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Diffstat (limited to 'Lib/packaging/command/install_dist.py')
| -rw-r--r-- | Lib/packaging/command/install_dist.py | 625 |
1 files changed, 625 insertions, 0 deletions
diff --git a/Lib/packaging/command/install_dist.py b/Lib/packaging/command/install_dist.py new file mode 100644 index 0000000..dfe6df2 --- /dev/null +++ b/Lib/packaging/command/install_dist.py @@ -0,0 +1,625 @@ +"""Main install command, which calls the other install_* commands.""" + +import sys +import os + +import sysconfig +from sysconfig import get_config_vars, get_paths, get_path, get_config_var + +from packaging import logger +from packaging.command.cmd import Command +from packaging.errors import PackagingPlatformError +from packaging.util import write_file +from packaging.util import convert_path, change_root, get_platform +from packaging.errors import PackagingOptionError + + +HAS_USER_SITE = True + + +class install_dist(Command): + + description = "install everything from build directory" + + user_options = [ + # Select installation scheme and set base director(y|ies) + ('prefix=', None, + "installation prefix"), + ('exec-prefix=', None, + "(Unix only) prefix for platform-specific files"), + ('home=', None, + "(Unix only) home directory to install under"), + + # Or just set the base director(y|ies) + ('install-base=', None, + "base installation directory (instead of --prefix or --home)"), + ('install-platbase=', None, + "base installation directory for platform-specific files " + + "(instead of --exec-prefix or --home)"), + ('root=', None, + "install everything relative to this alternate root directory"), + + # Or explicitly set the installation scheme + ('install-purelib=', None, + "installation directory for pure Python module distributions"), + ('install-platlib=', None, + "installation directory for non-pure module distributions"), + ('install-lib=', None, + "installation directory for all module distributions " + + "(overrides --install-purelib and --install-platlib)"), + + ('install-headers=', None, + "installation directory for C/C++ headers"), + ('install-scripts=', None, + "installation directory for Python scripts"), + ('install-data=', None, + "installation directory for data files"), + + # Byte-compilation options -- see install_lib.py for details, as + # these are duplicated from there (but only install_lib does + # anything with them). + ('compile', 'c', "compile .py to .pyc [default]"), + ('no-compile', None, "don't compile .py files"), + ('optimize=', 'O', + 'also compile with optimization: -O1 for "python -O", ' + '-O2 for "python -OO", and -O0 to disable [default: -O0]'), + + # Miscellaneous control options + ('force', 'f', + "force installation (overwrite any existing files)"), + ('skip-build', None, + "skip rebuilding everything (for testing/debugging)"), + + # Where to install documentation (eventually!) + #('doc-format=', None, "format of documentation to generate"), + #('install-man=', None, "directory for Unix man pages"), + #('install-html=', None, "directory for HTML documentation"), + #('install-info=', None, "directory for GNU info files"), + + # XXX use a name that makes clear this is the old format + ('record=', None, + "filename in which to record a list of installed files " + "(not PEP 376-compliant)"), + ('resources=', None, + "data files mapping"), + + # .dist-info related arguments, read by install_dist_info + ('no-distinfo', None, + "do not create a .dist-info directory"), + ('installer=', None, + "the name of the installer"), + ('requested', None, + "generate a REQUESTED file (i.e."), + ('no-requested', None, + "do not generate a REQUESTED file"), + ('no-record', None, + "do not generate a RECORD file"), + ] + + boolean_options = ['compile', 'force', 'skip-build', 'no-distinfo', + 'requested', 'no-record'] + + if HAS_USER_SITE: + user_options.append( + ('user', None, + "install in user site-packages directory [%s]" % + get_path('purelib', '%s_user' % os.name))) + + boolean_options.append('user') + + negative_opt = {'no-compile': 'compile', 'no-requested': 'requested'} + + def initialize_options(self): + # High-level options: these select both an installation base + # and scheme. + self.prefix = None + self.exec_prefix = None + self.home = None + if HAS_USER_SITE: + self.user = False + + # These select only the installation base; it's up to the user to + # specify the installation scheme (currently, that means supplying + # the --install-{platlib,purelib,scripts,data} options). + self.install_base = None + self.install_platbase = None + self.root = None + + # These options are the actual installation directories; if not + # supplied by the user, they are filled in using the installation + # scheme implied by prefix/exec-prefix/home and the contents of + # that installation scheme. + self.install_purelib = None # for pure module distributions + self.install_platlib = None # non-pure (dists w/ extensions) + self.install_headers = None # for C/C++ headers + self.install_lib = None # set to either purelib or platlib + self.install_scripts = None + self.install_data = None + if HAS_USER_SITE: + self.install_userbase = get_config_var('userbase') + self.install_usersite = get_path('purelib', '%s_user' % os.name) + + self.compile = None + self.optimize = None + + # These two are for putting non-packagized distributions into their + # own directory and creating a .pth file if it makes sense. + # 'extra_path' comes from the setup file; 'install_path_file' can + # be turned off if it makes no sense to install a .pth file. (But + # better to install it uselessly than to guess wrong and not + # install it when it's necessary and would be used!) Currently, + # 'install_path_file' is always true unless some outsider meddles + # with it. + self.extra_path = None + self.install_path_file = True + + # 'force' forces installation, even if target files are not + # out-of-date. 'skip_build' skips running the "build" command, + # handy if you know it's not necessary. 'warn_dir' (which is *not* + # a user option, it's just there so the bdist_* commands can turn + # it off) determines whether we warn about installing to a + # directory not in sys.path. + self.force = False + self.skip_build = False + self.warn_dir = True + + # These are only here as a conduit from the 'build' command to the + # 'install_*' commands that do the real work. ('build_base' isn't + # actually used anywhere, but it might be useful in future.) They + # are not user options, because if the user told the install + # command where the build directory is, that wouldn't affect the + # build command. + self.build_base = None + self.build_lib = None + + # Not defined yet because we don't know anything about + # documentation yet. + #self.install_man = None + #self.install_html = None + #self.install_info = None + + self.record = None + self.resources = None + + # .dist-info related options + self.no_distinfo = None + self.installer = None + self.requested = None + self.no_record = None + self.no_resources = None + + # -- Option finalizing methods ------------------------------------- + # (This is rather more involved than for most commands, + # because this is where the policy for installing third- + # party Python modules on various platforms given a wide + # array of user input is decided. Yes, it's quite complex!) + + def finalize_options(self): + # This method (and its pliant slaves, like 'finalize_unix()', + # 'finalize_other()', and 'select_scheme()') is where the default + # installation directories for modules, extension modules, and + # anything else we care to install from a Python module + # distribution. Thus, this code makes a pretty important policy + # statement about how third-party stuff is added to a Python + # installation! Note that the actual work of installation is done + # by the relatively simple 'install_*' commands; they just take + # their orders from the installation directory options determined + # here. + + # Check for errors/inconsistencies in the options; first, stuff + # that's wrong on any platform. + + if ((self.prefix or self.exec_prefix or self.home) and + (self.install_base or self.install_platbase)): + raise PackagingOptionError( + "must supply either prefix/exec-prefix/home or " + "install-base/install-platbase -- not both") + + if self.home and (self.prefix or self.exec_prefix): + raise PackagingOptionError( + "must supply either home or prefix/exec-prefix -- not both") + + if HAS_USER_SITE and self.user and ( + self.prefix or self.exec_prefix or self.home or + self.install_base or self.install_platbase): + raise PackagingOptionError( + "can't combine user with prefix/exec_prefix/home or " + "install_base/install_platbase") + + # Next, stuff that's wrong (or dubious) only on certain platforms. + if os.name != "posix": + if self.exec_prefix: + logger.warning( + '%s: exec-prefix option ignored on this platform', + self.get_command_name()) + self.exec_prefix = None + + # Now the interesting logic -- so interesting that we farm it out + # to other methods. The goal of these methods is to set the final + # values for the install_{lib,scripts,data,...} options, using as + # input a heady brew of prefix, exec_prefix, home, install_base, + # install_platbase, user-supplied versions of + # install_{purelib,platlib,lib,scripts,data,...}, and the + # INSTALL_SCHEME dictionary above. Phew! + + self.dump_dirs("pre-finalize_{unix,other}") + + if os.name == 'posix': + self.finalize_unix() + else: + self.finalize_other() + + self.dump_dirs("post-finalize_{unix,other}()") + + # Expand configuration variables, tilde, etc. in self.install_base + # and self.install_platbase -- that way, we can use $base or + # $platbase in the other installation directories and not worry + # about needing recursive variable expansion (shudder). + + py_version = sys.version.split()[0] + prefix, exec_prefix, srcdir, projectbase = get_config_vars( + 'prefix', 'exec_prefix', 'srcdir', 'projectbase') + + metadata = self.distribution.metadata + self.config_vars = { + 'dist_name': metadata['Name'], + 'dist_version': metadata['Version'], + 'dist_fullname': metadata.get_fullname(), + 'py_version': py_version, + 'py_version_short': py_version[:3], + 'py_version_nodot': py_version[:3:2], + 'sys_prefix': prefix, + 'prefix': prefix, + 'sys_exec_prefix': exec_prefix, + 'exec_prefix': exec_prefix, + 'srcdir': srcdir, + 'projectbase': projectbase, + } + + if HAS_USER_SITE: + self.config_vars['userbase'] = self.install_userbase + self.config_vars['usersite'] = self.install_usersite + + self.expand_basedirs() + + self.dump_dirs("post-expand_basedirs()") + + # Now define config vars for the base directories so we can expand + # everything else. + self.config_vars['base'] = self.install_base + self.config_vars['platbase'] = self.install_platbase + + # Expand "~" and configuration variables in the installation + # directories. + self.expand_dirs() + + self.dump_dirs("post-expand_dirs()") + + # Create directories in the home dir: + if HAS_USER_SITE and self.user: + self.create_home_path() + + # Pick the actual directory to install all modules to: either + # install_purelib or install_platlib, depending on whether this + # module distribution is pure or not. Of course, if the user + # already specified install_lib, use their selection. + if self.install_lib is None: + if self.distribution.ext_modules: # has extensions: non-pure + self.install_lib = self.install_platlib + else: + self.install_lib = self.install_purelib + + # Convert directories from Unix /-separated syntax to the local + # convention. + self.convert_paths('lib', 'purelib', 'platlib', + 'scripts', 'data', 'headers') + if HAS_USER_SITE: + self.convert_paths('userbase', 'usersite') + + # Well, we're not actually fully completely finalized yet: we still + # have to deal with 'extra_path', which is the hack for allowing + # non-packagized module distributions (hello, Numerical Python!) to + # get their own directories. + self.handle_extra_path() + self.install_libbase = self.install_lib # needed for .pth file + self.install_lib = os.path.join(self.install_lib, self.extra_dirs) + + # If a new root directory was supplied, make all the installation + # dirs relative to it. + if self.root is not None: + self.change_roots('libbase', 'lib', 'purelib', 'platlib', + 'scripts', 'data', 'headers') + + self.dump_dirs("after prepending root") + + # Find out the build directories, ie. where to install from. + self.set_undefined_options('build', 'build_base', 'build_lib') + + # Punt on doc directories for now -- after all, we're punting on + # documentation completely! + + if self.no_distinfo is None: + self.no_distinfo = False + + def finalize_unix(self): + """Finalize options for posix platforms.""" + if self.install_base is not None or self.install_platbase is not None: + if ((self.install_lib is None and + self.install_purelib is None and + self.install_platlib is None) or + self.install_headers is None or + self.install_scripts is None or + self.install_data is None): + raise PackagingOptionError( + "install-base or install-platbase supplied, but " + "installation scheme is incomplete") + return + + if HAS_USER_SITE and self.user: + if self.install_userbase is None: + raise PackagingPlatformError( + "user base directory is not specified") + self.install_base = self.install_platbase = self.install_userbase + self.select_scheme("posix_user") + elif self.home is not None: + self.install_base = self.install_platbase = self.home + self.select_scheme("posix_home") + else: + if self.prefix is None: + if self.exec_prefix is not None: + raise PackagingOptionError( + "must not supply exec-prefix without prefix") + + self.prefix = os.path.normpath(sys.prefix) + self.exec_prefix = os.path.normpath(sys.exec_prefix) + + else: + if self.exec_prefix is None: + self.exec_prefix = self.prefix + + self.install_base = self.prefix + self.install_platbase = self.exec_prefix + self.select_scheme("posix_prefix") + + def finalize_other(self): + """Finalize options for non-posix platforms""" + if HAS_USER_SITE and self.user: + if self.install_userbase is None: + raise PackagingPlatformError( + "user base directory is not specified") + self.install_base = self.install_platbase = self.install_userbase + self.select_scheme(os.name + "_user") + elif self.home is not None: + self.install_base = self.install_platbase = self.home + self.select_scheme("posix_home") + else: + if self.prefix is None: + self.prefix = os.path.normpath(sys.prefix) + + self.install_base = self.install_platbase = self.prefix + try: + self.select_scheme(os.name) + except KeyError: + raise PackagingPlatformError( + "no support for installation on '%s'" % os.name) + + def dump_dirs(self, msg): + """Dump the list of user options.""" + logger.debug(msg + ":") + for opt in self.user_options: + opt_name = opt[0] + if opt_name[-1] == "=": + opt_name = opt_name[0:-1] + if opt_name in self.negative_opt: + opt_name = self.negative_opt[opt_name] + opt_name = opt_name.replace('-', '_') + val = not getattr(self, opt_name) + else: + opt_name = opt_name.replace('-', '_') + val = getattr(self, opt_name) + logger.debug(" %s: %s", opt_name, val) + + def select_scheme(self, name): + """Set the install directories by applying the install schemes.""" + # it's the caller's problem if they supply a bad name! + scheme = get_paths(name, expand=False) + for key, value in scheme.items(): + if key == 'platinclude': + key = 'headers' + value = os.path.join(value, self.distribution.metadata['Name']) + attrname = 'install_' + key + if hasattr(self, attrname): + if getattr(self, attrname) is None: + setattr(self, attrname, value) + + def _expand_attrs(self, attrs): + for attr in attrs: + val = getattr(self, attr) + if val is not None: + if os.name == 'posix' or os.name == 'nt': + val = os.path.expanduser(val) + # see if we want to push this work in sysconfig XXX + val = sysconfig._subst_vars(val, self.config_vars) + setattr(self, attr, val) + + def expand_basedirs(self): + """Call `os.path.expanduser` on install_{base,platbase} and root.""" + self._expand_attrs(['install_base', 'install_platbase', 'root']) + + def expand_dirs(self): + """Call `os.path.expanduser` on install dirs.""" + self._expand_attrs(['install_purelib', 'install_platlib', + 'install_lib', 'install_headers', + 'install_scripts', 'install_data']) + + def convert_paths(self, *names): + """Call `convert_path` over `names`.""" + for name in names: + attr = "install_" + name + setattr(self, attr, convert_path(getattr(self, attr))) + + def handle_extra_path(self): + """Set `path_file` and `extra_dirs` using `extra_path`.""" + if self.extra_path is None: + self.extra_path = self.distribution.extra_path + + if self.extra_path is not None: + if isinstance(self.extra_path, str): + self.extra_path = self.extra_path.split(',') + + if len(self.extra_path) == 1: + path_file = extra_dirs = self.extra_path[0] + elif len(self.extra_path) == 2: + path_file, extra_dirs = self.extra_path + else: + raise PackagingOptionError( + "'extra_path' option must be a list, tuple, or " + "comma-separated string with 1 or 2 elements") + + # convert to local form in case Unix notation used (as it + # should be in setup scripts) + extra_dirs = convert_path(extra_dirs) + else: + path_file = None + extra_dirs = '' + + # XXX should we warn if path_file and not extra_dirs? (in which + # case the path file would be harmless but pointless) + self.path_file = path_file + self.extra_dirs = extra_dirs + + def change_roots(self, *names): + """Change the install direcories pointed by name using root.""" + for name in names: + attr = "install_" + name + setattr(self, attr, change_root(self.root, getattr(self, attr))) + + def create_home_path(self): + """Create directories under ~.""" + if HAS_USER_SITE and not self.user: + return + home = convert_path(os.path.expanduser("~")) + for name, path in self.config_vars.items(): + if path.startswith(home) and not os.path.isdir(path): + os.makedirs(path, 0o700) + + # -- Command execution methods ------------------------------------- + + def run(self): + """Runs the command.""" + # Obviously have to build before we can install + if not self.skip_build: + self.run_command('build') + # If we built for any other platform, we can't install. + build_plat = self.distribution.get_command_obj('build').plat_name + # check warn_dir - it is a clue that the 'install_dist' is happening + # internally, and not to sys.path, so we don't check the platform + # matches what we are running. + if self.warn_dir and build_plat != get_platform(): + raise PackagingPlatformError("Can't install when " + "cross-compiling") + + # Run all sub-commands (at least those that need to be run) + for cmd_name in self.get_sub_commands(): + self.run_command(cmd_name) + + if self.path_file: + self.create_path_file() + + # write list of installed files, if requested. + if self.record: + outputs = self.get_outputs() + if self.root: # strip any package prefix + root_len = len(self.root) + for counter in range(len(outputs)): + outputs[counter] = outputs[counter][root_len:] + self.execute(write_file, + (self.record, outputs), + "writing list of installed files to '%s'" % + self.record) + + normpath, normcase = os.path.normpath, os.path.normcase + sys_path = [normcase(normpath(p)) for p in sys.path] + install_lib = normcase(normpath(self.install_lib)) + if (self.warn_dir and + not (self.path_file and self.install_path_file) and + install_lib not in sys_path): + logger.debug(("modules installed to '%s', which is not in " + "Python's module search path (sys.path) -- " + "you'll have to change the search path yourself"), + self.install_lib) + + def create_path_file(self): + """Creates the .pth file""" + filename = os.path.join(self.install_libbase, + self.path_file + ".pth") + if self.install_path_file: + self.execute(write_file, + (filename, [self.extra_dirs]), + "creating %s" % filename) + else: + logger.warning('%s: path file %r not created', + self.get_command_name(), filename) + + # -- Reporting methods --------------------------------------------- + + def get_outputs(self): + """Assembles the outputs of all the sub-commands.""" + outputs = [] + for cmd_name in self.get_sub_commands(): + cmd = self.get_finalized_command(cmd_name) + # Add the contents of cmd.get_outputs(), ensuring + # that outputs doesn't contain duplicate entries + for filename in cmd.get_outputs(): + if filename not in outputs: + outputs.append(filename) + + if self.path_file and self.install_path_file: + outputs.append(os.path.join(self.install_libbase, + self.path_file + ".pth")) + + return outputs + + def get_inputs(self): + """Returns the inputs of all the sub-commands""" + # XXX gee, this looks familiar ;-( + inputs = [] + for cmd_name in self.get_sub_commands(): + cmd = self.get_finalized_command(cmd_name) + inputs.extend(cmd.get_inputs()) + + return inputs + + # -- Predicates for sub-command list ------------------------------- + + def has_lib(self): + """Returns true if the current distribution has any Python + modules to install.""" + return (self.distribution.has_pure_modules() or + self.distribution.has_ext_modules()) + + def has_headers(self): + """Returns true if the current distribution has any headers to + install.""" + return self.distribution.has_headers() + + def has_scripts(self): + """Returns true if the current distribution has any scripts to. + install.""" + return self.distribution.has_scripts() + + def has_data(self): + """Returns true if the current distribution has any data to. + install.""" + return self.distribution.has_data_files() + + # 'sub_commands': a list of commands this command might have to run to + # get its work done. See cmd.py for more info. + sub_commands = [('install_lib', has_lib), + ('install_headers', has_headers), + ('install_scripts', has_scripts), + ('install_data', has_data), + # keep install_distinfo last, as it needs the record + # with files to be completely generated + ('install_distinfo', lambda self: not self.no_distinfo), + ] |