315 lines
10 KiB
Python
Executable file
315 lines
10 KiB
Python
Executable file
#!/usr/bin/env python
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# (c) 2012, Jan-Piet Mens <jpmens () 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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#
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import os
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import sys
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import textwrap
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import re
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import optparse
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import datetime
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import subprocess
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from ansible import utils
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from ansible.utils import module_docs
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import ansible.constants as C
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from ansible.utils import version
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import traceback
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MODULEDIR = C.DEFAULT_MODULE_PATH
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BLACKLIST_EXTS = ('.pyc', '.swp', '.bak', '~', '.rpm')
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_ITALIC = re.compile(r"I\(([^)]+)\)")
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_BOLD = re.compile(r"B\(([^)]+)\)")
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_MODULE = re.compile(r"M\(([^)]+)\)")
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_URL = re.compile(r"U\(([^)]+)\)")
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_CONST = re.compile(r"C\(([^)]+)\)")
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PAGER = 'less'
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LESS_OPTS = 'FRSX' # -F (quit-if-one-screen) -R (allow raw ansi control chars)
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# -S (chop long lines) -X (disable termcap init and de-init)
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def pager_print(text):
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''' just print text '''
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print text
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def pager_pipe(text, cmd):
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''' pipe text through a pager '''
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if 'LESS' not in os.environ:
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os.environ['LESS'] = LESS_OPTS
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try:
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cmd = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, stdout=sys.stdout)
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cmd.communicate(input=text)
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except IOError:
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pass
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except KeyboardInterrupt:
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pass
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def pager(text):
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''' find reasonable way to display text '''
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# this is a much simpler form of what is in pydoc.py
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if not sys.stdout.isatty():
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pager_print(text)
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elif 'PAGER' in os.environ:
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if sys.platform == 'win32':
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pager_print(text)
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else:
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pager_pipe(text, os.environ['PAGER'])
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elif hasattr(os, 'system') and os.system('(less) 2> /dev/null') == 0:
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pager_pipe(text, 'less')
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else:
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pager_print(text)
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def tty_ify(text):
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t = _ITALIC.sub("`" + r"\1" + "'", text) # I(word) => `word'
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t = _BOLD.sub("*" + r"\1" + "*", t) # B(word) => *word*
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t = _MODULE.sub("[" + r"\1" + "]", t) # M(word) => [word]
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t = _URL.sub(r"\1", t) # U(word) => word
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t = _CONST.sub("`" + r"\1" + "'", t) # C(word) => `word'
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return t
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def get_man_text(doc):
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opt_indent=" "
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text = []
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text.append("> %s\n" % doc['module'].upper())
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desc = " ".join(doc['description'])
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text.append("%s\n" % textwrap.fill(tty_ify(desc), initial_indent=" ", subsequent_indent=" "))
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if 'option_keys' in doc and len(doc['option_keys']) > 0:
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text.append("Options (= is mandatory):\n")
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for o in sorted(doc['option_keys']):
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opt = doc['options'][o]
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if opt.get('required', False):
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opt_leadin = "="
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else:
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opt_leadin = "-"
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text.append("%s %s" % (opt_leadin, o))
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desc = " ".join(opt['description'])
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if 'choices' in opt:
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choices = ", ".join(str(i) for i in opt['choices'])
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desc = desc + " (Choices: " + choices + ")"
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if 'default' in opt:
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default = str(opt['default'])
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desc = desc + " [Default: " + default + "]"
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text.append("%s\n" % textwrap.fill(tty_ify(desc), initial_indent=opt_indent,
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subsequent_indent=opt_indent))
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if 'notes' in doc and len(doc['notes']) > 0:
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notes = " ".join(doc['notes'])
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text.append("Notes:%s\n" % textwrap.fill(tty_ify(notes), initial_indent=" ",
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subsequent_indent=opt_indent))
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if 'requirements' in doc and doc['requirements'] is not None and len(doc['requirements']) > 0:
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req = ", ".join(doc['requirements'])
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text.append("Requirements:%s\n" % textwrap.fill(tty_ify(req), initial_indent=" ",
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subsequent_indent=opt_indent))
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if 'examples' in doc and len(doc['examples']) > 0:
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text.append("Example%s:\n" % ('' if len(doc['examples']) < 2 else 's'))
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for ex in doc['examples']:
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text.append("%s\n" % (ex['code']))
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if 'plainexamples' in doc and doc['plainexamples'] is not None:
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text.append(doc['plainexamples'])
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text.append('')
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return "\n".join(text)
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def get_snippet_text(doc):
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text = []
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desc = tty_ify(" ".join(doc['short_description']))
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text.append("- name: %s" % (desc))
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text.append(" action: %s" % (doc['module']))
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for o in sorted(doc['options'].keys()):
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opt = doc['options'][o]
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desc = tty_ify(" ".join(opt['description']))
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if opt.get('required', False):
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s = o + "="
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else:
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s = o
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text.append(" %-20s # %s" % (s, desc))
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text.append('')
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return "\n".join(text)
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def get_module_list_text(module_list):
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columns = max(60, int(os.popen('stty size', 'r').read().split()[1]))
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displace = max(len(x) for x in module_list)
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linelimit = columns - displace - 5
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text = []
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deprecated = []
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for module in sorted(set(module_list)):
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if module in module_docs.BLACKLIST_MODULES:
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continue
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filename = utils.plugins.module_finder.find_plugin(module)
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if filename is None:
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continue
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if filename.endswith(".ps1"):
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continue
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if os.path.isdir(filename):
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continue
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try:
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doc, plainexamples = module_docs.get_docstring(filename)
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desc = tty_ify(doc.get('short_description', '?')).strip()
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if len(desc) > linelimit:
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desc = desc[:linelimit] + '...'
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if module.startswith('_'): # Handle replecated
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module = module[1:]
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deprecated.append("%-*s %-*.*s" % (displace, module, linelimit, len(desc), desc))
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else:
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text.append("%-*s %-*.*s" % (displace, module, linelimit, len(desc), desc))
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except:
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traceback.print_exc()
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sys.stderr.write("ERROR: module %s has a documentation error formatting or is missing documentation\n" % module)
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if len(deprecated) > 0:
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text.append("\nDEPRECATED:")
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text.extend(deprecated)
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return "\n".join(text)
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def main():
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p = optparse.OptionParser(
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version=version("%prog"),
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usage='usage: %prog [options] [module...]',
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description='Show Ansible module documentation',
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)
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p.add_option("-M", "--module-path",
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action="store",
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dest="module_path",
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default=MODULEDIR,
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help="Ansible modules/ directory")
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p.add_option("-l", "--list",
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action="store_true",
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default=False,
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dest='list_dir',
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help='List available modules')
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p.add_option("-s", "--snippet",
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action="store_true",
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default=False,
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dest='show_snippet',
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help='Show playbook snippet for specified module(s)')
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p.add_option('-v', action='version', help='Show version number and exit')
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(options, args) = p.parse_args()
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if options.module_path is not None:
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for i in options.module_path.split(os.pathsep):
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utils.plugins.module_finder.add_directory(i)
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if options.list_dir or options.list_deprecated:
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# list modules
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paths = utils.plugins.module_finder._get_paths()
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module_list = []
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for path in paths:
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if os.path.isdir(path):
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for module in os.listdir(path):
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if any(module.endswith(x) for x in BLACKLIST_EXTS):
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continue
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elif module.startswith('__'):
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continue
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elif module.startswith('_'):
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fullpath = '/'.join([path,module])
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if os.path.islink(fullpath): # avoids aliases
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continue
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module = os.path.splitext(module)[0] # removes the extension
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module_list.append(module)
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pager(get_module_list_text(module_list))
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sys.exit()
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if len(args) == 0:
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p.print_help()
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def print_paths(finder):
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''' Returns a string suitable for printing of the search path '''
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# Uses a list to get the order right
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ret = []
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for i in finder._get_paths():
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if i not in ret:
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ret.append(i)
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return os.pathsep.join(ret)
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text = ''
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for module in args:
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filename = utils.plugins.module_finder.find_plugin(module)
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if filename is None:
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sys.stderr.write("module %s not found in %s\n" % (module,
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print_paths(utils.plugins.module_finder)))
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continue
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if any(filename.endswith(x) for x in BLACKLIST_EXTS):
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continue
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try:
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doc, plainexamples = module_docs.get_docstring(filename)
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except:
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traceback.print_exc()
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sys.stderr.write("ERROR: module %s has a documentation error formatting or is missing documentation\n" % module)
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continue
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if doc is not None:
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all_keys = []
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for (k,v) in doc['options'].iteritems():
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all_keys.append(k)
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all_keys = sorted(all_keys)
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doc['option_keys'] = all_keys
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doc['filename'] = filename
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doc['docuri'] = doc['module'].replace('_', '-')
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doc['now_date'] = datetime.date.today().strftime('%Y-%m-%d')
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doc['plainexamples'] = plainexamples
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if options.show_snippet:
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text += get_snippet_text(doc)
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else:
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text += get_man_text(doc)
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else:
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# this typically means we couldn't even parse the docstring, not just that the YAML is busted,
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# probably a quoting issue.
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sys.stderr.write("ERROR: module %s missing documentation (or could not parse documentation)\n" % module)
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pager(text)
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if __name__ == '__main__':
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main()
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