The wrapper does two things:
- Requests to open /dev/null are redirected to open the nul pseudo file.
- A request to open a file that currently exists as a directory on
Windows fails with EACCES; this is changed to EISDIR.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
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>
In this function we must be careful to handle drive-local paths else there
is a danger that it runs into an infinite loop.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
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>
This turns two switch/case statements into an if-else-if cascade because
we later do not want to have
case '/':
#ifdef __MINGW32__
case '\\':
#endif
but use a predicate is_dir_sep(foo) in order to check for the directory
separator.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
So I was looking at the disgusting size of the git binary, and even with
the debugging removed, and using -Os instead of -O2, the size of the text
section was pretty high. In this day and age I guess almost a megabyte of
text isn't really all that surprising, but it still doesn't exactly make
me think "lean and mean".
With -Os, a surprising amount of text space is wasted on inline functions
that end up just being replicated multiple times, and where performance
really isn't a valid reason to inline them. In particular, the trivial
wrapper functions like "xmalloc()" are used _everywhere_, and making them
inline just duplicates the text (and the string we use to 'die()' on
failure) unnecessarily.
So this just moves them into a "wrapper.c" file, getting rid of a tiny bit
of unnecessary bloat. The following numbers are both with "CFLAGS=-Os":
Before:
[torvalds@woody git]$ size git
text data bss dec hex filename
700460 15160 292184 1007804 f60bc git
After:
[torvalds@woody git]$ size git
text data bss dec hex filename
670540 15160 292184 977884 eebdc git
so it saves almost 30k of text-space (it actually saves more than that
with the default -O2, but I don't think that's necessarily a very relevant
number from a "try to shrink git" standpoint).
It might conceivably have a performance impact, but none of this should be
_that_ performance critical. The real cost is not generally in the wrapper
anyway, but in the code it wraps (ie the cost of "xread()" is all in the
read itself, not in the trivial wrapping of it).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
Extend parse-options test suite
api-parse-options.txt: Introduce documentation for parse options API
parse-options.c: fix documentation syntax of optional arguments
api-builtin.txt: update and fix typo
This patch serves two purposes:
1. test-parse-option.c should be a more complete
example for the parse-options API, and
2. there have been no tests for OPT_CALLBACK,
OPT_DATE, OPT_BIT, OPT_SET_INT and OPT_SET_PTR
before.
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add some documentation of basics, macros and callback
implementation of the parse-options API.
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When an argument for an option is optional, short options don't need a
space between the option and the argument, and long options need a "=".
Otherwise, arguments are misinterpreted.
Signed-off-by: Michele Ballabio <barra_cuda@katamail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Mention NEED_WORK_TREE flag and command-list.txt.
Fix "bulit-in" typo and AsciiDoc-formatting of a paragraph.
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git rebase --continue" and friends gave nonsense errors when there is no
rebase in progress.
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Mention NEED_WORK_TREE flag and command-list.txt.
Fix "bulit-in" typo and AsciiDoc-formatting of a paragraph.
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jk/test:
enable whitespace checking of test scripts
avoid trailing whitespace in zero-change diffstat lines
avoid whitespace on empty line in automatic usage message
mask necessary whitespace policy violations in test scripts
fix whitespace violations in test scripts
With this change GIT can be compiled and linked using MinGW. Builtins
that only read the repository such as the log family and grep already
work.
Simple stubs are provided for a number of functions that the Windows C
runtime does not offer. They will be completed in later patches.
However, a fix for the snprintf/vsnprintf replacement is applied here
to avoid buffer overflows.
Dmitry Kakurin pointed out that access(..., X_OK) would always fails on
Vista and suggested the -D__USE_MINGW_ACCESS workaround.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
These programs depend on difficult to emulate POSIX functionality.
On Windows, we won't compile them.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
We don't have fnmatch and regular expressions on Windows. We borrow
fnmatch.[ch] from the GNU C library (license is LGPL 2 or later) and
GNU regexp (regexp.c[ch], license is GPL 2 or later). Note that regexp.c
was changed slightly to avoid warnings with gcc.
We make the addition of these files an extra commit so as not to clutter
the next commits.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
The test used "diff-files -q" which is not about reporting if there is
a difference at all. Instead, make sure that the path remains as
conflicting in the index after rerere autoresolves it, as we will be
adding rerere.autoupdate configuration with the next patch.
It is dubious if it is cheaper to shift entries repeatedly using memmove()
to collect entries that needs to be written out in front of an array than
simply marking the entries to be skipped. In addition, the label called this
"tail optimization", but this obviously is not what people usually call
with that name.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There were too many places in the code how an entry in the rerere database
looks like, and the garbage_collect() function that iterates over
subdirectories of the rr-cache directory was the worse offender.
Introduce two helper functions, rerere_created_at() and has_resolution(),
to abstract out the logic a bit better.
Incidentally this fixes a small memory leak in garbage_collect()
function. The path list to collect the entries to be pruned were defined
to strdup the paths but the caller was feeding a path after doing an extra
copy. Because the list does not have to be sorted by conflict signature
hash, we use path_list_append() instead of path_list_insert().
While we are at it, make a conflicted hunk comparision in handle_file() a
bit easier to read.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This option behaves more like:
git push $url +refs/*:refs/*
than it does like:
git push $url +refs/heads/*:refs/heads/* +refs/tags/*:refs/tags/*
so we should document it to be more clear about that.
Suggested-by: Marek Zawirski <marek.zawirski@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add description of GIT_SKIP_TESTS variable, taken almost verbatim
(adjusting for conventions in t/README) from the commit message in
04ece59 (GIT_SKIP_TESTS: allow users to omit tests that are known to break)
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the COMMIT_EDITMSG cannot be opened, give more information to the user
by giving the 'errno' information.
Signed-off-by: Cristian Peraferrer <corellian.c@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This makes it possible to install html documents from the top level
directory. Previously such target was only in Documentation/Makefile.
Signed-off-by: Teemu Likonen <tlikonen@iki.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If a text widget is asked the index at x,y with y == 0 or y == 1 it will
always return 1.0 as the nearest index, regardless of the x position.
This means that clicking the top 2 pixels of the Unstaged/Staged Changes
lists caused the state of the file there to be toggled. This patch
checks that the pixel clicked is greater than 1, so there is less chance
of accidentally staging or unstaging changes.
Signed-off-by: Richard Quirk <richard.quirk@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The script appp.sh can be used with the External Editor extension for
Mozilla Thunderbird in order to be able to send inline patches in an
easy way.
Signed-off-by: Lukas Sandström <lukass@etek.chalmers.se>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Many error status codes simply default to 403 Forbidden, which is not
correct in most cases. This patch makes gitweb return semantically
correct status codes.
For convenience the die_error function now only takes the status code
without reason as first parameter (e.g. 404 instead of "404 Not
Found"), and it now defaults to 500 (Internal Server Error), even
though the default is not used anywhere.
Also documented status code conventions in die_error.
Signed-off-by: Lea Wiemann <LeWiemann@gmail.com>
Acked-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Once we find the absolute paths for git_dir and work_tree, we can make
git_dir a relative path since we know pwd will be work_tree. This should
save the kernel some time traversing the path to work_tree all the time
if git_dir is inside work_tree.
Daniel's patch didn't apply for me as-is, so I recreated it with some
differences, and here are the numbers from ten runs each.
There is some IO for me - probably due to more-or-less random flushing of
the journal - so the variation is bigger than I'd like, but whatever:
Before:
real 0m8.135s
real 0m7.933s
real 0m8.080s
real 0m7.954s
real 0m7.949s
real 0m8.112s
real 0m7.934s
real 0m8.059s
real 0m7.979s
real 0m8.038s
After:
real 0m7.685s
real 0m7.968s
real 0m7.703s
real 0m7.850s
real 0m7.995s
real 0m7.817s
real 0m7.963s
real 0m7.955s
real 0m7.848s
real 0m7.969s
Now, going by "best of ten" (on the assumption that the longer numbers
are all due to IO), I'm saying a 7.933s -> 7.685s reduction, and it does
seem to be outside of the noise (ie the "after" case never broke 8s, while
the "before" case did so half the time).
So looks like about 3% to me.
Doing it for a slightly smaller test-case (just the "arch" subdirectory)
gets more stable numbers probably due to not filling the journal with
metadata updates, so we have:
Before:
real 0m1.633s
real 0m1.633s
real 0m1.633s
real 0m1.632s
real 0m1.632s
real 0m1.630s
real 0m1.634s
real 0m1.631s
real 0m1.632s
real 0m1.632s
After:
real 0m1.610s
real 0m1.609s
real 0m1.610s
real 0m1.608s
real 0m1.607s
real 0m1.610s
real 0m1.609s
real 0m1.611s
real 0m1.608s
real 0m1.611s
where I'ld just take the averages and say 1.632 vs 1.610, which is just
over 1% peformance improvement.
So it's not in the noise, but it's not as big as I initially thought and
measured.
(That said, it obviously depends on how deep the working directory path is
too, and whether it is behind NFS or something else that might need to
cause more work to look up).
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Due to a misplaced list block separator, general hints about the config
file options got indented at the same level as the description of the last
option, making it easy to miss them.
Signed-off-by: Jan Krüger <jk@jk.gs>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the arguments to test_must_fail() begin with a variable assignment,
test_must_fail() attempts to execute the variable assignment as a command.
This fails, and so test_must_fail returns with a successful status value
without running the command it was intended to test.
For example, the following script:
#!/bin/sh
test_must_fail () {
"$@"
test $? -gt 0 -a $? -le 129
}
foo='wo adrian'
test_must_fail foo='yo adrian' sh -c 'echo foo: $foo'
always exits zero and prints the message:
test.sh: line 3: foo=yo adrian: command not found
Test 16 calls test_must_fail in such a way and therefore has not been
testing whether git 'do[es] not fire editor in the presence of conflicts'.
A workaround is to set and export the variable in a normal way, not
using one-shot notation. Because this would affect the remainder of
the process, the test is done inside a subshell.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
