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parse-options: allow ll_callback with OPTION_CALLBACK

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OPTION_CALLBACK is much simpler/safer to use, but parse_opt_cb does
not allow access to parse_opt_ctx_t, which sometimes is useful
(e.g. to obtain the prefix).

Extending parse_opt_cb to take parse_opt_cb could result in a lot of
changes. Instead let's just allow ll_callback to be used with
OPTION_CALLBACK. The user will have to be careful, not to change
anything in ctx, or return wrong result code. But that's the price for
ll_callback.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy
2019-01-27 07:35:28 +07:00
committed by Junio C Hamano
parent f41179f16b
commit 3ebbe28989
5 changed files with 52 additions and 23 deletions
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20
builtin/update-index.c
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@ -848,13 +848,15 @@ static int parse_new_style_cacheinfo(const char *arg,
}
static enum parse_opt_result cacheinfo_callback(
struct parse_opt_ctx_t *ctx, const struct option *opt, int unset)
struct parse_opt_ctx_t *ctx, const struct option *opt,
const char *arg, int unset)
{
struct object_id oid;
unsigned int mode;
const char *path;
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, &oid, &path)) {
if (add_cacheinfo(mode, &oid, path, 0))
@ -874,11 +876,13 @@ static enum parse_opt_result cacheinfo_callback(
}
static enum parse_opt_result stdin_cacheinfo_callback(
struct parse_opt_ctx_t *ctx, const struct option *opt, int unset)
struct parse_opt_ctx_t *ctx, const struct option *opt,
const char *arg, int unset)
{
int *nul_term_line = opt->value;
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
if (ctx->argc != 1)
return error("option '%s' must be the last argument", opt->long_name);
@ -888,11 +892,13 @@ static enum parse_opt_result stdin_cacheinfo_callback(
}
static enum parse_opt_result stdin_callback(
struct parse_opt_ctx_t *ctx, const struct option *opt, int unset)
struct parse_opt_ctx_t *ctx, const struct option *opt,
const char *arg, int unset)
{
int *read_from_stdin = opt->value;
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
if (ctx->argc != 1)
return error("option '%s' must be the last argument", opt->long_name);
@ -901,12 +907,14 @@ static enum parse_opt_result stdin_callback(
}
static enum parse_opt_result unresolve_callback(
struct parse_opt_ctx_t *ctx, const struct option *opt, int unset)
struct parse_opt_ctx_t *ctx, const struct option *opt,
const char *arg, int unset)
{
int *has_errors = opt->value;
const char *prefix = startup_info->prefix;
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
/* consume remaining arguments. */
*has_errors = do_unresolve(ctx->argc, ctx->argv,
@ -920,12 +928,14 @@ static enum parse_opt_result unresolve_callback(
}
static enum parse_opt_result reupdate_callback(
struct parse_opt_ctx_t *ctx, const struct option *opt, int unset)
struct parse_opt_ctx_t *ctx, const struct option *opt,
const char *arg, int unset)
{
int *has_errors = opt->value;
const char *prefix = startup_info->prefix;
BUG_ON_OPT_NEG(unset);
BUG_ON_OPT_ARG(arg);
/* consume remaining arguments. */
setup_work_tree();