diff options
Diffstat (limited to 'lib/python2.7/distutils/command/config.py')
| -rw-r--r-- | lib/python2.7/distutils/command/config.py | 357 |
1 files changed, 0 insertions, 357 deletions
diff --git a/lib/python2.7/distutils/command/config.py b/lib/python2.7/distutils/command/config.py deleted file mode 100644 index b084913..0000000 --- a/lib/python2.7/distutils/command/config.py +++ /dev/null @@ -1,357 +0,0 @@ -"""distutils.command.config - -Implements the Distutils 'config' command, a (mostly) empty command class -that exists mainly to be sub-classed by specific module distributions and -applications. The idea is that while every "config" command is different, -at least they're all named the same, and users always see "config" in the -list of standard commands. Also, this is a good place to put common -configure-like tasks: "try to compile this C code", or "figure out where -this header file lives". -""" - -__revision__ = "$Id$" - -import os -import re - -from distutils.core import Command -from distutils.errors import DistutilsExecError -from distutils.sysconfig import customize_compiler -from distutils import log - -LANG_EXT = {'c': '.c', 'c++': '.cxx'} - -class config(Command): - - description = "prepare to build" - - user_options = [ - ('compiler=', None, - "specify the compiler type"), - ('cc=', None, - "specify the compiler executable"), - ('include-dirs=', 'I', - "list of directories to search for header files"), - ('define=', 'D', - "C preprocessor macros to define"), - ('undef=', 'U', - "C preprocessor macros to undefine"), - ('libraries=', 'l', - "external C libraries to link with"), - ('library-dirs=', 'L', - "directories to search for external C libraries"), - - ('noisy', None, - "show every action (compile, link, run, ...) taken"), - ('dump-source', None, - "dump generated source files before attempting to compile them"), - ] - - - # The three standard command methods: since the "config" command - # does nothing by default, these are empty. - - def initialize_options(self): - self.compiler = None - self.cc = None - self.include_dirs = None - self.libraries = None - self.library_dirs = None - - # maximal output for now - self.noisy = 1 - self.dump_source = 1 - - # list of temporary files generated along-the-way that we have - # to clean at some point - self.temp_files = [] - - def finalize_options(self): - if self.include_dirs is None: - self.include_dirs = self.distribution.include_dirs or [] - elif isinstance(self.include_dirs, str): - self.include_dirs = self.include_dirs.split(os.pathsep) - - if self.libraries is None: - self.libraries = [] - elif isinstance(self.libraries, str): - self.libraries = [self.libraries] - - if self.library_dirs is None: - self.library_dirs = [] - elif isinstance(self.library_dirs, str): - self.library_dirs = self.library_dirs.split(os.pathsep) - - def run(self): - pass - - - # Utility methods for actual "config" commands. The interfaces are - # loosely based on Autoconf macros of similar names. Sub-classes - # may use these freely. - - def _check_compiler(self): - """Check that 'self.compiler' really is a CCompiler object; - if not, make it one. - """ - # We do this late, and only on-demand, because this is an expensive - # import. - from distutils.ccompiler import CCompiler, new_compiler - if not isinstance(self.compiler, CCompiler): - self.compiler = new_compiler(compiler=self.compiler, - dry_run=self.dry_run, force=1) - customize_compiler(self.compiler) - if self.include_dirs: - self.compiler.set_include_dirs(self.include_dirs) - if self.libraries: - self.compiler.set_libraries(self.libraries) - if self.library_dirs: - self.compiler.set_library_dirs(self.library_dirs) - - - def _gen_temp_sourcefile(self, body, headers, lang): - filename = "_configtest" + LANG_EXT[lang] - file = open(filename, "w") - if headers: - for header in headers: - file.write("#include <%s>\n" % header) - file.write("\n") - file.write(body) - if body[-1] != "\n": - file.write("\n") - file.close() - return filename - - def _preprocess(self, body, headers, include_dirs, lang): - src = self._gen_temp_sourcefile(body, headers, lang) - out = "_configtest.i" - self.temp_files.extend([src, out]) - self.compiler.preprocess(src, out, include_dirs=include_dirs) - return (src, out) - - def _compile(self, body, headers, include_dirs, lang): - src = self._gen_temp_sourcefile(body, headers, lang) - if self.dump_source: - dump_file(src, "compiling '%s':" % src) - (obj,) = self.compiler.object_filenames([src]) - self.temp_files.extend([src, obj]) - self.compiler.compile([src], include_dirs=include_dirs) - return (src, obj) - - def _link(self, body, headers, include_dirs, libraries, library_dirs, - lang): - (src, obj) = self._compile(body, headers, include_dirs, lang) - prog = os.path.splitext(os.path.basename(src))[0] - self.compiler.link_executable([obj], prog, - libraries=libraries, - library_dirs=library_dirs, - target_lang=lang) - - if self.compiler.exe_extension is not None: - prog = prog + self.compiler.exe_extension - self.temp_files.append(prog) - - return (src, obj, prog) - - def _clean(self, *filenames): - if not filenames: - filenames = self.temp_files - self.temp_files = [] - log.info("removing: %s", ' '.join(filenames)) - for filename in filenames: - try: - os.remove(filename) - except OSError: - pass - - - # XXX these ignore the dry-run flag: what to do, what to do? even if - # you want a dry-run build, you still need some sort of configuration - # info. My inclination is to make it up to the real config command to - # consult 'dry_run', and assume a default (minimal) configuration if - # true. The problem with trying to do it here is that you'd have to - # return either true or false from all the 'try' methods, neither of - # which is correct. - - # XXX need access to the header search path and maybe default macros. - - def try_cpp(self, body=None, headers=None, include_dirs=None, lang="c"): - """Construct a source file from 'body' (a string containing lines - of C/C++ code) and 'headers' (a list of header files to include) - and run it through the preprocessor. Return true if the - preprocessor succeeded, false if there were any errors. - ('body' probably isn't of much use, but what the heck.) - """ - from distutils.ccompiler import CompileError - self._check_compiler() - ok = 1 - try: - self._preprocess(body, headers, include_dirs, lang) - except CompileError: - ok = 0 - - self._clean() - return ok - - def search_cpp(self, pattern, body=None, headers=None, include_dirs=None, - lang="c"): - """Construct a source file (just like 'try_cpp()'), run it through - the preprocessor, and return true if any line of the output matches - 'pattern'. 'pattern' should either be a compiled regex object or a - string containing a regex. If both 'body' and 'headers' are None, - preprocesses an empty file -- which can be useful to determine the - symbols the preprocessor and compiler set by default. - """ - self._check_compiler() - src, out = self._preprocess(body, headers, include_dirs, lang) - - if isinstance(pattern, str): - pattern = re.compile(pattern) - - file = open(out) - match = 0 - while 1: - line = file.readline() - if line == '': - break - if pattern.search(line): - match = 1 - break - - file.close() - self._clean() - return match - - def try_compile(self, body, headers=None, include_dirs=None, lang="c"): - """Try to compile a source file built from 'body' and 'headers'. - Return true on success, false otherwise. - """ - from distutils.ccompiler import CompileError - self._check_compiler() - try: - self._compile(body, headers, include_dirs, lang) - ok = 1 - except CompileError: - ok = 0 - - log.info(ok and "success!" or "failure.") - self._clean() - return ok - - def try_link(self, body, headers=None, include_dirs=None, libraries=None, - library_dirs=None, lang="c"): - """Try to compile and link a source file, built from 'body' and - 'headers', to executable form. Return true on success, false - otherwise. - """ - from distutils.ccompiler import CompileError, LinkError - self._check_compiler() - try: - self._link(body, headers, include_dirs, - libraries, library_dirs, lang) - ok = 1 - except (CompileError, LinkError): - ok = 0 - - log.info(ok and "success!" or "failure.") - self._clean() - return ok - - def try_run(self, body, headers=None, include_dirs=None, libraries=None, - library_dirs=None, lang="c"): - """Try to compile, link to an executable, and run a program - built from 'body' and 'headers'. Return true on success, false - otherwise. - """ - from distutils.ccompiler import CompileError, LinkError - self._check_compiler() - try: - src, obj, exe = self._link(body, headers, include_dirs, - libraries, library_dirs, lang) - self.spawn([exe]) - ok = 1 - except (CompileError, LinkError, DistutilsExecError): - ok = 0 - - log.info(ok and "success!" or "failure.") - self._clean() - return ok - - - # -- High-level methods -------------------------------------------- - # (these are the ones that are actually likely to be useful - # when implementing a real-world config command!) - - def check_func(self, func, headers=None, include_dirs=None, - libraries=None, library_dirs=None, decl=0, call=0): - - """Determine if function 'func' is available by constructing a - source file that refers to 'func', and compiles and links it. - If everything succeeds, returns true; otherwise returns false. - - The constructed source file starts out by including the header - files listed in 'headers'. If 'decl' is true, it then declares - 'func' (as "int func()"); you probably shouldn't supply 'headers' - and set 'decl' true in the same call, or you might get errors about - a conflicting declarations for 'func'. Finally, the constructed - 'main()' function either references 'func' or (if 'call' is true) - calls it. 'libraries' and 'library_dirs' are used when - linking. - """ - - self._check_compiler() - body = [] - if decl: - body.append("int %s ();" % func) - body.append("int main () {") - if call: - body.append(" %s();" % func) - else: - body.append(" %s;" % func) - body.append("}") - body = "\n".join(body) + "\n" - - return self.try_link(body, headers, include_dirs, - libraries, library_dirs) - - # check_func () - - def check_lib(self, library, library_dirs=None, headers=None, - include_dirs=None, other_libraries=[]): - """Determine if 'library' is available to be linked against, - without actually checking that any particular symbols are provided - by it. 'headers' will be used in constructing the source file to - be compiled, but the only effect of this is to check if all the - header files listed are available. Any libraries listed in - 'other_libraries' will be included in the link, in case 'library' - has symbols that depend on other libraries. - """ - self._check_compiler() - return self.try_link("int main (void) { }", - headers, include_dirs, - [library]+other_libraries, library_dirs) - - def check_header(self, header, include_dirs=None, library_dirs=None, - lang="c"): - """Determine if the system header file named by 'header_file' - exists and can be found by the preprocessor; return true if so, - false otherwise. - """ - return self.try_cpp(body="/* No body */", headers=[header], - include_dirs=include_dirs) - - -def dump_file(filename, head=None): - """Dumps a file content into log.info. - - If head is not None, will be dumped before the file content. - """ - if head is None: - log.info('%s' % filename) - else: - log.info(head) - file = open(filename) - try: - log.info(file.read()) - finally: - file.close() |