diff options
Diffstat (limited to 'Lib/distutils/file_util.py')
| -rw-r--r-- | Lib/distutils/file_util.py | 128 |
1 files changed, 63 insertions, 65 deletions
diff --git a/Lib/distutils/file_util.py b/Lib/distutils/file_util.py index 2d0148f..0e85a74 100644 --- a/Lib/distutils/file_util.py +++ b/Lib/distutils/file_util.py @@ -18,11 +18,11 @@ _copy_action = { None: 'copying', def _copy_file_contents (src, dst, buffer_size=16*1024): """Copy the file 'src' to 'dst'; both must be filenames. Any error - opening either file, reading from 'src', or writing to 'dst', - raises DistutilsFileError. Data is read/written in chunks of - 'buffer_size' bytes (default 16k). No attempt is made to handle - anything apart from regular files.""" - + opening either file, reading from 'src', or writing to 'dst', raises + DistutilsFileError. Data is read/written in chunks of 'buffer_size' + bytes (default 16k). No attempt is made to handle anything apart from + regular files. + """ # Stolen from shutil module in the standard library, but with # custom error-handling added. @@ -43,7 +43,7 @@ def _copy_file_contents (src, dst, buffer_size=16*1024): while 1: try: - buf = fsrc.read (buffer_size) + buf = fsrc.read(buffer_size) except os.error, (errno, errstr): raise DistutilsFileError, \ "could not read from '%s': %s" % (src, errstr) @@ -74,31 +74,29 @@ def copy_file (src, dst, verbose=0, dry_run=0): - """Copy a file 'src' to 'dst'. If 'dst' is a directory, then 'src' - is copied there with the same name; otherwise, it must be a - filename. (If the file exists, it will be ruthlessly clobbered.) - If 'preserve_mode' is true (the default), the file's mode (type - and permission bits, or whatever is analogous on the current - platform) is copied. If 'preserve_times' is true (the default), - the last-modified and last-access times are copied as well. If - 'update' is true, 'src' will only be copied if 'dst' does not - exist, or if 'dst' does exist but is older than 'src'. If - 'verbose' is true, then a one-line summary of the copy will be - printed to stdout. - - 'link' allows you to make hard links (os.link) or symbolic links - (os.symlink) instead of copying: set it to "hard" or "sym"; if it - is None (the default), files are copied. Don't set 'link' on - systems that don't support it: 'copy_file()' doesn't check if - hard or symbolic linking is available. - - Under Mac OS, uses the native file copy function in macostools; - on other systems, uses '_copy_file_contents()' to copy file - contents. - - Return the name of the destination file, whether it was actually - copied or not.""" - + """Copy a file 'src' to 'dst'. If 'dst' is a directory, then 'src' is + copied there with the same name; otherwise, it must be a filename. (If + the file exists, it will be ruthlessly clobbered.) If 'preserve_mode' + is true (the default), the file's mode (type and permission bits, or + whatever is analogous on the current platform) is copied. If + 'preserve_times' is true (the default), the last-modified and + last-access times are copied as well. If 'update' is true, 'src' will + only be copied if 'dst' does not exist, or if 'dst' does exist but is + older than 'src'. If 'verbose' is true, then a one-line summary of the + copy will be printed to stdout. + + 'link' allows you to make hard links (os.link) or symbolic links + (os.symlink) instead of copying: set it to "hard" or "sym"; if it is + None (the default), files are copied. Don't set 'link' on systems that + don't support it: 'copy_file()' doesn't check if hard or symbolic + linking is available. + + Under Mac OS, uses the native file copy function in macostools; on + other systems, uses '_copy_file_contents()' to copy file contents. + + Return the name of the destination file, whether it was actually copied + or not. + """ # XXX if the destination file already exists, we clobber it if # copying, but blow up if linking. Hmmm. And I don't know what # macostools.copyfile() does. Should definitely be consistent, and @@ -109,17 +107,17 @@ def copy_file (src, dst, from stat import * from distutils.dep_util import newer - if not os.path.isfile (src): + if not os.path.isfile(src): raise DistutilsFileError, \ "can't copy '%s': doesn't exist or not a regular file" % src - if os.path.isdir (dst): + if os.path.isdir(dst): dir = dst - dst = os.path.join (dst, os.path.basename (src)) + dst = os.path.join(dst, os.path.basename(src)) else: - dir = os.path.dirname (dst) + dir = os.path.dirname(dst) - if update and not newer (src, dst): + if update and not newer(src, dst): if verbose: print "not copying %s (output up-to-date)" % src return dst @@ -142,7 +140,7 @@ def copy_file (src, dst, if os.name == 'mac': import macostools try: - macostools.copy (src, dst, 0, preserve_times) + macostools.copy(src, dst, 0, preserve_times) except os.error, exc: raise DistutilsFileError, \ "could not copy '%s' to '%s': %s" % (src, dst, exc[-1]) @@ -150,25 +148,25 @@ def copy_file (src, dst, # If linking (hard or symbolic), use the appropriate system call # (Unix only, of course, but that's the caller's responsibility) elif link == 'hard': - if not (os.path.exists (dst) and os.path.samefile (src, dst)): - os.link (src, dst) + if not (os.path.exists(dst) and os.path.samefile(src, dst)): + os.link(src, dst) elif link == 'sym': - if not (os.path.exists (dst) and os.path.samefile (src, dst)): - os.symlink (src, dst) + if not (os.path.exists(dst) and os.path.samefile(src, dst)): + os.symlink(src, dst) # Otherwise (non-Mac, not linking), copy the file contents and # (optionally) copy the times and mode. else: - _copy_file_contents (src, dst) + _copy_file_contents(src, dst) if preserve_mode or preserve_times: - st = os.stat (src) + st = os.stat(src) # According to David Ascher <da@ski.org>, utime() should be done # before chmod() (at least under NT). if preserve_times: - os.utime (dst, (st[ST_ATIME], st[ST_MTIME])) + os.utime(dst, (st[ST_ATIME], st[ST_MTIME])) if preserve_mode: - os.chmod (dst, S_IMODE (st[ST_MODE])) + os.chmod(dst, S_IMODE(st[ST_MODE])) return dst @@ -180,13 +178,13 @@ def move_file (src, dst, verbose=0, dry_run=0): - """Move a file 'src' to 'dst'. If 'dst' is a directory, the file - will be moved into it with the same name; otherwise, 'src' is - just renamed to 'dst'. Return the new full name of the file. - - Handles cross-device moves on Unix using - 'copy_file()'. What about other systems???""" + """Move a file 'src' to 'dst'. If 'dst' is a directory, the file will + be moved into it with the same name; otherwise, 'src' is just renamed + to 'dst'. Return the new full name of the file. + Handles cross-device moves on Unix using 'copy_file()'. What about + other systems??? + """ from os.path import exists, isfile, isdir, basename, dirname if verbose: @@ -195,25 +193,25 @@ def move_file (src, dst, if dry_run: return dst - if not isfile (src): + if not isfile(src): raise DistutilsFileError, \ "can't move '%s': not a regular file" % src - if isdir (dst): - dst = os.path.join (dst, basename (src)) - elif exists (dst): + if isdir(dst): + dst = os.path.join(dst, basename(src)) + elif exists(dst): raise DistutilsFileError, \ "can't move '%s': destination '%s' already exists" % \ (src, dst) - if not isdir (dirname (dst)): + if not isdir(dirname(dst)): raise DistutilsFileError, \ "can't move '%s': destination '%s' not a valid path" % \ (src, dst) copy_it = 0 try: - os.rename (src, dst) + os.rename(src, dst) except os.error, (num, msg): if num == errno.EXDEV: copy_it = 1 @@ -222,12 +220,12 @@ def move_file (src, dst, "couldn't move '%s' to '%s': %s" % (src, dst, msg) if copy_it: - copy_file (src, dst) + copy_file(src, dst) try: - os.unlink (src) + os.unlink(src) except os.error, (num, msg): try: - os.unlink (dst) + os.unlink(dst) except os.error: pass raise DistutilsFileError, \ @@ -242,9 +240,9 @@ def move_file (src, dst, def write_file (filename, contents): """Create a file with the specified name and write 'contents' (a - sequence of strings without line terminators) to it.""" - - f = open (filename, "w") + sequence of strings without line terminators) to it. + """ + f = open(filename, "w") for line in contents: - f.write (line + "\n") - f.close () + f.write(line + "\n") + f.close() |