From eeb8f61dd3156f847e99e406acbe61e68ffebc4c Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <brad@danga.com>
Date: Mon, 19 Jan 2015 15:04:54 -0800
Subject: [PATCH] client: make Fetch return os.ErrNotExist on 404, per
 blob.Fetcher contract

Change-Id: I8a554c6facb34f2257e3e6035030e404a051ec50
---
 pkg/client/get.go | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/pkg/client/get.go b/pkg/client/get.go
index 8d5c0512f..dbb6f43a9 100644
--- a/pkg/client/get.go
+++ b/pkg/client/get.go
@@ -22,6 +22,8 @@ import (
 	"fmt"
 	"io"
 	"math"
+	"net/http"
+	"os"
 	"regexp"
 
 	"camlistore.org/pkg/blob"
@@ -103,8 +105,11 @@ func (c *Client) FetchVia(b blob.Ref, v []blob.Ref) (body io.ReadCloser, size ui
 			resp.Body.Close()
 		}
 	}()
-
-	if resp.StatusCode != 200 {
+	if resp.StatusCode == http.StatusNotFound {
+		// Per blob.Fetcher contract:
+		return nil, 0, os.ErrNotExist
+	}
+	if resp.StatusCode != http.StatusOK {
 		return nil, 0, fmt.Errorf("Got status code %d from blobserver for %s", resp.StatusCode, b)
 	}