Mercurial > piecrust2

annotate piecrust/processing/compressors.py @ 550:6f216c1ab6b1

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bake: Add a flag to know which record entries got collapsed from last run. This makes it possible to find entries for things that were actually baked during the current run, as opposed to skipped because they were "clean".
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 04 Aug 2015 21:22:30 -0700
parents 0ab712eab0fb
children f070a4fc033c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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cba781477bd0 processing: Add `concat`, `uglifyjs` and `cleancss` processors.
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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, SimpleFileProcessor
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8
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9 logger = logging.getLogger(__name__)
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11
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12 class CleanCssProcessor(Processor):
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13 PROCESSOR_NAME = 'cleancss'
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14
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15 def __init__(self):
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16 super(CleanCssProcessor, self).__init__()
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17 self._conf = None
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18
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19 def matches(self, path):
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20 return path.endswith('.css')
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21
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22 def getOutputFilenames(self, filename):
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23 self._ensureInitialized()
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24 basename, _ = os.path.splitext(filename)
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25 return ['%s%s' % (basename, self._conf['out_ext'])]
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27 def process(self, path, out_dir):
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28 self._ensureInitialized()
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29
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30 _, in_name = os.path.split(path)
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31 out_name = self.getOutputFilenames(in_name)[0]
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32 out_path = os.path.join(out_dir, out_name)
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34 args = [self._conf['bin'], '-o', out_path]
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35 args += self._conf['options']
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36 args.append(path)
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37 logger.debug("Cleaning CSS file: %s" % args)
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38
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39 # On Windows, we need to run the process in a shell environment
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40 # otherwise it looks like `PATH` isn't taken into account.
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41 shell = (platform.system() == 'Windows')
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42 try:
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43 retcode = subprocess.call(args, shell=shell)
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44 except FileNotFoundError as ex:
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45 logger.error("Tried running CleanCSS processor with command: %s" %
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46 args)
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47 raise Exception("Error running CleanCSS processor. "
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48 "Did you install it?") from ex
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49 if retcode != 0:
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50 raise Exception("Error occured in CleanCSS. Please check "
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51 "log messages above for more information.")
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52 return True
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53
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54 def _ensureInitialized(self):
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55 if self._conf is not None:
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56 return
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57
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58 self._conf = self.app.config.get('cleancss') or {}
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59 self._conf.setdefault('bin', 'cleancss')
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60 self._conf.setdefault('options', ['--skip-rebase'])
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61 self._conf.setdefault('out_ext', '.css')
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62 if len(self._conf['out_ext']) > 0 and self._conf['out_ext'][0] != '.':
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63 self._conf['out_ext'] = '.' + self._conf['out_ext']
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64 if not isinstance(self._conf['options'], list):
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65 raise Exception("The `cleancss/options` configuration setting "
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66 "must be an array of arguments.")
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68
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69 class UglifyJSProcessor(SimpleFileProcessor):
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70 PROCESSOR_NAME = 'uglifyjs'
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71
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72 def __init__(self):
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73 super(UglifyJSProcessor, self).__init__({'js': 'js'})
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74 self._conf = None
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75
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76 def _doProcess(self, in_path, out_path):
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77 self._ensureInitialized()
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78
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79 args = [self._conf['bin'], in_path, '-o', out_path]
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80 args += self._conf['options']
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81 logger.debug("Uglifying JS file: %s" % args)
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82
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83 # On Windows, we need to run the process in a shell environment
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84 # otherwise it looks like `PATH` isn't taken into account.
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85 shell = (platform.system() == 'Windows')
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86 try:
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87 retcode = subprocess.call(args, shell=shell)
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88 except FileNotFoundError as ex:
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89 logger.error("Tried running UglifyJS processor with command: %s" %
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90 args)
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91 raise Exception("Error running UglifyJS processor. "
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92 "Did you install it?") from ex
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93 if retcode != 0:
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94 raise Exception("Error occured in UglifyJS. Please check "
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95 "log messages above for more information.")
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96 return True
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97
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98 def _ensureInitialized(self):
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99 if self._conf is not None:
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100 return
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101
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102 self._conf = self.app.config.get('uglifyjs') or {}
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103 self._conf.setdefault('bin', 'uglifyjs')
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104 self._conf.setdefault('options', ['--compress'])
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105 if not isinstance(self._conf['options'], list):
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106 raise Exception("The `uglify/options` configuration setting "
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107 "must be an array of arguments.")
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108