172 lines
4.2 KiB
Python
172 lines
4.2 KiB
Python
# -*- coding: utf-8 -*-
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"""
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wakatime.stats
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~~~~~~~~~~~~~~
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Stats about files
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:copyright: (c) 2013 Alan Hamlett.
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:license: BSD, see LICENSE for more details.
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"""
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import logging
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import os
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import sys
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from .compat import u, open
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from .languages import DependencyParser
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if sys.version_info[0] == 2:
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sys.path.insert(0, os.path.join(os.path.dirname(os.path.abspath(__file__)), 'packages', 'pygments_py2'))
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else:
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sys.path.insert(0, os.path.join(os.path.dirname(os.path.abspath(__file__)), 'packages', 'pygments_py3'))
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from pygments.lexers import guess_lexer, guess_lexer_for_filename
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log = logging.getLogger('WakaTime')
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# force file name extensions to be recognized as a certain language
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EXTENSIONS = {
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'j2': 'HTML',
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'markdown': 'Markdown',
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'md': 'Markdown',
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'mdown': 'Markdown',
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'twig': 'Twig',
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}
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TRANSLATIONS = {
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'CSS+Genshi Text': 'CSS',
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'CSS+Lasso': 'CSS',
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'HTML+Django/Jinja': 'HTML',
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'HTML+Lasso': 'HTML',
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'JavaScript+Genshi Text': 'JavaScript',
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'JavaScript+Lasso': 'JavaScript',
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'Perl6': 'Perl',
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'RHTML': 'HTML',
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}
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def guess_language(file_name):
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"""Guess lexer and language for a file.
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Returns (language, lexer) tuple where language is a unicode string.
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"""
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lexer = smart_guess_lexer(file_name)
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language = None
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# guess language from file extension
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if file_name:
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language = guess_language_from_extension(file_name.rsplit('.', 1)[-1])
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# get language from lexer if we didn't have a hard-coded extension rule
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if language is None and lexer:
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language = translate_language(u(lexer.name))
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return language, lexer
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def smart_guess_lexer(file_name):
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"""Guess Pygments lexer for a file.
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Looks for a vim modeline in file contents, then compares the accuracy
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of that lexer with a second guess. The second guess looks up all lexers
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matching the file name, then runs a text analysis for the best choice.
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"""
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lexer = None
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text = get_file_contents(file_name)
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try:
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guess_1 = guess_lexer(text)
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except:
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guess_1 = None
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try:
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guess_2 = guess_lexer_for_filename(file_name, text)
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except:
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guess_2 = None
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try:
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accuracy_1 = guess_1.analyse_text(text)
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except:
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accuracy_1 = None
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try:
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accuracy_2 = guess_2.analyse_text(text)
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except:
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accuracy_2 = None
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if accuracy_1:
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lexer = guess_1
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if (accuracy_2 and
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(not accuracy_1 or accuracy_2 > accuracy_1)):
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lexer = guess_2
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return lexer
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def guess_language_from_extension(extension):
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"""Checks hard-coded extension map for a matching language.
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"""
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if extension:
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if extension in EXTENSIONS:
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return EXTENSIONS[extension]
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if extension.lower() in EXTENSIONS:
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return EXTENSIONS[extension.lower()]
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return None
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def translate_language(language):
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"""Turns Pygments lexer class name string into human-readable language.
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"""
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if language in TRANSLATIONS:
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language = TRANSLATIONS[language]
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return language
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def number_lines_in_file(file_name):
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lines = 0
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try:
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with open(file_name, 'r', encoding='utf-8') as fh:
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for line in fh:
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lines += 1
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except:
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return None
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return lines
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def get_file_stats(file_name, notfile=False, lineno=None, cursorpos=None):
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if notfile:
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stats = {
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'language': None,
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'dependencies': [],
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'lines': None,
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'lineno': lineno,
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'cursorpos': cursorpos,
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}
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else:
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language, lexer = guess_language(file_name)
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parser = DependencyParser(file_name, lexer)
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dependencies = parser.parse()
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stats = {
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'language': language,
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'dependencies': dependencies,
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'lines': number_lines_in_file(file_name),
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'lineno': lineno,
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'cursorpos': cursorpos,
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}
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return stats
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def get_file_contents(file_name):
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"""Returns the first 512000 bytes of the file's contents.
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"""
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text = None
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try:
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with open(file_name, 'r', encoding='utf-8') as fh:
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text = fh.read(512000)
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except:
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pass
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return text
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