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1507301204
"unpack-file -h" could be asking to save the contents of a blob named "-h". Strictly speaking, such a pathological ref name is possible, but the user would have to had said something like "tags/-h" to name such a pathological ref already. When used in scripts, unpack-file is typically not passed a user-supplied tag name directly. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
42 lines
867 B
C
42 lines
867 B
C
#include "cache.h"
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#include "blob.h"
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#include "exec_cmd.h"
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static char *create_temp_file(unsigned char *sha1)
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{
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static char path[50];
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void *buf;
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enum object_type type;
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unsigned long size;
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int fd;
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buf = read_sha1_file(sha1, &type, &size);
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if (!buf || type != OBJ_BLOB)
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die("unable to read blob object %s", sha1_to_hex(sha1));
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strcpy(path, ".merge_file_XXXXXX");
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fd = xmkstemp(path);
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if (write_in_full(fd, buf, size) != size)
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die_errno("unable to write temp-file");
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close(fd);
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return path;
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}
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int main(int argc, char **argv)
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{
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unsigned char sha1[20];
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git_extract_argv0_path(argv[0]);
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if (argc != 2 || !strcmp(argv[1], "-h"))
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usage("git unpack-file <sha1>");
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if (get_sha1(argv[1], sha1))
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die("Not a valid object name %s", argv[1]);
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setup_git_directory();
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git_config(git_default_config, NULL);
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puts(create_temp_file(sha1));
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return 0;
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}
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