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Diffstat (limited to 'parse-options.c')
-rw-r--r--parse-options.c57
1 files changed, 37 insertions, 20 deletions
diff --git a/parse-options.c b/parse-options.c
index 80106c06bc..47a9192060 100644
--- a/parse-options.c
+++ b/parse-options.c
@@ -5,10 +5,6 @@
#include "color.h"
#include "utf8.h"
-static int parse_options_usage(struct parse_opt_ctx_t *ctx,
- const char * const *usagestr,
- const struct option *opts, int err);
-
#define OPT_SHORT 1
#define OPT_UNSET 2
@@ -180,6 +176,23 @@ static int get_value(struct parse_opt_ctx_t *p,
return opterror(opt, "expects a numerical value", flags);
return 0;
+ case OPTION_MAGNITUDE:
+ if (unset) {
+ *(unsigned long *)opt->value = 0;
+ return 0;
+ }
+ if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
+ *(unsigned long *)opt->value = opt->defval;
+ return 0;
+ }
+ if (get_arg(p, opt, flags, &arg))
+ return -1;
+ if (!git_parse_ulong(arg, opt->value))
+ return opterror(opt,
+ "expects a non-negative integer value with an optional k/m/g suffix",
+ flags);
+ return 0;
+
default:
die("should not happen, someone must be hit on the forehead");
}
@@ -397,7 +410,7 @@ void parse_options_start(struct parse_opt_ctx_t *ctx,
const struct option *options, int flags)
{
memset(ctx, 0, sizeof(*ctx));
- ctx->argc = argc - 1;
+ ctx->argc = ctx->total = argc - 1;
ctx->argv = argv + 1;
ctx->out = argv;
ctx->prefix = prefix;
@@ -418,6 +431,7 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
const char * const usagestr[])
{
int internal_help = !(ctx->flags & PARSE_OPT_NO_INTERNAL_HELP);
+ int err = 0;
/* we must reset ->opt, unknown short option leave it dangling */
ctx->opt = NULL;
@@ -434,27 +448,32 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
continue;
}
+ /* lone -h asks for help */
+ if (internal_help && ctx->total == 1 && !strcmp(arg + 1, "h"))
+ goto show_usage;
+
if (arg[1] != '-') {
ctx->opt = arg + 1;
- if (internal_help && *ctx->opt == 'h')
- return parse_options_usage(ctx, usagestr, options, 0);
switch (parse_short_opt(ctx, options)) {
case -1:
- return parse_options_usage(ctx, usagestr, options, 1);
+ goto show_usage_error;
case -2:
if (ctx->opt)
check_typos(arg + 1, options);
+ if (internal_help && *ctx->opt == 'h')
+ goto show_usage;
goto unknown;
}
if (ctx->opt)
check_typos(arg + 1, options);
while (ctx->opt) {
- if (internal_help && *ctx->opt == 'h')
- return parse_options_usage(ctx, usagestr, options, 0);
switch (parse_short_opt(ctx, options)) {
case -1:
- return parse_options_usage(ctx, usagestr, options, 1);
+ goto show_usage_error;
case -2:
+ if (internal_help && *ctx->opt == 'h')
+ goto show_usage;
+
/* fake a short option thing to hide the fact that we may have
* started to parse aggregated stuff
*
@@ -479,10 +498,10 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
if (internal_help && !strcmp(arg + 2, "help-all"))
return usage_with_options_internal(ctx, usagestr, options, 1, 0);
if (internal_help && !strcmp(arg + 2, "help"))
- return parse_options_usage(ctx, usagestr, options, 0);
+ goto show_usage;
switch (parse_long_opt(ctx, arg + 2, options)) {
case -1:
- return parse_options_usage(ctx, usagestr, options, 1);
+ goto show_usage_error;
case -2:
goto unknown;
}
@@ -494,6 +513,11 @@ unknown:
ctx->opt = NULL;
}
return PARSE_OPT_DONE;
+
+ show_usage_error:
+ err = 1;
+ show_usage:
+ return usage_with_options_internal(ctx, usagestr, options, 0, err);
}
int parse_options_end(struct parse_opt_ctx_t *ctx)
@@ -639,13 +663,6 @@ void NORETURN usage_msg_opt(const char *msg,
usage_with_options(usagestr, options);
}
-static int parse_options_usage(struct parse_opt_ctx_t *ctx,
- const char * const *usagestr,
- const struct option *opts, int err)
-{
- return usage_with_options_internal(ctx, usagestr, opts, 0, err);
-}
-
#undef opterror
int opterror(const struct option *opt, const char *reason, int flags)
{