Commit f4fce7ef by Romain Courteaud

Add a simple readline recipe.

1 parent 270894ee
......@@ -165,6 +165,7 @@ setup(name=name,
'publish.serialised = slapos.recipe.publish:Serialised',
'publishsection = slapos.recipe.publish:PublishSection',
'publishurl = slapos.recipe.publishurl:Recipe',
'readline = slapos.recipe.readline:Recipe',
'redis.server = slapos.recipe.redis:Recipe',
'request = slapos.recipe.request:Recipe',
'request.serialised = slapos.recipe.request:Serialised',
......
# vim: set et sts=2:
##############################################################################
#
# Copyright (c) 2013 Vifib SARL and Contributors. All Rights Reserved.
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsibility of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# guarantees and support are strongly adviced to contract a Free Software
# Service Company
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 3
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
##############################################################################
import errno
class Recipe(object):
"""Read the first line of a file.
As the result has to be provided as an options, it is mandatory that the
buildout profile fills the file content (if needed) before trying to read it.
Options:
- storage-path: file to read
Result set in options:
- readline: first line of the file
"""
def __init__(self, buildout, name, options):
storage_path = options['storage-path']
try:
with open(storage_path) as f:
readline = f.readline()
except IOError, e:
if e.errno != errno.ENOENT:
raise
readline = None
self.readline = readline
options['readline'] = readline
def install(self):
if self.readline is None:
raise ValueError('Unable to read the file content.')
return ()
def update(self):
return ()
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