Commit Graph

331 Commits

Author SHA1 Message Date
Junio C Hamano
2b0dda5318 Merge branch 'dm/ni-maxhost-may-be-missing' into maint-1.8.1
Some sources failed to compile on systems that lack NI_MAXHOST in
their system header.

* dm/ni-maxhost-may-be-missing:
  git-compat-util.h: Provide missing netdb.h definitions
2013-03-25 13:45:42 -07:00
Junio C Hamano
9b79956018 Merge branch 'rj/msvc-build'
* rj/msvc-build:
  msvc: avoid collisions between "tags" and "TAGS"
  msvc: test-svn-fe: Fix linker "unresolved external" error
  msvc: Fix build by adding missing symbol defines
  msvc: git-daemon: Fix linker "unresolved external" errors
  msvc: Fix compilation errors caused by poll.h emulation
2013-03-19 12:20:40 -07:00
Junio C Hamano
31ccd35df4 Merge branch 'dm/ni-maxhost-may-be-missing'
On systems without NI_MAXHOST in their system header files,
connect.c (hence most of the transport) did not compile.

* dm/ni-maxhost-may-be-missing:
  git-compat-util.h: Provide missing netdb.h definitions
2013-03-19 12:18:21 -07:00
Erik Faye-Lund
13a2319919 Revert "compat: add strtok_r()"
This reverts commit 78457bc0cc.

commit 28c5d9e ("vcs-svn: drop string_pool") previously removed
the only call-site for strtok_r. So let's get rid of the compat
implementation as well.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-26 09:16:58 -08:00
Ramsay Jones
41f2999180 msvc: Fix compilation errors caused by poll.h emulation
Commit 0f77dea9 ("mingw: move poll out of sys-folder", 24-10-2011), along
with other commits in the 'ef/mingw-upload-archive' branch (see commit
7406aa20), effectively reintroduced the same problem addressed by commit
56fb3ddc ("msvc: Fix compilation errors in compat/win32/sys/poll.c",
04-12-2010).

In order to fix the compilation errors, we use the same solution adopted
in that earlier commit. In particular, we set _WIN32_WINNT to 0x0502
(which would target Windows Server 2003) prior to including the winsock2.h
header file.

Also, we delete the compat/vcbuild/include/sys/poll.h header file, since
it is now redundant and it's presence may cause some confusion.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Tested-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-25 12:39:56 -08:00
David Michael
3b130ade45 git-compat-util.h: Provide missing netdb.h definitions
Some platforms may lack the NI_MAXHOST and NI_MAXSERV values in their
system headers, so ensure they are available.

Signed-off-by: David Michael <fedora.dm0@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-25 12:16:08 -08:00
Junio C Hamano
393b7c3cd7 Merge branch 'jk/error-const-return'
* jk/error-const-return:
  Use __VA_ARGS__ for all of error's arguments
2013-02-14 10:29:23 -08:00
Matt Kraai
9798f7e5f9 Use __VA_ARGS__ for all of error's arguments
QNX 6.3.2 uses GCC 2.95.3 by default, and GCC 2.95.3 doesn't remove the
comma if the error macro's variable argument is left out.

Instead of testing for a sufficiently recent version of GCC, make
__VA_ARGS__ match all of the arguments.

Signed-off-by: Matt Kraai <matt.kraai@amo.abbott.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-02-08 08:22:28 -08:00
Junio C Hamano
9ecd9f5dc3 Merge branch 'nd/retire-fnmatch'
Replace our use of fnmatch(3) with a more feature-rich wildmatch.
A handful patches at the bottom have been moved to nd/wildmatch to
graduate as part of that branch, before this series solidifies.

We may want to mark USE_WILDMATCH as an experimental curiosity a
bit more clearly (i.e. should not be enabled in production
environment, because it will make the behaviour between builds
unpredictable).

* nd/retire-fnmatch:
  Makefile: add USE_WILDMATCH to use wildmatch as fnmatch
  wildmatch: advance faster in <asterisk> + <literal> patterns
  wildmatch: make a special case for "*/" with FNM_PATHNAME
  test-wildmatch: add "perf" command to compare wildmatch and fnmatch
  wildmatch: support "no FNM_PATHNAME" mode
  wildmatch: make dowild() take arbitrary flags
  wildmatch: rename constants and update prototype
2013-01-25 12:34:55 -08:00
Junio C Hamano
fa2f83c654 Merge branch 'jk/suppress-clang-warning'
* jk/suppress-clang-warning:
  fix clang -Wunused-value warnings for error functions
2013-01-23 21:19:00 -08:00
Max Horn
5ded807f7c fix clang -Wunused-value warnings for error functions
Commit a469a10 wraps some error calls in macros to give the
compiler a chance to do more static analysis on their
constant -1 return value.  We limit the use of these macros
to __GNUC__, since gcc is the primary beneficiary of the new
information, and because we use GNU features for handling
variadic macros.

However, clang also defines __GNUC__, but generates warnings
with -Wunused-value when these macros are used in a void
context, because the constant "-1" ends up being useless.
Gcc does not complain about this case (though it is unclear
if it is because it is smart enough to see what we are
doing, or too dumb to realize that the -1 is unused).  We
can squelch the warning by just disabling these macros when
clang is in use.

Signed-off-by: Max Horn <max@quendi.de>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-16 12:47:46 -08:00
Junio C Hamano
e6f1550aa5 Merge branch 'jn/warn-on-inaccessible-loosen' into maint
When attempting to read the XDG-style $HOME/.config/git/config and
finding that $HOME/.config/git is a file, we gave a wrong error
message, instead of treating the case as "a custom config file does
not exist there" and moving on.

* jn/warn-on-inaccessible-loosen:
  config: exit on error accessing any config file
  doc: advertise GIT_CONFIG_NOSYSTEM
  config: treat user and xdg config permission problems as errors
  config, gitignore: failure to access with ENOTDIR is ok
2013-01-11 16:47:07 -08:00
Junio C Hamano
2adf7247ec Merge branch 'nd/wildmatch'
Allows pathname patterns in .gitignore and .gitattributes files
with double-asterisks "foo/**/bar" to match any number of directory
hierarchies.

* nd/wildmatch:
  wildmatch: replace variable 'special' with better named ones
  compat/fnmatch: respect NO_FNMATCH* even on glibc
  wildmatch: fix "**" special case
  t3070: Disable some failing fnmatch tests
  test-wildmatch: avoid Windows path mangling
  Support "**" wildcard in .gitignore and .gitattributes
  wildmatch: make /**/ match zero or more directories
  wildmatch: adjust "**" behavior
  wildmatch: fix case-insensitive matching
  wildmatch: remove static variable force_lower_case
  wildmatch: make wildmatch's return value compatible with fnmatch
  t3070: disable unreliable fnmatch tests
  Integrate wildmatch to git
  wildmatch: follow Git's coding convention
  wildmatch: remove unnecessary functions
  Import wildmatch from rsync
  ctype: support iscntrl, ispunct, isxdigit and isprint
  ctype: make sane_ctype[] const array

Conflicts:
	Makefile
2013-01-10 13:47:20 -08:00
Junio C Hamano
4f43e9726a Merge branch 'jn/warn-on-inaccessible-loosen'
Deal with a situation where .config/git is a file and we notice
.config/git/config is not readable due to ENOTDIR, not ENOENT.

* jn/warn-on-inaccessible-loosen:
  config: exit on error accessing any config file
  doc: advertise GIT_CONFIG_NOSYSTEM
  config: treat user and xdg config permission problems as errors
  config, gitignore: failure to access with ENOTDIR is ok
2013-01-06 22:11:16 -08:00
Junio C Hamano
29fb151525 Merge branch 'jk/error-const-return'
Help compilers' flow analysis by making it more explicit that
error() always returns -1, to reduce false "variable used
uninitialized" warnings.  Looks somewhat ugly but not too much.

* jk/error-const-return:
  silence some -Wuninitialized false positives
  make error()'s constant return value more visible
2013-01-05 23:42:00 -08:00
Nguyễn Thái Ngọc Duy
cebcab189a Makefile: add USE_WILDMATCH to use wildmatch as fnmatch
This is similar to NO_FNMATCH but it uses wildmatch instead of
compat/fnmatch. This is an intermediate step to let wildmatch be used
as fnmatch replacement for wider audience before it replaces fnmatch
completely and compat/fnmatch is removed.

fnmatch in test-wildmatch is not impacted by this and is the only
place that NO_FNMATCH or NO_FNMATCH_CASEFOLD remain active when
USE_WILDMATCH is set.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-01 15:32:37 -08:00
Matt Kraai
40036bedb9 Port to QNX
Signed-off-by: Matt Kraai <matt.kraai@amo.abbott.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-19 19:00:00 -08:00
Junio C Hamano
b2d05e0653 git-compat-util.h: do not #include <sys/param.h> by default
Earlier we allowed platforms that lack <sys/param.h> not to include
the header file from git-compat-util.h; we have included this header
file since the early days back when we used MAXPATHLEN (which we no
longer use) and also depended on it slurping ULONG_MAX (which we get
by including stdint.h or inttypes.h these days).

It turns out that we can compile our modern codebase just file
without including it on many platforms (so far, Fedora, Debian,
Ubuntu, MinGW, Mac OS X, Cygwin, HP-Nonstop, QNX and z/OS are
reported to be OK).

Let's stop including it by default, and on platforms that need it to
be included, leave "make NEEDS_SYS_PARAM_H=YesPlease" as an escape
hatch and ask them to report to us, so that we can find out about
the real dependency and fix it in a more platform agnostic way.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-19 18:57:46 -08:00
Jeff King
e208f9cc75 make error()'s constant return value more visible
When git is compiled with "gcc -Wuninitialized -O3", some
inlined calls provide an additional opportunity for the
compiler to do static analysis on variable initialization.
For example, with two functions like this:

  int get_foo(int *foo)
  {
	if (something_that_might_fail() < 0)
		return error("unable to get foo");
	*foo = 0;
	return 0;
  }

  void some_fun(void)
  {
	  int foo;
	  if (get_foo(&foo) < 0)
		  return -1;
	  printf("foo is %d\n", foo);
  }

If get_foo() is not inlined, then when compiling some_fun,
gcc sees only that a pointer to the local variable is
passed, and must assume that it is an out parameter that
is initialized after get_foo returns.

However, when get_foo() is inlined, the compiler may look at
all of the code together and see that some code paths in
get_foo() do not initialize the variable. As a result, it
prints a warning. But what the compiler can't see is that
error() always returns -1, and therefore we know that either
we return early from some_fun, or foo ends up initialized,
and the code is safe.  The warning is a false positive.

If we can make the compiler aware that error() will always
return -1, it can do a better job of analysis. The simplest
method would be to inline the error() function. However,
this doesn't work, because gcc will not inline a variadc
function. We can work around this by defining a macro. This
relies on two gcc extensions:

  1. Variadic macros (these are present in C99, but we do
     not rely on that).

  2. Gcc treats the "##" paste operator specially between a
     comma and __VA_ARGS__, which lets our variadic macro
     work even if no format parameters are passed to
     error().

Since we are using these extra features, we hide the macro
behind an #ifdef. This is OK, though, because our goal was
just to help gcc.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-15 10:45:58 -08:00
David Michael
b3e103dabe Generalize the inclusion of strings.h
The header strings.h was formerly only included for HP NonStop (aka
Tandem) to define strcasecmp, but another platform requiring this
inclusion has been found.  The build system will now include the
file based on its presence determined by configure.

Signed-off-by: David Michael <fedora.dm0@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-15 10:17:39 -08:00
David Michael
6ede720529 Support builds when sys/param.h is missing
An option is added to the Makefile to skip the inclusion of sys/param.h.
The only known platform with this condition thus far is the z/OS UNIX System
Services environment.

Signed-off-by: David Michael <fedora.dm0@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-15 10:13:23 -08:00
Junio C Hamano
fd778c09b1 Merge branch 'js/format-2047' into maint
Various rfc2047 quoting issues around a non-ASCII name on the From:
line in the output from format-patch have been corrected.

* js/format-2047:
  format-patch tests: check quoting/encoding in To: and Cc: headers
  format-patch: fix rfc2047 address encoding with respect to rfc822 specials
  format-patch: make rfc2047 encoding more strict
  format-patch: introduce helper function last_line_length()
  format-patch: do not wrap rfc2047 encoded headers too late
  format-patch: do not wrap non-rfc2047 headers too early
  utf8: fix off-by-one wrapping of text
2012-11-20 09:57:44 -08:00
Jeff King
64b22a5894 Merge branch 'js/format-2047'
Fixes many rfc2047 quoting issues in the output from format-patch.

* js/format-2047:
  format-patch tests: check quoting/encoding in To: and Cc: headers
  format-patch: fix rfc2047 address encoding with respect to rfc822 specials
  format-patch: make rfc2047 encoding more strict
  format-patch: introduce helper function last_line_length()
  format-patch: do not wrap rfc2047 encoded headers too late
  format-patch: do not wrap non-rfc2047 headers too early
  utf8: fix off-by-one wrapping of text
2012-11-09 12:42:32 -05:00
Jan H. Schönherr
0fcec2ce54 format-patch: make rfc2047 encoding more strict
RFC 2047 requires more characters to be encoded than it is currently done.
Especially, RFC 2047 distinguishes between allowed remaining characters
in encoded words in addresses (From, To, etc.) and other headers, such
as Subject.

Make add_rfc2047() and is_rfc2047_special() location dependent and include
all non-allowed characters to hopefully be RFC 2047 conformant.

This especially fixes a problem, where RFC 822 specials (e. g. ".") were
left unencoded in addresses, which was solved with a non-standard-conforming
workaround in the past (which is going to be removed in a follow-up patch).

Signed-off-by: Jan H. Schönherr <schnhrr@cs.tu-berlin.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-18 14:23:34 -07:00
Nguyễn Thái Ngọc Duy
1c149ab2dd ctype: support iscntrl, ispunct, isxdigit and isprint
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-15 14:58:16 -07:00
Nguyễn Thái Ngọc Duy
ca5ab7d1e8 ctype: make sane_ctype[] const array
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-15 14:58:16 -07:00
Jonathan Nieder
96b9e0e313 config: treat user and xdg config permission problems as errors
Git reads multiple configuration files: settings come first from the
system config file (typically /etc/gitconfig), then the xdg config
file (typically ~/.config/git/config), then the user's dotfile
(~/.gitconfig), then the repository configuration (.git/config).

Git has always used access(2) to decide whether to use each file; as
an unfortunate side effect, that means that if one of these files is
unreadable (e.g., EPERM or EIO), git skips it.  So if I use
~/.gitconfig to override some settings but make a mistake and give it
the wrong permissions then I am subject to the settings the sysadmin
chose for /etc/gitconfig.

Better to error out and ask the user to correct the problem.

This only affects the user and xdg config files, since the user
presumably has enough access to fix their permissions.  If the system
config file is unreadable, the best we can do is to warn about it so
the user knows to notify someone and get on with work in the meantime.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-13 21:59:16 -07:00
Jonathan Nieder
e5c52c9898 config, gitignore: failure to access with ENOTDIR is ok
The access_or_warn() function is used to check for optional
configuration files like .gitconfig and .gitignore and warn when they
are not accessible due to a configuration issue (e.g., bad
permissions).  It is not supposed to complain when a file is simply
missing.

Noticed on a system where ~/.config/git was a file --- when the new
XDG_CONFIG_HOME support looks for ~/.config/git/config it should
ignore ~/.config/git instead of printing irritating warnings:

 $ git status -s
 warning: unable to access '/home/jrn/.config/git/config': Not a directory
 warning: unable to access '/home/jrn/.config/git/config': Not a directory
 warning: unable to access '/home/jrn/.config/git/config': Not a directory
 warning: unable to access '/home/jrn/.config/git/config': Not a directory

Compare v1.7.12.1~2^2 (attr:failure to open a .gitattributes file
is OK with ENOTDIR, 2012-09-13).

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-13 21:59:13 -07:00
Joachim Schmitz
6c109904bc Port to HP NonStop
Includes the addition of some new defines and their description for others to use.

Signed-off-by: Joachim Schmitz <jojo@schmitz-digital.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-19 17:31:25 -07:00
Junio C Hamano
067a1f552e Merge branch 'js/compat-itimer'
Pieces to support compilation on __TANDEM.

* js/compat-itimer:
  Add a no-op setitimer() wrapper
2012-09-12 14:21:44 -07:00
Joachim Schmitz
7f9e848cf8 Add a no-op setitimer() wrapper
The current code uses setitimer() only for reducing perceived
latency.  On platforms that lack setitimer() (e.g. HP NonStop),
allow builders to say "make NO_SETITIMER=YesPlease" to use a no-op
substitute, as doing so would not affect correctness.

HP NonStop does provide struct itimerval, but other platforms may
not, so this is taken care of in this commit too, by setting
NO_STRUCT_ITIMERVAL.

Signed-off-by: Joachim Schmitz <jojo@schmitz-digital.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-08 20:35:19 -07:00
Junio C Hamano
7fe136d78f Merge branch 'jk/config-warn-on-inaccessible-paths'
When looking for $HOME/.gitconfig etc., it is OK if we cannot read
them because they do not exist, but we did not diagnose existing
files that we cannot read.

* jk/config-warn-on-inaccessible-paths:
  warn_on_inaccessible(): a helper to warn on inaccessible paths
  attr: warn on inaccessible attribute files
  gitignore: report access errors of exclude files
  config: warn on inaccessible files
2012-09-07 11:08:56 -07:00
Joachim Schmitz
0539ecfdfc compat: some mkdir() do not like a slash at the end
Introduce a compatibility helper for platforms with such a mkdir().

Signed-off-by: Joachim Schmitz <jojo@schmitz-digital.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-24 09:48:51 -07:00
Junio C Hamano
55b38a48e2 warn_on_inaccessible(): a helper to warn on inaccessible paths
The previous series introduced warnings to multiple places, but it
could become tiring to see the warning on the same path over and
over again during a single run of Git.  Making just one function
responsible for issuing this warning, we could later choose to keep
track of which paths we issued a warning (it would involve a hash
table of paths after running them through real_path() or something)
in order to reduce noise.

Right now we do not know if the noise reduction is necessary, but it
still would be a good code reduction/sharing anyway.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-21 14:52:07 -07:00
Jeff King
ba8bd8300a config: warn on inaccessible files
Before reading a config file, we check "!access(path, R_OK)"
to make sure that the file exists and is readable. If it's
not, then we silently ignore it.

For the case of ENOENT, this is fine, as the presence of the
file is optional. For other cases, though, it may indicate a
configuration error (e.g., not having permissions to read
the file). Let's print a warning in these cases to let the
user know.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-21 14:46:11 -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
Jeff King
2f70587502 ident: report passwd errors with a more friendly message
When getpwuid fails, we give a cute but cryptic message.
While it makes sense if you know that getpwuid or identity
functions are being called, this code is triggered behind
the scenes by quite a few git commands these days (e.g.,
receive-pack on a remote server might use it for a reflog;
the current message is hard to distinguish from an
authentication error).  Let's switch to something that gives
a little more context.

While we're at it, we can factor out all of the
cut-and-pastes of the "you don't exist" message into a
wrapper function. Rather than provide xgetpwuid, let's make
it even more specific to just getting the passwd entry for
the current uid. That's the only way we use getpwuid anyway,
and it lets us make an even more specific error message.

The current message also fails to mention errno. While the
usual cause for getpwuid failing is that the user does not
exist, mentioning errno makes it easier to diagnose these
problems.  Note that POSIX specifies that errno remain
untouched if the passwd entry does not exist (but will be
set on actual errors), whereas some systems will return
ENOENT or similar for a missing entry. We handle both cases
in our wrapper.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-22 09:08:20 -07:00
Junio C Hamano
1e4d0875ac Merge branch 'jc/pickaxe-ignore-case'
By Junio C Hamano (2) and Ramsay Jones (1)
* jc/pickaxe-ignore-case:
  ctype.c: Fix a sparse warning
  pickaxe: allow -i to search in patch case-insensitively
  grep: use static trans-case table
2012-03-07 12:12:59 -08:00
Ramsay Jones
f1589d1007 ctype.c: Fix a sparse warning
In particular, sparse complains as follows:

        SP ctype.c
    ctype.c:30:12: warning: symbol 'tolower_trans_tbl' was not declared.\
         Should it be static?

An appropriate extern declaration for the 'tolower_trans_tbl' symbol
is included in the "cache.h" header file. In order to suppress the
warning, therefore, we could replace the "git-compat-util.h" header
inclusion with "cache.h", since "cache.h" includes "git-compat-util.h"
in turn. Here, however, we choose to move the extern declaration for
'tolower_trans_tbl' into "git-compat-util.h", alongside the other
extern declaration from ctype.c for 'sane_ctype'.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-04 21:17:25 -08:00
Namhyung Kim
43ccdf56ec ctype: implement islower/isupper macro
"perf" uses a the forked copy of this file, and wants to use these two
macros.

Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-10 12:56:29 -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
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
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
Junio C Hamano
cd17abdf75 Merge branch 'vr/msvc'
* vr/msvc:
  MSVC: Remove unneeded header stubs
  Compile fix for MSVC: Include <io.h>
  Compile fix for MSVC: Do not include sys/resources.h
2011-12-05 15:12:54 -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
Ramkumar Ramachandra
e4ac953b2a git-compat-util: don't assume value for undefined variable
Suggested-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-15 16:09:34 -08:00
Johannes Sixt
97000ba6e2 Compatibility: declare strtoimax() under NO_STRTOUMAX
The previous one introduced an implementation of the function, but forgot
to add a declaration.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-05 23:10:24 -07:00
Vincent van Ravesteijn
cfc755d30e Compile fix for MSVC: Do not include sys/resources.h
Do not include header files when compiling with MSVC that do not
exist and which are also not included when compiling with MINGW.
A direct consequence is that git can be compiled again with MSVC
because the missing "sys/resources.h" is no longer included.

Instead of current

	#ifndef mingw32 is the only one that is strange
        ... everything for systems that is not strange ...
        #else
        ... include mingw specific tweaks ...
        #endif
        #ifdef msvc is also strange
        ... include msvc specific tweaks ...
        #endif

it turns things around and says what it wants to achieve in a more direct
way, i.e.

	#if mingw32
        #include "compat/mingw.h"
	#elif msvc
        #include "compat/msvc.h"
	#else
        ... all the others ...
	#endif

which makes it a lot simpler.

Signed-off-by: Vincent van Ravesteijn <vfr@lyx.org>
Helped-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-31 20:05:57 -07:00
Junio C Hamano
253348b2db Merge branch 'cb/maint-exec-error-report'
* cb/maint-exec-error-report:
  notice error exit from pager
  error_routine: use parent's stderr if exec fails
2011-08-17 17:25:55 -07:00
Clemens Buchacher
3bc4181fde error_routine: use parent's stderr if exec fails
The new process's error output may be redirected elsewhere, but if
the exec fails, output should still go to the parent's stderr. This
has already been done for the die_routine. Do the same for
error_routine.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-31 18:27:07 -07:00
Junio C Hamano
d37b2991b1 Merge branch 'ak/gcc46-profile-feedback'
* ak/gcc46-profile-feedback:
  Add explanation of the profile feedback build to the README
  Add profile feedback build to git
  Add option to disable NORETURN
2011-07-19 09:32:52 -07:00
Junio C Hamano
033c2dc436 Merge branch 'ef/maint-win-verify-path'
* ef/maint-win-verify-path:
  verify_dotfile(): do not assume '/' is the path seperator
  verify_path(): simplify check at the directory boundary
  verify_path: consider dos drive prefix
  real_path: do not assume '/' is the path seperator
  A Windows path starting with a backslash is absolute
2011-06-29 17:09:17 -07:00
Junio C Hamano
6520c84685 Add option to disable NORETURN
Due to a bug in gcc 4.6+ it can crash when doing profile feedback
with a noreturn function pointer

(http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49299)

This adds a Makefile variable to disable noreturns.

[Patch by Junio, description by Andi Kleen]

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-20 12:32:39 -07:00
Theo Niessink
d1c69255a1 real_path: do not assume '/' is the path seperator
real_path currently assumes it's input had '/' as path seperator.
This assumption does not hold true for the code-path from
prefix_path (on Windows), where real_path can be called before
normalize_path_copy.

Fix real_path so it doesn't make this assumption. Create a helper
function to reverse-search for the last path-seperator in a string.

Signed-off-by: Theo Niessink <theo@taletn.com>
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-27 10:59:16 -07:00
Junio C Hamano
be5ab43566 Merge branch 'jc/magic-pathspec'
* jc/magic-pathspec:
  setup.c: Fix some "symbol not declared" sparse warnings
  t3703: Skip tests using directory name ":" on Windows
  revision.c: leave a note for "a lone :" enhancement
  t3703, t4208: add test cases for magic pathspec
  rev/path disambiguation: further restrict "misspelled index entry" diag
  fix overslow :/no-such-string-ever-existed diagnostics
  fix overstrict :<path> diagnosis
  grep: use get_pathspec() correctly
  pathspec: drop "lone : means no pathspec" from get_pathspec()
  Revert "magic pathspec: add ":(icase)path" to match case insensitively"
  magic pathspec: add ":(icase)path" to match case insensitively
  magic pathspec: futureproof shorthand form
  magic pathspec: add tentative ":/path/from/top/level" pathspec support
2011-05-23 09:58:35 -07:00
Junio C Hamano
2f6c9760de magic pathspec: futureproof shorthand form
The earlier design was to take whatever non-alnum that the short format
parser happens to support, leaving the rest as part of the pattern, so a
version of git that knows '*' magic and a version that does not would have
behaved differently when given ":*Makefile".  The former would have
applied the '*' magic to the pattern "Makefile", while the latter would
used no magic to the pattern "*Makefile".

Instead, just reserve all non-alnum ASCII letters that are neither glob
nor regexp special as potential magic signature, and when we see a magic
that is not supported, die with an error message, just like the longhand
codepath does.

With this, ":%#!*Makefile" will always mean "%#!" magic applied to the
pattern "*Makefile", no matter what version of git is used (it is a
different matter if the version of git supports all of these three magic
matching rules).

Also make ':' without anything else to mean "there is no pathspec".  This
would allow differences between "git log" and "git log ." run from the top
level of the working tree (the latter simplifies no-op commits away from
the history) to be expressed from a subdirectory by saying "git log :".

Helped-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-08 16:19:48 -07:00
Junio C Hamano
44bc573436 Merge branch 'maint'
* maint:
  Start preparing for 1.7.4.4
  pull: do not clobber untracked files on initial pull
  compat: add missing #include <sys/resource.h>

Conflicts:
	RelNotes
2011-04-03 13:53:11 -07:00
Jonathan Nieder
ebae9ff95d compat: add missing #include <sys/resource.h>
Starting with commit c793430 (Limit file descriptors used by packs,
2011-02-28), git uses getrlimit to tell how many file descriptors it
can use.  Unfortunately it does not include the header declaring that
function, resulting in compilation errors:

 sha1_file.c: In function 'open_packed_git_1':
 sha1_file.c:718: error: storage size of 'lim' isn't known
 sha1_file.c:721: warning: implicit declaration of function 'getrlimit'
 sha1_file.c:721: error: 'RLIMIT_NOFILE' undeclared (first use in this function)
 sha1_file.c:718: warning: unused variable 'lim'

The standard header to include for this is <sys/resource.h> (which on
some systems itself requires declarations from <sys/types.h> or
<sys/time.h>).  Probably the problem was missed until now because in
current glibc sys/resource.h happens to be included by sys/wait.h.

MinGW does not provide sys/resource.h (and compat/mingw takes care of
providing getrlimit some other way), so add the missing #include to
the "#ifndef __MINGW32__" block in git-compat-util.h.

Reported-by: Stefan Sperling <stsp@stsp.name>
Tested-by: Stefan Sperling <stsp@stsp.name> [on OpenBSD]
Tested-by: Arnaud Lacombe <lacombar@gmail.com> [on FreeBSD 8]
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-03 12:21:34 -07:00
Junio C Hamano
dd7d0d0976 Merge branch 'mr/hpux' into maint
* mr/hpux:
  git-compat-util.h: Honor HP C's noreturn attribute
  Makefile: add NO_FNMATCH_CASEFOLD to HP-UX section
2011-03-20 22:11:15 -07:00
Junio C Hamano
d0ef5a7e42 Merge branch 'jk/strbuf-vaddf'
* jk/strbuf-vaddf:
  compat: fall back on __va_copy if available
  strbuf: add strbuf_vaddf
  compat: provide a fallback va_copy definition
2011-03-15 14:23:04 -07:00
Junio C Hamano
848e219fe6 Merge branch 'mr/hpux'
* mr/hpux:
  git-compat-util.h: Honor HP C's noreturn attribute
  Makefile: add NO_FNMATCH_CASEFOLD to HP-UX section
2011-03-15 14:21:47 -07:00
Jonathan Nieder
26db0f2e3a compat: fall back on __va_copy if available
Since an obvious implementation of va_list is to make it a pointer
into the stack frame, implementing va_copy as "dst = src" will work on
many systems.  Platforms that use something different (e.g., a size-1
array of structs, to be assigned with *(dst) = *(src)) will need some
other compatibility macro, though.

Luckily, as the glibc manual hints, such systems tend to provide the
__va_copy macro (introduced in GCC in March, 1997).  By using that if
it is available, we can cover our bases pretty well.

Discovered by building with CC="gcc -std=c89" on an amd64 machine:

 $ make CC=c89 strbuf.o
 [...]
 strbuf.c: In function 'strbuf_vaddf':
 strbuf.c:211:2: error: incompatible types when assigning to type 'va_list'
  from type 'struct __va_list_tag *'
 make: *** [strbuf.o] Error 1

Explained-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-08 12:02:31 -08:00
Michal Rokos
b6ab349b18 git-compat-util.h: Honor HP C's noreturn attribute
HP C for Integrity servers (Itanium) gained support for noreturn
attribute sometime in 2006. It was released in Compiler Version
A.06.10 and made available in July 2006.

The __HP_cc define detects the HP C compiler version.  Precede the
__GNUC__ check so it works well when compiling with HP C using -Agcc
option that enables partial support for the GNU C dialect. The -Agcc
defines the __GNUC__ too.

Signed-off-by: Michal Rokos <michal.rokos@nextsoft.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-08 10:58:00 -08:00
Jeff King
ab8632ae36 compat: provide a fallback va_copy definition
va_copy is C99.  We have avoided using va_copy many times in the past,
which has led to a bunch of cut-and-paste.  From everything I found
searching the web, implementations have historically either provided
va_copy or just let your code assume that simple assignment of worked.

So my guess is that this will be sufficient, though we won't really
know for sure until somebody reports a problem.

Signed-off-by: Jeff King <peff@peff.net>
Improved-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-26 01:06:50 -08:00
Jonathan Nieder
1368f65002 compat: helper for detecting unsigned overflow
The idiom (a + b < a) works fine for detecting that an unsigned
integer has overflowed, but a more explicit

	unsigned_add_overflows(a, b)

might be easier to read.

Define such a macro, expanding roughly to ((a) < UINT_MAX - (b)).
Because the expansion uses each argument only once outside of sizeof()
expressions, it is safe to use with arguments that have side effects.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-10 13:47:56 -08:00
Junio C Hamano
39f04dbaac Merge branch 'jn/thinner-wrapper'
* jn/thinner-wrapper:
  Remove pack file handling dependency from wrapper.o
  pack-objects: mark file-local variable static
  wrapper: give zlib wrappers their own translation unit
  strbuf: move strbuf_branchname to sha1_name.c
  path helpers: move git_mkstemp* to wrapper.c
  wrapper: move odb_* to environment.c
  wrapper: move xmmap() to sha1_file.c
2010-12-03 16:13:06 -08:00
Junio C Hamano
ec3f7d5d0f Merge branch 'md/interix'
* md/interix:
  Interix: add configure checks
  add support for the SUA layer (interix; windows)

Conflicts:
	git-compat-util.h
2010-11-29 17:52:34 -08:00
Jonathan Nieder
463db9b104 wrapper: move odb_* to environment.c
The odb_mkstemp and odb_pack_keep functions open files under the
$GIT_OBJECT_DIRECTORY directory.  This requires access to the git
configuration which very simple programs do not need.

Move these functions to environment.o, closer to their dependencies.
This should make it easier for programs to link to wrapper.o without
linking to environment.o.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-10 11:03:38 -08:00
Erik Faye-Lund
fdc1211463 mingw: use poll-emulation from gnulib
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-04 16:53:51 -07:00
Mike Pape
da523cc597 compat: add inet_pton and inet_ntop prototypes
Windows doesn't have inet_pton and inet_ntop, so
add prototypes in git-compat-util.h for them.

At the same time include git-compat-util.h in
the sources for these functions, so they use the
network-wrappers from there on Windows.

Signed-off-by: Mike Pape <dotzenlabs@gmail.com>
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-04 16:53:49 -07:00
Mike Pape
088d880247 mingw: implement syslog
Syslog does not usually exist on Windows, so implement our own using
Window's ReportEvent mechanism.

Strings containing "%1" gets expanded into them selves by ReportEvent,
resulting in an unreadable string. "%2" and above is not a problem.
Unfortunately, on Windows an IPv6 address can contain "%1", so expand
"%1" to "% 1" before reporting. "%%1" is also a problem for ReportEvent,
but that string cannot occur in an IPv6 address.

Signed-off-by: Mike Pape <dotzenlabs@gmail.com>
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-04 16:53:49 -07:00
Markus Duft
2844923d62 add support for the SUA layer (interix; windows)
* add required build options to Makefile.
* introduce new NO_INTTYPES_H for systems lacking inttypes; code
  includes stdint.h instead, if this is set.
* introduce new NO_SYS_POLL_H for systems lacking sys/poll.h; code
  includes poll.h instead, if this is set.
* introduce NO_INITGROUPS. initgroups() call is simply omitted.

Signed-off-by: Markus Duft <mduft@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-28 17:52:22 -07:00
Erik Faye-Lund
c03c83152d do not depend on signed integer overflow
Signed integer overflow is not defined in C, so do not depend on it.

This fixes a problem with GCC 4.4.0 and -O3 where the optimizer would
consider "consumed_bytes > consumed_bytes + bytes" as a constant
expression, and never execute the die()-call.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-06 11:10:07 -07:00
Ramsay Jones
5418d96ddc vcs-svn: Fix some printf format compiler warnings
In particular, on systems that define uint32_t as an unsigned long,
gcc complains as follows:

      CC vcs-svn/fast_export.o
  vcs-svn/fast_export.c: In function `fast_export_modify':
  vcs-svn/fast_export.c:28: warning: unsigned int format, uint32_t arg (arg 2)
  vcs-svn/fast_export.c:28: warning: int format, uint32_t arg (arg 3)
  vcs-svn/fast_export.c: In function `fast_export_commit':
  vcs-svn/fast_export.c:42: warning: int format, uint32_t arg (arg 5)
  vcs-svn/fast_export.c:62: warning: int format, uint32_t arg (arg 2)
  vcs-svn/fast_export.c: In function `fast_export_blob':
  vcs-svn/fast_export.c:72: warning: int format, uint32_t arg (arg 2)
  vcs-svn/fast_export.c:72: warning: int format, uint32_t arg (arg 3)
      CC vcs-svn/svndump.o
  vcs-svn/svndump.c: In function `svndump_read':
  vcs-svn/svndump.c:260: warning: int format, uint32_t arg (arg 3)

In order to suppress the warnings we use the C99 format specifier
macros PRIo32 and PRIu32 from <inttypes.h>.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-12 10:24:55 -07:00
Junio C Hamano
aca35505db Merge branch 'jn/svn-fe'
* jn/svn-fe:
  t/t9010-svn-fe.sh: add an +x bit to this test
  t9010 (svn-fe): avoid symlinks in test
  t9010 (svn-fe): use Unix-style path in URI
  vcs-svn: Avoid %z in format string
  vcs-svn: Rename dirent pool to build on Windows
  compat: add strtok_r()
  treap: style fix
  vcs-svn: remove build artifacts on "make clean"
  svn-fe manual: Clarify warning about deltas in dump files
  Update svn-fe manual
  SVN dump parser
  Infrastructure to write revisions in fast-export format
  Add stream helper library
  Add string-specific memory pool
  Add treap implementation
  Add memory pool library
  Introduce vcs-svn lib
2010-08-31 16:23:38 -07:00
Junio C Hamano
7e00a9104b Merge branch 'tr/xsize-bits'
* tr/xsize-bits:
  xsize_t: check whether we lose bits
2010-08-18 12:14:23 -07:00
Jonathan Nieder
78457bc0cc compat: add strtok_r()
Windows does not have strtok_r (and while it does have an identical
strtok_s, but it is not obvious how to use it).  Grab an
implementation from glibc.

The svn-fe tool uses strtok_r to parse paths.

Acked-by: Johannes Sixt <j6t@kdbg.org>
Helped-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-14 19:35:38 -07:00
Thomas Rast
46be82dfd0 xsize_t: check whether we lose bits
Attempting to mmap (via git-add or similar) a file larger than 4GB on
32-bit Linux systems results in a repository that has only the file
modulo 4GB stored, because of truncation of the off_t file size to a
size_t for mmap.

When xsize_t was introduced to handle this truncation in dc49cd7 (Cast
64 bit off_t to 32 bit size_t, 2007-03-06), Shawn even pointed out
that it should detect when such a cutoff happens.

Make it so.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-28 14:08:44 -07:00
Junio C Hamano
762655010d Merge branch 'js/async-thread'
* js/async-thread:
  fast-import: die_nicely() back to vsnprintf (reverts part of ebaa79f)
  Enable threaded async procedures whenever pthreads is available
  Dying in an async procedure should only exit the thread, not the process.
  Reimplement async procedures using pthreads
  Windows: more pthreads functions
  Fix signature of fcntl() compatibility dummy
  Make report() from usage.c public as vreportf() and use it.
  Modernize t5530-upload-pack-error.

Conflicts:
	http-backend.c
2010-06-21 06:02:45 -07:00
Junio C Hamano
8d676d85f7 Merge branch 'gv/portable'
* gv/portable:
  test-lib: use DIFF definition from GIT-BUILD-OPTIONS
  build: propagate $DIFF to scripts
  Makefile: Tru64 portability fix
  Makefile: HP-UX 10.20 portability fixes
  Makefile: HPUX11 portability fixes
  Makefile: SunOS 5.6 portability fix
  inline declaration does not work on AIX
  Allow disabling "inline"
  Some platforms lack socklen_t type
  Make NO_{INET_NTOP,INET_PTON} configured independently
  Makefile: some platforms do not have hstrerror anywhere
  git-compat-util.h: some platforms with mmap() lack MAP_FAILED definition
  test_cmp: do not use "diff -u" on platforms that lack one
  fixup: do not unconditionally disable "diff -u"
  tests: use "test_cmp", not "diff", when verifying the result
  Do not use "diff" found on PATH while building and installing
  enums: omit trailing comma for portability
  Makefile: -lpthread may still be necessary when libc has only pthread stubs
  Rewrite dynamic structure initializations to runtime assignment
  Makefile: pass CPPFLAGS through to fllow customization

Conflicts:
	Makefile
	wt-status.h
2010-06-21 06:02:44 -07:00
Junio C Hamano
44e08b003d Merge branch 'js/try-to-free-stackable'
* js/try-to-free-stackable:
  Do not call release_pack_memory in malloc wrappers when GIT_TRACE is used
  Have set_try_to_free_routine return the previous routine
2010-06-13 11:21:21 -07:00
Junio C Hamano
bdc4204119 Merge branch 'maint'
* maint:
  git-compat-util.h: use apparently more common __sgi macro to detect SGI IRIX
  Documentation: A...B shortcut for checkout and rebase
  Documentation/pretty-{formats,options}: better reference for "format:<string>"
2010-06-02 10:17:26 -07:00
Gary V. Vaughan
761a889a97 git-compat-util.h: use apparently more common __sgi macro to detect SGI IRIX
IRIX 6.5.26m does not define the 'sgi' macro, but it does define an '__sgi'
macro.  Since later IRIX versions (6.5.29m) define both macros, and since
an underscore prefixed macro is preferred anyway, use '__sgi' to detect
compilation on SGI IRIX.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-02 10:03:53 -07:00
Gary V. Vaughan
fcf3a21acc git-compat-util.h: some platforms with mmap() lack MAP_FAILED definition
Some platforms with mmap() lack MAP_FAILED definition.

Signed-off-by: Gary V. Vaughan <gary@thewrittenword.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-31 17:36:27 -07:00
Junio C Hamano
455bda993c Merge branch 'cw/maint-exec-defpath'
* cw/maint-exec-defpath:
  autoconf: Check if <paths.h> exists and set HAVE_PATHS_H
  exec_cmd.c: replace hard-coded path list with one from <paths.h>
2010-05-21 04:02:17 -07:00
Junio C Hamano
ea5f75a64a Merge branch 'np/malloc-threading'
* np/malloc-threading:
  Thread-safe xmalloc and xrealloc needs a recursive mutex
  Make xmalloc and xrealloc thread-safe
2010-05-21 04:02:16 -07:00
Junio C Hamano
3ecaa3b6a5 Merge branch 'pc/remove-warn'
* pc/remove-warn:
  Remove a redundant errno test in a usage of remove_path
  Introduce remove_or_warn function
  Implement the rmdir_or_warn function
  Generalise the unlink_or_warn function
2010-05-08 22:32:59 -07:00
Johannes Sixt
851c34b04e Have set_try_to_free_routine return the previous routine
This effectively requires from the callers of set_try_to_free_routine to
treat the try-to-free-routines as a stack.

We will need this for the next patch where the only current caller cannot
depend on that the previously set routine was the default routine.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-08 22:27:54 -07:00
Chris Webb
cb6a22c076 exec_cmd.c: replace hard-coded path list with one from <paths.h>
The default executable path list used by exec_cmd.c is hard-coded to
be "/usr/local/bin:/usr/bin:/bin".  Use an appropriate value for the
system from <paths.h> when available.

Add HAVE_PATHS_H make variables and enable it on Linux, FreeBSD,
NetBSD, OpenBSD and GNU where it is known to exist for now. Somebody
else may want to do an autoconf support later.

Signed-off-by: Chris Webb <chris@arachsys.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-15 12:07:51 -07:00
Junio C Hamano
16b8a3e4b9 Merge branch 'jn/merge-diff3-label'
* jn/merge-diff3-label:
  merge-recursive: add a label for ancestor
  cherry-pick, revert: add a label for ancestor
  revert: clarify label on conflict hunks
  compat: add mempcpy()
  checkout -m --conflict=diff3: add a label for ancestor
  merge_trees(): add ancestor label parameter for diff3-style output
  merge_file(): add comment explaining behavior wrt conflict style
  checkout --conflict=diff3: add a label for ancestor
  ll_merge(): add ancestor label parameter for diff3-style output
  merge-file --diff3: add a label for ancestor
  xdl_merge(): move file1 and file2 labels to xmparam structure
  xdl_merge(): add optional ancestor label to diff3-style output
  tests: document cherry-pick behavior in face of conflicts
  tests: document format of conflicts from checkout -m

Conflicts:
	builtin/revert.c
2010-04-03 12:28:41 -07:00
YONETANI Tomokazu
6555b196f0 Fix _XOPEN_SOURCE problem on DragonFly
As on FreeBSD, defining _XOPEN_SOURCE to 600 on DragonFly BSD 2.4-RELEASE
or later hides symbols from programs, which leads to implicit declaration
of functions, making the return value to be assumed an int.  On architectures
where sizeof(int) < sizeof(void *), this can cause unexpected behaviors or
crashes.
This change won't affect other OSes unless they define __DragonFly__ macro,
or older versions of DragonFly BSD as the current git code doesn't rely on
the features only available with _XOPEN_SOURCE set to 600 on DragonFly.

Signed-off-by: YONETANI Tomokazu <y0netan1@dragonflybsd.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-02 21:24:30 -07:00
Peter Collingbourne
80d706afed Introduce remove_or_warn function
This patch introduces the remove_or_warn function which is a
generalised version of the {unlink,rmdir}_or_warn functions.  It takes
an additional parameter indicating the mode of the file to be removed.

The patch also modifies certain functions to use remove_or_warn
where appropriate, and adds a test case for a bug fixed by the use
of remove_or_warn.

Signed-off-by: Peter Collingbourne <peter@pcc.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-28 09:53:04 -07:00
Peter Collingbourne
d1723296af Implement the rmdir_or_warn function
This patch implements an rmdir_or_warn function (like unlink_or_warn
but for directories) that uses the generalised warning code in
warn_if_unremovable.

Signed-off-by: Peter Collingbourne <peter@pcc.me.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-28 09:53:01 -07:00
Nicolas Pitre
a9a746364b Make xmalloc and xrealloc thread-safe
By providing a hook for the routine responsible for trying to free some
memory on malloc failure, we can ensure that the  called routine is
protected by the appropriate locks when threads are in play.

The obvious offender here was pack-objects which was calling xmalloc()
within threads while release_pack_memory() is not thread safe.

Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-24 14:15:09 -07:00
Jonathan Nieder
137c6eaa88 compat: add mempcpy()
The mempcpy() function was added in glibc 2.1.  It is quite handy, so
add an implementation for cross-platform use.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-20 20:36:11 -07:00
Johannes Sixt
ebaa79f462 Make report() from usage.c public as vreportf() and use it.
There exist already a number of static functions named 'report', therefore,
the function name was changed.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-07 00:37:35 -08:00
Junio C Hamano
a0075d9e6a Merge branch 'il/maint-xmallocz'
* il/maint-xmallocz:
  Fix integer overflow in unpack_compressed_entry()
  Fix integer overflow in unpack_sha1_rest()
  Fix integer overflow in patch_delta()
  Add xmallocz()
2010-01-27 14:56:38 -08:00
Ilari Liusvaara
5bf9219d01 Add xmallocz()
Add routine for allocating NUL-terminated memory block without risking
integer overflow in addition of +1 for NUL byte.

[jc: with suggestion from Bill Lear]

Signed-off-by: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-26 12:57:53 -08:00
Ramsay Jones
aba7dea83b msvc: Add a definition of NORETURN compatible with msvc compiler
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Acked-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22 16:35:42 -08:00
Junio C Hamano
fcb2a7e4a3 Merge branch 'ap/merge-backend-opts'
* ap/merge-backend-opts:
  Document that merge strategies can now take their own options
  Extend merge-subtree tests to test -Xsubtree=dir.
  Make "subtree" part more orthogonal to the rest of merge-recursive.
  pull: Fix parsing of -X<option>
  Teach git-pull to pass -X<option> to git-merge
  git merge -X<option>
  git-merge-file --ours, --theirs

Conflicts:
	git-compat-util.h
2010-01-20 20:28:50 -08:00
Junio C Hamano
56eb8b43eb Merge branch 'jc/symbol-static'
* jc/symbol-static:
  date.c: mark file-local function static
  Replace parse_blob() with an explanatory comment
  symlinks.c: remove unused functions
  object.c: remove unused functions
  strbuf.c: remove unused function
  sha1_file.c: remove unused function
  mailmap.c: remove unused function
  utf8.c: mark file-local function static
  submodule.c: mark file-local function static
  quote.c: mark file-local function static
  remote-curl.c: mark file-local function static
  read-cache.c: mark file-local functions static
  parse-options.c: mark file-local function static
  entry.c: mark file-local function static
  http.c: mark file-local functions static
  pretty.c: mark file-local function static
  builtin-rev-list.c: mark file-local function static
  bisect.c: mark file-local function static
2010-01-20 14:37:25 -08:00
Junio C Hamano
23418ea95f date.c: mark file-local function static
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-20 14:37:17 -08:00
Avery Pennarun
8cc5b29065 git merge -X<option>
Teach "-X <option>" command line argument to "git merge" that is passed to
strategy implementations.  "ours" and "theirs" autoresolution introduced
by the previous commit can be asked to the recursive strategy.

Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-17 22:45:06 -08:00
Nguyễn Thái Ngọc Duy
eb80042c6a Add missing #include to support TIOCGWINSZ on Solaris
On Linux TIOCGWINSZ is defined somehwere in ioctl.h, which is already
included. On Solaris we also need to include termios.h. Without this
term_columns() in help.c will think TIOCGWINSZ is not supported and
always return 80 columns.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-11 19:55:33 -08:00
Jonathan Nieder
64b1cb74f8 Introduce usagef() that takes a printf-style format
Some new callers would want to use printf-like formatting, when issuing
their usage messages.  An option is to change usage() itself also be like
printf(), which would make it similar to die() and warn().

But usage() is typically fixed, as opposed to die() and warn() that gives
diagnostics depending on the situation.  Indeed, the majority of strings
given by existing callsites to usage() are fixed strings.  If we were to
make usage() take printf-style format, they all need to be changed to have
"%s" as their first argument.

So instead, introduce usagef() so that limited number of callers can use
it.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-10 12:00:21 -08:00
Erik Faye-Lund
18660bc96e add NORETURN_PTR for function pointers
Some compilers (including at least MSVC and ARM RVDS) supports
NORETURN on function declarations, but not on function pointers.

This patch makes it possible to define NORETURN for these compilers,
by splitting the NORETURN macro into two - one for function
declarations and one for function pointers.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2009-10-01 04:12:21 -04:00
Erik Faye-Lund
a4f3131c07 increase portability of NORETURN declarations
Some compilers (including at least MSVC) support NORETURN
on function declarations, but only before the function-name.

This patch makes it possible to define NORETURN to something
meaningful for those compilers.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2009-10-01 04:12:21 -04:00
Marius Storm-Olsen
435bdf8c7f Make usage of windows.h lean and mean
Centralize the include of windows.h in git-compat-util.h, turn on
WIN32_LEAN_AND_MEAN to avoid including plenty of other header files
which is not needed in Git. Also ensure we load winsock2.h first,
so we don't load the older winsock definitions at a later stage,
since they contain duplicate definitions.

When moving windows.h into git-compat-util.h, we need to protect
the definition of struct pollfd in mingw.h, since this file is used
by both MinGW and MSVC, and the latter defines this struct in
winsock2.h.

We need to keep the windows.h include in compat/win32.h, since its
shared by both MinGW and Cygwin, and we're not touching Cygwin in
this commit. The include in git-compat-util.h is protected with an
ifdef WIN32, which is not the case when compiling for Cygwin.

Signed-off-by: Marius Storm-Olsen <mstormo@gmail.com>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-18 20:00:42 -07:00
Frank Li
d75f8e6131 Add platform files for porting to MSVC
Add msvc.c and msvc.h to build git under MSVC.

Signed-off-by: Frank Li <lznuaa@gmail.com>
Signed-off-by: Marius Storm-Olsen <mstormo@gmail.com>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-18 20:00:42 -07:00
Junio C Hamano
106a36509d Merge branch 'lt/block-sha1'
* lt/block-sha1:
  remove ARM and Mozilla SHA1 implementations
  block-sha1: guard gcc extensions with __GNUC__
  make sure byte swapping is optimal for git
  block-sha1: make the size member first in the context struct
2009-08-27 17:00:35 -07:00
Brandon Casey
044239b0a1 git-compat-util.h: remove superfluous test for __sun__
This 'ifndef' macro is entered only when __sun__ is not defined.  This test
will never fail since it is located inside of the 'else' branch of an 'if'
macro which tests whether __sun__ is defined.  It has had no effect since
the merge at 436f66b7.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-19 21:04:56 -07:00
Nicolas Pitre
51ea55190b make sure byte swapping is optimal for git
We rely on ntohl() and htonl() to perform byte swapping in many places.
However, some platforms have libraries providing really poor
implementations of those which might cause significant performance
issues, especially with the block-sha1 code.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-18 14:16:37 -07:00
Pierre Habouzit
98cb6f30f7 janitor: add DIV_ROUND_UP and use it.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 21:57:41 -07:00
Pierre Habouzit
f630cfda88 refactor: use bitsizeof() instead of 8 * sizeof()
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-22 21:57:41 -07:00
Brandon Casey
9398b85994 git-compat-util.h: adjust for SGI IRIX 6.5
Don't define _XOPEN_SOURCE
Do    define _SGI_SOURCE

Defining _XOPEN_SOURCE prevents many of the common functions and macros
from being defined. _Not_ setting _XOPEN_SOURCE, and instead setting
_SGI_SOURCE, provides all of the XPG4, XPG5, BSD, POSIX functions and
declarations, _BUT_ provides a horribly broken snprintf(). SGI does have
a working snprintf(), but it is only provided when _NO_XOPEN5 evaluates
to zero, and this only happens if _XOPEN_SOURCE is defined which, as
mentioned above, prevents many other common functions and defines.

The broken snprintf will be worked around with SNPRINTF_RETURNS_BOGUS in
the Makefile in a later patch.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-10 23:50:29 -07:00
Junio C Hamano
dd787c19c4 Merge branch 'tr/die_errno'
* tr/die_errno:
  Use die_errno() instead of die() when checking syscalls
  Convert existing die(..., strerror(errno)) to die_errno()
  die_errno(): double % in strerror() output just in case
  Introduce die_errno() that appends strerror(errno) to die()
2009-07-06 09:39:46 -07:00
Thomas Rast
b875036e5a Introduce die_errno() that appends strerror(errno) to die()
There are many calls to die() that do, or should, report
strerror(errno) to indicate how the syscall they guard failed.
Introduce a small helper function for this case.

Note:

- POSIX says vsnprintf can modify errno in some unlikely cases, so we
  have to use errno early.

- We take some care to pass the original format to die_routine(), in
  case someone wants to call die_errno() with custom format
  characters.

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27 11:14:53 -07:00
Junio C Hamano
436f66b7e9 Merge branch 'bc/solaris'
* bc/solaris:
  configure: test whether -lresolv is needed
  Makefile: insert SANE_TOOL_PATH to PATH before /bin or /usr/bin
  git-compat-util.h: avoid using c99 flex array feature with Sun compiler 5.8
  Makefile: add section for SunOS 5.7
  Makefile: introduce SANE_TOOL_PATH for prepending required elements to PATH
  Makefile: define __sun__ on SunOS
  git-compat-util.h: tweak the way _XOPEN_SOURCE is set on Solaris
  On Solaris choose the OLD_ICONV iconv() declaration based on the UNIX spec
  Makefile: add NEEDS_RESOLV to optionally add -lresolv to compile arguments
  Makefile: use /usr/ucb/install on SunOS platforms rather than ginstall

Conflicts:
	Makefile
2009-06-13 12:48:34 -07:00
Brandon Casey
203ee91fd2 git-compat-util.h: avoid using c99 flex array feature with Sun compiler 5.8
The Sun c99 compiler as recent as version 5.8 Patch 121016-06 2007/08/01
produces an error when compiling diff-delta.c.  This source file #includes
the delta.h header file which pre-declares a struct which is later defined
to contain a flex array member.  The Sun c99 compiler fails to compile
diff-delta.c and gives the following error:

  "diff-delta.c", line 314: identifier redeclared: create_delta
          current : function(pointer to const struct delta_index {unsigned long memsize, pointer to const void src_buf, unsigned long src_size, unsigned int hash_mask, array[-1] of pointer to struct index_entry {..} hash}, pointer to const void, unsigned long, pointer to unsigned long, unsigned long) returning pointer to void
          previous: function(pointer to const struct delta_index {unsigned long memsize, pointer to const void src_buf, unsigned long src_size, unsigned int hash_mask, array[-1] of pointer to struct index_entry {..} hash}, pointer to const void, unsigned long, pointer to unsigned long, unsigned long) returning pointer to void : "delta.h", line 44
  c99: acomp failed for diff-delta.c

So, avoid using this c99 feature when compiling with the Sun c compilers
version 5.8 and older (the most recent version tested).

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-08 21:16:18 -07:00
Brandon Casey
4cb18a49df git-compat-util.h: tweak the way _XOPEN_SOURCE is set on Solaris
On Solaris, when _XOPEN_EXTENDED is set, its header file forces the
programs to be XPG4v2, defeating any _XOPEN_SOURCE setting to say we are
XPG5 or XPG6.  Also on Solaris, XPG6 programs must be compiled with a c99
compiler, while non XPG6 programs must be compiled with a pre-c99 compiler.

So when compiling on Solaris, always refrain from setting _XOPEN_EXTENDED,
and then set _XOPEN_SOURCE to 600 or 500 based on whether a c99 compiler
is being used or not.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06 13:21:10 -07:00
Junio C Hamano
b11cf09043 Merge branch 'da/pretty-tempname'
* da/pretty-tempname:
  diff: generate pretty filenames in prep_temp_blob()
  compat: add a basename() compatibility function
  compat: add a mkstemps() compatibility function

Conflicts:
	Makefile
2009-06-03 00:50:05 -07:00
David Aguilar
e1c0688692 compat: add a basename() compatibility function
Some systems such as Windows lack libgen.h so provide a
basename() implementation for cross-platform use.

This introduces the NO_LIBGEN_H construct to the Makefile
and autoconf scripts.

Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-31 17:57:59 -07:00
David Aguilar
0620b39b3b compat: add a mkstemps() compatibility function
mkstemps() is a BSD extension so provide an implementation
for cross-platform use.

Signed-off-by: David Aguilar <davvid@gmail.com>
Tested-by: Johannes Sixt <j6t@kdbg.org> (Windows)
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-31 17:56:44 -07:00
Junio C Hamano
30d8080ca7 Teach Solaris that _XOPEN_SOURCE=600 really menas XPG6
In git-compat-util.h, we do

    #define _XOPEN_SOURCE 600
    #define _XOPEN_SOURCE_EXTENDED 1

unless we are on BSD or SCO.

On OpenSolaris (200811), /usr/include/sys/feature_tests.h has this nice
table:

    Feature Test Macro				     Specification
    ------------------------------------------------  -------------
    _XOPEN_SOURCE                                         XPG3
    _XOPEN_SOURCE && _XOPEN_VERSION = 4                   XPG4
    _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED = 1           XPG4v2
    _XOPEN_SOURCE = 500                                   XPG5
    _XOPEN_SOURCE = 600  (or POSIX_C_SOURCE=200112L)      XPG6

Later in the same header, compilation with -c99 is made to fail if _XPG6 is
not set, like this:

    #if defined(_STDC_C99) && (defined(__XOPEN_OR_POSIX) && !defined(_XPG6))
    #error "Compiler or options invalid for pre-UNIX 03 X/Open applications \
            and pre-2001 POSIX applications"
    #elif ...

The problem is that they check things in an order that is inconvenient for
us.  When they see _XOPEN_SOURCE_EXTENDED, they declare that we are XPG4v2,
regardless of the value of _XOPEN_SOURCE.

To work around this problem, do not define _XOPEN_SOURCE_EXTENDED on
Sun's.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-22 22:52:00 -07:00
Alex Riesen
fc71db39e0 Introduce an unlink(2) wrapper which gives warning if unlink failed
This seem to be a very common pattern in the current code.

The function prints a generic removal failure message, the file name
which failed and readable errno presentation. The function preserves
errno and always returns the value unlink(2) returned, but prints
no message for ENOENT, as it was the most often filtered out in the
code calling unlink. Besides, removing a file is anyway the purpose of
calling unlink.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-29 18:37:41 -07:00
Patrick Welche
9a695fbf38 NetBSD compilation fix
Similar to other BSD variants, it needs USE_ST_TIMESPEC.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-27 09:54:24 -07:00
Johannes Sixt
34779c535c Windows: Skip fstat/lstat optimization in write_entry()
Commit e4c72923 (write_entry(): use fstat() instead of lstat() when file
is open, 2009-02-09) introduced an optimization of write_entry().
Unfortunately, we cannot take advantage of this optimization on Windows
because there is no guarantee that the time stamps are updated before the
file is closed:

  "The only guarantee about a file timestamp is that the file time is
   correctly reflected when the handle that makes the change is closed."

(http://msdn.microsoft.com/en-us/library/ms724290(VS.85).aspx)

The failure of this optimization on Windows can be observed most easily by
running a 'git checkout' that has to update several large files. In this
case, 'git checkout' will report modified files, but infact only the
timestamps were incorrectly recorded in the index, as can be verified by a
subsequent 'git diff', which shows no change.

Dmitry Potapov reports the same fix needs on Cygwin; this commit contains
his updates for that.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-20 12:14:02 -07:00
Janos Laube
b130a72b27 MinGW: implement mmap
Add USE_WIN32_MMAP which triggers the use of windows' native
file memory mapping functionality in git_mmap()/git_munmap() functions.

As git functions currently use mmap with MAP_PRIVATE set only, this
implementation supports only that mode for now.

On Windows, offsets for memory mapped files need to match the allocation
granularity. Take this into account when calculating the packed git-
windowsize and file offsets. At the moment, the only function which makes
use of offsets in conjunction with mmap is use_pack() in sha1-file.c.

Git fast-import's code path tries to map a portion of the temporary
packfile that exceeds the current filesize, i.e. offset+length is
greater than the filesize. The NO_MMAP code worked with that since pread()
just reads the file content until EOF and returns gracefully, while
MapViewOfFile() aborts the mapping and returns 'Access Denied'.
Working around that by determining the filesize and adjusting the length
parameter.

Signed-off-by: Janos Laube <janos.dev@gmail.com>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-18 19:23:04 -07:00
Junio C Hamano
a9bfe81309 Merge branch 'kb/checkout-optim'
* kb/checkout-optim:
  Revert "lstat_cache(): print a warning if doing ping-pong between cache types"
  checkout bugfix: use stat.mtime instead of stat.ctime in two places
  Makefile: Set compiler switch for USE_NSEC
  Create USE_ST_TIMESPEC and turn it on for Darwin
  Not all systems use st_[cm]tim field for ns resolution file timestamp
  Record ns-timestamps if possible, but do not use it without USE_NSEC
  write_index(): update index_state->timestamp after flushing to disk
  verify_uptodate(): add ce_uptodate(ce) test
  make USE_NSEC work as expected
  fix compile error when USE_NSEC is defined
  check_updates(): effective removal of cache entries marked CE_REMOVE
  lstat_cache(): print a warning if doing ping-pong between cache types
  show_patch_diff(): remove a call to fstat()
  write_entry(): use fstat() instead of lstat() when file is open
  write_entry(): cleanup of some duplicated code
  create_directories(): remove some memcpy() and strchr() calls
  unlink_entry(): introduce schedule_dir_for_removal()
  lstat_cache(): swap func(length, string) into func(string, length)
  lstat_cache(): generalise longest_match_lstat_cache()
  lstat_cache(): small cleanup and optimisation
2009-03-17 18:54:31 -07:00
Brian Gernhardt
c567383b1e Create USE_ST_TIMESPEC and turn it on for Darwin
Not all OSes use st_ctim and st_mtim in their struct stat.  In
particular, it appears that OS X uses st_*timespec instead.  So add a
Makefile variable and #define called USE_ST_TIMESPEC to switch the
USE_NSEC defines to use st_*timespec.

This also turns it on by default for OS X (Darwin) machines.  Likely
this is a sane default for other BSD kernels as well, but I don't have
any to test that assumption on.

Signed-off-by: Brian Gernhardt <benji@silverinsanity.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-08 14:04:41 -07:00
Kjetil Barvik
c06ff4908b Record ns-timestamps if possible, but do not use it without USE_NSEC
Traditionally, the lack of USE_NSEC meant "do not record nor use the
nanosecond resolution part of the file timestamps".  To avoid problems on
filesystems that lose the ns part when the metadata is flushed to the disk
and then later read back in, disabling USE_NSEC has been a good idea in
general.

If you are on a filesystem without such an issue, it does not hurt to read
and store them in the cached stat data in the index entries even if your
git is compiled without USE_NSEC.  The index left with such a version of
git can be read by git compiled with USE_NSEC and it can make use of the
nanosecond part to optimize the check to see if the path on the filesystem
hsa been modified since we last looked at.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07 20:25:16 -08:00
René Scharfe
c2e9364a06 cleanup: add isascii()
Add a standard definition of isascii() and use it to replace an open
coded high-bit test in pretty.c.  While we're there, write the ESC
char as the more commonly used '\033' instead of as 0x1b to enhance
its grepability.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07 11:22:42 -08:00
Junio C Hamano
bb0cebd7d0 Merge branch 'jc/maint-1.6.0-pack-directory'
* jc/maint-1.6.0-pack-directory:
  Make sure objects/pack exists before creating a new pack
2009-02-25 14:50:05 -08:00
Junio C Hamano
6e180cdcec Make sure objects/pack exists before creating a new pack
In a repository created with git older than f49fb35 (git-init-db: create
"pack" subdirectory under objects, 2005-06-27), objects/pack/ directory is
not created upon initialization.  It was Ok because subdirectories are
created as needed inside directories init-db creates, and back then,
packfiles were recent invention.

After the said commit, new codepaths started relying on the presense of
objects/pack/ directory in the repository.  This was exacerbated with
8b4eb6b (Do not perform cross-directory renames when creating packs,
2008-09-22) that moved the location temporary pack files are created from
objects/ directory to objects/pack/ directory, because moving temporary to
the final location was done carefully with lazy leading directory creation.

Many packfile related operations in such an old repository can fail
mysteriously because of this.

This commit introduces two helper functions to make things work better.

 - odb_mkstemp() is a specialized version of mkstemp() to refactor the
   code and teach it to create leading directories as needed;

 - odb_pack_keep() refactors the code to create a ".keep" file while
   create leading directories as needed.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-25 14:39:42 -08:00
René Scharfe
f9b7cce61c Add is_regex_special()
Add is_regex_special(), a character class macro for chars that have a
special meaning in regular expressions.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-17 18:30:41 -08:00
René Scharfe
8cc3299262 Change NUL char handling of isspecial()
Replace isspecial() by the new macro is_glob_special(), which is more,
well, specialized.  The former included the NUL char in its character
class, while the letter only included characters that are special to
file name globbing.

The new name contains underscores because they enhance readability
considerably now that it's made up of three words.  Renaming the
function is necessary to document its changed scope.

The call sites of isspecial() are updated to check explicitly for NUL.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-17 18:30:37 -08:00
Dmitry Potapov
adbc0b6b6e cygwin: Use native Win32 API for stat
lstat/stat functions in Cygwin are very slow, because they try to emulate
some *nix things that Git does not actually need. This patch adds Win32
specific implementation of these functions for Cygwin.

This implementation handles most situation directly but in some rare cases
it falls back on the implementation provided for Cygwin. This is necessary
for two reasons:

- Cygwin has its own file hierarchy, so absolute paths used in Cygwin is
  not suitable to be used Win32 API. cygwin_conv_to_win32_path can not be
  used because it automatically dereference Cygwin symbol links, also it
  causes extra syscall. Fortunately Git rarely use absolute paths, so we
  always use Cygwin implementation for absolute paths.

- Support of symbol links. Cygwin stores symbol links as ordinary using
  one of two possible formats. Therefore, the fast implementation falls
  back to Cygwin functions if it detects potential use of symbol links.

The speed of this implementation should be the same as mingw_lstat for
common cases, but it is considerable slower when the specified file name
does not exist.

Despite all efforts to make the fast implementation as robust as possible,
it may not work well for some very rare situations. I am aware only one
situation: use Cygwin mount to bind unrelated paths inside repository
together.  Therefore, the core.ignoreCygwinFSTricks configuration option is
provided, which controls whether native or Cygwin version of stat is used.

Signed-off-by: Dmitry Potapov <dpotapov@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-09-30 14:30:06 -07:00
Nanako Shiraishi
07ad5a157d usage.c: remove unused functions
This removes three functions that are not used anywhere.

Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com>
Acked-by: Lars Hjemli <hjemli@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-09-29 07:30:16 -07:00
Brandon Casey
63e8aea74e dir.c: Avoid c99 array initialization
The following syntax:

        char foo[] = {
                [0] = 1,
                [7] = 2,
                [15] = 3
        };

is a c99 construct which some compilers do not support even though they
support other c99 constructs. This construct can be avoided by folding
these 'special' test cases into the sane_ctype array and making use of
the related infrastructure.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-28 21:49:51 -07:00
Junio C Hamano
c8a4cbc239 Merge branch 'rs/imap'
* rs/imap:
  Documentation: Improve documentation for git-imap-send(1)
  imap-send.c: more style fixes
  imap-send.c: style fixes
  git-imap-send: Support SSL
  git-imap-send: Allow the program to be run from subdirectories of a git tree
2008-08-19 21:42:46 -07:00
Junio C Hamano
fdb2a2a600 compat: introduce on_disk_bytes()
Some platforms do not have st_blocks member in "struct stat"; mingw
already emulates it by rounding it up to closest 512-byte blocks (even
though it could overcount when a file has holes).

The reason to use the member is only to figure out how many kilobytes the
files occupy on-disk, so give a helper function in git-compat-util.h to
compute this value.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-08-18 22:37:55 -07:00
Robert Shearman
684ec6c63c git-imap-send: Support SSL
Allow SSL to be used when a imaps:// URL is used for the host name.

Also, automatically use TLS when not using imaps:// by using the IMAP
STARTTLS command, if the server supports it.

Tested with Courier and Gimap IMAP servers.

Signed-off-by: Robert Shearman <robertshearman@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-25 21:51:30 -07:00
Junio C Hamano
fcab40a389 Merge branch 'mv/merge-in-c'
* mv/merge-in-c:
  reduce_heads(): protect from duplicate input
  reduce_heads(): thinkofix
  Add a new test for git-merge-resolve
  t6021: add a new test for git-merge-resolve
  Teach merge.log to "git-merge" again
  Build in merge
  Fix t7601-merge-pull-config.sh on AIX
  git-commit-tree: make it usable from other builtins
  Add new test case to ensure git-merge prepends the custom merge message
  Add new test case to ensure git-merge reduces octopus parents when possible
  Introduce reduce_heads()
  Introduce get_merge_bases_many()
  Add new test to ensure git-merge handles more than 25 refs.
  Introduce get_octopus_merge_bases() in commit.c
  git-fmt-merge-msg: make it usable from other builtins
  Move read_cache_unmerged() to read-cache.c
  Add new test to ensure git-merge handles pull.twohead and pull.octopus
  Move parse-options's skip_prefix() to git-compat-util.h
  Move commit_list_count() to commit.c
  Move split_cmdline() to alias.c

Conflicts:
	Makefile
	parse-options.c
2008-07-15 19:09:46 -07:00
Johannes Sixt
607bb3ff88 Provide fallback definitions of PRIu32 and PRIx32
Since 6e1c23442 we make use of these C99 constructs, but this commit did
not provide fallbacks for non-C99 systems.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-09 15:10:03 -07:00
Junio C Hamano
bb1ab2db08 Merge branch 'j6t/mingw'
* j6t/mingw: (38 commits)
  compat/pread.c: Add a forward declaration to fix a warning
  Windows: Fix ntohl() related warnings about printf formatting
  Windows: TMP and TEMP environment variables specify a temporary directory.
  Windows: Make 'git help -a' work.
  Windows: Work around an oddity when a pipe with no reader is written to.
  Windows: Make the pager work.
  When installing, be prepared that template_dir may be relative.
  Windows: Use a relative default template_dir and ETC_GITCONFIG
  Windows: Compute the fallback for exec_path from the program invocation.
  Turn builtin_exec_path into a function.
  Windows: Use a customized struct stat that also has the st_blocks member.
  Windows: Add a custom implementation for utime().
  Windows: Add a new lstat and fstat implementation based on Win32 API.
  Windows: Implement a custom spawnve().
  Windows: Implement wrappers for gethostbyname(), socket(), and connect().
  Windows: Work around incompatible sort and find.
  Windows: Implement asynchronous functions as threads.
  Windows: Disambiguate DOS style paths from SSH URLs.
  Windows: A rudimentary poll() emulation.
  Windows: Implement start_command().
  ...
2008-07-02 21:57:52 -07:00
Miklos Vajna
fbca583732 Move parse-options's skip_prefix() to git-compat-util.h
builtin-remote.c and parse-options.c both have a skip_prefix() function,
for the same purpose. Move parse-options's one to git-compat-util.h and
let builtin-remote use it as well.

Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-30 22:45:50 -07:00
Steffen Prohaska
14086b0a13 compat/pread.c: Add a forward declaration to fix a warning
read_in_full()'s is used in compat/pread.c.  read_in_full() is
declared in cache.h. But we can't include cache.h because too
many macros are defined there.  Using read_in_full() without
including cache.h is dangerous because we wouldn't recognize if
its prototyp changed.  gcc issues a warning about that.

This commit adds a forward declaration to git-compat-util.h.
git-compat-util.h is included by compat/pread.c _and_ cache.h.
Hence, changes in cache.h would be detected.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-26 08:47:17 +02:00
Johannes Sixt
bb5799d6ef Make my_mktime() public and rename it to tm_to_time_t()
We will use it from the MinGW port's gettimeofday() substitution.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23 13:40:29 +02:00
Johannes Sixt
23326d14ed Windows: Strip ".exe" from the program name.
Before we can successfully parse a builtin command from the program name
we must strip off unneeded parts, that is, the file extension.

Furthermore, we must take Windows style path names into account when we
parse the program name.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23 13:34:55 +02:00
Johannes Sixt
25fe217b86 Windows: Treat Windows style path names.
GIT's guts work with a forward slash as a path separators. We do not change
that. Rather we make sure that only "normalized" paths enter the depths
of the machinery.

We have to translate backslashes to forward slashes in the prefix and in
command line arguments. Fortunately, all of them are passed through
functions in setup.c.

A macro has_dos_drive_path() is defined that checks whether a path begins
with a drive letter+colon combination. This predicate is always false on
Unix. Another macro is_dir_sep() abstracts that a backslash is also a
directory separator on Windows.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23 13:30:22 +02:00