comparison mercurial/util.py @ 13972:d1f4e7fd970a

move path_auditor from util to scmutil

13971:bfeaa88b875d

"""

from i18n import _
import error, osutil, encoding
import errno, re, shutil, sys, tempfile, traceback
import os, stat, time, calendar, textwrap, unicodedata, signal
import imp, socket

# Python compatibility

def sha1(s):

        t = n[-1]
        if t in '. ':
            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

def hidewindow():
    """Hide current shell window.

13972:d1f4e7fd970a

"""

from i18n import _
import error, osutil, encoding
import errno, re, shutil, sys, tempfile, traceback
import os, time, calendar, textwrap, unicodedata, signal
import imp, socket

# Python compatibility

def sha1(s):

        t = n[-1]
        if t in '. ':
            return _("filename ends with '%s', which is not allowed "
                     "on Windows") % t

def lookup_reg(key, name=None, scope=None):
    return None

def hidewindow():
    """Hide current shell window.