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builtin-mktree.c: use a helper function to handle one line of input

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The main() function used to do the whole thing; this moves the handling of
a single input line to a separate function to make it easier to read.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2009-05-10 10:41:22 -07:00
parent 1fdee85c88
commit fe0bb5f7bc
1 changed files with 41 additions and 39 deletions
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80
builtin-mktree.c
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@ -67,10 +67,48 @@ static const char *mktree_usage[] = {
NULL
};
static void mktree_line(char *buf, size_t len, int line_termination)
{
char *ptr, *ntr;
unsigned mode;
enum object_type type;
char *path;
unsigned char sha1[20];
ptr = buf;
/*
* Read non-recursive ls-tree output format:
* mode SP type SP sha1 TAB name
*/
mode = strtoul(ptr, &ntr, 8);
if (ptr == ntr || !ntr || *ntr != ' ')
die("input format error: %s", buf);
ptr = ntr + 1; /* type */
ntr = strchr(ptr, ' ');
if (!ntr || buf + len <= ntr + 40 ||
ntr[41] != '\t' ||
get_sha1_hex(ntr + 1, sha1))
die("input format error: %s", buf);
type = sha1_object_info(sha1, NULL);
if (type < 0)
die("object %s unavailable", sha1_to_hex(sha1));
*ntr++ = 0; /* now at the beginning of SHA1 */
if (type != type_from_string(ptr))
die("object type %s mismatch (%s)", ptr, typename(type));
path = ntr + 41; /* at the beginning of name */
if (line_termination && path[0] == '"') {
struct strbuf p_uq = STRBUF_INIT;
if (unquote_c_style(&p_uq, path, NULL))
die("invalid quoting");
path = strbuf_detach(&p_uq, NULL);
}
append_to_tree(mode, sha1, path);
}
int cmd_mktree(int ac, const char **av, const char *prefix)
{
struct strbuf sb = STRBUF_INIT;
struct strbuf p_uq = STRBUF_INIT;
unsigned char sha1[20];
int line_termination = '\n';
const struct option option[] = {
@ -80,45 +118,9 @@ int cmd_mktree(int ac, const char **av, const char *prefix)
ac = parse_options(ac, av, option, mktree_usage, 0);
while (strbuf_getline(&sb, stdin, line_termination) != EOF) {
char *ptr, *ntr;
unsigned mode;
enum object_type type;
char *path;
while (strbuf_getline(&sb, stdin, line_termination) != EOF)
mktree_line(sb.buf, sb.len, line_termination);
ptr = sb.buf;
/*
* Read non-recursive ls-tree output format:
* mode SP type SP sha1 TAB name
*/
mode = strtoul(ptr, &ntr, 8);
if (ptr == ntr || !ntr || *ntr != ' ')
die("input format error: %s", sb.buf);
ptr = ntr + 1; /* type */
ntr = strchr(ptr, ' ');
if (!ntr || sb.buf + sb.len <= ntr + 40 ||
ntr[41] != '\t' ||
get_sha1_hex(ntr + 1, sha1))
die("input format error: %s", sb.buf);
type = sha1_object_info(sha1, NULL);
if (type < 0)
die("object %s unavailable", sha1_to_hex(sha1));
*ntr++ = 0; /* now at the beginning of SHA1 */
if (type != type_from_string(ptr))
die("object type %s mismatch (%s)", ptr, typename(type));
path = ntr + 41; /* at the beginning of name */
if (line_termination && path[0] == '"') {
strbuf_reset(&p_uq);
if (unquote_c_style(&p_uq, path, NULL)) {
die("invalid quoting");
}
path = p_uq.buf;
}
append_to_tree(mode, sha1, path);
}
strbuf_release(&p_uq);
strbuf_release(&sb);
write_tree(sha1);