Commit Graph

67928 Commits

Author SHA1 Message Date
Philip Oakley
f15a6c3816 msvc: add pragmas for common warnings
MSVC can be overzealous about some warnings. Disable them.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
2017-02-01 16:34:30 +01:00
Philip Oakley
336f6f548f msvc: do not include inttypes.h
This file is not available in earlier MSVC versions, and it is not
necessary to include it with MSVC, anyway.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:30 +01:00
Philip Oakley
53ead3880b msvc: add No_SafeExceptionHandler option
Microsoft flipped the Windows Safe Exception Handling default
in VS2013 so that zlib became unacceptable to certain OS versions
(Vista and subsequent 32-bit OS's) without the addition of
the option -SAFESEH:NO.

Provide a switch to disable the Safe Exception Handler when required.

The option ImageHasSafeExceptionHandlers for VS2013 is not available in
earlier versions, so use the SAFESEH:NO linker flag. See
https://msdn.microsoft.com/en-us/library/9a89h429.aspx for
further details.

This has only had limited testing due to the lack of a suitable system.

Helped-by: Yue Lin Ho <b8732003@student.nsysu.edu.tw>
Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:30 +01:00
Johannes Schindelin
cc4d095070 Vcproj.pm: urlencode '<' and '>' when generating VC projects
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:30 +01:00
Johannes Schindelin
2f4f42b251 Vcproj.pm: do not configure VCWebServiceProxyGeneratorTool
It is not necessary, and Visual Studio 2015 no longer supports it, anyway.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:30 +01:00
Philip Oakley
7983b3a83a Vcproj.pm: provide more GUIDs
Needed for: test-config; t-dump-split-index; t-dump-untracked-cache;
t-fake-ssh; t-sha1-array; t-submodule-config.

Plus a few spares.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
2017-02-01 16:34:30 +01:00
Philip Oakley
5606eeb730 Vcproj.pm: list git.exe first to be startup project
Visual Studio takes the first listed application/library as the default
startup project [1].

Detect the 'git' project and place it the head of the apps list, rather
than the tail.

Export the apps list before libs list for both the projects and global
structures of the .sln file.

[1] http://stackoverflow.com/questions/1238553/
vs2008-where-is-the-startup-project-setting-stored-for-a-solution
    "In the solution file, there are a list of pseudo-XML "Project"
    entries. It turns out that whatever is the first one ends up as
    the Startup Project, unless it’s overridden in the suo file. Argh.
    I just rearranged the order in the file and it’s good."

    "just moving the pseudo-xml isn't enough. You also have to move the
    group of entries in the "GlobalSection(ProjectConfigurationPlatforms)
    = postSolution" group that has the GUID of the project you moved to
    the top. So there are two places to move lines."

Signed-off-by: Philip Oakley <philipoakley@iee.org>
2017-02-01 16:34:29 +01:00
Philip Oakley
0c0e3fd5dc Vcproj.pm: remove duplicate GUID
Delete the duplicated GUID from the generation code for the Visual Studio
.sln project file.

The duplicate GUID tended to be allocated to test-svn-fe, which was then
ignored by Visual Studio / MSVC, and its omission from the build never
noticed.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:29 +01:00
Johannes Schindelin
e969f795f1 contrib/buildsystems: make 'Restore NuGet Packages' work in Visual Studio
Visual Studio has this very neat feature that you can get dependencies in
the form of NuGet packages, and even further: you can specify in a project
what NuGet packages it needs. These dependencies can then be fetched via
right-clicking the solution in the Solution Explorer and clicking the
"Restore NuGet Packages" entry.

This feature is so neat, in fact, that we want to support it in Git for
Windows. The idea is that we will be able to provide developers with a
checkout of the Git sources that can be built outside of the Git for
Windows SDK, using *only* Visual Studio.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:29 +01:00
Johannes Schindelin
5affb7f1d6 contrib/buildsystems: support modern Visual Studio project definitions
The .sln/.vcproj files were used to define projects up until Visual
Studio 2008, but starting with Visual Studio 2010 the project
definitions are stored in .sln/.vcxproj files (which can also be used
by the MSBuild system).

Let's just copy-edit the generator of the .vcproj files to a new
generator that produces .vcxproj files directly, without forcing Visual
Studio to upgrade the project definitions.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:29 +01:00
Johannes Schindelin
c8e165ffff contrib/buildsystems: handle options starting with a slash
With the recent changes to allow building with MSVC=1, we now pass the
/OPT:REF option to the compiler. This confuses the parser that wants to
turn the output of a dry run into project definitions for QMake and Visual
Studio:

	Unhandled link option @ line 213: /OPT:REF at [...]

Let's just extend the code that passes through options that start with a
dash, so that it passes through options that start with a slash, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:29 +01:00
Philip Oakley
626a1fb39f contrib/buildsystems: optionally capture the dry-run in a file
Add an option for capturing the output of the make dry-run used in
determining the msvc-build structure for easy debugging.

You can use the output of `--make-out <path>` in subsequent runs via the
`--in <path>` option.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:29 +01:00
Johannes Schindelin
1cdb6e0c49 contrib/buildsystems: handle libiconv, too
Git's test suite shows tons of breakages unless Git is compiled
*without* NO_ICONV. That means, in turn, that we need to generate
build definitions *with* libiconv, which in turn implies that we
have to handle the -liconv option properly.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:29 +01:00
Johannes Schindelin
76d200726d contrib/buildsystems: ignore irrelevant files in Generators/
The Generators/ directory can contain spurious files such as editors'
backup files. Even worse, there could be .swp files which are not even
valid Perl scripts.

Let's just ignore anything but .pm files in said directory.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:29 +01:00
Philip Oakley
b0a51690f6 contrib/buildsystems: handle the curl library option
Upon seeing the '-lcurl' option, point to the libcurl.lib.

While there, fix the elsif indentation.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:29 +01:00
Philip Oakley
b641249d48 contrib/buildsystems: redirect errors of the dry run into a log file
Rather than swallowing the errors, it is better to have them in a file.

To make it obvious what this is about, use the file name
'msvc-build-makedryerrors.txt'.

Further, if the output is empty, simply delete that file. As we target
Git for Windows' SDK (which, unlike its predecessor msysGit, offers
Perl versions newer than 5.8), we can use the quite readable syntax
`if -f -z $ErrsFile` (available in Perl >=5.10).

Note that the file will contain the new values of the GIT_VERSION
and GITGUI_VERSION if they were generated by the make file. They
are omitted if the release is tagged and indentically defined in
their respective GIT_VERSION_GEN file DEF_VER variables.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:28 +01:00
Philip Oakley
8956ac0955 contrib/buildsystems: ignore gettext stuff
Git's build contains steps to handle internationalization. This caused
hiccups in the parser used to generate QMake/Visual Studio project files.

As those steps are irrelevant in this context, let's just ignore them.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:28 +01:00
Philip Oakley
340b7c2064 contrib/buildsystems: handle quoted spaces in filenames
The engine.pl script expects file names not to contain spaces. However,
paths with spaces are quite prevalent on Windows. Use shellwords() rather
than split() to parse them correctly.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:28 +01:00
Philip Oakley
80913cb662 contrib/buildsystems: fix misleading error message
The error message talked about a "lib option", but it clearly referred
to a link option.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:28 +01:00
Johannes Schindelin
d161bcc1d3 .gitignore: ignore Visual Studio's temporary/generated files
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:28 +01:00
Philip Oakley
84f88a661c .gitignore: ignore library directories created by MSVC VS2008 buildsystem
Signed-off-by: Philip Oakley <philipoakley@iee.org>
2017-02-01 16:34:28 +01:00
Philip Oakley
22108f8f24 .gitignore: improve MSVC ignore patterns
Add the Microsoft .manifest pattern, and correct the generic 'Debug'
and 'Release' directory patterns which were mechanically adjusted way
back in c591d5f (gitignore: root most patterns at the top-level directory,
2009-10-26) to allow multi-level projects within the Git suite.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
2017-02-01 16:34:28 +01:00
Johannes Schindelin
a9beba2d59 t5505,t5516: create .git/branches/ when needed
It is a real old anachronism from the Cogito days to have a
.git/branches/ directory. And to have tests that ensure that Cogito
users can migrate away from using that directory.

But so be it, let's continue testing it.

Let's make sure, however, that git init does not need to create that
directory.

This bug was noticed when testing with templates that had been
pre-committed, skipping the empty branches/ directory of course because
Git does not track empty directories.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:25 +01:00
Johannes Schindelin
44e14ee0eb windows: clarify the need for invalidcontinue.obj
Git's source code wants to be able to close() the same file descriptor
multiple times, ignoring the error returned by the second call (and the
ones after that), or to access the osfhandle of an already-closed stdout,
among other things that the UCRT does not like.

Simply linking invalidcontinue.obj allows such usage without resorting to
Debug Assertions (or exiting with exit code 9 in Release Mode).

Let's add a note so we don't forget, as suggested by Jeff Hostetler.

See https://msdn.microsoft.com/en-us/library/ms235330.aspx for more
details.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:24 +01:00
Johannes Schindelin
99b939639a .gitattributes: fix end-of-lines
The test suite does actually not pass when files are checked out with
CR/LF line endings, so we have to force them to LF-only.

For good measure, we simply force all source files to LF, also to make
it easier for Git for Windows contributors to contribute to upstream
Git's source code.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:24 +01:00
Johannes Schindelin
53538e2995 Ensure that bin-wrappers/* targets adds .exe if necessary
When compiling with Visual Studio, the projects' names are identical to
the executables modulo the extensions. Which means that the bin-wrappers
*need* to target the .exe files lest they try to execute directories.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:24 +01:00
Johannes Schindelin
1924a3494e terminal.c: guard the inclusion of inttypes.h
We do have a lovely Makefile option to state that that header file is
not available. Let's use it everywhere...

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:24 +01:00
Johannes Schindelin
4dcce49bd2 obstack: fix compiler warning
MS Visual C suggests that the construct

	condition ? (int) i : (ptrdiff_t) d

is incorrect. Let's fix this by casting to ptrdiff_t also for the
positive arm of the conditional.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:24 +01:00
Philip Oakley
81bb3a74aa Avoid multiple PREFIX definitions
The short and sweet PREFIX can be confused when used in many places.

Rename both usages to better describe their purpose. EXEC_CMD_PREFIX is
used in full to disambiguate it from the nearby GIT_EXEC_PATH.

The PREFIX in sideband.c, while nominally independant of the exec_cmd
PREFIX, does reside within libgit[1], so the definitions would clash
when taken together with a PREFIX given on the command line for use by
exec_cmd.c.

Noticed when compiling Git for Windows using MSVC/Visual Studio [1] which
reports the conflict beteeen the command line definition and the
definition in sideband.c within the libgit project.

[1] the libgit functions are brought into a single sub-project
within the Visual Studio construction script provided in contrib,
and hence uses a single command for both exec_cmd.c and sideband.c.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
2017-02-01 16:34:24 +01:00
Philip Oakley
4ff1321154 perl/Makefile: treat a missing PM.stamp as if empty
'make clean', or a 'git clean -dfx' will delete the PM stamp file,
so it cannot be a direct target in such clean conditions, resulting
in an error.

Normally the PM.stamp is recreated by the git/Makefile, except when
a dry-run is requested, for example, as used in the msysgit msvc-build
script which implements the compat/vcbuild/README using
contrib/buildsystems. The script msvc-build is introduced later in this
series.

Protect the PM.stamp target when the PM.stamp file does not exist,
allowing a Git 'Makefile -n' to succeed on a clean repo.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
---
This is development of the original "[PATCH 4/17] Makefile: a dry-run
can error out if no perl. Document the issue" 2015-06-25,
(http://marc.info/?l=git&m=143519054716960&w=2), which simply documented
the issue and then used NO_PERL to avoid the problem. See follow on
email thread for some discussion.
2017-02-01 16:34:24 +01:00
Johannes Schindelin
562ae589a9 Really work around "uninitialized value" warning
Ever since 457f08a (git-rev-list: add --bisect-vars option.,
2007-03-21), Git's source code uses the following trick to fool GCC into
*not* warning about uninitialized values:

	int value = value;

We use this trick to silence the "warning: ‘x’ is used uninitialized in
this function [-Wuninitialized]" when the variables are not really used
uninitialized (but it is hard for the compiler to determine that).

This trick works well for GCC, and even Clang seems to appease that
workaround.

Not so Visual C. It does realize that this is just a trick to fool it,
and it simply refuses to be fooled.

The only way to silence the warning for Visual C would be to write
something like this:

	#pragma warning(suppress: 4700)
	int value;

Obviously this is not portable, and neither is that trick that fools
GCC. So let's just introduce a new macro that continues to fool GCC, but
simply initializes the values everywhere else.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:24 +01:00
Johannes Schindelin
d7751c9633 Merge pull request #677 from yaras/fix-git-675
Fixed masking username with asterisks when reading credentials
2017-02-01 16:34:08 +01:00
Johannes Schindelin
3c8efcaeef mingw: support spawning programs containing spaces in their names
The CreateProcessW() function does not really support spaces in its
first argument, lpApplicationName. But it supports passing NULL as
lpApplicationName, which makes it figure out the application from the
(possibly quoted) first argument of lpCommandLine.

Let's use that trick (if we are certain that the first argument matches
the executable's path) to support launching programs whose path contains
spaces.

This fixes https://github.com/git-for-windows/git/issue/692

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:08 +01:00
Johannes Schindelin
866b0f75b6 Merge 'git-gui-add-2nd-line' into HEAD 2017-02-01 16:34:07 +01:00
Johannes Schindelin
4716dc621b Merge branch 'clean-long-paths'
This addresses https://github.com/git-for-windows/git/issues/521

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:06 +01:00
Johannes Schindelin
72e95f72c0 Merge 'aslr' into HEAD
Address Space Layout Randomization (ASLR) allows executables' memory
layout to change at random between runs, and therefore offers a quite
decent protection against many attacks.

We enable ASLR because MSYS2's C compiler offers support for ASLR, and
whatever performance impact it has is neglible, according to
https://insights.sei.cmu.edu/cert/2014/02/differences-between-aslr-on-windows-and-linux.html

This merges the part of https://github.com/git-for-windows/git/pull/612
that does not break Git ;-)

This fixes https://github.com/git-for-windows/git/issues/608

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:34:05 +01:00
Johannes Schindelin
6bf53d7c5c Merge pull request #552 from duncansmart/fix-vcproj-gen
Fix Visual Studio .sln/.vcproj generation.
2017-02-01 16:34:05 +01:00
Johannes Schindelin
77c7acd600 Merge pull request #773 from jeffhostetler/vs2015
Build with VS2015
2017-02-01 16:34:04 +01:00
Johannes Schindelin
c75f7f9a02 compat/vcbuild: possibly reuse Git for Windows' SDK's NuGet
In Git for Windows' SDK, there is already a script to package Git for
Windows as a NuGet package, downloading nuget.exe if needed.

Let's just fall back to using that executable (if it is there) if
nuget.exe was not found in the PATH.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:33:44 +01:00
Jeff Hostetler
7ea4705212 vs2015: remove todo list item from README_vs2015.txt
Remove todo list item for vs2015 build notes regarding
the third party DLLs.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2017-02-01 16:33:43 +01:00
Jeff Hostetler
d71db554c1 vs2015: teach 'make clean' to delete PDBs
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2017-02-01 16:33:43 +01:00
Jeff Hostetler
40a831360e vs2015: turn on optimize-for-speed in release build
Set -O2 (maximize speed) rather than -Os (favor small code)
for non-debug builds.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2017-02-01 16:33:43 +01:00
Johannes Schindelin
b690a9fb49 t7800: fix quoting
When passing a command-line to call an external diff command to the
difftool, we must be prepared for paths containing special characters,
e.g. backslashes in the temporary directory's path on Windows.

This has been caught by running the test suite with an MSVC-built Git:
in contrast to the MINGW one, it does not rewrite `$TMP` to use forward
slashes instead of backslashes.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:33:43 +01:00
Johannes Schindelin
67fe02e82c msvc: work around iconv() not setting errno
When compiling with MSVC, we rely on NuPkgs to provide the binaries of
dependencies such as libiconv. The libiconv 1.14.0.11 package available
from https://www.nuget.org/packages/libiconv seems to have a bug where
it does not set errno (when we would expect it to be E2BIG).

Let's simulate the error condition by taking less than 16 bytes
remaining in the out buffer as an indicator that we ran out of space.
While 16 might seem a bit excessive (when converting from, say, any
encoding to UTF-8, 8 bytes should be fine), it is designed to be a safe
margin.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:33:43 +01:00
Johannes Schindelin
1cb14d4923 msvc: use libiconv
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:33:43 +01:00
Jeff Hostetler
22c93e7dc4 msvc: use OpenSSL's SHA-1 routines
Just like 1e2ce1d (sha1: Use OpenSSL SHA1 routines on MINGW, 2016-10-12),
we now use OpenSSL's SHA-1 routines instead of Git's own because OpenSSL
is substantially faster as of version 1.0.2: it now uses hardware
acceleration on Intel processors much more effectively.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:33:43 +01:00
Johannes Schindelin
bd5e8d4793 msvc: respect the quiet-by-default output
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-02-01 16:33:43 +01:00
Jeff Hostetler
6097db940c msvc: release mode PDBs and library DLLs
Install required third-party DLLs next to EXEs.

Build and install release mode PDBs for git
executables allowing detailed stack traces
in the event of crash.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2017-02-01 16:33:43 +01:00
Jeff Hostetler
52f4c317f0 msvc: fix setvbuf() call
The VS2015 version of the CRT asserts when you
pass a zero buffer length and request line buffering.
This fix sets it to the default BUFSIZ.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2017-02-01 16:33:42 +01:00
Jeff Hostetler
438d194323 cache-tree.c: avoid reusing the DEBUG constant
In MSVC, the DEBUG constant is set automatically whenever compiling with
debug information.

This is clearly not what was intended in cache-tree.c, so let's use a less
ambiguous constant there.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2017-02-01 16:33:42 +01:00