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authorJeff King <peff@peff.net>2013-07-10 11:38:58 (GMT)
committerJunio C Hamano <gitster@pobox.com>2013-07-11 17:39:13 (GMT)
commitb71bd48017981f7257d8c0a5096825321b4fb49b (patch)
tree72a826b14104a16a346e7e9b9e59c161ddc3d040 /builtin/cat-file.c
parent98e2092b5027fde9dbe68cb49a196ad2184c02c3 (diff)
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cat-file: refactor --batch option parsing
We currently use an int to tell us whether --batch parsing is on, and if so, whether we should print the full object contents. Let's instead factor this into a struct, filled in by callback, which will make further batch-related options easy to add. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/cat-file.c')
-rw-r--r--builtin/cat-file.c56
1 files changed, 38 insertions, 18 deletions
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 70dd8c8..5254fe8 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -13,9 +13,6 @@
#include "userdiff.h"
#include "streaming.h"
-#define BATCH 1
-#define BATCH_CHECK 2
-
static int cat_one_file(int opt, const char *exp_type, const char *obj_name)
{
unsigned char sha1[20];
@@ -142,7 +139,12 @@ static void print_object_or_die(int fd, const unsigned char *sha1,
}
}
-static int batch_one_object(const char *obj_name, int print_contents)
+struct batch_options {
+ int enabled;
+ int print_contents;
+};
+
+static int batch_one_object(const char *obj_name, struct batch_options *opt)
{
unsigned char sha1[20];
enum object_type type = 0;
@@ -167,19 +169,19 @@ static int batch_one_object(const char *obj_name, int print_contents)
printf("%s %s %lu\n", sha1_to_hex(sha1), typename(type), size);
fflush(stdout);
- if (print_contents == BATCH) {
+ if (opt->print_contents) {
print_object_or_die(1, sha1, type, size);
write_or_die(1, "\n", 1);
}
return 0;
}
-static int batch_objects(int print_contents)
+static int batch_objects(struct batch_options *opt)
{
struct strbuf buf = STRBUF_INIT;
while (strbuf_getline(&buf, stdin, '\n') != EOF) {
- int error = batch_one_object(buf.buf, print_contents);
+ int error = batch_one_object(buf.buf, opt);
if (error)
return error;
}
@@ -201,10 +203,28 @@ static int git_cat_file_config(const char *var, const char *value, void *cb)
return git_default_config(var, value, cb);
}
+static int batch_option_callback(const struct option *opt,
+ const char *arg,
+ int unset)
+{
+ struct batch_options *bo = opt->value;
+
+ if (unset) {
+ memset(bo, 0, sizeof(*bo));
+ return 0;
+ }
+
+ bo->enabled = 1;
+ bo->print_contents = !strcmp(opt->long_name, "batch");
+
+ return 0;
+}
+
int cmd_cat_file(int argc, const char **argv, const char *prefix)
{
- int opt = 0, batch = 0;
+ int opt = 0;
const char *exp_type = NULL, *obj_name = NULL;
+ struct batch_options batch = {0};
const struct option options[] = {
OPT_GROUP(N_("<type> can be one of: blob, tree, commit, tag")),
@@ -215,12 +235,12 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
OPT_SET_INT('p', NULL, &opt, N_("pretty-print object's content"), 'p'),
OPT_SET_INT(0, "textconv", &opt,
N_("for blob objects, run textconv on object's content"), 'c'),
- OPT_SET_INT(0, "batch", &batch,
- N_("show info and content of objects fed from the standard input"),
- BATCH),
- OPT_SET_INT(0, "batch-check", &batch,
- N_("show info about objects fed from the standard input"),
- BATCH_CHECK),
+ { OPTION_CALLBACK, 0, "batch", &batch, NULL,
+ N_("show info and content of objects fed from the standard input"),
+ PARSE_OPT_NOARG, batch_option_callback },
+ { OPTION_CALLBACK, 0, "batch-check", &batch, NULL,
+ N_("show info about objects fed from the standard input"),
+ PARSE_OPT_NOARG, batch_option_callback },
OPT_END()
};
@@ -237,19 +257,19 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
else
usage_with_options(cat_file_usage, options);
}
- if (!opt && !batch) {
+ if (!opt && !batch.enabled) {
if (argc == 2) {
exp_type = argv[0];
obj_name = argv[1];
} else
usage_with_options(cat_file_usage, options);
}
- if (batch && (opt || argc)) {
+ if (batch.enabled && (opt || argc)) {
usage_with_options(cat_file_usage, options);
}
- if (batch)
- return batch_objects(batch);
+ if (batch.enabled)
+ return batch_objects(&batch);
return cat_one_file(opt, exp_type, obj_name);
}