static Pipe mkPipe()
{
Pipe p;
Cmd c;
c = mkCmd(Tnil); // at least one command
// ignore NULL cmds--generated by empty line or error
if ( c == NULL || c == &Empty )
return NULL;
// allocate the pipe structure
p = ckmalloc(sizeof(*p));
p->type = Pout; // set type to Pout until we know differently
p->head = c;
while ( PipeToken(LA) ) {
if ( LA == TpipeErr )
p->type = PoutErr; // reset type
else if(LA == Tpipe)
p->type = Pout; //reset type
if ( c->out != Tnil ) {
printf("Ambiguous output redirect.\n");
// skip to end of command
do {
Next();
} while ( !EndOfInput(LA) );
freeCmd(c);
return NULL;
} else
c->out = p->type == Pout ? Tpipe : TpipeErr;
Next();
c->next = mkCmd(p->type == Pout ? Tpipe : TpipeErr);
if ( c->next == NULL || c->next == &Empty ) {
if ( c->next == &Empty )
printf("Invalid null command.\n");
while ( !EndOfInput(LA) )
Next();
return NULL;
}
c = c->next;
}
// read next pipe on the line
p->next = NULL;
while ( !EndOfInput(LA) ) {
p->next = mkPipe();
if ( !p->next )
break;
}
return p;
} /*---------- End of mkPipe ------------------------------------------------*/
void Engine::run() {
// Environment variables
String documentRoot = getenv("DOCUMENT_ROOT");
String requestUri = getenv("REQUEST_URI");
// Build resource filename
String resourceFilename;
resourceFilename << documentRoot << "/www" << requestUri << ".kraft";
// Build output source filename
String outputSrcFilename;
outputSrcFilename << documentRoot << "/src/www" << requestUri << ".cpp";
// Build output binary filename
String outputBinFilename;
outputBinFilename << documentRoot << "/bin/www" << requestUri;
// Parse resource
resources::XmlResourceParser parser;
parser.parseFile(resourceFilename);
// Generate resource source code
String source = parser.generateSource();
if (source.length() < 1) return;
// Make source directories
String parentSrcFolder = server::File::getParentFolder(outputSrcFilename);
String mkCmd("mkdir -p ");
mkCmd << parentSrcFolder;
system(mkCmd.toChars());
// Write source file
server::File outputSrcFile;
outputSrcFile.openWrite(outputSrcFilename, false);
outputSrcFile << source;
outputSrcFile.close();
// Make binary directories
String parentBinFolder = server::File::getParentFolder(outputBinFilename);
mkCmd = "mkdir -p ";
mkCmd << parentBinFolder;
system(mkCmd.toChars());
// Make binaries
String binCmd("g++ -Wall");
binCmd << " -L" << documentRoot << "/bin";
binCmd << " -I" << documentRoot << "/include";
binCmd << " -o " << outputBinFilename;
binCmd << " " << outputSrcFilename;
binCmd << " -lkrafter -lkrafter-site";
system(binCmd.toChars());
// Run compiled binary
if (server::File::exists(outputBinFilename)) {
std::cout << server::File::execute(outputBinFilename).toChars();
}
}
