Flag to continue runs.

src/io.jl

@@ -15,6 +15,11 @@ Stores as global variables 'parsed_args' (info from the command line) and 'param
 function read_input()
     global parsed_args = parse_commandline()
     global params = TOML.parsefile(parsed_args["i"])
+
+    if parsed_args["R"] && (isfile("./output/"*params["Run"]["name"]*".log") || isfile("./output/"*params["Run"]["name"]*".bdio"))
+        error("Output file already exists with this run name. Use flag -R to continue the run.")
+    end
+
     return nothing
 end
 
@@ -40,6 +45,10 @@ function parse_commandline()
         help = "GPU for the job. Default 0"
         arg_type = Int
         default = 0
+
+        "-R"
+        help = "Continue run. Needed to edit output files already created."
+        action = :store_false
     end
 
     return parse_args(s)