From dd3bf0f4a5bab17011e94bfeb808ee64dd2ad040 Mon Sep 17 00:00:00 2001 From: Pierre Habouzit Date: Mon, 19 Nov 2007 10:21:44 +0100 Subject: [PATCH] parse-options: Allow to hide options from the default usage. This is useful for backward-compatibility aliases, or very advanced command line switches introduced for internal git usages and have no real use for a user. parse-options still shows them if the user asks for --help-all. Signed-off-by: Pierre Habouzit Signed-off-by: Junio C Hamano --- parse-options.c | 17 +++++++++++++++-- parse-options.h | 3 +++ 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/parse-options.c b/parse-options.c index d3e608ac4..e12b428c0 100644 --- a/parse-options.c +++ b/parse-options.c @@ -216,6 +216,9 @@ is_abbreviated: return error("unknown option `%s'", arg); } +static NORETURN void usage_with_options_internal(const char * const *, + const struct option *, int); + int parse_options(int argc, const char **argv, const struct option *options, const char * const usagestr[], int flags) { @@ -249,6 +252,8 @@ int parse_options(int argc, const char **argv, const struct option *options, break; } + if (!strcmp(arg + 2, "help-all")) + usage_with_options_internal(usagestr, options, 1); if (!strcmp(arg + 2, "help")) usage_with_options(usagestr, options); if (parse_long_opt(&args, arg + 2, options)) @@ -263,8 +268,8 @@ int parse_options(int argc, const char **argv, const struct option *options, #define USAGE_OPTS_WIDTH 24 #define USAGE_GAP 2 -void usage_with_options(const char * const *usagestr, - const struct option *opts) +void usage_with_options_internal(const char * const *usagestr, + const struct option *opts, int full) { fprintf(stderr, "usage: %s\n", *usagestr++); while (*usagestr && **usagestr) @@ -285,6 +290,8 @@ void usage_with_options(const char * const *usagestr, fprintf(stderr, "%s\n", opts->help); continue; } + if (!full && (opts->flags & PARSE_OPT_HIDDEN)) + continue; pos = fprintf(stderr, " "); if (opts->short_name) @@ -335,6 +342,12 @@ void usage_with_options(const char * const *usagestr, exit(129); } +void usage_with_options(const char * const *usagestr, + const struct option *opts) +{ + usage_with_options_internal(usagestr, opts, 0); +} + /*----- some often used options -----*/ #include "cache.h" diff --git a/parse-options.h b/parse-options.h index a8760ac4b..102ac31fb 100644 --- a/parse-options.h +++ b/parse-options.h @@ -24,6 +24,7 @@ enum parse_opt_option_flags { PARSE_OPT_OPTARG = 1, PARSE_OPT_NOARG = 2, PARSE_OPT_NONEG = 4, + PARSE_OPT_HIDDEN = 8, }; struct option; @@ -57,6 +58,8 @@ typedef int parse_opt_cb(const struct option *, const char *arg, int unset); * PARSE_OPT_OPTARG: says that the argument is optionnal (not for BOOLEANs) * PARSE_OPT_NOARG: says that this option takes no argument, for CALLBACKs * PARSE_OPT_NONEG: says that this option cannot be negated + * PARSE_OPT_HIDDEN this option is skipped in the default usage, showed in + * the long one. * * `callback`:: * pointer to the callback to use for OPTION_CALLBACK. -- 2.26.2