+# Copyright 2012 GRNET S.A. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or
+# without modification, are permitted provided that the following
+# conditions are met:
+#
+# 1. Redistributions of source code must retain the above
+# copyright notice, this list of conditions and the following
+# disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials
+# provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
+# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+# The views and conclusions contained in the software and
+# documentation are those of the authors and should not be
+# interpreted as representing official policies, either expressed
+# or implied, of GRNET S.A.
+
+import sys
+from progress.bar import Bar
+from colors import red, green, yellow
+
+
+def error(msg, new_line=True):
+ nl = "\n" if new_line else ''
+ sys.stderr.write(red('Error: %s' % msg) + nl)
+
+
+def warn(msg, new_line=True):
+ nl = "\n" if new_line else ''
+ sys.stderr.write(yellow("Warning: %s" % msg) + nl)
+
+
+def success(msg, new_line=True):
+ nl = "\n" if new_line else ''
+ sys.stdout.write(green(msg) + nl)
+ if not nl:
+ sys.stdout.flush()
+
+
+def output(msg='', new_line=True):
+ nl = "\n" if new_line else ''
+ sys.stdout.write(msg + nl)
+ if not nl:
+ sys.stdout.flush()
+
+
+class Output(object):
+ def error(self, msg, new_line=True):
+ error(msg, new_line)
+
+ def warn(self, msg, new_line=True):
+ warn(msg, new_line)
+
+ def success(self, msg, new_line=True):
+ success(msg, new_line)
+
+ def output(self, msg='', new_line=True):
+ output(msg, new_line)
+
+ class Progress(object):
+ def __init__(self, title, bar_type='default'):
+ output("%s..." % title, False)
+
+ def goto(self, dest):
+ pass
+
+ def next(self):
+ pass
+
+ def success(self, result):
+ sucess(result)
+
+ def progress_gen(self, message):
+
+ progress = getattr(self, 'Progress')
+
+ def generator(n):
+ progressbar = progress(message, 'default')
+
+ for _ in range(n):
+ yield
+ progressbar.next()
+
+ progressbar.success('done')
+ yield
+ return generator
+
+
+class Output_with_progress(Output):
+ class Progress(Bar):
+ MESSAGE_LENGTH = 30
+
+ template = {
+ 'default': '%(index)d/%(max)d',
+ 'percent': '%(percent)d%%',
+ 'b': '%(index)d/%(max)d B',
+ 'kb': '%(index)d/%(max)d KB',
+ 'mb': '%(index)d/%(max)d MB'
+ }
+
+ def __init__(self, title, bar_type='default'):
+ super(Output_with_progress.Progress, self).__init__()
+ self.title = title
+ self.fill = '#'
+ self.bar_prefix = ' ['
+ self.bar_suffix = '] '
+ self.message = ("%s:" % self.title).ljust(self.MESSAGE_LENGTH)
+ self.suffix = self.template[bar_type]
+
+ def success(self, result):
+ output("\r%s... \033[K" % self.title, False)
+ success(result)
+
+
+class Silent(Output):
+ def warn(self, msg, new_line=True):
+ pass
+
+ def success(self, msg, new_line=True):
+ pass
+
+ def output(self, msg='', new_line=True):
+ pass
+
+ class Progress(Output.Progress):
+ def __init__(self, title, bar_type):
+ pass
+
+ def success(self, result):
+ pass
+
+# vim: set sta sts=4 shiftwidth=4 sw=4 et ai :
projects / snf-image-creator / commitdiff