Mercurial > piecrust2

annotate foodtruck/sites.py @ 601:effbc78b5528

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admin: Better error reporting, general clean-up.
author Ludovic Chabant <ludovic@chabant.com>
date Sun, 24 Jan 2016 10:42:33 -0800
parents 3cec8634209a
children c6bc0ef03f82
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1 import os
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2 import os.path
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3 import copy
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4 import shlex
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5 import logging
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6 import threading
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7 import subprocess
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8 from piecrust.app import PieCrust
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9 from piecrust.configuration import merge_dicts
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10
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11
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12 logger = logging.getLogger(__name__)
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13
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14
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15 class UnauthorizedSiteAccessError(Exception):
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16 pass
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17
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18
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19 class InvalidSiteError(Exception):
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20 pass
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21
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22
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23 class Site(object):
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24 def __init__(self, name, root_dir, config):
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25 self.name = name
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26 self.root_dir = root_dir
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27 self.config = config
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28 self._piecrust_app = None
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29 self._scm = None
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30 self._bake_thread = None
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31 logger.debug("Creating site object for %s" % self.name)
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32
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33 @property
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34 def piecrust_app(self):
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35 if self._piecrust_app is None:
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36 s = PieCrust(self.root_dir)
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37 s.config.set('site/root', '/site/%s/' % self.name)
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38 self._piecrust_app = s
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39 return self._piecrust_app
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40
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41 @property
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42 def scm(self):
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43 if self._scm is None:
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44 cfg = None
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45 scm_cfg = self.config.get('sites/%s/scm' % self.name)
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46 global_scm_cfg = self.config.get('scm')
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47 if scm_cfg:
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48 if global_scm_cfg:
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49 cfg = copy.deepcopy(global_scm_cfg)
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50 merge_dicts(cfg, scm_cfg)
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51 else:
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52 cfg = copy.deepcopy(scm_cfg)
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53 elif global_scm_cfg:
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54 cfg = copy.deepcopy(global_scm_cfg)
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55
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56 if not cfg or 'type' not in cfg:
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57 raise Exception("No SCM available for site: %s" % self.name)
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58
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59 if cfg['type'] == 'hg':
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60 from .scm.mercurial import MercurialSourceControl
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61 self._scm = MercurialSourceControl(self.root_dir, cfg)
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62 else:
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63 raise NotImplementedError()
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64
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65 return self._scm
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66
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67 @property
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68 def is_bake_running(self):
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69 return self._bake_thread is not None and self._bake_thread.is_alive()
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70
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71 @property
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72 def bake_thread(self):
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73 return self._bake_thread
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74
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75 def bake(self):
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76 bake_cmd = self.config.get('triggers/bake')
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77 bake_args = shlex.split(bake_cmd)
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78
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79 logger.debug("Running bake: %s" % bake_args)
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80 proc = subprocess.Popen(bake_args, cwd=self.root_dir,
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81 stdout=subprocess.PIPE,
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82 stderr=subprocess.PIPE)
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83
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84 pid_file_path = os.path.join(self.root_dir, 'foodtruck_bake.pid')
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85 with open(pid_file_path, 'w') as fp:
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86 fp.write(str(proc.pid))
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87
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88 logger.debug("Running bake monitor for PID %d" % proc.pid)
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89 self._bake_thread = _BakeThread(self.name, self.root_dir, proc,
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90 self._onBakeEnd)
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91 self._bake_thread.start()
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92
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93 def _onBakeEnd(self):
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94 os.unlink(os.path.join(self.root_dir, 'foodtruck_bake.pid'))
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95 self._bake_thread = None
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96
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97
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98 class _BakeThread(threading.Thread):
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99 def __init__(self, sitename, siteroot, proc, callback):
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100 super(_BakeThread, self).__init__(
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101 name='%s_bake' % sitename, daemon=True)
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102 self.sitename = sitename
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103 self.siteroot = siteroot
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104 self.proc = proc
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105 self.callback = callback
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106
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107 log_file_path = os.path.join(self.siteroot, 'foodtruck_bake.log')
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108 self.log_fp = open(log_file_path, 'w', encoding='utf8')
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109
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110 def run(self):
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111 for line in self.proc.stdout:
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112 self.log_fp.write(line.decode('utf8'))
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113 for line in self.proc.stderr:
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114 self.log_fp.write(line.decode('utf8'))
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115 self.proc.communicate()
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116 if self.proc.returncode != 0:
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117 self.log_fp.write("Error, bake process returned code %d" %
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118 self.proc.returncode)
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119 self.log_fp.close()
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120
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121 logger.debug("Bake ended for %s." % self.sitename)
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122 self.callback()
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123
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124
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125 class FoodTruckSites():
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126 def __init__(self, config, current_site):
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127 self._sites = {}
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128 self._site_dirs = {}
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129 self.config = config
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130 self.current_site = current_site
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131 if current_site is None:
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132 raise Exception("No current site was given.")
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133
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134 def get_root_dir(self, name=None):
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135 name = name or self.current_site
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136 s = self._site_dirs.get(name)
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137 if s:
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138 return s
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139
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140 scfg = self.config.get('sites/%s' % name)
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141 if scfg is None:
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142 raise InvalidSiteError("No such site: %s" % name)
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143 root_dir = scfg.get('path')
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144 if root_dir is None:
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145 raise InvalidSiteError("Site '%s' has no path defined." % name)
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146 if not os.path.isdir(root_dir):
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147 raise InvalidSiteError("Site '%s' has an invalid path." % name)
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148 self._site_dirs[name] = root_dir
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149 return root_dir
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150
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151 def get(self, name=None):
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152 name = name or self.current_site
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153 s = self._sites.get(name)
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154 if s:
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155 return s
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156
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157 root_dir = self.get_root_dir(name)
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158 s = Site(name, root_dir, self.config)
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159 self._sites[name] = s
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160 return s
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161