tools: add compile_commands.json gyp generator

this is a re-base of the gyp part of 3c46bb9 after bumping GYP version to https://chromium.googlesource.com/external/gyp/+/eb296f67da078ec01f5e3a9ea9cdc6d26d680161 Original-Review-By: James M Snell <[email protected]> Ref: #7986 PR-URL: #12450 Reviewed-By: João Reis <[email protected]>

Author: bnoordhuis

tools/gyp/pylib/gyp/generator/compile_commands_json.py

@@ -0,0 +1,115 @@
+# Copyright (c) 2016 Ben Noordhuis <[email protected]>. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+importgyp.common
+importgyp.xcode_emulation
+importjson
+importos
+
+generator_additional_non_configuration_keys= []
+generator_additional_path_sections= []
+generator_extra_sources_for_rules= []
+generator_filelist_paths=None
+generator_supports_multiple_toolsets=True
+generator_wants_sorted_dependencies=False
+
+# Lifted from make.py. The actual values don't matter much.
+generator_default_variables={
+'CONFIGURATION_NAME': '$(BUILDTYPE)',
+'EXECUTABLE_PREFIX': '',
+'EXECUTABLE_SUFFIX': '',
+'INTERMEDIATE_DIR': '$(obj).$(TOOLSET)/$(TARGET)/geni',
+'PRODUCT_DIR': '$(builddir)',
+'RULE_INPUT_DIRNAME': '%(INPUT_DIRNAME)s',
+'RULE_INPUT_EXT': '$(suffix $<)',
+'RULE_INPUT_NAME': '$(notdir $<)',
+'RULE_INPUT_PATH': '$(abspath $<)',
+'RULE_INPUT_ROOT': '%(INPUT_ROOT)s',
+'SHARED_INTERMEDIATE_DIR': '$(obj)/gen',
+'SHARED_LIB_PREFIX': 'lib',
+'STATIC_LIB_PREFIX': 'lib',
+'STATIC_LIB_SUFFIX': '.a',
+}
+
+
+defIsMac(params):
+return'mac'==gyp.common.GetFlavor(params)
+
+
+defCalculateVariables(default_variables, params):
+default_variables.setdefault('OS', gyp.common.GetFlavor(params))
+
+
+defAddCommandsForTarget(cwd, target, params, per_config_commands):
+output_dir=params['generator_flags']['output_dir']
+forconfiguration_name, configurationintarget['configurations'].iteritems():
+builddir_name=os.path.join(output_dir, configuration_name)
+
+ifIsMac(params):
+xcode_settings=gyp.xcode_emulation.XcodeSettings(target)
+cflags=xcode_settings.GetCflags(configuration_name)
+cflags_c=xcode_settings.GetCflagsC(configuration_name)
+cflags_cc=xcode_settings.GetCflagsCC(configuration_name)
+else:
+cflags=configuration.get('cflags', [])
+cflags_c=configuration.get('cflags_c', [])
+cflags_cc=configuration.get('cflags_cc', [])
+
+cflags_c=cflags+cflags_c
+cflags_cc=cflags+cflags_cc
+
+defines=configuration.get('defines', [])
+defines= ['-D'+sforsindefines]
+
+# TODO(bnoordhuis) Handle generated source files.
+sources=target.get('sources', [])
+sources= [sforsinsourcesifs.endswith('.c') ors.endswith('.cc')]
+
+defresolve(filename):
+returnos.path.abspath(os.path.join(cwd, filename))
+
+# TODO(bnoordhuis) Handle generated header files.
+include_dirs=configuration.get('include_dirs', [])
+include_dirs= [sforsininclude_dirsifnots.startswith('$(obj)')]
+includes= ['-I'+resolve(s) forsininclude_dirs]
+
+defines=gyp.common.EncodePOSIXShellList(defines)
+includes=gyp.common.EncodePOSIXShellList(includes)
+cflags_c=gyp.common.EncodePOSIXShellList(cflags_c)
+cflags_cc=gyp.common.EncodePOSIXShellList(cflags_cc)
+
+commands=per_config_commands.setdefault(configuration_name, [])
+forsourceinsources:
+file=resolve(source)
+isc=source.endswith('.c')
+cc='cc'ifiscelse'c++'
+cflags=cflags_cifiscelsecflags_cc
+command=' '.join((cc, defines, includes, cflags,
+'-c', gyp.common.EncodePOSIXShellArgument(file)))
+commands.append(dict(command=command, directory=output_dir, file=file))
+
+
+defGenerateOutput(target_list, target_dicts, data, params):
+per_config_commands={}
+forqualified_target, targetintarget_dicts.iteritems():
+build_file, target_name, toolset= (
+gyp.common.ParseQualifiedTarget(qualified_target))
+ifIsMac(params):
+settings=data[build_file]
+gyp.xcode_emulation.MergeGlobalXcodeSettingsToSpec(settings, target)
+cwd=os.path.dirname(build_file)
+AddCommandsForTarget(cwd, target, params, per_config_commands)
+
+output_dir=params['generator_flags']['output_dir']
+forconfiguration_name, commandsinper_config_commands.iteritems():
+filename=os.path.join(output_dir,
+configuration_name,
+'compile_commands.json')
+gyp.common.EnsureDirExists(filename)
+fp=open(filename, 'w')
+json.dump(commands, fp=fp, indent=0, check_circular=False)
+
+
+defPerformBuild(data, configurations, params):
+pass