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When unpack_trees() returned an error while switching branches, we used to
stop right there, exiting without writing the index out or switching HEAD.

This is Ok when unpack_trees() returned an error because it detected
untracked files or locally modified paths that could be overwritten by
branch switching, because that error return is done before we start to
modify the work tree.  But it is undesirable if unpack_trees() already
started to update the work tree and a failure is returned because some but
not all paths are updated in the work tree, perhaps because a directory
that some files need to go in was read-only by mistake, or a file that
will be overwritten by branch switching had a mandatory lock on it and we
failed to unlink it.

This changes the behaviour upon such an error to complete the branch
switching; the files updated in the work tree will hopefully be much more
consistent with the index and HEAD derived from the switched-to branch.

We still issue error messages, and exit the command with non-zero status,
so scripted callers need to notice it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Instead of uniformly returning -1 on any error, this teaches
unpack_trees() to return -2 when the merge itself is Ok but worktree
refuses to get updated.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

These two were very similar functions with only tiny bit of difference.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Instead, have its error percolate up through the callchain and let it be
the exit status of the main command.  No semantic changes yet.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

When "git checkout -- paths..." cannot update work tree for whatever
reason, checkout_entry() correctly issued an error message for the path to
the end user, but the command ignored the error, causing the entire
command to succeed.  This fixes it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Geoffrey Irving noticed that git-cherry talks about comparing commits without
hinting how they are compared.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Consistently say so in all caps as it is customary to do so.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

It seems simpler and safer to use the BISECT_START file everywhere
to decide if we are bisecting or not, instead of using it in some
places and BISECT_NAMES in other places.

In commit 6459c7c6 (Nov 18 2007,
Bisect: use "$GIT_DIR/BISECT_NAMES" to check if we are bisecting.),
we decided to use BISECT_NAMES but code changed a lot and we now
have to check BISECT_START first in the "bisect_start" function
anyway.

This patch also makes things a little bit safer by creating
the BISECT_START file first and deleting it last, and also by
adding checks in "bisect_clean_state".
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Sync with builtin-fetch--tool.c where append_fetch_head()
honors update_local_ref() return value.

This fixes non fast forward fetch exit status,
http://bugzilla.altlinux.org/show_bug.cgi?id=15037Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

An earlier commit 633f43e1 (Remove redundant code, eliminate one static
variable, 2008-05-24) had a thinko (perhaps an eyeno) that broke
sha1_pack_index_name() function.  One symptom of this was that the http
walker is now completely broken.

This should fix it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Recent "git-svn optimization" series introduced Git::cat_blob() subroutine
whose interface was broken in that it returned the size of the blob but
signalled an error by returning 0.  You can never use an empty blob with
such an interface.

This fixes the interface to return a negative value to signal an error.

Reported by Björn Steinbrink.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

There are broken filesystems that cannot have a file whose name is "nul"
anywhere on it.  Rename the test file to make ourselves more portable.

Noticed by Mark Levedahl.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Signed-off-by: Junio C Hamano <gitster@pobox.com>

When adding files through git commit --interactive, and 'quit'
afterwards, the message in the editor of the commit message indicates
that many (maybe all) files are deleted from the tree.  Dismissing that
and running git commit afterwards does the right thing.  This commit
fixes git commit --interactive to properly update the index before
commiting.

Reported by Jiří Paleček through
 http://bugs.debian.org/480429Signed-off-by: Gerrit Pape <pape@smarden.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

There was a bug in the implementation of the "next" links in
format_paging_nav (for log and shortlog), which caused the next links
to always be displayed, even if there is no next page.  This fixes it.
Signed-off-by: Lea Wiemann <LeWiemann@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

This reverts commit cfabd6ee. I had
implemented it without understanding what --full-history does. Consider
this history:

    C--M--N
   /  /  /
  A--B  /
   \   /
    D-/

where B and C modify a path, X, in the same way so that the result is
identical, and D does not modify it at all. With the path limiter X and
without --full-history this is simplified to

   A--B

i.e. only one of the paths via B or C is chosen. I had assumed that
--full-history would keep both paths like this

    C--M
   /  /
  A--B

removing the path via D; but in fact it keeps the entire history.

Currently, git does not have the capability to simplify to this
intermediary case. However, the other extreme to keep the entire history
is not wanted either in usual cases. I think we can expect that histories
like the above are rare, and in the usual cases we want a simplified
history. So let's remove --full-history again.

(Concerning t7003, subsequent tests depend on what the test case sets up,
so we can't just back out the entire test case.)
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

The <git-rev-list args> are mandatory to git bundle create, not
optional.  The usage output of git bundle is already right on this.
Signed-off-by: Gerrit Pape <pape@smarden.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

If we use an unsupported transport (e.g., http when curl
support is not compiled in), transport_get reports an error
to the user, but we still get a transport object. We need to
manually check and abort the clone process at that point, or
we end up with a segfault.

Noticed by Thomas Rast.
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

The new "trash directory" bites again.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Signed-off-by: Karl Hasselström <kha@treskal.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

* jc/diff-no-no-index:
  git diff --no-index: default to page like other diff frontends
  git-diff: allow  --no-index semantics a bit more
  "git diff": do not ignore index without --no-index
  diff-files: do not play --no-index games
  tests: do not use implicit "git diff --no-index"

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Even when inside a git work tree, if two paths are given and at least one
is clearly outside the work tree, it cannot be a request to diff a tracked
path anyway; allow such an invocation to use --no-index semantics.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

* maint:
  Documentation: fix graph in git-rev-parse.txt
  show-branch --current: do not barf on detached HEAD

* gp/bisect-fix:
  bisect: print an error message when "git rev-list --bisect-vars" fails
  git-bisect.sh: don't accidentally override existing branch "bisect"

* git://repo.or.cz/git-gui:
  git-gui: Vertically align textboxes with labels
  git-gui: Handle workdir detection when CYGWIN=nowinsymlinks
  git-gui: Add a --trace command line option

Preformatted html and man pages show a mangled graph, caused by a
backslash.

Commit f1ec6b22 fixed this same issue,
but it seems that new versions of the Asciidoc toolchain changed their
behaviour.
Signed-off-by: Michele Ballabio <barra_cuda@katamail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

In git-gui after clicking either on 'Create New Repository' or
'Open Existing Repository' the form elements aren't centered like
they are pretty much everywhere else in the app. At least when ran
on a mac, haven't checked on other platforms.

Using grid instead of pack seems to fix this.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

The code assumed that there always is the current branch, but the result
from resolve_ref() on detached HEAD does not even start with "refs/heads/".

Originally noticed and fixed by Stephan Beyer.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Noticed by Hannes, reported by Dscho.
Signed-off-by: Junio C Hamano <gitster@pobox.com>

This patch adds an option to make hg-to-git quiet by default.  Note:
it only suppresses those messages that would be printed when everything
was up-to-date.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Acked-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Signed-off-by: Junio C Hamano <gitster@pobox.com>

* maint:
  builtin-fast-export: Only output a single parent per line
  Release Notes for 1.5.5.2

Conflicts:

	RelNotes

* jk/maint-send-email-compose:
  send-email: rfc2047-quote subject lines with non-ascii characters
  send-email: specify content-type of --compose body

* hb/maint-send-email-quote-recipients:
  Fix recipient santitization

* maint-1.5.4:
  builtin-fast-export: Only output a single parent per line

According to the git-fast-import man-page, you can only put a single
committish per merge: line, like this:

  merge :10
  merge :11

However, git-fast-export puts all parents on a single line, like this:

  merge :10 :11

This changes fast-export to output a single parent per line.  Otherwise
neither git-fast-import nor bzr-fast-import can read its output.

[jc: fix-up to remove excess LF in the output that makes fast-import barf]
Signed-off-by: Pieter de Bie <pdebie@ai.rug.nl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Signed-off-by: Junio C Hamano <gitster@pobox.com>

If the hook gets invoked with identical old and new ids there
is no change taking place.  We probably should not have been
called, but instead of failing silently allow the no-op.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>