0721c314a5
Lots of die() calls did not actually report the kind of error, which can leave the user confused as to the real problem. Use die_errno() where we check a system/library call that sets errno on failure, or one of the following that wrap such calls: Function Passes on error from -------- -------------------- odb_pack_keep open read_ancestry fopen read_in_full xread strbuf_read xread strbuf_read_file open or strbuf_read_file strbuf_readlink readlink write_in_full xwrite Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
42 lines
841 B
C
42 lines
841 B
C
#include "cache.h"
|
|
#include "blob.h"
|
|
#include "exec_cmd.h"
|
|
|
|
static char *create_temp_file(unsigned char *sha1)
|
|
{
|
|
static char path[50];
|
|
void *buf;
|
|
enum object_type type;
|
|
unsigned long size;
|
|
int fd;
|
|
|
|
buf = read_sha1_file(sha1, &type, &size);
|
|
if (!buf || type != OBJ_BLOB)
|
|
die("unable to read blob object %s", sha1_to_hex(sha1));
|
|
|
|
strcpy(path, ".merge_file_XXXXXX");
|
|
fd = xmkstemp(path);
|
|
if (write_in_full(fd, buf, size) != size)
|
|
die_errno("unable to write temp-file");
|
|
close(fd);
|
|
return path;
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
unsigned char sha1[20];
|
|
|
|
git_extract_argv0_path(argv[0]);
|
|
|
|
if (argc != 2)
|
|
usage("git unpack-file <sha1>");
|
|
if (get_sha1(argv[1], sha1))
|
|
die("Not a valid object name %s", argv[1]);
|
|
|
|
setup_git_directory();
|
|
git_config(git_default_config, NULL);
|
|
|
|
puts(create_temp_file(sha1));
|
|
return 0;
|
|
}
|