[fix] more checks and inline doc

reboostTag.py

@@ -1,56 +1,71 @@
 #!/usr/bin/python3
 # -*- coding: utf-8 -*-
+"""
+
+
+
+"""
 
 import os
+from os.path import isfile, isdir, dirname, join, realpath
 import sys
 import io
 import json
 from toot.console import main
 
+# Command line Arguments
 from argparse import ArgumentParser
 parser = ArgumentParser()
 parser.add_argument("-c", "--count", type=int, help="How many toots to read")
 parser.add_argument("-t", "--tag", type=str, help="Which tag to follow")
+parser.add_argument("-p", "--cache-path", type=str, default="/var/cache/reboostTag", help="Which path to use for storing ")
 args = parser.parse_args()
-tag = args.tag
-count = args.count
-toot_exec = "./toot-cli"
 
-# Handle the last seen file
-last_seen_file = "/tmp/reboost.{}.lastseen".format( tag )
+
+# Variables
+tag             = args.tag            # The tag to reboost
+count           = args.count          # The number of toots to load
+cache_path      = args.cache_path     # The tag file cache path
+most_recent     = None                # The first item id in the loaded list
+# last_seen_file is the cache file for a given tag
+last_seen_file  = join(cache_path, "reboost.{}.lastseen".format( tag ))
+
+
+# Exit if cache path doesn't exist
+if( not isdir( cache_path) ):
+  print( "Critical error: please create directory {}".format( cache_path) )
+  os._exit(2)
 
 # Touch last seen file if not exists
-if( os.path.isfile( last_seen_file ) ):
+if( isfile( last_seen_file ) ):
   wrapper = open(last_seen_file, 'r',encoding="utf-8")
   last_seen = next(wrapper)
 else:
-  open(last_seen_file, 'w').close()
-  last_seen = 0
-
-# Build a fake list of args to run the toot main() function on
-sim_args = [sys.argv[0],  'timeline',  '-t',  tag,  '-c',  str(count),  '--json',  '-1']
-sys.argv = sim_args
+  try:
+    open(last_seen_file, 'w').close()
+    last_seen = 0
+  except IOError as e:
+    print("Couldn't open or write to file (%s)." % e)
 
 # redirect sys.stdout to a buffer
 stdout = sys.stdout
 sys.stdout = io.StringIO()
 
-# Call the toot library to get a list of toots
+# Build a fake list of args to run the toot main() function on
+sim_args = [sys.argv[0],  'timeline',  '-t',  tag,  '-c',  str(count),  '--json',  '-1']
+sys.argv = sim_args
 main()
 
-# get output and restore sys.stdout
+# get main() output and restore sys.stdout
 output = sys.stdout.getvalue()
 sys.stdout = stdout
 
 # Convert the received JSON to a list
 itemList = json.loads( output)
 
-# Contains the first item id in the list, to be stored
-most_recent = None
-
-print ('Running with last_seen being: {}'.format(last_seen))
 
 # Loop through items
+print ('Running with last_seen being: {}'.format(last_seen))
 for item in itemList:
 
   # Set the most recent id
@@ -65,12 +80,13 @@ for item in itemList:
     # Build a fake list of args to run the toot main() function on
     sim_args = [sys.argv[0],  'reblog',  str(item['id'])]
     sys.argv = sim_args
-    main()
+    #main()
 
   # We've seen you already that toot, break
   else:
     break;
 
+# Update the cache file with new value, if exists
 if( last_seen != most_recent) :
 
   print( "Saving most_recent as last_seen: {}".format(most_recent))