distribute-0.6 / setuptools / command / bdist_egg.py

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
"""setuptools.command.bdist_egg

Build .egg distributions"""

# This module should be kept compatible with Python 2.3
import sys, os, marshal
from setuptools import Command
from distutils.dir_util import remove_tree, mkpath
try:
    from distutils.sysconfig import get_python_version, get_python_lib
except ImportError:
    from sysconfig import get_python_version
    from distutils.sysconfig import get_python_lib

from distutils import log
from distutils.errors import DistutilsSetupError
from pkg_resources import get_build_platform, Distribution, ensure_directory
from pkg_resources import EntryPoint
from types import CodeType
from setuptools.extension import Library

def strip_module(filename):
    if '.' in filename:
        filename = os.path.splitext(filename)[0]
    if filename.endswith('module'):
        filename = filename[:-6]
    return filename

def write_stub(resource, pyfile):
    f = open(pyfile,'w')
    f.write('\n'.join([
        "def __bootstrap__():",
        "   global __bootstrap__, __loader__, __file__",
        "   import sys, pkg_resources, imp",
        "   __file__ = pkg_resources.resource_filename(__name__,%r)"
            % resource,
        "   __loader__ = None; del __bootstrap__, __loader__",
        "   imp.load_dynamic(__name__,__file__)",
        "__bootstrap__()",
        "" # terminal \n
    ]))
    f.close()

# stub __init__.py for packages distributed without one
NS_PKG_STUB = '__import__("pkg_resources").declare_namespace(__name__)'

class bdist_egg(Command):

    description = "create an \"egg\" distribution"

    user_options = [
        ('bdist-dir=', 'b',
            "temporary directory for creating the distribution"),
        ('plat-name=', 'p',
                     "platform name to embed in generated filenames "
                     "(default: %s)" % get_build_platform()),
        ('exclude-source-files', None,
                     "remove all .py files from the generated egg"),
        ('keep-temp', 'k',
                     "keep the pseudo-installation tree around after " +
                     "creating the distribution archive"),
        ('dist-dir=', 'd',
                     "directory to put final built distributions in"),
        ('skip-build', None,
                     "skip rebuilding everything (for testing/debugging)"),
    ]

    boolean_options = [
        'keep-temp', 'skip-build', 'exclude-source-files'
    ]

















    def initialize_options (self):
        self.bdist_dir = None
        self.plat_name = None
        self.keep_temp = 0
        self.dist_dir = None
        self.skip_build = 0
        self.egg_output = None
        self.exclude_source_files = None


    def finalize_options(self):
        ei_cmd = self.ei_cmd = self.get_finalized_command("egg_info")
        self.egg_info = ei_cmd.egg_info

        if self.bdist_dir is None:
            bdist_base = self.get_finalized_command('bdist').bdist_base
            self.bdist_dir = os.path.join(bdist_base, 'egg')

        if self.plat_name is None:
            self.plat_name = get_build_platform()

        self.set_undefined_options('bdist',('dist_dir', 'dist_dir'))

        if self.egg_output is None:

            # Compute filename of the output egg
            basename = Distribution(
                None, None, ei_cmd.egg_name, ei_cmd.egg_version,
                get_python_version(),
                self.distribution.has_ext_modules() and self.plat_name
            ).egg_name()

            self.egg_output = os.path.join(self.dist_dir, basename+'.egg')








    def do_install_data(self):
        # Hack for packages that install data to install's --install-lib
        self.get_finalized_command('install').install_lib = self.bdist_dir

        site_packages = os.path.normcase(os.path.realpath(get_python_lib()))
        old, self.distribution.data_files = self.distribution.data_files,[]

        for item in old:
            if isinstance(item,tuple) and len(item)==2:
                if os.path.isabs(item[0]):
                    realpath = os.path.realpath(item[0])
                    normalized = os.path.normcase(realpath)
                    if normalized==site_packages or normalized.startswith(
                        site_packages+os.sep
                    ):
                        item = realpath[len(site_packages)+1:], item[1]
                    # XXX else: raise ???
            self.distribution.data_files.append(item)

        try:
            log.info("installing package data to %s" % self.bdist_dir)
            self.call_command('install_data', force=0, root=None)
        finally:
            self.distribution.data_files = old


    def get_outputs(self):
        return [self.egg_output]


    def call_command(self,cmdname,**kw):
        """Invoke reinitialized command `cmdname` with keyword args"""
        for dirname in INSTALL_DIRECTORY_ATTRS:
            kw.setdefault(dirname,self.bdist_dir)
        kw.setdefault('skip_build',self.skip_build)
        kw.setdefault('dry_run', self.dry_run)
        cmd = self.reinitialize_command(cmdname, **kw)
        self.run_command(cmdname)
        return cmd


    def run(self):
        # Generate metadata first
        self.run_command("egg_info")

        # We run install_lib before install_data, because some data hacks
        # pull their data path from the install_lib command.
        log.info("installing library code to %s" % self.bdist_dir)
        instcmd = self.get_finalized_command('install')
        old_root = instcmd.root; instcmd.root = None
        cmd = self.call_command('install_lib', warn_dir=0)
        instcmd.root = old_root

        all_outputs, ext_outputs = self.get_ext_outputs()
        self.stubs = []
        to_compile = []
        for (p,ext_name) in enumerate(ext_outputs):
            filename,ext = os.path.splitext(ext_name)
            pyfile = os.path.join(self.bdist_dir, strip_module(filename)+'.py')
            self.stubs.append(pyfile)
            log.info("creating stub loader for %s" % ext_name)
            if not self.dry_run:
                write_stub(os.path.basename(ext_name), pyfile)
            to_compile.append(pyfile)
            ext_outputs[p] = ext_name.replace(os.sep,'/')

        to_compile.extend(self.make_init_files())
        if to_compile:
            cmd.byte_compile(to_compile)

        if self.distribution.data_files:
            self.do_install_data()

        # Make the EGG-INFO directory
        archive_root = self.bdist_dir
        egg_info = os.path.join(archive_root,'EGG-INFO')
        self.mkpath(egg_info)
        if self.distribution.scripts:
            script_dir = os.path.join(egg_info, 'scripts')
            log.info("installing scripts to %s" % script_dir)
            self.call_command('install_scripts',install_dir=script_dir,no_ep=1)

        self.copy_metadata_to(egg_info)
        native_libs = os.path.join(egg_info, "native_libs.txt")
        if all_outputs:
            log.info("writing %s" % native_libs)
            if not self.dry_run:
                ensure_directory(native_libs)
                libs_file = open(native_libs, 'wt')
                libs_file.write('\n'.join(all_outputs))
                libs_file.write('\n')
                libs_file.close()
        elif os.path.isfile(native_libs):
            log.info("removing %s" % native_libs)
            if not self.dry_run:
                os.unlink(native_libs)

        write_safety_flag(
            os.path.join(archive_root,'EGG-INFO'), self.zip_safe()
        )

        if os.path.exists(os.path.join(self.egg_info,'depends.txt')):
            log.warn(
                "WARNING: 'depends.txt' will not be used by setuptools 0.6!\n"
                "Use the install_requires/extras_require setup() args instead."
            )

        if self.exclude_source_files:
            self.zap_pyfiles()

        # Make the archive
        make_zipfile(self.egg_output, archive_root, verbose=self.verbose,
                          dry_run=self.dry_run, mode=self.gen_header())
        if not self.keep_temp:
            remove_tree(self.bdist_dir, dry_run=self.dry_run)

        # Add to 'Distribution.dist_files' so that the "upload" command works
        getattr(self.distribution,'dist_files',[]).append(
            ('bdist_egg',get_python_version(),self.egg_output))




    def zap_pyfiles(self):
        log.info("Removing .py files from temporary directory")
        for base,dirs,files in walk_egg(self.bdist_dir):
            for name in files:
                if name.endswith('.py'):
                    path = os.path.join(base,name)
                    log.debug("Deleting %s", path)
                    os.unlink(path)

    def zip_safe(self):
        safe = getattr(self.distribution,'zip_safe',None)
        if safe is not None:
            return safe
        log.warn("zip_safe flag not set; analyzing archive contents...")
        return analyze_egg(self.bdist_dir, self.stubs)

    def make_init_files(self):
        """Create missing package __init__ files"""
        init_files = []
        for base,dirs,files in walk_egg(self.bdist_dir):
            if base==self.bdist_dir:
                # don't put an __init__ in the root
                continue
            for name in files:
                if name.endswith('.py'):
                    if '__init__.py' not in files:
                        pkg = base[len(self.bdist_dir)+1:].replace(os.sep,'.')
                        if self.distribution.has_contents_for(pkg):
                            log.warn("Creating missing __init__.py for %s",pkg)
                            filename = os.path.join(base,'__init__.py')
                            if not self.dry_run:
                                f = open(filename,'w'); f.write(NS_PKG_STUB)
                                f.close()
                            init_files.append(filename)
                    break
            else:
                # not a package, don't traverse to subdirectories
                dirs[:] = []

        return init_files

    def gen_header(self):
        epm = EntryPoint.parse_map(self.distribution.entry_points or '')
        ep = epm.get('setuptools.installation',{}).get('eggsecutable')
        if ep is None:
            return 'w'  # not an eggsecutable, do it the usual way.

        if not ep.attrs or ep.extras:
            raise DistutilsSetupError(
                "eggsecutable entry point (%r) cannot have 'extras' "
                "or refer to a module" % (ep,)
            )

        pyver = sys.version[:3]
        pkg = ep.module_name
        full = '.'.join(ep.attrs)
        base = ep.attrs[0]
        basename = os.path.basename(self.egg_output)

        header = (
            "#!/bin/sh\n"
            'if [ `basename $0` = "%(basename)s" ]\n'
            'then exec python%(pyver)s -c "'
            "import sys, os; sys.path.insert(0, os.path.abspath('$0')); "
            "from %(pkg)s import %(base)s; sys.exit(%(full)s())"
            '" "$@"\n'
            'else\n'
            '  echo $0 is not the correct name for this egg file.\n'
            '  echo Please rename it back to %(basename)s and try again.\n'
            '  exec false\n'
            'fi\n'

        ) % locals()

        if not self.dry_run:
            mkpath(os.path.dirname(self.egg_output), dry_run=self.dry_run)
            f = open(self.egg_output, 'w')
            f.write(header)
            f.close()
        return 'a'


    def copy_metadata_to(self, target_dir):
        "Copy metadata (egg info) to the target_dir"
        # normalize the path (so that a forward-slash in egg_info will
        # match using startswith below)
        norm_egg_info = os.path.normpath(self.egg_info)
        prefix = os.path.join(norm_egg_info,'')
        for path in self.ei_cmd.filelist.files:
            if path.startswith(prefix):
                target = os.path.join(target_dir, path[len(prefix):])
                ensure_directory(target)
                self.copy_file(path, target)

    def get_ext_outputs(self):
        """Get a list of relative paths to C extensions in the output distro"""

        all_outputs = []
        ext_outputs = []

        paths = {self.bdist_dir:''}
        for base, dirs, files in os.walk(self.bdist_dir):
            for filename in files:
                if os.path.splitext(filename)[1].lower() in NATIVE_EXTENSIONS:
                    all_outputs.append(paths[base]+filename)
            for filename in dirs:
                paths[os.path.join(base,filename)] = paths[base]+filename+'/'

        if self.distribution.has_ext_modules():
            build_cmd = self.get_finalized_command('build_ext')
            for ext in build_cmd.extensions:
                if isinstance(ext,Library):
                    continue
                fullname = build_cmd.get_ext_fullname(ext.name)
                filename = build_cmd.get_ext_filename(fullname)
                if not os.path.basename(filename).startswith('dl-'):
                    if os.path.exists(os.path.join(self.bdist_dir,filename)):
                        ext_outputs.append(filename)

        return all_outputs, ext_outputs


NATIVE_EXTENSIONS = dict.fromkeys('.dll .so .dylib .pyd'.split())




def walk_egg(egg_dir):
    """Walk an unpacked egg's contents, skipping the metadata directory"""
    walker = os.walk(egg_dir)
    base,dirs,files = walker.next()
    if 'EGG-INFO' in dirs:
        dirs.remove('EGG-INFO')
    yield base,dirs,files
    for bdf in walker:
        yield bdf

def analyze_egg(egg_dir, stubs):
    # check for existing flag in EGG-INFO
    for flag,fn in safety_flags.items():
        if os.path.exists(os.path.join(egg_dir,'EGG-INFO',fn)):
            return flag
    if not can_scan(): return False
    safe = True
    for base, dirs, files in walk_egg(egg_dir):
        for name in files:
            if name.endswith('.py') or name.endswith('.pyw'):
                continue
            elif name.endswith('.pyc') or name.endswith('.pyo'):
                # always scan, even if we already know we're not safe
                safe = scan_module(egg_dir, base, name, stubs) and safe
    return safe

def write_safety_flag(egg_dir, safe):
    # Write or remove zip safety flag file(s)
    for flag,fn in safety_flags.items():
        fn = os.path.join(egg_dir, fn)
        if os.path.exists(fn):
            if safe is None or bool(safe)<>flag:
                os.unlink(fn)
        elif safe is not None and bool(safe)==flag:
            f=open(fn,'wt'); f.write('\n'); f.close()

safety_flags = {
    True: 'zip-safe',
    False: 'not-zip-safe',
}

def scan_module(egg_dir, base, name, stubs):
    """Check whether module possibly uses unsafe-for-zipfile stuff"""

    filename = os.path.join(base,name)
    if filename[:-1] in stubs:
        return True     # Extension module
    pkg = base[len(egg_dir)+1:].replace(os.sep,'.')
    module = pkg+(pkg and '.' or '')+os.path.splitext(name)[0]
    f = open(filename,'rb'); f.read(8)   # skip magic & date
    code = marshal.load(f);  f.close()
    safe = True
    symbols = dict.fromkeys(iter_symbols(code))
    for bad in ['__file__', '__path__']:
        if bad in symbols:
            log.warn("%s: module references %s", module, bad)
            safe = False
    if 'inspect' in symbols:
        for bad in [
            'getsource', 'getabsfile', 'getsourcefile', 'getfile'
            'getsourcelines', 'findsource', 'getcomments', 'getframeinfo',
            'getinnerframes', 'getouterframes', 'stack', 'trace'
        ]:
            if bad in symbols:
                log.warn("%s: module MAY be using inspect.%s", module, bad)
                safe = False
    if '__name__' in symbols and '__main__' in symbols and '.' not in module:
        if sys.version[:3]=="2.4":  # -m works w/zipfiles in 2.5
            log.warn("%s: top-level module may be 'python -m' script", module)
            safe = False
    return safe

def iter_symbols(code):
    """Yield names and strings used by `code` and its nested code objects"""
    for name in code.co_names: yield name
    for const in code.co_consts:
        if isinstance(const,basestring):
            yield const
        elif isinstance(const,CodeType):
            for name in iter_symbols(const):
                yield name

def can_scan():
    if not sys.platform.startswith('java') and sys.platform != 'cli':
        # CPython, PyPy, etc.
        return True
    log.warn("Unable to analyze compiled code on this platform.")
    log.warn("Please ask the author to include a 'zip_safe'"
             " setting (either True or False) in the package's setup.py")


































# Attribute names of options for commands that might need to be convinced to
# install to the egg build directory

INSTALL_DIRECTORY_ATTRS = [
    'install_lib', 'install_dir', 'install_data', 'install_base'
]

def make_zipfile(zip_filename, base_dir, verbose=0, dry_run=0, compress=None,
    mode='w'
):
    """Create a zip file from all the files under 'base_dir'.  The output
    zip file will be named 'base_dir' + ".zip".  Uses either the "zipfile"
    Python module (if available) or the InfoZIP "zip" utility (if installed
    and found on the default search path).  If neither tool is available,
    raises DistutilsExecError.  Returns the name of the output zip file.
    """
    import zipfile
    mkpath(os.path.dirname(zip_filename), dry_run=dry_run)
    log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir)

    def visit(z, dirname, names):
        for name in names:
            path = os.path.normpath(os.path.join(dirname, name))
            if os.path.isfile(path):
                p = path[len(base_dir)+1:]
                if not dry_run:
                    z.write(path, p)
                log.debug("adding '%s'" % p)

    if compress is None:
        compress = (sys.version>="2.4") # avoid 2.3 zipimport bug when 64 bits

    compression = [zipfile.ZIP_STORED, zipfile.ZIP_DEFLATED][bool(compress)]
    if not dry_run:
        z = zipfile.ZipFile(zip_filename, mode, compression=compression)
        for dirname, dirs, files in os.walk(base_dir):
            visit(z, dirname, files)
        z.close()
    else:
        for dirname, dirs, files in os.walk(base_dir):
            visit(None, dirname, files)
    return zip_filename
#
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.