Thu, 23 Aug 2018 12:32:26 +0200
SVG gcode generator: interpret color style if present
#!/usr/bin/env python # Author: Chris Eberle <eberle1080@gmail.com> # Watch for any changes in a module or package, and reload it automatically import pyinotify import imp import os class ModuleWatcher(pyinotify.ProcessEvent): """ Automatically reload any modules or packages as they change """ def __init__(self): "El constructor" self.wm = pyinotify.WatchManager() self.notifier = None self.mod_map = {} def _watch_file(self, file_name, module): "Add a watch for a specific file, and map said file to a module name" file_name = os.path.realpath(file_name) self.mod_map[file_name] = module self.wm.add_watch(file_name, pyinotify.EventsCodes.IN_MODIFY) print 'Watching', file_name def watch_module(self, name): "Load a module, determine which files it uses, and watch them" if imp.is_builtin(name) != 0: # Pretty pointless to watch built-in modules return (fd, pathname, description) = imp.find_module(name) try: mod = imp.load_module(name, fd, pathname, description) if fd: self._watch_file(fd.name, name) else: for root, dirs, files in os.walk(pathname): for filename in files: fpath = os.path.join(root, filename) if fpath.endswith('.py'): self._watch_file(fpath, name) finally: if fd: fd.close() def start_watching(self): "Start the pyinotify watch thread" if self.notifier is None: self.notifier = pyinotify.ThreadedNotifier(self.wm, self) self.notifier.start() def stop_watching(self): "Stop the pyinotify watch thread" if self.notifier is not None: self.notifier.stop() def process_IN_MODIFY(self, event): "A file of interest has changed" # Is it a file I know about? if event.path not in self.mod_map: return # Find out which module is using that file modname = self.mod_map[event.path] # Reload the module (fd, pathname, description) = imp.find_module(modname) try: print "Reloading changed file: %s" % pathname imp.load_module(modname, fd, pathname, description) finally: if fd: fd.close() #print 'Reload', modname if __name__ == '__main__': # Test everything import sys mw = ModuleWatcher() mw.watch_module('module1') mw.watch_module('module2') mw.start_watching() try: raw_input('Press ENTER to exit') finally: mw.stop_watching() sys.exit(0)