107 lines
3.5 KiB
Python
107 lines
3.5 KiB
Python
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import contextlib
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from os.path import exists, join
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from os import getcwd, chdir, makedirs, walk, uname
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import shutil
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from fnmatch import fnmatch
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from tempfile import mkdtemp
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from pythonforandroid.logger import (logger, Err_Fore, error, info)
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build_platform = '{system}-{machine}'.format(
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system=uname()[0], machine=uname()[-1]).lower()
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"""the build platform in the format `system-machine`. We use
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this string to define the right build system when compiling some recipes or
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to get the right path for clang compiler"""
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@contextlib.contextmanager
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def current_directory(new_dir):
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cur_dir = getcwd()
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logger.info(''.join((Err_Fore.CYAN, '-> directory context ', new_dir,
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Err_Fore.RESET)))
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chdir(new_dir)
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yield
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logger.info(''.join((Err_Fore.CYAN, '<- directory context ', cur_dir,
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Err_Fore.RESET)))
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chdir(cur_dir)
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@contextlib.contextmanager
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def temp_directory():
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temp_dir = mkdtemp()
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try:
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logger.debug(''.join((Err_Fore.CYAN, ' + temp directory used ',
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temp_dir, Err_Fore.RESET)))
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yield temp_dir
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finally:
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shutil.rmtree(temp_dir)
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logger.debug(''.join((Err_Fore.CYAN, ' - temp directory deleted ',
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temp_dir, Err_Fore.RESET)))
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def ensure_dir(filename):
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if not exists(filename):
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makedirs(filename)
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def walk_valid_filens(base_dir, invalid_dir_names, invalid_file_patterns):
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"""Recursively walks all the files and directories in ``dirn``,
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ignoring directories that match any pattern in ``invalid_dirns``
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and files that patch any pattern in ``invalid_filens``.
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``invalid_dirns`` and ``invalid_filens`` should both be lists of
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strings to match. ``invalid_dir_patterns`` expects a list of
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invalid directory names, while ``invalid_file_patterns`` expects a
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list of glob patterns compared against the full filepath.
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File and directory paths are evaluated as full paths relative to ``dirn``.
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"""
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for dirn, subdirs, filens in walk(base_dir):
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# Remove invalid subdirs so that they will not be walked
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for i in reversed(range(len(subdirs))):
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subdir = subdirs[i]
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if subdir in invalid_dir_names:
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subdirs.pop(i)
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for filen in filens:
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for pattern in invalid_file_patterns:
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if fnmatch(filen, pattern):
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break
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else:
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yield join(dirn, filen)
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def load_source(module, filename):
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# Python 3.5+
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import importlib.util
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if hasattr(importlib.util, 'module_from_spec'):
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spec = importlib.util.spec_from_file_location(module, filename)
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mod = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(mod)
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return mod
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else:
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# Python 3.3 and 3.4:
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from importlib.machinery import SourceFileLoader
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return SourceFileLoader(module, filename).load_module()
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class BuildInterruptingException(Exception):
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def __init__(self, message, instructions=None):
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super().__init__(message, instructions)
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self.message = message
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self.instructions = instructions
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def handle_build_exception(exception):
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"""
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Handles a raised BuildInterruptingException by printing its error
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message and associated instructions, if any, then exiting.
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"""
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error('Build failed: {}'.format(exception.message))
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if exception.instructions is not None:
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info('Instructions: {}'.format(exception.instructions))
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exit(1)
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