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1748 Коммитов

Автор SHA1 Сообщение Дата
Jeff King 47eb28ec0c Makefile: do not replace @@GIT_USER_AGENT@@ in scripts
No scripts actually care about this replacement. This was
erroneously added by 42dcbb7 (version: add git_user_agent function,
2012-06-02).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-09 07:57:29 -07:00
Jeff King c0219dd5d8 Makefile: apply dependencies consistently to sparse/asm targets
When a C file "foo.c" depends on a generated header file, we
note the dependency for the "foo.o" target. However, we
should also note it for other targets that are built from
foo.c, like "foo.sp" and "foo.s". These tend to be missed
because the latter two are not part of the default build,
and are typically built after a regular build which will
generate the header.  Let's be consistent about including
them in dependencies.

This also makes us more consistent with nearby lines which
tack on EXTRA_CPPFLAGS when building certain files.  These
flags may sometimes require extra dependencies to be added
(e.g., like GIT-VERSION-FILE; this is not the case for any
of the updated lines in this patch, but it is establishing a
style that will be used in later patches). Technically the
".sp" and ".s" targets do not care about these dependencies,
because they are force-built (".sp" because it is a phony
target, and ".s" because we explicitly force a rebuild).

Since the blocks in question are about communicating "things
built from foo.c depend on these flags", it frees the reader
from having to know or care more about how those targets are
implemented, and why it is OK for only "foo.o" to depend on
GIT-VERSION-FILE while "foo.sp" and "foo.s" both are
impacted by $(GIT_VERSION). And it helps future-proof us if
those force-build details should ever change.

This patch explicitly does not update the static header
dependencies used when COMPUTED_HEADER_DEPENDENCIES is off.
They are similar to the GIT-VERSION-FILE case above, in that
technically "foo.s" would depend on its included headers,
but it is irrelevant because we force-build it anyway. So it
would be tempting to update them in the same way (for
readability and future-proofing). However, those rules are
meant as a fallback to the computed header dependencies,
which do not handle ".s" and ".sp" at all (and are a much
harder problem to solve, as gcc is the one generating those
dependency lists).

So let's leave that harder problem until (and if) somebody
wants to change the ".sp" and ".s" rules, and keep the
static header dependencies consistent with the computed
ones.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-09 07:57:29 -07:00
Jeff King eea8c32b92 Makefile: do not have git.o depend on common-cmds.h
This dependency has been stale since 70827b1 (Split up
builtin commands into separate files from git.c, 2006-04-21).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-09 07:57:29 -07:00
Jonathan Nieder 60d24dd255 Makefile: fold XDIFF_H and VCSSVN_H into LIB_H
Just like MISC_H (see previous commit), there is no reason to track
xdiff and vcs-svn headers separately from the rest of the headers.
The only purpose of these variables is to keep track of recompilation
dependencies.

As a pleasant side effect, folding these into LIB_H lets us stop
tracking GIT_OBJS and VCSSVN_TEST_OBJS separately from the list of all
OBJECTS.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-09 07:56:28 -07:00
Torsten Bögershausen 76759c7dff git on Mac OS and precomposed unicode
Mac OS X mangles file names containing unicode on file systems HFS+,
VFAT or SAMBA.  When a file using unicode code points outside ASCII
is created on a HFS+ drive, the file name is converted into
decomposed unicode and written to disk. No conversion is done if
the file name is already decomposed unicode.

Calling open("\xc3\x84", ...) with a precomposed "Ä" yields the same
result as open("\x41\xcc\x88",...) with a decomposed "Ä".

As a consequence, readdir() returns the file names in decomposed
unicode, even if the user expects precomposed unicode.  Unlike on
HFS+, Mac OS X stores files on a VFAT drive (e.g. an USB drive) in
precomposed unicode, but readdir() still returns file names in
decomposed unicode.  When a git repository is stored on a network
share using SAMBA, file names are send over the wire and written to
disk on the remote system in precomposed unicode, but Mac OS X
readdir() returns decomposed unicode to be compatible with its
behaviour on HFS+ and VFAT.

The unicode decomposition causes many problems:

- The names "git add" and other commands get from the end user may
  often be precomposed form (the decomposed form is not easily input
  from the keyboard), but when the commands read from the filesystem
  to see what it is going to update the index with already is on the
  filesystem, readdir() will give decomposed form, which is different.

- Similarly "git log", "git mv" and all other commands that need to
  compare pathnames found on the command line (often but not always
  precomposed form; a command line input resulting from globbing may
  be in decomposed) with pathnames found in the tree objects (should
  be precomposed form to be compatible with other systems and for
  consistency in general).

- The same for names stored in the index, which should be
  precomposed, that may need to be compared with the names read from
  readdir().

NFS mounted from Linux is fully transparent and does not suffer from
the above.

As Mac OS X treats precomposed and decomposed file names as equal,
we can

 - wrap readdir() on Mac OS X to return the precomposed form, and

 - normalize decomposed form given from the command line also to the
   precomposed form,

to ensure that all pathnames used in Git are always in the
precomposed form.  This behaviour can be requested by setting
"core.precomposedunicode" configuration variable to true.

The code in compat/precomposed_utf8.c implements basically 4 new
functions: precomposed_utf8_opendir(), precomposed_utf8_readdir(),
precomposed_utf8_closedir() and precompose_argv().  The first three
are to wrap opendir(3), readdir(3), and closedir(3) functions.

The argv[] conversion allows to use the TAB filename completion done
by the shell on command line.  It tolerates other tools which use
readdir() to feed decomposed file names into git.

When creating a new git repository with "git init" or "git clone",
"core.precomposedunicode" will be set "false".

The user needs to activate this feature manually.  She typically
sets core.precomposedunicode to "true" on HFS and VFAT, or file
systems mounted via SAMBA.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-08 22:03:46 -07:00
Junio C Hamano c0f86547c5 index-pack: Disable threading on cygwin
The Cygwin implementation of pread() is not thread-safe since, just
like the emulation provided by compat/pread.c, it uses a sequence of
seek-read-seek calls. In order to avoid failues due to thread-safety
issues, commit b038a61 disables threading when NO_PREAD is defined.
(ie when using the emulation code in compat/pread.c).

We introduce a new build variable, NO_THREAD_SAFE_PREAD, which allows
use to disable the threaded index-pack code on cygwin, in addition to
the above NO_PREAD case.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-26 14:23:03 -07:00
Javier Roucher Iglesias e30b2feb1b add 'git credential' plumbing command
The credential API is in C, and not available to scripting languages.
Expose the functionalities of the API by wrapping them into a new
plumbing command "git credentials".

In other words, replace the internal "test-credential" by an official Git
command.

Most documentation writen by: Jeff King <peff@peff.net>
Signed-off-by: Pavel Volek <Pavel.Volek@ensimag.imag.fr>
Signed-off-by: Kim Thuat Nguyen <Kim-Thuat.Nguyen@ensimag.imag.fr>
Signed-off-by: Javier Roucher Iglesias <Javier.Roucher-Iglesias@ensimag.imag.fr>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-25 11:55:51 -07:00
Junio C Hamano 10fcd5194f Merge branch 'jk/no-more-asciidoc7'
We no longer use AsciiDoc7 syntax in our documentation and favor a
more modern style.

* jk/no-more-asciidoc7:
  docs: drop antique comment from Makefile
  docs: drop asciidoc7compatible flag
2012-06-25 11:24:10 -07:00
Junio C Hamano a88d7aaee8 Merge branch 'vr/help-per-platform'
We used to always default to "man" format even on platforms where
"man" viewer is not widely available.

* vr/help-per-platform:
  help: use HTML as the default help format on Windows
2012-06-21 14:42:38 -07:00
Jeff King b8ba629264 Makefile: fold MISC_H into LIB_H
We keep a list of most of the header files in LIB_H, but
some are split out into MISC_H. The original point
of LIB_H was that it would force recompilation of C files
when any of the library headers changed. It was
over-encompassing, since not all C files included all of the
library headers; this made it simple to maintain, but meant
that we sometimes recompiled when it was not necessary.

Over time, some new headers were omitted from LIB_H, and
rules were added to the Makefile for a few specific targets
to explicitly depend on them. This avoided some unnecessary
recompilation at the cost of having to maintain the
dependency list of those targets manually (e.g., d349a03).

Later, we needed a complete list of headers from which we
should extract strings to localized. Thus 1b8b2e4 introduced
MISC_H to mention all header files not included in LIB_H,
and the concatenation of the two lists is fed to xgettext.
Headers mentioned as dependencies must also be manually
added to MISC_H to receive the benefits of localization.

Having to update multiple locations manually is a pain and
has led to errors. For example, see "git log -Swt-status.h
Makefile" for some back-and-forth between the two locations.
Or the fact that column.h was never added to MISC_H, and
therefore was not localized (which is fixed by this patch).
Moreover, the benefits of keeping these few headers out of
LIB_H is not that great, for two reasons:

  1. The better way to do this is by auto-computing the
     dependencies, which is more accurate and less work to
     maintain. If your compiler supports it, we turn on
     computed header dependencies by default these days. So
     these manual dependencies are used only for people who
     do not have gcc at all (which increases the chance of
     them becoming stale, as many developers will never even
     use them).

  2. Even if you do not have gcc, the manual header
     dependencies do not help all that much.  They obviously
     cannot help with an initial compilation (since their
     purpose is to avoid unnecessary recompilation when a
     header changes), which means they are only useful when
     building a new version of git in the working tree that
     held an existing build (e.g., after checkout or during a
     bisection). But since a change of a header in LIB_H
     will force recompilation, and given that the vast
     majority of headers are in LIB_H, most version changes
     will result in a full rebuild anyway.

Let's just fold MISC_H into LIB_H and get rid of these
manual rules. The worst case is some extra compilation, but
even that is unlikely to matter due to the reasons above.

The one exception is that we should keep common-cmds.h
separate. Because it is generated, the computed dependencies
do not handle it properly, and we must keep separate
individual dependencies on it. Let's therefore rename MISC_H
to GENERATED_H to make it more clear what should go in it.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-20 12:57:42 -07:00
Jeff King fc890030c1 Makefile: sort LIB_H list
This was mostly sorted already, but put things like
"cache-tree.h" after "cache.h", even though "-" comes before
"." (at least in the C locale). This will make it easier to
keep the list sorted later by piping it through "sort".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-20 12:57:41 -07:00
Vincent van Ravesteijn 1cc8af044c help: use HTML as the default help format on Windows
When 'git help $cmd' is run without a format option (e.g. -w), the
'man' format is always used. On some platforms, however, manual page
viewers are not often available.

Introduce DEFAULT_HELP_FORMAT make variable in order to allow the
default format configurable at compile time, and set it to HTML when
compiling on Windows (but not Cygwin).

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Vincent van Ravesteijn <vfr@lyx.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-06 14:14:13 -07:00
Jeff King 745c7c8e62 http: get default user-agent from git_user_agent
This means we will respect the GIT_USER_AGENT build-time
configuration and run-time environment variable.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-03 13:11:54 -07:00
Jeff King 42dcbb738b version: add git_user_agent function
This is basically a fancy way of saying "git/$GIT_VERSION",
except that it is overridable at build-time and through the
environment. Which means that people who don't want to
advertise their git version (for privacy or security
reasons) can tweak it.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-03 13:11:52 -07:00
Jeff King 816fb46be6 move git_version_string into version.c
The global git_version_string currently lives in git.c, but
doesn't have anything to do with the git wrapper. Let's move
it into its own file, where it will be more appropriate to
build more version-related functions.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-03 13:11:34 -07:00
Junio C Hamano 2c4888efbc Sync with maint 2012-06-01 13:26:16 -07:00
Junio C Hamano 0626fae6af Merge branch 'ef/http-o-depends-on-gvf' into maint
A minor compilation fix.

By Erik Faye-Lund
* ef/http-o-depends-on-gvf:
  Makefile: add missing GIT-VERSION-FILE dependency
2012-06-01 13:22:44 -07:00
Erik Faye-Lund 38475f972c Makefile: add missing GIT-VERSION-FILE dependency
In 20fc9bc (Set HTTP user agent to git/GIT_VERSION, 2006-04-04),
http.o started recording GIT_VERSION, but http.o wasn't added
to the list of files that depends on GIT-VERSION-FILE.

Fix this, so mofications to GIT-VERSION-FILE will result in an
updated user-agent string.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-31 12:42:53 -07:00
Jeff King bf17126211 docs: drop asciidoc7compatible flag
When we made the switch to supporting asciidoc 8 in 4c7100a
(Documentation: adjust to AsciiDoc 8, 2007-06-14), we were
able to leave most of the documentation intact by defining
asciidoc7compatible.

Since commit 6cf378f (docs: stop using asciidoc no-inline-literal,
2012-04-26), we don't support versions of asciidoc older
than 8.4.1, which is when inline literals were introduced.
Therefore there is not much point in keeping our
documentation compatible with asciidoc 7.

So we are now free to drop the asciidoc7compatible flag and
update the documentation itself to assume asciidoc8.
Fortunately, doing the latter is very easy; we weren't using
any of the constructs impacted by asciidoc7compatible, so
there are no changes to make.

The reason is somewhat subtle. The asciidoc7compatible
affects only super/sub-scripts ("^" and "~") and index
terms. We don't use the latter at all. Nor we do we use the
former, but we did have to protect them from accidental
expansion in constructs like "rev^1". However, all of our
uses of "~" and "^" are either in code blocks (which are
rendered literally), or inside backticks. Prior to 6cf378f,
backticks were not inline literals, and needed proper
quoting. But post-6cf378f, we don't have to worry whether we
are using the old or new rules, as those characters are not
interpreted at all in either case.

I verified that the result of "make install-html
install-man" is identical before and after this patch on
asciidoc 8.6.7.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-30 09:22:43 -07:00
Junio C Hamano cc13431a49 Merge branch 'nd/threaded-index-pack'
Enables threading in index-pack to resolve base data in parallel.

By Nguyễn Thái Ngọc Duy (3) and Ramsay Jones (1)
* nd/threaded-index-pack:
  index-pack: disable threading if NO_PREAD is defined
  index-pack: support multithreaded delta resolving
  index-pack: restructure pack processing into three main functions
  compat/win32/pthread.h: Add an pthread_key_delete() implementation
2012-05-14 11:50:40 -07:00
Junio C Hamano 499e7b3150 Merge branch 'jc/install-no-hardlinks'
Your build platform may support hardlinks but you may prefer not to use
them, e.g. when installing to DESTDIR to make a tarball and untarring on
a filesystem that has poor support for hardlinks.

The Makefile in git-gui project may need to learn to honor the same
setting; it unconditionally creates git-citool by hardlinking git-gui.

* jc/install-no-hardlinks:
  Makefile: NO_INSTALL_HARDLINKS
2012-05-10 10:49:18 -07:00
Nguyễn Thái Ngọc Duy b8a2486f15 index-pack: support multithreaded delta resolving
This puts delta resolving on each base on a separate thread, one base
cache per thread. Per-thread data is grouped in struct thread_local.
When running with nr_threads == 1, no pthreads calls are made. The
system essentially runs in non-thread mode.

An experiment on a Xeon 24 core machine with git.git shows that
performance does not increase proportional to the number of cores. So
by default, we use maximum 3 cores. Some numbers with --threads from 1
to 16:

1..4
real    0m8.003s  0m5.307s  0m4.321s  0m3.830s
user    0m7.720s  0m8.009s  0m8.133s  0m8.305s
sys     0m0.224s  0m0.372s  0m0.360s  0m0.360s

5..8
real    0m3.727s  0m3.604s  0m3.332s  0m3.369s
user    0m9.361s  0m9.817s  0m9.525s  0m9.769s
sys     0m0.584s  0m0.624s  0m0.540s  0m0.560s

9..12
real    0m3.036s  0m3.139s  0m3.177s  0m2.961s
user    0m8.977s  0m10.205s 0m9.737s  0m10.073s
sys     0m0.596s  0m0.680s  0m0.684s  0m0.680s

13..16
real    0m2.985s  0m2.894s  0m2.975s  0m2.971s
user    0m9.825s  0m10.573s 0m10.833s 0m11.361s
sys     0m0.788s  0m0.732s  0m0.904s  0m1.016s

On an Intel dual core and linux-2.6.git

1..4
real    2m37.789s 2m7.963s  2m0.920s  1m58.213s
user    2m28.415s 2m52.325s 2m50.176s 2m41.187s
sys     0m7.808s  0m11.181s 0m11.224s 0m10.731s

Thanks Ramsay Jones for troubleshooting and support on MinGW platform.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-07 15:48:15 -07:00
Junio C Hamano 70de5e65e8 Makefile: NO_INSTALL_HARDLINKS
Your filesystem may support hardlinks, but you may choose not to use them
when installing git-foo builtins and favor symblic links or copies for
whatever reason.

The installation procedure of git-gui/ directory is not touched with this
patch and git-citool still ends up being a hardlink to git-gui, but it
needs to be addressed separately.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-04 10:24:13 -07:00
Nguyễn Thái Ngọc Duy 8275905e7e Makefile: keep many variable list sorted
We tend to keep long lists sorted (extensions are not taken into
account), which helps spot a name easily by eye. Rearrange a few
items so these lists remain sorted.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-04 09:31:28 -07:00
Junio C Hamano f4ed0af6e2 Merge branch 'nd/columns'
A couple of commands learn --column option to produce columnar output.

By Nguyễn Thái Ngọc Duy (9) and Zbigniew Jędrzejewski-Szmek (1)
* nd/columns:
  tag: add --column
  column: support piping stdout to external git-column process
  status: add --column
  branch: add --column
  help: reuse print_columns() for help -a
  column: add dense layout support
  t9002: work around shells that are unable to set COLUMNS to 1
  column: add columnar layout
  Stop starting pager recursively
  Add column layout skeleton and git-column
2012-05-03 15:13:31 -07:00
Junio C Hamano 4d1f0ef210 Merge branch 'tr/xdiff-fast-hash'
Use word-at-a-time comparison to find end of line or NUL (end of buffer),
borrowed from the linux-kernel discussion.

By Thomas Rast
* tr/xdiff-fast-hash:
  xdiff: choose XDL_FAST_HASH code on sizeof(long) instead of __WORDSIZE
  xdiff: load full words in the inner loop of xdl_hash_record
2012-05-02 13:54:58 -07:00
Junio C Hamano 1be65eda6a Merge branch 'nd/i18n'
More message strings marked for i18n.

By Nguyễn Thái Ngọc Duy (10) and Jonathan Nieder (1)
* nd/i18n:
  help: replace underlining "help -a" headers using hyphens with a blank line
  i18n: bundle: mark strings for translation
  i18n: index-pack: mark strings for translation
  i18n: apply: update say_patch_name to give translators complete sentence
  i18n: apply: mark strings for translation
  i18n: remote: mark strings for translation
  i18n: make warn_dangling_symref() automatically append \n
  i18n: help: mark strings for translation
  i18n: mark relative dates for translation
  strbuf: convenience format functions with \n automatically appended
  Makefile: feed all header files to xgettext
2012-05-02 13:51:35 -07:00
Junio C Hamano d4a5d872c0 Merge branch 'jc/index-v4'
Trivially shrinks the on-disk size of the index file to save both I/O and
checksum overhead.

The topic should give a solid base to build on further updates, with the
code refactoring in its earlier parts, and the backward compatibility
mechanism in its later parts.

* jc/index-v4:
  index-v4: document the entry format
  unpack-trees: preserve the index file version of original
  update-index: upgrade/downgrade on-disk index version
  read-cache.c: write prefix-compressed names in the index
  read-cache.c: read prefix-compressed names in index on-disk version v4
  read-cache.c: move code to copy incore to ondisk cache to a helper function
  read-cache.c: move code to copy ondisk to incore cache to a helper function
  read-cache.c: report the header version we do not understand
  read-cache.c: make create_from_disk() report number of bytes it consumed
  read-cache.c: allow unaligned mapping of the index file
  cache.h: hide on-disk index details
  varint: make it available outside the context of pack
2012-05-02 13:51:13 -07:00
Nguyễn Thái Ngọc Duy d96e3c150f tag: add --column
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-27 09:26:39 -07:00
Nguyễn Thái Ngọc Duy 323d053091 status: add --column
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-27 09:26:38 -07:00
Nguyễn Thái Ngọc Duy ebe31ef2ed branch: add --column
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-27 09:26:38 -07:00
Nguyễn Thái Ngọc Duy 7e29b8254f Add column layout skeleton and git-column
A column option string consists of many token separated by either
a space or a  comma. A token belongs to one of three groups:

 - enabling: always, never and auto
 - layout mode: currently plain (which does not layout at all)
 - other future tuning flags

git-column can be used to pipe output to from a command that wants
column layout, but not to mess with its own output code. Simpler output
code can be changed to use column layout code directly.

Thanks-to: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-27 09:26:37 -07:00
Nguyễn Thái Ngọc Duy 9665627d8c i18n: help: mark strings for translation
This patch also marks most common commands' synopsis for translation
so that "git help" gives a friendly listing.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-24 14:55:48 -07:00
Junio C Hamano 419f2ecf78 Merge branch 'hv/submodule-recurse-push'
"git push --recurse-submodules" learns to optionally look into the
histories of submodules bound to the superproject and push them out.

By Heiko Voigt
* hv/submodule-recurse-push:
  push: teach --recurse-submodules the on-demand option
  Refactor submodule push check to use string list instead of integer
  Teach revision walking machinery to walk multiple times sequencially
2012-04-24 14:40:20 -07:00
Junio C Hamano ba8e6326f1 Merge branch 'rs/commit-list-sort-in-batch'
Setting up a revision traversal with many starting points was inefficient
as these were placed in a date-order priority queue one-by-one.

By René Scharfe (3) and Junio C Hamano (1)
* rs/commit-list-sort-in-batch:
  mergesort: rename it to llist_mergesort()
  revision: insert unsorted, then sort in prepare_revision_walk()
  commit: use mergesort() in commit_list_sort_by_date()
  add mergesort() for linked lists
2012-04-23 12:52:55 -07:00
Junio C Hamano 2347982d1a Merge branch 'jn/debian-customizes-default-editor'
Make it easier for distros to document custom pager and editor they
used when building their binary releases in "git var" documentation.

By Jonathan Nieder
* jn/debian-customizes-default-editor:
  var doc: advertise current DEFAULT_PAGER and DEFAULT_EDITOR settings
  var doc: default editor and pager are configurable at build time
2012-04-23 12:41:15 -07:00
Junio C Hamano 4c9d7bc4a6 Merge branch 'pw/git-p4'
By Pete Wyckoff
* pw/git-p4:
  git p4: use "git p4" directly in tests
  git p4: update name in script
  git-p4: move to toplevel
2012-04-23 12:40:03 -07:00
Nguyễn Thái Ngọc Duy 1b8b2e4dc8 Makefile: feed all header files to xgettext
Translation markers may be present in header files too. Make sure we
don't miss any.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-23 10:39:20 -07:00
René Scharfe 0db71e0fa9 add mergesort() for linked lists
This adds a generic bottom-up mergesort implementation for singly linked
lists.  It was inspired by Simon Tatham's webpage on the topic[1], but
not so much by his implementation -- for no good reason, really, just a
case of NIH.

[1] http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-11 08:50:53 -07:00
Jonathan Nieder 5b58619aa0 var doc: advertise current DEFAULT_PAGER and DEFAULT_EDITOR settings
Document the default pager and editor chosen at compile time in the
git-var(1) manpage so users curious about what command _this_ copy of
git will fall back to when EDITOR, VISUAL, and PAGER are unset can
find the answer quickly.

In builds leaving those settings uncustomized, this patch makes the
manpage continue to say "usually vi" and "usually less" so the
formatted documentation is usable for a wide audience including users
of custom builds that change those settings.  If you would like your
copy of the docs to be less noncommittal, you will need to set
DEFAULT_PAGER=less and DEFAULT_EDITOR=vi explicitly.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-10 14:50:27 -07:00
Thomas Rast 6942efcfa9 xdiff: load full words in the inner loop of xdl_hash_record
Redo the hashing loop in xdl_hash_record in a way that loads an entire
'long' at a time, using masking tricks to see when and where we found
the terminating '\n'.

I stole inspiration and code from the posts by Linus Torvalds around

  https://lkml.org/lkml/2012/3/2/452
  https://lkml.org/lkml/2012/3/5/6

His method reads the buffers in sizeof(long) increments, and may thus
overrun it by at most sizeof(long)-1 bytes before it sees the final
newline (or hits the buffer length check).  I considered padding out
all buffers by a suitable amount to "catch" the overrun, but

* this does not work for mmap()'d buffers: if you map 4096+8 bytes
  from a 4096 byte file, accessing the last 8 bytes results in a
  SIGBUS on my machine; and

* it would also be extremely ugly because it intrudes deep into the
  unpacking machinery.

So I adapted it to not read beyond the buffer at all.  Instead, it
reads the final partial word byte-by-byte and strings it together.
Then it can use the same logic as before to finish the hashing.

So far we enable this only on x86_64, where it provides nice speedup
for diff-related work:

  Test                                  origin/next      tr/xdiff-fast-hash
  -----------------------------------------------------------------------------
  4000.1: log -3000 (baseline)          0.07(0.05+0.02)  0.08(0.06+0.02) +14.3%
  4000.2: log --raw -3000 (tree-only)   0.37(0.33+0.04)  0.37(0.32+0.04) +0.0%
  4000.3: log -p -3000 (Myers)          1.75(1.65+0.09)  1.60(1.49+0.10) -8.6%
  4000.4: log -p -3000 --histogram      1.73(1.62+0.09)  1.58(1.49+0.08) -8.7%
  4000.5: log -p -3000 --patience       2.11(2.00+0.10)  1.94(1.80+0.11) -8.1%

Perhaps other platforms could also benefit.  However it does NOT work
on big-endian systems!

[jc: minimum style and compilation fixes]

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-09 17:03:25 -07:00
Pete Wyckoff b6f9305764 git-p4: move to toplevel
Move git-p4 out of contrib/fast-import into the main code base,
aside other foreign SCM tools.

Signed-off-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-09 14:59:40 -07:00
Ben Walton b3e34dddc0 Use SHELL_PATH from build system in run_command.c:prepare_shell_cmd
During the testing of the 1.7.10 rc series on Solaris for OpenCSW, it
was discovered that t7006-pager was failing due to finding a bad "sh"
in PATH after a call to execvp("sh", ...).  This call was setup by
run_command.c:prepare_shell_cmd.

The PATH in use at the time saw /opt/csw/bin given precedence to
traditional Solaris paths such as /usr/bin and /usr/xpg4/bin.  A
package named schilyutils (Joerg Schilling's utilities) was installed
on the build system and it delivered a modified version of the
traditional Solaris /usr/bin/sh as /opt/csw/bin/sh.  This version of
sh suffers from many of the same problems as /usr/bin/sh.

The command-specific pager test failed due to the broken "sh" handling
^ as a pipe character.  It tried to fork two processes when it
encountered "sed s/^/foo:/" as the pager command.  This problem was
entirely dependent on the PATH of the user at runtime.

Possible fixes for this issue are:

1. Use the standard system() or popen() which both launch a POSIX
   shell on Solaris as long as _POSIX_SOURCE is defined.

2. The git wrapper could prepend SANE_TOOL_PATH to PATH thus forcing
   all unqualified commands run to use the known good tools on the
   system.

3. The run_command.c:prepare_shell_command() could use the same
   SHELL_PATH that is in the #! line of all all scripts and not rely
   on PATH to find the sh to run.

Option 1 would preclude opening a bidirectional pipe to a filter
script and would also break git for Windows as cmd.exe is spawned from
system() (cf. v1.7.5-rc0~144^2, "alias: use run_command api to execute
aliases, 2011-01-07).

Option 2 is not friendly to users as it would negate their ability to
use tools of their choice in many cases.  Alternately, injecting
SANE_TOOL_PATH such that it takes precedence over /bin and /usr/bin
(and anything with lower precedence than those paths) as
git-sh-setup.sh does would not solve the problem either as the user
environment could still allow a bad sh to be found.  (Many OpenCSW
users will have /opt/csw/bin leading their PATH and some subset would
have schilyutils installed.)

Option 3 allows us to use a known good shell while still honouring the
users' PATH for the utilities being run.  Thus, it solves the problem
while not negatively impacting either users or git's ability to run
external commands in convenient ways.  Essentially, the shell is a
special case of tool that should not rely on SANE_TOOL_PATH and must
be called explicitly.

With this patch applied, any code path leading to
run_command.c:prepare_shell_cmd can count on using the same sane shell
that all shell scripts in the git suite use.  Both the build system
and run_command.c will default this shell to /bin/sh unless
overridden.

Signed-off-by: Ben Walton <bwalton@artsci.utoronto.ca>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-03 17:24:20 -07:00
Junio C Hamano d2c1898571 varint: make it available outside the context of pack
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-03 16:24:44 -07:00
Heiko Voigt bcc0a3ea38 Teach revision walking machinery to walk multiple times sequencially
Previously it was not possible to iterate revisions twice using the
revision walking api. We add a reset_revision_walk() which clears the
used flags. This allows us to do multiple sequencial revision walks.

We add the appropriate calls to the existing submodule machinery doing
revision walks. This is done to avoid surprises if future code wants to
call these functions more than once during the processes lifetime.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-30 08:57:49 -07:00
Jiang Xin 508d1244dc Merge branch 'master' into git-po 2012-02-28 12:23:26 +08:00
Junio C Hamano 8080906245 Merge branch 'maint'
* maint:
  Document accumulated fixes since 1.7.9.2
  Git 1.7.8.5
  grep -P: Fix matching ^ and $
  am: don't infloop for an empty input file
  rebase -m: only call "notes copy" when rewritten exists and is non-empty
  git-p4: remove bash-ism in t9800
  git-p4: remove bash-ism in t9809
  git-p4: fix submit regression with clientSpec and subdir clone
  git-p4: set useClientSpec variable on initial clone
  Makefile: add thread-utils.h to LIB_H

Conflicts:
	RelNotes
	t/t9809-git-p4-client-view.sh
2012-02-26 17:39:04 -08:00
Junio C Hamano 4d06691eec Sync with 1.7.8.5 2012-02-26 16:42:35 -08:00
Dmitry V. Levin 39cb6445d9 Makefile: add thread-utils.h to LIB_H
Starting with commit v1.7.8-165-g0579f91, grep.h includes
thread-utils.h, so the latter has to be added to LIB_H.

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Acked-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-26 14:31:26 -08:00
Junio C Hamano ef55bd78e7 Merge branch 'dp/i18n-libcharset' into maint
* dp/i18n-libcharset:
  Makefile: introduce CHARSET_LIB to link with -lcharset
2012-02-21 14:57:14 -08:00
Junio C Hamano 655c3ed58b Merge branch 'tt/profile-build-fix' into maint
* tt/profile-build-fix:
  Makefile: fix syntax for older make
  Fix build problems related to profile-directed optimization
2012-02-21 14:56:06 -08:00
Thomas Rast 342e9ef2d9 Introduce a performance testing framework
This introduces a performance testing framework under t/perf/.  It
tries to be as close to the test-lib.sh infrastructure as possible,
and thus should be easy to get used to for git developers.

The following points were considered for the implementation:

1. You usually want to compare arbitrary revisions/build trees against
   each other.  They may not have the performance test under
   consideration, or even the perf-lib.sh infrastructure.

   To cope with this, the 'run' script lets you specify arbitrary
   build dirs and revisions.  It even automatically builds the revisions
   if it doesn't have them at hand yet.

2. Usually you would not want to run all tests.  It would take too
   long anyway.  The 'run' script lets you specify which tests to run;
   or you can also do it manually.  There is a Makefile for
   discoverability and 'make clean', but it is not meant for
   real-world use.

3. Creating test repos from scratch in every test is extremely
   time-consuming, and shipping or downloading such large/weird repos
   is out of the question.

   We leave this decision to the user.  Two different sizes of test
   repos can be configured, and the scripts just copy one or more of
   those (using hardlinks for the object store).  By default it tries
   to use the build tree's git.git repository.

   This is fairly fast and versatile.  Using a copy instead of a clone
   preserves many properties that the user may want to test for, such
   as lots of loose objects, unpacked refs, etc.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-17 08:21:22 -08:00
Jiang Xin dce37b66fb l10n: initial git.pot for 1.7.10 upcoming release
The file 'po/git.pot' is generated using the command 'make pot'
against git v1.7.9-209-gb6b3b (Update draft release notes to 1.7.10).

Since po/git.pot is tracked, remove the entry from .gitignore, and
not delete the file again when doing 'make distclean'.

Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
2012-02-15 11:17:10 +08:00
Junio C Hamano 15c540fde9 Merge branch 'dp/i18n-libcharset'
* dp/i18n-libcharset:
  Makefile: introduce CHARSET_LIB to link with -lcharset
2012-02-14 12:57:18 -08:00
Junio C Hamano 1dcfa8de7c Merge branch 'mp/make-cleanse-x-for-exe' into maint
* mp/make-cleanse-x-for-exe:
  Explicitly set X to avoid potential build breakage
2012-02-13 23:26:25 -08:00
Junio C Hamano 6f5e880c68 Sync with maint
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-13 11:48:00 -08:00
Ævar Arnfjörð Bjarmason 6d62c983f7 Makefile: Change the default compiler from "gcc" to "cc"
Ever since the very first commit to git.git we've been setting CC to
"gcc". Presumably this is behavior that Linus copied from the Linux
Makefile.

However unlike Linux Git is written in ANSI C and supports a multitude
of compilers, including Clang, Sun Studio, xlc etc. On my Linux box
"cc" is a symlink to clang, and on a Solaris box I have access to "cc"
is Sun Studio's CC.

Both of these are perfectly capable of compiling Git, and it's
annoying to have to specify CC=cc on the command-line when compiling
Git when that's the default behavior of most other portable programs.

So change the default to "cc". Users who want to compile with GCC can
still add "CC=gcc" to the make(1) command-line, but those users who
don't have GCC as their "cc" will see expected behavior, and as a
bonus we'll be more likely to smoke out new compilation warnings from
our distributors since they'll me using a more varied set of compilers
by default.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-13 02:28:54 -08:00
Дилян Палаузов b5225286b2 Makefile: introduce CHARSET_LIB to link with -lcharset
On some systems, the function locale_charset() may not be exported from
libiconv but is available from libcharset, and we need -lcharset when
linking.

Introduce a make variable CHARSET_LIB that can be set to -lcharsetlib
on such systems.  Also autodetect this in the configure script by first
looking for the symbol in libiconv, and then libcharset.

Signed-off-by: Дилян Палаузов <dilyan.palauzov@aegee.org>
2012-02-13 00:11:01 -08:00
Junio C Hamano 6ff63d9f87 Merge branch 'tt/profile-build-fix'
* tt/profile-build-fix:
  Makefile: fix syntax for older make
  Fix build problems related to profile-directed optimization
2012-02-12 22:42:46 -08:00
Junio C Hamano 297638a98e Merge branch 'mp/make-cleanse-x-for-exe'
* mp/make-cleanse-x-for-exe:
  Explicitly set X to avoid potential build breakage
2012-02-12 22:42:17 -08:00
Michael Palimaka ace5e97ecd Explicitly set X to avoid potential build breakage
$X is appended to binary names for Windows builds (ie. git.exe).
Pollution from the environment can inadvertently trigger this behaviour,
resulting in 'git' turning into 'gitwhatever' without warning.

Signed-off-by: Michael Palimaka <kensington@astralcloak.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-09 14:31:48 -08:00
Johannes Sixt e60ec75948 Makefile: fix syntax for older make
It is necessary to write the else branch as a nested conditional. Also,
write the conditions with parentheses because we use them throughout the
Makefile.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-09 11:47:54 -08:00
Junio C Hamano 12b681c3d2 Merge branch 'jn/svn-fe'
* jn/svn-fe: (36 commits)
  vcs-svn: suppress a -Wtype-limits warning
  vcs-svn: allow import of > 4GiB files
  vcs-svn: rename check_overflow arguments for clarity
  vcs-svn/svndiff.c: squelch false "unused" warning from gcc
  vcs-svn: reset first_commit_done in fast_export_init
  vcs-svn: do not initialize report_buffer twice
  vcs-svn: avoid hangs from corrupt deltas
  vcs-svn: guard against overflow when computing preimage length
  vcs-svn: cap number of bytes read from sliding view
  test-svn-fe: split off "test-svn-fe -d" into a separate function
  vcs-svn: implement text-delta handling
  vcs-svn: let deltas use data from preimage
  vcs-svn: let deltas use data from postimage
  vcs-svn: verify that deltas consume all inline data
  vcs-svn: implement copyfrom_data delta instruction
  vcs-svn: read instructions from deltas
  vcs-svn: read inline data from deltas
  vcs-svn: read the preimage when applying deltas
  vcs-svn: parse svndiff0 window header
  vcs-svn: skeleton of an svn delta parser
  ...
2012-02-07 12:56:38 -08:00
Theodore Ts'o f2d713fc3e Fix build problems related to profile-directed optimization
There was a number of problems I ran into when trying the
profile-directed optimizations added by Andi Kleen in git commit
7ddc2710b9.  (This was using gcc 4.4 found on many enterprise
distros.)

1) The -fprofile-generate and -fprofile-use commands are incompatible
with ccache; the code ends up looking in the wrong place for the gcda
files based on the ccache object names.

2) If the makefile notices that CFLAGS are different, it will rebuild
all of the binaries.  Hence the recipe originally specified by the
INSTALL file ("make profile-all" followed by "make install") doesn't
work.  It will appear to work, but the binaries will end up getting
built with no optimization.

This patch fixes this by using an explicit set of options passed via
the PROFILE variable then using this to directly manipulate CFLAGS and
EXTLIBS.

The developer can run "make PROFILE=BUILD all ; sudo make
PROFILE=BUILD install" automatically run a two-pass build with the
test suite run in between as the sample workload for the purpose of
recording profiling information to do the profile-directed
optimization.

Alternatively, the profiling version of binaries can be built using:

	make PROFILE=GEN PROFILE_DIR=/var/cache/profile all
	make PROFILE=GEN install

and then after git has been used for a while, the optimized version of
the binary can be built as follows:

	make PROFILE=USE PROFILE_DIR=/var/cache/profile all
	make PROFILE=USE install

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 00:15:12 -08:00
Junio C Hamano 2a2aa8e556 Merge branch 'ar/i18n-no-gettext'
* ar/i18n-no-gettext:
  i18n: Do not force USE_GETTEXT_SCHEME=fallthrough on NO_GETTEXT
  i18n: Make NO_GETTEXT imply fallthrough scheme in shell l10n
  add a Makefile switch to avoid gettext translation in shell scripts
  git-sh-i18n: restructure the logic to compute gettext.sh scheme
2012-01-31 22:24:23 -08:00
Junio C Hamano d475536658 Merge branch 'svn-fe' of git://repo.or.cz/git/jrn into jn/svn-fe
This simplifies svn-fe a great deal and fulfills a longstanding wish:
support for dumps with deltas in them, and incremental imports.

The cost is that commandline usage of the svn-fe tool becomes a little
more complicated since it no longer keeps state itself but instead reads
blobs back from fast-import in order to copy them between revisions and
apply deltas to them.

Also removes a couple of custom data structures and replaces them with
strbufs like other parts of Git.

* 'svn-fe' of git://repo.or.cz/git/jrn: (32 commits)
  vcs-svn: reset first_commit_done in fast_export_init
  vcs-svn: do not initialize report_buffer twice
  vcs-svn: avoid hangs from corrupt deltas
  vcs-svn: guard against overflow when computing preimage length
  vcs-svn: cap number of bytes read from sliding view
  test-svn-fe: split off "test-svn-fe -d" into a separate function
  vcs-svn: implement text-delta handling
  vcs-svn: let deltas use data from preimage
  vcs-svn: let deltas use data from postimage
  vcs-svn: verify that deltas consume all inline data
  vcs-svn: implement copyfrom_data delta instruction
  vcs-svn: read instructions from deltas
  vcs-svn: read inline data from deltas
  vcs-svn: read the preimage when applying deltas
  vcs-svn: parse svndiff0 window header
  vcs-svn: skeleton of an svn delta parser
  vcs-svn: make buffer_read_binary API more convenient
  vcs-svn: learn to maintain a sliding view of a file
  Makefile: list one vcs-svn/xdiff object or header per line
  vcs-svn: avoid using ls command twice
  ...

Conflicts:
	Makefile
	contrib/svn-fe/svn-fe.txt
2012-01-27 11:20:00 -08:00
Junio C Hamano 60f40791f9 i18n: Do not force USE_GETTEXT_SCHEME=fallthrough on NO_GETTEXT
It should merely be the default used when the builder does not say
anything about USE_GETTEXT_SCHEME.

Even with NO_GETTEXT, USE_GETTEXT_SCHEME=gnu may be a way to avoid
possibly slower emulation in our shell scripts.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-27 10:26:37 -08:00
Junio C Hamano ba8c6ef627 i18n: Make NO_GETTEXT imply fallthrough scheme in shell l10n
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-23 14:25:19 -08:00
Alex Riesen ad17ea7347 add a Makefile switch to avoid gettext translation in shell scripts
Some systems have gettext.sh (GNU gettext) installed, but it is either
broken or misconfigured in such a way so its output is not usable.  In
case the users of these systems are unable or not interested in fixing
them, setting the new Makefile switch should help:

    make USE_GETTEXT_SCHEME=fallthrough

This will replace the translation routines with fallthrough versions,
that does not use gettext from the platform.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-01-23 14:24:14 -08:00
Junio C Hamano e39888ba21 Merge branch 'na/strtoimax' into maint
* na/strtoimax:
  Support sizes >=2G in various config options accepting 'g' sizes.
  Compatibility: declare strtoimax() under NO_STRTOUMAX
  Add strtoimax() compatibility function.
2011-12-28 11:32:33 -08:00
Junio C Hamano ded408fd20 Merge branch 'jk/git-prompt'
* jk/git-prompt:
  contrib: add credential helper for OS X Keychain
  Makefile: OS X has /dev/tty
  Makefile: linux has /dev/tty
  credential: use git_prompt instead of git_getpass
  prompt: use git_terminal_prompt
  add generic terminal prompt function
  refactor git_getpass into generic prompt function
  move git_getpass to its own source file
  imap-send: don't check return value of git_getpass
  imap-send: avoid buffer overflow

Conflicts:
	Makefile
2011-12-22 11:27:23 -08:00
Junio C Hamano 2dccad3c6f Merge branch 'ab/enable-i18n'
* ab/enable-i18n:
  i18n: add infrastructure for translating Git with gettext

Conflicts:
	Makefile
2011-12-19 16:06:41 -08:00
Junio C Hamano 33e7fefef6 Merge branch 'tr/cache-tree'
* tr/cache-tree:
  reset: update cache-tree data when appropriate
  commit: write cache-tree data when writing index anyway
  Refactor cache_tree_update idiom from commit
  Test the current state of the cache-tree optimization
  Add test-scrap-cache-tree
2011-12-19 16:05:20 -08:00
Junio C Hamano 367d20ec6b Merge branch 'jk/credentials'
* jk/credentials:
  t: add test harness for external credential helpers
  credentials: add "store" helper
  strbuf: add strbuf_add*_urlencode
  Makefile: unix sockets may not available on some platforms
  credentials: add "cache" helper
  docs: end-user documentation for the credential subsystem
  credential: make relevance of http path configurable
  credential: add credential.*.username
  credential: apply helper config
  http: use credential API to get passwords
  credential: add function for parsing url components
  introduce credentials API
  t5550: fix typo
  test-lib: add test_config_global variant

Conflicts:
	strbuf.c
2011-12-19 16:05:16 -08:00
Junio C Hamano 48b303675a Merge branch 'jc/stream-to-pack'
* jc/stream-to-pack:
  bulk-checkin: replace fast-import based implementation
  csum-file: introduce sha1file_checkpoint
  finish_tmp_packfile(): a helper function
  create_tmp_packfile(): a helper function
  write_pack_header(): a helper function

Conflicts:
	pack.h
2011-12-16 22:33:40 -08:00
Jeff King 3f3a9701ae Makefile: OS X has /dev/tty
We can use our enhanced getpass(). Tested by me.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-12 16:09:39 -08:00
Jeff King 9b4b894601 Makefile: linux has /dev/tty
Therefore we can turn on our custom prompt function instead
of relying on getpass.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-12 16:09:39 -08:00
Jeff King 21aeafceda add generic terminal prompt function
When we need to prompt the user for input interactively, we
want to access their terminal directly. We can't rely on
stdio because it may be connected to pipes or files, rather
than the terminal. Instead, we use "getpass()", because it
abstracts the idea of prompting and reading from the
terminal.  However, it has some problems:

  1. It never echoes the typed characters, which makes it OK
     for passwords but annoying for other input (like usernames).

  2. Some implementations of getpass() have an extremely
     small input buffer (e.g., Solaris 8 is reported to
     support only 8 characters).

  3. Some implementations of getpass() will fall back to
     reading from stdin (e.g., glibc). We explicitly don't
     want this, because our stdin may be connected to a pipe
     speaking a particular protocol, and reading will
     disrupt the protocol flow (e.g., the remote-curl
     helper).

  4. Some implementations of getpass() turn off signals, so
     that hitting "^C" on the terminal does not break out of
     the password prompt. This can be a mild annoyance.

Instead, let's provide an abstract "git_terminal_prompt"
function that addresses these concerns. This patch includes
an implementation based on /dev/tty, enabled by setting
HAVE_DEV_TTY. The fallback is to use getpass() as before.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-12 16:09:38 -08:00
Jeff King 71e1b4b6bf credentials: add "store" helper
This is like "cache", except that we actually put the
credentials on disk. This can be terribly insecure, of
course, but we do what we can to protect them by filesystem
permissions, and we warn the user in the documentation.

This is not unlike using .netrc to store entries, but it's a
little more user-friendly. Instead of putting credentials in
place ahead of time, we transparently store them after
prompting the user for them once.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-12 16:09:38 -08:00
Jeff King d3c58b83ae move git_getpass to its own source file
This is currently in connect.c, but really has nothing to
do with the git protocol itself. Let's make a new source
file all about prompting the user, which will make it
cleaner to refactor.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-12 16:09:38 -08:00
Johannes Sixt 6320358e31 Makefile: unix sockets may not available on some platforms
Introduce a configuration option NO_UNIX_SOCKETS to exclude code that
depends on Unix sockets and use it in MSVC and MinGW builds.

Notice that unix-socket.h was missing from LIB_H before; fix that, too.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-12 16:00:18 -08:00
Jeff King e2770979fe credentials: add "cache" helper
If you access repositories over smart-http using http
authentication, then it can be annoying to have git ask you
for your password repeatedly. We cache credentials in
memory, of course, but git is composed of many small
programs. Having to input your password for each one can be
frustrating.

This patch introduces a credential helper that will cache
passwords in memory for a short period of time.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-11 23:16:25 -08:00
Jeff King abca927dbe introduce credentials API
There are a few places in git that need to get a username
and password credential from the user; the most notable one
is HTTP authentication for smart-http pushing.

Right now the only choices for providing credentials are to
put them plaintext into your ~/.netrc, or to have git prompt
you (either on the terminal or via an askpass program). The
former is not very secure, and the latter is not very
convenient.

Unfortunately, there is no "always best" solution for
password management. The details will depend on the tradeoff
you want between security and convenience, as well as how
git can integrate with other security systems (e.g., many
operating systems provide a keychain or password wallet for
single sign-on).

This patch provides an abstract notion of credentials as a
data item, and provides three basic operations:

  - fill (i.e., acquire from external storage or from the
    user)

  - approve (mark a credential as "working" for further
    storage)

  - reject (mark a credential as "not working", so it can
    be removed from storage)

These operations can be backed by external helper processes
that interact with system- or user-specific secure storage.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-11 23:16:24 -08:00
Junio C Hamano eb8aa3d2c2 Merge branch 'jc/pull-signed-tag'
* jc/pull-signed-tag:
  commit-tree: teach -m/-F options to read logs from elsewhere
  commit-tree: update the command line parsing
  commit: teach --amend to carry forward extra headers
  merge: force edit and no-ff mode when merging a tag object
  commit: copy merged signed tags to headers of merge commit
  merge: record tag objects without peeling in MERGE_HEAD
  merge: make usage of commit->util more extensible
  fmt-merge-msg: Add contents of merged tag in the merge message
  fmt-merge-msg: package options into a structure
  fmt-merge-msg: avoid early returns
  refs DWIMmery: use the same rule for both "git fetch" and others
  fetch: allow "git fetch $there v1.0" to fetch a tag
  merge: notice local merging of tags and keep it unwrapped
  fetch: do not store peeled tag object names in FETCH_HEAD
  Split GPG interface into its own helper library

Conflicts:
	builtin/fmt-merge-msg.c
	builtin/merge.c
2011-12-09 13:37:09 -08:00
Junio C Hamano a4043aeafe Merge branch 'jc/request-pull-show-head-4'
* jc/request-pull-show-head-4:
  request-pull: use the annotated tag contents
  fmt-merge-msg.c: Fix an "dubious one-bit signed bitfield" sparse error
  environment.c: Fix an sparse "symbol not declared" warning
  builtin/log.c: Fix an "Using plain integer as NULL pointer" warning
  fmt-merge-msg: use branch.$name.description
  request-pull: use the branch description
  request-pull: state what commit to expect
  request-pull: modernize style
  branch: teach --edit-description option
  format-patch: use branch description in cover letter
  branch: add read_branch_desc() helper function

Conflicts:
	builtin/branch.c
2011-12-09 13:37:05 -08:00
Thomas Rast 1aed2fe394 Add test-scrap-cache-tree
A simple utility that invalidates all existing cache-tree data.  We
need this for tests.  (We don't need a tool to rebuild the cache-tree
data; git read-tree HEAD works for that.)

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-06 14:52:18 -08:00
Ævar Arnfjörð Bjarmason 5e9637c629 i18n: add infrastructure for translating Git with gettext
Change the skeleton implementation of i18n in Git to one that can show
localized strings to users for our C, Shell and Perl programs using
either GNU libintl or the Solaris gettext implementation.

This new internationalization support is enabled by default. If
gettext isn't available, or if Git is compiled with
NO_GETTEXT=YesPlease, Git falls back on its current behavior of
showing interface messages in English. When using the autoconf script
we'll auto-detect if the gettext libraries are installed and act
appropriately.

This change is somewhat large because as well as adding a C, Shell and
Perl i18n interface we're adding a lot of tests for them, and for
those tests to work we need a skeleton PO file to actually test
translations. A minimal Icelandic translation is included for this
purpose. Icelandic includes multi-byte characters which makes it easy
to test various edge cases, and it's a language I happen to
understand.

The rest of the commit message goes into detail about various
sub-parts of this commit.

= Installation

Gettext .mo files will be installed and looked for in the standard
$(prefix)/share/locale path. GIT_TEXTDOMAINDIR can also be set to
override that, but that's only intended to be used to test Git itself.

= Perl

Perl code that's to be localized should use the new Git::I18n
module. It imports a __ function into the caller's package by default.

Instead of using the high level Locale::TextDomain interface I've
opted to use the low-level (equivalent to the C interface)
Locale::Messages module, which Locale::TextDomain itself uses.

Locale::TextDomain does a lot of redundant work we don't need, and
some of it would potentially introduce bugs. It tries to set the
$TEXTDOMAIN based on package of the caller, and has its own
hardcoded paths where it'll search for messages.

I found it easier just to completely avoid it rather than try to
circumvent its behavior. In any case, this is an issue wholly
internal Git::I18N. Its guts can be changed later if that's deemed
necessary.

See <AANLkTilYD_NyIZMyj9dHtVk-ylVBfvyxpCC7982LWnVd@mail.gmail.com> for
a further elaboration on this topic.

= Shell

Shell code that's to be localized should use the git-sh-i18n
library. It's basically just a wrapper for the system's gettext.sh.

If gettext.sh isn't available we'll fall back on gettext(1) if it's
available. The latter is available without the former on Solaris,
which has its own non-GNU gettext implementation. We also need to
emulate eval_gettext() there.

If neither are present we'll use a dumb printf(1) fall-through
wrapper.

= About libcharset.h and langinfo.h

We use libcharset to query the character set of the current locale if
it's available. I.e. we'll use it instead of nl_langinfo if
HAVE_LIBCHARSET_H is set.

The GNU gettext manual recommends using langinfo.h's
nl_langinfo(CODESET) to acquire the current character set, but on
systems that have libcharset.h's locale_charset() using the latter is
either saner, or the only option on those systems.

GNU and Solaris have a nl_langinfo(CODESET), FreeBSD can use either,
but MinGW and some others need to use libcharset.h's locale_charset()
instead.

=Credits

This patch is based on work by Jeff Epler <jepler@unpythonic.net> who
did the initial Makefile / C work, and a lot of comments from the Git
mailing list, including Jonathan Nieder, Jakub Narebski, Johannes
Sixt, Erik Faye-Lund, Peter Krefting, Junio C Hamano, Thomas Rast and
others.

[jc: squashed a small Makefile fix from Ramsay]

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-05 20:46:55 -08:00
Junio C Hamano 5d6c53bb23 Merge branch 'na/strtoimax'
* na/strtoimax:
  Support sizes >=2G in various config options accepting 'g' sizes.
  Compatibility: declare strtoimax() under NO_STRTOUMAX
  Add strtoimax() compatibility function.
2011-12-05 15:12:49 -08:00
Junio C Hamano 568508e765 bulk-checkin: replace fast-import based implementation
This extends the earlier approach to stream a large file directly from the
filesystem to its own packfile, and allows "git add" to send large files
directly into a single pack. Older code used to spawn fast-import, but the
new bulk-checkin API replaces it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-12-01 11:46:09 -08:00
Jonathan Nieder 024c843d47 Makefile: add option to disable automatic dependency generation
Now that the COMPUTE_HEADER_DEPENDENCIES feature is turned on
automatically for compilers that support it (see v1.7.8-rc0~142^2~1,
2011-08-18), there is no easy way to force it off.  For example,
setting COMPUTE_HEADER_DEPENDENCIES to the empty string in config.mak
just tells the makefile to treat it as undefined and run a test
command to see if the -MMD option is supported.

So allow setting COMPUTE_HEADER_DEPENDENCIES=no to explicitly force
the feature off.  The new semantics:

 - "yes" means to explicitly enable the feature
 - "no" means to disable it
 - "auto" means to autodetect

The default is still "auto".  Any value other than these three will
cause the build to error out with a descriptive message so typos and
stale settings in config.mak don't result in mysterious behavior.

	Makefile:1278: *** please set COMPUTE_HEADER_DEPENDENCIES to
	yes, no, or auto (not "1").  Stop.

So now when someone using a compiler without -MMD support reports
trouble building git, you can reproduce it by running "make
COMPUTE_HEADER_DEPENDENCIES=no".

Suggested-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Tested-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-18 11:35:08 -08:00
Junio C Hamano 4c00c852b3 Sync with 1.7.7.4 2011-11-18 11:30:02 -08:00
Jonathan Nieder 487da9cdf4 Makefile: add missing header file dependencies
When the streaming filter API was introduced in v1.7.7-rc0~60^2~7
(2011-05-20), we forgot to add its header to LIB_H.  Most translation
units depend on streaming.h via cache.h.

v1.7.5-rc0~48 (Fix sparse warnings, 2011-03-22) introduced undeclared
dependencies by url.o on url.h and thread-utils.o on thread-utils.h.

Noticed by make CHECK_HEADER_DEPENDENCIES=1.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-18 10:45:33 -08:00
Junio C Hamano 2f47eae2a1 Split GPG interface into its own helper library
This mostly moves existing code from builtin/tag.c (for signing)
and builtin/verify-tag.c (for verifying) to a new gpg-interface.c
file to provide a more generic library interface.

 - sign_buffer() takes a payload strbuf, a signature strbuf, and a signing
   key, runs "gpg" to produce a detached signature for the payload, and
   appends it to the signature strbuf. The contents of a signed tag that
   concatenates the payload and the detached signature can be produced by
   giving the same strbuf as payload and signature strbuf.

 - verify_signed_buffer() takes a payload and a detached signature as
   <ptr, len> pairs, and runs "gpg --verify" to see if the payload matches
   the signature. It can optionally capture the output from GPG to allow
   the callers to pretty-print it in a way more suitable for their
   contexts.

"verify-tag" (aka "tag -v") used to save the whole tag contents as if it
is a detached signature, and fed gpg the payload part of the tag. It
relied on gpg to fail when the given tag is not signed but just is
annotated.  The updated run_gpg_verify() function detects the lack of
detached signature in the input, and errors out without bothering "gpg".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-04 21:40:25 -07:00
Nick Alcock e3eed7f8d2 Add strtoimax() compatibility function.
Since systems that omit strtoumax() will likely omit strtomax() too, and
likewise for strtoull() and strtoll(), we arrange for the make variables
NO_STRTOUMAX and NO_STRTOULL to cover both the signed and unsigned
functions, and define compatibility implementations for them.

Signed-off-by: Nick Alcock <nix@esperi.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 13:06:30 -07:00
Erik Faye-Lund 2d52ea93a7 mingw: poll.h is no longer in sys/
Earlier we moved this header file in the code but forgot to
update the Makefile that refers to it.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-01 10:02:11 -07:00
Erik Faye-Lund 0f77dea9a8 mingw: move poll out of sys-folder
Both XSI and upstream Gnulib versions expects to find poll.h at
the root of some include path, not inside the sys-folder.

This helps us when upgrading Gnulib.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-30 18:44:28 -07:00
Junio C Hamano 60f60b4962 Merge branch 'jk/argv-array' into maint
* jk/argv-array:
  run_hook: use argv_array API
  checkout: use argv_array API
  bisect: use argv_array API
  quote: provide sq_dequote_to_argv_array
  refactor argv_array into generic code
  quote.h: fix bogus comment
  add sha1_array API docs
2011-10-26 16:13:31 -07:00
Junio C Hamano 1020fbc248 Merge branch 'jc/make-tags'
* jc/make-tags:
  Makefile: ask "ls-files" to list source files if available
2011-10-21 16:04:35 -07:00
Junio C Hamano 335339758c Makefile: ask "ls-files" to list source files if available
The [ce]tags and cscope targets used to run "find" looking for any paths
that match '*.[chS]' to feed the list of source files to downstream xargs.

Use "git ls-files" if it is already available to us, and otherwise use a
tighter "find" expression that does not list directories and does not go
into our .git directory.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-18 10:03:00 -07:00
Junio C Hamano dd57c76e84 Merge branch 'jn/no-g-plus-s-on-bsd'
* jn/no-g-plus-s-on-bsd:
  Makefile: do not set setgid bit on directories on GNU/kFreeBSD
2011-10-13 19:03:21 -07:00