X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=builtin-cat-file.c;h=bd343efae7d6cc6fddef4df5c3433b97bd640d3c;hb=3c076dbe3cffee3b5cbf34759d627c47a417c145;hp=a76bb16b49d320cfe09b19e612382fb9b146553c;hpb=4814dbe830baf5a72d8abbbfcc60eeea478b47c2;p=git.git

diff --git a/builtin-cat-file.c b/builtin-cat-file.c
index a76bb16b4..bd343efae 100644
--- a/builtin-cat-file.c
+++ b/builtin-cat-file.c
@@ -8,6 +8,10 @@
 #include "tag.h"
 #include "tree.h"
 #include "builtin.h"
+#include "parse-options.h"
+
+#define BATCH 1
+#define BATCH_CHECK 2
 
 static void pprint_tag(const unsigned char *sha1, const char *buf, unsigned long size)
 {
@@ -143,41 +147,111 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name)
 	return 0;
 }
 
-static const char cat_file_usage[] = "git-cat-file [-t|-s|-e|-p|<type>] <sha1>";
+static int batch_one_object(const char *obj_name, int print_contents)
+{
+	unsigned char sha1[20];
+	enum object_type type = 0;
+	unsigned long size;
+	void *contents = contents;
 
-int cmd_cat_file(int argc, const char **argv, const char *prefix)
+	if (!obj_name)
+	   return 1;
+
+	if (get_sha1(obj_name, sha1)) {
+		printf("%s missing\n", obj_name);
+		fflush(stdout);
+		return 0;
+	}
+
+	if (print_contents == BATCH)
+		contents = read_sha1_file(sha1, &type, &size);
+	else
+		type = sha1_object_info(sha1, &size);
+
+	if (type <= 0) {
+		printf("%s missing\n", obj_name);
+		fflush(stdout);
+		return 0;
+	}
+
+	printf("%s %s %lu\n", sha1_to_hex(sha1), typename(type), size);
+	fflush(stdout);
+
+	if (print_contents == BATCH) {
+		write_or_die(1, contents, size);
+		printf("\n");
+		fflush(stdout);
+	}
+
+	return 0;
+}
+
+static int batch_objects(int print_contents)
 {
-	int i, opt = 0;
-	const char *exp_type = NULL, *obj_name = NULL;
+	struct strbuf buf;
 
-	git_config(git_default_config);
+	strbuf_init(&buf, 0);
+	while (strbuf_getline(&buf, stdin, '\n') != EOF) {
+		int error = batch_one_object(buf.buf, print_contents);
+		if (error)
+			return error;
+	}
 
-	for (i = 1; i < argc; ++i) {
-		const char *arg = argv[i];
+	return 0;
+}
 
-		if (!strcmp(arg, "-t") || !strcmp(arg, "-s") || !strcmp(arg, "-e") || !strcmp(arg, "-p")) {
-			exp_type = arg;
-			opt = exp_type[1];
-			continue;
-		}
+static const char * const cat_file_usage[] = {
+	"git-cat-file [-t|-s|-e|-p|<type>] <sha1>",
+	"git-cat-file [--batch|--batch-check] < <list_of_sha1s>",
+	NULL
+};
 
-		if (arg[0] == '-')
-			usage(cat_file_usage);
+int cmd_cat_file(int argc, const char **argv, const char *prefix)
+{
+	int opt = 0, batch = 0;
+	const char *exp_type = NULL, *obj_name = NULL;
 
-		if (!exp_type) {
-			exp_type = arg;
-			continue;
-		}
+	const struct option options[] = {
+		OPT_GROUP("<type> can be one of: blob, tree, commit, tag"),
+		OPT_SET_INT('t', NULL, &opt, "show object type", 't'),
+		OPT_SET_INT('s', NULL, &opt, "show object size", 's'),
+		OPT_SET_INT('e', NULL, &opt,
+			    "exit with zero when there's no error", 'e'),
+		OPT_SET_INT('p', NULL, &opt, "pretty-print object's content", 'p'),
+		OPT_SET_INT(0, "batch", &batch,
+			    "show info and content of objects feeded on stdin", BATCH),
+		OPT_SET_INT(0, "batch-check", &batch,
+			    "show info about objects feeded on stdin",
+			    BATCH_CHECK),
+		OPT_END()
+	};
 
-		if (obj_name)
-			usage(cat_file_usage);
+	git_config(git_default_config, NULL);
 
-		obj_name = arg;
-		break;
+	if (argc != 3 && argc != 2)
+		usage_with_options(cat_file_usage, options);
+
+	argc = parse_options(argc, argv, options, cat_file_usage, 0);
+
+	if (opt) {
+		if (argc == 1)
+			obj_name = argv[0];
+		else
+			usage_with_options(cat_file_usage, options);
+	}
+	if (!opt && !batch) {
+		if (argc == 2) {
+			exp_type = argv[0];
+			obj_name = argv[1];
+		} else
+			usage_with_options(cat_file_usage, options);
+	}
+	if (batch && (opt || argc)) {
+		usage_with_options(cat_file_usage, options);
 	}
 
-	if (!exp_type || !obj_name)
-		usage(cat_file_usage);
+	if (batch)
+		return batch_objects(batch);
 
 	return cat_one_file(opt, exp_type, obj_name);
 }