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494 lines
17 KiB
Python
494 lines
17 KiB
Python
"""distutils.command.dist
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Implements the Distutils 'dist' command (create a source distribution)."""
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# created 1999/09/22, Greg Ward
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__rcsid__ = "$Id$"
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import sys, os, string, re
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import fnmatch
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from types import *
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from glob import glob
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from shutil import rmtree
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from distutils.core import Command
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from distutils.text_file import TextFile
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# Possible modes of operation:
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# - require an explicit manifest that lists every single file (presumably
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# along with a way to auto-generate the manifest)
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# - require an explicit manifest, but allow it to have globs or
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# filename patterns of some kind (and also have auto-generation)
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# - allow an explict manifest, but automatically augment it at runtime
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# with the source files mentioned in 'packages', 'py_modules', and
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# 'ext_modules' (and any other such things that might come along)
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# I'm liking the third way. Possible gotchas:
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# - redundant specification: 'packages' includes 'foo' and manifest
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# includes 'foo/*.py'
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# - obvious conflict: 'packages' includes 'foo' and manifest
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# includes '! foo/*.py' (can't imagine why you'd want this)
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# - subtle conflict: 'packages' includes 'foo' and manifest
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# includes '! foo/bar.py' (this could well be desired: eg. exclude
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# an experimental module from distribution)
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# Syntax for the manifest file:
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# - if a line is just a Unix-style glob by itself, it's a "simple include
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# pattern": go find all files that match and add them to the list
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# of files
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# - if a line is a glob preceded by "!", then it's a "simple exclude
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# pattern": go over the current list of files and exclude any that
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# match the glob pattern
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# - if a line consists of a directory name followed by zero or more
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# glob patterns, then we'll recursively explore that directory tree
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# - the glob patterns can be include (no punctuation) or exclude
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# (prefixed by "!", no space)
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# - if no patterns given or the first pattern is not an include pattern,
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# then assume "*" -- ie. find everything (and then start applying
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# the rest of the patterns)
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# - the patterns are given in order of increasing precedence, ie.
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# the *last* one to match a given file applies to it
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#
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# example (ignoring auto-augmentation!):
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# distutils/*.py
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# distutils/command/*.py
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# ! distutils/bleeding_edge.py
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# examples/*.py
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# examples/README
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#
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# smarter way (that *will* include distutils/command/bleeding_edge.py!)
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# distutils *.py
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# ! distutils/bleeding_edge.py
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# examples !*~ !*.py[co] (same as: examples * !*~ !*.py[co])
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# test test_* *.txt !*~ !*.py[co]
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# README
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# setup.py
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#
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# The actual Distutils manifest (don't need to mention source files,
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# README, setup.py -- they're automatically distributed!):
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# examples !*~ !*.py[co]
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# test !*~ !*.py[co]
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# The algorithm that will make it work:
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# files = stuff from 'packages', 'py_modules', 'ext_modules',
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# plus README, setup.py, ... ?
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# foreach pattern in manifest file:
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# if simple-include-pattern: # "distutils/*.py"
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# files.append (glob (pattern))
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# elif simple-exclude-pattern: # "! distutils/foo*"
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# xfiles = glob (pattern)
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# remove all xfiles from files
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# elif recursive-pattern: # "examples" (just a directory name)
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# patterns = rest-of-words-on-line
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# dir_files = list of all files under dir
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# if patterns:
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# if patterns[0] is an exclude-pattern:
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# insert "*" at patterns[0]
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# for file in dir_files:
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# for dpattern in reverse (patterns):
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# if file matches dpattern:
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# if dpattern is an include-pattern:
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# files.append (file)
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# else:
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# nothing, don't include it
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# next file
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# else:
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# files.extend (dir_files) # ie. accept all of them
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# Anyways, this is all implemented below -- BUT it is largely untested; I
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# know it works for the simple case of distributing the Distutils, but
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# haven't tried it on more complicated examples. Undoubtedly doing so will
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# reveal bugs and cause delays, so I'm waiting until after I've released
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# Distutils 0.1.
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# Other things we need to look for in creating a source distribution:
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# - make sure there's a README
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# - make sure the distribution meta-info is supplied and non-empty
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# (*must* have name, version, ((author and author_email) or
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# (maintainer and maintainer_email)), url
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#
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# Frills:
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# - make sure the setup script is called "setup.py"
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# - make sure the README refers to "setup.py" (ie. has a line matching
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# /^\s*python\s+setup\.py/)
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# A crazy idea that conflicts with having/requiring 'version' in setup.py:
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# - make sure there's a version number in the "main file" (main file
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# is __init__.py of first package, or the first module if no packages,
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# or the first extension module if no pure Python modules)
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# - XXX how do we look for __version__ in an extension module?
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# - XXX do we import and look for __version__? or just scan source for
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# /^__version__\s*=\s*"[^"]+"/ ?
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# - what about 'version_from' as an alternative to 'version' -- then
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# we know just where to search for the version -- no guessing about
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# what the "main file" is
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class Dist (Command):
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options = [('formats=', None,
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"formats for source distribution (tar, ztar, gztar, or zip)"),
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('manifest=', 'm',
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"name of manifest file"),
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('list-only', 'l',
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"just list files that would be distributed"),
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('keep-tree', 'k',
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"keep the distribution tree around after creating " +
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"archive file(s)"),
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]
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default_format = { 'posix': 'gztar',
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'nt': 'zip' }
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exclude_re = re.compile (r'\s*!\s*(\S+)') # for manifest lines
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def set_default_options (self):
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self.formats = None
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self.manifest = None
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self.list_only = 0
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self.keep_tree = 0
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def set_final_options (self):
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if self.formats is None:
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try:
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self.formats = [self.default_format[os.name]]
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except KeyError:
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raise DistutilsPlatformError, \
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"don't know how to build source distributions on " + \
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"%s platform" % os.name
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elif type (self.formats) is StringType:
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self.formats = string.split (self.formats, ',')
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if self.manifest is None:
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self.manifest = "MANIFEST"
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def run (self):
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self.check_metadata ()
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self.files = []
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self.find_defaults ()
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self.read_manifest ()
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if self.list_only:
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for f in self.files:
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print f
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else:
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self.make_distribution ()
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def check_metadata (self):
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dist = self.distribution
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missing = []
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for attr in ('name', 'version', 'url'):
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if not (hasattr (dist, attr) and getattr (dist, attr)):
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missing.append (attr)
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if missing:
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self.warn ("missing required meta-data: " +
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string.join (missing, ", "))
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if dist.author:
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if not dist.author_email:
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self.warn ("missing meta-data: if 'author' supplied, " +
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"'author_email' must be supplied too")
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elif dist.maintainer:
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if not dist.maintainer_email:
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self.warn ("missing meta-data: if 'maintainer' supplied, " +
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"'maintainer_email' must be supplied too")
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else:
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self.warn ("missing meta-data: either (author and author_email) " +
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"or (maintainer and maintainer_email) " +
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"must be supplied")
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# check_metadata ()
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def find_defaults (self):
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standards = ['README', 'setup.py']
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for fn in standards:
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if os.path.exists (fn):
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self.files.append (fn)
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else:
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self.warn ("standard file %s not found" % fn)
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optional = ['test/test*.py']
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for pattern in optional:
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files = filter (os.path.isfile, glob (pattern))
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if files:
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self.files.extend (files)
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if self.distribution.packages or self.distribution.py_modules:
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build_py = self.find_peer ('build_py')
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build_py.ensure_ready ()
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self.files.extend (build_py.get_source_files ())
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if self.distribution.ext_modules:
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build_ext = self.find_peer ('build_ext')
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build_ext.ensure_ready ()
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self.files.extend (build_ext.get_source_files ())
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def open_manifest (self, filename):
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return TextFile (filename,
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strip_comments=1,
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skip_blanks=1,
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join_lines=1,
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lstrip_ws=1,
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rstrip_ws=1,
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collapse_ws=1)
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def search_dir (self, dir, patterns):
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allfiles = findall (dir)
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if patterns:
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if patterns[0][0] == "!": # starts with an exclude spec?
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patterns.insert (0, "*")# then accept anything that isn't
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# explicitly excluded
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act_patterns = [] # "action-patterns": (include,regexp)
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# tuples where include is a boolean
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for pattern in patterns:
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if pattern[0] == '!':
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act_patterns.append \
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((0, re.compile (fnmatch.translate (pattern[1:]))))
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else:
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act_patterns.append \
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((1, re.compile (fnmatch.translate (pattern))))
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act_patterns.reverse()
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files = []
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for file in allfiles:
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for (include,regexp) in act_patterns:
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if regexp.search (file):
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if include:
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files.append (file)
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break # continue to next file
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else:
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files = allfiles
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return files
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# search_dir ()
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def exclude_files (self, pattern):
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regexp = re.compile (fnmatch.translate (pattern))
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for i in range (len (self.files)-1, -1, -1):
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if regexp.search (self.files[i]):
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del self.files[i]
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def read_manifest (self):
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# self.files had better already be defined (and hold the
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# "automatically found" files -- Python modules and extensions,
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# README, setup script, ...)
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assert self.files is not None
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try:
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manifest = self.open_manifest (self.manifest)
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except IOError, exc:
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if type (exc) is InstanceType and hasattr (exc, 'strerror'):
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msg = "could not open MANIFEST (%s)" % \
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string.lower (exc.strerror)
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else:
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msg = "could not open MANIFST"
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self.warn (msg + ": using default file list")
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return
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while 1:
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pattern = manifest.readline()
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if pattern is None: # end of file
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break
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# Cases:
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# 1) simple-include: "*.py", "foo/*.py", "doc/*.html", "FAQ"
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# 2) simple-exclude: same, prefaced by !
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# 3) recursive: multi-word line, first word a directory
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exclude = self.exclude_re.match (pattern)
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if exclude:
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pattern = exclude.group (1)
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words = string.split (pattern)
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assert words # must have something!
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if os.name != 'posix':
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words[0] = apply (os.path.join, string.split (words[0], '/'))
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# First word is a directory, possibly with include/exclude
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# patterns making up the rest of the line: it's a recursive
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# pattern
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if os.path.isdir (words[0]):
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if exclude:
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file.warn ("exclude (!) doesn't apply to " +
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"whole directory trees")
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continue
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dir_files = self.search_dir (words[0], words[1:])
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self.files.extend (dir_files)
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# Multiple words in pattern: that's a no-no unless the first
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# word is a directory name
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elif len (words) > 1:
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file.warn ("can't have multiple words unless first word " +
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"('%s') is a directory name" % words[0])
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continue
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# Single word, no bang: it's a "simple include pattern"
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elif not exclude:
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matches = filter (os.path.isfile, glob (pattern))
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if matches:
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self.files.extend (matches)
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else:
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manifest.warn ("no matches for '%s' found" % pattern)
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# Single word prefixed with a bang: it's a "simple exclude pattern"
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else:
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if self.exclude_files (pattern) == 0:
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file.warn ("no files excluded by '%s'" % pattern)
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# if/elif/.../else on 'pattern'
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# loop over lines of 'manifest'
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# read_manifest ()
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def make_release_tree (self, base_dir, files):
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# XXX this is Unix-specific
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# First get the list of directories to create
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need_dir = {}
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for file in files:
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need_dir[os.path.join (base_dir, os.path.dirname (file))] = 1
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need_dirs = need_dir.keys()
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need_dirs.sort()
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# Now create them
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for dir in need_dirs:
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self.mkpath (dir)
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# And walk over the list of files, making a hard link for
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# each one that doesn't already exist in its corresponding
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# location under 'base_dir'
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self.announce ("making hard links in %s..." % base_dir)
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for file in files:
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dest = os.path.join (base_dir, file)
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if not os.path.exists (dest):
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self.execute (os.link, (file, dest),
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"linking %s -> %s" % (file, dest))
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# make_release_tree ()
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def nuke_release_tree (self, base_dir):
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self.execute (rmtree, (base_dir,),
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"removing %s" % base_dir)
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def make_tarball (self, base_dir, compress="gzip"):
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# XXX GNU tar 1.13 has a nifty option to add a prefix directory.
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# It's pretty new, though, so we certainly can't require it --
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# but it would be nice to take advantage of it to skip the
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# "create a tree of hardlinks" step! (Would also be nice to
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# detect GNU tar to use its 'z' option and save a step.)
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if compress is not None and compress not in ('gzip', 'compress'):
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raise ValueError, \
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"if given, 'compress' must be 'gzip' or 'compress'"
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archive_name = base_dir + ".tar"
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self.spawn (["tar", "-cf", archive_name, base_dir])
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if compress:
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self.spawn ([compress, archive_name])
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def make_zipfile (self, base_dir):
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# This assumes the Unix 'zip' utility -- it could be easily recast
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# to use pkzip (or whatever the command-line zip creation utility
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# on Redmond's archaic CP/M knockoff is nowadays), but I'll let
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# someone who can actually test it do that.
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self.spawn (["zip", "-r", base_dir + ".zip", base_dir])
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def make_distribution (self):
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# Don't warn about missing meta-data here -- should be done
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# elsewhere.
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name = self.distribution.name or "UNKNOWN"
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version = self.distribution.version
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if version:
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base_dir = "%s-%s" % (name, version)
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else:
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base_dir = name
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# Remove any files that match "base_dir" from the fileset -- we
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# don't want to go distributing the distribution inside itself!
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self.exclude_files (base_dir + "*")
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self.make_release_tree (base_dir, self.files)
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for fmt in self.formats:
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if fmt == 'gztar':
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self.make_tarball (base_dir, compress='gzip')
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elif fmt == 'ztar':
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self.make_tarball (base_dir, compress='compress')
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elif fmt == 'tar':
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self.make_tarball (base_dir, compress=None)
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elif fmt == 'zip':
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self.make_zipfile (base_dir)
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if not self.keep_tree:
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self.nuke_release_tree (base_dir)
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# class Dist
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# ----------------------------------------------------------------------
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# Utility functions
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def findall (dir = os.curdir):
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"""Find all files under 'dir' and return the sorted list of full
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filenames (relative to 'dir')."""
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list = []
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stack = [dir]
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pop = stack.pop
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push = stack.append
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while stack:
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dir = pop()
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names = os.listdir (dir)
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for name in names:
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fullname = os.path.join (dir, name)
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list.append (fullname)
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if os.path.isdir (fullname) and not os.path.islink(fullname):
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push (fullname)
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list.sort()
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return list
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