137 lines
3.2 KiB
C
137 lines
3.2 KiB
C
/*
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* GIT - The information manager from hell
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*
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* Copyright (C) Linus Torvalds, 2005
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* Copyright (C) Junio C Hamano, 2005
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*/
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#include "cache.h"
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#include "blob.h"
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#include "quote.h"
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static void hash_object(const char *path, enum object_type type, int write_object)
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{
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int fd;
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struct stat st;
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unsigned char sha1[20];
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fd = open(path, O_RDONLY);
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if (fd < 0 ||
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fstat(fd, &st) < 0 ||
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index_fd(sha1, fd, &st, write_object, type, path))
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die(write_object
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? "Unable to add %s to database"
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: "Unable to hash %s", path);
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printf("%s\n", sha1_to_hex(sha1));
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maybe_flush_or_die(stdout, "hash to stdout");
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}
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static void hash_stdin(const char *type, int write_object)
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{
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unsigned char sha1[20];
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if (index_pipe(sha1, 0, type, write_object))
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die("Unable to add stdin to database");
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printf("%s\n", sha1_to_hex(sha1));
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}
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static void hash_stdin_paths(const char *type, int write_objects)
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{
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struct strbuf buf, nbuf;
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strbuf_init(&buf, 0);
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strbuf_init(&nbuf, 0);
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while (strbuf_getline(&buf, stdin, '\n') != EOF) {
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if (buf.buf[0] == '"') {
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strbuf_reset(&nbuf);
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if (unquote_c_style(&nbuf, buf.buf, NULL))
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die("line is badly quoted");
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strbuf_swap(&buf, &nbuf);
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}
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hash_object(buf.buf, type_from_string(type), write_objects);
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}
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strbuf_release(&buf);
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strbuf_release(&nbuf);
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}
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static const char hash_object_usage[] =
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"git-hash-object [ [-t <type>] [-w] [--stdin] <file>... | --stdin-paths < <list-of-paths> ]";
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int main(int argc, char **argv)
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{
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int i;
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const char *type = blob_type;
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int write_object = 0;
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const char *prefix = NULL;
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int prefix_length = -1;
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int no_more_flags = 0;
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int hashstdin = 0;
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int stdin_paths = 0;
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git_config(git_default_config, NULL);
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for (i = 1 ; i < argc; i++) {
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if (!no_more_flags && argv[i][0] == '-') {
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if (!strcmp(argv[i], "-t")) {
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if (argc <= ++i)
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usage(hash_object_usage);
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type = argv[i];
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}
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else if (!strcmp(argv[i], "-w")) {
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if (prefix_length < 0) {
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prefix = setup_git_directory();
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prefix_length =
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prefix ? strlen(prefix) : 0;
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}
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write_object = 1;
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}
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else if (!strcmp(argv[i], "--")) {
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no_more_flags = 1;
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}
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else if (!strcmp(argv[i], "--help"))
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usage(hash_object_usage);
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else if (!strcmp(argv[i], "--stdin-paths")) {
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if (hashstdin) {
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error("Can't use --stdin-paths with --stdin");
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usage(hash_object_usage);
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}
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stdin_paths = 1;
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}
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else if (!strcmp(argv[i], "--stdin")) {
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if (stdin_paths) {
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error("Can't use %s with --stdin-paths", argv[i]);
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usage(hash_object_usage);
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}
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if (hashstdin)
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die("Multiple --stdin arguments are not supported");
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hashstdin = 1;
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}
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else
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usage(hash_object_usage);
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}
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else {
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const char *arg = argv[i];
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if (stdin_paths) {
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error("Can't specify files (such as \"%s\") with --stdin-paths", arg);
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usage(hash_object_usage);
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}
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if (hashstdin) {
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hash_stdin(type, write_object);
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hashstdin = 0;
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}
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if (0 <= prefix_length)
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arg = prefix_filename(prefix, prefix_length,
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arg);
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hash_object(arg, type_from_string(type), write_object);
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no_more_flags = 1;
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}
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}
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if (stdin_paths)
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hash_stdin_paths(type, write_object);
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if (hashstdin)
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hash_stdin(type, write_object);
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return 0;
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}
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