Branch CEF3 files from /branches/cef3 to /trunk/cef3 (issue #564).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@571 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

tools/file_util.py

@@ -0,0 +1,111 @@
+# Copyright (c) 2011 The Chromium Embedded Framework Authors. All rights
+# reserved. Use of this source code is governed by a BSD-style license that
+# can be found in the LICENSE file.
+
+from glob import iglob
+import os
+import shutil
+import sys
+import time
+
+def read_file(name, normalize = True):
+    """ Read a file. """
+    try:
+        f = open(name, 'r')
+        # read the data
+        data = f.read()
+        if normalize:
+            # normalize line endings
+            data = data.replace("\r\n", "\n")
+        return data
+    except IOError, (errno, strerror):
+        sys.stderr.write('Failed to read file '+name+': '+strerror)
+        raise
+    else:
+        f.close()
+ 
+def write_file(name, data):
+    """ Write a file. """
+    try:
+        f = open(name, 'w')
+        # write the data
+        f.write(data)
+    except IOError, (errno, strerror):
+       sys.stderr.write('Failed to write file '+name+': '+strerror)
+       raise
+    else:
+        f.close()
+        
+def path_exists(name):
+    """ Returns true if the path currently exists. """
+    return os.path.exists(name)
+
+def backup_file(name):
+    """ Rename the file to a name that includes the current time stamp. """
+    move_file(name, name+'.'+time.strftime('%Y-%m-%d-%H-%M-%S'))
+
+def copy_file(src, dst, quiet = True):
+    """ Copy a file. """
+    try:
+        shutil.copy(src, dst)
+        if not quiet:
+            sys.stdout.write('Transferring '+src+' file.\n')
+    except IOError, (errno, strerror):
+        sys.stderr.write('Failed to copy file from '+src+' to '+dst+': '+strerror)
+        raise
+
+def move_file(src, dst, quiet = True):
+    """ Move a file. """
+    try:
+        shutil.move(src, dst)
+        if not quiet:
+            sys.stdout.write('Moving '+src+' file.\n')
+    except IOError, (errno, strerror):
+        sys.stderr.write('Failed to move file from '+src+' to '+dst+': '+strerror)
+        raise
+
+def copy_files(src_glob, dst_folder, quiet = True):
+    """ Copy multiple files. """
+    for fname in iglob(src_glob):
+        dst = os.path.join(dst_folder, os.path.basename(fname))
+        if os.path.isdir(fname):
+            copy_dir(fname, dst, quiet)
+        else:
+            copy_file(fname, dst, quiet)
+
+def copy_dir(src, dst, quiet = True):
+    """ Copy a directory tree. """
+    try:
+        remove_dir(dst, quiet)
+        shutil.copytree(src, dst)
+        if not quiet:
+            sys.stdout.write('Transferring '+src+' directory.\n')
+    except IOError, (errno, strerror):
+        sys.stderr.write('Failed to copy directory from '+src+' to '+dst+': '+strerror)
+        raise
+
+def remove_dir(name, quiet = True):
+    """ Remove the specified directory. """
+    try:
+        if path_exists(name):
+            shutil.rmtree(name)
+            if not quiet:
+                sys.stdout.write('Removing '+name+' directory.\n')
+    except IOError, (errno, strerror):
+        sys.stderr.write('Failed to remove directory '+name+': '+strerror)
+        raise
+
+def make_dir(name, quiet = True):
+    """ Create the specified directory. """
+    try:
+        if not path_exists(name):
+            if not quiet:
+                sys.stdout.write('Creating '+name+' directory.\n')
+            os.makedirs(name)
+    except IOError, (errno, strerror):
+        sys.stderr.write('Failed to create directory '+name+': '+strerror)
+        raise
+
+def get_files(search_glob):
+    """ Returns all files matching the search glob. """
+    return iglob(search_glob)