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Add docopt for a beter ei_handler.py cli

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Thomas Applencourt 2015-04-02 10:20:56 +02:00
parent 1b6a3d74a1
commit 295579b7d9
2 changed files with 670 additions and 55 deletions
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scripts/docopt.py Executable file
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@ -0,0 +1,590 @@
"""Pythonic command-line interface parser that will make you smile.
* http://docopt.org
* Repository and issue-tracker: https://github.com/docopt/docopt
* Licensed under terms of MIT license (see LICENSE-MIT)
* Copyright (c) 2013 Vladimir Keleshev, vladimir@keleshev.com
"""
import sys
import re
__all__ = ['docopt']
__version__ = '0.6.1'
class DocoptLanguageError(Exception):
"""Error in construction of usage-message by developer."""
class DocoptExit(SystemExit):
"""Exit in case user invoked program with incorrect arguments."""
usage = ''
def __init__(self, message=''):
SystemExit.__init__(self, (message + '\n' + self.usage).strip())
class Pattern(object):
def __eq__(self, other):
return repr(self) == repr(other)
def __hash__(self):
return hash(repr(self))
def fix(self):
self.fix_identities()
self.fix_repeating_arguments()
return self
def fix_identities(self, uniq=None):
"""Make pattern-tree tips point to same object if they are equal."""
if not hasattr(self, 'children'):
return self
uniq = list(set(self.flat())) if uniq is None else uniq
for i, child in enumerate(self.children):
if not hasattr(child, 'children'):
assert child in uniq
self.children[i] = uniq[uniq.index(child)]
else:
child.fix_identities(uniq)
def fix_repeating_arguments(self):
"""Fix elements that should accumulate/increment values."""
either = [list(child.children) for child in transform(self).children]
for case in either:
for e in [child for child in case if case.count(child) > 1]:
if isinstance(
e,
Argument) or isinstance(
e,
Option) and e.argcount:
if e.value is None:
e.value = []
elif not isinstance(e.value, list):
e.value = e.value.split()
if isinstance(
e,
Command) or isinstance(
e,
Option) and e.argcount == 0:
e.value = 0
return self
def transform(pattern):
"""Expand pattern into an (almost) equivalent one, but with single Either.
Example: ((-a | -b) (-c | -d)) => (-a -c | -a -d | -b -c | -b -d)
Quirks: [-a] => (-a), (-a...) => (-a -a)
"""
result = []
groups = [[pattern]]
while groups:
children = groups.pop(0)
parents = [Required, Optional, OptionsShortcut, Either, OneOrMore]
if any(t in map(type, children) for t in parents):
child = [c for c in children if type(c) in parents][0]
children.remove(child)
if isinstance(child, Either):
for c in child.children:
groups.append([c] + children)
elif isinstance(child, OneOrMore):
groups.append(child.children * 2 + children)
else:
groups.append(child.children + children)
else:
result.append(children)
return Either(*[Required(*e) for e in result])
class LeafPattern(Pattern):
"""Leaf/terminal node of a pattern tree."""
def __init__(self, name, value=None):
self.name, self.value = name, value
def __repr__(self):
return '%s(%r, %r)' % (self.__class__.__name__, self.name, self.value)
def flat(self, *types):
return [self] if not types or type(self) in types else []
def match(self, left, collected=None):
collected = [] if collected is None else collected
pos, match = self.single_match(left)
if match is None:
return False, left, collected
left_ = left[:pos] + left[pos + 1:]
same_name = [a for a in collected if a.name == self.name]
if type(self.value) in (int, list):
if isinstance(self.value, int):
increment = 1
else:
increment = ([match.value] if isinstance(match.value, str)
else match.value)
if not same_name:
match.value = increment
return True, left_, collected + [match]
same_name[0].value += increment
return True, left_, collected
return True, left_, collected + [match]
class BranchPattern(Pattern):
"""Branch/inner node of a pattern tree."""
def __init__(self, *children):
self.children = list(children)
def __repr__(self):
return '%s(%s)' % (self.__class__.__name__,
', '.join(repr(a) for a in self.children))
def flat(self, *types):
if type(self) in types:
return [self]
return sum([child.flat(*types) for child in self.children], [])
class Argument(LeafPattern):
def single_match(self, left):
for n, pattern in enumerate(left):
if isinstance(pattern, Argument):
return n, Argument(self.name, pattern.value)
return None, None
@classmethod
def parse(class_, source):
name = re.findall('(<\S*?>)', source)[0]
value = re.findall('\[default: (.*)\]', source, flags=re.I)
return class_(name, value[0] if value else None)
class Command(Argument):
def __init__(self, name, value=False):
self.name, self.value = name, value
def single_match(self, left):
for n, pattern in enumerate(left):
if isinstance(pattern, Argument):
if pattern.value == self.name:
return n, Command(self.name, True)
else:
break
return None, None
class Option(LeafPattern):
def __init__(self, short=None, long=None, argcount=0, value=False):
assert argcount in (0, 1)
self.short, self.long, self.argcount = short, long, argcount
self.value = None if value is False and argcount else value
@classmethod
def parse(class_, option_description):
short, long, argcount, value = None, None, 0, False
options, _, description = option_description.strip().partition(' ')
options = options.replace(',', ' ').replace('=', ' ')
for s in options.split():
if s.startswith('--'):
long = s
elif s.startswith('-'):
short = s
else:
argcount = 1
if argcount:
matched = re.findall('\[default: (.*)\]', description, flags=re.I)
value = matched[0] if matched else None
return class_(short, long, argcount, value)
def single_match(self, left):
for n, pattern in enumerate(left):
if self.name == pattern.name:
return n, pattern
return None, None
@property
def name(self):
return self.long or self.short
def __repr__(self):
return 'Option(%r, %r, %r, %r)' % (self.short, self.long,
self.argcount, self.value)
class Required(BranchPattern):
def match(self, left, collected=None):
collected = [] if collected is None else collected
l = left
c = collected
for pattern in self.children:
matched, l, c = pattern.match(l, c)
if not matched:
return False, left, collected
return True, l, c
class Optional(BranchPattern):
def match(self, left, collected=None):
collected = [] if collected is None else collected
for pattern in self.children:
m, left, collected = pattern.match(left, collected)
return True, left, collected
class OptionsShortcut(Optional):
"""Marker/placeholder for [options] shortcut."""
class OneOrMore(BranchPattern):
def match(self, left, collected=None):
assert len(self.children) == 1
collected = [] if collected is None else collected
l = left
c = collected
l_ = None
matched = True
times = 0
while matched:
# could it be that something didn't match but changed l or c?
matched, l, c = self.children[0].match(l, c)
times += 1 if matched else 0
if l_ == l:
break
l_ = l
if times >= 1:
return True, l, c
return False, left, collected
class Either(BranchPattern):
def match(self, left, collected=None):
collected = [] if collected is None else collected
outcomes = []
for pattern in self.children:
matched, _, _ = outcome = pattern.match(left, collected)
if matched:
outcomes.append(outcome)
if outcomes:
return min(outcomes, key=lambda outcome: len(outcome[1]))
return False, left, collected
class Tokens(list):
def __init__(self, source, error=DocoptExit):
self += source.split() if hasattr(source, 'split') else source
self.error = error
@staticmethod
def from_pattern(source):
source = re.sub(r'([\[\]\(\)\|]|\.\.\.)', r' \1 ', source)
source = [s for s in re.split('\s+|(\S*<.*?>)', source) if s]
return Tokens(source, error=DocoptLanguageError)
def move(self):
return self.pop(0) if len(self) else None
def current(self):
return self[0] if len(self) else None
def parse_long(tokens, options):
"""long ::= '--' chars [ ( ' ' | '=' ) chars ] ;"""
long, eq, value = tokens.move().partition('=')
assert long.startswith('--')
value = None if eq == value == '' else value
similar = [o for o in options if o.long == long]
if tokens.error is DocoptExit and similar == []: # if no exact match
similar = [o for o in options if o.long and o.long.startswith(long)]
if len(similar) > 1: # might be simply specified ambiguously 2+ times?
raise tokens.error('%s is not a unique prefix: %s?' %
(long, ', '.join(o.long for o in similar)))
elif len(similar) < 1:
argcount = 1 if eq == '=' else 0
o = Option(None, long, argcount)
options.append(o)
if tokens.error is DocoptExit:
o = Option(None, long, argcount, value if argcount else True)
else:
o = Option(similar[0].short, similar[0].long,
similar[0].argcount, similar[0].value)
if o.argcount == 0:
if value is not None:
raise tokens.error('%s must not have an argument' % o.long)
else:
if value is None:
if tokens.current() in [None, '--']:
raise tokens.error('%s requires argument' % o.long)
value = tokens.move()
if tokens.error is DocoptExit:
o.value = value if value is not None else True
return [o]
def parse_shorts(tokens, options):
"""shorts ::= '-' ( chars )* [ [ ' ' ] chars ] ;"""
token = tokens.move()
assert token.startswith('-') and not token.startswith('--')
left = token.lstrip('-')
parsed = []
while left != '':
short, left = '-' + left[0], left[1:]
similar = [o for o in options if o.short == short]
if len(similar) > 1:
raise tokens.error('%s is specified ambiguously %d times' %
(short, len(similar)))
elif len(similar) < 1:
o = Option(short, None, 0)
options.append(o)
if tokens.error is DocoptExit:
o = Option(short, None, 0, True)
else: # why copying is necessary here?
o = Option(short, similar[0].long,
similar[0].argcount, similar[0].value)
value = None
if o.argcount != 0:
if left == '':
if tokens.current() in [None, '--']:
raise tokens.error('%s requires argument' % short)
value = tokens.move()
else:
value = left
left = ''
if tokens.error is DocoptExit:
o.value = value if value is not None else True
parsed.append(o)
return parsed
def parse_pattern(source, options):
tokens = Tokens.from_pattern(source)
result = parse_expr(tokens, options)
if tokens.current() is not None:
raise tokens.error('unexpected ending: %r' % ' '.join(tokens))
return Required(*result)
def parse_expr(tokens, options):
"""expr ::= seq ( '|' seq )* ;"""
seq = parse_seq(tokens, options)
if tokens.current() != '|':
return seq
result = [Required(*seq)] if len(seq) > 1 else seq
while tokens.current() == '|':
tokens.move()
seq = parse_seq(tokens, options)
result += [Required(*seq)] if len(seq) > 1 else seq
return [Either(*result)] if len(result) > 1 else result
def parse_seq(tokens, options):
"""seq ::= ( atom [ '...' ] )* ;"""
result = []
while tokens.current() not in [None, ']', ')', '|']:
atom = parse_atom(tokens, options)
if tokens.current() == '...':
atom = [OneOrMore(*atom)]
tokens.move()
result += atom
return result
def parse_atom(tokens, options):
"""atom ::= '(' expr ')' | '[' expr ']' | 'options'
| long | shorts | argument | command ;
"""
token = tokens.current()
result = []
if token in '([':
tokens.move()
matching, pattern = {'(': [')', Required], '[': [']', Optional]}[token]
result = pattern(*parse_expr(tokens, options))
if tokens.move() != matching:
raise tokens.error("unmatched '%s'" % token)
return [result]
elif token == 'options':
tokens.move()
return [OptionsShortcut()]
elif token.startswith('--') and token != '--':
return parse_long(tokens, options)
elif token.startswith('-') and token not in ('-', '--'):
return parse_shorts(tokens, options)
elif token.startswith('<') and token.endswith('>') or token.isupper():
return [Argument(tokens.move())]
else:
return [Command(tokens.move())]
def parse_argv(tokens, options, options_first=False):
"""Parse command-line argument vector.
If options_first:
argv ::= [ long | shorts ]* [ argument ]* [ '--' [ argument ]* ] ;
else:
argv ::= [ long | shorts | argument ]* [ '--' [ argument ]* ] ;
"""
parsed = []
while tokens.current() is not None:
if tokens.current() == '--':
return parsed + [Argument(None, v) for v in tokens]
elif tokens.current().startswith('--'):
parsed += parse_long(tokens, options)
elif tokens.current().startswith('-') and tokens.current() != '-':
parsed += parse_shorts(tokens, options)
elif options_first:
return parsed + [Argument(None, v) for v in tokens]
else:
parsed.append(Argument(None, tokens.move()))
return parsed
def parse_defaults(doc):
defaults = []
for s in parse_section('options:', doc):
# FIXME corner case "bla: options: --foo"
_, _, s = s.partition(':') # get rid of "options:"
split = re.split('\n[ \t]*(-\S+?)', '\n' + s)[1:]
split = [s1 + s2 for s1, s2 in zip(split[::2], split[1::2])]
options = [Option.parse(s) for s in split if s.startswith('-')]
defaults += options
return defaults
def parse_section(name, source):
pattern = re.compile('^([^\n]*' + name + '[^\n]*\n?(?:[ \t].*?(?:\n|$))*)',
re.IGNORECASE | re.MULTILINE)
return [s.strip() for s in pattern.findall(source)]
def formal_usage(section):
_, _, section = section.partition(':') # drop "usage:"
pu = section.split()
return '( ' + ' '.join(') | (' if s == pu[0] else s for s in pu[1:]) + ' )'
def extras(help, version, options, doc):
if help and any((o.name in ('-h', '--help')) and o.value for o in options):
print(doc.strip("\n"))
sys.exit()
if version and any(o.name == '--version' and o.value for o in options):
print(version)
sys.exit()
class Dict(dict):
def __repr__(self):
return '{%s}' % ',\n '.join('%r: %r' % i for i in sorted(self.items()))
def docopt(doc, argv=None, help=True, version=None, options_first=False):
"""Parse `argv` based on command-line interface described in `doc`.
`docopt` creates your command-line interface based on its
description that you pass as `doc`. Such description can contain
--options, <positional-argument>, commands, which could be
[optional], (required), (mutually | exclusive) or repeated...
Parameters
----------
doc : str
Description of your command-line interface.
argv : list of str, optional
Argument vector to be parsed. sys.argv[1:] is used if not
provided.
help : bool (default: True)
Set to False to disable automatic help on -h or --help
options.
version : any object
If passed, the object will be printed if --version is in
`argv`.
options_first : bool (default: False)
Set to True to require options precede positional arguments,
i.e. to forbid options and positional arguments intermix.
Returns
-------
args : dict
A dictionary, where keys are names of command-line elements
such as e.g. "--verbose" and "<path>", and values are the
parsed values of those elements.
Example
-------
>>> from docopt import docopt
>>> doc = '''
... Usage:
... my_program tcp <host> <port> [--timeout=<seconds>]
... my_program serial <port> [--baud=<n>] [--timeout=<seconds>]
... my_program (-h | --help | --version)
...
... Options:
... -h, --help Show this screen and exit.
... --baud=<n> Baudrate [default: 9600]
... '''
>>> argv = ['tcp', '127.0.0.1', '80', '--timeout', '30']
>>> docopt(doc, argv)
{'--baud': '9600',
'--help': False,
'--timeout': '30',
'--version': False,
'<host>': '127.0.0.1',
'<port>': '80',
'serial': False,
'tcp': True}
See also
--------
* For video introduction see http://docopt.org
* Full documentation is available in README.rst as well as online
at https://github.com/docopt/docopt#readme
"""
argv = sys.argv[1:] if argv is None else argv
usage_sections = parse_section('usage:', doc)
if len(usage_sections) == 0:
raise DocoptLanguageError('"usage:" (case-insensitive) not found.')
if len(usage_sections) > 1:
raise DocoptLanguageError('More than one "usage:" (case-insensitive).')
DocoptExit.usage = usage_sections[0]
options = parse_defaults(doc)
pattern = parse_pattern(formal_usage(DocoptExit.usage), options)
# [default] syntax for argument is disabled
# for a in pattern.flat(Argument):
# same_name = [d for d in arguments if d.name == a.name]
# if same_name:
# a.value = same_name[0].value
argv = parse_argv(Tokens(argv), list(options), options_first)
pattern_options = set(pattern.flat(Option))
for options_shortcut in pattern.flat(OptionsShortcut):
doc_options = parse_defaults(doc)
options_shortcut.children = list(set(doc_options) - pattern_options)
# if any_options:
# options_shortcut.children += [Option(o.short, o.long, o.argcount)
# for o in argv if type(o) is Option]
extras(help, version, argv, doc)
matched, left, collected = pattern.fix().match(argv)
if matched and left == []: # better error message if left?
return Dict((a.name, a.value) for a in (pattern.flat() + collected))
raise DocoptExit()

135
scripts/ezfio_interface/ei_handler.py
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@ -1,26 +1,40 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Take a path in argv
Check if EZFIO.cfg exists.
EZFIO.cfg are in MODULE directories.
create : ezfio_interface.irp.f
folder_ezfio_inteface_config
Ezfio_dir : is equal to MODULE.lower!
Welcom the ei_handler.
We will create all the ezfio related stuff from a EZFIO.cfg file.
Usage:
ei_handler.py [--path] [--irpf90] [--ezfio_config] [--ocaml] [--ezfio_default]
By default all the option are executed.
Options:
-h --help
--path The path of the `EZFIO.cfg`, by default will look in the ${pwd}
--irpf90 Create the `ezfio_interface.ipf90`
who containt all the provider needed
(aka all with the `interface: input` parameter)
in `${pwd}`
--ezfio_config Create the `${module_lower}_ezfio_interface_config` in
`${QPACKAGE_ROOT}/EZFIO/config/`
This file is needed by *EZFIO* to create the `libezfio.so`
--ocaml Create the `Input_module.lower.ml` for the *qp_edit*
--ezfio_default Create the `${module_lower}_ezfio_interface_default` in
`${QPACKAGE_ROOT}/data/ezfio_defaults` needed by
the ocaml
Format specification :
[provider_name] : the name of the provider in irp.f90
- doc : Is the doc
- Type : Is a fancy_type support by the ocaml
- ezfio_name : Will be the name of the file for the ezfio
(optional by default is the name of the provider)
- interface : The provider is a imput or a output
- default : The default value if interface == input:
- size : Is the string read in ezfio.cgf who containt the size information
(like 1 or =sum(ao_num) or (ao_num,3) )
[provider_name] | the name of the provider in irp.f90
doc:{str} | Is the doc
Type:{str} | Is a fancy_type support by the ocaml
ezfio_name:{str} | Will be the name of the file for the ezfio
(optional by default is the name of the provider)
interface:{str} | The provider is a imput or a output
default:{str} | The default value if interface == input:
size:{str} | the size information
(like 1 or =sum(ao_num) or (ao_num,3) )
Example EZFIO.cfg:
Example of EZFIO.cfg:
```
[thresh_SCF]
doc: Threshold on the convergence of the Hartree Fock energy
@ -34,8 +48,8 @@ type: double precision
doc: Calculated HF energy
interface: output
```
"""
from docopt import docopt
import sys
import os
@ -586,28 +600,22 @@ def save_ocaml_input(module_lower, str_ocaml_input):
f.write(str_ocaml_input)
def main():
"""
Two condition:
-Take the EZFIO.cfg path in arg
or
-Look if EZFIO.cfg is present in the pwd
if __name__ == "__main__":
arguments = docopt(__doc__)
Return : - ezfio_interface.irp.f
- folder_ezfio_inteface_config
"""
# ___
# | ._ o _|_
# _|_ | | | |_
#
# ~#~#~#~# #
# I n i t #
# ~#~#~#~# #
try:
config_file_path = sys.argv[1]
except:
if not arguments["--path"]:
config_file_path = "EZFIO.cfg"
if "EZFIO.cfg" not in os.listdir(os.getcwd()):
sys.exit(0)
else:
config_file_path = arguments["path"]
# Get the full path
config_file_path = os.path.expanduser(config_file_path)
config_file_path = os.path.expandvars(config_file_path)
config_file_path = os.path.abspath(config_file_path)
@ -624,34 +632,51 @@ def main():
ezfio_dir = module_lower
dict_ezfio_cfg = get_dict_config_file(config_file_path, ezfio_dir)
# _
# / _ _| _ _ _ ._ _ ._ _. _|_ o _ ._
# \_ (_) (_| (/_ (_| (/_ | | (/_ | (_| |_ | (_) | |
# _|
# ~#~#~#~#~#~#~#~#~#~ #
# W h a t _ t o _ d o #
# ~#~#~#~#~#~#~#~#~#~ #
if any([arguments[i] for i in ["--irpf90",
"--ezfio_config",
"--ocaml",
"--ezfio_default",
]]):
# User changer somme argument, do what he want
do_all = False
else:
# Do all the stuff
do_all = True
# ~#~#~#~#~#~#~ #
# I R P . f 9 0 #
# ~#~#~#~#~#~#~ #
if do_all or arguments["--irpf90"]:
l_str_code = create_ezfio_provider(dict_ezfio_cfg)
save_ezfio_provider(path_dirname, l_str_code)
# ~#~#~#~#~#~#~#~#~#~#~#~ #
# e z f i o _ c o n f i g #
# ~#~#~#~#~#~#~#~#~#~#~#~ #
if do_all or arguments["--ezfio_config"]:
str_ezfio_config = create_ezfio_config(dict_ezfio_cfg)
save_ezfio_config(module_lower, str_ezfio_config)
# ~#~#~#~#~#~#
# O c a m l #
# O c a m l #
# ~#~#~#~#~#~#
str_ocaml_input = create_ocaml_input(dict_ezfio_cfg, module_lower)
save_ocaml_input(module_lower, str_ocaml_input)
# ~#~#~#~#~#~#~#~#
# I R P . f 9 0 #
# ~#~#~#~#~#~#~#~#
l_str_code = create_ezfio_provider(dict_ezfio_cfg)
save_ezfio_provider(path_dirname, l_str_code)
# ~#~#~#~#~#~#~#~#~#~#~#~# #
# e z f i o _ c o n f i g #
# ~#~#~#~#~#~#~#~#~#~#~#~# #
str_ezfio_config = create_ezfio_config(dict_ezfio_cfg)
save_ezfio_config(module_lower, str_ezfio_config)
# ~#~#~#~#~#~#~#~#~#~#~#~#~#~ #
# e z f i o _ d e f a u l t #
# ~#~#~#~#~#~#~#~#~#~#~#~#~#~ #
# ~#~#~#~#~#~#~#~#~#~#~#~#~ #
# e z f i o _ d e f a u l t #
# ~#~#~#~#~#~#~#~#~#~#~#~#~ #
str_ezfio_default = create_ezfio_default(dict_ezfio_cfg)
save_ezfio_default(module_lower, str_ezfio_default)
if __name__ == "__main__":
main()