| Commit message (Collapse) | Author | Age | Files | Lines |
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Teach the index to optionally remember already seen untracked files
to speed up "git status" in a working tree with tons of cruft.
* nd/untracked-cache: (24 commits)
git-status.txt: advertisement for untracked cache
untracked cache: guard and disable on system changes
mingw32: add uname()
t7063: tests for untracked cache
update-index: test the system before enabling untracked cache
update-index: manually enable or disable untracked cache
status: enable untracked cache
untracked-cache: temporarily disable with $GIT_DISABLE_UNTRACKED_CACHE
untracked cache: mark index dirty if untracked cache is updated
untracked cache: print stats with $GIT_TRACE_UNTRACKED_STATS
untracked cache: avoid racy timestamps
read-cache.c: split racy stat test to a separate function
untracked cache: invalidate at index addition or removal
untracked cache: load from UNTR index extension
untracked cache: save to an index extension
ewah: add convenient wrapper ewah_serialize_strbuf()
untracked cache: don't open non-existent .gitignore
untracked cache: mark what dirs should be recursed/saved
untracked cache: record/validate dir mtime and reuse cached output
untracked cache: make a wrapper around {open,read,close}dir()
...
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If the user enables untracked cache, then
- move worktree to an unsupported filesystem
- or simply upgrade OS
- or move the whole (portable) disk from one machine to another
- or access a shared fs from another machine
there's no guarantee that untracked cache can still function properly.
Record the worktree location and OS footprint in the cache. If it
changes, err on the safe side and disable the cache. The user can
'update-index --untracked-cache' again to make sure all conditions are
met.
This adds a new requirement that setup_git_directory* must be called
before read_cache() because we need worktree location by then, or the
cache is dropped.
This change does not cover all bases, you can fool it if you try
hard. The point is to stop accidents.
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: brian m. carlson <sandals@crustytoothpaste.net>
Helped-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Catch a programmer mistake to feed a pointer not an array to
ARRAY_SIZE() macro, by using a couple of GCC extensions.
* ep/do-not-feed-a-pointer-to-array-size:
git-compat-util.h: implement a different ARRAY_SIZE macro for for safely deriving the size of array
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deriving the size of array
To get number of elements in an array git use the ARRAY_SIZE macro
defined as:
#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
The problem with it is a possibility of mistakenly passing to it a
pointer instead an array. The ARRAY_SIZE macro as conventionally
defined does not provide good type-safety and the open-coded
approach is more fragile, more verbose and provides no improvement in
type-safety.
Use instead a different but compatible ARRAY_SIZE() macro,
which will also break compile if you try to
use it on a pointer. This implemention revert to the original code
if the compiler doesn't know the typeof and __builtin_types_compatible_p
GCC extensions.
This can ensure our code is robust to changes, without
needing a gratuitous macro or constant. A similar
ARRAY_SIZE implementation also exists in the linux kernel.
Credits to Rusty Russell and his ccan library.
Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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POSIX.1-2001 specifies some functions for optimizing the
locking out of tight getc() loops. Not all systems are
POSIX, though, and even not all POSIX systems are required
to implement these functions. We can check for the
feature-test macro to see if they are available, and if not,
provide a noop implementation.
There's no Makefile knob here, because we should just detect
this automatically. If there are very bizarre systems, we
may need to add one, but it's not clear yet in which
direction:
1. If a system defines _POSIX_THREAD_SAFE_FUNCTIONS but
these functions are missing or broken, we would want a
knob to manually turn them off.
2. If a system has these functions but does not define
_POSIX_THREAD_SAFE_FUNCTIONS, we would want a knob to
manually turn them on.
We can add such a knob when we find a real-world system that
matches this.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We now detect number of CPUs on older BSD-derived systems.
* km/bsd-sysctl:
thread-utils.c: detect CPU count on older BSD-like systems
configure: support HAVE_BSD_SYSCTL option
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On BSD-compatible systems some information such as the number
of available CPUs may only be available via the sysctl function.
Add support for a HAVE_BSD_SYSCTL option complete with autoconf
support and include the sys/syctl.h header when the option is
enabled to make the sysctl function available.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Portability fixes and workarounds for shell scripts have been added
to help BSD-derived systems.
* km/bsd-shells:
t5528: do not fail with FreeBSD shell
help.c: use SHELL_PATH instead of hard-coded "/bin/sh"
git-compat-util.h: move SHELL_PATH default into header
git-instaweb: use @SHELL_PATH@ instead of /bin/sh
git-instaweb: allow running in a working tree subdirectory
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If SHELL_PATH is not defined we use "/bin/sh". However,
run-command.c is not the only file that needs to use
the default value so move it into a common header.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code cleanups.
* rj/no-xopen-source-for-cygwin:
git-compat-util.h: remove redundant code
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An earlier workaround to squelch unhelpful deprecation warnings
from the complier on Mac OSX unnecessarily set minimum required
version of the OS, which the user might want to raise (or lower)
for other reasons.
* es/squelch-openssl-warnings-on-macosx:
git-compat-util: do not step on MAC_OS_X_VERSION_MIN_REQUIRED
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"git blame HEAD -- missing" failed to correctly say "HEAD" when it
tried to say "No such path 'missing' in HEAD".
* jk/blame-commit-label:
blame.c: fix garbled error message
use xstrdup_or_null to replace ternary conditionals
builtin/commit.c: use xstrdup_or_null instead of envdup
builtin/apply.c: use xstrdup_or_null instead of null_strdup
git-compat-util: add xstrdup_or_null helper
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The borrowed code in kwset API did not follow our usual convention
to use "unsigned char" to store values that range from 0-255.
* bw/kwset-use-unsigned:
kwset: use unsigned char to store values with high-bit set
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Sun Studio on Solaris issues warnings about improper initialization
values being used when defining tolower_trans_tbl[] in ctype.c. The
array wants to store values with high-bit set and treat them as
values between 128 to 255. Unlike the rest of the Git codebase
where we explicitly specify 'unsigned char' for such variables and
arrays, however, kwset code we borrowed from elsewhere uses 'char'
for this and other variables.
Fix the declarations to explicitly use 'unsigned char' where
necessary to bring it in line with the rest of the Git.
Signed-off-by: Ben Walton <bdwalton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code cleanups.
* rj/no-xopen-source-for-cygwin:
git-compat-util.h: remove redundant code
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Since commit 3a0a3a89 ("git-compat-util.h: don't define _XOPEN_SOURCE
on cygwin", 23-11-2014) removed the definition of _XOPEN_SOURCE on
cygwin, the code within a pre-processor conditional further down the
file became redundant. Remove the redundant code.
This effectively reverts commit 41b20017 ("Fix an "implicit function
definition" warning", 03-03-2007).
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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An earlier workaround to squelch unhelpful deprecation warnings
from the complier on Mac OSX unnecessarily set minimum required
version of the OS, which the user might want to raise (or lower)
for other reasons.
* es/squelch-openssl-warnings-on-macosx:
git-compat-util: do not step on MAC_OS_X_VERSION_MIN_REQUIRED
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MAC_OS_X_VERSION_MIN_REQUIRED may be defined by the builder to a
specific version in order to produce compatible binaries for a
particular system. Blindly defining it to MAC_OS_X_VERSION_10_6
is bad.
Additionally MAC_OS_X_VERSION_10_6 will not be defined on older
systems and should AvailabilityMacros.h be included on such as
system an error will result. However, using the explicit value
of 1060 (which is what MAC_OS_X_VERSION_10_6 is defined to) does
not solve the problem.
The changes that introduced stepping on MAC_OS_X_VERSION_MIN were
made in b195aa00 (git-compat-util: suppress unavoidable
Apple-specific deprecation warnings) to avoid deprecation
warnings.
Instead of blindly setting MAC_OS_X_VERSION_MIN to 1060 change
the definition of DEPRECATED_ATTRIBUTE to empty to avoid the
warnings. This preserves any MAC_OS_X_VERSION_MIN_REQUIRED
setting while avoiding the warnings as intended by b195aa00.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* km/gettext-n:
gettext.h: add parentheses around N_ expansion if supported
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The gettext N_ macro is used to mark strings for translation
without actually translating them. At runtime the string is
expected to be passed to the gettext API for translation.
If two N_ macro invocations appear next to each other with only
whitespace (or nothing at all) between them, the two separate
strings will be marked for translation, but the preprocessor
will then silently combine the strings into one and at runtime
the string passed to gettext will not match the strings that
were translated so no translation will actually occur.
Avoid this by adding parentheses around the expansion of the
N_ macro so that instead of ending up with two adjacent strings
that are then combined by the preprocessor, two adjacent strings
surrounded by parentheses result instead which causes a compile
error so the mistake can be quickly found and corrected.
However, since these string literals are typically assigned to
static variables and not all compilers support parenthesized
string literal assignments, allow this to be controlled by the
Makefile with the default only enabled when the compiler is
known to support the syntax.
For now only __GNUC__ enables this by default which covers both
gcc and clang which should result in early detection of any
adjacent N_ macros.
Although the necessary tests make the affected files a bit less
elegant, the benefit of avoiding propagation of a translation-
marking error to all the translation teams thus creating extra
work for them when the error is eventually detected and fixed
would seem to outweigh the minor inelegance the additional
configuration tests introduce.
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git blame HEAD -- missing" failed to correctly say "HEAD" when it
tried to say "No such path 'missing' in HEAD".
* jk/blame-commit-label:
blame.c: fix garbled error message
use xstrdup_or_null to replace ternary conditionals
builtin/commit.c: use xstrdup_or_null instead of envdup
builtin/apply.c: use xstrdup_or_null instead of null_strdup
git-compat-util: add xstrdup_or_null helper
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It's a common idiom to duplicate a string if it is non-NULL,
or pass a literal NULL through. This is already a one-liner
in C, but you do have to repeat the name of the string
twice. So if there's a function call, you must write:
const char *x = some_fun(...);
return x ? xstrdup(x) : NULL;
instead of (with this patch) just:
return xstrdup_or_null(some_fun(...));
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Build update for older RHEL.
* rh/autoconf-rhel3:
configure.ac: check for HMAC_CTX_cleanup
configure.ac: check for clock_gettime and CLOCK_MONOTONIC
configure.ac: check 'tv_nsec' field in 'struct stat'
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OpenSSL version 0.9.6b and before defined the function HMAC_cleanup.
Newer versions define HMAC_CTX_cleanup. Check for HMAC_CTX_cleanup and
fall back to HMAC_cleanup when the newer function is missing.
Signed-off-by: Reuben Hawkins <reubenhwk@gmail.com>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Squelch useless compiler warnings on Mac OS X.
* es/squelch-openssl-warnings-on-macosx:
git-compat-util: suppress unavoidable Apple-specific deprecation warnings
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With the release of Mac OS X 10.7 in July 2011, Apple deprecated all
openssl.h functionality due to OpenSSL ABI (application binary
interface) instability, resulting in an explosion of compilation
warnings about deprecated SSL, SHA1, and X509 functions (among others).
61067954ce (cache.h: eliminate SHA-1 deprecation warnings on Mac OS X;
2013-05-19) and be4c828b76 (imap-send: eliminate HMAC deprecation
warnings on Mac OS X; 2013-05-19) attempted to ameliorate the situation
by taking advantage of drop-in replacement functionality provided by
Apple's (ABI-stable) CommonCrypto facility, however CommonCrypto
supplies only a subset of deprecated OpenSSL functionality, thus a host
of warnings remain.
Despite this shortcoming, it was hoped that Apple would ultimately
provide CommonCrypto replacements for all deprecated OpenSSL
functionality, and that the effort started by 61067954ce and be4c828b76
would be continued and eventually eliminate all deprecation warnings.
However, now 3.5 years later, and with Mac OS X at 10.10, the hoped-for
CommonCrypto replacements have not yet materialized, nor is there any
indication that they will be forthcoming.
These Apple-specific warnings are pure noise: they don't tell us
anything useful and we have no control over them, nor is Apple likely to
provide replacements any time soon. Such noise may obscure other
legitimate warnings, therefore silence them.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Long overdue departure from the assumption that S_IFMT is shared by
everybody made in 2005.
* dm/compat-s-ifmt-for-zos:
compat: convert modes to use portable file type values
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This adds simple wrapper functions around calls to stat(), fstat(),
and lstat() that translate the operating system's native file type
bits to those used by most operating systems. It also rewrites the
S_IF* macros to the common values, so all file type processing is
performed using the translated modes. This makes projects portable
across operating systems that use different file type definitions.
Only the file type bits may be affected by these compatibility
functions; the file permission bits are assumed to be 07777 and are
passed through unchanged.
Signed-off-by: David Michael <fedora.dm0@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Avoid compilation warnings on recent gcc toolchain on Cygwin.
* rj/no-xopen-source-for-cygwin:
git-compat-util.h: don't define _XOPEN_SOURCE on cygwin
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A recent update to the gcc compiler (v4.8.3-5 x86_64) on 64-bit
cygwin leads to several new warnings about the implicit declaration
of the memmem(), strlcpy() and strcasestr() functions. For example:
CC archive.o
archive.c: In function 'format_subst':
archive.c:44:3: warning: implicit declaration of function 'memmem' \
[-Wimplicit-function-declaration]
b = memmem(src, len, "$Format:", 8);
^
archive.c:44:5: warning: assignment makes pointer from integer \
without a cast [enabled by default]
b = memmem(src, len, "$Format:", 8);
^
This is because <string.h> on Cygwin used to always declare the
above functions, but a recent version of it no longer make them
visible when _XOPEN_SOURCE is set (even if _GNU_SOURCE and
_BSD_SOURCE is set).
In order to suppress the warnings, don't define the _XOPEN_SOURCE
macro on cygwin.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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z/OS port
* dm/port2zos:
compat/bswap.h: detect endianness from XL C compiler macros
Makefile: reorder linker flags in the git executable rule
git-compat-util.h: support variadic macros with the XL C compiler
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When the XL C compiler is run with an appropriate language level or
suboption, it defines a feature test macro to indicate support for
variadic macros by defining __C99_MACRO_WITH_VA_ARGS C preprocessor
macro.
This was tested on z/OS, but it should also work on AIX according
to IBM documentation.
Signed-off-by: David Michael <fedora.dm0@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Tighten the logic to decide that an unreachable cruft is
sufficiently old by covering corner cases such as an ancient object
becoming reachable and then going unreachable again, in which case
its retention period should be prolonged.
* jk/prune-mtime: (28 commits)
drop add_object_array_with_mode
revision: remove definition of unused 'add_object' function
pack-objects: double-check options before discarding objects
repack: pack objects mentioned by the index
pack-objects: use argv_array
reachable: use revision machinery's --indexed-objects code
rev-list: add --indexed-objects option
rev-list: document --reflog option
t5516: test pushing a tag of an otherwise unreferenced blob
traverse_commit_list: support pending blobs/trees with paths
make add_object_array_with_context interface more sane
write_sha1_file: freshen existing objects
pack-objects: match prune logic for discarding objects
pack-objects: refactor unpack-unreachable expiration check
prune: keep objects reachable from recent objects
sha1_file: add for_each iterators for loose and packed objects
count-objects: use for_each_loose_file_in_objdir
count-objects: do not use xsize_t when counting object size
prune-packed: use for_each_loose_file_in_objdir
reachable: mark index blobs as SEEN
...
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Otherwise, callers must do so or risk triggering warnings
-Wchar-subscript (and rightfully so; a signed char might
cause us to use a bogus negative index into the
hexval_table).
While we are dropping the now-unnecessary casts from the
caller in urlmatch.c, we can get rid of similar casts in
actually parsing the hex by using the hexval() helper, which
implicitly casts to unsigned (but note that we cannot
implement isxdigit in terms of hexval(), as it also casts
its return value to unsigned).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Allow us build with NO_PTHREADS=NoThanks compilation option.
* eb/no-pthreads:
Handle atexit list internaly for unthreaded builds
pack-objects: set number of threads before checking and warning
index-pack: fix compilation with NO_PTHREADS
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Wrap atexit()s calls on unthreaded builds to handle callback list
internally.
This is needed because on unthreaded builds, asyncs inherits parent's
atexit() list, that gets run as soon as the async exit()s (and again at
the end of async's parent process). That led to remove temporary files
too early.
Also remove a by-atexit-callback guard against this kind of issue in
clone.c, as this patch makes it redundant.
Fixes test 5537 (temporary shallow file vanished before unpack-objects
could open it)
BTW remove an unused variable in shallow.c.
Helped-by: Duy Nguyen <pclouds@gmail.com>
Helped-by: Andreas Schwab <schwab@linux-m68k.org>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Etienne Buira <etienne.buira@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This behaves like unlink_or_warn except that on failure it writes the message
to its 'err' argument, which the caller can display in an appropriate way or
ignore.
Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Simplify the function warn_if_unremovable slightly. Additionally, change
behaviour slightly. If we failed to remove the object because the object
does not exist, we can still return success back to the caller since none of
the callers depend on "fail if the file did not exist".
Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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setitmer(2) and related API elements can be configured from
Makefile but autoconf did not know about it.
* jt/itimer-autoconf:
autoconf: check for setitimer()
autoconf: check for struct itimerval
git-compat-util.h: add missing semicolon after struct itimerval
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This hasn't been a problem in practice as almost all systems have the
setitimer() API (or it is provided by git in the case of mingw). This code
wasn't used in any default circumstances, as the build system never sets
NO_STRUCT_ITIMERVAL - this breakage only occured if the user asked for it.
We repair this case so we can rely on it in the following commits.
Signed-off-by: Jonas 'Sortie' Termansen <sortie@maxsi.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code cleanup.
* rs/realloc-array:
use REALLOC_ARRAY for changing the allocation size of arrays
add macro REALLOC_ARRAY
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The macro ALLOC_GROW manages several aspects of dynamic memory
allocations for arrays: It performs overprovisioning in order to avoid
reallocations in future calls, updates the allocation size variable,
multiplies the item size and thus allows users to simply specify the
item count, performs the reallocation and updates the array pointer.
Sometimes this is too much. Add the macro REALLOC_ARRAY, which only
takes care of the latter three points and allows users to specfiy the
number of items the array can store. It can increase and also decrease
the size. Using the macro avoid duplicating the variable name and
takes care of the item sizes automatically.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* ss/compat-default-source-for-newer-gnu:
compat-util: add _DEFAULT_SOURCE define
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glibc has deprecated the use of _BSD_SOURCE define
warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
To make it easier to maintain a cross platform source code, that
warning can be suppressed by _DEFAULT_SOURCE.
Define both _BSD_SOURCE and _DEFAULT_SOURCE to clean-up the build.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach a few codepaths to punt (instead of dying) when large blobs
that would not fit in core are involved in the operation.
* nd/large-blobs:
diff: shortcut for diff'ing two binary SHA-1 objects
diff --stat: mark any file larger than core.bigfilethreshold binary
diff.c: allow to pass more flags to diff_populate_filespec
sha1_file.c: do not die failing to malloc in unpack_compressed_entry
wrapper.c: introduce gentle xmallocz that does not die()
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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* rs/inline-compat-path-macros:
turn path macros into inline function
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Use static inline functions instead of macros for has_dos_drive_prefix,
offset_1st_component, is_dir_sep and find_last_dir_sep in order to let
the compiler do type checking.
The definitions of offset_1st_component and is_dir_sep are switched
around because the former uses the latter.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Reduce the use of fixed sized buffer passed to getcwd() calls
by introducing xgetcwd() helper.
* rs/strbuf-getcwd:
use strbuf_add_absolute_path() to add absolute paths
abspath: convert absolute_path() to strbuf
use xgetcwd() to set $GIT_DIR
use xgetcwd() to get the current directory or die
wrapper: add xgetcwd()
abspath: convert real_path_internal() to strbuf
abspath: use strbuf_getcwd() to remember original working directory
setup: convert setup_git_directory_gently_1 et al. to strbuf
unix-sockets: use strbuf_getcwd()
strbuf: add strbuf_getcwd()
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Add the helper function xgetcwd(), which returns the current directory
or dies. The returned string has to be free()d after use.
Helped-by: Duy Nguyen <pclouds@gmail.com>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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