#!/usr/bin/env python3
import os
import re
import sys
import shutil
try:
from .docs_writer import DocsWriter
except (ImportError, SystemError):
from docs_writer import DocsWriter
# Small trick so importing telethon_generator works
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
from telethon_generator.parser import TLParser, TLObject
# TLObject -> Python class name
def get_class_name(tlobject):
"""Gets the class name following the Python style guidelines"""
# Courtesy of http://stackoverflow.com/a/31531797/4759433
name = tlobject.name if isinstance(tlobject, TLObject) else tlobject
result = re.sub(r'_([a-z])', lambda m: m.group(1).upper(), name)
# Replace '_' with '' once again to make sure it doesn't appear on the name
result = result[:1].upper() + result[1:].replace('_', '')
# If it's a function, let it end with "Request" to identify them more easily
if isinstance(tlobject, TLObject) and tlobject.is_function:
result += 'Request'
return result
# TLObject -> filename
def get_file_name(tlobject, add_extension=False):
"""Gets the file name in file_name_format.html for the given TLObject.
Only its name may also be given if the full TLObject is not available"""
if isinstance(tlobject, TLObject):
name = tlobject.name
else:
name = tlobject
# Courtesy of http://stackoverflow.com/a/1176023/4759433
s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', name)
result = re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1).lower()
if add_extension:
return result + '.html'
else:
return result
# TLObject -> from ... import ...
def get_import_code(tlobject):
kind = 'functions' if tlobject.is_function else 'types'
ns = '.' + tlobject.namespace if tlobject.namespace else ''
return 'from telethon.tl.{}{} import {}'\
.format(kind, ns, get_class_name(tlobject))
def get_create_path_for(tlobject):
"""Gets the file path (and creates the parent directories)
for the given 'tlobject', relative to nothing; only its local path"""
# Determine the output directory
out_dir = 'methods' if tlobject.is_function else 'constructors'
if tlobject.namespace:
out_dir = os.path.join(out_dir, tlobject.namespace)
# Ensure that it exists
os.makedirs(out_dir, exist_ok=True)
# Return the resulting filename
return os.path.join(out_dir, get_file_name(tlobject, add_extension=True))
def is_core_type(type_):
"""Returns "true" if the type is considered a core type"""
return type_.lower() in {
'int', 'long', 'int128', 'int256', 'double',
'vector', 'string', 'bool', 'true', 'bytes', 'date'
}
def get_path_for_type(type_, relative_to='.'):
"""Similar to getting the path for a TLObject, it might not be possible
to have the TLObject itself but rather its name (the type);
this method works in the same way, returning a relative path"""
if is_core_type(type_):
path = 'index.html#%s' % type_.lower()
elif '.' in type_:
# If it's not a core type, then it has to be a custom Telegram type
namespace, name = type_.split('.')
path = 'types/%s/%s' % (namespace, get_file_name(name, True))
else:
path = 'types/%s' % get_file_name(type_, True)
return get_relative_path(path, relative_to)
# Destination path from the current position -> relative to the given path
def get_relative_path(destination, relative_to):
if os.path.isfile(relative_to):
relative_to = os.path.dirname(relative_to)
return os.path.relpath(destination, start=relative_to)
def get_relative_paths(original, relative_to):
"""Converts the dictionary of 'original' paths to relative paths
starting from the given 'relative_to' file"""
return {k: get_relative_path(v, relative_to) for k, v in original.items()}
# Generate a index.html file for the given folder
def find_title(html_file):
"""Finds the <title> for the given HTML file, or (Unknown)"""
with open(html_file) as handle:
for line in handle:
if '<title>' in line:
# + 7 to skip len('<title>')
return line[line.index('<title>') + 7:line.index('</title>')]
return '(Unknown)'
def build_menu(docs, filename, relative_main_index):
"""Builds the menu using the given DocumentWriter up to 'filename',
which must be a file (it cannot be a directory)"""
# TODO Maybe this could be part of DocsWriter itself, "build path menu"
docs.add_menu('API', relative_main_index)
items = filename.split('/')
for i in range(len(items) - 1):
item = items[i]
link = '../' * (len(items) - (i + 2))
link += 'index.html'
docs.add_menu(item.title(), link=link)
if items[-1] != 'index.html':
docs.add_menu(os.path.splitext(items[-1])[0])
docs.end_menu()
def generate_index(folder, original_paths):
"""Generates the index file for the specified folder"""
# Determine the namespaces listed here (as sub folders)
# and the files (.html files) that we should link to
namespaces = []
files = []
for item in os.listdir(folder):
if os.path.isdir(os.path.join(folder, item)):
namespaces.append(item)
elif item != 'index.html':
files.append(item)
# We work with relative paths
paths = get_relative_paths(original_paths, relative_to=folder)
# Now that everything is setup, write the index.html file
filename = os.path.join(folder, 'index.html')
with DocsWriter(filename, type_to_path_function=get_path_for_type) as docs:
# Title should be the current folder name
docs.write_head(folder.title(), relative_css_path=paths['css'])
docs.set_menu_separator(paths['arrow'])
build_menu(docs, filename, relative_main_index=paths['index_all'])
docs.write_title(folder.title())
if namespaces:
docs.write_title('Namespaces', level=3)
docs.begin_table(4)
namespaces.sort()
for namespace in namespaces:
# For every namespace, also write the index of it
generate_index(os.path.join(folder, namespace), original_paths)
docs.add_row(namespace.title(),
link=os.path.join(namespace, 'index.html'))
docs.end_table()
docs.write_title('Available items')
docs.begin_table(2)
files = [(f, find_title(os.path.join(folder, f))) for f in files]
files.sort(key=lambda t: t[1])
for file, title in files:
docs.add_row(title, link=file)
docs.end_table()
docs.end_body()
def get_description(arg):
"""Generates a proper description for the given argument"""
desc = []
otherwise = False
if arg.can_be_inferred:
desc.append('If left unspecified, it will be inferred automatically.')
otherwise = True
elif arg.is_flag:
desc.append('This argument can be omitted.')
otherwise = True
if arg.is_vector:
if arg.is_generic:
desc.append('A list of other Requests must be supplied.')
else:
desc.append('A list must be supplied.')
elif arg.is_generic:
desc.append('A different Request must be supplied for this argument.')
else:
otherwise = False # Always reset to false if no other text is added
if otherwise:
desc.insert(1, 'Otherwise,')
desc[-1] = desc[-1][:1].lower() + desc[-1][1:]
return ' '.join(desc)
def copy_replace(src, dst, replacements):
"""Copies the src file into dst applying the replacements dict"""
with open(src) as infile, open(dst, 'w') as outfile:
outfile.write(re.sub(
'|'.join(re.escape(k) for k in replacements),
lambda m: str(replacements[m.group(0)]),
infile.read()
))
def generate_documentation(scheme_file):
"""Generates the documentation HTML files from from scheme.tl to
/methods and /constructors, etc.
"""
original_paths = {
'css': 'css/docs.css',
'arrow': 'img/arrow.svg',
'search.js': 'js/search.js',
'404': '404.html',
'index_all': 'index.html',
'index_types': 'types/index.html',
'index_methods': 'methods/index.html',
'index_constructors': 'constructors/index.html'
}
tlobjects = tuple(TLParser.parse_file(scheme_file))
print('Generating constructors and functions documentation...')
# Save 'Type: [Constructors]' for use in both:
# * Seeing the return type or constructors belonging to the same type.
# * Generating the types documentation, showing available constructors.
# TODO Tried using 'defaultdict(list)' with strange results, make it work.
tltypes = {}
tlfunctions = {}
for tlobject in tlobjects:
# Select to which dictionary we want to store this type
dictionary = tlfunctions if tlobject.is_function else tltypes
if tlobject.result in dictionary:
dictionary[tlobject.result].append(tlobject)
else:
dictionary[tlobject.result] = [tlobject]
for tltype, constructors in tltypes.items():
tltypes[tltype] = list(sorted(constructors, key=lambda c: c.name))
for tlobject in tlobjects:
filename = get_create_path_for(tlobject)
# Determine the relative paths for this file
paths = get_relative_paths(original_paths, relative_to=filename)
with DocsWriter(filename, type_to_path_function=get_path_for_type) \
as docs:
docs.write_head(
title=get_class_name(tlobject),
relative_css_path=paths['css'])
# Create the menu (path to the current TLObject)
docs.set_menu_separator(paths['arrow'])
build_menu(docs, filename, relative_main_index=paths['index_all'])
# Create the page title
docs.write_title(get_class_name(tlobject))
# Write the code definition for this TLObject
docs.write_code(tlobject)
docs.write_copy_button('Copy import to the clipboard',
get_import_code(tlobject))
# Write the return type (or constructors belonging to the same type)
docs.write_title('Returns' if tlobject.is_function
else 'Belongs to', level=3)
generic_arg = next((arg.name for arg in tlobject.args
if arg.generic_definition), None)
if tlobject.result == generic_arg:
# We assume it's a function returning a generic type
generic_arg = next((arg.name for arg in tlobject.args
if arg.is_generic))
docs.write_text('This function returns the result of whatever '
'the result from invoking the request passed '
'through <i>{}</i> is.'.format(generic_arg))
else:
if re.search('^vector<', tlobject.result, re.IGNORECASE):
docs.write_text('A list of the following type is returned.')
_, inner = tlobject.result.split('<')
inner = inner.strip('>')
else:
inner = tlobject.result
docs.begin_table(column_count=1)
docs.add_row(inner, link=get_path_for_type(
inner, relative_to=filename
))
docs.end_table()
constructors = tltypes.get(inner, [])
if not constructors:
docs.write_text('This type has no instances available.')
elif len(constructors) == 1:
docs.write_text('This type can only be an instance of:')
else:
docs.write_text('This type can be an instance of either:')
docs.begin_table(column_count=2)
for constructor in constructors:
link = get_create_path_for(constructor)
link = get_relative_path(link, relative_to=filename)
docs.add_row(get_class_name(constructor), link=link)
docs.end_table()
# Return (or similar types) written. Now parameters/members
docs.write_title(
'Parameters' if tlobject.is_function else 'Members', level=3
)
# Sort the arguments in the same way they're sorted
# on the generated code (flags go last)
args = [
a for a in tlobject.sorted_args()
if not a.flag_indicator and not a.generic_definition
]
if args:
# Writing parameters
docs.begin_table(column_count=3)
for arg in args:
# Name row
docs.add_row(arg.name,
bold=True)
# Type row
if arg.is_generic:
docs.add_row('!' + arg.type, align='center')
else:
docs.add_row(
arg.type, align='center', link=
get_path_for_type(arg.type, relative_to=filename)
)
# Add a description for this argument
docs.add_row(get_description(arg))
docs.end_table()
else:
if tlobject.is_function:
docs.write_text('This request takes no input parameters.')
else:
docs.write_text('This type has no members.')
# TODO Bit hacky, make everything like this? (prepending '../')
depth = '../' * (2 if tlobject.namespace else 1)
docs.add_script(src='prependPath = "{}";'.format(depth))
docs.add_script(relative_src=paths['search.js'])
docs.end_body()
# Find all the available types (which are not the same as the constructors)
# Each type has a list of constructors associated to it, hence is a map
print('Generating types documentation...')
for tltype, constructors in tltypes.items():
filename = get_path_for_type(tltype)
out_dir = os.path.dirname(filename)
if out_dir:
os.makedirs(out_dir, exist_ok=True)
# Since we don't have access to the full TLObject, split the type
if '.' in tltype:
namespace, name = tltype.split('.')
else:
namespace, name = None, tltype
# Determine the relative paths for this file
paths = get_relative_paths(original_paths, relative_to=out_dir)
with DocsWriter(filename, type_to_path_function=get_path_for_type) \
as docs:
docs.write_head(
title=get_class_name(name),
relative_css_path=paths['css'])
docs.set_menu_separator(paths['arrow'])
build_menu(docs, filename, relative_main_index=paths['index_all'])
# Main file title
docs.write_title(get_class_name(name))
# List available constructors for this type
docs.write_title('Available constructors', level=3)
if not constructors:
docs.write_text('This type has no constructors available.')
elif len(constructors) == 1:
docs.write_text('This type has one constructor available.')
else:
docs.write_text('This type has %d constructors available.' %
len(constructors))
docs.begin_table(2)
for constructor in constructors:
# Constructor full name
link = get_create_path_for(constructor)
link = get_relative_path(link, relative_to=filename)
docs.add_row(get_class_name(constructor), link=link)
docs.end_table()
# List all the methods which return this type
docs.write_title('Methods returning this type', level=3)
functions = tlfunctions.get(tltype, [])
if not functions:
docs.write_text('No method returns this type.')
elif len(functions) == 1:
docs.write_text('Only the following method returns this type.')
else:
docs.write_text(
'The following %d methods return this type as a result.' %
len(functions)
)
docs.begin_table(2)
for func in functions:
link = get_create_path_for(func)
link = get_relative_path(link, relative_to=filename)
docs.add_row(get_class_name(func), link=link)
docs.end_table()
# List all the methods which take this type as input
docs.write_title('Methods accepting this type as input', level=3)
other_methods = sorted(
(t for t in tlobjects
if any(tltype == a.type for a in t.args) and t.is_function),
key=lambda t: t.name
)
if not other_methods:
docs.write_text(
'No methods accept this type as an input parameter.')
elif len(other_methods) == 1:
docs.write_text(
'Only this method has a parameter with this type.')
else:
docs.write_text(
'The following %d methods accept this type as an input '
'parameter.' % len(other_methods))
docs.begin_table(2)
for ot in other_methods:
link = get_create_path_for(ot)
link = get_relative_path(link, relative_to=filename)
docs.add_row(get_class_name(ot), link=link)
docs.end_table()
# List every other type which has this type as a member
docs.write_title('Other types containing this type', level=3)
other_types = sorted(
(t for t in tlobjects
if any(tltype == a.type for a in t.args)
and not t.is_function
), key=lambda t: t.name
)
if not other_types:
docs.write_text(
'No other types have a member of this type.')
elif len(other_types) == 1:
docs.write_text(
'You can find this type as a member of this other type.')
else:
docs.write_text(
'You can find this type as a member of any of '
'the following %d types.' % len(other_types))
docs.begin_table(2)
for ot in other_types:
link = get_create_path_for(ot)
link = get_relative_path(link, relative_to=filename)
docs.add_row(get_class_name(ot), link=link)
docs.end_table()
docs.end_body()
# After everything's been written, generate an index.html per folder.
# This will be done automatically and not taking into account any extra
# information that we have available, simply a file listing all the others
# accessible by clicking on their title
print('Generating indices...')
for folder in ['types', 'methods', 'constructors']:
generate_index(folder, original_paths)
# Write the final core index, the main index for the rest of files
layer = TLParser.find_layer(scheme_file)
types = set()
methods = []
constructors = []
for tlobject in tlobjects:
if tlobject.is_function:
methods.append(tlobject)
else:
constructors.append(tlobject)
if not is_core_type(tlobject.result):
if re.search('^vector<', tlobject.result, re.IGNORECASE):
types.add(tlobject.result.split('<')[1].strip('>'))
else:
types.add(tlobject.result)
types = sorted(types)
methods = sorted(methods, key=lambda m: m.name)
constructors = sorted(constructors, key=lambda c: c.name)
def fmt(xs):
ys = {x: get_class_name(x) for x in xs} # cache TLObject: display
zs = {} # create a dict to hold those which have duplicated keys
for y in ys.values():
zs[y] = y in zs
return ', '.join(
'"{}.{}"'.format(x.namespace, ys[x])
if zs[ys[x]] and getattr(x, 'namespace', None)
else '"{}"'.format(ys[x]) for x in xs
)
request_names = fmt(methods)
type_names = fmt(types)
constructor_names = fmt(constructors)
def fmt(xs, formatter):
return ', '.join('"{}"'.format(formatter(x)) for x in xs)
request_urls = fmt(methods, get_create_path_for)
type_urls = fmt(types, get_path_for_type)
constructor_urls = fmt(constructors, get_create_path_for)
shutil.copy('../res/404.html', original_paths['404'])
copy_replace('../res/core.html', original_paths['index_all'], {
'{type_count}': len(types),
'{method_count}': len(methods),
'{constructor_count}': len(tlobjects) - len(methods),
'{layer}': layer,
})
os.makedirs(os.path.abspath(os.path.join(
original_paths['search.js'], os.path.pardir
)), exist_ok=True)
copy_replace('../res/js/search.js', original_paths['search.js'], {
'{request_names}': request_names,
'{type_names}': type_names,
'{constructor_names}': constructor_names,
'{request_urls}': request_urls,
'{type_urls}': type_urls,
'{constructor_urls}': constructor_urls
})
# Everything done
print('Documentation generated.')
def copy_resources():
for d in ('css', 'img'):
os.makedirs(d, exist_ok=True)
shutil.copy('../res/img/arrow.svg', 'img')
shutil.copy('../res/css/docs.css', 'css')
if __name__ == '__main__':
os.makedirs('generated', exist_ok=True)
os.chdir('generated')
try:
generate_documentation('../../telethon_generator/scheme.tl')
copy_resources()
finally:
os.chdir(os.pardir)