  Documentation/technical/api-hashmap: remove source highlighting
Merge git://github.com/git-l10n/git-po

* git://github.com/git-l10n/git-po:
  fr: a lot of good fixups
Merge branch 'jl/use-vsatisfy-correctly-for-2.0'

* jl/use-vsatisfy-correctly-for-2.0:
  git-gui: tolerate major version changes when comparing the git version
Merge branch 'lt/request-pull'

* lt/request-pull:
  request-pull: resurrect for-linus -> tags/for-linus DWIM
replace: make sure --edit results in a different object

It's a bad idea to create a replace ref for an object
that points to the original object itself.

That's why we have to check if the result from editing
the original object is a different object and error out
if it isn't.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
replace: refactor checking ref validity

This will be useful in a following commit when we will
want to check if the ref already exists before we let the
user edit an object.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
replace: die early if replace ref already exists

If a replace ref already exists for an object, it is
much better for the user if we error out before we
let the user edit the object, rather than after.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
replace: add tests for --edit

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
replace: add --edit to usage string

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>