Commit Graph

91639 Commits

Author SHA1 Message Date
Johannes Schindelin
55709a3a76 Merge branch 'msys2-git-gui'
This topic branch addresses the bug where Git for Windows 2.x' Git GUI
failed to generate a working shortcut via Repository>Create Desktop
Shortcut.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:09 -04:00
Johannes Schindelin
9842a54c3a mingw: allow absolute paths without drive prefix
When specifying an absolute path without a drive prefix, we convert that
path internally. Let's make sure that we handle that case properly, too
;-)

This fixes the command

	git clone https://github.com/git-for-windows/git \G4W

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:08 -04:00
Johannes Schindelin
340427a01e Merge 'git-gui' into HEAD 2018-09-10 16:42:08 -04:00
Johannes Schindelin
5faa51962f mingw: demonstrate a problem with certain absolute paths
On Windows, there are several categories of absolute paths. One such
category starts with a backslash and is implicitly relative to the
drive associated with the current working directory. Example:

	c:
	git clone https://github.com/git-for-windows/git \G4W

should clone into C:\G4W.

There is currently a problem with that, in that mingw_mktemp() does not
expect the _wmktemp() function to prefix the absolute path with the
drive prefix, and as a consequence, the resulting path does not fit into
the originally-passed string buffer. The symptom is a "Result too large"
error.

Reported by Juan Carlos Arevalo Baeza.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:08 -04:00
Johannes Schindelin
226b1254cf Merge 'readme' into HEAD
Add a README.md for GitHub goodness.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:08 -04:00
Johannes Schindelin
2969f42fc5 abspath_part_inside_repo: respect core.fileMode
If the file system is case-insensitive, we really must be careful to
ignore differences in case only.

This fixes https://github.com/git-for-windows/git/issues/735

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:07 -04:00
Johannes Schindelin
c5776637c0 fscache: add a test for the dir-not-found optimization
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:07 -04:00
Jeff Hostetler
02d2c55263 fscache: remember not-found directories
Teach FSCACHE to remember "not found" directories.

This is a performance optimization.

FSCACHE is a performance optimization available for Windows.  It
intercepts Posix-style lstat() calls into an in-memory directory
using FindFirst/FindNext.  It improves performance on Windows by
catching the first lstat() call in a directory, using FindFirst/
FindNext to read the list of files (and attribute data) for the
entire directory into the cache, and short-cut subsequent lstat()
calls in the same directory.  This gives a major performance
boost on Windows.

However, it does not remember "not found" directories.  When STATUS
runs and there are missing directories, the lstat() interception
fails to find the parent directory and simply return ENOENT for the
file -- it does not remember that the FindFirst on the directory
failed. Thus subsequent lstat() calls in the same directory, each
re-attempt the FindFirst.  This completely defeats any performance
gains.

This can be seen by doing a sparse-checkout on a large repo and
then doing a read-tree to reset the skip-worktree bits and then
running status.

This change reduced status times for my very large repo by 60%.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:07 -04:00
Jeff Hostetler
4c39922e6e fscache: add key for GIT_TRACE_FSCACHE
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:07 -04:00
Johannes Schindelin
ab4469602e Merge branch 'long-paths'
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:07 -04:00
Max Kirillov
151a9df03b git-gui: correctly restore GIT_DIR after invoking gitk
git-gui tries to temporary set GIT_DIR for starting gitk and restore
it back after they are started. But in case of GIT_DIR which was not set
prior to invocation it is not unset after it. This affects commands
which can be later started from that git gui, for example "Git Bash".

Fix it.

Signed-off-by: Max Kirillov <max@max630.net>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:06 -04:00
Johannes Schindelin
8e9edbbb51 t5580: verify that alternates can be UNC paths
On Windows, UNC paths are a very convenient way to share data, and
alternates are all about sharing data.

We fixed a bug where alternates specifying UNC paths were not handled
properly, and it is high time that we add a regression test to ensure
that this bug is not reintroduced.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:06 -04:00
Jeff Hostetler
b06089b1d1 diffcore-rename: speed up register_rename_src
Teach register_rename_src() to see if new file pair
can simply be appended to the rename_src[] array before
performing the binary search to find the proper insertion
point.

This is a performance optimization.  This routine is called
during run_diff_files in status and the caller is iterating
over the sorted index, so we should expect to be able to
append in the normal case.  The existing insert logic is
preserved so we don't have to assume that, but simply take
advantage of it if possible.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2018-09-10 16:42:06 -04:00
Johannes Schindelin
31ca1ae88d poll: lazy-load GetTickCount64()
This fixes the compilation, actually, as we still did not make the jump to
post-Windows XP completely: we still compile with _WIN32_WINNT set to
0x0502 (which corresponds to Windows Server 2003 and is technically
greater than Windows XP's 0x0501).

However, GetTickCount64() is only available starting with Windows
Vista/Windows Server 2008.

Let's just lazy-load the function, which should also help Git for Windows
contributors who want to reinstate Windows XP support.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:06 -04:00
Johannes Schindelin
9b77f71c04 Merge branch 'git-gui'
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:06 -04:00
Steve Hoelzer
0294ef4b81 poll: Use GetTickCount64 to avoid wraparound issues
From Visual Studio 2015 Code Analysis: Warning C28159 Consider using
'GetTickCount64' instead of 'GetTickCount'.

Reason: GetTickCount overflows roughly every 49 days. Code that does not
take that into account can loop indefinitely. GetTickCount64 operates on
64 bit values and does not have that problem.

Signed-off-by: Steve Hoelzer <shoelzer@gmail.com>
2018-09-10 16:42:06 -04:00
Johannes Schindelin
788bf71f13 Support Vagrant: quick & easy Linux virtual machine setup
When developing Git for Windows, we always have to ensure that we do not
break any non-Windows platforms, e.g. by introducing Windows-specific code
into the platform-independent source code.

At other times, it is necessary to test whether a bug is Windows-specific
or not, in order to send the bug report to the correct place. Having
access to a Linux-based Git comes in really handy in such a situation.

Vagrant offers a painless way to install and use a defined Linux
development environment on Windows (and other Operating Systems). We offer
a Vagrantfile to that end for two reasons:

1) To allow Windows users to gain the full power of Linux' Git

2) To offer users an easy path to verify that the issue they are about
   to report is really a Windows-specific issue; otherwise they would
   need to report it to git@vger.kernel.org instead.

Using it is easy: Download and install https://www.virtualbox.org/, then
download and install https://www.vagrantup.com/, then direct your
command-line window to the Git source directory containing the Vagrantfile
and run the commands:

	vagrant up
	vagrant ssh

See https://github.com/git-for-windows/git/wiki/Vagrant for details.

As part of switching Git for Windows' development environment from msysGit
to the MSys2-based Git SDK, this Vagrantfile was copy-edited from msysGit:

	https://github.com/msysgit/msysgit/blob/0be8f2208/Vagrantfile

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:05 -04:00
Johannes Schindelin
f9bd9132b6 msvc: avoid debug assertion windows in Debug Mode
For regular debugging, it is pretty helpful when a debug assertion in a
running application triggers a window that offers to start the debugger.

However, when running the test suite, it is not so helpful, in
particular when the debug assertions are then suppressed anyway because
we disable the invalid parameter checking (via invalidcontinue.obj, see
the comment in config.mak.uname about that object for more information).

So let's simply disable that window in Debug Mode (it is already
disabled in Release Mode).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:05 -04:00
Johannes Schindelin
2d3dded4e2 Merge 'no-dashed-invocation' into HEAD 2018-09-10 16:42:05 -04:00
Johannes Schindelin
3f7585359c Merge 'misc-vs-fixes' into HEAD 2018-09-10 16:42:04 -04:00
Johannes Schindelin
566fec3f52 msvc: add a Makefile target to pre-generate the VS solution
The entire idea of generating the VS solution makes only sense if we
generate it via Continuous Integration; otherwise potential users would
still have to download the entire Git for Windows SDK.

So let's just add a target in the Makefile that can be used to generate
said solution; The generated files will then be committed so that they
can be pushed to a branch ready to check out by Visual Studio users.

To make things even more useful, we also generate and commit other files
that are required to run the test suite, such as templates and
bin-wrappers: with this, developers can run the test suite in a regular
Git Bash (that is part of a regular Git for Windows installation) after
building the solution in Visual Studio.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:04 -04:00
Johannes Schindelin
227e3621bf msvc: fix make test without having to play PATH games
When building with Microsoft Visual C, we use NuGet to acquire the
dependencies (such as OpenSSL, cURL, etc). We even unpack those
dependencies.

This patch teaches the test suite to add the directory with the unpacked
.dll files to the PATH before running the tests.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:04 -04:00
Johannes Schindelin
03fd4cfc8d msvc: ignore incremental compile output
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:04 -04:00
Johannes Schindelin
e2d93f2939 msvc: ignore .dll files copied into the top-level directory
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:04 -04:00
Johannes Schindelin
00ad645bf6 msvc: tell Visual Studio where we expect NuGet packages to be unpacked
We already unpack the NuGet packages in a certain place, via
compat/vcbuild/Makefile. Let's let Visual Studio use the very same place.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:04 -04:00
Philip Oakley
a7fc190353 msvc: add pragmas for common warnings
MSVC can be overzealous about some warnings. Disable them.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
2018-09-10 16:42:03 -04:00
Philip Oakley
1783843552 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>
2018-09-10 16:42:03 -04:00
Philip Oakley
df3189873f 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>
2018-09-10 16:42:03 -04:00
Johannes Schindelin
fdddeeea12 Vcproj.pm: urlencode '<' and '>' when generating VC projects
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:03 -04:00
Johannes Schindelin
0be88aacd8 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>
2018-09-10 16:42:03 -04:00
Philip Oakley
cc626ac2c8 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>
2018-09-10 16:42:03 -04:00
Philip Oakley
d65a85eed5 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>
2018-09-10 16:42:03 -04:00
Philip Oakley
14ce4fd461 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>
2018-09-10 16:42:03 -04:00
Johannes Schindelin
cc23a2c32f 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>
2018-09-10 16:42:03 -04:00
Johannes Schindelin
5ded506579 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>
2018-09-10 16:42:02 -04:00
Johannes Schindelin
04945f5ea2 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>
2018-09-10 16:42:02 -04:00
Philip Oakley
9fd9c729f8 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>
2018-09-10 16:42:02 -04:00
Johannes Schindelin
2768088e22 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>
2018-09-10 16:42:02 -04:00
Johannes Schindelin
b4457af93a 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>
2018-09-10 16:42:02 -04:00
Philip Oakley
6a9f43717e 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>
2018-09-10 16:42:02 -04:00
Philip Oakley
4d537db80b 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>
2018-09-10 16:42:02 -04:00
Philip Oakley
4f825ab469 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>
2018-09-10 16:42:02 -04:00
Philip Oakley
fd7414b1d9 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>
2018-09-10 16:42:02 -04:00
Philip Oakley
77abd6a22a 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>
2018-09-10 16:42:02 -04:00
Johannes Schindelin
6b1a170bd6 git: avoid calling aliased builtins via their dashed form
This is one of the few places where Git violates its own deprecation of
the dashed form. It is not necessary, either.

As of 595d59e2b5 (git.c: ignore pager.* when launching builtin as
dashed external, 2017-08-02), Git wants to ignore the pager.* config
setting when expanding aliases. So let's strip out the
check_pager_config(<command-name>) call from the copy-edited code.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:01 -04:00
Johannes Schindelin
08c89e2098 .gitignore: ignore Visual Studio's temporary/generated files
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2018-09-10 16:42:01 -04:00
Philip Oakley
2b5abb32d2 .gitignore: ignore library directories created by MSVC VS2008 buildsystem
Signed-off-by: Philip Oakley <philipoakley@iee.org>
2018-09-10 16:42:01 -04:00
Philip Oakley
416d4c6606 .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>
2018-09-10 16:42:01 -04:00
Johannes Schindelin
56da52ce56 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>
2018-09-10 16:42:00 -04:00
Johannes Schindelin
720c92afd9 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>
2018-09-10 16:42:00 -04:00