formatted and removed 'optional code'

script.py

@@ -5,15 +5,15 @@ import time
 
 
 config = {
-    'dirs':{
-        'from': os.getenv('IWATCH_FROM', '/in'),
-        'to': os.getenv('IWATCH_TO', '/out'),
+    "dirs": {
+        "from": os.getenv("IWATCH_FROM", "/in"),
+        "to": os.getenv("IWATCH_TO", "/out"),
     },
-    'action': 'move',
-    'timeout': int(os.getenv('IWATCH_TIMEOUT', 30)),
+    "timeout": int(os.getenv("IWATCH_TIMEOUT", 30)),
 }
 
-loglines = ['']
+loglines = [""]
+
 
 def log(line):
     if line == loglines[-1]:
@@ -21,66 +21,68 @@ def log(line):
     print(line)
     loglines[-1] = line
 
+
 def _main():
-    i = inotify.adapters.InotifyTree(config['dirs']['from'])
+    i = inotify.adapters.InotifyTree(config["dirs"]["from"])
 
     files = {}
     lastcount = 0
 
-    log('Looking for existing files in in')
-    for dirpath, _, filenames in os.walk(config['dirs']['from']):
+    log(f'Looking for existing files in {config["dirs"]["from"]}')
+    for dirpath, _, filenames in os.walk(config["dirs"]["from"]):
         for f in filenames:
-            log('found {}'.format(f))
-            files[dirpath + f] = {
-                'path': dirpath,
-                'filename': f,
-                'time': time.time()
-            }
+            log(f"found {f}")
+            files[dirpath + f] = {"path": dirpath, "filename": f, "time": time.time()}
 
-    log('waiting for events')
+    log("waiting for events")
     for event in i.event_gen(yield_nones=True):
         if event is None:
             completed = []
             for filename, file in files.items():
-                if file['time'] < time.time()-config['timeout']:
+                if file["time"] < time.time() - config["timeout"]:
                     completed.append(filename)
-                    fpath = os.path.join(file['path'], file['filename'])
+                    fpath = os.path.join(file["path"], file["filename"])
                     if not os.path.isfile(fpath):
                         continue
-                    if config['action'] == 'move':
-                        tpath = fpath.replace(config['dirs']['from'], config['dirs']['to'])
-                        shutil.move(fpath, tpath)
-                        log('moved {}'.format(fpath))
-                    else:
-                        log('action unknown')
+                    tpath = fpath.replace(config["dirs"]["from"], config["dirs"]["to"])
+                    shutil.move(fpath, tpath)
+                    log(f"moved {fpath}")
+
             for filename in completed:
                 del files[filename]
+
             if len(files) != lastcount:
-                log('waiting for {} files to be completed'.format(len(files)))
+                log(f"waiting for {len(files)} files to be completed")
                 lastcount = len(files)
-            continue
-        (_, type_names, path, filename) = event
-        if filename == '' or any(filter(lambda x: x in ['IN_MOVED_FROM'], type_names)):
+
             continue
 
-        fname = path + filename 
-        if 'IN_DELETE' in type_names:
-            log('removed file {}/{}'.format(path, filename))
+        (_, type_names, path, filename) = event
+        if filename == "" or any(filter(lambda x: x in ["IN_MOVED_FROM"], type_names)):
+            # Assume we moved the file ourself, so no need to take an action here
+            continue
+
+        fname = path + filename
+        if "IN_DELETE" in type_names:
+            # Ok, the file is gone, just notify and remove from watched files
+            log(f"removed file {path}/{filename}")
             if fname in files:
                 del files[fname]
+
             continue
 
-        if not any(filter(lambda x: x in ['IN_MODIFY', 'IN_CREATE'], type_names)):
+        if not any(filter(lambda x: x in ["IN_MODIFY", "IN_CREATE"], type_names)):
+            # skip all uninteresting events
             continue
 
-        if fname in files:
-            log("PATH=[{}] FILENAME=[{}] EVENT_TYPES={}".format( path, filename, type_names))
+        if fname not in files:
+            log(f"PATH=[{path}] FILENAME=[{filename}] EVENT_TYPES={type_names}")
             files[fname] = {
-                'path': path,
-                'filename': filename,
+                "path": path,
+                "filename": filename,
             }
-        files[fname]['time'] = time.time()
+        files[fname]["time"] = time.time()
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     _main()