From 18bf7ba0238f069162b62e945065e9e6e7ef2fad Mon Sep 17 00:00:00 2001
From: Zahoor Mohamed <zahoor@zahoor.in>
Date: Mon, 16 Jan 2017 13:21:51 +0530
Subject: [PATCH] adding manifest related command file

---
 cmd/swarm/manifest.go | 184 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)
 create mode 100644 cmd/swarm/manifest.go

diff --git a/cmd/swarm/manifest.go b/cmd/swarm/manifest.go
new file mode 100644
index 0000000000..383b0519f9
--- /dev/null
+++ b/cmd/swarm/manifest.go
@@ -0,0 +1,184 @@
+// Copyright 2016 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+// Command  MANIFEST update
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"gopkg.in/urfave/cli.v1"
+	"log"
+	"mime"
+	"path/filepath"
+	"strings"
+)
+
+func add(ctx *cli.Context) {
+
+	args := ctx.Args()
+	if len(args) < 3 {
+		log.Fatal("need atleast three arguments")
+	}
+
+	var (
+		mhash  = args[0]
+		path   = args[1]
+		hash   = args[2]
+
+	)
+
+	updateManifest (ctx, mhash, "add", path, hash)
+}
+
+func update(ctx *cli.Context) {
+
+	args := ctx.Args()
+	if len(args) < 3 {
+		log.Fatal("need atleast three arguments")
+	}
+
+	var (
+		mhash  = args[0]
+		path   = args[1]
+		hash   = args[2]
+
+	)
+
+	updateManifest (ctx, mhash, "update", path, hash)
+}
+
+func remove(ctx *cli.Context) {
+	args := ctx.Args()
+	if len(args) < 2 {
+		log.Fatal("need atleast two arguments")
+	}
+
+	var (
+		mhash  = args[0]
+		path   = args[1]
+
+	)
+
+	updateManifest (ctx, mhash, "remove", path, "")
+}
+
+
+func updateManifest(ctx *cli.Context, mhash , subcmd, path, hash string) {
+
+	var (
+		bzzapi       = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
+		wantManifest = ctx.GlobalBoolT(SwarmWantManifestFlag.Name)
+		client = &client{api: bzzapi}
+		mroot  manifest
+	)
+
+	/* TODO: check for proper hash
+	if !common.IsHexAddress(mhash) {
+		log.Fatal(mhash, " is not a valid hash")
+	}
+
+	if !common.IsHexAddress(hash) {
+		log.Fatal(hash, " is not a valid hash")
+	}
+	*/
+
+	//mroot, err := client.downloadManifest(mhash)
+	//if err != nil {
+	//	log.Fatalln("manifest download failed:", err)
+	//}
+
+	switch subcmd {
+
+	case "add":
+		for _, entry := range mroot.Entries {
+			if path == entry.Path {
+				log.Fatal(path, "Already present, not adding anything")
+			}
+		}
+
+		newEntry := manifestEntry{
+			Path:        path,
+			Hash:        hash,
+			ContentType: mime.TypeByExtension(filepath.Ext(path)),
+		}
+		mroot.Entries = append(mroot.Entries, newEntry)
+		break
+
+	case "update":
+		foundEntry := bool(false)
+		newMRoot := manifest{}
+		for _, entry := range mroot.Entries {
+			if path == entry.Path {
+				newEntry := manifestEntry{
+					Path:        entry.Path,
+					Hash:        hash,
+					ContentType: entry.ContentType,
+				}
+				foundEntry = true
+				newMRoot.Entries = append(newMRoot.Entries, newEntry)
+			} else {
+				newMRoot.Entries = append(newMRoot.Entries, entry)
+			}
+		}
+
+		if !foundEntry {
+			log.Fatal(path, " Path not present in the Manifest, not setting anything")
+		}
+
+		mroot = newMRoot
+		break
+
+	case "remove":
+
+		foundEntry := bool(false)
+		newMRoot := manifest{}
+		for _, entry := range mroot.Entries {
+			if path != entry.Path {
+				newEntry := manifestEntry{
+					Path:        entry.Path,
+					Hash:        entry.Hash,
+					ContentType: entry.ContentType,
+				}
+				newMRoot.Entries = append(newMRoot.Entries, newEntry)
+			} else {
+				foundEntry = true
+			}
+		}
+
+		if !foundEntry {
+			log.Fatal(path, "Path not present in the Manifest, not removing anything")
+		}
+
+		mroot = newMRoot
+		break
+
+	}
+
+	if !wantManifest {
+		// Print the manifest. This is the only output to stdout.
+		mrootJSON, _ := json.MarshalIndent(mroot, "", "  ")
+		fmt.Println(string(mrootJSON))
+		return
+	}
+
+	newManifestHash, err := client.uploadManifest(mroot)
+	if err != nil {
+		log.Fatalln("manifest upload failed:", err)
+	}
+	fmt.Println(newManifestHash)
+
+}