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CMake/Source/cmCustomCommandGenerator.h

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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copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong.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 19:01:08 +00:00
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
Factor out common custom command generator The Makefile, VS, and Xcode generators previously duplicated some custom command line generation code. Factor this out into a separate class cmCustomCommandGenerator shared by all generators.
2010-12-07 21:23:38 +00:00
#ifndef cmCustomCommandGenerator_h
#define cmCustomCommandGenerator_h
Use quotes for non-system includes Automate with: git grep -l '#include <cm_' -- Source \ | xargs sed -i 's/#include <\(cm_.*\)>/#include "\1"/g' git grep -l '#include <cmsys/' -- Source \ | xargs sed -i 's/#include <\(cmsys\/.*\)>/#include "\1"/g' git grep -l '#include <cm[A-Z]' -- Source \ | xargs sed -i 's/#include <\(cm[A-Z].*\)>/#include "\1"/g'
2017-04-11 20:00:21 +00:00
#include "cmConfigure.h" // IWYU pragma: keep
add_custom_{command,target}: Add COMMAND_EXPAND_LISTS option This option allows lists generated by generator expressions to be expanded. Closes: #15935
2017-01-14 02:01:17 +00:00
#include "cmCustomCommandLines.h"
make sure to include cmConfigure.h before cmStandardIncludes.h
2016-09-01 18:05:48 +00:00
fix a load of include-what-you-use violations
2016-09-01 18:59:28 +00:00
#include <string>
#include <vector>
Factor out common custom command generator The Makefile, VS, and Xcode generators previously duplicated some custom command line generation code. Factor this out into a separate class cmCustomCommandGenerator shared by all generators.
2010-12-07 21:23:38 +00:00
class cmCustomCommand;
Introduce "generator expression" syntax to custom commands (#11209) Evaluate in the COMMAND arguments of custom commands the generator expression syntax introduced in commit d2e1f2b4 (Introduce "generator expressions" to add_test, 2009-08-11). These expressions have a syntax like $<TARGET_FILE:mytarget> and are evaluated during build system generation. This syntax allows per-configuration target output files to be referenced in custom command lines.
2010-12-08 21:13:07 +00:00
class cmGeneratorExpression;
fix a load of include-what-you-use violations
2016-09-01 18:59:28 +00:00
class cmLocalGenerator;
Factor out common custom command generator The Makefile, VS, and Xcode generators previously duplicated some custom command line generation code. Factor this out into a separate class cmCustomCommandGenerator shared by all generators.
2010-12-07 21:23:38 +00:00
class cmCustomCommandGenerator
{
cmCustomCommand const& CC;
stringapi: Pass configuration names as strings
2014-02-10 03:48:34 +00:00
std::string Config;
cmCustomCommandGenerator: Require cmLocalGenerator in API.
2015-07-25 15:52:10 +00:00
cmLocalGenerator* LG;
Factor out common custom command generator The Makefile, VS, and Xcode generators previously duplicated some custom command line generation code. Factor this out into a separate class cmCustomCommandGenerator shared by all generators.
2010-12-07 21:23:38 +00:00
bool OldStyle;
bool MakeVars;
Introduce "generator expression" syntax to custom commands (#11209) Evaluate in the COMMAND arguments of custom commands the generator expression syntax introduced in commit d2e1f2b4 (Introduce "generator expressions" to add_test, 2009-08-11). These expressions have a syntax like $<TARGET_FILE:mytarget> and are evaluated during build system generation. This syntax allows per-configuration target output files to be referenced in custom command lines.
2010-12-08 21:13:07 +00:00
cmGeneratorExpression* GE;
add_custom_command: Evaluate generator expressions in DEPENDS Rely on evaluation in cmCustomCommandGenerator for the generators. When tracing target dependencies, depend on the union of dependencies for all configurations.
2014-03-07 16:20:10 +00:00
mutable bool DependsDone;
mutable std::vector<std::string> Depends;
add_custom_{command,target}: Add COMMAND_EXPAND_LISTS option This option allows lists generated by generator expressions to be expanded. Closes: #15935
2017-01-14 02:01:17 +00:00
cmCustomCommandLines CommandLines;
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 14:34:04 +00:00
Fix custom command target substitution with CROSSCOMPILING_EMULATOR In commit v3.6.0-rc1~88^2 (CustomCommandGenerator: Add support for CROSSCOMPILING_EMULATOR, 2016-05-04) logic was introduced to substitute a target's `CROSSCOMPILING_EMULATOR` for argv0 in a custom command. However, it broke the case when the argv0 was a target name and now fails to expand the target name to its location at the same time as inserting the emulator. Fix the latter case. Inspired-by: Brian Maher <brian@brimworks.com> Closes: #16288
2016-10-28 15:33:02 +00:00
const char* GetCrossCompilingEmulator(unsigned int c) const;
const char* GetArgv0Location(unsigned int c) const;
Factor out common custom command generator The Makefile, VS, and Xcode generators previously duplicated some custom command line generation code. Factor this out into a separate class cmCustomCommandGenerator shared by all generators.
2010-12-07 21:23:38 +00:00
public:
stringapi: Pass configuration names as strings
2014-02-10 03:48:34 +00:00
cmCustomCommandGenerator(cmCustomCommand const& cc,
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 14:34:04 +00:00
const std::string& config, cmLocalGenerator* lg);
Introduce "generator expression" syntax to custom commands (#11209) Evaluate in the COMMAND arguments of custom commands the generator expression syntax introduced in commit d2e1f2b4 (Introduce "generator expressions" to add_test, 2009-08-11). These expressions have a syntax like $<TARGET_FILE:mytarget> and are evaluated during build system generation. This syntax allows per-configuration target output files to be referenced in custom command lines.
2010-12-08 21:13:07 +00:00
~cmCustomCommandGenerator();
Generalize cmCustomCommandGenerator to more fields Until now the cmCustomCommandGenerator was used only to compute the command lines of a custom command. Generalize it to get the comment, working directory, dependencies, and outputs of custom commands. Update use in all generators to support this.
2014-03-10 19:47:19 +00:00
cmCustomCommand const& GetCC() const { return this->CC; }
Factor out common custom command generator The Makefile, VS, and Xcode generators previously duplicated some custom command line generation code. Factor this out into a separate class cmCustomCommandGenerator shared by all generators.
2010-12-07 21:23:38 +00:00
unsigned int GetNumberOfCommands() const;
std::string GetCommand(unsigned int c) const;
void AppendArguments(unsigned int c, std::string& cmd) const;
Generalize cmCustomCommandGenerator to more fields Until now the cmCustomCommandGenerator was used only to compute the command lines of a custom command. Generalize it to get the comment, working directory, dependencies, and outputs of custom commands. Update use in all generators to support this.
2014-03-10 19:47:19 +00:00
const char* GetComment() const;
std::string GetWorkingDirectory() const;
std::vector<std::string> const& GetOutputs() const;
Add an option for explicit BYPRODUCTS of custom commands (#14963) A common idiom in CMake-based build systems is to have custom commands that generate files not listed explicitly as outputs so that these files do not have to be newer than the inputs. The file modification times of such "byproducts" are updated only when their content changes. Then other build rules can depend on the byproducts explicitly so that their dependents rebuild when the content of the original byproducts really does change. This "undeclared byproduct" approach is necessary for Makefile, VS, and Xcode build tools because if a byproduct were listed as an output of a rule then the rule would always rerun when the input is newer than the byproduct but the byproduct may never be updated. Ninja solves this problem by offering a 'restat' feature to check whether an output was really modified after running a rule and tracking the fact that it is up to date separately from its timestamp. However, Ninja also stats all dependencies up front and will only restat files that are listed as outputs of rules with the 'restat' option enabled. Therefore an undeclared byproduct that does not exist at the start of the build will be considered missing and the build will fail even if other dependencies would cause the byproduct to be available before its dependents build. CMake works around this limitation by adding 'phony' build rules for custom command dependencies in the build tree that do not have any explicit specification of what produces them. This is not optimal because it prevents Ninja from reporting an error when an input to a rule really is missing. A better approach is to allow projects to explicitly specify the byproducts of their custom commands so that no phony rules are needed for them. In order to work with the non-Ninja generators, the byproducts must be known separately from the outputs. Add a new "BYPRODUCTS" option to the add_custom_command and add_custom_target commands to specify byproducts explicitly. Teach the Ninja generator to specify byproducts as outputs of the custom commands. In the case of POST_BUILD, PRE_LINK, and PRE_BUILD events on targets that link, the byproducts must be specified as outputs of the link rule that runs the commands. Activate 'restat' for such rules so that Ninja knows it needs to check the byproducts, but not for link rules that have no byproducts.
2014-11-13 23:54:52 +00:00
std::vector<std::string> const& GetByproducts() const;
Generalize cmCustomCommandGenerator to more fields Until now the cmCustomCommandGenerator was used only to compute the command lines of a custom command. Generalize it to get the comment, working directory, dependencies, and outputs of custom commands. Update use in all generators to support this.
2014-03-10 19:47:19 +00:00
std::vector<std::string> const& GetDepends() const;
Factor out common custom command generator The Makefile, VS, and Xcode generators previously duplicated some custom command line generation code. Factor this out into a separate class cmCustomCommandGenerator shared by all generators.
2010-12-07 21:23:38 +00:00
};
#endif
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