mirror of
https://github.com/git/git.git
synced 2024-11-19 07:24:50 +01:00
1b1dd23f2d
When you misuse a git command, you are shown the usage string. But this is currently shown in the dashed form. So if you just copy what you see, it will not work, when the dashed form is no longer supported. This patch makes git commands show the dash-less version. For shell scripts that do not specify OPTIONS_SPEC, git-sh-setup.sh generates a dash-less usage string now. Signed-off-by: Stephan Beyer <s-beyer@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
136 lines
3.2 KiB
C
136 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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