// SPDX-License-Identifier: BSD-3-Clause
#include <errno.h>
#include <lib/err.h>
#include <lib/fs.h>
#include <sys/stat.h>

int write_shell(char *package, char *license, int year, char *author, char *m)
{
	fs_write(package, "\
#!/bin/sh\n\
# SPDX-License-Identifier: %s\n\
#\n\
# %s\n\
\n\
me=$0\n\
scriptversion=\"1.0.0\"\n\
\n\
version=\"$me $scriptversion\n\
\n\
Copyright (C) %d %s\n\
This is free software; you are free to change and redistribute it.\n\
There is NO WARRANTY, to  the textent permitted by law.\"\n\
\n\
usage=\"\\\n\
Usage: $me [OPTION]...\n\
%s\n\
\n\
Options:\n\
\n\
   --help     print this help and exit\n\
   --version  output version information\"\n\
\n\
while [ $# -gt 0 ]; do\n\
  case $1 in\n\
    --help) echo \"$usage\"; exit 0;;\n\
    --version) echo \"$version\"; exit 0;;\n\
    -*)\n\
      echo \"$0: Unknwon option '$1'.\" >&2\n\
      echo \"$0: Try '--help' for more information.\" >&2\n\
      exit 1 ;;\n\
  esac\n\
  shift\n\
done\n\
\n\
echo \"$0: done.\"\n\
\n\
# End: %s\
",
		 license, m, year, author, m, package);
	struct stat st;

	if (stat(package, &st) != 0) {
		fatalfa(errno);
	}

	mode_t mode = st.st_mode | S_IXUSR;

	if (chmod(package, mode) != 0) {
		fatalfa(errno);
	}
	return 0;
}