1 files changed, 75 insertions, 0 deletions
diff --git a/scripts/devscripts/logger.py b/scripts/devscripts/logger.py
new file mode 100644
index 0000000..f99de37
--- /dev/null
+++ b/scripts/devscripts/logger.py
@@ -0,0 +1,75 @@
+#   logger.py - A simple logging helper class
+#
+#   Copyright (C) 2010, Benjamin Drung <bdrung@debian.org>
+#
+#   Permission to use, copy, modify, and/or distribute this software
+#   for any purpose with or without fee is hereby granted, provided
+#   that the above copyright notice and this permission notice appear
+#   in all copies.
+#
+#   THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+#   WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+#   WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+#   AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+#   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+#   LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+#   NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+#   CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+import os
+import sys
+
+
+def escape_arg(arg):
+    """Shell-escape arg, if necessary.
+    Fairly simplistic, doesn't escape anything except whitespace.
+    """
+    if " " not in arg:
+        return arg
+    return '"%s"' % arg.replace("\\", r"\\").replace('"', r"\"")
+
+
+class Logger:
+    script_name = os.path.basename(sys.argv[0])
+    verbose = False
+
+    stdout = sys.stdout
+    stderr = sys.stderr
+
+    @classmethod
+    def _print(cls, format_, message, args=None, stderr=False):
+        if args:
+            message = message % args
+        stream = cls.stderr if stderr else cls.stdout
+        stream.write((format_ + "\n") % (cls.script_name, message))
+
+    @classmethod
+    def command(cls, cmd):
+        if cls.verbose:
+            cls._print("%s: I: %s", " ".join(escape_arg(arg) for arg in cmd))
+
+    @classmethod
+    def debug(cls, message, *args):
+        if cls.verbose:
+            cls._print("%s: D: %s", message, args, stderr=True)
+
+    @classmethod
+    def error(cls, message, *args):
+        cls._print("%s: Error: %s", message, args, stderr=True)
+
+    @classmethod
+    def warn(cls, message, *args):
+        cls._print("%s: Warning: %s", message, args, stderr=True)
+
+    @classmethod
+    def info(cls, message, *args):
+        if cls.verbose:
+            cls._print("%s: I: %s", message, args)
+
+    @classmethod
+    def normal(cls, message, *args):
+        cls._print("%s: %s", message, args)
+
+    @classmethod
+    def set_verbosity(cls, verbose):
+        cls.verbose = verbose