#!/usr/bin/env python
# (c) 2012, Jan-Piet Mens <jpmens () gmail.com>
#
# This file is part of Ansible
#
# Ansible 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.
#
# Ansible 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 Ansible. If not, see <http://www.gnu.org/licenses/>.
#
import os
import sys
import textwrap
import re
import optparse
import datetime
import subprocess
from ansible import utils
from ansible.utils import module_docs
import ansible.constants as C
from ansible.utils import version
import traceback
MODULEDIR = C.DEFAULT_MODULE_PATH
BLACKLIST_EXTS = ('.swp', '.bak', '~', '.rpm')
_ITALIC = re.compile(r"I\(([^)]+)\)")
_BOLD = re.compile(r"B\(([^)]+)\)")
_MODULE = re.compile(r"M\(([^)]+)\)")
_URL = re.compile(r"U\(([^)]+)\)")
_CONST = re.compile(r"C\(([^)]+)\)")
PAGER = 'less'
LESS_OPTS = 'FRSX' # -F (quit-if-one-screen) -R (allow raw ansi control chars)
# -S (chop long lines) -X (disable termcap init and de-init)
def pager_print(text):
''' just print text '''
print text
def pager_pipe(text, cmd):
''' pipe text through a pager '''
if 'LESS' not in os.environ:
os.environ['LESS'] = LESS_OPTS
try:
cmd = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, stdout=sys.stdout)
cmd.communicate(input=text)
except IOError:
pass
except KeyboardInterrupt:
pass
def pager(text):
''' find reasonable way to display text '''
# this is a much simpler form of what is in pydoc.py
if not sys.stdout.isatty():
pager_print(text)
elif 'PAGER' in os.environ:
if sys.platform == 'win32':
pager_print(text)
else:
pager_pipe(text, os.environ['PAGER'])
elif hasattr(os, 'system') and os.system('(less) 2> /dev/null') == 0:
pager_pipe(text, 'less')
else:
pager_print(text)
def tty_ify(text):
t = _ITALIC.sub("`" + r"\1" + "'", text) # I(word) => `word'
t = _BOLD.sub("*" + r"\1" + "*", t) # B(word) => *word*
t = _MODULE.sub("[" + r"\1" + "]", t) # M(word) => [word]
t = _URL.sub(r"\1", t) # U(word) => word
t = _CONST.sub("`" + r"\1" + "'", t) # C(word) => `word'
return t
def get_man_text(doc):
opt_indent=" "
text = []
text.append("> %s\n" % doc['module'].upper())
desc = "".join(doc['description'])
text.append("%s\n" % textwrap.fill(tty_ify(desc), initial_indent=" ", subsequent_indent=" "))
if 'option_keys' in doc and len(doc['option_keys']) > 0:
text.append("Options (= is mandatory):\n")
for o in doc['option_keys']:
opt = doc['options'][o]
if opt.get('required', False):
opt_leadin = "="
else:
opt_leadin = "-"
text.append("%s %s" % (opt_leadin, o))
desc = "".join(opt['description'])
if 'choices' in opt:
choices = ", ".join(str(i) for i in opt['choices'])
desc = desc + " (Choices: " + choices + ")"
text.append("%s\n" % textwrap.fill(tty_ify(desc), initial_indent=opt_indent,
subsequent_indent=opt_indent))
if 'notes' in doc and len(doc['notes']) > 0:
notes = "".join(doc['notes'])
text.append("Notes:%s\n" % textwrap.fill(tty_ify(notes), initial_indent=" ",
subsequent_indent=opt_indent))
if 'requirements' in doc and doc['requirements'] is not None and len(doc['requirements']) > 0:
req = ", ".join(doc['requirements'])
text.append("Requirements:%s\n" % textwrap.fill(tty_ify(req), initial_indent=" ",
subsequent_indent=opt_indent))
if 'examples' in doc and len(doc['examples']) > 0:
text.append("Example%s:\n" % ('' if len(doc['examples']) < 2 else 's'))
for ex in doc['examples']:
text.append("%s\n" % (ex['code']))
if 'plainexamples' in doc and doc['plainexamples'] is not None:
text.append(doc['plainexamples'])
text.append('')
return "\n".join(text)
def get_snippet_text(doc):
text = []
desc = tty_ify("".join(doc['short_description']))
text.append("- name: %s" % (desc))
text.append(" action: %s" % (doc['module']))
for o in doc['options']:
opt = doc['options'][o]
desc = tty_ify("".join(opt['description']))
s = o + "="
text.append(" %-20s # %s" % (s, desc))
text.append('')
return "\n".join(text)
def get_module_list_text(module_list):
text = []
for module in sorted(set(module_list)):
if module in module_docs.BLACKLIST_MODULES:
continue
filename = utils.plugins.module_finder.find_plugin(module)
if filename is None:
continue
if os.path.isdir(filename):
continue
try:
doc, plainexamples = module_docs.get_docstring(filename)
desc = tty_ify(doc.get('short_description', '?'))
if len(desc) > 55:
desc = desc + '...'
text.append("%-20s %-60.60s" % (module, desc))
except:
traceback.print_exc()
sys.stderr.write("ERROR: module %s has a documentation error formatting or is missing documentation\n" % module)
pass
return "\n".join(text)
def main():
p = optparse.OptionParser(
version=version("%prog"),
usage='usage: %prog [options] [module...]',
description='Show Ansible module documentation',
)
p.add_option("-M", "--module-path",
action="store",
dest="module_path",
default=MODULEDIR,
help="Ansible modules/ directory")
p.add_option("-l", "--list",
action="store_true",
default=False,
dest='list_dir',
help='List available modules')
p.add_option("-s", "--snippet",
action="store_true",
default=False,
dest='show_snippet',
help='Show playbook snippet for specified module(s)')
p.add_option('-v', action='version', help='Show version number and exit')
(options, args) = p.parse_args()
if options.module_path is not None:
for i in options.module_path.split(os.pathsep):
utils.plugins.module_finder.add_directory(i)
if options.list_dir:
# list all modules
paths = utils.plugins.module_finder._get_paths()
module_list = []
for path in paths:
# os.system("ls -C %s" % (path))
if os.path.isdir(path):
for module in os.listdir(path):
if any(module.endswith(x) for x in BLACKLIST_EXTS):
continue
module_list.append(module)
pager(get_module_list_text(module_list))
sys.exit()
if len(args) == 0:
p.print_help()
def print_paths(finder):
''' Returns a string suitable for printing of the search path '''
# Uses a list to get the order right
ret = []
for i in finder._get_paths():
if i not in ret:
ret.append(i)
return os.pathsep.join(ret)
text = ''
for module in args:
filename = utils.plugins.module_finder.find_plugin(module)
if filename is None:
sys.stderr.write("module %s not found in %s\n" % (module,
print_paths(utils.plugins.module_finder)))
continue
if any(filename.endswith(x) for x in BLACKLIST_EXTS):
continue
try:
doc, plainexamples = module_docs.get_docstring(filename)
except:
traceback.print_exc()
sys.stderr.write("ERROR: module %s has a documentation error formatting or is missing documentation\n" % module)
continue
if doc is not None:
all_keys = []
for (k,v) in doc['options'].iteritems():
all_keys.append(k)
all_keys = sorted(all_keys)
doc['option_keys'] = all_keys
doc['filename'] = filename
doc['docuri'] = doc['module'].replace('_', '-')
doc['now_date'] = datetime.date.today().strftime('%Y-%m-%d')
doc['plainexamples'] = plainexamples
if options.show_snippet:
text += get_snippet_text(doc)
else:
text += get_man_text(doc)
else:
# this typically means we couldn't even parse the docstring, not just that the YAML is busted,
# probably a quoting issue.
sys.stderr.write("ERROR: module %s missing documentation (or could not parse documentation)\n" % module)
pager(text)
if __name__ == '__main__':
main()