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annotate piecrust/processing/requirejs.py @ 182:a54d3c0b5f4a

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tests: Patch `os.path.exists` and improve patching for `open`. You can specify additional modules for which to patch `open`. Also, it was incorrectly updating the opened file, even when it was opened for read only. Now it only updates the contents if the file was opened for write, and supports appending to the end. Last, it supports opening text files in binary mode.
author Ludovic Chabant <ludovic@chabant.com>
date Sun, 04 Jan 2015 14:55:41 -0800
parents e5f048799d61
children 4850f8c21b6e
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1 import os
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2 import os.path
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3 import json
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4 import hashlib
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5 import logging
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6 import platform
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7 import subprocess
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8 from piecrust.processing.base import Processor, PRIORITY_FIRST
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9 from piecrust.processing.tree import FORCE_BUILD
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12 logger = logging.getLogger(__name__)
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15 class RequireJSProcessor(Processor):
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16 PROCESSOR_NAME = 'requirejs'
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17
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18 def __init__(self):
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19 super(RequireJSProcessor, self).__init__()
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20 self.is_bypassing_structured_processing = True
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21 self._conf = None
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23 def initialize(self, app):
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24 super(RequireJSProcessor, self).initialize(app)
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25
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26 self._conf = app.config.get('requirejs')
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27 if self._conf is None:
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28 return
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29
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30 if 'build_path' not in self._conf:
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31 raise Exception("You need to specify `requirejs/build_path` "
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32 "for RequireJS.")
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33 self._conf.setdefault('bin', 'r.js')
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34 self._conf.setdefault('out_path', self._conf['build_path'])
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36 def onPipelineStart(self, pipeline):
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37 super(RequireJSProcessor, self).onPipelineStart(pipeline)
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38
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39 if self._conf is None:
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40 return
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41
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42 logger.debug("Adding Javascript suppressor to build pipeline.")
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43 skip = _JavascriptSkipProcessor(self._conf['build_path'])
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44 pipeline.processors.append(skip)
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45
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46 def matches(self, path):
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47 if self._conf is None:
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48 return False
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49 return path == self._conf['build_path']
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50
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51 def getDependencies(self, path):
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52 return FORCE_BUILD
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54 def process(self, path, out_dir):
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55 args = [self._conf['bin'], '-o', path]
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56 shell = (platform.system() == 'Windows')
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57 cwd = self.app.root_dir
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58 logger.debug("Running RequireJS: %s" % ' '.join(args))
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59 try:
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60 retcode = subprocess.call(args, shell=shell, cwd=cwd)
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61 except FileNotFoundError as ex:
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62 logger.error("Tried running RequireJS processor "
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63 "with command: %s" % args)
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64 raise Exception("Error running RequireJS. "
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65 "Did you install it?") from ex
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66 if retcode != 0:
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67 raise Exception("Error occured in RequireJS compiler. "
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68 "Please check log messages above for "
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69 "more information.")
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70 return True
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73 class _JavascriptSkipProcessor(Processor):
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74 PROCESSOR_NAME = 'requirejs_javascript_skip'
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75
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76 def __init__(self, except_path=None):
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77 super(_JavascriptSkipProcessor, self).__init__()
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78 self.priority = PRIORITY_FIRST
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79 self.is_bypassing_structured_processing = True
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80 self._except_path = except_path
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81
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82 def matches(self, path):
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83 _, ext = os.path.splitext(path)
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84 return ext == '.js' and path != self._except_path
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85
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86 def process(self, in_path, out_path):
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87 return False
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