[fix] newTopics should check required files

newTopics.py

@@ -0,0 +1,138 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+"""
+Updates a mastodon account based on a CSV file containing status 
+
+Status are defined using 
+ - date 
+ - time 
+ - any number of fields usable in jinja2 templates as variables whose name
+   is the column name 
+
+"""
+
+import codecs
+import csv
+from datetime import datetime, timezone
+import io
+import operator
+import os
+from os.path import isfile, isdir, dirname, join, realpath
+import sys
+
+# Templates
+import jinja2 
+
+# Toot
+from toot.console import main
+
+# Command line Arguments
+from argparse import ArgumentParser
+parser = ArgumentParser()
+parser.add_argument("-f", "--csv-file", type=str, default="status.csv", help="Which file to use for future status")
+parser.add_argument("-a", "--account", type=str, default="default", help="Which name for your bot (if multiple)")
+parser.add_argument("-p", "--lastseen-path", type=str, default="/var/cache/newTopics", help="Which path to use for storing ")
+parser.add_argument("-pt", "--template-file", type=str, default="template.jinja", help="Which template file to use ")
+args = parser.parse_args()
+
+
+def sort_csv(csv_filename):
+    """Read and return CSV data sorted by first two fields
+    """
+    data = []
+    global headers
+    with open(csv_filename, 'rb') as f:
+      for row in csv.reader(codecs.iterdecode(f, 'utf-8'), delimiter=';'):
+        if( row[0] == "Date"):
+          headers = row
+        else:
+          data.append( row  )
+    data = sorted(data, key = operator.itemgetter(0,1))
+    return data
+
+def recordUpdate():
+  """ Helper for updating lastseen 
+  """
+  handle = open(last_updated_file, 'w')
+  handle.write(str(last_updated_at.strftime('%Y-%m-%d %H:%M:%S.%f%z')))
+  handle.close()
+
+# Variables
+headers             = []
+date_now            = datetime.now(timezone.utc)              # Now()
+account             = args.account                            # The tag file lastseen path
+lastseen_path       = args.lastseen_path                         # The tag file lastseen path
+csv_file            = args.csv_file                           # The status file
+template_file       = args.template_file                           # The status file
+last_updated_at     = date_now                                # The last time we updated the status
+last_updated_file   = join(lastseen_path, "{}.lastseen".format(account))   # lastseen file 
+
+
+templateLoader = jinja2.FileSystemLoader(searchpath="./")
+templateEnv = jinja2.Environment(loader=templateLoader)
+
+
+# Exit if lastseen path doesn't exist
+if( not isdir( lastseen_path) ):
+  print( "Critical error: please create directory {}".format( lastseen_path) )
+  os._exit(2)
+
+
+
+# Check if csv file exists
+if( not isfile( csv_file ) ):
+  print("Couldn't find CSV file {}.".format(template_file))
+  os._exit(2)
+
+# Check if template exists
+if( not isfile( template_file ) ):
+  print("Couldn't find template file {}.".format(template_file))
+  os._exit(2)
+
+# Touch last seen file if not exists
+if( isfile( last_updated_file ) ):
+  wrapper = open(last_updated_file, 'r',encoding="utf-8")
+  try:
+    record = next(wrapper)
+  except IOError as e:
+    print("Couldn't open or write to file (%s)." % e)
+  last_updated_at = datetime.strptime(record.rstrip(), '%Y-%m-%d %H:%M:%S.%f%z')
+  print( last_updated_at )
+else:
+  try:
+    recordUpdate()
+  except IOError as e:
+    print("Couldn't open or write to file (%s)." % e)
+
+# Read CSV file
+statusList = sort_csv(csv_file)
+
+# Walk through records until a date is strictly superior to previous action and inferior to now
+for status in statusList: 
+  status_date = datetime.strptime("{} {}-+0000".format(status[0],status[1]), '%Y-%m-%d %H:%M:%S-%z')
+  status_date.replace(tzinfo=timezone.utc)
+
+  # Debug
+  print( "status:{} last_updated_at:{} now:{}".format(status_date, last_updated_at, date_now) )
+
+  # Status should be published
+  if( status_date > last_updated_at and status_date < date_now ):
+    template = templateEnv.get_template(template_file)
+    template_vars =  dict(zip(headers, status)) 
+    outputText = template.render( template_vars )
+
+    # Toot 
+    sim_args = [sys.argv[0],  'post' ]
+
+    if ( account ) :
+      sim_args.extend( ( '-u', account ))
+
+    sim_args.append( outputText )
+    sys.argv = sim_args
+    main()
+
+    last_updated_at = date_now
+    # recordUpdate()
+    os._exit(1)
+
+os._exit(0)