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Generate parser errors when basic argument validation fail.

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This commit is contained in:
Chris Berkhout 2021-08-02 16:41:34 +02:00
parent 338acf2970
commit 784770d9f3
1 changed files with 6 additions and 8 deletions
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14
src/pricehist/cli.py
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@ -43,10 +43,14 @@ def cli(argv=sys.argv, output_file=sys.stdout):
source = sources.by_id[args.source]
output = outputs.by_type[args.output]
if args.end < args.start:
logging.critical(
parser.error(
f"The end date '{args.end}' preceeds the start date '{args.start}'!"
)
sys.exit(1)
if args.type not in source.types():
parser.error(
f"The requested price type '{args.type}' is not "
f"recognized by the {source.id()} source!"
)
series = Series(
base=source.normalizesymbol(args.pair[0]),
quote=source.normalizesymbol(args.pair[1]),
@ -54,12 +58,6 @@ def cli(argv=sys.argv, output_file=sys.stdout):
start=args.start,
end=args.end,
)
if series.type not in source.types():
logging.critical(
f"The requested price type '{series.type}' is not "
f"recognized by the {source.id()} source!"
)
sys.exit(1)
fmt = Format.fromargs(args)
result = fetch(series, source, output, args.invert, args.quantize, fmt)
print(result, end="", file=output_file)