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-rw-r--r--hash-object.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/hash-object.c b/hash-object.c
new file mode 100644
index 0000000000..5f89e64c13
--- /dev/null
+++ b/hash-object.c
@@ -0,0 +1,81 @@
+/*
+ * GIT - The information manager from hell
+ *
+ * Copyright (C) Linus Torvalds, 2005
+ * Copyright (C) Junio C Hamano, 2005
+ */
+#include "cache.h"
+#include "blob.h"
+
+static void hash_object(const char *path, const char *type, int write_object)
+{
+ int fd;
+ struct stat st;
+ unsigned char sha1[20];
+ fd = open(path, O_RDONLY);
+ if (fd < 0 ||
+ fstat(fd, &st) < 0 ||
+ index_fd(sha1, fd, &st, write_object, type))
+ die(write_object
+ ? "Unable to add %s to database"
+ : "Unable to hash %s", path);
+ printf("%s\n", sha1_to_hex(sha1));
+}
+
+static void hash_stdin(const char *type, int write_object)
+{
+ unsigned char sha1[20];
+ if (index_pipe(sha1, 0, type, write_object))
+ die("Unable to add stdin to database");
+ printf("%s\n", sha1_to_hex(sha1));
+}
+
+static const char hash_object_usage[] =
+"git-hash-object [-t <type>] [-w] [--stdin] <file>...";
+
+int main(int argc, char **argv)
+{
+ int i;
+ const char *type = blob_type;
+ int write_object = 0;
+ const char *prefix = NULL;
+ int prefix_length = -1;
+ int no_more_flags = 0;
+
+ for (i = 1 ; i < argc; i++) {
+ if (!no_more_flags && argv[i][0] == '-') {
+ if (!strcmp(argv[i], "-t")) {
+ if (argc <= ++i)
+ usage(hash_object_usage);
+ type = argv[i];
+ }
+ else if (!strcmp(argv[i], "-w")) {
+ if (prefix_length < 0) {
+ prefix = setup_git_directory();
+ prefix_length =
+ prefix ? strlen(prefix) : 0;
+ }
+ write_object = 1;
+ }
+ else if (!strcmp(argv[i], "--")) {
+ no_more_flags = 1;
+ }
+ else if (!strcmp(argv[i], "--help"))
+ usage(hash_object_usage);
+ else if (!strcmp(argv[i], "--stdin")) {
+ hash_stdin(type, write_object);
+ }
+ else
+ usage(hash_object_usage);
+ }
+ else {
+ const char *arg = argv[i];
+ if (0 <= prefix_length)
+ arg = prefix_filename(prefix, prefix_length,
+ arg);
+ hash_object(arg, type, write_object);
+ no_more_flags = 1;
+ }
+ }
+ return 0;
+}