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author | Jussi Pakkanen <jpakkane@gmail.com> | 2021-01-12 21:51:19 +0200 |
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committer | Jussi Pakkanen <jpakkane@gmail.com> | 2021-01-19 20:25:55 +0000 |
commit | 8133a7b9a4b8f0686fbc479aa2d64e41c85a979b (patch) | |
tree | 6d92574c0b8518e01e5447b3883a8fe3c5d00990 | |
parent | c64d4070763b2daf82a50a7b4f5b130b2bb91062 (diff) | |
download | meson-8133a7b9a4b8f0686fbc479aa2d64e41c85a979b.zip meson-8133a7b9a4b8f0686fbc479aa2d64e41c85a979b.tar.gz meson-8133a7b9a4b8f0686fbc479aa2d64e41c85a979b.tar.bz2 |
Keep buildtype the same even if user changes debug and/or optimization.
-rw-r--r-- | docs/markdown/FAQ.md | 33 | ||||
-rw-r--r-- | docs/markdown/snippets/buildtyperemains.md | 10 | ||||
-rw-r--r-- | mesonbuild/coredata.py | 48 | ||||
-rw-r--r-- | mesonbuild/mconf.py | 11 | ||||
-rwxr-xr-x | run_unittests.py | 44 |
5 files changed, 86 insertions, 60 deletions
diff --git a/docs/markdown/FAQ.md b/docs/markdown/FAQ.md index 7a41443..4ea4d8d 100644 --- a/docs/markdown/FAQ.md +++ b/docs/markdown/FAQ.md @@ -500,3 +500,36 @@ meson -Dcpp_eh=none -Dcpp_rtti=false <other options> ``` The RTTI option is only available since Meson version 0.53.0. + +## Should I check for `buildtype` or individual options like `debug` in my build files? + +This depends highly on what you actually need to happen. The +´buildtype` option is meant do describe the current build's +_intent_. That is, what it will be used for. Individual options are +for determining what the exact state is. This becomes clearer with a +few examples. + +Suppose you have a source file that is known to miscompile when using +`-O3` and requires a workaround. Then you'd write something like this: + +```meson +if get_option('optimization') == '3' + add_project_arguments('-DOPTIMIZATION_WORKAROUND', ...) +endif +``` + +On the other hand if your project has extra logging and sanity checks +that you would like to be enabled during the day to day development +work (which uses the `debug` buildtype), you'd do this instead: + +```meson +if get_option('buildtype') == 'debug' + add_project_arguments('-DENABLE_EXTRA_CHECKS', ...) +endif +``` + +In this way the extra options are automatically used during +development but are not compiled in release builds. Note that (since +Meson 0.57.0) you can set optimization to, say, 2 in your debug builds +if you want to. If you tried to set this flag based on optimization +level, it would fail in this case. diff --git a/docs/markdown/snippets/buildtyperemains.md b/docs/markdown/snippets/buildtyperemains.md new file mode 100644 index 0000000..4eb6243 --- /dev/null +++ b/docs/markdown/snippets/buildtyperemains.md @@ -0,0 +1,10 @@ +## Buildtype remains even if dependent options are changed + +Setting the `buildtype' option to a value sets the `debug` and +`optimization` options to predefined values. Traditionally setting the +options to other values would then change the buildtype to `custom`. +This is confusing and means that you can't use, for example, debug +level `g` in `debug` buildtype even though it would make sense under +many circumstances. Starting with the buildtype is only changed when +the user explicitly sets it. Setting the build type sets the other +options to their default values as before.
\ No newline at end of file diff --git a/mesonbuild/coredata.py b/mesonbuild/coredata.py index 39da863..211efec 100644 --- a/mesonbuild/coredata.py +++ b/mesonbuild/coredata.py @@ -582,8 +582,35 @@ class CoreData: if key.name == 'buildtype': self._set_others_from_buildtype(value) - elif key.name in {'debug', 'optimization'}: - self._set_buildtype_from_others() + + def get_nondefault_buildtype_args(self): + result= [] + value = self.options[OptionKey('buildtype')].value + if value == 'plain': + opt = '0' + debug = False + elif value == 'debug': + opt = '0' + debug = True + elif value == 'debugoptimized': + opt = '2' + debug = True + elif value == 'release': + opt = '3' + debug = False + elif value == 'minsize': + opt = 's' + debug = True + else: + assert(value == 'custom') + return [] + actual_opt = self.options[OptionKey('optimization')].value + actual_debug = self.options[OptionKey('debug')].value + if actual_opt != opt: + result.append(('optimization', actual_opt, opt)) + if actual_debug != debug: + result.append(('debug', actual_debug, debug)) + return result def _set_others_from_buildtype(self, value: str) -> None: if value == 'plain': @@ -607,23 +634,6 @@ class CoreData: self.options[OptionKey('optimization')].set_value(opt) self.options[OptionKey('debug')].set_value(debug) - def _set_buildtype_from_others(self) -> None: - opt = self.options[OptionKey('optimization')].value - debug = self.options[OptionKey('debug')].value - if opt == '0' and not debug: - mode = 'plain' - elif opt == '0' and debug: - mode = 'debug' - elif opt == '2' and debug: - mode = 'debugoptimized' - elif opt == '3' and not debug: - mode = 'release' - elif opt == 's' and debug: - mode = 'minsize' - else: - mode = 'custom' - self.options[OptionKey('buildtype')].set_value(mode) - @staticmethod def is_per_machine_option(optname: OptionKey) -> bool: if optname.name in BUILTIN_OPTIONS_PER_MACHINE: diff --git a/mesonbuild/mconf.py b/mesonbuild/mconf.py index 686a336..5233d88 100644 --- a/mesonbuild/mconf.py +++ b/mesonbuild/mconf.py @@ -243,6 +243,17 @@ class Conf: print('') print_default_values_warning() + self.print_nondefault_buildtype_options() + + def print_nondefault_buildtype_options(self): + mismatching = self.coredata.get_nondefault_buildtype_args() + if not mismatching: + return + print("\nThe following option(s) have a different value than the build type default\n") + print(f' current default') + for m in mismatching: + print(f'{m[0]:21}{m[1]:10}{m[2]:10}') + def run(options): coredata.parse_cmd_line_options(options) builddir = os.path.abspath(os.path.realpath(options.builddir)) diff --git a/run_unittests.py b/run_unittests.py index c89b822..3ad0a7e 100755 --- a/run_unittests.py +++ b/run_unittests.py @@ -3929,51 +3929,13 @@ class AllPlatformTests(BasePlatformTests): self.setconf('-Ddebug=false') opts = self.get_opts_as_dict() self.assertEqual(opts['debug'], False) - self.assertEqual(opts['buildtype'], 'plain') + self.assertEqual(opts['buildtype'], 'debug') self.assertEqual(opts['optimization'], '0') - - # Setting optimizations to 3 should cause buildtype - # to go to release mode. - self.setconf('-Doptimization=3') + self.setconf('-Doptimization=g') opts = self.get_opts_as_dict() - self.assertEqual(opts['buildtype'], 'release') self.assertEqual(opts['debug'], False) - self.assertEqual(opts['optimization'], '3') - - # Going to debug build type should reset debugging - # and optimization - self.setconf('-Dbuildtype=debug') - opts = self.get_opts_as_dict() self.assertEqual(opts['buildtype'], 'debug') - self.assertEqual(opts['debug'], True) - self.assertEqual(opts['optimization'], '0') - - # Command-line parsing of buildtype settings should be the same as - # setting with `meson configure`. - # - # Setting buildtype should set optimization/debug - self.new_builddir() - self.init(testdir, extra_args=['-Dbuildtype=debugoptimized']) - opts = self.get_opts_as_dict() - self.assertEqual(opts['debug'], True) - self.assertEqual(opts['optimization'], '2') - self.assertEqual(opts['buildtype'], 'debugoptimized') - # Setting optimization/debug should set buildtype - self.new_builddir() - self.init(testdir, extra_args=['-Doptimization=2', '-Ddebug=true']) - opts = self.get_opts_as_dict() - self.assertEqual(opts['debug'], True) - self.assertEqual(opts['optimization'], '2') - self.assertEqual(opts['buildtype'], 'debugoptimized') - # Setting both buildtype and debug on the command-line should work, and - # should warn not to do that. Also test that --debug is parsed as -Ddebug=true - self.new_builddir() - out = self.init(testdir, extra_args=['-Dbuildtype=debugoptimized', '--debug']) - self.assertRegex(out, 'Recommend using either.*buildtype.*debug.*redundant') - opts = self.get_opts_as_dict() - self.assertEqual(opts['debug'], True) - self.assertEqual(opts['optimization'], '2') - self.assertEqual(opts['buildtype'], 'debugoptimized') + self.assertEqual(opts['optimization'], 'g') @skipIfNoPkgconfig @unittest.skipIf(is_windows(), 'Help needed with fixing this test on windows') |