[PATCH] Fix git-commit-script to output on stderr when -v fails
[git.git] / unpack-file.c
1 #include "cache.h"
2
3 static char *create_temp_file(unsigned char *sha1)
4 {
5         static char path[50];
6         void *buf;
7         char type[100];
8         unsigned long size;
9         int fd;
10
11         buf = read_sha1_file(sha1, type, &size);
12         if (!buf || strcmp(type, "blob"))
13                 die("unable to read blob object %s", sha1_to_hex(sha1));
14
15         strcpy(path, ".merge_file_XXXXXX");
16         fd = mkstemp(path);
17         if (fd < 0)
18                 die("unable to create temp-file");
19         if (write(fd, buf, size) != size)
20                 die("unable to write temp-file");
21         close(fd);
22         return path;
23 }
24
25 int main(int argc, char **argv)
26 {
27         unsigned char sha1[20];
28
29         if (argc != 2 || get_sha1(argv[1], sha1))
30                 usage("git-unpack-file <sha1>");
31
32         puts(create_temp_file(sha1));
33         return 0;
34 }