114 lines
3.5 KiB
Python
114 lines
3.5 KiB
Python
# (c) 2013, Jan-Piet Mens <jpmens(at)gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import codecs
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import csv
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from collections import MutableSequence
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from ansible.errors import AnsibleError
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from ansible.plugins.lookup import LookupBase
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from ansible.module_utils._text import to_bytes, to_native, to_text
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class CSVRecoder:
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"""
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Iterator that reads an encoded stream and reencodes the input to UTF-8
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"""
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def __init__(self, f, encoding='utf-8'):
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self.reader = codecs.getreader(encoding)(f)
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def __iter__(self):
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return self
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def next(self):
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return self.reader.next().encode("utf-8")
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class CSVReader:
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"""
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A CSV reader which will iterate over lines in the CSV file "f",
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which is encoded in the given encoding.
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"""
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def __init__(self, f, dialect=csv.excel, encoding='utf-8', **kwds):
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f = CSVRecoder(f, encoding)
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self.reader = csv.reader(f, dialect=dialect, **kwds)
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def next(self):
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row = self.reader.next()
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return [to_text(s) for s in row]
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def __iter__(self):
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return self
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class LookupModule(LookupBase):
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def read_csv(self, filename, key, delimiter, encoding='utf-8', dflt=None, col=1):
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try:
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f = open(filename, 'r')
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creader = CSVReader(f, delimiter=to_bytes(delimiter), encoding=encoding)
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for row in creader:
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if row[0] == key:
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return row[int(col)]
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except Exception as e:
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raise AnsibleError("csvfile: %s" % to_native(e))
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return dflt
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def run(self, terms, variables=None, **kwargs):
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ret = []
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for term in terms:
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params = term.split()
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key = params[0]
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paramvals = {
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'col': "1", # column to return
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'default': None,
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'delimiter': "TAB",
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'file': 'ansible.csv',
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'encoding': 'utf-8',
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}
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# parameters specified?
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try:
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for param in params[1:]:
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name, value = param.split('=')
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assert(name in paramvals)
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paramvals[name] = value
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except (ValueError, AssertionError) as e:
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raise AnsibleError(e)
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if paramvals['delimiter'] == 'TAB':
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paramvals['delimiter'] = "\t"
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lookupfile = self.find_file_in_search_path(variables, 'files', paramvals['file'])
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var = self.read_csv(lookupfile, key, paramvals['delimiter'], paramvals['encoding'], paramvals['default'], paramvals['col'])
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if var is not None:
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if isinstance(var, MutableSequence):
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for v in var:
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ret.append(v)
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else:
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ret.append(var)
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return ret
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