#include "tree.h"
#include "builtin.h"
-static void flush_buffer(const char *buf, unsigned long size)
-{
- while (size > 0) {
- long ret = xwrite(1, buf, size);
- if (ret < 0) {
- /* Ignore epipe */
- if (errno == EPIPE)
- break;
- die("git-cat-file: %s", strerror(errno));
- } else if (!ret) {
- die("git-cat-file: disk full?");
- }
- size -= ret;
- buf += ret;
- }
-}
-
-static int pprint_tag(const unsigned char *sha1, const char *buf, unsigned long size)
+static void pprint_tag(const unsigned char *sha1, const char *buf, unsigned long size)
{
/* the parser in tag.c is useless here. */
const char *endp = buf + size;
/* Found the tagger line. Copy out the contents
* of the buffer so far.
*/
- flush_buffer(buf, cp - buf);
+ write_or_die(1, buf, cp - buf);
/*
* Do something intelligent, like pretty-printing
sp++;
if (sp == cp) {
/* give up */
- flush_buffer(tagger,
+ write_or_die(1, tagger,
cp - tagger);
break;
}
while (sp < cp &&
!('0' <= *sp && *sp <= '9'))
sp++;
- flush_buffer(tagger, sp - tagger);
+ write_or_die(1, tagger, sp - tagger);
date = strtoul(sp, &ep, 10);
tz = strtol(ep, NULL, 10);
- sp = show_date(date, tz);
- flush_buffer(sp, strlen(sp));
+ sp = show_date(date, tz, 0);
+ write_or_die(1, sp, strlen(sp));
xwrite(1, "\n", 1);
break;
}
* remainder as is.
*/
if (cp < endp)
- flush_buffer(cp, endp - cp);
- return 0;
+ write_or_die(1, cp, endp - cp);
}
-int cmd_cat_file(int argc, const char **argv, char **envp)
+int cmd_cat_file(int argc, const char **argv, const char *prefix)
{
unsigned char sha1[20];
- char type[20];
+ enum object_type type;
void *buf;
unsigned long size;
int opt;
+ const char *exp_type, *obj_name;
- setup_git_directory();
git_config(git_default_config);
if (argc != 3)
usage("git-cat-file [-t|-s|-e|-p|<type>] <sha1>");
- if (get_sha1(argv[2], sha1))
- die("Not a valid object name %s", argv[2]);
+ exp_type = argv[1];
+ obj_name = argv[2];
+
+ if (get_sha1(obj_name, sha1))
+ die("Not a valid object name %s", obj_name);
opt = 0;
- if ( argv[1][0] == '-' ) {
- opt = argv[1][1];
- if ( !opt || argv[1][2] )
+ if ( exp_type[0] == '-' ) {
+ opt = exp_type[1];
+ if ( !opt || exp_type[2] )
opt = -1; /* Not a single character option */
}
buf = NULL;
switch (opt) {
case 't':
- if (!sha1_object_info(sha1, type, NULL)) {
- printf("%s\n", type);
+ type = sha1_object_info(sha1, NULL);
+ if (type > 0) {
+ printf("%s\n", typename(type));
return 0;
}
break;
case 's':
- if (!sha1_object_info(sha1, type, &size)) {
+ type = sha1_object_info(sha1, &size);
+ if (type > 0) {
printf("%lu\n", size);
return 0;
}
return !has_sha1_file(sha1);
case 'p':
- if (sha1_object_info(sha1, type, NULL))
- die("Not a valid object name %s", argv[2]);
+ type = sha1_object_info(sha1, NULL);
+ if (type < 0)
+ die("Not a valid object name %s", obj_name);
/* custom pretty-print here */
- if (!strcmp(type, tree_type))
- return cmd_ls_tree(2, argv + 1, NULL);
+ if (type == OBJ_TREE) {
+ const char *ls_args[3] = {"ls-tree", obj_name, NULL};
+ return cmd_ls_tree(2, ls_args, NULL);
+ }
- buf = read_sha1_file(sha1, type, &size);
+ buf = read_sha1_file(sha1, &type, &size);
if (!buf)
- die("Cannot read object %s", argv[2]);
- if (!strcmp(type, tag_type))
- return pprint_tag(sha1, buf, size);
+ die("Cannot read object %s", obj_name);
+ if (type == OBJ_TAG) {
+ pprint_tag(sha1, buf, size);
+ return 0;
+ }
/* otherwise just spit out the data */
break;
case 0:
- buf = read_object_with_reference(sha1, argv[1], &size, NULL);
+ buf = read_object_with_reference(sha1, exp_type, &size, NULL);
break;
default:
- die("git-cat-file: unknown option: %s\n", argv[1]);
+ die("git-cat-file: unknown option: %s\n", exp_type);
}
if (!buf)
- die("git-cat-file %s: bad file", argv[2]);
+ die("git-cat-file %s: bad file", obj_name);
- flush_buffer(buf, size);
+ write_or_die(1, buf, size);
return 0;
}