diff mercurial/util.py @ 13970:d13913355390

move opener from util to scmutil

--- a/mercurial/util.py	Wed Apr 20 23:30:07 2011 +0200
+++ b/mercurial/util.py	Wed Apr 20 19:54:57 2011 +0200
@@ -895,101 +895,6 @@
     makedirs(parent, mode)
     makedirs(name, mode)
 
-class opener(object):
-    """Open files relative to a base directory
-
-    This class is used to hide the details of COW semantics and
-    remote file access from higher level code.
-    """
-    def __init__(self, base, audit=True):
-        self.base = base
-        if audit:
-            self.auditor = path_auditor(base)
-        else:
-            self.auditor = always
-        self.createmode = None
-        self._trustnlink = None
-
-    @propertycache
-    def _can_symlink(self):
-        return checklink(self.base)
-
-    def _fixfilemode(self, name):
-        if self.createmode is None:
-            return
-        os.chmod(name, self.createmode & 0666)
-
-    def __call__(self, path, mode="r", text=False, atomictemp=False):
-        r = checkosfilename(path)
-        if r:
-            raise Abort("%s: %r" % (r, path))
-        self.auditor(path)
-        f = os.path.join(self.base, path)
-
-        if not text and "b" not in mode:
-            mode += "b" # for that other OS
-
-        nlink = -1
-        dirname, basename = os.path.split(f)
-        # If basename is empty, then the path is malformed because it points
-        # to a directory. Let the posixfile() call below raise IOError.
-        if basename and mode not in ('r', 'rb'):
-            if atomictemp:
-                if not os.path.isdir(dirname):
-                    makedirs(dirname, self.createmode)
-                return atomictempfile(f, mode, self.createmode)
-            try:
-                if 'w' in mode:
-                    unlink(f)
-                    nlink = 0
-                else:
-                    # nlinks() may behave differently for files on Windows
-                    # shares if the file is open.
-                    fd = posixfile(f)
-                    nlink = nlinks(f)
-                    if nlink < 1:
-                        nlink = 2 # force mktempcopy (issue1922)
-                    fd.close()
-            except (OSError, IOError), e:
-                if e.errno != errno.ENOENT:
-                    raise
-                nlink = 0
-                if not os.path.isdir(dirname):
-                    makedirs(dirname, self.createmode)
-            if nlink > 0:
-                if self._trustnlink is None:
-                    self._trustnlink = nlink > 1 or checknlink(f)
-                if nlink > 1 or not self._trustnlink:
-                    rename(mktempcopy(f), f)
-        fp = posixfile(f, mode)
-        if nlink == 0:
-            self._fixfilemode(f)
-        return fp
-
-    def symlink(self, src, dst):
-        self.auditor(dst)
-        linkname = os.path.join(self.base, dst)
-        try:
-            os.unlink(linkname)
-        except OSError:
-            pass
-
-        dirname = os.path.dirname(linkname)
-        if not os.path.exists(dirname):
-            makedirs(dirname, self.createmode)
-
-        if self._can_symlink:
-            try:
-                os.symlink(src, linkname)
-            except OSError, err:
-                raise OSError(err.errno, _('could not symlink to %r: %s') %
-                              (src, err.strerror), linkname)
-        else:
-            f = self(dst, "w")
-            f.write(src)
-            f.close()
-            self._fixfilemode(dst)
-
 class chunkbuffer(object):
     """Allow arbitrary sized chunks of data to be efficiently read from an
     iterator over chunks of arbitrary size."""