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annotate piecrust/publishing/shell.py @ 1143:1c324407bd1f

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internal: Cleanup in the paginator's code.
author Ludovic Chabant <ludovic@chabant.com>
date Tue, 05 Jun 2018 21:59:41 -0700
parents 8ca228956cc6
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 import os.path
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2 import shlex
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3 import logging
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4 import threading
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5 import subprocess
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6 from piecrust.publishing.base import Publisher
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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 ShellCommandPublisherBase(Publisher):
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13 def __init__(self, app, target, config):
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14 super(ShellCommandPublisherBase, self).__init__(app, target, config)
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15 self.expand_user_args = True
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16
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17 def run(self, ctx):
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18 args = self._getCommandArgs(ctx)
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19 if self.expand_user_args:
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20 args = [os.path.expanduser(i) for i in args]
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21
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22 if ctx.preview:
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23 preview_args = ' '.join([shlex.quote(i) for i in args])
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24 logger.info(
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25 "Would run shell command: %s" % preview_args)
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26 return True
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27
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28 logger.debug(
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29 "Running shell command: %s" % args)
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31 proc = subprocess.Popen(
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32 args, cwd=self.app.root_dir, bufsize=0,
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33 stdout=subprocess.PIPE,
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34 stderr=subprocess.STDOUT)
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35
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36 logger.debug("Running publishing monitor for PID %d" % proc.pid)
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37 thread = _PublishThread(proc)
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38 thread.start()
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39 proc.wait()
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40 thread.join()
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41
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42 if proc.returncode != 0:
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43 logger.error(
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44 "Publish process returned code %d" % proc.returncode)
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45 else:
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46 logger.debug("Publish process returned successfully.")
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47
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48 return proc.returncode == 0
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49
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50 def _getCommandArgs(self, ctx):
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51 raise NotImplementedError()
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52
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53
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54 class _PublishThread(threading.Thread):
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55 def __init__(self, proc):
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56 super(_PublishThread, self).__init__(
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57 name='publish_monitor', daemon=True)
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58 self.proc = proc
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59 self.root_logger = logging.getLogger()
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60
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61 def run(self):
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62 for line in iter(self.proc.stdout.readline, b''):
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63 line_str = line.decode('utf8')
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64 logger.info(line_str.rstrip('\r\n'))
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65 for h in self.root_logger.handlers:
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66 h.flush()
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67
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68 self.proc.communicate()
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69 logger.debug("Publish monitor exiting.")
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71
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72 class ShellCommandPublisher(ShellCommandPublisherBase):
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73 PUBLISHER_NAME = 'shell'
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74
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75 def _getCommandArgs(self, ctx):
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76 target_cmd = self.config.get('command')
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77 if not target_cmd:
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78 raise Exception("No command specified for publish target: %s" %
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79 self.target)
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80 args = shlex.split(target_cmd)
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81 return args
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82