static int preprocess()
{
const char* flag = arg_getflag();
while (flag != NULL)
{
if (matches(flag, "--file"))
{
g_filename = arg_getflagarg();
if (g_filename == NULL)
{
puts("** Usage: --file filename");
puts(HELP_MSG);
return 1;
}
}
else if (matches(flag, "--os"))
{
const char* os = arg_getflagarg();
if (os == NULL || !os_set(os))
{
puts("** Usage: --os osname");
puts(HELP_MSG);
return 1;
}
}
else if (matches(flag, "--version"))
{
printf("premake (Premake Build Script Generator) %s\n", VERSION);
}
flag = arg_getflag();
}
return 1;
}
static void buildOptionsTable()
{
const char* flag;
const char* arg;
lua_newtable(L);
arg_reset();
flag = arg_getflag();
while (flag != NULL)
{
if (strncmp(flag, "--", 2) == 0)
flag += 2;
lua_pushstring(L, flag);
/* If the flag has an argument, push that too */
arg = arg_getflagarg();
if (arg != NULL)
lua_pushstring(L, arg);
else
lua_pushboolean(L, 1);
lua_settable(L, -3);
flag = arg_getflag();
}
lua_setglobal(L, "options");
}
int script_docommand(const char* cmd)
{
char buffer[512];
const char* arg;
/* Trim off the leading '--' */
if (strncmp(cmd, "--", 2) == 0)
cmd += 2;
/* Look for a handler */
strcpy(buffer, "do");
strcat(buffer, cmd);
lua_getglobal(L, buffer);
if (!lua_isfunction(L, -1))
{
/* Fall back to the default handler */
lua_getglobal(L, "docommand");
if (!lua_isfunction(L, -1))
{
lua_pop(L, 1);
return 0;
}
}
/* Push the command and arguments onto the stack */
lua_pushstring(L, cmd);
arg = arg_getflagarg();
if (arg != NULL)
lua_pushstring(L, arg);
else
lua_pushnil(L);
lua_call(L, 2, 0);
return 1;
}
static int postprocess()
{
int noScriptWarning = 0;
const char* flag = arg_getflag();
while (flag != NULL)
{
if (g_hasScript && !script_export())
return 0;
if (matches(flag, "--help"))
{
showUsage();
}
else if (matches(flag, "--version"))
{
/* ignore quietly */
}
else if (matches(flag, "--file"))
{
arg_getflagarg();
}
else
{
if (!g_hasScript)
{
if (!noScriptWarning)
{
puts("** No Premake script found!");
noScriptWarning = 1;
}
}
else
{
script_docommand(flag);
}
}
flag = arg_getflag();
}
return 1;
}
