memoire

Allow user to select repository file
Parent fa19e88
John Smith

John Smith commited on 2021-355 22:15:38
Showing 1 changed files, with 12 additions and 5 deletions. 

Whilst a hardcoded default remains, the second command-line argument
is now read as a repository path.
Errors in loading decks are now handled with error messages.
main.lua
View file @ ee7e353
... ... 
@@ -39,11 +39,10 @@ else
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     action = "h"
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 end
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---[[
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-    repository file is hardcoded for now;
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-    TODO: should be controllable by user in the future
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-]]
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 local deckfname = "example.rec"
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+if arg[2] then
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+    deckfname = arg[2]
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+end
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 --[[
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     do requested action
... ... 
@@ -51,6 +50,7 @@ local deckfname = "example.rec"
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 -- Add card(s)
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 if action == "a" then
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     local deck = loader.load(deckfname)
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+    if deck then
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         io.write("Reading prompts -- press Ctrl-D to stop\n")
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         local rt = io.read("a")
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         local cardctr = 0
... ... 
@@ -73,15 +73,19 @@ if action == "a" then
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         if cardctr > 0 then
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             loader.save(deckfname, deck)
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         end
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+    else
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+        io.write("Failed to load deck\n")
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+    end
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 -- Help
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 elseif action == "h" then
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     io.write(string.format(
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-        "Usage: %s ACTION\n\nACTION may be one of\n    (a)dd card\n    (h)elp\n    (r)eview session\n    (s)tatistics\n",
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+        "Usage: %s ACTION [REPO]\n\nACTION may be one of\n    (a)dd card\n    (h)elp\n    (r)eview session\n    (s)tatistics\n",
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         arg[0]
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     ))
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 -- Review session
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 elseif action == "r" then
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     local deck = loader.load(deckfname)
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+    if deck then
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         local cardcount = 0
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         local start = os.time()
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         -- review each card that needs it
... ... 
@@ -120,6 +124,9 @@ elseif action == "r" then
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             ))
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             loader.save(deckfname, deck)
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         end
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+    else
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+        io.write("Failed to load deck\n")
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+    end
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 -- Statistics
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 elseif action == "s" then
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     -- TODO
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