250 lines
8.6 KiB
Python
250 lines
8.6 KiB
Python
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# Copyright (c) 2014 The Chromium Embedded Framework Authors. All rights
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# reserved. Use of this source code is governed by a BSD-style license that
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# can be found in the LICENSE file.
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import os
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from file_util import *
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import sys
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# script directory.
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script_dir = os.path.dirname(__file__)
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# CEF root directory.
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cef_dir = os.path.abspath(os.path.join(script_dir, os.pardir))
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def get_files_for_variable(cmake_path, variables, variable):
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""" Returns the path values associated with |variable| and relative to the
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|cmake_path| directory. """
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if not variable in variables:
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raise Exception('Variable %s does not exist' % variable)
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# Cmake file directory.
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cmake_dirname = os.path.dirname(cmake_path) + '/'
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# Return path values relative to the cmake file directory.
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# Example 1:
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# cmake file = "/path/to/libcef_dll/CMakeLists.txt"
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# include path = "/path/to/libcef_dll/wrapper/cef_browser_info_map.h"
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# return path = "wrapper/cef_browser_info_map.h"
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# Example 2:
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# cmake file = "/path/to/libcef_dll/CMakeLists.txt"
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# include path = "/path/to/include/internal/cef_export.h"
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# return path = "../include/internal/cef_export.h"
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new_paths = []
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paths = variables[variable]
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for path in paths:
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if path[0] == '<':
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# Skip gyp include variables
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continue
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abspath = os.path.join(cef_dir, path)
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newpath = normalize_path(os.path.relpath(abspath, cmake_dirname))
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new_paths.append(newpath)
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return new_paths
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def format_cmake_set(name, values):
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result = 'set(%s\n' % name
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for value in values:
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result += ' %s\n' % value
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return result + ' )\n'
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def format_cmake_group(cmake_path, name, files, platform_sep, append_macro):
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platforms = {}
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common = []
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# Folder will be the cmake parent directory name combined with the path to
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# first file in the files list.
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# Example 1:
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# cmake file = "/path/to/libcef_dll/CMakeLists.txt"
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# include path = "wrapper/cef_browser_info_map.h"
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# folder = "libcef_dll\\\\wrapper"
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# Example 2:
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# cmake file = "/path/to/libcef_dll/CMakeLists.txt"
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# include path = "../include/internal/cef_export.h"
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# folder = "include\\\\internal"
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folder = os.path.basename(os.path.dirname(cmake_path))
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folder = os.path.dirname(os.path.normpath(os.path.join(folder, files[0])))
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folder = normalize_path(folder).replace('/', '\\\\\\\\')
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# Group the files by platform.
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for file in files:
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parts = file.split(platform_sep)
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file = parts[0]
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if len(parts) > 1:
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# Add the file under the platform.
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platform = parts[1]
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if not platform in platforms:
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platforms[platform] = []
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platforms[platform].append(file)
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else:
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common.append(file)
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result = ''
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if len(common) > 0:
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result += format_cmake_set(name, common)
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if len(platforms) > 0:
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keys = sorted(platforms.keys())
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for key in keys:
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result += format_cmake_set(name + '_' + key, platforms[key])
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result += '%s(%s)\n' % (append_macro, name)
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result += 'source_group(%s FILES ${%s})\n\n' % (folder, name)
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return result
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def format_cmake_library(name, group_names):
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result = 'add_library(%s\n' % name
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for group in group_names:
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result += ' ${%s}\n' % group
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return result + ' )\n\n'
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def process_cmake_template_segment(segment, segment_ct, cmake_path, variables):
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prefix = None
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library = None
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set = None
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includes = []
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suffix = '_SRCS' # Appended to each group name before the platform name.
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platform_sep = ':' # Used to separate value from platform name.
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append_macro = 'APPEND_PLATFORM_SOURCES' # CMake macro name.
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# Extract values from |segment|. Example |segment| contents:
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# 'prefix': 'cefsimple',
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# 'includes': [
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# 'cefsimple_sources_common',
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# 'cefsimple_sources_win:WINDOWS',
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# 'cefsimple_sources_mac:MACOSX',
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# 'cefsimple_sources_linux:LINUX',
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# ],
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values = eval('{' + segment + '}', {'__builtins__': None}, None)
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if 'prefix' in values:
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prefix = values['prefix']
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else:
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raise Exception('Missing prefix value in segment %d' % segment_ct)
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if 'library' in values:
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library = values['library']
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if 'set' in values:
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set = values['set']
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if 'append_macro' in values:
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append_macro = values['append_macro']
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if 'includes' in values and len(values['includes']) > 0:
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for include in values['includes']:
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parts = include.strip().split(platform_sep)
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files = get_files_for_variable(cmake_path, variables, parts[0])
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if len(parts) == 2:
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# Append the platform to each file path.
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files = [file + platform_sep + parts[1] for file in files]
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includes.extend(files)
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else:
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raise Exception('Missing includes value in segment %d' % segment_ct)
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# Sort the file paths alphabetically.
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includes.sort()
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# Group files by path.
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# For example, '../include/base/foo.h' and '../include/base/bar.h' will be
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# grouped as 'PREFIX_INCLUDE_BASE'.
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groups = {}
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for include in includes:
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paths = include.split('/')
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label = prefix
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for path in paths[0:-1]:
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if path == '..':
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continue
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label += '_' + path
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label = label.replace('.', '_').upper()
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if not label in groups:
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groups[label] = []
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groups[label].append(include)
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# Create the output results.
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result = ''
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keys = sorted(groups.keys())
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for key in keys:
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# Add a group of files that share the same path.
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result += format_cmake_group(cmake_path, key + suffix, groups[key], \
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platform_sep, append_macro)
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if not library is None:
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# Add the library declaration if requested.
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result += format_cmake_library(library, [key + suffix for key in keys])
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if not set is None:
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# Add the set declaration if requested.
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result += format_cmake_set(set, \
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['${' + key + suffix + '}' for key in keys])
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return result.strip()
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def process_cmake_template(input, output, variables, quiet = False):
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""" Reads the |input| template, parses variable substitution sections and
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writes |output|. """
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if not quiet:
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sys.stdout.write('Processing "%s" to "%s"...\n' % (input, output))
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if not os.path.exists(input):
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raise Exception('File %s does not exist' % input)
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cmake_path = normalize_path(os.path.abspath(input))
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template = read_file(cmake_path)
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delim_start = '{{'
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delim_end = '}}'
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# Process the template file, replacing segments delimited by |delim_start|
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# and |delim_end|.
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result = ''
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end = 0
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segment_ct = 0
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while True:
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start = template.find(delim_start, end)
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if start == -1:
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break
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result += template[end:start]
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end = template.find(delim_end, start + len(delim_start))
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if end == -1:
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break
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segment = template[start + len(delim_start):end]
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segment_ct = segment_ct + 1
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result += process_cmake_template_segment(segment, segment_ct, \
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cmake_path, variables)
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end += len(delim_end)
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result += template[end:]
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# Only write the output file if the contents have changed.
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changed = True
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if os.path.exists(output):
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existing = read_file(output)
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changed = result != existing
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if changed:
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write_file(output, result)
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def read_gypi_variables(source):
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""" Read the |source| gypi file and extract the variables section. """
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path = os.path.join(cef_dir, source + '.gypi')
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if not os.path.exists(path):
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raise Exception('File %s does not exist' % path)
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contents = eval_file(path)
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if not 'variables' in contents:
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raise Exception('File %s does not have a variables section' % path)
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return contents['variables']
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# File entry point.
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if __name__ == "__main__":
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# Verify that the correct number of command-line arguments are provided.
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if len(sys.argv) != 3:
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sys.stderr.write('Usage: '+sys.argv[0]+' <infile> <outfile>')
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sys.exit()
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# Read the gypi files and combine into a single dictionary.
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variables1 = read_gypi_variables('cef_paths')
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variables2 = read_gypi_variables('cef_paths2')
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variables = dict(variables1.items() + variables2.items())
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# Process the cmake template.
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process_cmake_template(sys.argv[1], sys.argv[2], variables)
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