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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Generate Kate syntax file for CMake
#
# Copyright (c) 2017-2019 Alex Turbov <i.zaufi@gmail.com>
#
# To install prerequisites:
#
# $ pip install --user click jinja2 yaml
#
# To use:
#
# $ ./generate-cmake-syntax.py cmake.yaml > ../syntax/cmake.xml
#
import click
import jinja2
import pathlib
import re
import yaml
import pprint
_TEMPLATED_NAME = re.compile('<[^>]+>')
_PROPERTY_KEYS = [
'global-properties'
, 'directory-properties'
, 'target-properties'
, 'source-properties'
, 'test-properties'
, 'cache-properties'
, 'install-properties'
]
_KW_RE_LIST = ['kw', 're']
_VAR_KIND_LIST = ['variables', 'environment-variables']
def try_transform_placeholder_string_to_regex(name):
'''
NOTE Some placeholders are not IDs, but numbers...
`CMAKE_MATCH_<N>` 4 example
'''
m = _TEMPLATED_NAME.split(name)
if 'CMAKE_MATCH_' in m:
return '\\bCMAKE_MATCH_[0-9]+\\b'
if 'CMAKE_ARGV' in m:
return '\\bCMAKE_ARGV[0-9]+\\b'
return '\\b{}\\b'.format('&id_re;'.join(list(m))) if 1 < len(m) else name
def partition_iterable(fn, iterable):
true, false = [], []
for i in iterable:
(false, true)[int(fn(i))].append(i)
return true, false
def _transform_command_set(cmd, list_name):
args, args_re = partition_iterable(lambda x: _TEMPLATED_NAME.search(x) is None, cmd[list_name])
del cmd[list_name]
list_name = list_name.replace('-', '_')
cmd[list_name] = {k: sorted(set(v)) for k, v in zip(_KW_RE_LIST, [args, args_re])}
cmd[list_name]['re'] = [*map(lambda x: try_transform_placeholder_string_to_regex(x), args_re)]
return cmd
def transform_command(cmd):
can_be_nulary = True
if 'name' not in cmd:
raise RuntimeError('Command have no name')
if 'named-args' in cmd:
new_cmd = _transform_command_set(cmd, 'named-args')
assert new_cmd == cmd
can_be_nulary = False
if 'special-args' in cmd:
new_cmd = _transform_command_set(cmd, 'special-args')
assert new_cmd == cmd
can_be_nulary = False
if 'property-args' in cmd:
new_cmd = _transform_command_set(cmd, 'property-args')
assert new_cmd == cmd
can_be_nulary = False
cmd['nested_parentheses'] = cmd['nested-parentheses?'] if 'nested-parentheses?' in cmd else False
if 'nulary?' in cmd and cmd['nulary?'] and not can_be_nulary:
raise RuntimeError('Command `{}` w/ args declared nulary!?'.format(cmd['name']))
return cmd
#BEGIN Jinja filters
def cmd_is_nulary(cmd):
assert not ('named-args' in cmd or 'special-args' in cmd or 'property-args' in cmd)
return 'nulary?' in cmd and cmd['nulary?']
#END Jinja filters
@click.command()
@click.argument('input_yaml', type=click.File('r'))
@click.argument('template', type=click.File('r'), default='./cmake.xml.tpl')
def cli(input_yaml, template):
data = yaml.load(input_yaml)
# Partition `variables` and `environment-variables` lists into "pure" (key)words and regexes to match
for var_key in _VAR_KIND_LIST:
data[var_key] = {
k: sorted(set(v)) for k, v in zip(
_KW_RE_LIST
, [*partition_iterable(lambda x: _TEMPLATED_NAME.search(x) is None, data[var_key])]
)
}
data[var_key]['re'] = [
*map(
lambda x: try_transform_placeholder_string_to_regex(x)
, data[var_key]['re']
)
]
# Transform properties and make all-properties list
data['properties'] = {}
for prop in _PROPERTY_KEYS:
python_prop_list_name = prop.replace('-', '_')
props, props_re = partition_iterable(lambda x: _TEMPLATED_NAME.search(x) is None, data[prop])
del data[prop]
data['properties'][python_prop_list_name] = {
k: sorted(set(v)) for k, v in zip(_KW_RE_LIST, [props, props_re])
}
data['properties'][python_prop_list_name]['re'] = [
*map(lambda x: try_transform_placeholder_string_to_regex(x), props_re)
]
data['properties']['kinds'] = [*map(lambda name: name.replace('-', '_'), _PROPERTY_KEYS)]
# Make all commands list
data['commands'] = [
*map(
lambda cmd: transform_command(cmd)
, data['scripting-commands'] + data['project-commands'] + data['ctest-commands'])
]
# Fix node names to be accessible from Jinja template
data['generator_expressions'] = data['generator-expressions']
data['environment_variables'] = data['environment-variables']
del data['generator-expressions']
del data['environment-variables']
env = jinja2.Environment(
keep_trailing_newline=True
)
# Register convenience filters
env.tests['nulary'] = cmd_is_nulary
tpl = env.from_string(template.read())
result = tpl.render(data)
print(result)
if __name__ == '__main__':
cli()
# TODO Handle execptions and show errors
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