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Author SHA1 Message Date
James Denholm
6f1871fe0f contrib/subtree: allow adding an annotated tag
cmd_add_commit() is passed FETCH_HEAD by cmd_add_repository, which
is then rev-parsed into an object name.  However, if the user is
fetching a tag rather than a branch HEAD, such as by executing:

  $ git subtree add -P oldGit https://github.com/git/git.git tags/v1.8.0

the object name refers to a tag and is never peeled, and the git
commit-tree call (line 561) slaps us in the face because it doesn't
peel tags to commits.

Because peeling a committish doesn't do anything if it's already a
commit, fix by peeling the object name before assigning it to $rev
using peel_committish() from git:git-sh-setup.sh, a pre-existing
dependency of git-subtree.

Reported-by: Kevin Cagle <kcagle@micron.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: James Denholm <nod.helm@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-13 12:33:26 -07:00
Junio C Hamano
6308767f0b Merge branch 'fc/prompt-zsh-read-from-file'
* fc/prompt-zsh-read-from-file:
  contrib: completion: fix 'eread()' namespace
2014-05-13 11:53:14 -07:00
Felipe Contreras
66ab301c16 contrib: completion: fix 'eread()' namespace
Otherwise it might collide with a function of the same name in the
user's environment.

Suggested-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-13 11:52:51 -07:00
William Giokas
20c4fbf97d svn-fe: conform to pep8
Quite a large change, most of this was whitespace changes, though there
were a few places where I removed a comma or added a few characters.
Should pass through pep8 and pass every test.

Signed-off-by: William Giokas <1007380@gmail.com>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-12 13:42:52 -07:00
Jeff King
77583e7739 index-pack: distinguish missing objects from type errors
When we fetch a pack that does not contain an object we
expected to receive, we get an error like:

  $ git init --bare tmp.git && cd tmp.git
  $ git fetch ../parent.git
  [...]
  error: Could not read 964953ec7bcc0245cb1d0db4095455edd21a2f2e
  fatal: Failed to traverse parents of commit b8247b40caf6704fe52736cdece6d6aae87471aa
  error: ../parent.git did not send all necessary objects

This comes from the check_everything_connected rev-list. If
we try cloning the same repo (rather than a fetch), we end
up using index-pack's --check-self-contained-and-connected
option instead, which produces output like:

  $ git clone --no-local --bare parent.git tmp.git
  [...]
  fatal: object of unexpected type
  fatal: index-pack failed

Not only is the sha1 missing, but it's a misleading message.
There's no type problem, but rather a missing object
problem; we don't notice the difference because we simply
compare OBJ_BAD != OBJ_BLOB.  Let's provide a different
message for this case:

  $ git clone --no-local --bare parent.git tmp.git
  fatal: did not receive expected object 6b00a8c61ed379d5f925a72c1987c9c52129d364
  fatal: index-pack failed

While we're at it, let's also improve a true type mismatch
error to look like

  fatal: object 6b00a8c61ed379d5f925a72c1987c9c52129d364: expected type blob, got tree

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-12 11:27:50 -07:00
Torsten Bögershausen
9c94389c3e utf8: make it easier to auto-update git_wcwidth()
The function git_wcwidth() returns for a given unicode code point the
width on the display:

 -1 for control characters,
  0 for combining or other non-visible code points
  1 for e.g. ASCII
  2 for double-width code points.

This table had been originally been extracted for one Unicode
version, probably 3.2.

We now use two tables these days, one for zero-width and another for
double-width.  Make it easier to update these tables to a later
version of Unicode by factoring out the table from utf8.c into
unicode_width.h and add the script update_unicode.sh to update the
table based on the latest Unicode specification files.

Thanks to Peter Krefting <peter@softwolves.pp.se> and Kevin Bracey
<kevin@bracey.fi> for helping with their Unicode knowledge.

Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-12 10:38:01 -07:00
Torsten Bögershausen
08460345b5 utf8.c: use a table for double_width
Refactor git_wcwidth() and replace the if-else-if chain.
Use the table double_width which is scanned by the bisearch() function,
which is already used to find combining code points.

Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-12 10:20:46 -07:00
Jeff King
a1a301114e t/lib-httpd: require SANITY prereq
Our test httpd setup will not generally run as root, because
Apache will want to setuid, and we do not set up the "User"
config directive. On some systems, like current Debian
unstable, Apache fails to start, and we skip the tests:

    $ sudo ./t5539-fetch-http-shallow.sh --debug
    1..0 # SKIP web server setup failed
    $ cat trash*t5539*/httpd/error.log
    [...]
    (22)Invalid argument: AH00024: Couldn't set permissions on
      the rewrite-map mutex; check User and Group directives
    AH00016: Configuration Failed

However, on other systems (reportedly Ubuntu 11.04), Apache
seems to start, and then bails during our tests with:

   getpwuid: couldn't determine user name from uid 4294967295,
     you probably need to modify the User directive
   Child 12037 returned a Fatal error...  Apache is exiting!

This may be related to the pre-fork/threading model in use
(note that the second one complains of the child dying).
However, it's not even worth investigating; in either case
we just want to skip the tests, and we already recommend
against running the test suite as root. Let's just
explicitly check this condition and skip the tests rather
than expecting Apache to do the right thing.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-12 10:19:23 -07:00
Junio C Hamano
998f84075a Merge git://github.com/git-l10n/git-po
* git://github.com/git-l10n/git-po:
  l10n: Updated Bulgarian translation of git (1307t0f921u)
2014-05-12 10:12:05 -07:00
Alexander Shopov
1c3c8410ef l10n: Updated Bulgarian translation of git (1307t0f921u)
Signed-off-by: Alexander Shopov <ash@kambanaria.org>
2014-05-11 17:09:01 +03:00
Jonathan Nieder
502b0a1ad1 contrib: remove git-diffall
The functionality of the "git diffall" script in contrib/ was
incorporated into "git difftool" when the --dir-diff option was added
in v1.7.11 (ca. June, 2012).  Once difftool learned those features,
the diffall script became obsolete.

The only difference in behavior is that when comparing to the working
tree, difftool copies any files modified by the user back to the
working tree when the diff tool exits.  "git diffall" required the
--copy-back option to do the same.  All other diffall options have the
same meaning in difftool.

Make life easier for people choosing a tool to use by removing the old
diffall script.  A pointer in the release notes should be enough to
help current users migrate.

Helped-by: Tim Henigan <tim.henigan@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-09 13:30:17 -07:00
Junio C Hamano
b28aeab4ec Git 2.0-rc3 2014-05-09 11:23:55 -07:00
Jonathan Nieder
7d445f518e contrib: remove vim support instructions
The git support scripts started shipping in upstream vim in version
7.2 (2008-08-09).  Clean up contrib/ a little by removing the
instructions for people on older versions of vim.

RHEL 6 already has vim 7.2.something, so anyone on a reasonably modern
operating system should not be affected.  Users on RHEL 5 presumably
know that means sometimes missing out on niceties like syntax
highlighting, so this should be safe.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-09 11:17:21 -07:00
Junio C Hamano
7234af6e7b Sync with 1.9.3 2014-05-09 11:00:48 -07:00
Junio C Hamano
eea591373e Git 1.9.3
The third maintenance release for Git 1.9; contains all the fixes
that are scheduled to appear in Git 2.0 since 1.9.2.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-09 10:59:07 -07:00
brian m. carlson
4d4813a52f blame: correctly handle files regardless of autocrlf
If a file contained CRLF line endings in a repository with
core.autocrlf=input, then blame always marked lines as "Not
Committed Yet", even if they were unmodified.  Don't attempt to
convert the line endings when creating the fake commit so that blame
works correctly regardless of the autocrlf setting.

Reported-by: Ephrim Khong <dr.khong@gmail.com>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08 14:43:49 -07:00
David Turner
baa37bff9a mv: allow renaming to fix case on case insensitive filesystems
"git mv hello.txt Hello.txt" on a case insensitive filesystem
always triggers "destination already exists" error, because these
two names refer to the same path from the filesystem's point of
view, and requires the user to give "--force" when correcting the
case of the path recorded in the index and in the next commit.

Detect this case and allow it without requiring "--force".

Signed-off-by: David Turner <dturner@twitter.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08 14:34:00 -07:00
Ronnie Sahlberg
482b8f3208 checkout.c: use ref_exists instead of file_exist
Change checkout.c to check if a ref exists instead of checking if a loose ref
file exists when deciding if to delete an orphaned log file. Otherwise, if a
ref only exists as a packed ref without a corresponding loose ref for the
currently checked out branch, we risk that the reflog will be deleted when we
switch to a different branch.

Update the reflog tests to check for this bug.

The following reproduces the bug:
$ git init-db
$ git config core.logallrefupdates true
$ git commit -m Initial --allow-empty
    [master (root-commit) bb11abe] Initial
$ git reflog master
    [8561dcb master@{0}: commit (initial): Initial]
$ find .git/{refs,logs} -type f | grep master
    [.git/refs/heads/master]
    [.git/logs/refs/heads/master]
$ git branch foo
$ git pack-refs --all
$ find .git/{refs,logs} -type f | grep master
    [.git/logs/refs/heads/master]
$ git checkout foo
$ find .git/{refs,logs} -type f | grep master
    ... reflog file is missing ...
$ git reflog master
    ... nothing ...

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Acked-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08 14:31:44 -07:00
Ronnie Sahlberg
4da588357a refs.c: add new functions reflog_exists and delete_reflog
Add two new functions, reflog_exists and delete_reflog, to hide the internal
reflog implementation (that they are files under .git/logs/...) from callers.
Update checkout.c to use these functions in update_refs_for_switch instead of
building pathnames and calling out to file access functions. Update reflog.c
to use these to check if the reflog exists. Now there are still many places
in reflog.c where we are still leaking the reflog storage implementation but
this at least reduces the number of such dependencies by one. Finally
change two places in refs.c itself to use the new function to check if a ref
exists or not isntead of build-path-and-stat(). Now, this is strictly not all
that important since these are in parts of refs that are implementing the
actual file storage backend but on the other hand it will not hurt either.

Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Acked-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08 14:31:43 -07:00
Stepan Kasal
0170a3c6ee Revert "submodules: fix ambiguous absolute paths under Windows"
This reverts commit 4dce7d9b40,
which was originally done to help Windows but was almost
immediately reverted in msysGit, and the codebase kept this
unnecessary divergence for almost two years.

Signed-off-by: Stepan Kasal <kasal@ucw.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08 13:57:11 -07:00
Junio C Hamano
d30acb71ca Sync with maint
* maint:
  shell doc: remove stray "+" in example
  Start preparing for 1.9.3
2014-05-08 11:59:51 -07:00
Jonathan Nieder
e28dcdce13 shell doc: remove stray "+" in example
The git-shell(1) manpage says

	EXAMPLE
	       To disable interactive logins, displaying a greeting
		instead:

		+

		   $ chsh -s /usr/bin/git-shell
		   $ mkdir $HOME/git-shell-commands
[...]

The stray "+" has been there ever since the example was added in
v1.8.3-rc0~210^2 (shell: new no-interactive-login command to print a
custom message, 2013-03-09).  The "+" sign between paragraphs is
needed in asciidoc to attach extra paragraphs to a list item but here
it is not needed and ends up rendered as a literal "+".  Remove it.

A quick search with "grep -e '<p>+' /usr/share/doc/git/html/*.html"
doesn't find any other instances of this problem.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08 10:26:26 -07:00
Junio C Hamano
2b141241bf Merge git://github.com/git-l10n/git-po
* 'master' of git://github.com/git-l10n/git-po:
  l10n: Fix a couple of typos in the Swedish translation
2014-05-08 10:25:37 -07:00
Junio C Hamano
86ae051274 Start preparing for 1.9.3
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-08 10:05:22 -07:00
Junio C Hamano
bd51339355 Merge branch 'cl/p4-use-diff-tree' into maint
"git p4" dealing with changes in binary files were broken by a
change in 1.9 release.

* cl/p4-use-diff-tree:
  git-p4: format-patch to diff-tree change breaks binary patches
2014-05-08 10:01:32 -07:00
Junio C Hamano
6eca9c0e87 Merge branch 'rh/prompt-pcmode-avoid-eval-on-refname' into maint
The shell prompt script (in contrib/), when using the PROMPT_COMMAND
interface, used an unsafe construct when showing the branch name in
$PS1.

* rh/prompt-pcmode-avoid-eval-on-refname:
  git-prompt.sh: don't put unsanitized branch names in $PS1
2014-05-08 10:01:18 -07:00
Junio C Hamano
e79fcfcd3f Merge branch 'km/avoid-non-function-return-in-rebase' into maint
"git rebase" used a POSIX shell construct FreeBSD /bin/sh does not
work well with.

* km/avoid-non-function-return-in-rebase:
  Revert "rebase: fix run_specific_rebase's use of "return" on FreeBSD"
  rebase: avoid non-function use of "return" on FreeBSD
2014-05-08 10:01:06 -07:00
Junio C Hamano
e230cd861b Merge branch 'tb/unicode-6.3-zero-width' into maint
Some more Unicode codepoints defined in Unicode 6.3 as having zero
width have been taught to our display column counting logic.

* tb/unicode-6.3-zero-width:
  utf8.c: partially update to version 6.3
2014-05-08 10:00:45 -07:00
Junio C Hamano
16fefdc3eb Merge branch 'km/avoid-bs-in-shell-glob' into maint
Some tests used shell constructs that did not work well on FreeBSD

* km/avoid-bs-in-shell-glob:
  test: fix t5560 on FreeBSD
2014-05-08 10:00:36 -07:00
Junio C Hamano
73edc54e90 Merge branch 'km/avoid-cp-a' into maint
Some tests used shell constructs that did not work well on FreeBSD

* km/avoid-cp-a:
  test: fix t7001 cp to use POSIX options
2014-05-08 09:59:41 -07:00
Junio C Hamano
1dc51c663c Update draft release notes for 2.0
Describe one last minute one-liner fix for regression introduced in
1.9, and fix a grave mischaracterization on a recent remote-hg/bzr
change, pointed out by Felipe.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-07 15:51:17 -07:00
Junio C Hamano
ccfa587787 Merge branch 'cl/p4-use-diff-tree'
Fixes a regression in 1.9.0 with an obviously correct single-liner.

* cl/p4-use-diff-tree:
  git-p4: format-patch to diff-tree change breaks binary patches
2014-05-07 14:39:29 -07:00
Thorsten Glaser
d78f340ed6 builtin/tag.c: show tag name to hint in the message editor
Display the tag name about to be added to the user during interactive
editing.

Signed-off-by: Thorsten Glaser <tg@debian.org>
Signed-off-by: Richard Hartmann <richih@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-07 14:25:25 -07:00
David Turner
ae352c7f37 merge-recursive.c: fix case-changing merge bug
On a case-insensitive filesystem, when merging, a file would be
wrongly deleted from the working tree if an incoming commit had
renamed it changing only its case.  When merging a rename, the file
with the old name would be deleted -- but since the filesystem
considers the old name to be the same as the new name, the new
file would in fact be deleted.

We avoid this by not deleting files that have a case-clone in the
index at stage 0.

Signed-off-by: David Turner <dturner@twitter.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-07 13:53:10 -07:00
Matthieu Moy
b3275838d9 pager: remove 'S' from $LESS by default
By default, Git used to set $LESS to -FRSX if $LESS was not set by
the user. The FRX flags actually make sense for Git (F and X because
sometimes the output Git pipes to less is short, and R because Git
pipes colored output). The S flag (chop long lines), on the other
hand, is not related to Git and is a matter of user preference. Git
should not decide for the user to change LESS's default.

More specifically, the S flag harms users who review untrusted code
within a pager, since a patch looking like:

    -old code;
    +new good code; [... lots of tabs ...] malicious code;

would appear identical to:

    -old code;
    +new good code;

Users who prefer the old behavior can still set the $LESS environment
variable to -FRSX explicitly, or set core.pager to 'less -S'.

The documentation in config.txt is made a bit longer to keep both an
example setting the 'S' flag (needed to recover the old behavior)
and an example showing how to unset a flag set by Git.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-07 13:41:04 -07:00
Felipe Contreras
7d7d680221 silence a bunch of format-zero-length warnings
This can be observed in many versions of gcc and still exists with 4.9.0:

  wt-status.c: In function ‘wt_status_print_unmerged_header’:
  wt-status.c:191:2: warning: zero-length gnu_printf format string [-Wformat-zero-length]
    status_printf_ln(s, c, "");
    ^

The user have long been told to pass -Wno-format-zero-length, but a
patch that avoids warning altogether is not too noisy, so let's do
so.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-07 11:20:54 -07:00
Jeff King
26ecfe3e20 grep: use run-command's "dir" option for --open-files-in-pager
Git generally changes directory to the repository root on
startup.  When running "grep --open-files-in-pager" from a
subdirectory, we chdir back to the original directory before
running the pager, so that we can feed the relative
pathnames to the pager.

We currently do this chdir manually, but we can ask
run_command to do it for us. This is fewer lines of code,
and as a bonus, the chdir is limited to the child process,
which avoids any unexpected surprises for code running after
the pager (there isn't any currently, but this is
future-proofing).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-07 10:40:01 -07:00
Tolga Ceylan
749b668c7d git-p4: format-patch to diff-tree change breaks binary patches
When applying binary patches a full index is required. format-patch
already handles this, but diff-tree needs '--full-index' argument
to always output full index. When git-p4 runs git-apply to test
the patch, git-apply rejects the patch due to abbreviated blob
object names. This is the error message git-apply emits in this
case:

    error: cannot apply binary patch to '<filename>' without full index line
    error: <filename>: patch does not apply

Signed-off-by: Tolga Ceylan <tolga.ceylan@gmail.com>
Acked-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-07 10:27:22 -07:00
Peter Krefting
80dad719fb l10n: Fix a couple of typos in the Swedish translation
Thanks-to: Anders Jonsson <anders.jonsson@norsjovallen.se>
Signed-off-by: Peter Krefting <peter@softwolves.pp.se>
2014-05-07 07:06:37 +01:00
Øyvind A. Holm
1c65d3b9d3 RelNotes/2.0.0: Grammar and typo fixes
Signed-off-by: Øyvind A. Holm <sunny@sunbase.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 17:05:34 -07:00
James Denholm
602efc4f90 contrib/subtree/Makefile: clean up rule for "clean"
git:Documentation/Makefile and others establish "RM ?= rm -f" as a
convention for rm calls in clean rules, hence follow this convention
instead of simply forcing clean to use rm.

subproj and mainline no longer need to be removed in clean, as they are
no longer created in git:contrib/subtree by "make test". Hence, remove
the rm call for those folders.

Other makefiles don't remove "*~" files, remove the rm call to prevent
unexpected behaviour in the future. Similarly, clean doesn't remove the
installable file, so rectify this.

Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: James Denholm <nod.helm@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 15:36:17 -07:00
James Denholm
c7abbb9863 contrib/subtree/Makefile: clean up rules to generate documentation
git:Documentation/Makefile establishes asciidoc/xmlto calls as being
handled through their appropriate variables, Hence, change to bring into
congruency with.

Similarly, MANPAGE_XSL exists in git:Documentation/Makefile, while
MANPAGE_NORMAL_XSL does not outside contrib/subtree. Hence, replace
MANPAGE_NORMAL_XSL with MANPAGE_XSL.

Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: James Denholm <nod.helm@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 15:35:52 -07:00
James Denholm
2c45009b73 contrib/subtree/Makefile: s/libexecdir/gitexecdir/
$(libexecdir) isn't used anywhere else in the project, while
$(gitexecdir) is the standard in the other appropriate makefiles. Hence,
replace the former with the latter.

Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: James Denholm <nod.helm@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 15:35:41 -07:00
James Denholm
8e2a5ccad1 contrib/subtree/Makefile: use GIT-VERSION-FILE
GVF is already being used in most/all other makefiles in the project,
and has been for _quite_ a while. Hence, drop file-unique gitver and
replace with GIT_VERSION.

Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: James Denholm <nod.helm@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 15:35:31 -07:00
Brian Gesiak
10f5b034b6 api-strbuf.txt: add docs for _trim and _ltrim
API documentation for strbuf does not document strbuf_trim() or
strbuf_ltrim(). Add documentation for these two functions.

Signed-off-by: Brian Gesiak <modocache@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 15:33:58 -07:00
Brian Gesiak
3bb55e8aa8 strbuf: use _rtrim and _ltrim in strbuf_trim
strbuf_trim() strips whitespace from the end, then the beginning of
a strbuf.  Those operations are duplicated in strbuf_rtrim() and
strbuf_ltrim().

Replace strbuf_trim() implementation with calls to strbuf_rtrim(),
then strbuf_ltrim().

Signed-off-by: Brian Gesiak <modocache@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 15:33:39 -07:00
David Kastrup
4874f544f1 Bump core.deltaBaseCacheLimit to 96m
The default of 16m causes serious thrashing for large delta chains
combined with large files.

Here are some benchmarks (pu variant of git blame):

time git blame -C src/xdisp.c >/dev/null

for a repository of Emacs repacked with git gc --aggressive (v1.9,
resulting in a window size of 250) located on an SSD drive.  The file in
question has about 30000 lines, 1Mb of size, and a history with about
2500 commits.

    16m (previous default):
    real	3m33.936s
    user	2m15.396s
    sys	1m17.352s

    32m:
    real	3m1.319s
    user	2m8.660s
    sys	0m51.904s

    64m:
    real	2m20.636s
    user	1m55.780s
    sys	0m23.964s

    96m:
    real	2m5.668s
    user	1m50.784s
    sys	0m14.288s

    128m:
    real	2m4.337s
    user	1m50.764s
    sys	0m12.832s

    192m:
    real	2m3.567s
    user	1m49.508s
    sys	0m13.312s

Signed-off-by: David Kastrup <dak@gnu.org>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 15:32:21 -07:00
Jeff King
ff0a80af72 let clang use the constant-return error() macro
Commit e208f9c converted error() into a macro to make its
constant return value more apparent to calling code.  Commit
5ded807 prevents us using this macro with clang, since
clang's -Wunused-value is smart enough to realize that the
constant "-1" is useless in some contexts.

However, since the last commit puts the constant behind an
inline function call, this is enough to prevent the
-Wunused-value warning on both modern gcc and clang. So we
can now re-enable the macro when compiling with clang.

Tested with clang 3.3, 3.4, and 3.5.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 15:30:40 -07:00
Jeff King
87fe5df365 inline constant return from error() function
Commit e208f9c introduced a macro to turn error() calls
into:

  (error(), -1)

to make the constant return value more visible to the
calling code (and thus let the compiler make better
decisions about the code).

This works well for code like:

  return error(...);

but the "-1" is superfluous in code that just calls error()
without caring about the return value. In older versions of
gcc, that was fine, but gcc 4.9 complains with -Wunused-value.

We can work around this by encapsulating the constant return
value in a static inline function, as gcc specifically
avoids complaining about unused function returns unless the
function has been specifically marked with the
warn_unused_result attribute.

We also use the same trick for config_error_nonbool and
opterror, which learned the same error technique in a469a10.

Reported-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 15:30:38 -07:00
Eric Wong
daa22c6f8d config: preserve config file permissions on edits
Users may already store sensitive data such as imap.pass in
.git/config; making the file world-readable when "git config"
is called to edit means their password would be compromised
on a shared system.

[v2: updated for section renames, as noted by Junio]

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-06 12:23:58 -07:00