static char signingkey[1000];
-static void launch_editor(const char *path, char **buffer, unsigned long *len)
+static void launch_editor(const char *path, struct strbuf *buffer)
{
const char *editor, *terminal;
struct child_process child;
fd = open(path, O_RDONLY);
if (fd < 0)
die("could not open '%s': %s", path, strerror(errno));
- if (read_fd(fd, buffer, len)) {
- free(*buffer);
- die("could not read message file '%s': %s",
- path, strerror(errno));
+ if (strbuf_read(buffer, fd, 0) < 0) {
+ die("could not read message file '%s': %s", path, strerror(errno));
}
close(fd);
}
return 0;
}
-static ssize_t do_sign(char *buffer, size_t size, size_t max)
+static int do_sign(struct strbuf *buffer)
{
struct child_process gpg;
const char *args[4];
if (start_command(&gpg))
return error("could not run gpg.");
- if (write_in_full(gpg.in, buffer, size) != size) {
+ if (write_in_full(gpg.in, buffer->buf, buffer->len) != buffer->len) {
close(gpg.in);
finish_command(&gpg);
return error("gpg did not accept the tag data");
}
close(gpg.in);
gpg.close_in = 0;
- len = read_in_full(gpg.out, buffer + size, max - size);
+ len = strbuf_read(buffer, gpg.out, 1024);
if (finish_command(&gpg) || !len || len < 0)
return error("gpg failed to sign the tag");
- if (len == max - size)
+ if (len < 0)
return error("could not read the entire signature from gpg.");
- return size + len;
+ return 0;
}
static const char tag_template[] =
return git_default_config(var, value);
}
-#define MAX_SIGNATURE_LENGTH 1024
-/* message must be NULL or allocated, it will be reallocated and freed */
static void create_tag(const unsigned char *object, const char *tag,
- char *message, int sign, unsigned char *result)
+ struct strbuf *buf, int message, int sign,
+ unsigned char *result)
{
enum object_type type;
- char header_buf[1024], *buffer = NULL;
- int header_len, max_size;
- unsigned long size = 0;
+ char header_buf[1024];
+ int header_len;
type = sha1_object_info(object, NULL);
if (type <= OBJ_NONE)
write_or_die(fd, tag_template, strlen(tag_template));
close(fd);
- launch_editor(path, &buffer, &size);
+ launch_editor(path, buf);
unlink(path);
free(path);
}
- else {
- buffer = message;
- size = strlen(message);
- }
- size = stripspace(buffer, size, 1);
+ strbuf_setlen(buf, stripspace(buf->buf, buf->len, 1));
- if (!message && !size)
+ if (!message && !buf->len)
die("no tag message?");
/* insert the header and add the '\n' if needed: */
- max_size = header_len + size + (sign ? MAX_SIGNATURE_LENGTH : 0) + 1;
- buffer = xrealloc(buffer, max_size);
- if (size)
- buffer[size++] = '\n';
- memmove(buffer + header_len, buffer, size);
- memcpy(buffer, header_buf, header_len);
- size += header_len;
-
- if (sign) {
- ssize_t r = do_sign(buffer, size, max_size);
- if (r < 0)
- die("unable to sign the tag");
- size = r;
- }
+ if (buf->len)
+ strbuf_addch(buf, '\n');
+ strbuf_insert(buf, 0, header_buf, header_len);
- if (write_sha1_file(buffer, size, tag_type, result) < 0)
+ if (sign && do_sign(buf) < 0)
+ die("unable to sign the tag");
+ if (write_sha1_file(buf->buf, buf->len, tag_type, result) < 0)
die("unable to write tag file");
- free(buffer);
}
int cmd_tag(int argc, const char **argv, const char *prefix)
{
+ struct strbuf buf;
unsigned char object[20], prev[20];
- int annotate = 0, sign = 0, force = 0, lines = 0;
- char *message = NULL;
+ int annotate = 0, sign = 0, force = 0, lines = 0, message = 0;
char ref[PATH_MAX];
const char *object_ref, *tag;
int i;
struct ref_lock *lock;
git_config(git_tag_config);
+ strbuf_init(&buf, 0);
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
die("option -m needs an argument.");
if (message)
die("only one -F or -m option is allowed.");
- message = xstrdup(argv[i]);
+ strbuf_addstr(&buf, argv[i]);
+ message = 1;
continue;
}
if (!strcmp(arg, "-F")) {
- unsigned long len;
int fd;
annotate = 1;
die("could not open '%s': %s",
argv[i], strerror(errno));
}
- len = 1024;
- message = xmalloc(len);
- if (read_fd(fd, &message, &len)) {
- free(message);
+ if (strbuf_read(&buf, fd, 1024) < 0) {
die("cannot read %s", argv[i]);
}
+ message = 1;
continue;
}
if (!strcmp(arg, "-u")) {
die("tag '%s' already exists", tag);
if (annotate)
- create_tag(object, tag, message, sign, object);
+ create_tag(object, tag, &buf, message, sign, object);
lock = lock_any_ref_for_update(ref, prev, 0);
if (!lock)
if (write_ref_sha1(lock, object, NULL) < 0)
die("%s: cannot update the ref", ref);
+ strbuf_release(&buf);
return 0;
}