Fixed up a few things with reader refactor.

cmd/spicy/main.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"fmt"
 	flag "github.com/ogier/pflag"
 	log "github.com/sirupsen/logrus"
 	"github.com/trhodeos/n64rom"
@@ -95,6 +94,8 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
+	defer f.Close()
+
 	gcc := spicy.NewRunner(*cpp_command)
 	ld := spicy.NewRunner(*ld_command)
 	as := spicy.NewRunner(*as_command)
@@ -106,9 +107,6 @@ func main() {
 	}
 
 	for _, w := range spec.Waves {
-		if err != nil {
-			panic(err)
-		}
 		entry, err := spicy.CreateEntryBinary(w, as)
 		if err != nil {
 			panic(err)
@@ -122,7 +120,7 @@ func main() {
 			panic(err)
 		}
 
-		out, err := os.Create(fmt.Sprintf("%s.n64", *rom_image_file))
+		out, err := os.Create(*rom_image_file)
 		if err != nil {
 			panic(err)
 		}

run.go

@@ -30,6 +30,7 @@ func (e ExecRunner) Run(r io.Reader, args []string) (io.Reader, error) {
 	cmd := exec.Command(e.command, args...)
 	var out bytes.Buffer
 	var errout bytes.Buffer
+	cmd.Stdin = r
 	cmd.Stdout = &out
 	cmd.Stderr = &errout
 	err := cmd.Run()
@@ -76,7 +77,7 @@ func writeTempFile(r io.Reader, prefix string) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	log.Debugln("Writing file for prefix %s to %s", prefix, path)
+	log.Debugf("Writing file for prefix %s to %s", prefix, path)
 	_, err = io.Copy(tmpfile, r)
 	if err != nil {
 		return "", err
@@ -100,7 +101,7 @@ func (e MappedFileRunner) Run(r io.Reader, args []string) (io.Reader, error) {
 			newArgs[i] = args[i]
 		}
 	}
-	_, err := e.runner.Run(r, args)
+	_, err := e.runner.Run(r, newArgs)
 	if err != nil {
 		return nil, err
 	}

spec.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"fmt"
 	"github.com/alecthomas/participle"
+	log "github.com/sirupsen/logrus"
 	"io"
 	"os"
 	"path/filepath"
@@ -261,6 +262,7 @@ func PreprocessSpec(file io.Reader, gcc Runner, includeFlags []string, defineFla
 }
 
 func ParseSpec(r io.Reader) (*Spec, error) {
+	log.Infof("Parsing spec")
 	parser, err := participle.Build(&SpecAst{}, nil)
 	if err != nil {
 		return nil, err
@@ -271,7 +273,11 @@ func ParseSpec(r io.Reader) (*Spec, error) {
 	if err != nil {
 		return nil, err
 	}
-	return convertAstToSpec(*specAst)
+	out, err := convertAstToSpec(*specAst)
+	if err == nil {
+		log.Debugf("Parsed: %v", out)
+	}
+	return out, err
 }
 
 func (w *Wave) checkValidity() error {