builtin/merge-file.c: use error_errno()

All these error() calls do not print error message previously, but
because when they are called, errno should be set. Use error_errno()
instead to give more information.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2016-05-08 16:47:29 +07:00 коммит произвёл Junio C Hamano
Родитель 880c0aef0f
Коммит 62f94d54a9
1 изменённых файлов: 5 добавлений и 5 удалений

Просмотреть файл

@ -62,8 +62,7 @@ int cmd_merge_file(int argc, const char **argv, const char *prefix)
usage_with_options(merge_file_usage, options);
if (quiet) {
if (!freopen("/dev/null", "w", stderr))
return error("failed to redirect stderr to /dev/null: "
"%s", strerror(errno));
return error_errno("failed to redirect stderr to /dev/null");
}
if (prefix)
@ -95,12 +94,13 @@ int cmd_merge_file(int argc, const char **argv, const char *prefix)
FILE *f = to_stdout ? stdout : fopen(fpath, "wb");
if (!f)
ret = error("Could not open %s for writing", filename);
ret = error_errno("Could not open %s for writing",
filename);
else if (result.size &&
fwrite(result.ptr, result.size, 1, f) != 1)
ret = error("Could not write to %s", filename);
ret = error_errno("Could not write to %s", filename);
else if (fclose(f))
ret = error("Could not close %s", filename);
ret = error_errno("Could not close %s", filename);
free(result.ptr);
}