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v0.5.1
https://github.com/git/git
23 January 2022, 05:21:09 UTC
Revision 7685227e973fce34340d3766b1775263751afa56 authored by Junio C Hamano on 28 March 2007, 22:58:09 UTC, committed by Junio C Hamano on 28 March 2007, 22:58:09 UTC 
GIT 1.5.1-rc3
1 parent 43a8e4f
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Tip revision: 7685227e973fce34340d3766b1775263751afa56 authored by Junio C Hamano on 28 March 2007, 22:58:09 UTC
GIT 1.5.1-rc3
Tip revision: 7685227
unpack-file.c 
#include "cache.h"
#include "blob.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 = mkstemp(path);
	if (fd < 0)
		die("unable to create temp-file");
	if (write_in_full(fd, buf, size) != size)
		die("unable to write temp-file");
	close(fd);
	return path;
}

int main(int argc, char **argv)
{
	unsigned char sha1[20];

	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);

	puts(create_temp_file(sha1));
	return 0;
}
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