1 """distutils.command.install 2 3 Implements the Distutils 'install' command.""" 4 5 import sys 6 import os 7 8 from distutils import log 9 from distutils.core import Command 10 from distutils.debug import DEBUG 11 from distutils.sysconfig import get_config_vars 12 from distutils.errors import DistutilsPlatformError 13 from distutils.file_util import write_file 14 from distutils.util import convert_path, subst_vars, change_root 15 from distutils.util import get_platform 16 from distutils.errors import DistutilsOptionError 17 18 from site import USER_BASE 19 from site import USER_SITE 20 HAS_USER_SITE = True 21 22 WINDOWS_SCHEME = { 23 'purelib': '$base/Lib/site-packages', 24 'platlib': '$base/Lib/site-packages', 25 'headers': '$base/Include/$dist_name', 26 'scripts': '$base/Scripts', 27 'data' : '$base', 28 } 29 30 INSTALL_SCHEMES = { 31 'unix_prefix': { 32 'purelib': '$base/lib/python$py_version_short/site-packages', 33 'platlib': '$platbase/lib/python$py_version_short/site-packages', 34 'headers': '$base/include/python$py_version_short$abiflags/$dist_name', 35 'scripts': '$base/bin', 36 'data' : '$base', 37 }, 38 'unix_home': { 39 'purelib': '$base/lib/python', 40 'platlib': '$base/lib/python', 41 'headers': '$base/include/python/$dist_name', 42 'scripts': '$base/bin', 43 'data' : '$base', 44 }, 45 'nt': WINDOWS_SCHEME, 46 } 47 48 # user site schemes 49 if HAS_USER_SITE: 50 INSTALL_SCHEMES['nt_user'] = { 51 'purelib': '$usersite', 52 'platlib': '$usersite', 53 'headers': '$userbase/Python$py_version_nodot/Include/$dist_name', 54 'scripts': '$userbase/Python$py_version_nodot/Scripts', 55 'data' : '$userbase', 56 } 57 58 INSTALL_SCHEMES['unix_user'] = { 59 'purelib': '$usersite', 60 'platlib': '$usersite', 61 'headers': 62 '$userbase/include/python$py_version_short$abiflags/$dist_name', 63 'scripts': '$userbase/bin', 64 'data' : '$userbase', 65 } 66 67 # The keys to an installation scheme; if any new types of files are to be 68 # installed, be sure to add an entry to every installation scheme above, 69 # and to SCHEME_KEYS here. 70 SCHEME_KEYS = ('purelib', 'platlib', 'headers', 'scripts', 'data') 71 72 73 class install(Command): 74 75 description = "install everything from build directory" 76 77 user_options = [ 78 # Select installation scheme and set base director(y|ies) 79 ('prefix=', None, 80 "installation prefix"), 81 ('exec-prefix=', None, 82 "(Unix only) prefix for platform-specific files"), 83 ('home=', None, 84 "(Unix only) home directory to install under"), 85 86 # Or, just set the base director(y|ies) 87 ('install-base=', None, 88 "base installation directory (instead of --prefix or --home)"), 89 ('install-platbase=', None, 90 "base installation directory for platform-specific files " + 91 "(instead of --exec-prefix or --home)"), 92 ('root=', None, 93 "install everything relative to this alternate root directory"), 94 95 # Or, explicitly set the installation scheme 96 ('install-purelib=', None, 97 "installation directory for pure Python module distributions"), 98 ('install-platlib=', None, 99 "installation directory for non-pure module distributions"), 100 ('install-lib=', None, 101 "installation directory for all module distributions " + 102 "(overrides --install-purelib and --install-platlib)"), 103 104 ('install-headers=', None, 105 "installation directory for C/C++ headers"), 106 ('install-scripts=', None, 107 "installation directory for Python scripts"), 108 ('install-data=', None, 109 "installation directory for data files"), 110 111 # Byte-compilation options -- see install_lib.py for details, as 112 # these are duplicated from there (but only install_lib does 113 # anything with them). 114 ('compile', 'c', "compile .py to .pyc [default]"), 115 ('no-compile', None, "don't compile .py files"), 116 ('optimize=', 'O', 117 "also compile with optimization: -O1 for \"python -O\", " 118 "-O2 for \"python -OO\", and -O0 to disable [default: -O0]"), 119 120 # Miscellaneous control options 121 ('force', 'f', 122 "force installation (overwrite any existing files)"), 123 ('skip-build', None, 124 "skip rebuilding everything (for testing/debugging)"), 125 126 # Where to install documentation (eventually!) 127 #('doc-format=', None, "format of documentation to generate"), 128 #('install-man=', None, "directory for Unix man pages"), 129 #('install-html=', None, "directory for HTML documentation"), 130 #('install-info=', None, "directory for GNU info files"), 131 132 ('record=', None, 133 "filename in which to record list of installed files"), 134 ] 135 136 boolean_options = ['compile', 'force', 'skip-build'] 137 138 if HAS_USER_SITE: 139 user_options.append(('user', None, 140 "install in user site-package '%s'" % USER_SITE)) 141 boolean_options.append('user') 142 143 negative_opt = {'no-compile' : 'compile'} 144 145 146 def initialize_options(self): 147 """Initializes options.""" 148 # High-level options: these select both an installation base 149 # and scheme. 150 self.prefix = None 151 self.exec_prefix = None 152 self.home = None 153 self.user = 0 154 155 # These select only the installation base; it's up to the user to 156 # specify the installation scheme (currently, that means supplying 157 # the --install-{platlib,purelib,scripts,data} options). 158 self.install_base = None 159 self.install_platbase = None 160 self.root = None 161 162 # These options are the actual installation directories; if not 163 # supplied by the user, they are filled in using the installation 164 # scheme implied by prefix/exec-prefix/home and the contents of 165 # that installation scheme. 166 self.install_purelib = None # for pure module distributions 167 self.install_platlib = None # non-pure (dists w/ extensions) 168 self.install_headers = None # for C/C++ headers 169 self.install_lib = None # set to either purelib or platlib 170 self.install_scripts = None 171 self.install_data = None 172 self.install_userbase = USER_BASE 173 self.install_usersite = USER_SITE 174 175 self.compile = None 176 self.optimize = None 177 178 # Deprecated 179 # These two are for putting non-packagized distributions into their 180 # own directory and creating a .pth file if it makes sense. 181 # 'extra_path' comes from the setup file; 'install_path_file' can 182 # be turned off if it makes no sense to install a .pth file. (But 183 # better to install it uselessly than to guess wrong and not 184 # install it when it's necessary and would be used!) Currently, 185 # 'install_path_file' is always true unless some outsider meddles 186 # with it. 187 self.extra_path = None 188 self.install_path_file = 1 189 190 # 'force' forces installation, even if target files are not 191 # out-of-date. 'skip_build' skips running the "build" command, 192 # handy if you know it's not necessary. 'warn_dir' (which is *not* 193 # a user option, it's just there so the bdist_* commands can turn 194 # it off) determines whether we warn about installing to a 195 # directory not in sys.path. 196 self.force = 0 197 self.skip_build = 0 198 self.warn_dir = 1 199 200 # These are only here as a conduit from the 'build' command to the 201 # 'install_*' commands that do the real work. ('build_base' isn't 202 # actually used anywhere, but it might be useful in future.) They 203 # are not user options, because if the user told the install 204 # command where the build directory is, that wouldn't affect the 205 # build command. 206 self.build_base = None 207 self.build_lib = None 208 209 # Not defined yet because we don't know anything about 210 # documentation yet. 211 #self.install_man = None 212 #self.install_html = None 213 #self.install_info = None 214 215 self.record = None 216 217 218 # -- Option finalizing methods ------------------------------------- 219 # (This is rather more involved than for most commands, 220 # because this is where the policy for installing third- 221 # party Python modules on various platforms given a wide 222 # array of user input is decided. Yes, it's quite complex!) 223 224 def finalize_options(self): 225 """Finalizes options.""" 226 # This method (and its pliant slaves, like 'finalize_unix()', 227 # 'finalize_other()', and 'select_scheme()') is where the default 228 # installation directories for modules, extension modules, and 229 # anything else we care to install from a Python module 230 # distribution. Thus, this code makes a pretty important policy 231 # statement about how third-party stuff is added to a Python 232 # installation! Note that the actual work of installation is done 233 # by the relatively simple 'install_*' commands; they just take 234 # their orders from the installation directory options determined 235 # here. 236 237 # Check for errors/inconsistencies in the options; first, stuff 238 # that's wrong on any platform. 239 240 if ((self.prefix or self.exec_prefix or self.home) and 241 (self.install_base or self.install_platbase)): 242 raise DistutilsOptionError( 243 "must supply either prefix/exec-prefix/home or " + 244 "install-base/install-platbase -- not both") 245 246 if self.home and (self.prefix or self.exec_prefix): 247 raise DistutilsOptionError( 248 "must supply either home or prefix/exec-prefix -- not both") 249 250 if self.user and (self.prefix or self.exec_prefix or self.home or 251 self.install_base or self.install_platbase): 252 raise DistutilsOptionError("can't combine user with prefix, " 253 "exec_prefix/home, or install_(plat)base") 254 255 # Next, stuff that's wrong (or dubious) only on certain platforms. 256 if os.name != "posix": 257 if self.exec_prefix: 258 self.warn("exec-prefix option ignored on this platform") 259 self.exec_prefix = None 260 261 # Now the interesting logic -- so interesting that we farm it out 262 # to other methods. The goal of these methods is to set the final 263 # values for the install_{lib,scripts,data,...} options, using as 264 # input a heady brew of prefix, exec_prefix, home, install_base, 265 # install_platbase, user-supplied versions of 266 # install_{purelib,platlib,lib,scripts,data,...}, and the 267 # INSTALL_SCHEME dictionary above. Phew! 268 269 self.dump_dirs("pre-finalize_{unix,other}") 270 271 if os.name == 'posix': 272 self.finalize_unix() 273 else: 274 self.finalize_other() 275 276 self.dump_dirs("post-finalize_{unix,other}()") 277 278 # Expand configuration variables, tilde, etc. in self.install_base 279 # and self.install_platbase -- that way, we can use $base or 280 # $platbase in the other installation directories and not worry 281 # about needing recursive variable expansion (shudder). 282 283 py_version = sys.version.split()[0] 284 (prefix, exec_prefix) = get_config_vars('prefix', 'exec_prefix') 285 try: 286 abiflags = sys.abiflags 287 except AttributeError: 288 # sys.abiflags may not be defined on all platforms. 289 abiflags = '' 290 self.config_vars = {'dist_name': self.distribution.get_name(), 291 'dist_version': self.distribution.get_version(), 292 'dist_fullname': self.distribution.get_fullname(), 293 'py_version': py_version, 294 'py_version_short': '%d.%d' % sys.version_info[:2], 295 'py_version_nodot': '%d%d' % sys.version_info[:2], 296 'sys_prefix': prefix, 297 'prefix': prefix, 298 'sys_exec_prefix': exec_prefix, 299 'exec_prefix': exec_prefix, 300 'abiflags': abiflags, 301 } 302 303 if HAS_USER_SITE: 304 self.config_vars['userbase'] = self.install_userbase 305 self.config_vars['usersite'] = self.install_usersite 306 307 self.expand_basedirs() 308 309 self.dump_dirs("post-expand_basedirs()") 310 311 # Now define config vars for the base directories so we can expand 312 # everything else. 313 self.config_vars['base'] = self.install_base 314 self.config_vars['platbase'] = self.install_platbase 315 316 if DEBUG: 317 from pprint import pprint 318 print("config vars:") 319 pprint(self.config_vars) 320 321 # Expand "~" and configuration variables in the installation 322 # directories. 323 self.expand_dirs() 324 325 self.dump_dirs("post-expand_dirs()") 326 327 # Create directories in the home dir: 328 if self.user: 329 self.create_home_path() 330 331 # Pick the actual directory to install all modules to: either 332 # install_purelib or install_platlib, depending on whether this 333 # module distribution is pure or not. Of course, if the user 334 # already specified install_lib, use their selection. 335 if self.install_lib is None: 336 if self.distribution.ext_modules: # has extensions: non-pure 337 self.install_lib = self.install_platlib 338 else: 339 self.install_lib = self.install_purelib 340 341 342 # Convert directories from Unix /-separated syntax to the local 343 # convention. 344 self.convert_paths('lib', 'purelib', 'platlib', 345 'scripts', 'data', 'headers', 346 'userbase', 'usersite') 347 348 # Deprecated 349 # Well, we're not actually fully completely finalized yet: we still 350 # have to deal with 'extra_path', which is the hack for allowing 351 # non-packagized module distributions (hello, Numerical Python!) to 352 # get their own directories. 353 self.handle_extra_path() 354 self.install_libbase = self.install_lib # needed for .pth file 355 self.install_lib = os.path.join(self.install_lib, self.extra_dirs) 356 357 # If a new root directory was supplied, make all the installation 358 # dirs relative to it. 359 if self.root is not None: 360 self.change_roots('libbase', 'lib', 'purelib', 'platlib', 361 'scripts', 'data', 'headers') 362 363 self.dump_dirs("after prepending root") 364 365 # Find out the build directories, ie. where to install from. 366 self.set_undefined_options('build', 367 ('build_base', 'build_base'), 368 ('build_lib', 'build_lib')) 369 370 # Punt on doc directories for now -- after all, we're punting on 371 # documentation completely! 372 373 def dump_dirs(self, msg): 374 """Dumps the list of user options.""" 375 if not DEBUG: 376 return 377 from distutils.fancy_getopt import longopt_xlate 378 log.debug(msg + ":") 379 for opt in self.user_options: 380 opt_name = opt[0] 381 if opt_name[-1] == "=": 382 opt_name = opt_name[0:-1] 383 if opt_name in self.negative_opt: 384 opt_name = self.negative_opt[opt_name] 385 opt_name = opt_name.translate(longopt_xlate) 386 val = not getattr(self, opt_name) 387 else: 388 opt_name = opt_name.translate(longopt_xlate) 389 val = getattr(self, opt_name) 390 log.debug(" %s: %s", opt_name, val) 391 392 def finalize_unix(self): 393 """Finalizes options for posix platforms.""" 394 if self.install_base is not None or self.install_platbase is not None: 395 if ((self.install_lib is None and 396 self.install_purelib is None and 397 self.install_platlib is None) or 398 self.install_headers is None or 399 self.install_scripts is None or 400 self.install_data is None): 401 raise DistutilsOptionError( 402 "install-base or install-platbase supplied, but " 403 "installation scheme is incomplete") 404 return 405 406 if self.user: 407 if self.install_userbase is None: 408 raise DistutilsPlatformError( 409 "User base directory is not specified") 410 self.install_base = self.install_platbase = self.install_userbase 411 self.select_scheme("unix_user") 412 elif self.home is not None: 413 self.install_base = self.install_platbase = self.home 414 self.select_scheme("unix_home") 415 else: 416 if self.prefix is None: 417 if self.exec_prefix is not None: 418 raise DistutilsOptionError( 419 "must not supply exec-prefix without prefix") 420 421 self.prefix = os.path.normpath(sys.prefix) 422 self.exec_prefix = os.path.normpath(sys.exec_prefix) 423 424 else: 425 if self.exec_prefix is None: 426 self.exec_prefix = self.prefix 427 428 self.install_base = self.prefix 429 self.install_platbase = self.exec_prefix 430 self.select_scheme("unix_prefix") 431 432 def finalize_other(self): 433 """Finalizes options for non-posix platforms""" 434 if self.user: 435 if self.install_userbase is None: 436 raise DistutilsPlatformError( 437 "User base directory is not specified") 438 self.install_base = self.install_platbase = self.install_userbase 439 self.select_scheme(os.name + "_user") 440 elif self.home is not None: 441 self.install_base = self.install_platbase = self.home 442 self.select_scheme("unix_home") 443 else: 444 if self.prefix is None: 445 self.prefix = os.path.normpath(sys.prefix) 446 447 self.install_base = self.install_platbase = self.prefix 448 try: 449 self.select_scheme(os.name) 450 except KeyError: 451 raise DistutilsPlatformError( 452 "I don't know how to install stuff on '%s'" % os.name) 453 454 def select_scheme(self, name): 455 """Sets the install directories by applying the install schemes.""" 456 # it's the caller's problem if they supply a bad name! 457 scheme = INSTALL_SCHEMES[name] 458 for key in SCHEME_KEYS: 459 attrname = 'install_' + key 460 if getattr(self, attrname) is None: 461 setattr(self, attrname, scheme[key]) 462 463 def _expand_attrs(self, attrs): 464 for attr in attrs: 465 val = getattr(self, attr) 466 if val is not None: 467 if os.name == 'posix' or os.name == 'nt': 468 val = os.path.expanduser(val) 469 val = subst_vars(val, self.config_vars) 470 setattr(self, attr, val) 471 472 def expand_basedirs(self): 473 """Calls `os.path.expanduser` on install_base, install_platbase and 474 root.""" 475 self._expand_attrs(['install_base', 'install_platbase', 'root']) 476 477 def expand_dirs(self): 478 """Calls `os.path.expanduser` on install dirs.""" 479 self._expand_attrs(['install_purelib', 'install_platlib', 480 'install_lib', 'install_headers', 481 'install_scripts', 'install_data',]) 482 483 def convert_paths(self, *names): 484 """Call `convert_path` over `names`.""" 485 for name in names: 486 attr = "install_" + name 487 setattr(self, attr, convert_path(getattr(self, attr))) 488 489 def handle_extra_path(self): 490 """Set `path_file` and `extra_dirs` using `extra_path`.""" 491 if self.extra_path is None: 492 self.extra_path = self.distribution.extra_path 493 494 if self.extra_path is not None: 495 log.warn( 496 "Distribution option extra_path is deprecated. " 497 "See issue27919 for details." 498 ) 499 if isinstance(self.extra_path, str): 500 self.extra_path = self.extra_path.split(',') 501 502 if len(self.extra_path) == 1: 503 path_file = extra_dirs = self.extra_path[0] 504 elif len(self.extra_path) == 2: 505 path_file, extra_dirs = self.extra_path 506 else: 507 raise DistutilsOptionError( 508 "'extra_path' option must be a list, tuple, or " 509 "comma-separated string with 1 or 2 elements") 510 511 # convert to local form in case Unix notation used (as it 512 # should be in setup scripts) 513 extra_dirs = convert_path(extra_dirs) 514 else: 515 path_file = None 516 extra_dirs = '' 517 518 # XXX should we warn if path_file and not extra_dirs? (in which 519 # case the path file would be harmless but pointless) 520 self.path_file = path_file 521 self.extra_dirs = extra_dirs 522 523 def change_roots(self, *names): 524 """Change the install directories pointed by name using root.""" 525 for name in names: 526 attr = "install_" + name 527 setattr(self, attr, change_root(self.root, getattr(self, attr))) 528 529 def create_home_path(self): 530 """Create directories under ~.""" 531 if not self.user: 532 return 533 home = convert_path(os.path.expanduser("~")) 534 for name, path in self.config_vars.items(): 535 if path.startswith(home) and not os.path.isdir(path): 536 self.debug_print("os.makedirs('%s', 0o700)" % path) 537 os.makedirs(path, 0o700) 538 539 # -- Command execution methods ------------------------------------- 540 541 def run(self): 542 """Runs the command.""" 543 # Obviously have to build before we can install 544 if not self.skip_build: 545 self.run_command('build') 546 # If we built for any other platform, we can't install. 547 build_plat = self.distribution.get_command_obj('build').plat_name 548 # check warn_dir - it is a clue that the 'install' is happening 549 # internally, and not to sys.path, so we don't check the platform 550 # matches what we are running. 551 if self.warn_dir and build_plat != get_platform(): 552 raise DistutilsPlatformError("Can't install when " 553 "cross-compiling") 554 555 # Run all sub-commands (at least those that need to be run) 556 for cmd_name in self.get_sub_commands(): 557 self.run_command(cmd_name) 558 559 if self.path_file: 560 self.create_path_file() 561 562 # write list of installed files, if requested. 563 if self.record: 564 outputs = self.get_outputs() 565 if self.root: # strip any package prefix 566 root_len = len(self.root) 567 for counter in range(len(outputs)): 568 outputs[counter] = outputs[counter][root_len:] 569 self.execute(write_file, 570 (self.record, outputs), 571 "writing list of installed files to '%s'" % 572 self.record) 573 574 sys_path = map(os.path.normpath, sys.path) 575 sys_path = map(os.path.normcase, sys_path) 576 install_lib = os.path.normcase(os.path.normpath(self.install_lib)) 577 if (self.warn_dir and 578 not (self.path_file and self.install_path_file) and 579 install_lib not in sys_path): 580 log.debug(("modules installed to '%s', which is not in " 581 "Python's module search path (sys.path) -- " 582 "you'll have to change the search path yourself"), 583 self.install_lib) 584 585 def create_path_file(self): 586 """Creates the .pth file""" 587 filename = os.path.join(self.install_libbase, 588 self.path_file + ".pth") 589 if self.install_path_file: 590 self.execute(write_file, 591 (filename, [self.extra_dirs]), 592 "creating %s" % filename) 593 else: 594 self.warn("path file '%s' not created" % filename) 595 596 597 # -- Reporting methods --------------------------------------------- 598 599 def get_outputs(self): 600 """Assembles the outputs of all the sub-commands.""" 601 outputs = [] 602 for cmd_name in self.get_sub_commands(): 603 cmd = self.get_finalized_command(cmd_name) 604 # Add the contents of cmd.get_outputs(), ensuring 605 # that outputs doesn't contain duplicate entries 606 for filename in cmd.get_outputs(): 607 if filename not in outputs: 608 outputs.append(filename) 609 610 if self.path_file and self.install_path_file: 611 outputs.append(os.path.join(self.install_libbase, 612 self.path_file + ".pth")) 613 614 return outputs 615 616 def get_inputs(self): 617 """Returns the inputs of all the sub-commands""" 618 # XXX gee, this looks familiar ;-( 619 inputs = [] 620 for cmd_name in self.get_sub_commands(): 621 cmd = self.get_finalized_command(cmd_name) 622 inputs.extend(cmd.get_inputs()) 623 624 return inputs 625 626 # -- Predicates for sub-command list ------------------------------- 627 628 def has_lib(self): 629 """Returns true if the current distribution has any Python 630 modules to install.""" 631 return (self.distribution.has_pure_modules() or 632 self.distribution.has_ext_modules()) 633 634 def has_headers(self): 635 """Returns true if the current distribution has any headers to 636 install.""" 637 return self.distribution.has_headers() 638 639 def has_scripts(self): 640 """Returns true if the current distribution has any scripts to. 641 install.""" 642 return self.distribution.has_scripts() 643 644 def has_data(self): 645 """Returns true if the current distribution has any data to. 646 install.""" 647 return self.distribution.has_data_files() 648 649 # 'sub_commands': a list of commands this command might have to run to 650 # get its work done. See cmd.py for more info. 651 sub_commands = [('install_lib', has_lib), 652 ('install_headers', has_headers), 653 ('install_scripts', has_scripts), 654 ('install_data', has_data), 655 ('install_egg_info', lambda self:True), 656 ] 657
