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# (c) 2014, James Tanner <tanner.jc@gmail.com>
#
# 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/>.
#
# ansible-vault is a script that encrypts/decrypts YAML files. See
# http://docs.ansible.com/playbooks_vault.html for more details.
import fcntl
import datetime
import os
import struct
import termios
import traceback
import textwrap
from ansible import constants as C
from ansible.errors import AnsibleError, AnsibleOptionsError
from ansible.plugins import module_loader
from ansible.cli import CLI
from ansible.utils import module_docs
class DocCLI(CLI):
""" Vault command line class """
BLACKLIST_EXTS = ('.pyc', '.swp', '.bak', '~', '.rpm')
IGNORE_FILES = [ "COPYING", "CONTRIBUTING", "LICENSE", "README", "VERSION"]
def __init__(self, args, display=None):
super(DocCLI, self).__init__(args, display)
self.module_list = []
def parse(self):
self.parser = CLI.base_parser(
usage='usage: %prog [options] [module...]',
epilog='Show Ansible module documentation',
)
self.parser.add_option("-M", "--module-path", action="store", dest="module_path", default=C.DEFAULT_MODULE_PATH,
help="Ansible modules/ directory")
self.parser.add_option("-l", "--list", action="store_true", default=False, dest='list_dir',
help='List available modules')
self.parser.add_option("-s", "--snippet", action="store_true", default=False, dest='show_snippet',
help='Show playbook snippet for specified module(s)')
self.options, self.args = self.parser.parse_args()
self.display.verbosity = self.options.verbosity
def run(self):
if self.options.module_path is not None:
for i in self.options.module_path.split(os.pathsep):
module_loader.add_directory(i)
# list modules
if self.options.list_dir:
paths = module_loader._get_paths()
for path in paths:
self.find_modules(path)
CLI.pager(self.get_module_list_text())
return 0
if len(self.args) == 0:
raise AnsibleOptionsError("Incorrect options passed")
# process command line module list
text = ''
for module in self.args:
filename = module_loader.find_plugin(module)
if filename is None:
self.display.warning("module %s not found in %s\n" % (module, DocCLI.print_paths(module_loader)))
continue
if any(filename.endswith(x) for x in self.BLACKLIST_EXTS):
continue
try:
doc, plainexamples, returndocs = module_docs.get_docstring(filename)
except:
self.display.vvv(traceback.print_exc())
self.display.error("module %s has a documentation error formatting or is missing documentation\nTo see exact traceback use -vvv" % 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
doc['returndocs'] = returndocs
if self.options.show_snippet:
text += DocCLI.get_snippet_text(doc)
else:
text += DocCLI.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.
self.display.warning("module %s missing documentation (or could not parse documentation)\n" % module)
CLI.pager(text)
return 0
def find_modules(self, path):
if os.path.isdir(path):
for module in os.listdir(path):
if module.startswith('.'):
continue
elif os.path.isdir(module):
self.find_modules(module)
elif any(module.endswith(x) for x in self.BLACKLIST_EXTS):
continue
elif module.startswith('__'):
continue
elif module in self.IGNORE_FILES:
continue
elif module.startswith('_'):
fullpath = '/'.join([path,module])
if os.path.islink(fullpath): # avoids aliases
continue
module = os.path.splitext(module)[0] # removes the extension
self.module_list.append(module)
def get_module_list_text(self):
tty_size = 0
if os.isatty(0):
tty_size = struct.unpack('HHHH',
fcntl.ioctl(0, termios.TIOCGWINSZ, struct.pack('HHHH', 0, 0, 0, 0)))[1]
columns = max(60, tty_size)
displace = max(len(x) for x in self.module_list)
linelimit = columns - displace - 5
text = []
deprecated = []
for module in sorted(set(self.module_list)):
if module in module_docs.BLACKLIST_MODULES:
continue
filename = module_loader.find_plugin(module)
if filename is None:
continue
if filename.endswith(".ps1"):
continue
if os.path.isdir(filename):
continue
try:
doc, plainexamples, returndocs = module_docs.get_docstring(filename)
desc = self.tty_ify(doc.get('short_description', '?')).strip()
if len(desc) > linelimit:
desc = desc[:linelimit] + '...'
if module.startswith('_'): # Handle deprecated
deprecated.append("%-*s %-*.*s" % (displace, module[1:], linelimit, len(desc), desc))
else:
text.append("%-*s %-*.*s" % (displace, module, linelimit, len(desc), desc))
except:
raise AnsibleError("module %s has a documentation error formatting or is missing documentation\n" % module)
if len(deprecated) > 0:
text.append("\nDEPRECATED:")
text.extend(deprecated)
return "\n".join(text)
@staticmethod
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)
@staticmethod
def get_snippet_text(doc):
text = []
desc = CLI.tty_ify(" ".join(doc['short_description']))
text.append("- name: %s" % (desc))
text.append(" action: %s" % (doc['module']))
for o in sorted(doc['options'].keys()):
opt = doc['options'][o]
desc = CLI.tty_ify(" ".join(opt['description']))
if opt.get('required', False):
s = o + "="
else:
s = o
text.append(" %-20s # %s" % (s, desc))
text.append('')
return "\n".join(text)
@staticmethod
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(CLI.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 sorted(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 + ")"
if 'default' in opt:
default = str(opt['default'])
desc = desc + " [Default: " + default + "]"
text.append("%s\n" % textwrap.fill(CLI.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(CLI.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(CLI.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("EXAMPLES:")
text.append(doc['plainexamples'])
if 'returndocs' in doc and doc['returndocs'] is not None:
text.append("RETURN VALUES:")
text.append(doc['returndocs'])
text.append('')
return "\n".join(text)
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