diff options
| -rw-r--r-- | parse-options.c | 21 | ||||
| -rw-r--r-- | parse-options.h | 11 |
2 files changed, 32 insertions, 0 deletions
diff --git a/parse-options.c b/parse-options.c index c751ebf..12a9f9e 100644 --- a/parse-options.c +++ b/parse-options.c @@ -254,3 +254,24 @@ void usage_with_options(const char * const *usagestr, exit(129); } + +/*----- some often used options -----*/ +#include "cache.h" +int parse_opt_abbrev_cb(const struct option *opt, const char *arg, int unset) +{ + int v; + + if (!arg) { + v = unset ? 0 : DEFAULT_ABBREV; + } else { + v = strtol(arg, (char **)&arg, 10); + if (*arg) + return opterror(opt, "expects a numerical value", 0); + if (v && v < MINIMUM_ABBREV) + v = MINIMUM_ABBREV; + else if (v > 40) + v = 40; + } + *(int *)(opt->value) = v; + return 0; +} diff --git a/parse-options.h b/parse-options.h index 2b8e762..2558e00 100644 --- a/parse-options.h +++ b/parse-options.h @@ -55,4 +55,15 @@ extern int parse_options(int argc, const char **argv, extern NORETURN void usage_with_options(const char * const *usagestr, const struct option *options); +/*----- some often used options -----*/ +extern int parse_opt_abbrev_cb(const struct option *, const char *, int); + +#define OPT__VERBOSE(var) OPT_BOOLEAN('v', "verbose", (var), "be verbose") +#define OPT__QUIET(var) OPT_BOOLEAN('q', "quiet", (var), "be quiet") +#define OPT__DRY_RUN(var) OPT_BOOLEAN('n', "dry-run", (var), "dry run") +#define OPT__ABBREV(var) \ + { OPTION_CALLBACK, 0, "abbrev", (var), "n", \ + "use <n> digits to display SHA-1s", \ + PARSE_OPT_OPTARG, &parse_opt_abbrev_cb, 0 } + #endif |