forked from xuos/xiuos
362 lines
13 KiB
Python
362 lines
13 KiB
Python
#!/usr/bin/env python
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# Copyright JS Foundation and other contributors, http://js.foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import argparse
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import fnmatch
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import json
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import logging
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import os
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import re
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import shutil
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ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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JERRY_CORE = os.path.join(ROOT_DIR, 'jerry-core')
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JERRY_PORT = os.path.join(ROOT_DIR, 'jerry-port', 'default')
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JERRY_MATH = os.path.join(ROOT_DIR, 'jerry-math')
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class Amalgamator(object):
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# pylint: disable=too-many-instance-attributes
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_RE_INCLUDE = re.compile(r'\s*#include ("|<)(.*?)("|>)\n$')
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def __init__(self, h_files, extra_includes=(), remove_includes=(), add_lineinfo=False):
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self._h_files = h_files
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self._extra_includes = extra_includes
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self._remove_includes = remove_includes
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self._add_lineinfo = add_lineinfo
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self._last_builtin = None
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self._processed = []
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self._output = []
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# The copyright will be loaded from the first input file
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self._copyright = {'lines': [], 'loaded': False}
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def _process_non_include(self, line, file_level):
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# Special case #2: Builtin include header name usage
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if line.strip() == "#include BUILTIN_INC_HEADER_NAME":
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assert self._last_builtin is not None, 'No previous BUILTIN_INC_HEADER_NAME definition'
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logging.debug('[%d] Detected usage of BUILTIN_INC_HEADER_NAME, including: "%s"',
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file_level, self._last_builtin)
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self.add_file(self._h_files[self._last_builtin])
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# return from the function as we have processed the included file
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return
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# Special case #1: Builtin include header name definition
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if line.startswith('#define BUILTIN_INC_HEADER_NAME '):
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# the line is in this format: #define BUILTIN_INC_HEADER_NAME "<filename>"
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self._last_builtin = line.split('"', 2)[1]
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logging.debug('[%d] Detected definition of BUILTIN_INC_HEADER_NAME: "%s"', file_level, self._last_builtin)
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# the line is not anything special, just push it into the output
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self._output.append(line)
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def _emit_lineinfo(self, line_number, filename):
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if not self._add_lineinfo:
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return
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normalized_path = repr(os.path.normpath(filename))[1:-1]
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line_info = '#line %d "%s"\n' % (line_number, normalized_path)
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if self._output and self._output[-1].startswith('#line'):
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# Avoid emitting multiple line infos in sequence, just overwrite the last one
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self._output[-1] = line_info
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else:
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self._output.append(line_info)
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def add_file(self, filename, file_level=0):
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if os.path.basename(filename) in self._processed:
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logging.warning('Tried to to process an already processed file: "%s"', filename)
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return
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if not file_level:
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logging.debug('Adding file: "%s"', filename)
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file_level += 1
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# mark the start of the new file in the output
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self._emit_lineinfo(1, filename)
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line_idx = 0
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with open(filename, 'r') as input_file:
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in_copyright = False
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for line in input_file:
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line_idx += 1
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if not in_copyright and line.startswith('/* Copyright '):
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in_copyright = True
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if not self._copyright['loaded']:
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self._copyright['lines'].append(line)
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continue
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if in_copyright:
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if not self._copyright['loaded']:
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self._copyright['lines'].append(line)
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if line.strip().endswith('*/'):
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in_copyright = False
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self._copyright['loaded'] = True
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# emit a line info so the line numbering can be tracked correctly
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self._emit_lineinfo(line_idx + 1, filename)
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continue
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# check if the line is an '#include' line
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match = self._RE_INCLUDE.match(line)
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if not match:
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# the line is not a header
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self._process_non_include(line, file_level)
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continue
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if match.group(1) == '<':
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# found a "global" include
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self._output.append(line)
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continue
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name = match.group(2)
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if name in self._remove_includes:
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logging.debug('[%d] Removing include line (%s:%d): %s',
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file_level, filename, line_idx, line.strip())
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# emit a line info so the line numbering can be tracked correctly
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self._emit_lineinfo(line_idx + 1, filename)
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continue
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if name not in self._h_files:
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logging.warning('[%d] Include not found (%s:%d): "%s"', file_level, filename, line_idx, name)
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self._output.append(line)
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continue
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if name in self._processed:
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logging.debug('[%d] Already included: "%s"', file_level, name)
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# emit a line info so the line numbering can be tracked correctly
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self._emit_lineinfo(line_idx + 1, filename)
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continue
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logging.debug('[%d] Including: "%s"', file_level, self._h_files[name])
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self.add_file(self._h_files[name], file_level)
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# mark the continuation of the current file in the output
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self._emit_lineinfo(line_idx + 1, filename)
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if not name.endswith('.inc.h'):
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# if the included file is not a "*.inc.h" file mark it as processed
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self._processed.append(name)
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file_level -= 1
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if not filename.endswith('.inc.h'):
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self._processed.append(os.path.basename(filename))
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def write_output(self, out_fp):
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for line in self._copyright['lines']:
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out_fp.write(line)
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for include in self._extra_includes:
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out_fp.write('#include "%s"\n' % include)
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for line in self._output:
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out_fp.write(line)
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def match_files(base_dir, pattern):
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"""
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Return the files matching the given pattern.
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:param base_dir: directory to search in
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:param pattern: file pattern to use
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:returns generator: the generator which iterates the matching file names
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"""
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for path, _, files in os.walk(base_dir):
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for name in files:
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if fnmatch.fnmatch(name, pattern):
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yield os.path.join(path, name)
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def collect_files(base_dir, pattern):
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"""
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Collect files in the provided base directory given a file pattern.
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Will collect all files in the base dir recursively.
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:param base_dir: directory to search in
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:param pattern: file pattern to use
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:returns dictionary: a dictionary file base name -> file path mapping
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"""
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name_mapping = {}
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for fname in match_files(base_dir, pattern):
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name = os.path.basename(fname)
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if name in name_mapping:
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logging.warning('Duplicate name detected: "%s" and "%s"', fname, name_mapping[name])
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continue
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name_mapping[name] = fname
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return name_mapping
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def amalgamate(base_dir, input_files=(), output_file=None,
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append_c_files=False, remove_includes=(), extra_includes=(),
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add_lineinfo=False):
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"""
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:param input_files: Main input source/header files
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:param output_file: Output source/header file
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:param append_c_files: Enable auto inclusion of c files under the base-dir
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:param add_lineinfo: Enable #line macro insertion into the generated sources
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"""
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logging.debug('Starting merge with args: %s', json.dumps(locals(), indent=4, sort_keys=True))
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h_files = collect_files(base_dir, '*.h')
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c_files = collect_files(base_dir, '*.c')
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for name in remove_includes:
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c_files.pop(name, '')
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h_files.pop(name, '')
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amalgam = Amalgamator(h_files, extra_includes, remove_includes, add_lineinfo)
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for input_file in input_files:
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amalgam.add_file(input_file)
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if append_c_files:
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# if the input file is in the C files list it should be removed to avoid
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# double inclusion of the file
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for input_file in input_files:
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input_name = os.path.basename(input_file)
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c_files.pop(input_name, '')
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# Add the C files in reverse order to make sure that builtins are
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# not at the beginning.
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for fname in sorted(c_files.values(), reverse=True):
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amalgam.add_file(fname)
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with open(output_file, 'w') as output:
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amalgam.write_output(output)
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def amalgamate_jerry_core(output_dir):
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amalgamate(
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base_dir=JERRY_CORE,
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input_files=[
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os.path.join(JERRY_CORE, 'api', 'jerry.c'),
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# Add the global built-in by default to include some common items
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# to avoid problems with common built-in headers
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os.path.join(JERRY_CORE, 'ecma', 'builtin-objects', 'ecma-builtins.c'),
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],
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output_file=os.path.join(output_dir, 'jerryscript.c'),
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append_c_files=True,
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remove_includes=[
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'jerryscript.h',
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'jerryscript-port.h',
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'jerryscript-compiler.h',
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'jerryscript-core.h',
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'jerryscript-debugger.h',
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'jerryscript-debugger-transport.h',
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'jerryscript-port.h',
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'jerryscript-snapshot.h',
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'config.h',
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],
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extra_includes=['jerryscript.h'],
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)
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amalgamate(
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base_dir=JERRY_CORE,
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input_files=[
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os.path.join(JERRY_CORE, 'include', 'jerryscript.h'),
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os.path.join(JERRY_CORE, 'include', 'jerryscript-debugger-transport.h'),
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],
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output_file=os.path.join(output_dir, 'jerryscript.h'),
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remove_includes=['config.h'],
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extra_includes=['jerryscript-config.h'],
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)
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shutil.copyfile(os.path.join(JERRY_CORE, 'config.h'),
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os.path.join(output_dir, 'jerryscript-config.h'))
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def amalgamate_jerry_port_default(output_dir):
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amalgamate(
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base_dir=JERRY_PORT,
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output_file=os.path.join(output_dir, 'jerryscript-port-default.c'),
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append_c_files=True,
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remove_includes=[
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'jerryscript-port.h',
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'jerryscript-port-default.h',
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'jerryscript-debugger.h',
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],
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extra_includes=[
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'jerryscript.h',
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'jerryscript-port-default.h',
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],
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)
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amalgamate(
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base_dir=JERRY_PORT,
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input_files=[os.path.join(JERRY_PORT, 'include', 'jerryscript-port-default.h')],
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output_file=os.path.join(output_dir, 'jerryscript-port-default.h'),
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remove_includes=[
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'jerryscript-port.h',
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'jerryscript.h',
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],
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extra_includes=['jerryscript.h'],
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)
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def amalgamate_jerry_math(output_dir):
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amalgamate(
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base_dir=JERRY_MATH,
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output_file=os.path.join(output_dir, 'jerryscript-math.c'),
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append_c_files=True,
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)
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shutil.copyfile(os.path.join(JERRY_MATH, 'include', 'math.h'),
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os.path.join(output_dir, 'math.h'))
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def main():
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parser = argparse.ArgumentParser(description='Generate amalgamated sources.')
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parser.add_argument('--jerry-core', action='store_true',
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help='amalgamate jerry-core files')
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parser.add_argument('--jerry-port-default', action='store_true',
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help='amalgamate jerry-port-default files')
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parser.add_argument('--jerry-math', action='store_true',
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help='amalgamate jerry-math files')
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parser.add_argument('--output-dir', metavar='DIR', default='amalgam',
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help='output dir (default: %(default)s)')
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parser.add_argument('--verbose', '-v', action='store_true',
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help='increase verbosity')
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args = parser.parse_args()
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if args.verbose:
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logging.basicConfig(level=logging.DEBUG)
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try:
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os.makedirs(args.output_dir)
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except os.error:
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pass
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if args.jerry_core:
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amalgamate_jerry_core(args.output_dir)
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if args.jerry_port_default:
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amalgamate_jerry_port_default(args.output_dir)
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if args.jerry_math:
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amalgamate_jerry_math(args.output_dir)
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if __name__ == '__main__':
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main()
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