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annotate piecrust/processing/browserify.py @ 1048:63be34ce6e65

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bake: Don't add outputs as dependencies, duh.
author Ludovic Chabant <ludovic@chabant.com>
date Fri, 26 Jan 2018 18:00:43 -0800
parents 717ac3c4ee77
children c2bfa1869f0d
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7487e2df8a56 bake: Add support for Browserify.
Ludovic Chabant <ludovic@chabant.com>
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1 import os
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2 import os.path
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3 import logging
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4 import platform
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5 import subprocess
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6 from piecrust.processing.base import Processor, PRIORITY_FIRST, FORCE_BUILD
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7
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8
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9 logger = logging.getLogger(__name__)
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10
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11
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12 class BrowserifyProcessor(Processor):
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13 PROCESSOR_NAME = 'browserify'
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14
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15 def __init__(self):
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16 super(BrowserifyProcessor, self).__init__()
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17 self.priority = PRIORITY_FIRST
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18 self.is_delegating_dependency_check = False
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19 self._conf = None
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20
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21 def initialize(self, app):
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22 super(BrowserifyProcessor, self).initialize(app)
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23
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24 self._conf = app.config.get('browserify')
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25 if self._conf is None:
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26 return
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27
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28 if self._conf is True:
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29 self._conf = {}
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30
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31 self._conf.setdefault('bin', 'browserify')
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32
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33 def matches(self, path):
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34 return self._conf is not None and os.path.splitext(path)[1] == '.js'
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35
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36 def getDependencies(self, path):
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37 return FORCE_BUILD
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38
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39 def getOutputFilenames(self, filename):
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40 return [filename]
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41
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42 def process(self, path, out_dir):
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43 out_path = os.path.join(out_dir, os.path.basename(path))
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44
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45 args = [self._conf['bin'], path, '-o', out_path]
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46 cwd = self.app.root_dir
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47 logger.debug("Running Browserify: %s" % ' '.join(args))
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48 try:
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49 retcode = subprocess.call(args, cwd=cwd)
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50 except FileNotFoundError as ex:
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51 logger.error("Tried running Browserify processor "
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52 "with command: %s" % args)
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53 raise Exception("Error running Browserify. "
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54 "Did you install it?") from ex
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55 if retcode != 0:
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56 raise Exception("Error occured in Browserify compiler. "
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57 "Please check log messages above for "
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58 "more information.")
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59 return True