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-rw-r--r--Lib/packaging/command/install_lib.py222
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diff --git a/Lib/packaging/command/install_lib.py b/Lib/packaging/command/install_lib.py
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+"""Install all modules (extensions and pure Python)."""
+
+import os
+import sys
+import logging
+
+from packaging import logger
+from packaging.command.cmd import Command
+from packaging.errors import PackagingOptionError
+
+
+# Extension for Python source files.
+if hasattr(os, 'extsep'):
+ PYTHON_SOURCE_EXTENSION = os.extsep + "py"
+else:
+ PYTHON_SOURCE_EXTENSION = ".py"
+
+class install_lib(Command):
+
+ description = "install all modules (extensions and pure Python)"
+
+ # The byte-compilation options are a tad confusing. Here are the
+ # possible scenarios:
+ # 1) no compilation at all (--no-compile --no-optimize)
+ # 2) compile .pyc only (--compile --no-optimize; default)
+ # 3) compile .pyc and "level 1" .pyo (--compile --optimize)
+ # 4) compile "level 1" .pyo only (--no-compile --optimize)
+ # 5) compile .pyc and "level 2" .pyo (--compile --optimize-more)
+ # 6) compile "level 2" .pyo only (--no-compile --optimize-more)
+ #
+ # The UI for this is two option, 'compile' and 'optimize'.
+ # 'compile' is strictly boolean, and only decides whether to
+ # generate .pyc files. 'optimize' is three-way (0, 1, or 2), and
+ # decides both whether to generate .pyo files and what level of
+ # optimization to use.
+
+ user_options = [
+ ('install-dir=', 'd', "directory to install to"),
+ ('build-dir=','b', "build directory (where to install from)"),
+ ('force', 'f', "force installation (overwrite existing files)"),
+ ('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]"),
+ ('skip-build', None, "skip the build steps"),
+ ]
+
+ boolean_options = ['force', 'compile', 'skip-build']
+ negative_opt = {'no-compile' : 'compile'}
+
+ def initialize_options(self):
+ # let the 'install_dist' command dictate our installation directory
+ self.install_dir = None
+ self.build_dir = None
+ self.force = False
+ self.compile = None
+ self.optimize = None
+ self.skip_build = None
+
+ def finalize_options(self):
+ # Get all the information we need to install pure Python modules
+ # from the umbrella 'install_dist' command -- build (source) directory,
+ # install (target) directory, and whether to compile .py files.
+ self.set_undefined_options('install_dist',
+ ('build_lib', 'build_dir'),
+ ('install_lib', 'install_dir'),
+ 'force', 'compile', 'optimize', 'skip_build')
+
+ if self.compile is None:
+ self.compile = True
+ if self.optimize is None:
+ self.optimize = 0
+
+ if not isinstance(self.optimize, int):
+ try:
+ self.optimize = int(self.optimize)
+ if self.optimize not in (0, 1, 2):
+ raise AssertionError
+ except (ValueError, AssertionError):
+ raise PackagingOptionError("optimize must be 0, 1, or 2")
+
+ def run(self):
+ # Make sure we have built everything we need first
+ self.build()
+
+ # Install everything: simply dump the entire contents of the build
+ # directory to the installation directory (that's the beauty of
+ # having a build directory!)
+ outfiles = self.install()
+
+ # (Optionally) compile .py to .pyc
+ if outfiles is not None and self.distribution.has_pure_modules():
+ self.byte_compile(outfiles)
+
+ # -- Top-level worker functions ------------------------------------
+ # (called from 'run()')
+
+ def build(self):
+ if not self.skip_build:
+ if self.distribution.has_pure_modules():
+ self.run_command('build_py')
+ if self.distribution.has_ext_modules():
+ self.run_command('build_ext')
+
+ def install(self):
+ if os.path.isdir(self.build_dir):
+ outfiles = self.copy_tree(self.build_dir, self.install_dir)
+ else:
+ logger.warning(
+ '%s: %r does not exist -- no Python modules to install',
+ self.get_command_name(), self.build_dir)
+ return
+ return outfiles
+
+ def byte_compile(self, files):
+ if sys.dont_write_bytecode:
+ # XXX do we want this? because a Python runs without bytecode
+ # doesn't mean that the *dists should not contain bytecode
+ #--or does it?
+ logger.warning('%s: byte-compiling is disabled, skipping.',
+ self.get_command_name())
+ return
+
+ from packaging.util import byte_compile # FIXME use compileall
+
+ # Get the "--root" directory supplied to the "install_dist" command,
+ # and use it as a prefix to strip off the purported filename
+ # encoded in bytecode files. This is far from complete, but it
+ # should at least generate usable bytecode in RPM distributions.
+ install_root = self.get_finalized_command('install_dist').root
+
+ # Temporary kludge until we remove the verbose arguments and use
+ # logging everywhere
+ verbose = logger.getEffectiveLevel() >= logging.DEBUG
+
+ if self.compile:
+ byte_compile(files, optimize=0,
+ force=self.force, prefix=install_root,
+ dry_run=self.dry_run)
+ if self.optimize > 0:
+ byte_compile(files, optimize=self.optimize,
+ force=self.force, prefix=install_root,
+ verbose=verbose,
+ dry_run=self.dry_run)
+
+
+ # -- Utility methods -----------------------------------------------
+
+ def _mutate_outputs(self, has_any, build_cmd, cmd_option, output_dir):
+ if not has_any:
+ return []
+
+ build_cmd = self.get_finalized_command(build_cmd)
+ build_files = build_cmd.get_outputs()
+ build_dir = getattr(build_cmd, cmd_option)
+
+ prefix_len = len(build_dir) + len(os.sep)
+ outputs = []
+ for file in build_files:
+ outputs.append(os.path.join(output_dir, file[prefix_len:]))
+
+ return outputs
+
+ def _bytecode_filenames(self, py_filenames):
+ bytecode_files = []
+ for py_file in py_filenames:
+ # Since build_py handles package data installation, the
+ # list of outputs can contain more than just .py files.
+ # Make sure we only report bytecode for the .py files.
+ ext = os.path.splitext(os.path.normcase(py_file))[1]
+ if ext != PYTHON_SOURCE_EXTENSION:
+ continue
+ if self.compile:
+ bytecode_files.append(py_file + "c")
+ if self.optimize > 0:
+ bytecode_files.append(py_file + "o")
+
+ return bytecode_files
+
+
+ # -- External interface --------------------------------------------
+ # (called by outsiders)
+
+ def get_outputs(self):
+ """Return the list of files that would be installed if this command
+ were actually run. Not affected by the "dry-run" flag or whether
+ modules have actually been built yet.
+ """
+ pure_outputs = \
+ self._mutate_outputs(self.distribution.has_pure_modules(),
+ 'build_py', 'build_lib',
+ self.install_dir)
+ if self.compile:
+ bytecode_outputs = self._bytecode_filenames(pure_outputs)
+ else:
+ bytecode_outputs = []
+
+ ext_outputs = \
+ self._mutate_outputs(self.distribution.has_ext_modules(),
+ 'build_ext', 'build_lib',
+ self.install_dir)
+
+ return pure_outputs + bytecode_outputs + ext_outputs
+
+ def get_inputs(self):
+ """Get the list of files that are input to this command, ie. the
+ files that get installed as they are named in the build tree.
+ The files in this list correspond one-to-one to the output
+ filenames returned by 'get_outputs()'.
+ """
+ inputs = []
+
+ if self.distribution.has_pure_modules():
+ build_py = self.get_finalized_command('build_py')
+ inputs.extend(build_py.get_outputs())
+
+ if self.distribution.has_ext_modules():
+ build_ext = self.get_finalized_command('build_ext')
+ inputs.extend(build_ext.get_outputs())
+
+ return inputs