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# -*- coding: utf-8 -*- |
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# ----------------------------------------------------------------------------- |
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# Copyright (c) 2015 Yann Lanthony |
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# Copyright (c) 2017-2018 Spyder Project Contributors |
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# |
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# Licensed under the terms of the MIT License |
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# (See LICENSE.txt for details) |
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# ----------------------------------------------------------------------------- |
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"""qtsass - Compile SCSS files to valid Qt stylesheets.""" |
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# Standard library imports |
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from __future__ import absolute_import, print_function |
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import logging |
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import os |
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# Third party imports |
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import sass |
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from watchdog.observers import Observer |
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# Local imports |
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from qtsass.conformers import scss_conform, qt_conform |
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from qtsass.functions import qlineargradient, rgba |
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from qtsass.importers import qss_importer |
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from qtsass.events import SourceEventHandler |
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logging.basicConfig(level=logging.DEBUG) |
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_log = logging.getLogger(__name__) |
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def compile(input_file): |
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"""Compile QtSASS to CSS.""" |
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_log.debug('Compiling {}...'.format(input_file)) |
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with open(input_file, 'r') as f: |
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input_str = f.read() |
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try: |
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importer_root = os.path.dirname(os.path.abspath(input_file)) |
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return qt_conform( |
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sass.compile( |
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string=scss_conform(input_str), |
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source_comments=False, |
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custom_functions={ |
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'qlineargradient': qlineargradient, |
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'rgba': rgba |
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}, |
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importers=[(0, qss_importer(importer_root))] |
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) |
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) |
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except sass.CompileError as e: |
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_log.error('Failed to compile {}:\n{}'.format(input_file, e)) |
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return "" |
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def compile_filename(input_file, dest_file): |
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"""Compile QtSASS to CSS and save.""" |
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css = compile(input_file) |
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with open(dest_file, 'w') as css_file: |
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css_file.write(css) |
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_log.info('Created CSS file {}'.format(dest_file)) |
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def compile_dirname(input_dir, output_dir): |
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"""Compiles QtSASS files in a directory including subdirectories.""" |
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def is_valid(file): |
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return not file.startswith('_') and file.endswith('.scss') |
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for root, subdirs, files in os.walk(input_dir): |
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relative_root = os.path.relpath(root, input_dir) |
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output_root = os.path.join(output_dir, relative_root) |
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for file in [f for f in files if is_valid(f)]: |
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scss_path = os.path.join(root, file) |
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css_file = os.path.splitext(file)[0] + '.css' |
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css_path = os.path.join(output_root, css_file) |
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if not os.path.isdir(output_root): |
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os.makedirs(output_root) |
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compile_filename(scss_path, css_path) |
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def watch(source, destination, compiler=None, recursive=True): |
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""" |
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Watches a source file or directory, compiling QtSass files when modified. |
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The compiler function defaults to compile_filename when source is a file |
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and compile_dirname when source is a directory. |
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:param source: Path to source QtSass file or directory. |
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:param destination: Path to output css file or directory. |
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:param compiler: Compile function (optional) |
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:param recursive: If True, watch subdirectories (default: True). |
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:returns: watchdog.Observer |
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""" |
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if os.path.isfile(source): |
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watch_dir = os.path.dirname(source) |
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compiler = compiler or compile_filename |
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else: |
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watch_dir = source |
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compiler = compiler or compile_dirname |
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event_handler = SourceEventHandler(source, destination, compiler) |
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observer = Observer() |
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observer.schedule(event_handler, watch_dir, recursive=recursive) |
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return observer |
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spyder-ide /
qtsass
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