Commit Graph

92 Commits

Author SHA1 Message Date
Brad King 86578eccf2 Simplify CMake per-source license notices
Per-source copyright/license notice headers that spell out copyright holder
names and years are hard to maintain and often out-of-date or plain wrong.
Precise contributor information is already maintained automatically by the
version control tool.  Ultimately it is the receiver of a file who is
responsible for determining its licensing status, and per-source notices are
merely a convenience.  Therefore it is simpler and more accurate for
each source to have a generic notice of the license name and references to
more detailed information on copyright holders and full license terms.

Our `Copyright.txt` file now contains a list of Contributors whose names
appeared source-level copyright notices.  It also references version control
history for more precise information.  Therefore we no longer need to spell
out the list of Contributors in each source file notice.

Replace CMake per-source copyright/license notice headers with a short
description of the license and links to `Copyright.txt` and online information
available from "https://cmake.org/licensing".  The online URL also handles
cases of modules being copied out of our source into other projects, so we
can drop our notices about replacing links with full license text.

Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority
of the replacements mechanically.  Manually fix up shebang lines and trailing
newlines in a few files.  Manually update the notices in a few files that the
script does not handle.
2016-09-27 15:14:44 -04:00
Brad King 9a77680eed Ninja: Conditionally allow Fortran based on ninja 'dyndep' support
Detect from the version of Ninja whether it supports the dynamically
discovered dependencies (dyndep) feature needed to support Fortran.
2016-09-22 13:53:09 -04:00
Brad King 0f331d7893 Ninja: Add internal tool to produce a ninja dyndep file for Fortran
Create an internal `cmake -E cmake_ninja_dyndep` tool to read the "ddi"
files generated by `cmake -E cmake_ninja_depends` from all sources in a
target and generate a ninja dyndep file that tells Ninja about Fortran
module dependencies within the target and on target dependencies.
2016-09-22 13:52:57 -04:00
Brad King a57d1bb712 Ninja: Add API to check for dyndep support
Kitware maintains a branch of Ninja with support for dynamically
discovered dependencies (dyndep) that has not yet been accepted
upstream.  Add an internal API to check whether the Ninja version in use
for the build supports this feature.
2016-09-22 13:52:03 -04:00
Brad King 0488ae63ea Ninja: Refactor ninja feature detection
Check for features as soon as we know the ninja version.  Save the
results so we do not have to re-compare versions every time.
2016-09-22 13:52:02 -04:00
Brad King f0a23aa3db Ninja: Refactor Fortran rejection logic
Delay rejection of Fortran until after we've determined the version of
the `ninja` tool to be used.  This will later allow us to enable Fortran
support based on the version of ninja.

While at it, make the rejection an immediate fatal error.  Also provide
a stack trace so readers know what code tried to enable Fortran.
2016-09-22 13:51:58 -04:00
Brad King 501f9c9367 cmGlobalNinjaGenerator: Add API to check for implicit outputs support
Ninja 1.7 introduced support for implicit outputs on build statements.
Add an internal API to check whether the Ninja version in use for the
build supports this feature.
2016-09-20 08:51:57 -04:00
Brad King 144a24dcdc cmGlobalNinjaGenerator: Teach WriteBuild about implicit outputs
Ninja 1.7 introduced support for implicit outputs on build statements.
Teach WriteBuild to generate the corresponding syntax.  Leave it up to
callers to decide whether implicit outputs are supported by the Ninja
version in use.  For now simply update all call sites to pass an empty
list of implicit outputs.
2016-09-20 08:51:57 -04:00
Daniel Pfeifer efed6468ed fix a load of include-what-you-use violations 2016-09-03 08:04:56 -04:00
Kulla Christoph 048d1adb4e add_custom_command: Add DEPFILE option for Ninja
Provide a way for custom commands to inform the ninja build tool about
their implicit dependencies.  For now simply make use of the option an
error on other generators.

Closes: #15479
2016-08-30 09:05:18 -04:00
Brad King 1296a0eada Ninja: Fix inter-target order-only dependencies of custom commands
Custom command dependencies are followed for each target's source files
and add their transitive closure to the corresponding target.  This
means that when a custom command in one target has a dependency on a
custom command in another target, both will appear in the dependent
target's sources.  For the Makefile, VS IDE, and Xcode generators this
is not a problem because each target gets its own independent build
system that is evaluated in target dependency order.  By the time the
dependent target is built the custom command that belongs to one of its
dependencies will already have been brought up to date.

For the Ninja generator we need to generate a monolithic build system
covering all targets so we can have only one copy of a custom command.
This means that we need to reconcile the target-level ordering
dependencies from its appearance in multiple targets to include only the
least-dependent common set.  This is done by computing the set
intersection of the dependencies of all the targets containing a custom
command.  However, we previously included only the direct dependencies
so any target-level dependency not directly added to all targets into
which a custom command propagates was discarded.

Fix this by computing the transitive closure of dependencies for each
target and then intersecting those sets.  That will get the common set
of dependencies.  Also add a test to cover a case in which the
incorrectly dropped target ordering dependencies would fail.
2016-07-20 13:12:24 -04:00
Tobias Hunger 4db08807db CMake: Report whether generators support platforms 2016-07-14 10:35:58 -04:00
Daniel Pfeifer 1d6909a287 use CM_NULLPTR 2016-06-28 09:02:26 -04:00
Daniel Pfeifer a7a9239096 mark functions with CM_OVERRIDE 2016-06-27 23:24:38 +02:00
Nicolas Despres 8a862a4d4b Ninja: Support embedding of CMake as subninja project
Add a `CMAKE_NINJA_OUTPUT_PATH_PREFIX` variable.  When it is set, CMake
generates a `build.ninja` file suitable for embedding into another ninja
project potentially generated by an alien generator.
2016-05-17 09:34:12 -04:00
Nicolas Despres 038e7716e5 Ninja: Pass all build paths through a central method
This gives us a central location to revise paths.
2016-05-17 09:34:11 -04:00
Nicolas Despres 0397c92a15 Ninja: Pre-compute "CMakeCache.txt" build target name 2016-05-17 09:34:08 -04:00
Nicolas Despres 3b3ecdfa48 Ninja: Pre-compute "all" build target name 2016-05-17 09:34:07 -04:00
Kitware Robot d9fd2f5402 Revise C++ coding style using clang-format
Run the `Utilities/Scripts/clang-format.bash` script to update
all our C++ code to a new style defined by `.clang-format`.
Use `clang-format` version 3.8.

* If you reached this commit for a line in `git blame`, re-run the blame
  operation starting at the parent of this commit to see older history
  for the content.

* See the parent commit for instructions to rebase a change across this
  style transition commit.
2016-05-16 16:05:19 -04:00
Brad King 180538c706 Source: Stabilize include order
Each source file has a logical first include file.  Include it in an
isolated block so that tools that sort includes do not move them.
2016-04-29 13:58:31 -04:00
Dmitry Ivanov f9644a2d1b cmGlobalNinjaGenerator: Clarify logic for forcing use of response files
Update the WriteBuild method to use a negative command line length limit
to specify that we should force use of response files.
2016-04-07 09:45:29 -04:00
Charles Huet ca575fe935 Ninja: Add `$subdir/all` targets
With the Makefile generator one can use `cd $subdir; make all` to build
all targets associated with a given subdirectory.  This is not possible
to do with the Ninja generator since there is only one `build.ninja`
file at the top of the build tree.  However, we can approximate it by
allowing one to run `ninja $subdir/all` at the top of the tree to build
the targets in the corresponding subdirectory.

Port logic from cmGlobalUnixMakefileGenerator3::WriteDirectoryRule2 to
cmGlobalNinjaGenerator in order to produce equivalent directory-level
targets.
2016-03-18 10:59:01 -04:00
Brad King 7d64a0598d Ninja: Add 'restat' parameter to custom command generation method
Pass 'true' from all call sites to preserve existing behavior.
2015-11-19 15:11:00 -05:00
Robert Dailey 2b958a2027 cmake-gui: Add option to specify generator toolset
The -T parameter to CMake may now be specified through cmake-gui via a
new text field in the first-time configure wizard (below the generator
chooser).

The generator factories specify whether or not they support toolsets.
This information is propagated to the Qt code and used to determine if
the selected generator should also display the optional Toolset widgets.
2015-11-17 10:03:10 -05:00
Brad King a3c5ca960b cmGlobalNinjaGenerator: Save 'ninja' version very early
Keep it in a member variable for convenient reference.  Store the
value as soon as it is known.
2015-11-02 16:37:59 -05:00
Brad King ed67f40522 cmGlobalNinjaGenerator: Save path to 'ninja' tool very early
Keep it in a member variable for convenient reference.  Set the
value as soon as it is known.
2015-11-02 16:27:31 -05:00
Stephen Kelly 80de856bb5 Ninja: Port to cmGeneratorTarget. 2015-10-24 09:19:53 +02:00
Brad King 6e2a4087f2 Ninja: Centralize path conversion in global generator (#15757)
In the Ninja generator we run all build rules from the top of the build
tree rather than changing into each subdirectory.  Therefore we convert
all paths relative to the HOME_OUTPUT directory.  However, the Convert
method on cmLocalGenerator restricts relative path conversions to avoid
leaving the build tree with a "../" sequence.  Therefore conversions
performed for "subdirectories" that are outside the top of the build
tree always use full paths while conversions performed for
subdirectories that are inside the top of the build tree may use
relative paths to refer to the same files.

Since Ninja always runs rules from the top of the build tree we should
convert them using only the top-level cmLocalGenerator in order to
remain consistent.  Also extend the test suite with a case that fails
without this fix.
2015-09-25 14:36:30 -04:00
Stephen Kelly ff8ac8ee6a cmLocalGenerator: Create from already-constructed cmMakefile.
Don't manage the lifetime of the cmMakefile with cmLocalGenerator.
2015-08-28 18:44:39 +02:00
Stephen Kelly 0bd7279fd9 Ninja: Remove some incorrect comments adding no value. 2015-08-28 18:44:39 +02:00
Stephen Kelly 9b6a743b80 cmLocalGenerator: Remove Parent pointer. 2015-08-28 18:44:38 +02:00
Brad King f33ccc270e Merge topic 'rm-Makefile-LocalGenerator'
1689c91d cmMakefile: Remove unused method.
dd11f72c cmGlobalGenerator: Base exclusion computation on cmGeneratorTarget.
2015-08-11 08:47:05 -04:00
James Johnston c5ac2b9df3 Ninja: Centralized required Ninja version numbers and comparisons. 2015-08-09 13:31:24 -04:00
Stephen Kelly dd11f72ced cmGlobalGenerator: Base exclusion computation on cmGeneratorTarget. 2015-08-07 00:32:15 +02:00
Brad King 001f9b3617 Add common base classes to Makefile and Ninja generators
Provide a place to move functionality common to both.
2015-07-09 09:50:05 -04:00
Stephen Kelly 3b880a0741 cmLocalGenerator: Require a valid cmState::Snapshot in the ctor.
Refactor the local generator creation API to accept a
cmState::Snapshot.  Adjust MakeLocalGenerator to use the 'current'
snapshot in cases where there is no parent.  Create the snapshot
for subdirectories in cmMakefile::AddSubdirectory.

This means that snapshots are now created at the point of extending the tree,
as appropriate, and independently of the cmLocalGenerator and cmMakefile they
represent the state for.
2015-05-27 09:18:32 -04:00
Stephen Kelly c7b79aa16a cmGlobalGenerator: Require a cmake instance in ctor.
It is required anyway, so this makes it explicit.
2015-05-27 09:18:31 -04:00
Brad King a390de65e0 Ninja: Generate separate compile and link rules for each target
Our <LANG>_COMPILER and <LANG>_<TARGET_TYPE>_LINKER rule generation has
access to a specific cmTarget so the results may depend on it.  Instead
generate separate rules for each target using an encoded target name.
In particular, this makes CTEST_USE_LAUNCHERS report proper target
information.
2015-05-18 15:01:06 -04:00
Thomas Herz b3de0dfe93 Ninja: Use forward slashes for any GCC on Windows (#15439)
Any GCC compiler on a Windows host needs forward slashes, not just
those built for MinGW.
2015-05-07 14:07:20 -04:00
Brad King 378c2a0e86 Ninja: Refactor detection of MinGW tools on Windows
Check for CMAKE_COMPILER_IS_MINGW only after enabling a language when it
might actually be set.  Previously this worked by accident because the
check for working compiler or a second language enabled would cause the
code path to be taken.

Store UsingMinGW as an instance member of cmGlobalNinjaGenerator so that
it is reset on each reconfigure.  Otherwise cmake-gui cannot switch
between build trees for MinGW or non-MinGW tools.
2015-05-07 14:02:44 -04:00
Stephen Kelly a48aebcb67 cmLocalGenerator: Require a parent in the constructor.
Pass the parent though cmGlobalGenerator::CreateLocalGenerator.

This will make it easy to initialize state scopes independent of
cmMakefile.
2015-04-28 07:50:52 +02:00
Brad King bd9c7f9b2c Ninja: Add policy to require explicit custom command byproducts
Add policy CMP0058 to avoid generating 'phony' ninja rules for unknown
custom command dependencies.  This requires projects to specify their
custom command byproducts explicitly.  With this requirement we no
longer have to assume that unknown custom command dependencies are
generated and can instead simply assume they are source files expected
to exist when the build starts.  This is particularly important in
in-source builds.  It is also helpful for out-of-source builds to allow
Ninja to diagnose missing files before running custom command rules that
depend on them.
2015-03-20 17:40:12 -04:00
Brad King 82a37d3ce5 cmGlobalNinjaGenerator: Drop unused member 2015-03-18 16:15:01 -04:00
Gregor Jasny ce935ebe50 cmake: Teach --build to honor CMAKE_VERBOSE_MAKEFILE for Ninja
The Ninja build system does not support a in-file verbositiy switch.
Instead teach 'cmake --build' to extract the CMAKE_VERBOSE_MAKEFILE
setting and pass it as an optional '-v' argument to Ninja.  This can
serve as a reasonable fallback.

Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
2015-02-26 09:51:11 -05:00
Brad King 67bd514adc Ninja: Refactor restat to be a string internally
This will allow values other than "" and "1" to be generated in
the rules.ninja file.
2014-11-14 16:16:00 -05:00
Peter Collingbourne f42d86f0b8 Ninja: Implement USES_TERMINAL using the console pool if available 2014-11-14 11:56:33 -05:00
Peter Collingbourne d5eae5563f Ninja: factor out the test for console pool support 2014-11-14 11:56:33 -05:00
Geoff Viola bef23e8181 Fix some spelling errors in comments 2014-10-13 10:00:53 -04:00
Sylvain Joubert 9f32a2411b Ninja: Use 'console' pool for CMake re-run if possible (#14915)
The pre-defined 'console' pool is a non-buffered pool that runs with a
depth of 1.  CMake re-run cannot be run concurrently and it will
eventually output something.  A non-buffered pool allows to get it as
soon as possible

Also, generate the minimal required version of Ninja in the build file.
2014-10-03 08:48:47 -04:00
Brad King f5c0efdbe4 cmGlobalGenerator: Create a non-virtual 'DoGenerate' method
Make the virtual 'Generate' method protected.  Make 'DoGenerate'
the main entry point to generation.  This gives cmGlobalGenerator
a chance to do some early operations before the individual
generator-specific implementations take over.
2014-07-22 15:05:36 -04:00