pipe through proc and write to destination

main.go

@@ -1,10 +1,12 @@
 package main
 
 import (
+	"bytes"
 	"flag"
 	"fmt"
 	"log"
 	"os"
+	"os/exec"
 	"path"
 	"path/filepath"
 	"strings"
@@ -82,8 +84,12 @@ func main() {
 		return defaultPermalinkFormat
 	}
 
+	// iterate through file tree source
 	files := make(chan File)
 	go collectFiles(source, files)
+
+	// for each file, get destination path, switch file extension, remove underscore for index
+	var tree FileTree
 	for file := range files {
 		pattern := linkcfg(file.Parent)
 		err := destinationPath(&file, pattern)
@@ -91,19 +97,67 @@ func main() {
 			fmt.Println(err, file)
 			continue
 		}
-		fmt.Printf("%s -> %s (%d)\n", file.Source, file.Destination, len(file.Body))
+		//fmt.Printf("%s -> %s (%d)\n", file.Source, file.Destination, len(file.Body))
+		tree.Files = append(tree.Files, file)
+	}
+
+	// call proc and pipe content through it, catch output of proc
+	for i, file := range tree.Files {
+		// fmt.Printf("%s -> %s (%d)\n", file.Source, file.Destination, len(file.Body))
+		extpipe := exec.Command(processor)
+		buf := bytes.NewReader(file.Body)
+		extpipe.Stdin = buf
+
+		var procout bytes.Buffer
+		extpipe.Stdout = &procout
+
+		extpipe.Start()
+		extpipe.Wait()
+
+		// write to source
+		tree.Files[i].NewBody = procout.Bytes()
+	}
+
+	newpath := filepath.Join(".", "public")
+	err = os.MkdirAll(newpath, os.ModePerm)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// write to destination
+	for _, file := range tree.Files {
+		fmt.Printf("%s -> %s (%d)\n", file.Source, file.Destination, len(file.Body))
+
+		outfile := "index." + ext
+		outdir := filepath.Join(destination, file.Destination)
+		if file.Destination != "index" {
+			newpath := filepath.Join(destination, file.Destination)
+			if err = os.MkdirAll(newpath, os.ModePerm); err != nil {
+				log.Println(err)
+				continue
+			}
+		} else {
+			outdir = destination
+		}
+
+		fullpath := filepath.Join(outdir, outfile)
+		newfile, err := os.Create(fullpath)
+		if err != nil {
+			log.Println(err)
+			continue
+		}
+		fmt.Println(fullpath, string(file.NewBody))
+		newfile.Write(file.NewBody)
+		newfile.Close()
 	}
 
-	// iterate through file tree source
-	// for each file, get destination path, switch file extension, remove underscore for index
-	// call proc and pipe content through it, catch output of proc and write to destination
 	// replace links?
 	// write rss?
 	// write listings from template?
 }
 
 type FileTree struct {
-	Files map[string]*File
+	Files []File
 }
 
 type File struct {
@@ -115,6 +169,7 @@ type File struct {
 	Extension   string
 
 	Body    []byte
+	NewBody []byte
 }
 
 func parse(fullpath string) ([]byte, *Content, error) {
@@ -122,6 +177,8 @@ func parse(fullpath string) ([]byte, *Content, error) {
 	if err != nil {
 		return nil, nil, err
 	}
+	defer file.Close()
+
 	page, err := ReadFrom(file)
 	if err != nil {
 		return nil, nil, err
@@ -131,7 +188,11 @@ func parse(fullpath string) ([]byte, *Content, error) {
 		return nil, nil, err
 	}
 	c := NewContentFromMeta(meta)
-	return append(page.FrontMatter(), page.Content()...), c, nil
+	body := page.FrontMatter()
+	body = append(body, '\n')
+	body = append(body, page.Content()...)
+
+	return body, c, nil
 }
 
 func destinationPath(file *File, pattern string) error {