36 lines
868 B
Python
36 lines
868 B
Python
"""Utility to use the Uglify JS Compiler CLI from Python."""
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import logging
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import subprocess
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def check_available():
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""" Returns whether the uglify-js tool is available. """
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subprocess.check_output(['which', 'uglifyjs'])
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def compile(source_paths, flags=None):
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"""
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Prepares command-line call to uglify-js compiler.
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Args:
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source_paths: Source paths to build, in order.
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flags: A list of additional flags to pass on to uglify-js.
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Returns:
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The compiled source, as a string, or None if compilation failed.
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"""
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args = ['uglifyjs']
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args.extend(source_paths)
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args.extend(['-c', '-m'])
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if flags:
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args += flags
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logging.info('Compiling with the following command: %s', ' '.join(args))
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try:
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return subprocess.check_output(args)
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except subprocess.CalledProcessError:
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return
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