It helps with consistency of the help strings e.g.
Signed-off-by: Pierre Habouzit <madcoder@xxxxxxxxxx>
---
parse-options.c | 21 +++++++++++++++++++++
parse-options.h | 11 +++++++++++
2 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/parse-options.c b/parse-options.c
index d156594..63f5d4e 100644
--- a/parse-options.c
+++ b/parse-options.c
@@ -225,3 +225,24 @@ 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 3006a76..a0343bd 100644
--- a/parse-options.h
+++ b/parse-options.h
@@ -39,4 +39,15 @@ 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's", \
+ PARSE_OPT_OPTARG, &parse_opt_abbrev_cb, 0 }
+
#endif
--
1.5.3.4.1231.g62b9a
-
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