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Miscellaneous utility functions -- anything that doesn't fit into
one of the other *util.py modules.
s1 $Id: util.py 36560 2004-07-18 06:16:08Z tim_one $N( s DistutilsPlatformError( s newer( s spawn( s logc C s t i d j p t t d o t i Sn t i \ } } } } } t i | } t i
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} d t | d d | d f } qn | d d j o d | | f Snw | d d j o d | | | f SnQ | d d j o? d } t i d } | i | } | o | i } qn d | | | f S( s Return a string that identifies the current platform. This is used
mainly to distinguish platform-specific build directories and
platform-specific built distributions. Typically includes the OS name
and version and the architecture (as supplied by 'os.uname()'),
although the exact information included depends on the OS; eg. for IRIX
the architecture isn't particularly important (IRIX only runs on SGI
hardware), but for Linux the kernel version isn't particularly
important.
Examples of returned values:
linux-i586
linux-alpha (?)
solaris-2.6-sun4u
irix-5.3
irix64-6.2
For non-POSIX platforms, currently just returns 'sys.platform'.
t posixt unamet /t t t _i t linuxs %s-%st sunosi t 5t solariss %d.%si i i t irixt aixs %s-%s.%si t cygwins [\d.]+s %s-%s-%sN( t ost namet hasattrt syst platformR t osnamet hostt releaset versiont machinet stringt lowert replacet intt ret compilet rel_ret matcht mt group( R R R R R R R ( ( t& /usr/lib64/python2.4/distutils/util.pyt get_platform s0 ! *c C s t i d j o | Sn | p | Sn | d d j o t d | n | d d j o t d | n t i | d } x d | j o | i d q W| p t i Sn t t i
i | S( s Return 'pathname' as a name that will work on the native filesystem,
i.e. split it on '/' and put it back together again using the current
directory separator. Needed because filenames in the setup script are
always supplied in Unix style, and have to be converted to the local
convention before we can actually use them in the filesystem. Raises
ValueError on non-Unix-ish systems if 'pathname' either starts or
ends with a slash.
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c C s t i d j oE t i i | p t i i | | Sqt i i | | d SnDt i d j oN t i i | \ } } | d d j o | d } n t i i | | Sn t i d j oQ t i i | \ } } | d t i j o | d } n t i i | | Sn t i d j od t i i | p t i i | | Sqt
i | d d } d | d } t i i | | Sn t
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S( s Return 'pathname' with 'new_root' prepended. If 'pathname' is
relative, this is equivalent to "os.path.join(new_root,pathname)".
Otherwise, it requires making 'pathname' relative and then joining the
two, which is tricky on DOS/Windows and Mac OS.
R i t nti s \t os2t mact :s! nothing known about platform '%s'N( R
R R, t isabsR% R- t new_roott
splitdrivet driveR$ R R' t elementst DistutilsPlatformError( R4 R% R7 R6 R, ( ( R! t change_rootg s, i c C s t o d Sn t i d j oA t i i d o- d k } | i t i d t i d <n t i i d p t t i d <n d a d S( sL Ensure that 'os.environ' has all the environment variables we
guarantee that users can use in config files, command-line options,
etc. Currently this includes:
HOME - user's home directory (Unix only)
PLAT - description of the current platform, including hardware
and OS (see 'get_platform()')
NR t HOMEi t PLATi ( t _environ_checkedR
R t environt has_keyt pwdt getpwuidt getuidR" ( R? ( ( R! t
check_environ s $ $c C sS t | d } y t i d | | SWn" t j
o } t d | n Xd S( s Perform shell/Perl-style variable substitution on 'string'. Every
occurrence of '$' followed by a name is considered a variable, and
variable is substituted by the value found in the 'local_vars'
dictionary, or in 'os.environ' if it's not in 'local_vars'.
'os.environ' is first checked/augmented to guarantee that it contains
certain values: see 'check_environ()'. Raise ValueError for any
variables not found in either 'local_vars' or 'os.environ'.
c C s@ | i d } | i | o t | | Sn t i | Sd S( Ni ( R R t var_namet
local_varsR> t strR
R= ( R RD RC ( ( R! t _subst s s \$([a-zA-Z_][a-zA-Z_0-9]*)s invalid variable '$%s'N( RB RD RF R t subt st KeyErrort varR& ( RH RD RJ RF ( ( R! t
subst_vars s s error: c C su t | d oM t | d o= | i o | d | i | i f } qq | d | i } n | t | d } | S( s Generate a useful error message from an EnvironmentError (IOError or
OSError) exception object. Handles Python 1.5.1 and 1.5.2 styles, and
does what it can to deal with exception objects that don't have a
filename (which happens when the error is due to a two-file operation,
such as 'rename()' or 'link()'. Returns the error message as a string
prefixed with 'prefix'.
t filenamet strerrors %s: %ss %siN( R t excRL t prefixRM t errorRE ( RN RO RP ( ( R! t grok_environment_error s
c C s8 t i d t i a t i d a t i d a d S( Ns
[^\\\'\"%s ]*s '(?:[^'\\]|\\.)*'s "(?:[^"\\]|\\.)*"( R R R t
whitespacet
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} | t | j o | i | | Pn | | t i
j o. | i | | t i | | } d } n | | d j o$ | | | | d } | d } n | | d j o t i | | } n9 | | d j o t i | | } n t d | | | d j o t d | | n | i \ } } | | | | d | d !| | } | i
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s Split a string up according to Unix shell-like rules for quotes and
backslashes. In short: words are delimited by spaces, as long as those
spaces are not escaped by a backslash, or inside a quoted string.
Single and double quotes are equivalent, and the quote characters can
be backslash-escaped. The backslash is stripped from any two-character
escape sequence, leaving only the escaped character. The quote
characters are stripped from any quoted string. Returns a list of
words.
i s \i t 't "s! this can't happen (bad char '%c')s" bad string (mismatched %s quotes?)i N( RS t NoneRV R t stripRH t wordst posR R t endt lent appendRR t lstripRT RU t RuntimeErrorR& t spant beg( RH R] Rc R R\ R[ ( ( R! t split_quoted sD
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c C ss | d j o= d | i | f } | d d j o | d d !d } qJ n t i | | p t | | n d S( s Perform some action that affects the outside world (eg. by
writing to the filesystem). Such actions are special because they
are disabled by the 'dry_run' flag. This method takes care of all
that bureaucracy for you; all you have to do is supply the
function to call and an argument tuple for it (to embody the
"external action" being performed), and an optional message to
print.
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c C sM t i | } | d j o d Sn& | d j o d Sn t d | f d S( s Convert a string representation of truth to true (1) or false (0).
True values are 'y', 'yes', 't', 'true', 'on', and '1'; false values
are 'n', 'no', 'f', 'false', 'off', and '0'. Raises ValueError if
'val' is anything else.
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i. d | | qqWd S( s Byte-compile a collection of Python source files to either .pyc
or .pyo files in the same directory. 'py_files' is a list of files
to compile; any files that don't end in ".py" are silently skipped.
'optimize' must be one of the following:
0 - don't optimize (generate .pyc)
1 - normal optimization (like "python -O")
2 - extra optimization (like "python -OO")
If 'force' is true, all files are recompiled regardless of
timestamps.
The source filename encoded in each bytecode file defaults to the
filenames listed in 'py_files'; you can modify these with 'prefix' and
'basedir'. 'prefix' is a string that will be stripped off of each
source filename, and 'base_dir' is a directory name that will be
prepended (after 'prefix' is stripped). You can supply either or both
(or neither) of 'prefix' and 'base_dir', as you wish.
If 'dry_run' is true, doesn't actually do anything that would
affect the filesystem.
Byte-compilation is either done directly in this interpreter process
with the standard py_compile module, or indirectly by writing a
temporary script and executing it. Normally, you should let
'byte_compile()' figure out to use direct compilation or not (see
the source for details). The 'direct' flag is used by the script
generated in indirect mode; unless you know what you're doing, leave
it set to None.
i ( s mkstemps .py( s mktemps$ writing byte-compilation script '%s't ws2 from distutils.util import byte_compile
files = [
s ,
s ]
s
byte_compile(files, optimize=%r, force=%r,
prefix=%r, base_dir=%r,
verbose=%r, dry_run=0,
direct=1)
i s -Oi s -OORl s removing %s( s compileit ct os1 invalid prefix: filename %r doesn't start with %rs byte-compiling %s to %ss% skipping byte-compilation of %s to %sN(/ t directRY t __debug__t optimizet tempfilet mkstempt script_fdt script_namet ImportErrort mktempRj Rk Rl R
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c C sB t i | d } t t i | } t i | d d d } | S( s Return a version of the string escaped for inclusion in an
RFC-822 header, by ensuring there are 8 spaces space after each newline.
s
i R N( R R' t headert linesR RZ R- ( R R ( ( R! t
rfc822_escape s
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