symbian-qemu-0.9.1-12/python-2.6.1/Lib/distutils/dir_util.py
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/distutils/dir_util.py	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,227 @@
+"""distutils.dir_util
+
+Utility functions for manipulating directories and directory trees."""
+
+# This module should be kept compatible with Python 2.1.
+
+__revision__ = "$Id: dir_util.py 60923 2008-02-21 18:18:37Z guido.van.rossum $"
+
+import os, sys
+from types import *
+from distutils.errors import DistutilsFileError, DistutilsInternalError
+from distutils import log
+
+# cache for by mkpath() -- in addition to cheapening redundant calls,
+# eliminates redundant "creating /foo/bar/baz" messages in dry-run mode
+_path_created = {}
+
+# I don't use os.makedirs because a) it's new to Python 1.5.2, and
+# b) it blows up if the directory already exists (I want to silently
+# succeed in that case).
+def mkpath (name, mode=0777, verbose=0, dry_run=0):
+    """Create a directory and any missing ancestor directories.  If the
+       directory already exists (or if 'name' is the empty string, which
+       means the current directory, which of course exists), then do
+       nothing.  Raise DistutilsFileError if unable to create some
+       directory along the way (eg. some sub-path exists, but is a file
+       rather than a directory).  If 'verbose' is true, print a one-line
+       summary of each mkdir to stdout.  Return the list of directories
+       actually created."""
+
+    global _path_created
+
+    # Detect a common bug -- name is None
+    if not isinstance(name, StringTypes):
+        raise DistutilsInternalError, \
+              "mkpath: 'name' must be a string (got %r)" % (name,)
+
+    # XXX what's the better way to handle verbosity? print as we create
+    # each directory in the path (the current behaviour), or only announce
+    # the creation of the whole path? (quite easy to do the latter since
+    # we're not using a recursive algorithm)
+
+    name = os.path.normpath(name)
+    created_dirs = []
+    if os.path.isdir(name) or name == '':
+        return created_dirs
+    if _path_created.get(os.path.abspath(name)):
+        return created_dirs
+
+    (head, tail) = os.path.split(name)
+    tails = [tail]                      # stack of lone dirs to create
+
+    while head and tail and not os.path.isdir(head):
+        #print "splitting '%s': " % head,
+        (head, tail) = os.path.split(head)
+        #print "to ('%s','%s')" % (head, tail)
+        tails.insert(0, tail)          # push next higher dir onto stack
+
+    #print "stack of tails:", tails
+
+    # now 'head' contains the deepest directory that already exists
+    # (that is, the child of 'head' in 'name' is the highest directory
+    # that does *not* exist)
+    for d in tails:
+        #print "head = %s, d = %s: " % (head, d),
+        head = os.path.join(head, d)
+        abs_head = os.path.abspath(head)
+
+        if _path_created.get(abs_head):
+            continue
+
+        log.info("creating %s", head)
+
+        if not dry_run:
+            try:
+                os.mkdir(head)
+                created_dirs.append(head)
+            except OSError, exc:
+                raise DistutilsFileError, \
+                      "could not create '%s': %s" % (head, exc[-1])
+
+        _path_created[abs_head] = 1
+    return created_dirs
+
+# mkpath ()
+
+
+def create_tree (base_dir, files, mode=0777, verbose=0, dry_run=0):
+
+    """Create all the empty directories under 'base_dir' needed to
+       put 'files' there.  'base_dir' is just the a name of a directory
+       which doesn't necessarily exist yet; 'files' is a list of filenames
+       to be interpreted relative to 'base_dir'.  'base_dir' + the
+       directory portion of every file in 'files' will be created if it
+       doesn't already exist.  'mode', 'verbose' and 'dry_run' flags are as
+       for 'mkpath()'."""
+
+    # First get the list of directories to create
+    need_dir = {}
+    for file in files:
+        need_dir[os.path.join(base_dir, os.path.dirname(file))] = 1
+    need_dirs = need_dir.keys()
+    need_dirs.sort()
+
+    # Now create them
+    for dir in need_dirs:
+        mkpath(dir, mode, dry_run=dry_run)
+
+# create_tree ()
+
+
+def copy_tree (src, dst,
+               preserve_mode=1,
+               preserve_times=1,
+               preserve_symlinks=0,
+               update=0,
+               verbose=0,
+               dry_run=0):
+
+    """Copy an entire directory tree 'src' to a new location 'dst'.  Both
+       'src' and 'dst' must be directory names.  If 'src' is not a
+       directory, raise DistutilsFileError.  If 'dst' does not exist, it is
+       created with 'mkpath()'.  The end result of the copy is that every
+       file in 'src' is copied to 'dst', and directories under 'src' are
+       recursively copied to 'dst'.  Return the list of files that were
+       copied or might have been copied, using their output name.  The
+       return value is unaffected by 'update' or 'dry_run': it is simply
+       the list of all files under 'src', with the names changed to be
+       under 'dst'.
+
+       'preserve_mode' and 'preserve_times' are the same as for
+       'copy_file'; note that they only apply to regular files, not to
+       directories.  If 'preserve_symlinks' is true, symlinks will be
+       copied as symlinks (on platforms that support them!); otherwise
+       (the default), the destination of the symlink will be copied.
+       'update' and 'verbose' are the same as for 'copy_file'."""
+
+    from distutils.file_util import copy_file
+
+    if not dry_run and not os.path.isdir(src):
+        raise DistutilsFileError, \
+              "cannot copy tree '%s': not a directory" % src
+    try:
+        names = os.listdir(src)
+    except os.error, (errno, errstr):
+        if dry_run:
+            names = []
+        else:
+            raise DistutilsFileError, \
+                  "error listing files in '%s': %s" % (src, errstr)
+
+    if not dry_run:
+        mkpath(dst)
+
+    outputs = []
+
+    for n in names:
+        src_name = os.path.join(src, n)
+        dst_name = os.path.join(dst, n)
+
+        if preserve_symlinks and os.path.islink(src_name):
+            link_dest = os.readlink(src_name)
+            log.info("linking %s -> %s", dst_name, link_dest)
+            if not dry_run:
+                os.symlink(link_dest, dst_name)
+            outputs.append(dst_name)
+
+        elif os.path.isdir(src_name):
+            outputs.extend(
+                copy_tree(src_name, dst_name, preserve_mode,
+                          preserve_times, preserve_symlinks, update,
+                          dry_run=dry_run))
+        else:
+            copy_file(src_name, dst_name, preserve_mode,
+                      preserve_times, update, dry_run=dry_run)
+            outputs.append(dst_name)
+
+    return outputs
+
+# copy_tree ()
+
+# Helper for remove_tree()
+def _build_cmdtuple(path, cmdtuples):
+    for f in os.listdir(path):
+        real_f = os.path.join(path,f)
+        if os.path.isdir(real_f) and not os.path.islink(real_f):
+            _build_cmdtuple(real_f, cmdtuples)
+        else:
+            cmdtuples.append((os.remove, real_f))
+    cmdtuples.append((os.rmdir, path))
+
+
+def remove_tree (directory, verbose=0, dry_run=0):
+    """Recursively remove an entire directory tree.  Any errors are ignored
+    (apart from being reported to stdout if 'verbose' is true).
+    """
+    from distutils.util import grok_environment_error
+    global _path_created
+
+    log.info("removing '%s' (and everything under it)", directory)
+    if dry_run:
+        return
+    cmdtuples = []
+    _build_cmdtuple(directory, cmdtuples)
+    for cmd in cmdtuples:
+        try:
+            apply(cmd[0], (cmd[1],))
+            # remove dir from cache if it's already there
+            abspath = os.path.abspath(cmd[1])
+            if abspath in _path_created:
+                del _path_created[abspath]
+        except (IOError, OSError), exc:
+            log.warn(grok_environment_error(
+                    exc, "error removing %s: " % directory))
+
+
+def ensure_relative (path):
+    """Take the full path 'path', and make it a relative path so
+    it can be the second argument to os.path.join().
+    """
+    drive, path = os.path.splitdrive(path)
+    if sys.platform == 'mac':
+        return os.sep + path
+    else:
+        if path[0:1] == os.sep:
+            path = drive + path[1:]
+        return path