From fbdb9153aa8fb960f379c88fbf993297dd0e2e4f Mon Sep 17 00:00:00 2001
From: rick <technoweenie@gmail.com>
Date: Fri, 4 Oct 2013 11:19:11 -0600
Subject: [PATCH] remove the clean writers

no longer writing a metadata file
---
 cmd/git-media-clean.go | 18 +++++++++++---
 filters/clean.go       | 25 ++++----------------
 filters/writers.go     | 53 ------------------------------------------
 3 files changed, 20 insertions(+), 76 deletions(-)
 delete mode 100644 filters/writers.go

diff --git a/cmd/git-media-clean.go b/cmd/git-media-clean.go
index 4c29eb4e..b8edce5e 100644
--- a/cmd/git-media-clean.go
+++ b/cmd/git-media-clean.go
@@ -13,8 +13,20 @@ func main() {
 		fmt.Println("Error cleaning asset")
 		panic(err)
 	}
+	defer cleaned.Close()
 
-	writer := cleaned.Writer(os.Stdout)
-	defer writer.Close()
-	gitmedia.Encode(writer, cleaned.Sha)
+	tmpfile := cleaned.File.Name()
+	mediafile := gitmedia.LocalMediaPath(cleaned.Sha)
+	if stat, _ := os.Stat(mediafile); stat != nil {
+		if stat.Size() != cleaned.Size {
+			panic(fmt.Sprintf("Files don't match:\n%s\n%s", mediafile, tmpfile))
+		}
+	} else {
+		if err := os.Rename(tmpfile, mediafile); err != nil {
+			fmt.Printf("Unable to move %s to %s\n", tmpfile, mediafile)
+			panic(err)
+		}
+	}
+
+	gitmedia.Encode(os.Stdout, cleaned.Sha)
 }
diff --git a/filters/clean.go b/filters/clean.go
index 08d1a4a1..5810f651 100644
--- a/filters/clean.go
+++ b/filters/clean.go
@@ -9,6 +9,7 @@ import (
 )
 
 type CleanedAsset struct {
+	Size          int64
 	File          *os.File
 	Sha           string
 	mediafilepath string
@@ -22,27 +23,11 @@ func Clean(reader io.Reader) (*CleanedAsset, error) {
 
 	sha1Hash := sha1.New()
 	writer := io.MultiWriter(sha1Hash, tmp)
-	io.Copy(writer, reader)
+	written, _ := io.Copy(writer, reader)
 
-	return &CleanedAsset{tmp, hex.EncodeToString(sha1Hash.Sum(nil)), ""}, nil
+	return &CleanedAsset{written, tmp, hex.EncodeToString(sha1Hash.Sum(nil)), ""}, nil
 }
 
-func (a *CleanedAsset) Writer(writer io.Writer) io.WriteCloser {
-	if stat := a.Stat(); stat == nil {
-		return NewWriter(a, writer)
-	}
-
-	return NewExistingWriter(a, writer)
-}
-
-func (a *CleanedAsset) Path() string {
-	if len(a.mediafilepath) == 0 {
-		a.mediafilepath = gitmedia.LocalMediaPath(a.Sha)
-	}
-	return a.mediafilepath
-}
-
-func (a *CleanedAsset) Stat() os.FileInfo {
-	stat, _ := os.Stat(a.Path())
-	return stat
+func (a *CleanedAsset) Close() error {
+	return os.Remove(a.File.Name())
 }
diff --git a/filters/writers.go b/filters/writers.go
deleted file mode 100644
index afa76758..00000000
--- a/filters/writers.go
+++ /dev/null
@@ -1,53 +0,0 @@
-package gitmediafilters
-
-import (
-	".."
-	"fmt"
-	"io"
-	"os"
-)
-
-// git media clean writer that outputs the large asset meta data to stdin, and
-// deletes the temp file.  This is used directly if the large asset has been
-// saved to the git media directory already.
-type ExistingWriter struct {
-	tempfile *os.File
-	writer   io.Writer
-}
-
-func NewExistingWriter(cleaned *CleanedAsset, writer io.Writer) *ExistingWriter {
-	return &ExistingWriter{cleaned.File, writer}
-}
-
-func (w *ExistingWriter) Write(buf []byte) (int, error) {
-	return w.writer.Write(buf)
-}
-
-func (w *ExistingWriter) Close() error {
-	return os.Remove(w.tempfile.Name())
-}
-
-type Writer struct {
-	*ExistingWriter
-}
-
-// a git media clean writer that writes the large asset data to the local
-// git media directory.  Also embeds an ExistingWriter.
-func NewWriter(cleaned *CleanedAsset, writer io.Writer) *Writer {
-	mediafile := gitmedia.LocalMediaPath(cleaned.Sha)
-
-	if err := os.Rename(cleaned.File.Name(), mediafile); err != nil {
-		fmt.Printf("Unable to move %s to %s\n", cleaned.File.Name(), mediafile)
-		panic(err)
-	}
-
-	return &Writer{NewExistingWriter(cleaned, writer)}
-}
-
-func (w *Writer) Write(buf []byte) (int, error) {
-	return w.writer.Write(buf)
-}
-
-func (w *Writer) Close() error {
-	return w.ExistingWriter.Close()
-}