Check if standard input is a terminal
John Smith commited on 2022-133 23:50:55
Showing 1 changed files, with 18 additions and 1 deletions.
Memoire will now check if its standard input is a terminal,
and alter some behaviour accordingly:
- the message output at the start of the add-card interface
is more suitable for an automated process when not reading
from a terminal
- the review process will be cancelled when not reading from a terminal
- main.lua a8fe8ca..dae2eb7
| ... | ... |
@@ -109,6 +109,14 @@ local function disptime(ts) |
| 109 | 109 |
end |
| 110 | 110 |
end |
| 111 | 111 |
|
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+--[[ |
|
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+ check if standard input is a terminal |
|
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+]] |
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+local function isatty() |
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+ local succ = os.execute("tty >/dev/null")
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+ return succ |
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+end |
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+ |
|
| 112 | 120 |
--[[ |
| 113 | 121 |
check action based on first command-line argument; |
| 114 | 122 |
if nothing valid given, default to help |
| ... | ... |
@@ -186,7 +194,11 @@ math.randomseed(os.time()) |
| 186 | 194 |
if action == "a" then |
| 187 | 195 |
local deck = loader.load(deckfname) |
| 188 | 196 |
if deck then |
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+ if isatty() then |
|
| 189 | 198 |
io.write("Reading prompts -- press Ctrl-D to stop\n")
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+ else |
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+ io.write("Reading prompts ...\n")
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+ end |
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local rt = io.read("a")
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local cardctr = 0 |
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local prctr = 0 |
| ... | ... |
@@ -219,7 +231,12 @@ elseif action == "h" then |
| 219 | 231 |
)) |
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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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+ local deck |
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+ if isatty() then |
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+ deck = loader.load(deckfname) |
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+ else |
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+ io.write("Review should be done in the terminal\n")
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+ end |
|
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if deck then |
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-- collect list of index-pairs for prompts to be reviewed this session |
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local ctrt = review.list(deck, function(pr) |
| 226 | 243 |