diff mercurial/util.py @ 13972:d1f4e7fd970a

move path_auditor from util to scmutil

--- a/mercurial/util.py	Wed Apr 20 21:41:41 2011 +0200
+++ b/mercurial/util.py	Wed Apr 20 22:43:31 2011 +0200
@@ -16,7 +16,7 @@
 from i18n import _
 import error, osutil, encoding
 import errno, re, shutil, sys, tempfile, traceback
-import os, stat, time, calendar, textwrap, unicodedata, signal
+import os, time, calendar, textwrap, unicodedata, signal
 import imp, socket
 
 # Python compatibility
@@ -492,80 +492,6 @@
             return _("filename ends with '%s', which is not allowed "
                      "on Windows") % t
 
-class path_auditor(object):
-    '''ensure that a filesystem path contains no banned components.
-    the following properties of a path are checked:
-
-    - ends with a directory separator
-    - under top-level .hg
-    - starts at the root of a windows drive
-    - contains ".."
-    - traverses a symlink (e.g. a/symlink_here/b)
-    - inside a nested repository (a callback can be used to approve
-      some nested repositories, e.g., subrepositories)
-    '''
-
-    def __init__(self, root, callback=None):
-        self.audited = set()
-        self.auditeddir = set()
-        self.root = root
-        self.callback = callback
-
-    def __call__(self, path):
-        '''Check the relative path.
-        path may contain a pattern (e.g. foodir/**.txt)'''
-
-        if path in self.audited:
-            return
-        # AIX ignores "/" at end of path, others raise EISDIR.
-        if endswithsep(path):
-            raise Abort(_("path ends in directory separator: %s") % path)
-        normpath = os.path.normcase(path)
-        parts = splitpath(normpath)
-        if (os.path.splitdrive(path)[0]
-            or parts[0].lower() in ('.hg', '.hg.', '')
-            or os.pardir in parts):
-            raise Abort(_("path contains illegal component: %s") % path)
-        if '.hg' in path.lower():
-            lparts = [p.lower() for p in parts]
-            for p in '.hg', '.hg.':
-                if p in lparts[1:]:
-                    pos = lparts.index(p)
-                    base = os.path.join(*parts[:pos])
-                    raise Abort(_('path %r is inside nested repo %r')
-                                % (path, base))
-
-        parts.pop()
-        prefixes = []
-        while parts:
-            prefix = os.sep.join(parts)
-            if prefix in self.auditeddir:
-                break
-            curpath = os.path.join(self.root, prefix)
-            try:
-                st = os.lstat(curpath)
-            except OSError, err:
-                # EINVAL can be raised as invalid path syntax under win32.
-                # They must be ignored for patterns can be checked too.
-                if err.errno not in (errno.ENOENT, errno.ENOTDIR, errno.EINVAL):
-                    raise
-            else:
-                if stat.S_ISLNK(st.st_mode):
-                    raise Abort(_('path %r traverses symbolic link %r') %
-                                (path, prefix))
-                elif (stat.S_ISDIR(st.st_mode) and
-                      os.path.isdir(os.path.join(curpath, '.hg'))):
-                    if not self.callback or not self.callback(curpath):
-                        raise Abort(_('path %r is inside nested repo %r') %
-                                    (path, prefix))
-            prefixes.append(prefix)
-            parts.pop()
-
-        self.audited.add(path)
-        # only add prefixes to the cache after checking everything: we don't
-        # want to add "foo/bar/baz" before checking if there's a "foo/.hg"
-        self.auditeddir.update(prefixes)
-
 def lookup_reg(key, name=None, scope=None):
     return None