Unbreak build script

synch -> sync

.gitignore

@@ -1,3 +1,3 @@
 syncthing
 *.tar.gz
-build
+dist

README.md

@@ -25,150 +25,11 @@ making sure large swarms of selfish agents behave and somehow work
 towards a common goal. Here we have a much smaller swarm of cooperative
 agents and a simpler approach will suffice.
 
-Features
---------
+Documentation
+=============
 
-The following features are _currently implemented and working_:
-
- * The formation of a cluster of nodes, certificate authenticated and
-   communicating over TLS over TCP.
-
- * Synchronization of a single directory among the cluster nodes.
-
- * Change detection by periodic scanning of the local repository.
-
- * Static configuration of cluster nodes.
-
- * Automatic discovery of cluster nodes. See [discover.go][discover.go]
-   for the protocol specification. Discovery on the LAN is performed by
-   broadcasts, Internet wide discovery is performed with the assistance
-   of a global server.
-
- * Handling of deleted files. Deletes can be propagated or ignored per
-   client.
-
- * Synchronizing multiple unrelated directory trees by following
-   symlinks directly below the repository level.
-
-The following features are _not yet implemented but planned_:
-
- * Change detection by listening to file system notifications instead of
-   periodic scanning.
-
- * HTTP GUI.
-
-The following features are _not implemented but may be implemented_ in
-the future:
-
- * Syncing multiple directories from the same syncthing instance.
-
- * Automatic NAT handling via UPNP.
-
- * Conflict resolution. Currently whichever file has the newest
-   modification time "wins". The correct behavior in the face of
-   conflicts is open for discussion.
-
-[discover.go]: (https://github.com/calmh/syncthing/blob/master/discover/discover.go
-
-Security
---------
-
-Security is one of the primary project goals. This means that it should
-not be possible for an attacker to join a cluster uninvited, and it
-should not be possible to extract private information from intercepted
-traffic. Currently this is implemented as follows.
-
-All traffic is protected by TLS. To prevent uninvited nodes from joining
-a cluster, the certificate fingerprint of each node is compared to a
-preset list of acceptable nodes at connection establishment. The
-fingerprint is computed as the SHA-1 hash of the certificate and
-displayed in BASE32 encoding to form a compact yet convenient string.
-Currently SHA-1 is deemed secure against preimage attacks.
-
-Installing
-==========
-
-Download the appropriate precompiled binary from the
-[releases](https://github.com/calmh/syncthing/releases) page. Untar and
-put the `syncthing` binary somewhere convenient in your `$PATH`.
-
-If you are a developer and have Go 1.2 installed you can also install
-the latest version from source:
-
-`go get github.com/calmh/syncthing`
-
-Usage
-=====
-
-Check out the options:
-
-```
-$ syncthing --help
-Usage:
-  syncthing [options]
-
-...
-```
-
-Run syncthing to let it create it's config directory and certificate:
-
-```
-$ syncthing
-11:34:13 main.go:85: INFO: Version v0.1-40-gbb0fd87
-11:34:13 tls.go:61: OK: Created TLS certificate file
-11:34:13 tls.go:67: OK: Created TLS key file
-11:34:13 main.go:66: INFO: My ID: NCTBZAAHXR6ZZP3D7SL3DLYFFQERMW4Q
-11:34:13 main.go:90: FATAL: No config file
-```
-
-Take note of the "My ID: ..." line. Perform the same operation on
-another computer to create another node. Take note of that ID as well,
-and create a config file `~/.syncthing/syncthing.ini` looking something
-like this:
-
-```
-[repository]
-dir = /Users/jb/Synced
-
-[nodes]
-NCTBZAAHXR6ZZP3D7SL3DLYFFQERMW4Q = 172.16.32.1:22000 192.23.34.56:22000
-CUGAE43Y5N64CRJU26YFH6MTWPSBLSUL = dynamic
-```
-
-This assumes that the first node is reachable on either of the two
-addresses listed (perhaps one internal and one port-forwarded external)
-and that the other node is not normally reachable from the outside. Save
-this config file, identically, to both nodes.
-
-If the nodes are running on the same network, or reachable on port 22000
-from the outside world, you can set all addresses to "dynamic" and they
-will find each other using automatic discovery. (This discovery,
-including port numbers, can be tweaked or disabled using command line
-options.)
-
-Start syncthing on both nodes. For the cautious, one side can be set to
-be read only.
-
-```
-$ syncthing --ro
-13:30:55 main.go:85: INFO: Version v0.1-40-gbb0fd87
-13:30:55 main.go:102: INFO: My ID: NCTBZAAHXR6ZZP3D7SL3DLYFFQERMW4Q
-13:30:55 main.go:149: INFO: Initial repository scan in progress
-13:30:59 main.go:153: INFO: Listening for incoming connections
-13:30:59 main.go:157: INFO: Attempting to connect to other nodes
-13:30:59 main.go:247: INFO: Starting local discovery
-13:30:59 main.go:165: OK: Ready to synchronize
-13:31:04 discover.go:113: INFO: Discovered node CUGAE43Y5N64CRJU26YFH6MTWPSBLSUL at 172.16.32.24:22000
-13:31:14 main.go:296: INFO: Connected to node CUGAE43Y5N64CRJU26YFH6MTWPSBLSUL
-13:31:19 main.go:345: INFO: Transferred 139 KiB in (14 KiB/s), 139 KiB out (14 KiB/s)
-13:32:20 model.go:94: INFO: CUGAE43Y5N64CRJU26YFH6MTWPSBLSUL: 263.4 KB/s in, 69.1 KB/s out
-13:32:20 model.go:104: INFO:  18289 files,  24.24 GB in cluster
-13:32:20 model.go:111: INFO:  17132 files,  22.39 GB in local repo
-13:32:20 model.go:117: INFO:   1157 files,   1.84 GB to synchronize
-...
-```
-You should see the synchronization start and then finish a short while
-later. Add nodes to taste.
+The syncthing documentation is kept on the
+[GitHub Wiki](https://github.com/calmh/syncthing/wiki).
 
 License
 =======

build.sh

@@ -1,39 +1,56 @@
 #!/bin/bash
 
 version=$(git describe --always)
+buildDir=dist
 
-go test ./... || exit 1
+if [[ -z $1 ]] ; then
+	go test ./...
+	go build -ldflags "-X main.Version $version" \
+	&& nrsc syncthing gui
+elif [[ $1 == "tar" ]] ; then
+	go test ./...
+	go build -ldflags "-X main.Version $version" \
+	&& nrsc syncthing gui \
+	&& mkdir syncthing-dist \
+	&& cp syncthing README.md LICENSE syncthing-dist \
+	&& tar zcvf syncthing-dist.tar.gz syncthing-dist \
+	&& rm -rf syncthing-dist
+else
+	go test ./... || exit 1
 
-rm -rf build
-mkdir -p build || exit 1
+	rm -rf "$buildDir"
+	mkdir -p "$buildDir" || exit 1
 
-for goos in darwin linux freebsd ; do
-	for goarch in amd64 386 ; do
-		echo "$goos-$goarch"
-		export GOOS="$goos"
-		export GOARCH="$goarch"
-		export name="syncthing-$goos-$goarch"
-		go build -ldflags "-X main.Version $version" \
-		&& mkdir -p "$name" \
-		&& cp syncthing "build/$name" \
-		&& cp README.md LICENSE "$name" \
-		&& mv syncthing "$name" \
-		&& tar zcf "build/$name.tar.gz" "$name" \
-		&& rm -r  "$name"
+	for goos in darwin linux freebsd ; do
+		for goarch in amd64 386 ; do
+			echo "$goos-$goarch"
+			export GOOS="$goos"
+			export GOARCH="$goarch"
+			export name="syncthing-$goos-$goarch"
+			go build -ldflags "-X main.Version $version" \
+				&& nrsc syncthing gui \
+				&& mkdir -p "$name" \
+				&& cp syncthing "$buildDir/$name" \
+				&& cp README.md LICENSE "$name" \
+				&& mv syncthing "$name" \
+				&& tar zcf "$buildDir/$name.tar.gz" "$name" \
+				&& rm -r  "$name"
+		done
 	done
-done
 
-for goos in windows ; do
-	for goarch in amd64 386 ; do
-		echo "$goos-$goarch"
-		export GOOS="$goos"
-		export GOARCH="$goarch"
-		export name="syncthing-$goos-$goarch"
-		go build -ldflags "-X main.Version $version" \
-		&& mkdir -p "$name" \
-		&& cp syncthing.exe "build/$name.exe" \
-		&& cp README.md LICENSE "$name" \
-		&& zip -qr "build/$name.zip" "$name" \
-		&& rm -r  "$name"
+	for goos in windows ; do
+		for goarch in amd64 386 ; do
+			echo "$goos-$goarch"
+			export GOOS="$goos"
+			export GOARCH="$goarch"
+			export name="syncthing-$goos-$goarch"
+			go build -ldflags "-X main.Version $version" \
+				&& nrsc syncthing.exe gui \
+				&& mkdir -p "$name" \
+				&& mv syncthing.exe "$buildDir/$name.exe" \
+				&& cp README.md LICENSE "$name" \
+				&& zip -qr "$buildDir/$name.zip" "$name" \
+				&& rm -r  "$name"
+		done
 	done
-done
+fi

gui.go

@@ -0,0 +1,132 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"mime"
+	"net/http"
+	"path/filepath"
+
+	"bitbucket.org/tebeka/nrsc"
+	"github.com/calmh/syncthing/model"
+	"github.com/codegangsta/martini"
+)
+
+func startGUI(addr string, m *model.Model) {
+	router := martini.NewRouter()
+	router.Get("/", getRoot)
+	router.Get("/rest/version", restGetVersion)
+	router.Get("/rest/model", restGetModel)
+	router.Get("/rest/connections", restGetConnections)
+	router.Get("/rest/config", restGetConfig)
+	router.Get("/rest/need", restGetNeed)
+
+	go func() {
+		mr := martini.New()
+		mr.Use(nrscStatic("gui"))
+		mr.Use(martini.Recovery())
+		mr.Action(router.Handle)
+		mr.Map(m)
+		http.ListenAndServe(addr, mr)
+	}()
+}
+
+func getRoot(w http.ResponseWriter, r *http.Request) {
+	http.Redirect(w, r, "/index.html", 302)
+}
+
+func restGetVersion() string {
+	return Version
+}
+
+func restGetModel(m *model.Model, w http.ResponseWriter) {
+	var res = make(map[string]interface{})
+
+	globalFiles, globalDeleted, globalBytes := m.GlobalSize()
+	res["globalFiles"], res["globalDeleted"], res["globalBytes"] = globalFiles, globalDeleted, globalBytes
+
+	localFiles, localDeleted, localBytes := m.LocalSize()
+	res["localFiles"], res["localDeleted"], res["localBytes"] = localFiles, localDeleted, localBytes
+
+	inSyncFiles, inSyncBytes := m.InSyncSize()
+	res["inSyncFiles"], res["inSyncBytes"] = inSyncFiles, inSyncBytes
+
+	files, total := m.NeedFiles()
+	res["needFiles"], res["needBytes"] = len(files), total
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(res)
+}
+
+func restGetConnections(m *model.Model, w http.ResponseWriter) {
+	var res = m.ConnectionStats()
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(res)
+}
+
+func restGetConfig(w http.ResponseWriter) {
+	var res = make(map[string]interface{})
+	res["repository"] = config.OptionMap("repository")
+	res["nodes"] = config.OptionMap("nodes")
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(res)
+}
+
+type guiFile model.File
+
+func (f guiFile) MarshalJSON() ([]byte, error) {
+	type t struct {
+		Name string
+		Size int
+	}
+	return json.Marshal(t{
+		Name: f.Name,
+		Size: model.File(f).Size(),
+	})
+}
+
+func restGetNeed(m *model.Model, w http.ResponseWriter) {
+	files, _ := m.NeedFiles()
+	gfs := make([]guiFile, len(files))
+	for i, f := range files {
+		gfs[i] = guiFile(f)
+	}
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(gfs)
+}
+
+func nrscStatic(path string) interface{} {
+	if err := nrsc.Initialize(); err != nil {
+		panic("Unable to initialize nrsc: " + err.Error())
+	}
+	return func(res http.ResponseWriter, req *http.Request, log *log.Logger) {
+		file := req.URL.Path
+
+		// nrsc expects there not to be a leading slash
+		if file[0] == '/' {
+			file = file[1:]
+		}
+
+		f := nrsc.Get(file)
+		if f == nil {
+			return
+		}
+
+		rdr, err := f.Open()
+		if err != nil {
+			http.Error(res, "Internal Server Error", http.StatusInternalServerError)
+		}
+		defer rdr.Close()
+
+		mtype := mime.TypeByExtension(filepath.Ext(req.URL.Path))
+		if len(mtype) != 0 {
+			res.Header().Set("Content-Type", mtype)
+		}
+		res.Header().Set("Content-Size", fmt.Sprintf("%d", f.Size()))
+		res.Header().Set("Last-Modified", f.ModTime().UTC().Format(http.TimeFormat))
+
+		io.Copy(res, rdr)
+	}
+}

gui/angular.min.js

@@ -0,0 +1,203 @@
+/*
+ AngularJS v1.2.7
+ (c) 2010-2014 Google, Inc. http://angularjs.org
+ License: MIT
+*/
+(function(Z,Q,r){'use strict';function F(b){return function(){var a=arguments[0],c,a="["+(b?b+":":"")+a+"] http://errors.angularjs.org/1.2.7/"+(b?b+"/":"")+a;for(c=1;c<arguments.length;c++)a=a+(1==c?"?":"&")+"p"+(c-1)+"="+encodeURIComponent("function"==typeof arguments[c]?arguments[c].toString().replace(/ \{[\s\S]*$/,""):"undefined"==typeof arguments[c]?"undefined":"string"!=typeof arguments[c]?JSON.stringify(arguments[c]):arguments[c]);return Error(a)}}function qb(b){if(null==b||za(b))return!1;var a=
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+function(){this.cases={}}],link:function(c,d,e,g){var f,h,m=[];c.$watch(e.ngSwitch||e.on,function(d){for(var l=0,n=m.length;l<n;l++)m[l].$destroy(),a.leave(h[l]);h=[];m=[];if(f=g.cases["!"+d]||g.cases["?"])c.$eval(e.change),q(f,function(d){var e=c.$new();m.push(e);d.transclude(e,function(c){var e=d.element;h.push(c);a.enter(c,e.parent(),e)})})})}}}],Ae=ta({transclude:"element",priority:800,require:"^ngSwitch",compile:function(a,c){return function(a,e,g,f,h){f.cases["!"+c.ngSwitchWhen]=f.cases["!"+
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+compile:function(c,d){"text/ng-template"==d.type&&a.put(d.id,c[0].text)}}}],Ee=F("ngOptions"),Fe=$({terminal:!0}),Ge=["$compile","$parse",function(a,c){var d=/^\s*(.*?)(?:\s+as\s+(.*?))?(?:\s+group\s+by\s+(.*))?\s+for\s+(?:([\$\w][\$\w]*)|(?:\(\s*([\$\w][\$\w]*)\s*,\s*([\$\w][\$\w]*)\s*\)))\s+in\s+(.*?)(?:\s+track\s+by\s+(.*?))?$/,e={$setViewValue:w};return{restrict:"E",require:["select","?ngModel"],controller:["$element","$scope","$attrs",function(a,c,d){var m=this,k={},l=e,n;m.databound=d.ngModel;
+m.init=function(a,c,d){l=a;n=d};m.addOption=function(c){xa(c,'"option value"');k[c]=!0;l.$viewValue==c&&(a.val(c),n.parent()&&n.remove())};m.removeOption=function(a){this.hasOption(a)&&(delete k[a],l.$viewValue==a&&this.renderUnknownOption(a))};m.renderUnknownOption=function(c){c="? "+Da(c)+" ?";n.val(c);a.prepend(n);a.val(c);n.prop("selected",!0)};m.hasOption=function(a){return k.hasOwnProperty(a)};c.$on("$destroy",function(){m.renderUnknownOption=w})}],link:function(e,f,h,m){function k(a,c,d,e){d.$render=
+function(){var a=d.$viewValue;e.hasOption(a)?(x.parent()&&x.remove(),c.val(a),""===a&&w.prop("selected",!0)):z(a)&&w?c.val(""):e.renderUnknownOption(a)};c.on("change",function(){a.$apply(function(){x.parent()&&x.remove();d.$setViewValue(c.val())})})}function l(a,c,d){var e;d.$render=function(){var a=new Ra(d.$viewValue);q(c.find("option"),function(c){c.selected=B(a.get(c.value))})};a.$watch(function(){ua(e,d.$viewValue)||(e=fa(d.$viewValue),d.$render())});c.on("change",function(){a.$apply(function(){var a=
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+E.text(d.label=r.label),d.id!==r.id&&E.val(d.id=r.id),E[0].selected!==r.selected&&E.prop("selected",d.selected=r.selected)):(""===r.id&&y?H=y:(H=u.clone()).val(r.id).attr("selected",r.selected).text(r.label),v.push({element:H,label:r.label,id:r.id,selected:r.selected}),E?E.after(H):t.element.append(H),E=H);for(z++;v.length>z;)v.pop().element.remove()}for(;x.length>I;)x.pop()[0].element.remove()}var k;if(!(k=t.match(d)))throw Ee("iexp",t,ga(f));var m=c(k[2]||k[1]),l=k[4]||k[6],n=k[5],p=c(k[3]||""),
+q=c(k[2]?k[1]:l),A=c(k[7]),w=k[8]?c(k[8]):null,x=[[{element:f,label:""}]];y&&(a(y)(e),y.removeClass("ng-scope"),y.remove());f.empty();f.on("change",function(){e.$apply(function(){var a,c=A(e)||[],d={},h,k,m,p,t,u,v;if(s)for(k=[],p=0,u=x.length;p<u;p++)for(a=x[p],m=1,t=a.length;m<t;m++){if((h=a[m].element)[0].selected){h=h.val();n&&(d[n]=h);if(w)for(v=0;v<c.length&&(d[l]=c[v],w(e,d)!=h);v++);else d[l]=c[h];k.push(q(e,d))}}else if(h=f.val(),"?"==h)k=r;else if(""===h)k=null;else if(w)for(v=0;v<c.length;v++){if(d[l]=
+c[v],w(e,d)==h){k=q(e,d);break}}else d[l]=c[h],n&&(d[n]=h),k=q(e,d);g.$setViewValue(k)})});g.$render=h;e.$watch(h)}if(m[1]){var p=m[0];m=m[1];var s=h.multiple,t=h.ngOptions,y=!1,w,u=A(Q.createElement("option")),D=A(Q.createElement("optgroup")),x=u.clone();h=0;for(var v=f.children(),F=v.length;h<F;h++)if(""===v[h].value){w=y=v.eq(h);break}p.init(m,y,x);s&&(m.$isEmpty=function(a){return!a||0===a.length});t?n(e,f,m):s?l(e,f,m):k(e,f,m,p)}}}}],He=["$interpolate",function(a){var c={addOption:w,removeOption:w};
+return{restrict:"E",priority:100,compile:function(d,e){if(z(e.value)){var g=a(d.text(),!0);g||e.$set("value",d.text())}return function(a,d,e){var k=d.parent(),l=k.data("$selectController")||k.parent().data("$selectController");l&&l.databound?d.prop("selected",!1):l=c;g?a.$watch(g,function(a,c){e.$set("value",a);a!==c&&l.removeOption(c);l.addOption(a)}):l.addOption(e.value);d.on("$destroy",function(){l.removeOption(e.value)})}}}}],Ie=$({restrict:"E",terminal:!0});(Ba=Z.jQuery)?(A=Ba,t(Ba.fn,{scope:Ea.scope,
+isolateScope:Ea.isolateScope,controller:Ea.controller,injector:Ea.injector,inheritedData:Ea.inheritedData}),wb("remove",!0,!0,!1),wb("empty",!1,!1,!1),wb("html",!1,!1,!0)):A=O;Na.element=A;(function(a){t(a,{bootstrap:Yb,copy:fa,extend:t,equals:ua,element:A,forEach:q,injector:Zb,noop:w,bind:bb,toJson:pa,fromJson:Ub,identity:Aa,isUndefined:z,isDefined:B,isString:D,isFunction:L,isObject:X,isNumber:rb,isElement:Pc,isArray:K,version:Rd,isDate:Ja,lowercase:x,uppercase:Ga,callbacks:{counter:0},$$minErr:F,
+$$csp:Tb});Ta=Uc(Z);try{Ta("ngLocale")}catch(c){Ta("ngLocale",[]).provider("$locale",rd)}Ta("ng",["ngLocale"],["$provide",function(a){a.provider({$$sanitizeUri:Bd});a.provider("$compile",ic).directive({a:Wd,input:Lc,textarea:Lc,form:Xd,script:De,select:Ge,style:Ie,option:He,ngBind:he,ngBindHtml:je,ngBindTemplate:ie,ngClass:ke,ngClassEven:me,ngClassOdd:le,ngCloak:ne,ngController:oe,ngForm:Yd,ngHide:xe,ngIf:pe,ngInclude:qe,ngInit:se,ngNonBindable:te,ngPluralize:ue,ngRepeat:ve,ngShow:we,ngStyle:ye,ngSwitch:ze,
+ngSwitchWhen:Ae,ngSwitchDefault:Be,ngOptions:Fe,ngTransclude:Ce,ngModel:ce,ngList:ee,ngChange:de,required:Mc,ngRequired:Mc,ngValue:ge}).directive({ngInclude:re}).directive(Nb).directive(Nc);a.provider({$anchorScroll:cd,$animate:Td,$browser:ed,$cacheFactory:fd,$controller:id,$document:jd,$exceptionHandler:kd,$filter:Ac,$interpolate:pd,$interval:qd,$http:ld,$httpBackend:nd,$location:td,$log:ud,$parse:xd,$rootScope:Ad,$q:yd,$sce:Ed,$sceDelegate:Dd,$sniffer:Fd,$templateCache:gd,$timeout:Gd,$window:Hd})}])})(Na);
+A(Q).ready(function(){Sc(Q,Yb)})})(window,document);!angular.$$csp()&&angular.element(document).find("head").prepend('<style type="text/css">@charset "UTF-8";[ng\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide{display:none !important;}ng\\:form{display:block;}</style>');
+//# sourceMappingURL=angular.min.js.map

gui/app.js

@@ -0,0 +1,121 @@
+var syncthing = angular.module('syncthing', []);
+
+syncthing.controller('SyncthingCtrl', function ($scope, $http) {
+    $http.get("/rest/version").success(function (data) {
+        $scope.version = data;
+    });
+    $http.get("/rest/config").success(function (data) {
+        $scope.config = data;
+    });
+    
+    var prevDate = 0;
+
+    $scope.refresh = function () {
+        $http.get("/rest/model").success(function (data) {
+            $scope.model = data;
+        });
+        $http.get("/rest/connections").success(function (data) {
+            var now = Date.now();
+            var td = (now - prevDate) / 1000;
+            prevDate = now;
+
+            for (var id in data) {
+                try {
+                    data[id].inbps = 8 * (data[id].InBytesTotal - $scope.connections[id].InBytesTotal) / td;
+                    data[id].outbps = 8 * (data[id].OutBytesTotal - $scope.connections[id].OutBytesTotal) / td;
+                } catch (e) {
+                    data[id].inbps = 0;
+                    data[id].outbps = 0;
+                }
+            }
+            $scope.connections = data;
+        });
+        $http.get("/rest/need").success(function (data) {
+            var i, name;
+            for (i = 0; i < data.length; i++) {
+                name = data[i].Name.split("/");
+                data[i].ShortName = name[name.length-1];
+            }
+            data.sort(function (a, b) {
+                if (a.ShortName < b.ShortName) {
+                    return -1;
+                }
+                if (a.ShortName > b.ShortName) {
+                    return 1;
+                }
+                return 0;
+            });
+            $scope.need = data;
+        });
+    };
+
+    $scope.refresh();
+    setInterval($scope.refresh, 10000);
+});
+
+function decimals(num) {
+    if (num > 100) {
+        return 0;
+    }
+    if (num > 10) {
+        return 1;
+    }
+    return 2;
+}
+
+syncthing.filter('binary', function() {
+    return function(input) {
+        if (input === undefined) {
+            return '- '
+        }
+        if (input > 1024 * 1024 * 1024) {
+            input /= 1024 * 1024 * 1024;
+            return input.toFixed(decimals(input)) + ' Gi';
+        }
+        if (input > 1024 * 1024) {
+            input /= 1024 * 1024;
+            return input.toFixed(decimals(input)) + ' Mi';
+        }
+        if (input > 1024) {
+            input /= 1024;
+            return input.toFixed(decimals(input)) + ' Ki';
+        }
+        return Math.round(input) + ' ';
+    }
+});
+
+syncthing.filter('metric', function() {
+    return function(input) {
+        if (input === undefined) {
+            return '- '
+        }
+        if (input > 1000 * 1000 * 1000) {
+            input /= 1000 * 1000 * 1000;
+            return input.toFixed(decimals(input)) + ' G';
+        }
+        if (input > 1000 * 1000) {
+            input /= 1000 * 1000;
+            return input.toFixed(decimals(input)) + ' M';
+        }
+        if (input > 1000) {
+            input /= 1000;
+            return input.toFixed(decimals(input)) + ' k';
+        }
+        return Math.round(input) + ' ';
+    }
+});
+
+syncthing.filter('short', function() {
+    return function(input) {
+        return input.substr(0, 6);
+    }
+});
+
+syncthing.filter('alwaysNumber', function() {
+    return function(input) {
+        if (input === undefined) {
+            return 0;
+        }
+        return input;
+    }
+});

gui/bootstrap/css/bootstrap-theme.css

@@ -0,0 +1,397 @@
+/*!
+ * Bootstrap v3.0.3 (http://getbootstrap.com)
+ * Copyright 2013 Twitter, Inc.
+ * Licensed under http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+.btn-default,
+.btn-primary,
+.btn-success,
+.btn-info,
+.btn-warning,
+.btn-danger {
+  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.2);
+  -webkit-box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 1px 1px rgba(0, 0, 0, 0.075);
+          box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 1px 1px rgba(0, 0, 0, 0.075);
+}
+
+.btn-default:active,
+.btn-primary:active,
+.btn-success:active,
+.btn-info:active,
+.btn-warning:active,
+.btn-danger:active,
+.btn-default.active,
+.btn-primary.active,
+.btn-success.active,
+.btn-info.active,
+.btn-warning.active,
+.btn-danger.active {
+  -webkit-box-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
+          box-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
+}
+
+.btn:active,
+.btn.active {
+  background-image: none;
+}
+
+.btn-default {
+  text-shadow: 0 1px 0 #fff;
+  background-image: -webkit-linear-gradient(top, #ffffff 0%, #e0e0e0 100%);
+  background-image: linear-gradient(to bottom, #ffffff 0%, #e0e0e0 100%);
+  background-repeat: repeat-x;
+  border-color: #dbdbdb;
+  border-color: #ccc;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffffff', endColorstr='#ffe0e0e0', GradientType=0);
+  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+}
+
+.btn-default:hover,
+.btn-default:focus {
+  background-color: #e0e0e0;
+  background-position: 0 -15px;
+}
+
+.btn-default:active,
+.btn-default.active {
+  background-color: #e0e0e0;
+  border-color: #dbdbdb;
+}
+
+.btn-primary {
+  background-image: -webkit-linear-gradient(top, #428bca 0%, #2d6ca2 100%);
+  background-image: linear-gradient(to bottom, #428bca 0%, #2d6ca2 100%);
+  background-repeat: repeat-x;
+  border-color: #2b669a;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff428bca', endColorstr='#ff2d6ca2', GradientType=0);
+  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+}
+
+.btn-primary:hover,
+.btn-primary:focus {
+  background-color: #2d6ca2;
+  background-position: 0 -15px;
+}
+
+.btn-primary:active,
+.btn-primary.active {
+  background-color: #2d6ca2;
+  border-color: #2b669a;
+}
+
+.btn-success {
+  background-image: -webkit-linear-gradient(top, #5cb85c 0%, #419641 100%);
+  background-image: linear-gradient(to bottom, #5cb85c 0%, #419641 100%);
+  background-repeat: repeat-x;
+  border-color: #3e8f3e;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff5cb85c', endColorstr='#ff419641', GradientType=0);
+  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+}
+
+.btn-success:hover,
+.btn-success:focus {
+  background-color: #419641;
+  background-position: 0 -15px;
+}
+
+.btn-success:active,
+.btn-success.active {
+  background-color: #419641;
+  border-color: #3e8f3e;
+}
+
+.btn-warning {
+  background-image: -webkit-linear-gradient(top, #f0ad4e 0%, #eb9316 100%);
+  background-image: linear-gradient(to bottom, #f0ad4e 0%, #eb9316 100%);
+  background-repeat: repeat-x;
+  border-color: #e38d13;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fff0ad4e', endColorstr='#ffeb9316', GradientType=0);
+  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+}
+
+.btn-warning:hover,
+.btn-warning:focus {
+  background-color: #eb9316;
+  background-position: 0 -15px;
+}
+
+.btn-warning:active,
+.btn-warning.active {
+  background-color: #eb9316;
+  border-color: #e38d13;
+}
+
+.btn-danger {
+  background-image: -webkit-linear-gradient(top, #d9534f 0%, #c12e2a 100%);
+  background-image: linear-gradient(to bottom, #d9534f 0%, #c12e2a 100%);
+  background-repeat: repeat-x;
+  border-color: #b92c28;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffd9534f', endColorstr='#ffc12e2a', GradientType=0);
+  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+}
+
+.btn-danger:hover,
+.btn-danger:focus {
+  background-color: #c12e2a;
+  background-position: 0 -15px;
+}
+
+.btn-danger:active,
+.btn-danger.active {
+  background-color: #c12e2a;
+  border-color: #b92c28;
+}
+
+.btn-info {
+  background-image: -webkit-linear-gradient(top, #5bc0de 0%, #2aabd2 100%);
+  background-image: linear-gradient(to bottom, #5bc0de 0%, #2aabd2 100%);
+  background-repeat: repeat-x;
+  border-color: #28a4c9;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff5bc0de', endColorstr='#ff2aabd2', GradientType=0);
+  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+}
+
+.btn-info:hover,
+.btn-info:focus {
+  background-color: #2aabd2;
+  background-position: 0 -15px;
+}
+
+.btn-info:active,
+.btn-info.active {
+  background-color: #2aabd2;
+  border-color: #28a4c9;
+}
+
+.thumbnail,
+.img-thumbnail {
+  -webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.075);
+          box-shadow: 0 1px 2px rgba(0, 0, 0, 0.075);
+}
+
+.dropdown-menu > li > a:hover,
+.dropdown-menu > li > a:focus {
+  background-color: #e8e8e8;
+  background-image: -webkit-linear-gradient(top, #f5f5f5 0%, #e8e8e8 100%);
+  background-image: linear-gradient(to bottom, #f5f5f5 0%, #e8e8e8 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fff5f5f5', endColorstr='#ffe8e8e8', GradientType=0);
+}
+
+.dropdown-menu > .active > a,
+.dropdown-menu > .active > a:hover,
+.dropdown-menu > .active > a:focus {
+  background-color: #357ebd;
+  background-image: -webkit-linear-gradient(top, #428bca 0%, #357ebd 100%);
+  background-image: linear-gradient(to bottom, #428bca 0%, #357ebd 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff428bca', endColorstr='#ff357ebd', GradientType=0);
+}
+
+.navbar-default {
+  background-image: -webkit-linear-gradient(top, #ffffff 0%, #f8f8f8 100%);
+  background-image: linear-gradient(to bottom, #ffffff 0%, #f8f8f8 100%);
+  background-repeat: repeat-x;
+  border-radius: 4px;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffffff', endColorstr='#fff8f8f8', GradientType=0);
+  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+  -webkit-box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 1px 5px rgba(0, 0, 0, 0.075);
+          box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 1px 5px rgba(0, 0, 0, 0.075);
+}
+
+.navbar-default .navbar-nav > .active > a {
+  background-image: -webkit-linear-gradient(top, #ebebeb 0%, #f3f3f3 100%);
+  background-image: linear-gradient(to bottom, #ebebeb 0%, #f3f3f3 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffebebeb', endColorstr='#fff3f3f3', GradientType=0);
+  -webkit-box-shadow: inset 0 3px 9px rgba(0, 0, 0, 0.075);
+          box-shadow: inset 0 3px 9px rgba(0, 0, 0, 0.075);
+}
+
+.navbar-brand,
+.navbar-nav > li > a {
+  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.25);
+}
+
+.navbar-inverse {
+  background-image: -webkit-linear-gradient(top, #3c3c3c 0%, #222222 100%);
+  background-image: linear-gradient(to bottom, #3c3c3c 0%, #222222 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff3c3c3c', endColorstr='#ff222222', GradientType=0);
+  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+}
+
+.navbar-inverse .navbar-nav > .active > a {
+  background-image: -webkit-linear-gradient(top, #222222 0%, #282828 100%);
+  background-image: linear-gradient(to bottom, #222222 0%, #282828 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff222222', endColorstr='#ff282828', GradientType=0);
+  -webkit-box-shadow: inset 0 3px 9px rgba(0, 0, 0, 0.25);
+          box-shadow: inset 0 3px 9px rgba(0, 0, 0, 0.25);
+}
+
+.navbar-inverse .navbar-brand,
+.navbar-inverse .navbar-nav > li > a {
+  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
+}
+
+.navbar-static-top,
+.navbar-fixed-top,
+.navbar-fixed-bottom {
+  border-radius: 0;
+}
+
+.alert {
+  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.2);
+  -webkit-box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 1px 2px rgba(0, 0, 0, 0.05);
+          box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 1px 2px rgba(0, 0, 0, 0.05);
+}
+
+.alert-success {
+  background-image: -webkit-linear-gradient(top, #dff0d8 0%, #c8e5bc 100%);
+  background-image: linear-gradient(to bottom, #dff0d8 0%, #c8e5bc 100%);
+  background-repeat: repeat-x;
+  border-color: #b2dba1;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffdff0d8', endColorstr='#ffc8e5bc', GradientType=0);
+}
+
+.alert-info {
+  background-image: -webkit-linear-gradient(top, #d9edf7 0%, #b9def0 100%);
+  background-image: linear-gradient(to bottom, #d9edf7 0%, #b9def0 100%);
+  background-repeat: repeat-x;
+  border-color: #9acfea;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffd9edf7', endColorstr='#ffb9def0', GradientType=0);
+}
+
+.alert-warning {
+  background-image: -webkit-linear-gradient(top, #fcf8e3 0%, #f8efc0 100%);
+  background-image: linear-gradient(to bottom, #fcf8e3 0%, #f8efc0 100%);
+  background-repeat: repeat-x;
+  border-color: #f5e79e;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fffcf8e3', endColorstr='#fff8efc0', GradientType=0);
+}
+
+.alert-danger {
+  background-image: -webkit-linear-gradient(top, #f2dede 0%, #e7c3c3 100%);
+  background-image: linear-gradient(to bottom, #f2dede 0%, #e7c3c3 100%);
+  background-repeat: repeat-x;
+  border-color: #dca7a7;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fff2dede', endColorstr='#ffe7c3c3', GradientType=0);
+}
+
+.progress {
+  background-image: -webkit-linear-gradient(top, #ebebeb 0%, #f5f5f5 100%);
+  background-image: linear-gradient(to bottom, #ebebeb 0%, #f5f5f5 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffebebeb', endColorstr='#fff5f5f5', GradientType=0);
+}
+
+.progress-bar {
+  background-image: -webkit-linear-gradient(top, #428bca 0%, #3071a9 100%);
+  background-image: linear-gradient(to bottom, #428bca 0%, #3071a9 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff428bca', endColorstr='#ff3071a9', GradientType=0);
+}
+
+.progress-bar-success {
+  background-image: -webkit-linear-gradient(top, #5cb85c 0%, #449d44 100%);
+  background-image: linear-gradient(to bottom, #5cb85c 0%, #449d44 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff5cb85c', endColorstr='#ff449d44', GradientType=0);
+}
+
+.progress-bar-info {
+  background-image: -webkit-linear-gradient(top, #5bc0de 0%, #31b0d5 100%);
+  background-image: linear-gradient(to bottom, #5bc0de 0%, #31b0d5 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff5bc0de', endColorstr='#ff31b0d5', GradientType=0);
+}
+
+.progress-bar-warning {
+  background-image: -webkit-linear-gradient(top, #f0ad4e 0%, #ec971f 100%);
+  background-image: linear-gradient(to bottom, #f0ad4e 0%, #ec971f 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fff0ad4e', endColorstr='#ffec971f', GradientType=0);
+}
+
+.progress-bar-danger {
+  background-image: -webkit-linear-gradient(top, #d9534f 0%, #c9302c 100%);
+  background-image: linear-gradient(to bottom, #d9534f 0%, #c9302c 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffd9534f', endColorstr='#ffc9302c', GradientType=0);
+}
+
+.list-group {
+  border-radius: 4px;
+  -webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.075);
+          box-shadow: 0 1px 2px rgba(0, 0, 0, 0.075);
+}
+
+.list-group-item.active,
+.list-group-item.active:hover,
+.list-group-item.active:focus {
+  text-shadow: 0 -1px 0 #3071a9;
+  background-image: -webkit-linear-gradient(top, #428bca 0%, #3278b3 100%);
+  background-image: linear-gradient(to bottom, #428bca 0%, #3278b3 100%);
+  background-repeat: repeat-x;
+  border-color: #3278b3;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff428bca', endColorstr='#ff3278b3', GradientType=0);
+}
+
+.panel {
+  -webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
+          box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
+}
+
+.panel-default > .panel-heading {
+  background-image: -webkit-linear-gradient(top, #f5f5f5 0%, #e8e8e8 100%);
+  background-image: linear-gradient(to bottom, #f5f5f5 0%, #e8e8e8 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fff5f5f5', endColorstr='#ffe8e8e8', GradientType=0);
+}
+
+.panel-primary > .panel-heading {
+  background-image: -webkit-linear-gradient(top, #428bca 0%, #357ebd 100%);
+  background-image: linear-gradient(to bottom, #428bca 0%, #357ebd 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff428bca', endColorstr='#ff357ebd', GradientType=0);
+}
+
+.panel-success > .panel-heading {
+  background-image: -webkit-linear-gradient(top, #dff0d8 0%, #d0e9c6 100%);
+  background-image: linear-gradient(to bottom, #dff0d8 0%, #d0e9c6 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffdff0d8', endColorstr='#ffd0e9c6', GradientType=0);
+}
+
+.panel-info > .panel-heading {
+  background-image: -webkit-linear-gradient(top, #d9edf7 0%, #c4e3f3 100%);
+  background-image: linear-gradient(to bottom, #d9edf7 0%, #c4e3f3 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffd9edf7', endColorstr='#ffc4e3f3', GradientType=0);
+}
+
+.panel-warning > .panel-heading {
+  background-image: -webkit-linear-gradient(top, #fcf8e3 0%, #faf2cc 100%);
+  background-image: linear-gradient(to bottom, #fcf8e3 0%, #faf2cc 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fffcf8e3', endColorstr='#fffaf2cc', GradientType=0);
+}
+
+.panel-danger > .panel-heading {
+  background-image: -webkit-linear-gradient(top, #f2dede 0%, #ebcccc 100%);
+  background-image: linear-gradient(to bottom, #f2dede 0%, #ebcccc 100%);
+  background-repeat: repeat-x;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fff2dede', endColorstr='#ffebcccc', GradientType=0);
+}
+
+.well {
+  background-image: -webkit-linear-gradient(top, #e8e8e8 0%, #f5f5f5 100%);
+  background-image: linear-gradient(to bottom, #e8e8e8 0%, #f5f5f5 100%);
+  background-repeat: repeat-x;
+  border-color: #dcdcdc;
+  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffe8e8e8', endColorstr='#fff5f5f5', GradientType=0);
+  -webkit-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 0 rgba(255, 255, 255, 0.1);
+          box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 0 rgba(255, 255, 255, 0.1);
+}

gui/index.html

@@ -0,0 +1,107 @@
+<!DOCTYPE html>
+<html lang="en" ng-app="syncthing">
+<head>
+<meta charset="utf-8">
+<meta http-equiv="X-UA-Compatible" content="IE=edge">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<meta name="description" content="">
+<meta name="author" content="">
+<link rel="shortcut icon" href="../../docs-assets/ico/favicon.png">
+
+<title>syncthing</title>
+<link href="bootstrap/css/bootstrap.css" rel="stylesheet">
+<style type="text/css">
+body {
+    padding-top: 20px;
+    padding-bottom: 20px;
+}
+
+.header {
+    border-bottom: 1px solid #e5e5e5;
+    padding-bottom: 10px;
+}
+
+.text-monospace {
+    font-family: monospace;
+}
+</style>
+</head>
+
+<body ng-controller="SyncthingCtrl">
+<div class="container">
+    <div class="header">
+        <h3 class="text-muted">syncthing&emsp;<small>|</small>&emsp;<small>{{version}}</small></h3>
+    </div>
+
+    <div class="row">
+        <div class="col-md-12">
+            <h2>Synchronization</h2>
+            <div class="progress">
+                <div class="progress-bar" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
+                    ng-class="{'progress-bar-success': model.needBytes === 0, 'progress-bar-info': model.needBytes !== 0}"
+                    style="width: {{100 * model.inSyncBytes / model.globalBytes | number:2}}%;">
+                        {{100 * model.inSyncBytes / model.globalBytes | number:0}}%
+                </div>
+            </div>
+            <p ng-show="model.needBytes > 0">Need {{model.needFiles | alwaysNumber}} files, {{model.needBytes | binary}}B</p>
+        </div>
+    </div>
+
+    <div class="row">
+        <div class="col-md-6">
+            <h1>Repository Status</h1>
+
+            <p>Cluster contains {{model.globalFiles | alwaysNumber}} files, {{model.globalBytes | binary}}B
+            <span class="text-muted">(+{{model.globalDeleted | alwaysNumber}} delete records)</span></p>
+
+            <p>Local repository has {{model.localFiles | alwaysNumber}} files, {{model.localBytes | binary}}B
+            <span class="text-muted">(+{{model.localDeleted | alwaysNumber}} delete records)</span></p>
+
+            <div ng-show="model.needFiles > 0">
+                <h2>Files to Synchronize</h2>
+                <table class="table table-condensed table-striped">
+                    <tr ng-repeat="file in need track by $index">
+                        <td><abbr title="{{file.Name}}">{{file.ShortName}}</abbr></td>
+                        <td class="text-right">{{file.Size | binary}}B</td>
+                    </tr>
+                </table>
+            </div>
+        </div>
+        <div class="col-md-6">
+            <h1>Cluster Status</h1>
+            <table class="table table-condensed">
+                <tbody>
+                <tr ng-repeat="(node, address) in config.nodes" ng-class="{'text-primary': !!connections[node]}">
+                    <td><abbr class="text-monospace" title="{{node}}">{{node | short}}</abbr></td>
+                    <td>
+                        <span ng-show="!!connections[node]">
+                            <span class="glyphicon glyphicon-link"></span>
+                            {{connections[node].Address}}
+                        </span>
+                        <span ng-hide="!!connections[node]">
+                            <span class="glyphicon glyphicon-cog"></span>
+                            {{address}}
+                        </span>
+                    </td>
+                    <td class="text-right">
+                        <abbr title="{{connections[node].InBytesTotal | binary}}B">{{connections[node].inbps | metric}}b/s</abbr>
+                        <span class="text-muted glyphicon glyphicon-cloud-download"></span>
+                    </td>
+                    <td class="text-right">
+                        <abbr title="{{connections[node].OutBytesTotal | binary}}B">{{connections[node].outbps | metric}}b/s</abbr>
+                        <span class="text-muted glyphicon glyphicon-cloud-upload"></span>
+                    </td>
+                </tr>
+                </tbody>
+            </table>
+        </div>
+    </div>
+
+</div>
+
+<script src="angular.min.js"></script>
+<script src="jquery-2.0.3.min.js"></script>
+<script src="bootstrap/js/bootstrap.min.js"></script>
+<script src="app.js"></script>
+</body>
+</html>

main.go

@@ -2,9 +2,7 @@ package main
 
 import (
 	"compress/gzip"
-	"crypto/sha1"
 	"crypto/tls"
-	"fmt"
 	"log"
 	"net"
 	"net/http"
@@ -18,6 +16,7 @@ import (
 	"github.com/calmh/ini"
 	"github.com/calmh/syncthing/discover"
 	flags "github.com/calmh/syncthing/github.com/jessevdk/go-flags"
+	"github.com/calmh/syncthing/model"
 	"github.com/calmh/syncthing/protocol"
 )
 
@@ -25,20 +24,21 @@ type Options struct {
 	ConfDir    string           `short:"c" long:"cfg" description:"Configuration directory" default:"~/.syncthing" value-name:"DIR"`
 	Listen     string           `short:"l" long:"listen" description:"Listen address" default:":22000" value-name:"ADDR"`
 	ReadOnly   bool             `short:"r" long:"ro" description:"Repository is read only"`
-	Delete     bool             `short:"d" long:"delete" description:"Delete files deleted from cluster"`
 	Rehash     bool             `long:"rehash" description:"Ignore cache and rehash all files in repository"`
+	NoDelete   bool             `long:"no-delete" description:"Never delete files"`
 	NoSymlinks bool             `long:"no-symlinks" description:"Don't follow first level symlinks in the repo"`
+	NoStats    bool             `long:"no-stats" description:"Don't print model and connection statistics"`
+	GUIAddr    string           `long:"gui" description:"GUI listen address" default:"" value-name:"ADDR"`
 	Discovery  DiscoveryOptions `group:"Discovery Options"`
 	Advanced   AdvancedOptions  `group:"Advanced Options"`
 	Debug      DebugOptions     `group:"Debugging Options"`
 }
 
 type DebugOptions struct {
-	LogSource bool   `long:"log-source"`
-	TraceFile bool   `long:"trace-file"`
-	TraceNet  bool   `long:"trace-net"`
-	TraceIdx  bool   `long:"trace-idx"`
-	Profiler  string `long:"profiler" value-name:"ADDR"`
+	LogSource    bool     `long:"log-source"`
+	TraceModel   []string `long:"trace-model" value-name:"TRACE" description:"idx, net, file, need"`
+	TraceConnect bool     `long:"trace-connect"`
+	Profiler     string   `long:"profiler" value-name:"ADDR"`
 }
 
 type DiscoveryOptions struct {
@@ -59,7 +59,6 @@ var opts Options
 var Version string = "unknown-dev"
 
 const (
-	confDirName  = ".syncthing"
 	confFileName = "syncthing.ini"
 )
 
@@ -73,12 +72,10 @@ func main() {
 	if err != nil {
 		os.Exit(0)
 	}
-	if opts.Debug.TraceFile || opts.Debug.TraceIdx || opts.Debug.TraceNet || opts.Debug.LogSource {
+	if len(opts.Debug.TraceModel) > 0 || opts.Debug.LogSource {
 		logger = log.New(os.Stderr, "", log.Lshortfile|log.Ldate|log.Ltime|log.Lmicroseconds)
 	}
-	if strings.HasPrefix(opts.ConfDir, "~/") {
-		opts.ConfDir = strings.Replace(opts.ConfDir, "~", getHomeDir(), 1)
-	}
+	opts.ConfDir = expandTilde(opts.ConfDir)
 
 	infoln("Version", Version)
 
@@ -125,7 +122,7 @@ func main() {
 	config = ini.Parse(cf)
 	cf.Close()
 
-	var dir = config.Get("repository", "dir")
+	var dir = expandTilde(config.Get("repository", "dir"))
 
 	// Create a map of desired node connections based on the configuration file
 	// directives.
@@ -136,7 +133,15 @@ func main() {
 	}
 
 	ensureDir(dir, -1)
-	m := NewModel(dir)
+	m := model.NewModel(dir)
+	for _, t := range opts.Debug.TraceModel {
+		m.Trace(t)
+	}
+
+	// GUI
+	if opts.GUIAddr != "" {
+		startGUI(opts.GUIAddr, m)
+	}
 
 	// Walk the repository and update the local model before establishing any
 	// connections to other nodes.
@@ -159,10 +164,15 @@ func main() {
 	// Routine to pull blocks from other nodes to synchronize the local
 	// repository. Does not run when we are in read only (publish only) mode.
 	if !opts.ReadOnly {
-		infoln("Cleaning out incomplete synchronizations")
-		CleanTempFiles(dir)
-		okln("Ready to synchronize")
-		m.Start()
+		if opts.NoDelete {
+			infoln("Deletes from peer nodes will be ignored")
+		} else {
+			infoln("Deletes from peer nodes are allowed")
+		}
+		okln("Ready to synchronize (read-write)")
+		m.StartRW(!opts.NoDelete, opts.Advanced.FilesInFlight, opts.Advanced.RequestsInFlight)
+	} else {
+		okln("Ready to synchronize (read only; no external updates accepted)")
 	}
 
 	// Periodically scan the repository and update the local model.
@@ -174,10 +184,46 @@ func main() {
 		}
 	}()
 
+	if !opts.NoStats {
+		// Periodically print statistics
+		go printStatsLoop(m)
+	}
+
 	select {}
 }
 
-func listen(myID string, addr string, m *Model, cfg *tls.Config) {
+func printStatsLoop(m *model.Model) {
+	var lastUpdated int64
+	var lastStats = make(map[string]model.ConnectionInfo)
+
+	for {
+		time.Sleep(60 * time.Second)
+
+		for node, stats := range m.ConnectionStats() {
+			secs := time.Since(lastStats[node].At).Seconds()
+			inbps := 8 * int(float64(stats.InBytesTotal-lastStats[node].InBytesTotal)/secs)
+			outbps := 8 * int(float64(stats.OutBytesTotal-lastStats[node].OutBytesTotal)/secs)
+
+			if inbps+outbps > 0 {
+				infof("%s: %sb/s in, %sb/s out", node, MetricPrefix(inbps), MetricPrefix(outbps))
+			}
+
+			lastStats[node] = stats
+		}
+
+		if lu := m.Generation(); lu > lastUpdated {
+			lastUpdated = lu
+			files, _, bytes := m.GlobalSize()
+			infof("%6d files, %9sB in cluster", files, BinaryPrefix(bytes))
+			files, _, bytes = m.LocalSize()
+			infof("%6d files, %9sB in local repo", files, BinaryPrefix(bytes))
+			needFiles, bytes := m.NeedFiles()
+			infof("%6d files, %9sB to synchronize", len(needFiles), BinaryPrefix(bytes))
+		}
+	}
+}
+
+func listen(myID string, addr string, m *model.Model, cfg *tls.Config) {
 	l, err := tls.Listen("tcp", addr, cfg)
 	fatalErr(err)
 
@@ -189,7 +235,7 @@ listen:
 			continue
 		}
 
-		if opts.Debug.TraceNet {
+		if opts.Debug.TraceConnect {
 			debugln("NET: Connect from", conn.RemoteAddr())
 		}
 
@@ -223,7 +269,7 @@ listen:
 	}
 }
 
-func connect(myID string, addr string, nodeAddrs map[string][]string, m *Model, cfg *tls.Config) {
+func connect(myID string, addr string, nodeAddrs map[string][]string, m *model.Model, cfg *tls.Config) {
 	_, portstr, err := net.SplitHostPort(addr)
 	fatalErr(err)
 	port, _ := strconv.Atoi(portstr)
@@ -266,12 +312,12 @@ func connect(myID string, addr string, nodeAddrs map[string][]string, m *Model,
 					}
 				}
 
-				if opts.Debug.TraceNet {
+				if opts.Debug.TraceConnect {
 					debugln("NET: Dial", nodeID, addr)
 				}
 				conn, err := tls.Dial("tcp", addr, cfg)
 				if err != nil {
-					if opts.Debug.TraceNet {
+					if opts.Debug.TraceConnect {
 						debugln("NET:", err)
 					}
 					continue
@@ -293,14 +339,14 @@ func connect(myID string, addr string, nodeAddrs map[string][]string, m *Model,
 	}
 }
 
-func updateLocalModel(m *Model) {
-	files := Walk(m.Dir(), m, !opts.NoSymlinks)
+func updateLocalModel(m *model.Model) {
+	files := m.FilteredWalk(!opts.NoSymlinks)
 	m.ReplaceLocal(files)
 	saveIndex(m)
 }
 
-func saveIndex(m *Model) {
-	name := fmt.Sprintf("%x.idx.gz", sha1.Sum([]byte(m.Dir())))
+func saveIndex(m *model.Model) {
+	name := m.RepoID() + ".idx.gz"
 	fullName := path.Join(opts.ConfDir, name)
 	idxf, err := os.Create(fullName + ".tmp")
 	if err != nil {
@@ -315,9 +361,9 @@ func saveIndex(m *Model) {
 	os.Rename(fullName+".tmp", fullName)
 }
 
-func loadIndex(m *Model) {
-	fname := fmt.Sprintf("%x.idx.gz", sha1.Sum([]byte(m.Dir())))
-	idxf, err := os.Open(path.Join(opts.ConfDir, fname))
+func loadIndex(m *model.Model) {
+	name := m.RepoID() + ".idx.gz"
+	idxf, err := os.Open(path.Join(opts.ConfDir, name))
 	if err != nil {
 		return
 	}
@@ -333,7 +379,7 @@ func loadIndex(m *Model) {
 	if err != nil {
 		return
 	}
-	m.SeedIndex(idx)
+	m.SeedLocal(idx)
 }
 
 func ensureDir(dir string, mode int) {
@@ -347,6 +393,13 @@ func ensureDir(dir string, mode int) {
 	}
 }
 
+func expandTilde(p string) string {
+	if strings.HasPrefix(p, "~/") {
+		return strings.Replace(p, "~", getHomeDir(), 1)
+	}
+	return p
+}
+
 func getHomeDir() string {
 	home := os.Getenv("HOME")
 	if home == "" {

model/blocks.go

@@ -1,4 +1,4 @@
-package main
+package model
 
 import (
 	"bytes"
@@ -6,8 +6,6 @@ import (
 	"io"
 )
 
-type BlockList []Block
-
 type Block struct {
 	Offset uint64
 	Length uint32
@@ -15,8 +13,8 @@ type Block struct {
 }
 
 // Blocks returns the blockwise hash of the reader.
-func Blocks(r io.Reader, blocksize int) (BlockList, error) {
-	var blocks BlockList
+func Blocks(r io.Reader, blocksize int) ([]Block, error) {
+	var blocks []Block
 	var offset uint64
 	for {
 		lr := &io.LimitedReader{r, int64(blocksize)}
@@ -42,9 +40,9 @@ func Blocks(r io.Reader, blocksize int) (BlockList, error) {
 	return blocks, nil
 }
 
-// To returns the list of blocks necessary to transform src into dst.
-// Both block lists must have been created with the same block size.
-func (src BlockList) To(tgt BlockList) (have, need BlockList) {
+// BlockDiff returns lists of common and missing (to transform src into tgt)
+// blocks. Both block lists must have been created with the same block size.
+func BlockDiff(src, tgt []Block) (have, need []Block) {
 	if len(tgt) == 0 && len(src) != 0 {
 		return nil, nil
 	}

model/blocks_test.go

@@ -1,4 +1,4 @@
-package main
+package model
 
 import (
 	"bytes"
@@ -98,7 +98,7 @@ func TestDiff(t *testing.T) {
 	for i, test := range diffTestData {
 		a, _ := Blocks(bytes.NewBufferString(test.a), test.s)
 		b, _ := Blocks(bytes.NewBufferString(test.b), test.s)
-		_, d := a.To(b)
+		_, d := BlockDiff(a, b)
 		if len(d) != len(test.d) {
 			t.Fatalf("Incorrect length for diff %d; %d != %d", i, len(d), len(test.d))
 		} else {

model/model.go

@@ -1,4 +1,4 @@
-package main
+package model
 
 /*
 
@@ -12,8 +12,12 @@ acquire locks, but document what locks they require.
 */
 
 import (
+	"crypto/sha1"
+	"errors"
 	"fmt"
 	"io"
+	"log"
+	"net"
 	"os"
 	"path"
 	"sync"
@@ -39,6 +43,16 @@ type Model struct {
 
 	lastIdxBcast        time.Time
 	lastIdxBcastRequest time.Time
+
+	rwRunning      bool
+	parallellFiles int
+	paralllelReqs  int
+	delete         bool
+
+	trace map[string]bool
+
+	fileLastChanged   map[string]time.Time
+	fileWasSuppressed map[string]int
 }
 
 const (
@@ -46,117 +60,187 @@ const (
 
 	idxBcastHoldtime = 15 * time.Second  // Wait at least this long after the last index modification
 	idxBcastMaxDelay = 120 * time.Second // Unless we've already waited this long
+
+	minFileHoldTimeS = 60  // Never allow file changes more often than this
+	maxFileHoldTimeS = 600 // Always allow file changes at least this often
 )
 
+var ErrNoSuchFile = errors.New("no such file")
+
+// NewModel creates and starts a new model. The model starts in read-only mode,
+// where it sends index information to connected peers and responds to requests
+// for file data without altering the local repository in any way.
 func NewModel(dir string) *Model {
 	m := &Model{
-		dir:          dir,
-		global:       make(map[string]File),
-		local:        make(map[string]File),
-		remote:       make(map[string]map[string]File),
-		need:         make(map[string]bool),
-		nodes:        make(map[string]*protocol.Connection),
-		rawConn:      make(map[string]io.ReadWriteCloser),
-		lastIdxBcast: time.Now(),
+		dir:               dir,
+		global:            make(map[string]File),
+		local:             make(map[string]File),
+		remote:            make(map[string]map[string]File),
+		need:              make(map[string]bool),
+		nodes:             make(map[string]*protocol.Connection),
+		rawConn:           make(map[string]io.ReadWriteCloser),
+		lastIdxBcast:      time.Now(),
+		trace:             make(map[string]bool),
+		fileLastChanged:   make(map[string]time.Time),
+		fileWasSuppressed: make(map[string]int),
 	}
 
-	go m.printStatsLoop()
 	go m.broadcastIndexLoop()
 	return m
 }
 
-func (m *Model) Start() {
+// Trace enables trace logging of the given facility. This is a debugging function; grep for m.trace.
+func (m *Model) Trace(t string) {
+	m.Lock()
+	defer m.Unlock()
+	m.trace[t] = true
+}
+
+// StartRW starts read/write processing on the current model. When in
+// read/write mode the model will attempt to keep in sync with the cluster by
+// pulling needed files from peer nodes.
+func (m *Model) StartRW(del bool, pfiles, preqs int) {
+	m.Lock()
+	defer m.Unlock()
+
+	if m.rwRunning {
+		panic("starting started model")
+	}
+
+	m.rwRunning = true
+	m.delete = del
+	m.parallellFiles = pfiles
+	m.paralllelReqs = preqs
+
+	go m.cleanTempFiles()
 	go m.puller()
 }
 
-func (m *Model) printStatsLoop() {
-	var lastUpdated int64
-	for {
-		time.Sleep(60 * time.Second)
-		m.RLock()
-		m.printConnectionStats()
-		if m.updatedLocal+m.updateGlobal > lastUpdated {
-			m.printModelStats()
-			lastUpdated = m.updatedLocal + m.updateGlobal
-		}
-		m.RUnlock()
-	}
+// Generation returns an opaque integer that is guaranteed to increment on
+// every change to the local repository or global model.
+func (m *Model) Generation() int64 {
+	m.RLock()
+	defer m.RUnlock()
+
+	return m.updatedLocal + m.updateGlobal
 }
 
-func (m *Model) printConnectionStats() {
+type ConnectionInfo struct {
+	protocol.Statistics
+	Address string
+}
+
+// ConnectionStats returns a map with connection statistics for each connected node.
+func (m *Model) ConnectionStats() map[string]ConnectionInfo {
+	type remoteAddrer interface {
+		RemoteAddr() net.Addr
+	}
+
+	m.RLock()
+	defer m.RUnlock()
+
+	var res = make(map[string]ConnectionInfo)
 	for node, conn := range m.nodes {
-		stats := conn.Statistics()
-		if stats.InBytesPerSec > 0 || stats.OutBytesPerSec > 0 {
-			infof("%s: %sB/s in, %sB/s out", node, toSI(stats.InBytesPerSec), toSI(stats.OutBytesPerSec))
+		ci := ConnectionInfo{
+			Statistics: conn.Statistics(),
 		}
+		if nc, ok := m.rawConn[node].(remoteAddrer); ok {
+			ci.Address = nc.RemoteAddr().String()
+		}
+		res[node] = ci
 	}
+	return res
 }
 
-func (m *Model) printModelStats() {
-	var tot int
+// LocalSize returns the number of files, deleted files and total bytes for all
+// files in the global model.
+func (m *Model) GlobalSize() (files, deleted, bytes int) {
+	m.RLock()
+	defer m.RUnlock()
+
 	for _, f := range m.global {
-		tot += f.Size()
-	}
-	infof("%6d files, %8sB in cluster", len(m.global), toSI(tot))
-
-	if len(m.need) > 0 {
-		tot = 0
-		for _, f := range m.local {
-			tot += f.Size()
+		if f.Flags&FlagDeleted == 0 {
+			files++
+			bytes += f.Size()
+		} else {
+			deleted++
 		}
-		infof("%6d files, %8sB in local repo", len(m.local), toSI(tot))
-
-		tot = 0
-		for n := range m.need {
-			tot += m.global[n].Size()
-		}
-		infof("%6d files, %8sB to synchronize", len(m.need), toSI(tot))
 	}
+	return
 }
 
-func toSI(n int) string {
-	if n > 1<<30 {
-		return fmt.Sprintf("%.02f G", float64(n)/(1<<30))
+// LocalSize returns the number of files, deleted files and total bytes for all
+// files in the local repository.
+func (m *Model) LocalSize() (files, deleted, bytes int) {
+	m.RLock()
+	defer m.RUnlock()
+
+	for _, f := range m.local {
+		if f.Flags&FlagDeleted == 0 {
+			files++
+			bytes += f.Size()
+		} else {
+			deleted++
+		}
 	}
-	if n > 1<<20 {
-		return fmt.Sprintf("%.02f M", float64(n)/(1<<20))
+	return
+}
+
+// InSyncSize returns the number and total byte size of the local files that
+// are in sync with the global model.
+func (m *Model) InSyncSize() (files, bytes int) {
+	m.RLock()
+	defer m.RUnlock()
+
+	for n, f := range m.local {
+		if gf, ok := m.global[n]; ok && f.Modified == gf.Modified {
+			files++
+			bytes += f.Size()
+		}
 	}
-	if n > 1<<10 {
-		return fmt.Sprintf("%.01f K", float64(n)/(1<<10))
+	return
+}
+
+// NeedFiles returns the list of currently needed files and the total size.
+func (m *Model) NeedFiles() (files []File, bytes int) {
+	m.RLock()
+	defer m.RUnlock()
+
+	for n := range m.need {
+		f := m.global[n]
+		files = append(files, f)
+		bytes += f.Size()
 	}
-	return fmt.Sprintf("%d ", n)
+	return
 }
 
 // Index is called when a new node is connected and we receive their full index.
+// Implements the protocol.Model interface.
 func (m *Model) Index(nodeID string, fs []protocol.FileInfo) {
 	m.Lock()
 	defer m.Unlock()
 
-	if opts.Debug.TraceNet {
-		debugf("NET IDX(in): %s: %d files", nodeID, len(fs))
+	if m.trace["net"] {
+		log.Printf("NET IDX(in): %s: %d files", nodeID, len(fs))
 	}
 
 	m.remote[nodeID] = make(map[string]File)
 	for _, f := range fs {
-		if f.Flags&FlagDeleted != 0 && !opts.Delete {
-			// Files marked as deleted do not even enter the model
-			continue
-		}
 		m.remote[nodeID][f.Name] = fileFromFileInfo(f)
 	}
 
 	m.recomputeGlobal()
 	m.recomputeNeed()
-	m.printModelStats()
 }
 
 // IndexUpdate is called for incremental updates to connected nodes' indexes.
+// Implements the protocol.Model interface.
 func (m *Model) IndexUpdate(nodeID string, fs []protocol.FileInfo) {
 	m.Lock()
 	defer m.Unlock()
 
-	if opts.Debug.TraceNet {
-		debugf("NET IDXUP(in): %s: %d files", nodeID, len(fs))
+	if m.trace["net"] {
+		log.Printf("NET IDXUP(in): %s: %d files", nodeID, len(fs))
 	}
 
 	repo, ok := m.remote[nodeID]
@@ -165,7 +249,7 @@ func (m *Model) IndexUpdate(nodeID string, fs []protocol.FileInfo) {
 	}
 
 	for _, f := range fs {
-		if f.Flags&FlagDeleted != 0 && !opts.Delete {
+		if f.Flags&FlagDeleted != 0 && !m.delete {
 			// Files marked as deleted do not even enter the model
 			continue
 		}
@@ -176,21 +260,8 @@ func (m *Model) IndexUpdate(nodeID string, fs []protocol.FileInfo) {
 	m.recomputeNeed()
 }
 
-// SeedIndex is called when our previously cached index is loaded from disk at startup.
-func (m *Model) SeedIndex(fs []protocol.FileInfo) {
-	m.Lock()
-	defer m.Unlock()
-
-	m.local = make(map[string]File)
-	for _, f := range fs {
-		m.local[f.Name] = fileFromFileInfo(f)
-	}
-
-	m.recomputeGlobal()
-	m.recomputeNeed()
-	m.printModelStats()
-}
-
+// Close removes the peer from the model and closes the underlyign connection if possible.
+// Implements the protocol.Model interface.
 func (m *Model) Close(node string, err error) {
 	m.Lock()
 	defer m.Unlock()
@@ -198,14 +269,6 @@ func (m *Model) Close(node string, err error) {
 	conn, ok := m.rawConn[node]
 	if ok {
 		conn.Close()
-	} else {
-		warnln("Close on unknown connection for node", node)
-	}
-
-	if err != nil {
-		warnf("Disconnected from node %s: %v", node, err)
-	} else {
-		infoln("Disconnected from node", node)
 	}
 
 	delete(m.remote, node)
@@ -216,9 +279,21 @@ func (m *Model) Close(node string, err error) {
 	m.recomputeNeed()
 }
 
+// Request returns the specified data segment by reading it from local disk.
+// Implements the protocol.Model interface.
 func (m *Model) Request(nodeID, name string, offset uint64, size uint32, hash []byte) ([]byte, error) {
-	if opts.Debug.TraceNet && nodeID != "<local>" {
-		debugf("NET REQ(in): %s: %q o=%d s=%d h=%x", nodeID, name, offset, size, hash)
+	// Verify that the requested file exists in the local and global model.
+	m.RLock()
+	_, localOk := m.local[name]
+	_, globalOk := m.global[name]
+	m.RUnlock()
+	if !localOk || !globalOk {
+		log.Printf("SECURITY (nonexistent file) REQ(in): %s: %q o=%d s=%d h=%x", nodeID, name, offset, size, hash)
+		return nil, ErrNoSuchFile
+	}
+
+	if m.trace["net"] && nodeID != "<local>" {
+		log.Printf("NET REQ(in): %s: %q o=%d s=%d h=%x", nodeID, name, offset, size, hash)
 	}
 	fn := path.Join(m.dir, name)
 	fd, err := os.Open(fn) // XXX: Inefficient, should cache fd?
@@ -236,21 +311,8 @@ func (m *Model) Request(nodeID, name string, offset uint64, size uint32, hash []
 	return buf, nil
 }
 
-func (m *Model) RequestGlobal(nodeID, name string, offset uint64, size uint32, hash []byte) ([]byte, error) {
-	m.RLock()
-	nc, ok := m.nodes[nodeID]
-	m.RUnlock()
-	if !ok {
-		return nil, fmt.Errorf("RequestGlobal: no such node: %s", nodeID)
-	}
-
-	if opts.Debug.TraceNet {
-		debugf("NET REQ(out): %s: %q o=%d s=%d h=%x", nodeID, name, offset, size, hash)
-	}
-
-	return nc.Request(name, offset, size, hash)
-}
-
+// ReplaceLocal replaces the local repository index with the given list of files.
+// Change suppression is applied to files changing too often.
 func (m *Model) ReplaceLocal(fs []File) {
 	m.Lock()
 	defer m.Unlock()
@@ -282,6 +344,117 @@ func (m *Model) ReplaceLocal(fs []File) {
 	}
 }
 
+// SeedLocal replaces the local repository index with the given list of files,
+// in protocol data types. Does not track deletes, should only be used to seed
+// the local index from a cache file at startup.
+func (m *Model) SeedLocal(fs []protocol.FileInfo) {
+	m.Lock()
+	defer m.Unlock()
+
+	m.local = make(map[string]File)
+	for _, f := range fs {
+		m.local[f.Name] = fileFromFileInfo(f)
+	}
+
+	m.recomputeGlobal()
+	m.recomputeNeed()
+}
+
+// ConnectedTo returns true if we are connected to the named node.
+func (m *Model) ConnectedTo(nodeID string) bool {
+	m.RLock()
+	defer m.RUnlock()
+	_, ok := m.nodes[nodeID]
+	return ok
+}
+
+// ProtocolIndex returns the current local index in protocol data types.
+func (m *Model) ProtocolIndex() []protocol.FileInfo {
+	m.RLock()
+	defer m.RUnlock()
+	return m.protocolIndex()
+}
+
+// RepoID returns a unique ID representing the current repository location.
+func (m *Model) RepoID() string {
+	return fmt.Sprintf("%x", sha1.Sum([]byte(m.dir)))
+}
+
+// AddConnection adds a new peer connection to the model. An initial index will
+// be sent to the connected peer, thereafter index updates whenever the local
+// repository changes.
+func (m *Model) AddConnection(conn io.ReadWriteCloser, nodeID string) {
+	node := protocol.NewConnection(nodeID, conn, conn, m)
+
+	m.Lock()
+	m.nodes[nodeID] = node
+	m.rawConn[nodeID] = conn
+	m.Unlock()
+
+	m.RLock()
+	idx := m.protocolIndex()
+	m.RUnlock()
+
+	go func() {
+		node.Index(idx)
+	}()
+}
+
+func (m *Model) shouldSuppressChange(name string) bool {
+	sup := shouldSuppressChange(m.fileLastChanged[name], m.fileWasSuppressed[name])
+	if sup {
+		m.fileWasSuppressed[name]++
+	} else {
+		m.fileWasSuppressed[name] = 0
+		m.fileLastChanged[name] = time.Now()
+	}
+	return sup
+}
+
+func shouldSuppressChange(lastChange time.Time, numChanges int) bool {
+	sinceLast := time.Since(lastChange)
+	if sinceLast > maxFileHoldTimeS*time.Second {
+		return false
+	}
+	if sinceLast < time.Duration((numChanges+2)*minFileHoldTimeS)*time.Second {
+		return true
+	}
+	return false
+}
+
+// protocolIndex returns the current local index in protocol data types.
+// Must be called with the read lock held.
+func (m *Model) protocolIndex() []protocol.FileInfo {
+	var index []protocol.FileInfo
+	for _, f := range m.local {
+		mf := fileInfoFromFile(f)
+		if m.trace["idx"] {
+			var flagComment string
+			if mf.Flags&FlagDeleted != 0 {
+				flagComment = " (deleted)"
+			}
+			log.Printf("IDX: %q m=%d f=%o%s (%d blocks)", mf.Name, mf.Modified, mf.Flags, flagComment, len(mf.Blocks))
+		}
+		index = append(index, mf)
+	}
+	return index
+}
+
+func (m *Model) requestGlobal(nodeID, name string, offset uint64, size uint32, hash []byte) ([]byte, error) {
+	m.RLock()
+	nc, ok := m.nodes[nodeID]
+	m.RUnlock()
+	if !ok {
+		return nil, fmt.Errorf("requestGlobal: no such node: %s", nodeID)
+	}
+
+	if m.trace["net"] {
+		log.Printf("NET REQ(out): %s: %q o=%d s=%d h=%x", nodeID, name, offset, size, hash)
+	}
+
+	return nc.Request(name, offset, size, hash)
+}
+
 func (m *Model) broadcastIndexLoop() {
 	for {
 		m.RLock()
@@ -298,8 +471,8 @@ func (m *Model) broadcastIndexLoop() {
 			m.lastIdxBcast = time.Now()
 			for _, node := range m.nodes {
 				node := node
-				if opts.Debug.TraceNet {
-					debugf("NET IDX(out/loop): %s: %d files", node.ID, len(idx))
+				if m.trace["net"] {
+					log.Printf("NET IDX(out/loop): %s: %d files", node.ID, len(idx))
 				}
 				go func() {
 					node.Index(idx)
@@ -337,10 +510,7 @@ func (m *Model) markDeletedLocals(newLocal map[string]File) bool {
 	return updated
 }
 
-func (m *Model) UpdateLocal(f File) {
-	m.Lock()
-	defer m.Unlock()
-
+func (m *Model) updateLocal(f File) {
 	if ef, ok := m.local[f.Name]; !ok || ef.Modified != f.Modified {
 		m.local[f.Name] = f
 		m.recomputeGlobal()
@@ -350,36 +520,6 @@ func (m *Model) UpdateLocal(f File) {
 	}
 }
 
-func (m *Model) Dir() string {
-	m.RLock()
-	defer m.RUnlock()
-	return m.dir
-}
-
-func (m *Model) HaveFiles() []File {
-	m.RLock()
-	defer m.RUnlock()
-	var files []File
-	for _, file := range m.local {
-		files = append(files, file)
-	}
-	return files
-}
-
-func (m *Model) LocalFile(name string) (File, bool) {
-	m.RLock()
-	defer m.RUnlock()
-	f, ok := m.local[name]
-	return f, ok
-}
-
-func (m *Model) GlobalFile(name string) (File, bool) {
-	m.RLock()
-	defer m.RUnlock()
-	f, ok := m.global[name]
-	return f, ok
-}
-
 // Must be called with the write lock held.
 func (m *Model) recomputeGlobal() {
 	var newGlobal = make(map[string]File)
@@ -422,6 +562,17 @@ func (m *Model) recomputeNeed() {
 	for n, f := range m.global {
 		hf, ok := m.local[n]
 		if !ok || f.Modified > hf.Modified {
+			if f.Flags&FlagDeleted != 0 && !m.delete {
+				// Don't want to delete files, so forget this need
+				continue
+			}
+			if f.Flags&FlagDeleted != 0 && !ok {
+				// Don't have the file, so don't need to delete it
+				continue
+			}
+			if m.trace["need"] {
+				log.Println("NEED:", ok, hf, f)
+			}
 			m.need[n] = true
 		}
 	}
@@ -441,56 +592,6 @@ func (m *Model) whoHas(name string) []string {
 	return remote
 }
 
-func (m *Model) ConnectedTo(nodeID string) bool {
-	m.RLock()
-	defer m.RUnlock()
-	_, ok := m.nodes[nodeID]
-	return ok
-}
-
-func (m *Model) ProtocolIndex() []protocol.FileInfo {
-	m.RLock()
-	defer m.RUnlock()
-	return m.protocolIndex()
-}
-
-// Must be called with the read lock held.
-func (m *Model) protocolIndex() []protocol.FileInfo {
-	var index []protocol.FileInfo
-	for _, f := range m.local {
-		mf := fileInfoFromFile(f)
-		if opts.Debug.TraceIdx {
-			var flagComment string
-			if mf.Flags&FlagDeleted != 0 {
-				flagComment = " (deleted)"
-			}
-			debugf("IDX: %q m=%d f=%o%s (%d blocks)", mf.Name, mf.Modified, mf.Flags, flagComment, len(mf.Blocks))
-		}
-		index = append(index, mf)
-	}
-	return index
-}
-
-func (m *Model) AddConnection(conn io.ReadWriteCloser, nodeID string) {
-	node := protocol.NewConnection(nodeID, conn, conn, m)
-
-	m.Lock()
-	m.nodes[nodeID] = node
-	m.rawConn[nodeID] = conn
-	m.Unlock()
-
-	infoln("Connected to node", nodeID)
-
-	m.RLock()
-	idx := m.protocolIndex()
-	m.RUnlock()
-
-	go func() {
-		node.Index(idx)
-		infoln("Sent initial index to node", nodeID)
-	}()
-}
-
 func fileFromFileInfo(f protocol.FileInfo) File {
 	var blocks []Block
 	var offset uint64

model/model_puller.go

@@ -1,4 +1,4 @@
-package main
+package model
 
 /*
 
@@ -18,6 +18,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"log"
 	"os"
 	"path"
 	"sync"
@@ -60,7 +61,7 @@ func (m *Model) pullFile(name string) error {
 		applyDone.Done()
 	}()
 
-	local, remote := localFile.Blocks.To(globalFile.Blocks)
+	local, remote := BlockDiff(localFile.Blocks, globalFile.Blocks)
 	var fetchDone sync.WaitGroup
 
 	// One local copy routine
@@ -83,7 +84,7 @@ func (m *Model) pullFile(name string) error {
 	// N remote copy routines
 
 	var remoteBlocks = blockIterator{blocks: remote}
-	for i := 0; i < opts.Advanced.RequestsInFlight; i++ {
+	for i := 0; i < m.paralllelReqs; i++ {
 		curNode := nodeIDs[i%len(nodeIDs)]
 		fetchDone.Add(1)
 
@@ -93,7 +94,7 @@ func (m *Model) pullFile(name string) error {
 				if !ok {
 					break
 				}
-				data, err := m.RequestGlobal(nodeID, name, block.Offset, block.Length, block.Hash)
+				data, err := m.requestGlobal(nodeID, name, block.Offset, block.Length, block.Hash)
 				if err != nil {
 					break
 				}
@@ -120,6 +121,11 @@ func (m *Model) pullFile(name string) error {
 		return err
 	}
 
+	err = os.Chmod(tmpFilename, os.FileMode(globalFile.Flags&0777))
+	if err != nil {
+		return err
+	}
+
 	err = os.Rename(tmpFilename, filename)
 	if err != nil {
 		return err
@@ -143,7 +149,7 @@ func (m *Model) puller() {
 			continue
 		}
 
-		var limiter = make(chan bool, opts.Advanced.FilesInFlight)
+		var limiter = make(chan bool, m.parallellFiles)
 		var allDone sync.WaitGroup
 
 		for _, n := range ns {
@@ -156,28 +162,31 @@ func (m *Model) puller() {
 					<-limiter
 				}()
 
-				f, ok := m.GlobalFile(n)
+				m.RLock()
+				f, ok := m.global[n]
+				m.RUnlock()
+
 				if !ok {
 					return
 				}
 
 				var err error
 				if f.Flags&FlagDeleted == 0 {
-					if opts.Debug.TraceFile {
-						debugf("FILE: Pull %q", n)
+					if m.trace["file"] {
+						log.Printf("FILE: Pull %q", n)
 					}
 					err = m.pullFile(n)
 				} else {
-					if opts.Debug.TraceFile {
-						debugf("FILE: Remove %q", n)
+					if m.trace["file"] {
+						log.Printf("FILE: Remove %q", n)
 					}
 					// Cheerfully ignore errors here
 					_ = os.Remove(path.Join(m.dir, n))
 				}
 				if err == nil {
-					m.UpdateLocal(f)
-				} else {
-					warnln(err)
+					m.Lock()
+					m.updateLocal(f)
+					m.Unlock()
 				}
 			}(n)
 		}

model/model_test.go

@@ -1,6 +1,8 @@
-package main
+package model
 
 import (
+	"bytes"
+	"os"
 	"reflect"
 	"testing"
 	"time"
@@ -27,27 +29,37 @@ func TestNewModel(t *testing.T) {
 var testDataExpected = map[string]File{
 	"foo": File{
 		Name:     "foo",
-		Flags:    0644,
-		Modified: 1384244572,
+		Flags:    0,
+		Modified: 0,
 		Blocks:   []Block{{Offset: 0x0, Length: 0x7, Hash: []uint8{0xae, 0xc0, 0x70, 0x64, 0x5f, 0xe5, 0x3e, 0xe3, 0xb3, 0x76, 0x30, 0x59, 0x37, 0x61, 0x34, 0xf0, 0x58, 0xcc, 0x33, 0x72, 0x47, 0xc9, 0x78, 0xad, 0xd1, 0x78, 0xb6, 0xcc, 0xdf, 0xb0, 0x1, 0x9f}}},
 	},
 	"bar": File{
 		Name:     "bar",
-		Flags:    0644,
-		Modified: 1384244579,
+		Flags:    0,
+		Modified: 0,
 		Blocks:   []Block{{Offset: 0x0, Length: 0xa, Hash: []uint8{0x2f, 0x72, 0xcc, 0x11, 0xa6, 0xfc, 0xd0, 0x27, 0x1e, 0xce, 0xf8, 0xc6, 0x10, 0x56, 0xee, 0x1e, 0xb1, 0x24, 0x3b, 0xe3, 0x80, 0x5b, 0xf9, 0xa9, 0xdf, 0x98, 0xf9, 0x2f, 0x76, 0x36, 0xb0, 0x5c}}},
 	},
 	"baz/quux": File{
 		Name:     "baz/quux",
-		Flags:    0644,
-		Modified: 1384244676,
+		Flags:    0,
+		Modified: 0,
 		Blocks:   []Block{{Offset: 0x0, Length: 0x9, Hash: []uint8{0xc1, 0x54, 0xd9, 0x4e, 0x94, 0xba, 0x72, 0x98, 0xa6, 0xad, 0xb0, 0x52, 0x3a, 0xfe, 0x34, 0xd1, 0xb6, 0xa5, 0x81, 0xd6, 0xb8, 0x93, 0xa7, 0x63, 0xd4, 0x5d, 0xdc, 0x5e, 0x20, 0x9d, 0xcb, 0x83}}},
 	},
 }
 
+func init() {
+	// Fix expected test data to match reality
+	for n, f := range testDataExpected {
+		fi, _ := os.Stat("testdata/" + n)
+		f.Flags = uint32(fi.Mode())
+		f.Modified = fi.ModTime().Unix()
+		testDataExpected[n] = f
+	}
+}
+
 func TestUpdateLocal(t *testing.T) {
-	m := NewModel("foo")
-	fs := Walk("testdata", m, false)
+	m := NewModel("testdata")
+	fs, _ := m.Walk(false)
 	m.ReplaceLocal(fs)
 
 	if len(m.need) > 0 {
@@ -88,8 +100,8 @@ func TestUpdateLocal(t *testing.T) {
 }
 
 func TestRemoteUpdateExisting(t *testing.T) {
-	m := NewModel("foo")
-	fs := Walk("testdata", m, false)
+	m := NewModel("testdata")
+	fs, _ := m.Walk(false)
 	m.ReplaceLocal(fs)
 
 	newFile := protocol.FileInfo{
@@ -105,8 +117,8 @@ func TestRemoteUpdateExisting(t *testing.T) {
 }
 
 func TestRemoteAddNew(t *testing.T) {
-	m := NewModel("foo")
-	fs := Walk("testdata", m, false)
+	m := NewModel("testdata")
+	fs, _ := m.Walk(false)
 	m.ReplaceLocal(fs)
 
 	newFile := protocol.FileInfo{
@@ -122,8 +134,8 @@ func TestRemoteAddNew(t *testing.T) {
 }
 
 func TestRemoteUpdateOld(t *testing.T) {
-	m := NewModel("foo")
-	fs := Walk("testdata", m, false)
+	m := NewModel("testdata")
+	fs, _ := m.Walk(false)
 	m.ReplaceLocal(fs)
 
 	oldTimeStamp := int64(1234)
@@ -140,8 +152,8 @@ func TestRemoteUpdateOld(t *testing.T) {
 }
 
 func TestRemoteIndexUpdate(t *testing.T) {
-	m := NewModel("foo")
-	fs := Walk("testdata", m, false)
+	m := NewModel("testdata")
+	fs, _ := m.Walk(false)
 	m.ReplaceLocal(fs)
 
 	foo := protocol.FileInfo{
@@ -173,8 +185,8 @@ func TestRemoteIndexUpdate(t *testing.T) {
 }
 
 func TestDelete(t *testing.T) {
-	m := NewModel("foo")
-	fs := Walk("testdata", m, false)
+	m := NewModel("testdata")
+	fs, _ := m.Walk(false)
 	m.ReplaceLocal(fs)
 
 	if l1, l2 := len(m.local), len(fs); l1 != l2 {
@@ -190,7 +202,7 @@ func TestDelete(t *testing.T) {
 		Modified: ot,
 		Blocks:   []Block{{0, 100, []byte("some hash bytes")}},
 	}
-	m.UpdateLocal(newFile)
+	m.updateLocal(newFile)
 
 	if l1, l2 := len(m.local), len(fs)+1; l1 != l2 {
 		t.Errorf("Model len(local) incorrect (%d != %d)", l1, l2)
@@ -263,8 +275,8 @@ func TestDelete(t *testing.T) {
 }
 
 func TestForgetNode(t *testing.T) {
-	m := NewModel("foo")
-	fs := Walk("testdata", m, false)
+	m := NewModel("testdata")
+	fs, _ := m.Walk(false)
 	m.ReplaceLocal(fs)
 
 	if l1, l2 := len(m.local), len(fs); l1 != l2 {
@@ -306,3 +318,50 @@ func TestForgetNode(t *testing.T) {
 		t.Errorf("Model len(need) incorrect (%d != %d)", l1, l2)
 	}
 }
+
+func TestRequest(t *testing.T) {
+	m := NewModel("testdata")
+	fs, _ := m.Walk(false)
+	m.ReplaceLocal(fs)
+
+	bs, err := m.Request("some node", "foo", 0, 6, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if bytes.Compare(bs, []byte("foobar")) != 0 {
+		t.Errorf("Incorrect data from request: %q", string(bs))
+	}
+
+	bs, err = m.Request("some node", "../walk.go", 0, 6, nil)
+	if err == nil {
+		t.Error("Unexpected nil error on insecure file read")
+	}
+	if bs != nil {
+		t.Errorf("Unexpected non nil data on insecure file read: %q", string(bs))
+	}
+}
+
+func TestSuppression(t *testing.T) {
+	var testdata = []struct {
+		lastChange time.Time
+		hold       int
+		result     bool
+	}{
+		{time.Unix(0, 0), 0, false},                    // First change
+		{time.Now().Add(-1 * time.Second), 0, true},    // Changed once one second ago, suppress
+		{time.Now().Add(-119 * time.Second), 0, true},  // Changed once 119 seconds ago, suppress
+		{time.Now().Add(-121 * time.Second), 0, false}, // Changed once 121 seconds ago, permit
+
+		{time.Now().Add(-179 * time.Second), 1, true},  // Suppressed once 179 seconds ago, suppress again
+		{time.Now().Add(-181 * time.Second), 1, false}, // Suppressed once 181 seconds ago, permit
+
+		{time.Now().Add(-599 * time.Second), 99, true},  // Suppressed lots of times, last allowed 599 seconds ago, suppress again
+		{time.Now().Add(-601 * time.Second), 99, false}, // Suppressed lots of times, last allowed 601 seconds ago, permit
+	}
+
+	for i, tc := range testdata {
+		if shouldSuppressChange(tc.lastChange, tc.hold) != tc.result {
+			t.Errorf("Incorrect result for test #%d: %v", i, tc)
+		}
+	}
+}

model/testdata/.stignore

@@ -0,0 +1,2 @@
+.*
+quux

model/walk.go

@@ -0,0 +1,203 @@
+package model
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"path"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+const BlockSize = 128 * 1024
+
+type File struct {
+	Name     string
+	Flags    uint32
+	Modified int64
+	Blocks   []Block
+}
+
+func (f File) Size() (bytes int) {
+	for _, b := range f.Blocks {
+		bytes += int(b.Length)
+	}
+	return
+}
+
+func isTempName(name string) bool {
+	return strings.HasPrefix(path.Base(name), ".syncthing.")
+}
+
+func tempName(name string, modified int64) string {
+	tdir := path.Dir(name)
+	tname := fmt.Sprintf(".syncthing.%s.%d", path.Base(name), modified)
+	return path.Join(tdir, tname)
+}
+
+func (m *Model) genWalker(res *[]File, ign map[string][]string) filepath.WalkFunc {
+	return func(p string, info os.FileInfo, err error) error {
+		if err != nil {
+			return nil
+		}
+
+		if isTempName(p) {
+			return nil
+		}
+
+		rn, err := filepath.Rel(m.dir, p)
+		if err != nil {
+			return nil
+		}
+
+		if pn, sn := path.Split(rn); sn == ".stignore" {
+			pn := strings.Trim(pn, "/")
+			bs, _ := ioutil.ReadFile(p)
+			lines := bytes.Split(bs, []byte("\n"))
+			var patterns []string
+			for _, line := range lines {
+				if len(line) > 0 {
+					patterns = append(patterns, string(line))
+				}
+			}
+			ign[pn] = patterns
+			return nil
+		}
+
+		if info.Mode()&os.ModeType == 0 {
+			fi, err := os.Stat(p)
+			if err != nil {
+				return nil
+			}
+			modified := fi.ModTime().Unix()
+
+			m.RLock()
+			hf, ok := m.local[rn]
+			m.RUnlock()
+
+			if ok && hf.Modified == modified {
+				// No change
+				*res = append(*res, hf)
+			} else {
+				m.Lock()
+				if m.shouldSuppressChange(rn) {
+					if m.trace["file"] {
+						log.Println("FILE: SUPPRESS:", rn, m.fileWasSuppressed[rn], time.Since(m.fileLastChanged[rn]))
+					}
+
+					if ok {
+						// Files that are ignored will be suppressed but don't actually exist in the local model
+						*res = append(*res, hf)
+					}
+					m.Unlock()
+					return nil
+				}
+				m.Unlock()
+
+				if m.trace["file"] {
+					log.Printf("FILE: Hash %q", p)
+				}
+				fd, err := os.Open(p)
+				if err != nil {
+					if m.trace["file"] {
+						log.Printf("FILE: %q: %v", p, err)
+					}
+					return nil
+				}
+				defer fd.Close()
+
+				blocks, err := Blocks(fd, BlockSize)
+				if err != nil {
+					if m.trace["file"] {
+						log.Printf("FILE: %q: %v", p, err)
+					}
+					return nil
+				}
+				f := File{
+					Name:     rn,
+					Flags:    uint32(info.Mode()),
+					Modified: modified,
+					Blocks:   blocks,
+				}
+				*res = append(*res, f)
+			}
+		}
+
+		return nil
+	}
+}
+
+// Walk returns the list of files found in the local repository by scanning the
+// file system. Files are blockwise hashed.
+func (m *Model) Walk(followSymlinks bool) (files []File, ignore map[string][]string) {
+	ignore = make(map[string][]string)
+	fn := m.genWalker(&files, ignore)
+	filepath.Walk(m.dir, fn)
+
+	if followSymlinks {
+		d, err := os.Open(m.dir)
+		if err != nil {
+			return
+		}
+		defer d.Close()
+
+		fis, err := d.Readdir(-1)
+		if err != nil {
+			return
+		}
+
+		for _, fi := range fis {
+			if fi.Mode()&os.ModeSymlink != 0 {
+				filepath.Walk(path.Join(m.dir, fi.Name())+"/", fn)
+			}
+		}
+	}
+
+	return
+}
+
+// Walk returns the list of files found in the local repository by scanning the
+// file system. Files are blockwise hashed. Patterns marked in .stignore files
+// are removed from the results.
+func (m *Model) FilteredWalk(followSymlinks bool) []File {
+	var files, ignored = m.Walk(followSymlinks)
+	return ignoreFilter(ignored, files)
+}
+
+func (m *Model) cleanTempFile(path string, info os.FileInfo, err error) error {
+	if err != nil {
+		return err
+	}
+	if info.Mode()&os.ModeType == 0 && isTempName(path) {
+		if m.trace["file"] {
+			log.Printf("FILE: Remove %q", path)
+		}
+		os.Remove(path)
+	}
+	return nil
+}
+
+func (m *Model) cleanTempFiles() {
+	filepath.Walk(m.dir, m.cleanTempFile)
+}
+
+func ignoreFilter(patterns map[string][]string, files []File) (filtered []File) {
+nextFile:
+	for _, f := range files {
+		first, last := path.Split(f.Name)
+		for prefix, pats := range patterns {
+			if len(prefix) == 0 || prefix == first || strings.HasPrefix(first, prefix+"/") {
+				for _, pattern := range pats {
+					if match, _ := path.Match(pattern, last); match {
+						continue nextFile
+					}
+				}
+			}
+		}
+		filtered = append(filtered, f)
+	}
+	return filtered
+}

model/walk_test.go

@@ -0,0 +1,102 @@
+package model
+
+import (
+	"fmt"
+	"reflect"
+	"testing"
+	"time"
+)
+
+var testdata = []struct {
+	name string
+	size int
+	hash string
+}{
+	{"bar", 10, "2f72cc11a6fcd0271ecef8c61056ee1eb1243be3805bf9a9df98f92f7636b05c"},
+	{"baz/quux", 9, "c154d94e94ba7298a6adb0523afe34d1b6a581d6b893a763d45ddc5e209dcb83"},
+	{"foo", 7, "aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f"},
+}
+
+var correctIgnores = map[string][]string{
+	"": {".*", "quux"},
+}
+
+func TestWalk(t *testing.T) {
+	m := NewModel("testdata")
+	files, ignores := m.Walk(false)
+
+	if l1, l2 := len(files), len(testdata); l1 != l2 {
+		t.Fatalf("Incorrect number of walked files %d != %d", l1, l2)
+	}
+
+	for i := range testdata {
+		if n1, n2 := testdata[i].name, files[i].Name; n1 != n2 {
+			t.Errorf("Incorrect file name %q != %q for case #%d", n1, n2, i)
+		}
+
+		if h1, h2 := fmt.Sprintf("%x", files[i].Blocks[0].Hash), testdata[i].hash; h1 != h2 {
+			t.Errorf("Incorrect hash %q != %q for case #%d", h1, h2, i)
+		}
+
+		t0 := time.Date(2010, 1, 1, 0, 0, 0, 0, time.UTC).Unix()
+		t1 := time.Date(2020, 1, 1, 0, 0, 0, 0, time.UTC).Unix()
+		if mt := files[i].Modified; mt < t0 || mt > t1 {
+			t.Errorf("Unrealistic modtime %d for test %d", mt, i)
+		}
+	}
+
+	if !reflect.DeepEqual(ignores, correctIgnores) {
+		t.Errorf("Incorrect ignores\n  %v\n  %v", correctIgnores, ignores)
+	}
+}
+
+func TestFilteredWalk(t *testing.T) {
+	m := NewModel("testdata")
+	files := m.FilteredWalk(false)
+
+	if len(files) != 2 {
+		t.Fatalf("Incorrect number of walked filtered files %d != 2", len(files))
+	}
+	if files[0].Name != "bar" {
+		t.Error("Incorrect first file", files[0])
+	}
+	if files[1].Name != "foo" {
+		t.Error("Incorrect second file", files[1])
+	}
+}
+
+func TestIgnore(t *testing.T) {
+	var patterns = map[string][]string{
+		"":        {"t2"},
+		"foo":     {"bar", "z*"},
+		"foo/baz": {"quux", ".*"},
+	}
+	var files = []File{
+		{Name: "foo/bar"},
+		{Name: "foo/quux"},
+		{Name: "foo/zuux"},
+		{Name: "foo/qzuux"},
+		{Name: "foo/baz/t1"},
+		{Name: "foo/baz/t2"},
+		{Name: "foo/baz/bar"},
+		{Name: "foo/baz/quuxa"},
+		{Name: "foo/baz/aquux"},
+		{Name: "foo/baz/.quux"},
+		{Name: "foo/baz/zquux"},
+		{Name: "foo/baz/quux"},
+		{Name: "foo/bazz/quux"},
+	}
+	var remaining = []File{
+		{Name: "foo/quux"},
+		{Name: "foo/qzuux"},
+		{Name: "foo/baz/t1"},
+		{Name: "foo/baz/quuxa"},
+		{Name: "foo/baz/aquux"},
+		{Name: "foo/bazz/quux"},
+	}
+
+	var filtered = ignoreFilter(patterns, files)
+	if !reflect.DeepEqual(filtered, remaining) {
+		t.Errorf("Filtering mismatch\n  %v\n  %v", remaining, filtered)
+	}
+}

protocol/PROTOCOL.md

@@ -9,7 +9,7 @@ Each node has a _repository_ of files described by the _local model_,
 containing modifications times and block hashes. The local model is sent
 to the other nodes in the cluster. The union of all files in the local
 models, with files selected for most recent modification time, forms the
-_global model_. Each node strives to get it's repository in synch with
+_global model_. Each node strives to get it's repository in sync with
 the global model by requesting missing blocks from the other nodes.
 
 Transport and Authentication

protocol/protocol.go

@@ -60,7 +60,6 @@ type Connection struct {
 	hasSentIndex  bool
 	hasRecvdIndex bool
 
-	lastStatistics Statistics
 	statisticsLock sync.Mutex
 }
 
@@ -84,14 +83,13 @@ func NewConnection(nodeID string, reader io.Reader, writer io.Writer, receiver M
 	}
 
 	c := Connection{
-		receiver:       receiver,
-		reader:         flrd,
-		mreader:        &marshalReader{r: flrd},
-		writer:         flwr,
-		mwriter:        &marshalWriter{w: flwr},
-		awaiting:       make(map[int]chan asyncResult),
-		ID:             nodeID,
-		lastStatistics: Statistics{At: time.Now()},
+		receiver: receiver,
+		reader:   flrd,
+		mreader:  &marshalReader{r: flrd},
+		writer:   flwr,
+		mwriter:  &marshalWriter{w: flwr},
+		awaiting: make(map[int]chan asyncResult),
+		ID:       nodeID,
 	}
 
 	go c.readerLoop()
@@ -373,27 +371,20 @@ func (c *Connection) pingerLoop() {
 }
 
 type Statistics struct {
-	At             time.Time
-	InBytesTotal   int
-	InBytesPerSec  int
-	OutBytesTotal  int
-	OutBytesPerSec int
+	At            time.Time
+	InBytesTotal  int
+	OutBytesTotal int
 }
 
 func (c *Connection) Statistics() Statistics {
 	c.statisticsLock.Lock()
 	defer c.statisticsLock.Unlock()
 
-	secs := time.Since(c.lastStatistics.At).Seconds()
-	rt := int(c.mreader.getTot())
-	wt := int(c.mwriter.getTot())
 	stats := Statistics{
-		At:             time.Now(),
-		InBytesTotal:   rt,
-		InBytesPerSec:  int(float64(rt-c.lastStatistics.InBytesTotal) / secs),
-		OutBytesTotal:  wt,
-		OutBytesPerSec: int(float64(wt-c.lastStatistics.OutBytesTotal) / secs),
+		At:            time.Now(),
+		InBytesTotal:  int(c.mreader.getTot()),
+		OutBytesTotal: int(c.mwriter.getTot()),
 	}
-	c.lastStatistics = stats
+
 	return stats
 }

util.go

@@ -1,7 +1,29 @@
 package main
 
-import "time"
+import "fmt"
 
-func timing(name string, t0 time.Time) {
-	debugf("%s: %.02f ms", name, time.Since(t0).Seconds()*1000)
+func MetricPrefix(n int) string {
+	if n > 1e9 {
+		return fmt.Sprintf("%.02f G", float64(n)/1e9)
+	}
+	if n > 1e6 {
+		return fmt.Sprintf("%.02f M", float64(n)/1e6)
+	}
+	if n > 1e3 {
+		return fmt.Sprintf("%.01f k", float64(n)/1e3)
+	}
+	return fmt.Sprintf("%d ", n)
+}
+
+func BinaryPrefix(n int) string {
+	if n > 1<<30 {
+		return fmt.Sprintf("%.02f Gi", float64(n)/(1<<30))
+	}
+	if n > 1<<20 {
+		return fmt.Sprintf("%.02f Mi", float64(n)/(1<<20))
+	}
+	if n > 1<<10 {
+		return fmt.Sprintf("%.01f Ki", float64(n)/(1<<10))
+	}
+	return fmt.Sprintf("%d ", n)
 }

walk.go

@@ -1,154 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"os"
-	"path"
-	"path/filepath"
-	"strings"
-)
-
-const BlockSize = 128 * 1024
-
-type File struct {
-	Name     string
-	Flags    uint32
-	Modified int64
-	Blocks   BlockList
-}
-
-func (f File) Dump() {
-	fmt.Printf("%s\n", f.Name)
-	for _, b := range f.Blocks {
-		fmt.Printf("  %dB @ %d: %x\n", b.Length, b.Offset, b.Hash)
-	}
-	fmt.Println()
-}
-
-func (f File) Size() (bytes int) {
-	for _, b := range f.Blocks {
-		bytes += int(b.Length)
-	}
-	return
-}
-
-func isTempName(name string) bool {
-	return strings.HasPrefix(path.Base(name), ".syncthing.")
-}
-
-func tempName(name string, modified int64) string {
-	tdir := path.Dir(name)
-	tname := fmt.Sprintf(".syncthing.%s.%d", path.Base(name), modified)
-	return path.Join(tdir, tname)
-}
-
-func genWalker(base string, res *[]File, model *Model) filepath.WalkFunc {
-	return func(p string, info os.FileInfo, err error) error {
-		if err != nil {
-			warnln(err)
-			return nil
-		}
-
-		if isTempName(p) {
-			return nil
-		}
-
-		if info.Mode()&os.ModeType == 0 {
-			rn, err := filepath.Rel(base, p)
-			if err != nil {
-				warnln(err)
-				return nil
-			}
-
-			fi, err := os.Stat(p)
-			if err != nil {
-				warnln(err)
-				return nil
-			}
-			modified := fi.ModTime().Unix()
-
-			hf, ok := model.LocalFile(rn)
-			if ok && hf.Modified == modified {
-				// No change
-				*res = append(*res, hf)
-			} else {
-				if opts.Debug.TraceFile {
-					debugf("FILE: Hash %q", p)
-				}
-				fd, err := os.Open(p)
-				if err != nil {
-					warnln(err)
-					return nil
-				}
-				defer fd.Close()
-
-				blocks, err := Blocks(fd, BlockSize)
-				if err != nil {
-					warnln(err)
-					return nil
-				}
-				f := File{
-					Name:     rn,
-					Flags:    uint32(info.Mode()),
-					Modified: modified,
-					Blocks:   blocks,
-				}
-				*res = append(*res, f)
-			}
-		}
-
-		return nil
-	}
-}
-
-func Walk(dir string, model *Model, followSymlinks bool) []File {
-	var files []File
-	fn := genWalker(dir, &files, model)
-	err := filepath.Walk(dir, fn)
-	if err != nil {
-		warnln(err)
-	}
-
-	if !opts.NoSymlinks {
-		d, err := os.Open(dir)
-		if err != nil {
-			warnln(err)
-			return files
-		}
-		defer d.Close()
-
-		fis, err := d.Readdir(-1)
-		if err != nil {
-			warnln(err)
-			return files
-		}
-
-		for _, fi := range fis {
-			if fi.Mode()&os.ModeSymlink != 0 {
-				err := filepath.Walk(path.Join(dir, fi.Name())+"/", fn)
-				if err != nil {
-					warnln(err)
-				}
-			}
-		}
-	}
-
-	return files
-}
-
-func cleanTempFile(path string, info os.FileInfo, err error) error {
-	if err != nil {
-		return err
-	}
-	if info.Mode()&os.ModeType == 0 && isTempName(path) {
-		if opts.Debug.TraceFile {
-			debugf("FILE: Remove %q", path)
-		}
-		os.Remove(path)
-	}
-	return nil
-}
-
-func CleanTempFiles(dir string) {
-	filepath.Walk(dir, cleanTempFile)
-}

walk_test.go

@@ -1,42 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"testing"
-	"time"
-)
-
-var testdata = []struct {
-	name string
-	size int
-	hash string
-}{
-	{"bar", 10, "2f72cc11a6fcd0271ecef8c61056ee1eb1243be3805bf9a9df98f92f7636b05c"},
-	{"baz/quux", 9, "c154d94e94ba7298a6adb0523afe34d1b6a581d6b893a763d45ddc5e209dcb83"},
-	{"foo", 7, "aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f"},
-}
-
-func TestWalk(t *testing.T) {
-	m := new(Model)
-	files := Walk("testdata", m, false)
-
-	if l1, l2 := len(files), len(testdata); l1 != l2 {
-		t.Fatalf("Incorrect number of walked files %d != %d", l1, l2)
-	}
-
-	for i := range testdata {
-		if n1, n2 := testdata[i].name, files[i].Name; n1 != n2 {
-			t.Errorf("Incorrect file name %q != %q for case #%d", n1, n2, i)
-		}
-
-		if h1, h2 := fmt.Sprintf("%x", files[i].Blocks[0].Hash), testdata[i].hash; h1 != h2 {
-			t.Errorf("Incorrect hash %q != %q for case #%d", h1, h2, i)
-		}
-
-		t0 := time.Date(2010, 1, 1, 0, 0, 0, 0, time.UTC).Unix()
-		t1 := time.Date(2020, 1, 1, 0, 0, 0, 0, time.UTC).Unix()
-		if mt := files[i].Modified; mt < t0 || mt > t1 {
-			t.Errorf("Unrealistic modtime %d for test %d", mt, i)
-		}
-	}
-}