Use absolute_import from the __future__ everywhere

[bup.git] / lib / bup / drecurse.py

diff --git a/lib/bup/drecurse.py b/lib/bup/drecurse.py
index 2dbe50c7934420f5e11d7b525d63f3f1626749d0..24a0db941538e68b95d2db061d16b6b0d2b30073 100644 (file)
--- a/lib/bup/drecurse.py
+++ b/lib/bup/drecurse.py
@@ -1,7 +1,11 @@
+
+from __future__ import absolute_import
 import stat, os
-from bup.helpers import *
+
+from bup.helpers import add_error, should_rx_exclude_path, debug1, resolve_parent
 import bup.xstat as xstat
 
+
 try:
     O_LARGEFILE = os.O_LARGEFILE
 except AttributeError:
@@ -39,8 +43,8 @@ def _dirlist():
     for n in os.listdir('.'):
         try:
             st = xstat.lstat(n)
-        except OSError, e:
-            add_error(Exception('%s: %s' % (realpath(n), str(e))))
+        except OSError as e:
+            add_error(Exception('%s: %s' % (resolve_parent(n), str(e))))
             continue
         if (st.st_mode & _IFMT) == stat.S_IFDIR:
             n += '/'
@@ -49,34 +53,46 @@ def _dirlist():
     return l
 
 
-def _recursive_dirlist(prepend, xdev, bup_dir=None, excluded_paths=None):
+def _recursive_dirlist(prepend, xdev, bup_dir=None,
+                       excluded_paths=None,
+                       exclude_rxs=None,
+                       xdev_exceptions=frozenset()):
     for (name,pst) in _dirlist():
-        if name.endswith('/'):
-            if xdev != None and pst.st_dev != xdev:
-                log('Skipping %r: different filesystem.\n' % (prepend+name))
+        path = prepend + name
+        if excluded_paths:
+            if os.path.normpath(path) in excluded_paths:
+                debug1('Skipping %r: excluded.\n' % path)
                 continue
+        if exclude_rxs and should_rx_exclude_path(path, exclude_rxs):
+            continue
+        if name.endswith('/'):
             if bup_dir != None:
-                if os.path.normpath(prepend+name) == bup_dir:
-                    log('Skipping BUP_DIR.\n')
-                    continue
-            if excluded_paths:
-                if os.path.normpath(prepend+name) in excluded_paths:
-                    log('Skipping %r: excluded.\n' % (prepend+name))
+                if os.path.normpath(path) == bup_dir:
+                    debug1('Skipping BUP_DIR.\n')
                     continue
-            try:
-                OsFile(name).fchdir()
-            except OSError, e:
-                add_error('%s: %s' % (prepend, e))
+            if xdev != None and pst.st_dev != xdev \
+               and path not in xdev_exceptions:
+                debug1('Skipping contents of %r: different filesystem.\n' % path)
             else:
-                for i in _recursive_dirlist(prepend=prepend+name, xdev=xdev,
-                                            bup_dir=bup_dir,
-                                            excluded_paths=excluded_paths):
-                    yield i
-                os.chdir('..')
-        yield (prepend + name, pst)
-
-
-def recursive_dirlist(paths, xdev, bup_dir=None, excluded_paths=None):
+                try:
+                    OsFile(name).fchdir()
+                except OSError as e:
+                    add_error('%s: %s' % (prepend, e))
+                else:
+                    for i in _recursive_dirlist(prepend=prepend+name, xdev=xdev,
+                                                bup_dir=bup_dir,
+                                                excluded_paths=excluded_paths,
+                                                exclude_rxs=exclude_rxs,
+                                                xdev_exceptions=xdev_exceptions):
+                        yield i
+                    os.chdir('..')
+        yield (path, pst)
+
+
+def recursive_dirlist(paths, xdev, bup_dir=None,
+                      excluded_paths=None,
+                      exclude_rxs=None,
+                      xdev_exceptions=frozenset()):
     startdir = OsFile('.')
     try:
         assert(type(paths) != type(''))
@@ -86,12 +102,12 @@ def recursive_dirlist(paths, xdev, bup_dir=None, excluded_paths=None):
                 if stat.S_ISLNK(pst.st_mode):
                     yield (path, pst)
                     continue
-            except OSError, e:
+            except OSError as e:
                 add_error('recursive_dirlist: %s' % e)
                 continue
             try:
                 pfile = OsFile(path)
-            except OSError, e:
+            except OSError as e:
                 add_error(e)
                 continue
             pst = pfile.stat()
@@ -104,7 +120,9 @@ def recursive_dirlist(paths, xdev, bup_dir=None, excluded_paths=None):
                 prepend = os.path.join(path, '')
                 for i in _recursive_dirlist(prepend=prepend, xdev=xdev,
                                             bup_dir=bup_dir,
-                                            excluded_paths=excluded_paths):
+                                            excluded_paths=excluded_paths,
+                                            exclude_rxs=exclude_rxs,
+                                            xdev_exceptions=xdev_exceptions):
                     yield i
                 startdir.fchdir()
             else:
@@ -116,25 +134,3 @@ def recursive_dirlist(paths, xdev, bup_dir=None, excluded_paths=None):
         except:
             pass
         raise
-
-def parse_excludes(flags):
-    excluded_paths = []
-
-    for flag in flags:
-        (option, parameter) = flag
-        if option == '--exclude':
-            excluded_paths.append(realpath(parameter))
-
-        if option == '--exclude-from':
-            try:
-                try:
-                    f = open(realpath(parameter))
-                    for exclude_path in f.readlines():
-                        excluded_paths.append(realpath(exclude_path.strip()))
-                except Error, e:
-                    log("warning: couldn't read %s" % parameter)
-            finally:
-                f.close()
-
-    return excluded_paths
-