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2016-02-03Merge branch 'js/dirname-basename'Libravatar Junio C Hamano1-0/+10
dirname() emulation has been added, as Msys2 lacks it. * js/dirname-basename: mingw: avoid linking to the C library's isalpha() t0060: loosen overly strict expectations t0060: verify that basename() and dirname() work as expected compat/basename.c: provide a dirname() compatibility function compat/basename: make basename() conform to POSIX Refactor skipping DOS drive prefixes
2016-01-20Merge branch 'js/fopen-harder'Libravatar Junio C Hamano1-0/+1
Some codepaths used fopen(3) when opening a fixed path in $GIT_DIR (e.g. COMMIT_EDITMSG) that is meant to be left after the command is done. This however did not work well if the repository is set to be shared with core.sharedRepository and the umask of the previous user is tighter. They have been made to work better by calling unlink(2) and retrying after fopen(3) fails with EPERM. * js/fopen-harder: Handle more file writes correctly in shared repos commit: allow editing the commit message even in shared repos
2016-01-12compat/basename.c: provide a dirname() compatibility functionLibravatar Johannes Schindelin1-0/+2
When there is no `libgen.h` to our disposal, we miss the `dirname()` function. Earlier we added basename() compatibility function for the same reason at e1c06886 (compat: add a basename() compatibility function, 2009-05-31). So far, we only had one user of that function: credential-cache--daemon (which was only compiled when Unix sockets are available, anyway). But now we also have `builtin/am.c` as user, so we need it. Since `dirname()` is a sibling of `basename()`, we simply put our very own `gitdirname()` implementation next to `gitbasename()` and use it if `NO_LIBGEN_H` has been set. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-12Refactor skipping DOS drive prefixesLibravatar Johannes Schindelin1-0/+8
Junio noticed that there is an implicit assumption in pretty much all the code calling has_dos_drive_prefix(): it forces all of its callsites to hardcode the knowledge that the DOS drive prefix is always two bytes long. While this assumption is pretty safe, we can still make the code more readable and less error-prone by introducing a function that skips the DOS drive prefix safely. While at it, we change the has_dos_drive_prefix() return value: it now returns the number of bytes to be skipped if there is a DOS drive prefix. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-07commit: allow editing the commit message even in shared reposLibravatar Johannes Schindelin1-0/+1
It was pointed out by Yaroslav Halchenko that the file containing the commit message is writable only by the owner, which means that we have to rewrite it from scratch in a shared repository. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-12-21Merge branch 'jk/ident-loosen-getpwuid'Libravatar Junio C Hamano1-3/+0
When getpwuid() on the system returned NULL (e.g. the user is not in the /etc/passwd file or other uid-to-name mappings), the codepath to find who the user is to record it in the reflog barfed and died. Loosen the check in this codepath, which already accepts questionable ident string (e.g. host part of the e-mail address is obviously bogus), and in general when we operate fmt_ident() function in non-strict mode. * jk/ident-loosen-getpwuid: ident: loosen getpwuid error in non-strict mode ident: keep a flag for bogus default_email ident: make xgetpwuid_self() a static local helper
2015-12-10ident: make xgetpwuid_self() a static local helperLibravatar Jeff King1-3/+0
This function is defined in wrapper.c, but nobody besides ident.c uses it. And nobody is likely to in the future, either, as anything that cares about the user's name should be going through the ident code. Moving it here is a cleanup of the global namespace, but it will also enable further cleanups inside ident.c. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-11-05Merge branch 'js/misc-fixes' into maintLibravatar Junio C Hamano1-1/+5
Various compilation fixes and squelching of warnings. * js/misc-fixes: Correct fscanf formatting string for I64u values Silence GCC's "cast of pointer to integer of a different size" warning Squelch warning about an integer overflow
2015-10-30Merge branch 'js/misc-fixes'Libravatar Junio C Hamano1-1/+5
Various compilation fixes and squelching of warnings. * js/misc-fixes: Correct fscanf formatting string for I64u values Silence GCC's "cast of pointer to integer of a different size" warning Squelch warning about an integer overflow
2015-10-26Correct fscanf formatting string for I64u valuesLibravatar Waldek Maleska1-0/+4
This fix is probably purely cosmetic because PRIuMAX is likely identical to SCNuMAX. Nevertheless, when using a function of the scanf() family, the correct interpolation to use is the latter, not the former. Signed-off-by: Waldek Maleska <w.maleska@gmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-26Squelch warning about an integer overflowLibravatar Johannes Schindelin1-1/+1
We cannot rely on long integers to have more than 32 bits. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-20Merge branch 'jk/war-on-sprintf'Libravatar Junio C Hamano1-1/+4
Many allocations that is manually counted (correctly) that are followed by strcpy/sprintf have been replaced with a less error prone constructs such as xstrfmt. Macintosh-specific breakage was noticed and corrected in this reroll. * jk/war-on-sprintf: (70 commits) name-rev: use strip_suffix to avoid magic numbers use strbuf_complete to conditionally append slash fsck: use for_each_loose_file_in_objdir Makefile: drop D_INO_IN_DIRENT build knob fsck: drop inode-sorting code convert strncpy to memcpy notes: document length of fanout path with a constant color: add color_set helper for copying raw colors prefer memcpy to strcpy help: clean up kfmclient munging receive-pack: simplify keep_arg computation avoid sprintf and strcpy with flex arrays use alloc_ref rather than hand-allocating "struct ref" color: add overflow checks for parsing colors drop strcpy in favor of raw sha1_to_hex use sha1_to_hex_r() instead of strcpy daemon: use cld->env_array when re-spawning stat_tracking_info: convert to argv_array http-push: use an argv_array for setup_revisions fetch-pack: use argv_array for index-pack / unpack-objects ...
2015-10-05Merge branch 'kn/for-each-tag'Libravatar Junio C Hamano1-0/+3
The "ref-filter" code was taught about many parts of what "tag -l" does and then "tag -l" is being reimplemented in terms of "ref-filter". * kn/for-each-tag: tag.c: implement '--merged' and '--no-merged' options tag.c: implement '--format' option tag.c: use 'ref-filter' APIs tag.c: use 'ref-filter' data structures ref-filter: add option to match literal pattern ref-filter: add support to sort by version ref-filter: add support for %(contents:lines=X) ref-filter: add option to filter out tags, branches and remotes ref-filter: implement an `align` atom ref-filter: introduce match_atom_name() ref-filter: introduce handler function for each atom utf8: add function to align a string into given strbuf ref-filter: introduce ref_formatting_state and ref_formatting_stack ref-filter: move `struct atom_value` to ref-filter.c strtoul_ui: reject negative values
2015-10-05probe_utf8_pathname_composition: use internal strbufLibravatar Jeff King1-1/+1
When we are initializing a .git directory, we may call probe_utf8_pathname_composition to detect utf8 mangling. We pass in a path buffer for it to use, and it blindly strcpy()s into it, not knowing whether the buffer is large enough to hold the result or not. In practice this isn't a big deal, because the buffer we pass in already contains "$GIT_DIR/config", and we append only a few extra bytes to it. But we can easily do the right thing just by calling git_path_buf ourselves. Technically this results in a different pathname (before we appended our utf8 characters to the "config" path, and now they get their own files in $GIT_DIR), but that should not matter for our purposes. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-25add xsnprintf helper functionLibravatar Jeff King1-0/+3
There are a number of places in the code where we call sprintf(), with the assumption that the output will fit into the buffer. In many cases this is true (e.g., formatting a number into a large buffer), but it is hard to tell immediately from looking at the code. It would be nice if we had some run-time check to make sure that our assumption is correct (and to communicate to readers of the code that we are not blindly calling sprintf, but have actually thought about this case). This patch introduces xsnprintf, which behaves just like snprintf, except that it dies whenever the output is truncated. This acts as a sort of assert() for these cases, which can help find places where the assumption is violated (as opposed to truncating and proceeding, which may just silently give a wrong answer). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-17strtoul_ui: reject negative valuesLibravatar Matthieu Moy1-0/+3
strtoul_ui uses strtoul to get a long unsigned, then checks that casting to unsigned does not lose information and return the casted value. On 64 bits architecture, checking that the cast does not change the value catches most errors, but when sizeof(int) == sizeof(long) (e.g. i386), the check does nothing. Unfortunately, strtoul silently accepts negative values, and as a result strtoul_ui("-1", ...) raised no error. This patch catches negative values before it's too late, i.e. before calling strtoul. Reported-by: Max Kirillov <max@max630.net> Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-25Merge branch 'jk/long-error-messages'Libravatar Junio C Hamano1-1/+1
The codepath to produce error messages had a hard-coded limit to the size of the message, primarily to avoid memory allocation while calling die(). * jk/long-error-messages: vreportf: avoid intermediate buffer vreportf: report to arbitrary filehandles
2015-08-11vreportf: report to arbitrary filehandlesLibravatar Jeff King1-1/+1
The vreportf function always goes to stderr, but run-command wants child errors to go to the parent's original stderr. To solve this, commit a5487dd duplicates the stderr fd and installs die and error handlers to direct the output appropriately (which later turned into the vwritef function). This has two downsides, though: - we make multiple calls to write(), which contradicts the "write at once" logic from d048a96 (print warning/error/fatal messages in one shot, 2007-11-09). - the custom handlers basically duplicate the normal handlers. They're only a few lines of code, but we should not have to repeat the magic "exit(128)", for example. We can solve the first by using fdopen() on the duplicated descriptor. We can't pass this to vreportf, but we could introduce a new vreportf_to to handle it. However, to fix the second problem, we instead introduce a new "set_error_handle" function, which lets the normal vreportf calls output to a handle besides stderr. Thus we can get rid of our custom handlers entirely, and just ask the regular handlers to output to our new descriptor. And as vwritef has no more callers, it can just go away. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-04wrapper: implement xfopen()Libravatar Paul Tan1-0/+1
A common usage pattern of fopen() is to check if it succeeded, and die() if it failed: FILE *fp = fopen(path, "w"); if (!fp) die_errno(_("could not open '%s' for writing"), path); Implement a wrapper function xfopen() for the above, so that we can save a few lines of code and make the die() messages consistent. Helped-by: Jeff King <peff@peff.net> Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-04wrapper: implement xopen()Libravatar Paul Tan1-0/+1
A common usage pattern of open() is to check if it was successful, and die() if it was not: int fd = open(path, O_WRONLY | O_CREAT, 0777); if (fd < 0) die_errno(_("Could not open '%s' for writing."), path); Implement a wrapper function xopen() that does the above so that we can save a few lines of code, and make the die() messages consistent. Helped-by: Torsten Bögershausen <tboegi@web.de> Helped-by: Jeff King <peff@peff.net> Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-25Merge branch 'cb/array-size'Libravatar Junio C Hamano1-5/+3
* cb/array-size: Fix definition of ARRAY_SIZE for non-gcc builds
2015-06-24Fix definition of ARRAY_SIZE for non-gcc buildsLibravatar Charles Bailey1-5/+3
The improved ARRAY_SIZE macro uses BARF_UNLESS_AN_ARRAY which expands to a valid check for recent gcc versions and to 0 for older gcc versions but is not defined on non-gcc builds. Non-gcc builds need this macro to expand to 0 as well. The current outer test (defined(__GNUC__) && (__GNUC__ >= 3)) is a strictly weaker condition than the inner test (GIT_GNUC_PREREQ(3, 1)) so we can omit the outer test and cause the BARF_UNLESS_AN_ARRAY macro to be defined correctly on non-gcc builds as well as gcc builds with older versions. Signed-off-by: Charles Bailey <cbailey32@bloomberg.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-11Merge branch 'jk/diagnose-config-mmap-failure'Libravatar Junio C Hamano1-0/+1
The configuration reader/writer uses mmap(2) interface to access the files; when we find a directory, it barfed with "Out of memory?". * jk/diagnose-config-mmap-failure: xmmap(): drop "Out of memory?" config.c: rewrite ENODEV into EISDIR when mmap fails config.c: avoid xmmap error messages config.c: fix mmap leak when writing config read-cache.c: drop PROT_WRITE from mmap of index
2015-05-28config.c: avoid xmmap error messagesLibravatar Jeff King1-0/+1
The config-writing code uses xmmap to map the existing config file, which will die if the map fails. This has two downsides: 1. The error message is not very helpful, as it lacks any context about the file we are mapping: $ mkdir foo $ git config --file=foo some.key value fatal: Out of memory? mmap failed: No such device 2. We normally do not die in this code path; instead, we'd rather report the error and return an appropriate exit status (which is part of the public interface documented in git-config.1). This patch introduces a "gentle" form of xmmap which lets us produce our own error message. We do not want to use mmap directly, because we would like to use the other compatibility elements of xmmap (e.g., handling 0-length maps portably). The end result is: $ git.compile config --file=foo some.key value error: unable to mmap 'foo': No such device $ echo $? 3 Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-26Merge branch 'nd/untracked-cache'Libravatar Junio C Hamano1-0/+1
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() ...
2015-05-11Merge branch 'ep/do-not-feed-a-pointer-to-array-size'Libravatar Junio C Hamano1-1/+53
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
2015-05-05git-compat-util.h: implement a different ARRAY_SIZE macro for for safely ↵Libravatar Elia Pinto1-1/+53
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>
2015-04-16git-compat-util: add fallbacks for unlocked stdioLibravatar Jeff King1-0/+6
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>
2015-03-20Merge branch 'km/bsd-sysctl'Libravatar Junio C Hamano1-0/+3
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
2015-03-20Merge branch 'km/bsd-shells'Libravatar Junio C Hamano1-0/+4
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
2015-03-12untracked cache: guard and disable on system changesLibravatar Nguyễn Thái Ngọc Duy1-0/+1
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>
2015-03-10configure: support HAVE_BSD_SYSCTL optionLibravatar Kyle J. McKay1-0/+3
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>
2015-03-10git-compat-util.h: move SHELL_PATH default into headerLibravatar Kyle J. McKay1-0/+4
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>
2015-03-06Merge branch 'bw/kwset-use-unsigned'Libravatar Junio C Hamano1-1/+1
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
2015-03-06Merge branch 'rj/no-xopen-source-for-cygwin' into maintLibravatar Junio C Hamano1-6/+0
Code cleanups. * rj/no-xopen-source-for-cygwin: git-compat-util.h: remove redundant code
2015-03-05Merge branch 'es/squelch-openssl-warnings-on-macosx' into maintLibravatar Junio C Hamano1-3/+6
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
2015-03-05Merge branch 'rj/no-xopen-source-for-cygwin'Libravatar Junio C Hamano1-6/+0
Code cleanups. * rj/no-xopen-source-for-cygwin: git-compat-util.h: remove redundant code
2015-03-02kwset: use unsigned char to store values with high-bit setLibravatar Ben Walton1-1/+1
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>
2015-02-24Merge branch 'jk/blame-commit-label' into maintLibravatar Junio C Hamano1-0/+5
"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
2015-02-22git-compat-util.h: remove redundant codeLibravatar Ramsay Jones1-6/+0
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>
2015-02-22Merge branch 'es/squelch-openssl-warnings-on-macosx'Libravatar Junio C Hamano1-3/+6
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
2015-02-11Merge branch 'km/gettext-n'Libravatar Junio C Hamano1-0/+4
* km/gettext-n: gettext.h: add parentheses around N_ expansion if supported
2015-02-11Merge branch 'jk/blame-commit-label'Libravatar Junio C Hamano1-0/+5
"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
2015-02-09git-compat-util: do not step on MAC_OS_X_VERSION_MIN_REQUIREDLibravatar Kyle J. McKay1-3/+6
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>
2015-01-14Merge branch 'rh/autoconf-rhel3'Libravatar Junio C Hamano1-0/+3
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'
2015-01-13git-compat-util: add xstrdup_or_null helperLibravatar Jeff King1-0/+5
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>
2015-01-12gettext.h: add parentheses around N_ expansion if supportedLibravatar Kyle J. McKay1-0/+4
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>
2015-01-09configure.ac: check for HMAC_CTX_cleanupLibravatar Reuben Hawkins1-0/+3
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>
2015-01-07Merge branch 'es/squelch-openssl-warnings-on-macosx'Libravatar Junio C Hamano1-0/+4
Squelch useless compiler warnings on Mac OS X. * es/squelch-openssl-warnings-on-macosx: git-compat-util: suppress unavoidable Apple-specific deprecation warnings
2014-12-22Merge branch 'dm/compat-s-ifmt-for-zos'Libravatar Junio C Hamano1-0/+34
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