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parse-options: move unsigned long option parsing out of pack-objects.c

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The unsigned long option parsing (including 'k'/'m'/'g' suffix
parsing) is more widely applicable.  Add support for OPT_MAGNITUDE
to parse-options.h and change pack-objects.c use this support.

The error behavior on parse errors follows that of OPT_INTEGER.  The
name of the option that failed to parse is reported with a brief
message describing the expect format for the option argument and
then the full usage message for the command invoked.

This differs from the previous behavior for OPT_ULONG used in
pack-objects for --max-pack-size and --window-memory which used to
display the value supplied in the error message and did not display
the full usage message.

Signed-off-by: Charles Bailey <cbailey32@bloomberg.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Charles Bailey
2015-06-21 19:25:44 +01:00
committed by Junio C Hamano
parent 81a48cc080
commit 2a514ed805
6 changed files with 73 additions and 26 deletions
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3
parse-options.h
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@ -16,6 +16,7 @@ enum parse_opt_type {
/* options with arguments (usually) */
OPTION_STRING,
OPTION_INTEGER,
OPTION_MAGNITUDE,
OPTION_CALLBACK,
OPTION_LOWLEVEL_CALLBACK,
OPTION_FILENAME
@ -129,6 +130,8 @@ struct option {
#define OPT_CMDMODE(s, l, v, h, i) { OPTION_CMDMODE, (s), (l), (v), NULL, \
(h), PARSE_OPT_NOARG|PARSE_OPT_NONEG, NULL, (i) }
#define OPT_INTEGER(s, l, v, h) { OPTION_INTEGER, (s), (l), (v), N_("n"), (h) }
#define OPT_MAGNITUDE(s, l, v, h) { OPTION_MAGNITUDE, (s), (l), (v), \
N_("n"), (h), PARSE_OPT_NONEG }
#define OPT_STRING(s, l, v, a, h) { OPTION_STRING, (s), (l), (v), (a), (h) }
#define OPT_STRING_LIST(s, l, v, a, h) \
{ OPTION_CALLBACK, (s), (l), (v), (a), \