240 lines
6.3 KiB
Python
240 lines
6.3 KiB
Python
# -*- coding: utf-8 -*-
|
|
"""
|
|
wakatime.stats
|
|
~~~~~~~~~~~~~~
|
|
|
|
Stats about files
|
|
|
|
:copyright: (c) 2013 Alan Hamlett.
|
|
:license: BSD, see LICENSE for more details.
|
|
"""
|
|
|
|
import logging
|
|
import os
|
|
import sys
|
|
|
|
from .compat import u, open
|
|
from .dependencies import DependencyParser
|
|
|
|
from .packages import (
|
|
get_lexer_by_name,
|
|
guess_lexer_for_filename,
|
|
get_filetype_from_buffer,
|
|
)
|
|
from .packages.pygments.lexers import ClassNotFound
|
|
|
|
try:
|
|
from .packages import simplejson as json # pragma: nocover
|
|
except (ImportError, SyntaxError): # pragma: nocover
|
|
import json
|
|
|
|
|
|
log = logging.getLogger('WakaTime')
|
|
|
|
|
|
def guess_language(file_name):
|
|
"""Guess lexer and language for a file.
|
|
|
|
Returns (language, lexer) tuple where language is a unicode string.
|
|
"""
|
|
|
|
language = get_language_from_extension(file_name)
|
|
lexer = smart_guess_lexer(file_name)
|
|
if language is None and lexer is not None:
|
|
language = u(lexer.name)
|
|
|
|
return language, lexer
|
|
|
|
|
|
def smart_guess_lexer(file_name):
|
|
"""Guess Pygments lexer for a file.
|
|
|
|
Looks for a vim modeline in file contents, then compares the accuracy
|
|
of that lexer with a second guess. The second guess looks up all lexers
|
|
matching the file name, then runs a text analysis for the best choice.
|
|
"""
|
|
lexer = None
|
|
|
|
text = get_file_head(file_name)
|
|
|
|
lexer1, accuracy1 = guess_lexer_using_filename(file_name, text)
|
|
lexer2, accuracy2 = guess_lexer_using_modeline(text)
|
|
|
|
if lexer1:
|
|
lexer = lexer1
|
|
if (lexer2 and accuracy2 and
|
|
(not accuracy1 or accuracy2 > accuracy1)):
|
|
lexer = lexer2 # pragma: nocover
|
|
|
|
return lexer
|
|
|
|
|
|
def guess_lexer_using_filename(file_name, text):
|
|
"""Guess lexer for given text, limited to lexers for this file's extension.
|
|
|
|
Returns a tuple of (lexer, accuracy).
|
|
"""
|
|
|
|
lexer, accuracy = None, None
|
|
|
|
try:
|
|
lexer = guess_lexer_for_filename(file_name, text)
|
|
except: # pragma: nocover
|
|
pass
|
|
|
|
if lexer is not None:
|
|
try:
|
|
accuracy = lexer.analyse_text(text)
|
|
except: # pragma: nocover
|
|
pass
|
|
|
|
return lexer, accuracy
|
|
|
|
|
|
def guess_lexer_using_modeline(text):
|
|
"""Guess lexer for given text using Vim modeline.
|
|
|
|
Returns a tuple of (lexer, accuracy).
|
|
"""
|
|
|
|
lexer, accuracy = None, None
|
|
|
|
file_type = None
|
|
try:
|
|
file_type = get_filetype_from_buffer(text)
|
|
except: # pragma: nocover
|
|
pass
|
|
|
|
if file_type is not None:
|
|
try:
|
|
lexer = get_lexer_by_name(file_type)
|
|
except ClassNotFound:
|
|
pass
|
|
|
|
if lexer is not None:
|
|
try:
|
|
accuracy = lexer.analyse_text(text)
|
|
except: # pragma: nocover
|
|
pass
|
|
|
|
return lexer, accuracy
|
|
|
|
|
|
def get_language_from_extension(file_name):
|
|
"""Returns a matching language for the given file extension.
|
|
"""
|
|
|
|
filepart, extension = os.path.splitext(file_name)
|
|
|
|
if os.path.exists(u('{0}{1}').format(u(filepart), u('.c'))) or os.path.exists(u('{0}{1}').format(u(filepart), u('.C'))):
|
|
return 'C'
|
|
|
|
extension = extension.lower()
|
|
if extension == '.h':
|
|
directory = os.path.dirname(file_name)
|
|
available_files = os.listdir(directory)
|
|
available_extensions = list(zip(*map(os.path.splitext, available_files)))[1]
|
|
available_extensions = [ext.lower() for ext in available_extensions]
|
|
if '.cpp' in available_extensions:
|
|
return 'C++'
|
|
if '.c' in available_extensions:
|
|
return 'C'
|
|
|
|
return None
|
|
|
|
|
|
def number_lines_in_file(file_name):
|
|
lines = 0
|
|
try:
|
|
with open(file_name, 'r', encoding='utf-8') as fh:
|
|
for line in fh:
|
|
lines += 1
|
|
except: # pragma: nocover
|
|
try:
|
|
with open(file_name, 'r', encoding=sys.getfilesystemencoding()) as fh:
|
|
for line in fh:
|
|
lines += 1
|
|
except:
|
|
return None
|
|
return lines
|
|
|
|
|
|
def get_file_stats(file_name, entity_type='file', lineno=None, cursorpos=None,
|
|
plugin=None, alternate_language=None):
|
|
if entity_type != 'file':
|
|
stats = {
|
|
'language': None,
|
|
'dependencies': [],
|
|
'lines': None,
|
|
'lineno': lineno,
|
|
'cursorpos': cursorpos,
|
|
}
|
|
else:
|
|
language, lexer = guess_language(file_name)
|
|
parser = DependencyParser(file_name, lexer)
|
|
dependencies = parser.parse()
|
|
if language is None and alternate_language:
|
|
language = standardize_language(alternate_language, plugin)
|
|
stats = {
|
|
'language': language,
|
|
'dependencies': dependencies,
|
|
'lines': number_lines_in_file(file_name),
|
|
'lineno': lineno,
|
|
'cursorpos': cursorpos,
|
|
}
|
|
return stats
|
|
|
|
|
|
def standardize_language(language, plugin):
|
|
"""Maps a string to the equivalent Pygments language."""
|
|
|
|
# standardize language for this plugin
|
|
if plugin:
|
|
plugin = plugin.split(' ')[-1].split('/')[0].split('-')[0]
|
|
standardized = get_language_from_json(language, plugin)
|
|
if standardized is not None:
|
|
return standardized
|
|
|
|
# standardize language against default languages
|
|
standardized = get_language_from_json(language, 'default')
|
|
if standardized is not None:
|
|
return standardized
|
|
|
|
return None
|
|
|
|
|
|
def get_language_from_json(language, key):
|
|
"""Finds the given language in a json file."""
|
|
|
|
file_name = os.path.join(
|
|
os.path.dirname(__file__),
|
|
'languages',
|
|
'{0}.json').format(key.lower())
|
|
|
|
try:
|
|
with open(file_name, 'r', encoding='utf-8') as fh:
|
|
languages = json.loads(fh.read())
|
|
if language in languages.values():
|
|
return language
|
|
if languages.get(language):
|
|
return languages[language]
|
|
except:
|
|
pass
|
|
|
|
return None
|
|
|
|
|
|
def get_file_head(file_name):
|
|
"""Returns the first 512000 bytes of the file's contents."""
|
|
|
|
text = None
|
|
try:
|
|
with open(file_name, 'r', encoding='utf-8') as fh:
|
|
text = fh.read(512000)
|
|
except: # pragma: nocover
|
|
try:
|
|
with open(file_name, 'r', encoding=sys.getfilesystemencoding()) as fh:
|
|
text = fh.read(512000)
|
|
except:
|
|
log.traceback('debug')
|
|
return text
|