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# (c) 2013, Jan-Piet Mens <jpmens(at)gmail.com> # (c) 2017 Ansible Project # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) from __future__ import (absolute_import, division, print_function) __metaclass__ = type DOCUMENTATION = r""" name: csvfile author: Jan-Piet Mens (@jpmens) <jpmens(at)gmail.com> version_added: "1.5" short_description: read data from a TSV or CSV file description: - The csvfile lookup reads the contents of a file in CSV (comma-separated value) format. The lookup looks for the row where the first column matches keyname (which can be multiple words) and returns the value in the C(col) column (default 1, which indexed from 0 means the second column in the file). options: col: description: column to return (0 indexed). default: "1" default: description: what to return if the value is not found in the file. delimiter: description: field separator in the file, for a tab you can specify C(TAB) or C(\t). default: TAB file: description: name of the CSV/TSV file to open. default: ansible.csv encoding: description: Encoding (character set) of the used CSV file. default: utf-8 version_added: "2.1" notes: - The default is for TSV files (tab delimited) not CSV (comma delimited) ... yes the name is misleading. - As of version 2.11, the search parameter (text that must match the first column of the file) and filename parameter can be multi-word. - For historical reasons, in the search keyname, quotes are treated literally and cannot be used around the string unless they appear (escaped as required) in the first column of the file you are parsing. """ EXAMPLES = """ - name: Match 'Li' on the first column, return the second column (0 based index) ansible.builtin.debug: msg="The atomic number of Lithium is {{ lookup('ansible.builtin.csvfile', 'Li file=elements.csv delimiter=,') }}" - name: msg="Match 'Li' on the first column, but return the 3rd column (columns start counting after the match)" ansible.builtin.debug: msg="The atomic mass of Lithium is {{ lookup('ansible.builtin.csvfile', 'Li file=elements.csv delimiter=, col=2') }}" - name: Define Values From CSV File, this reads file in one go, but you could also use col= to read each in it's own lookup. ansible.builtin.set_fact: loop_ip: "{{ csvline[0] }}" int_ip: "{{ csvline[1] }}" int_mask: "{{ csvline[2] }}" int_name: "{{ csvline[3] }}" local_as: "{{ csvline[4] }}" neighbor_as: "{{ csvline[5] }}" neigh_int_ip: "{{ csvline[6] }}" vars: csvline = "{{ lookup('ansible.builtin.csvfile', bgp_neighbor_ip, file='bgp_neighbors.csv', delimiter=',') }}" delegate_to: localhost """ RETURN = """ _raw: description: - value(s) stored in file column type: list elements: str """ import codecs import csv from collections.abc import MutableSequence from ansible.errors import AnsibleError, AnsibleAssertionError from ansible.parsing.splitter import parse_kv from ansible.plugins.lookup import LookupBase from ansible.module_utils.six import PY2 from ansible.module_utils._text import to_bytes, to_native, to_text class CSVRecoder: """ Iterator that reads an encoded stream and reencodes the input to UTF-8 """ def __init__(self, f, encoding='utf-8'): self.reader = codecs.getreader(encoding)(f) def __iter__(self): return self def __next__(self): return next(self.reader).encode("utf-8") next = __next__ # For Python 2 class CSVReader: """ A CSV reader which will iterate over lines in the CSV file "f", which is encoded in the given encoding. """ def __init__(self, f, dialect=csv.excel, encoding='utf-8', **kwds): if PY2: f = CSVRecoder(f, encoding) else: f = codecs.getreader(encoding)(f) self.reader = csv.reader(f, dialect=dialect, **kwds) def __next__(self): row = next(self.reader) return [to_text(s) for s in row] next = __next__ # For Python 2 def __iter__(self): return self class LookupModule(LookupBase): def read_csv(self, filename, key, delimiter, encoding='utf-8', dflt=None, col=1): try: f = open(to_bytes(filename), 'rb') creader = CSVReader(f, delimiter=to_native(delimiter), encoding=encoding) for row in creader: if len(row) and row[0] == key: return row[int(col)] except Exception as e: raise AnsibleError("csvfile: %s" % to_native(e)) return dflt def run(self, terms, variables=None, **kwargs): ret = [] self.set_options(var_options=variables, direct=kwargs) # populate options paramvals = self.get_options() for term in terms: kv = parse_kv(term) if '_raw_params' not in kv: raise AnsibleError('Search key is required but was not found') key = kv['_raw_params'] # parameters override per term using k/v try: for name, value in kv.items(): if name == '_raw_params': continue if name not in paramvals: raise AnsibleAssertionError('%s is not a valid option' % name) self._deprecate_inline_kv() paramvals[name] = value except (ValueError, AssertionError) as e: raise AnsibleError(e) # default is just placeholder for real tab if paramvals['delimiter'] == 'TAB': paramvals['delimiter'] = "\t" lookupfile = self.find_file_in_search_path(variables, 'files', paramvals['file']) var = self.read_csv(lookupfile, key, paramvals['delimiter'], paramvals['encoding'], paramvals['default'], paramvals['col']) if var is not None: if isinstance(var, MutableSequence): for v in var: ret.append(v) else: ret.append(var) return ret