Merge pull request #18 from jpjp/patch-1

synch -> sync

.gitignore

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

README.md

@@ -28,6 +28,8 @@ agents and a simpler approach will suffice.
 Features
 --------
 
+> To request features and file bugs, see [the issue tracker][issues].
+
 The following features are _currently implemented and working_:
 
  * The formation of a cluster of nodes, certificate authenticated and
@@ -50,13 +52,13 @@ The following features are _currently implemented and working_:
  * Synchronizing multiple unrelated directory trees by following
    symlinks directly below the repository level.
 
+ * HTTP GUI.
+
 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:
 
@@ -68,7 +70,8 @@ the future:
    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
+[discover.go]: https://github.com/calmh/syncthing/blob/master/discover/discover.go
+[issues]: https://github.com/calmh/syncthing/issues
 
 Security
 --------
@@ -85,6 +88,9 @@ 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.
 
+Incoming requests for file data are verified to the extent that the
+requested file name must exist in the local index and the global model.
+
 Installing
 ==========
 
@@ -93,9 +99,9 @@ Download the appropriate precompiled binary from the
 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`
+the latest version from source. `go get` works as expected but builds
+a binary without GUI capabilities. Use the included `build.sh` script
+without parameters to build a syncthing with GUI.
 
 Usage
 =====
@@ -115,8 +121,8 @@ 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: wrote cert.pem
-11:34:13 tls.go:67: OK: wrote key.pem
+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
 ```
@@ -159,13 +165,39 @@ $ syncthing --ro
 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: OK: Connected to node CUGAE43Y5N64CRJU26YFH6MTWPSBLSUL
+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.
 
+GUI
+---
+
+The web based GUI is disabled per default. To enable and access it you
+must start syncthing with the `--gui` command line option, giving a
+listen address. For example:
+
+```
+$ syncthing --gui 127.0.0.1:8080
+```
+
+You then point your browser to the given address.
+
+Excluding Files
+---------------
+
+syncthing looks for files named `.stignore` while walking the
+repository. The file is expected to contain glob patterns of file names
+to ignore. Patterns are matched on file name only and apply to files in
+the same directory as the `.stignore` file and in directories lower down
+in the hierarchy.
+
 License
 =======
 

build.sh

@@ -1,25 +1,48 @@
 #!/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
+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 "$name" \
-		&& tar zcf "$name.tar.gz" "$name" \
-		&& rm -r  "$name" \
-		&& mv "$name.tar.gz" build
+	for goos in darwin linux freebsd ; do
+		for goarch in amd64 386 ; do
+			echo "$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 $version" \
+				&& nrsc syncthing.exe gui \
+				&& mkdir -p "$name" \
+				&& cp syncthing.exe "$buildDir/$name.exe" \
+				&& cp README.md LICENSE "$name" \
+				&& zip -qr "$buildDir/$name.zip" "$name" \
+				&& rm -r  "$name"
+		done
+	done
+fi

discover/discover.go

@@ -238,7 +238,7 @@ func (d *Discoverer) externalLookup(node string) (string, bool) {
 		return "", false
 	}
 
-	var buf = buffers.Get(1024)
+	var buf = buffers.Get(256)
 	defer buffers.Put(buf)
 
 	n, err := conn.Read(buf)

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
+*/
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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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+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.$render=
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+E.text(d.label=r.label),d.id!==r.id&&E.val(d.id=r.id),E[0].selected!==r.selected&&E.prop("selected",d.selected=r.selected)):(""===r.id&&y?H=y:(H=u.clone()).val(r.id).attr("selected",r.selected).text(r.label),v.push({element:H,label:r.label,id:r.id,selected:r.selected}),E?E.after(H):t.element.append(H),E=H);for(z++;v.length>z;)v.pop().element.remove()}for(;x.length>I;)x.pop()[0].element.remove()}var k;if(!(k=t.match(d)))throw Ee("iexp",t,ga(f));var m=c(k[2]||k[1]),l=k[4]||k[6],n=k[5],p=c(k[3]||""),
+q=c(k[2]?k[1]:l),A=c(k[7]),w=k[8]?c(k[8]):null,x=[[{element:f,label:""}]];y&&(a(y)(e),y.removeClass("ng-scope"),y.remove());f.empty();f.on("change",function(){e.$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>

logger.go

@@ -6,21 +6,16 @@ import (
 	"os"
 )
 
-var debugEnabled = true
-var logger = log.New(os.Stderr, "", log.Lshortfile|log.Ltime)
+var logger = log.New(os.Stderr, "", log.Ltime)
 
 func debugln(vals ...interface{}) {
-	if debugEnabled {
-		s := fmt.Sprintln(vals...)
-		logger.Output(2, "DEBUG: "+s)
-	}
+	s := fmt.Sprintln(vals...)
+	logger.Output(2, "DEBUG: "+s)
 }
 
 func debugf(format string, vals ...interface{}) {
-	if debugEnabled {
-		s := fmt.Sprintf(format, vals...)
-		logger.Output(2, "DEBUG: "+s)
-	}
+	s := fmt.Sprintf(format, vals...)
+	logger.Output(2, "DEBUG: "+s)
 }
 
 func infoln(vals ...interface{}) {

main.go

@@ -1,9 +1,8 @@
 package main
 
 import (
-	"crypto/sha1"
+	"compress/gzip"
 	"crypto/tls"
-	"fmt"
 	"log"
 	"net"
 	"net/http"
@@ -17,6 +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"
 )
 
@@ -25,17 +25,20 @@ type Options struct {
 	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"`
 	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 {
-	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 {
@@ -46,8 +49,8 @@ type DiscoveryOptions struct {
 }
 
 type AdvancedOptions struct {
-	RequestsInFlight int           `long:"reqs-in-flight" description:"Parallell in flight requests per file" default:"8" value-name:"REQS"`
-	FilesInFlight    int           `long:"files-in-flight" description:"Parallell in flight file pulls" default:"4" value-name:"FILES"`
+	RequestsInFlight int           `long:"reqs-in-flight" description:"Parallell in flight requests per file" default:"4" value-name:"REQS"`
+	FilesInFlight    int           `long:"files-in-flight" description:"Parallell in flight file pulls" default:"8" value-name:"FILES"`
 	ScanInterval     time.Duration `long:"scan-intv" description:"Repository scan interval" default:"60s" value-name:"INTV"`
 	ConnInterval     time.Duration `long:"conn-intv" description:"Node reconnect interval" default:"60s" value-name:"INTV"`
 }
@@ -56,7 +59,6 @@ var opts Options
 var Version string = "unknown-dev"
 
 const (
-	confDirName  = ".syncthing"
 	confFileName = "syncthing.ini"
 )
 
@@ -65,32 +67,25 @@ var (
 	nodeAddrs = make(map[string][]string)
 )
 
-// Options
-var (
-	ConfDir = path.Join(getHomeDir(), confDirName)
-)
-
 func main() {
-	// Useful for debugging; to be adjusted.
-	log.SetFlags(log.Ltime | log.Lshortfile)
-
 	_, err := flags.Parse(&opts)
 	if err != nil {
 		os.Exit(0)
 	}
-	if strings.HasPrefix(opts.ConfDir, "~/") {
-		opts.ConfDir = strings.Replace(opts.ConfDir, "~", getHomeDir(), 1)
+	if len(opts.Debug.TraceModel) > 0 || opts.Debug.LogSource {
+		logger = log.New(os.Stderr, "", log.Lshortfile|log.Ldate|log.Ltime|log.Lmicroseconds)
 	}
+	opts.ConfDir = expandTilde(opts.ConfDir)
 
 	infoln("Version", Version)
 
 	// Ensure that our home directory exists and that we have a certificate and key.
 
-	ensureDir(ConfDir, 0700)
-	cert, err := loadCert(ConfDir)
+	ensureDir(opts.ConfDir, 0700)
+	cert, err := loadCert(opts.ConfDir)
 	if err != nil {
-		newCertificate(ConfDir)
-		cert, err = loadCert(ConfDir)
+		newCertificate(opts.ConfDir)
+		cert, err = loadCert(opts.ConfDir)
 		fatalErr(err)
 	}
 
@@ -119,7 +114,7 @@ func main() {
 
 	// Load the configuration file, if it exists.
 
-	cf, err := os.Open(path.Join(ConfDir, confFileName))
+	cf, err := os.Open(path.Join(opts.ConfDir, confFileName))
 	if err != nil {
 		fatalln("No config file")
 		config = ini.Config{}
@@ -127,7 +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.
@@ -138,13 +133,24 @@ 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.
 
-	infoln("Initial repository scan in progress")
-	loadIndex(m)
+	if !opts.Rehash {
+		infoln("Loading index cache")
+		loadIndex(m)
+	}
+	infoln("Populating repository index")
 	updateLocalModel(m)
 
 	// Routine to listen for incoming connections
@@ -158,10 +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.Delete {
+			infoln("Deletes from peer nodes are allowed")
+		} else {
+			infoln("Deletes from peer nodes will be ignored")
+		}
+		okln("Ready to synchronize (read-write)")
+		m.StartRW(opts.Delete, 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.
@@ -173,10 +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)
 
@@ -188,7 +235,7 @@ listen:
 			continue
 		}
 
-		if opts.Debug.TraceNet {
+		if opts.Debug.TraceConnect {
 			debugln("NET: Connect from", conn.RemoteAddr())
 		}
 
@@ -214,9 +261,7 @@ listen:
 
 		for nodeID := range nodeAddrs {
 			if nodeID == remoteID {
-				nc := protocol.NewConnection(remoteID, conn, conn, m)
-				m.AddNode(nc)
-				okln("Connected to nodeID", remoteID, "(in)")
+				m.AddConnection(conn, remoteID)
 				continue listen
 			}
 		}
@@ -224,7 +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)
@@ -267,12 +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
@@ -285,9 +330,7 @@ func connect(myID string, addr string, nodeAddrs map[string][]string, m *Model,
 					continue
 				}
 
-				nc := protocol.NewConnection(nodeID, conn, conn, m)
-				m.AddNode(nc)
-				okln("Connected to node", remoteID, "(out)")
+				m.AddConnection(conn, remoteID)
 				continue nextNode
 			}
 		}
@@ -296,35 +339,47 @@ 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) {
-	fname := fmt.Sprintf("%x.idx", sha1.Sum([]byte(m.Dir())))
-	idxf, err := os.Create(path.Join(ConfDir, fname))
+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 {
 		return
 	}
-	protocol.WriteIndex(idxf, m.ProtocolIndex())
+
+	gzw := gzip.NewWriter(idxf)
+
+	protocol.WriteIndex(gzw, m.ProtocolIndex())
+	gzw.Close()
 	idxf.Close()
+	os.Rename(fullName+".tmp", fullName)
 }
 
-func loadIndex(m *Model) {
-	fname := fmt.Sprintf("%x.idx", sha1.Sum([]byte(m.Dir())))
-	idxf, err := os.Open(path.Join(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
 	}
 	defer idxf.Close()
 
-	idx, err := protocol.ReadIndex(idxf)
+	gzr, err := gzip.NewReader(idxf)
 	if err != nil {
 		return
 	}
-	m.SeedIndex(idx)
+	defer gzr.Close()
+
+	idx, err := protocol.ReadIndex(gzr)
+	if err != nil {
+		return
+	}
+	m.SeedLocal(idx)
 }
 
 func ensureDir(dir string, mode int) {
@@ -338,6 +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"
@@ -27,22 +31,26 @@ type Model struct {
 	sync.RWMutex
 	dir string
 
-	global map[string]File // the latest version of each file as it exists in the cluster
-	local  map[string]File // the files we currently have locally on disk
-	remote map[string]map[string]File
-	need   map[string]bool // the files we need to update
-	nodes  map[string]*protocol.Connection
+	global  map[string]File // the latest version of each file as it exists in the cluster
+	local   map[string]File // the files we currently have locally on disk
+	remote  map[string]map[string]File
+	need    map[string]bool // the files we need to update
+	nodes   map[string]*protocol.Connection
+	rawConn map[string]io.ReadWriteCloser
 
 	updatedLocal int64 // timestamp of last update to local
 	updateGlobal int64 // timestamp of last update to remote
 
 	lastIdxBcast        time.Time
 	lastIdxBcastRequest time.Time
-}
 
-var (
-	errNoSuchNode = errors.New("no such node")
-)
+	rwRunning      bool
+	parallellFiles int
+	paralllelReqs  int
+	delete         bool
+
+	trace map[string]bool
+}
 
 const (
 	FlagDeleted = 1 << 12
@@ -51,6 +59,11 @@ const (
 	idxBcastMaxDelay = 120 * time.Second // Unless we've already waited this long
 )
 
+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,
@@ -59,108 +72,167 @@ func NewModel(dir string) *Model {
 		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),
 	}
 
-	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) && stats.Latency > 0 {
-			infof("%s: %sB/s in, %sB/s out, %0.02f ms", node, toSI(stats.InBytesPerSec), toSI(stats.OutBytesPerSec), stats.Latency.Seconds()*1000)
-		} else 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]
@@ -169,7 +241,7 @@ 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
 		}
@@ -180,39 +252,40 @@ 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) {
+// 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()
 
-	m.local = make(map[string]File)
-	for _, f := range fs {
-		m.local[f.Name] = fileFromFileInfo(f)
-	}
-
-	m.recomputeGlobal()
-	m.recomputeNeed()
-	m.printModelStats()
-}
-
-func (m *Model) Close(node string) {
-	m.Lock()
-	defer m.Unlock()
-
-	if opts.Debug.TraceNet {
-		debugf("NET CLOSE: %s", node)
+	conn, ok := m.rawConn[node]
+	if ok {
+		conn.Close()
 	}
 
 	delete(m.remote, node)
 	delete(m.nodes, node)
+	delete(m.rawConn, node)
 
 	m.recomputeGlobal()
 	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?
@@ -230,21 +303,7 @@ 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, errNoSuchNode
-	}
-
-	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.
 func (m *Model) ReplaceLocal(fs []File) {
 	m.Lock()
 	defer m.Unlock()
@@ -276,6 +335,95 @@ 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)
+	}()
+}
+
+// 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()
@@ -292,8 +440,8 @@ 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)
@@ -331,10 +479,7 @@ 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()
@@ -344,36 +489,6 @@ 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)
@@ -416,6 +531,17 @@ 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
 		}
 	}
@@ -435,53 +561,6 @@ 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) AddNode(node *protocol.Connection) {
-	m.Lock()
-	m.nodes[node.ID] = node
-	m.Unlock()
-	m.RLock()
-	idx := m.protocolIndex()
-	m.RUnlock()
-
-	if opts.Debug.TraceNet {
-		debugf("NET IDX(out/add): %s: %d files", node.ID, len(idx))
-	}
-
-	// Sending the index might take a while if we have many files and a slow
-	// uplink. Return from AddNode in the meantime.
-	go node.Index(idx)
-}
-
 func fileFromFileInfo(f protocol.FileInfo) File {
 	var blocks []Block
 	var offset uint64
@@ -491,7 +570,6 @@ func fileFromFileInfo(f protocol.FileInfo) File {
 			Length: b.Length,
 			Hash:   b.Hash,
 		})
-		buffers.Put(b.Hash)
 		offset += uint64(b.Length)
 	}
 	return File{

model/model_puller.go

@@ -1,4 +1,4 @@
-package main
+package model
 
 /*
 
@@ -18,6 +18,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"log"
 	"os"
 	"path"
 	"sync"
@@ -30,8 +31,13 @@ func (m *Model) pullFile(name string) error {
 	m.RLock()
 	var localFile = m.local[name]
 	var globalFile = m.global[name]
+	var nodeIDs = m.whoHas(name)
 	m.RUnlock()
 
+	if len(nodeIDs) == 0 {
+		return fmt.Errorf("%s: no connected nodes with file available", name)
+	}
+
 	filename := path.Join(m.dir, name)
 	sdir := path.Dir(filename)
 
@@ -45,17 +51,17 @@ func (m *Model) pullFile(name string) error {
 	if err != nil {
 		return err
 	}
-	defer tmpFile.Close()
 
 	contentChan := make(chan content, 32)
 	var applyDone sync.WaitGroup
 	applyDone.Add(1)
 	go func() {
 		applyContent(contentChan, tmpFile)
+		tmpFile.Close()
 		applyDone.Done()
 	}()
 
-	local, remote := localFile.Blocks.To(globalFile.Blocks)
+	local, remote := BlockDiff(localFile.Blocks, globalFile.Blocks)
 	var fetchDone sync.WaitGroup
 
 	// One local copy routine
@@ -77,11 +83,8 @@ func (m *Model) pullFile(name string) error {
 
 	// N remote copy routines
 
-	m.RLock()
-	var nodeIDs = m.whoHas(name)
-	m.RUnlock()
 	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)
 
@@ -91,7 +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
 				}
@@ -110,7 +113,7 @@ func (m *Model) pullFile(name string) error {
 
 	err = hashCheck(tmpFilename, globalFile.Blocks)
 	if err != nil {
-		return fmt.Errorf("%s: %s", path.Base(name), err.Error())
+		return fmt.Errorf("%s: %s (deleting)", path.Base(name), err.Error())
 	}
 
 	err = os.Chtimes(tmpFilename, time.Unix(globalFile.Modified, 0), time.Unix(globalFile.Modified, 0))
@@ -127,7 +130,6 @@ func (m *Model) pullFile(name string) error {
 }
 
 func (m *Model) puller() {
-
 	for {
 		time.Sleep(time.Second)
 
@@ -142,41 +144,49 @@ 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 {
 			limiter <- true
+			allDone.Add(1)
 
 			go func(n string) {
 				defer func() {
+					allDone.Done()
 					<-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)
 		}
+
+		allDone.Wait()
 	}
 }
 
@@ -190,10 +200,10 @@ func applyContent(cc <-chan content, dst io.WriterAt) error {
 
 	for c := range cc {
 		_, err = dst.WriteAt(c.data, c.offset)
+		buffers.Put(c.data)
 		if err != nil {
 			return err
 		}
-		buffers.Put(c.data)
 	}
 
 	return nil

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 {
@@ -294,7 +306,7 @@ func TestForgetNode(t *testing.T) {
 		t.Errorf("Model len(need) incorrect (%d != %d)", l1, l2)
 	}
 
-	m.Close("42")
+	m.Close("42", nil)
 
 	if l1, l2 := len(m.local), len(fs); l1 != l2 {
 		t.Errorf("Model len(local) incorrect (%d != %d)", l1, l2)
@@ -306,3 +318,25 @@ 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))
+	}
+}

model/testdata/.stignore

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

model/walk.go

@@ -0,0 +1,181 @@
+package model
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"path"
+	"path/filepath"
+	"strings"
+)
+
+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 {
+				if m.trace["file"] {
+					log.Printf("FILE: Hash %q", p)
+				}
+				fd, err := os.Open(p)
+				if err != nil {
+					return nil
+				}
+				defer fd.Close()
+
+				blocks, err := Blocks(fd, BlockSize)
+				if err != nil {
+					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/common_test.go

@@ -25,7 +25,7 @@ func (t *TestModel) Request(nodeID, name string, offset uint64, size uint32, has
 	return t.data, nil
 }
 
-func (t *TestModel) Close(nodeID string) {
+func (t *TestModel) Close(nodeID string, err error) {
 	t.closed = true
 }
 

protocol/protocol.go

@@ -3,8 +3,8 @@ package protocol
 import (
 	"compress/flate"
 	"errors"
+	"fmt"
 	"io"
-	"log"
 	"sync"
 	"time"
 
@@ -40,29 +40,27 @@ type Model interface {
 	// A request was made by the peer node
 	Request(nodeID, name string, offset uint64, size uint32, hash []byte) ([]byte, error)
 	// The peer node closed the connection
-	Close(nodeID string)
+	Close(nodeID string, err error)
 }
 
 type Connection struct {
 	sync.RWMutex
 
-	ID          string
-	receiver    Model
-	reader      io.Reader
-	mreader     *marshalReader
-	writer      io.Writer
-	mwriter     *marshalWriter
-	closed      bool
-	awaiting    map[int]chan asyncResult
-	nextId      int
-	peerLatency time.Duration
-	indexSent   map[string]int64
+	ID        string
+	receiver  Model
+	reader    io.Reader
+	mreader   *marshalReader
+	writer    io.Writer
+	mwriter   *marshalWriter
+	closed    bool
+	awaiting  map[int]chan asyncResult
+	nextId    int
+	indexSent map[string]int64
+
+	hasSentIndex  bool
+	hasRecvdIndex bool
 
-	lastStatistics Statistics
 	statisticsLock sync.Mutex
-
-	lastReceive     time.Time
-	lastReceiveLock sync.RWMutex
 }
 
 var ErrClosed = errors.New("Connection closed")
@@ -72,8 +70,10 @@ type asyncResult struct {
 	err error
 }
 
-const pingTimeout = 30 * time.Second
-const pingIdleTime = 5 * time.Minute
+const (
+	pingTimeout  = 2 * time.Minute
+	pingIdleTime = 5 * time.Minute
+)
 
 func NewConnection(nodeID string, reader io.Reader, writer io.Writer, receiver Model) *Connection {
 	flrd := flate.NewReader(reader)
@@ -83,15 +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),
-		lastReceive:    time.Now(),
-		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()
@@ -103,7 +101,6 @@ func NewConnection(nodeID string, reader io.Reader, writer io.Writer, receiver M
 // Index writes the list of file information to the connected peer node
 func (c *Connection) Index(idx []FileInfo) {
 	c.Lock()
-
 	var msgType int
 	if c.indexSent == nil {
 		// This is the first time we send an index.
@@ -130,32 +127,38 @@ func (c *Connection) Index(idx []FileInfo) {
 	c.mwriter.writeIndex(idx)
 	err := c.flush()
 	c.nextId = (c.nextId + 1) & 0xfff
+	c.hasSentIndex = true
 	c.Unlock()
-	if err != nil || c.mwriter.err != nil {
-		c.close()
+
+	if err != nil {
+		c.Close(err)
+		return
+	} else if c.mwriter.err != nil {
+		c.Close(c.mwriter.err)
 		return
 	}
 }
 
 // Request returns the bytes for the specified block after fetching them from the connected peer.
 func (c *Connection) Request(name string, offset uint64, size uint32, hash []byte) ([]byte, error) {
-	if c.isClosed() {
+	c.Lock()
+	if c.closed {
+		c.Unlock()
 		return nil, ErrClosed
 	}
-	c.Lock()
 	rc := make(chan asyncResult)
 	c.awaiting[c.nextId] = rc
 	c.mwriter.writeHeader(header{0, c.nextId, messageTypeRequest})
 	c.mwriter.writeRequest(request{name, offset, size, hash})
 	if c.mwriter.err != nil {
 		c.Unlock()
-		c.close()
+		c.Close(c.mwriter.err)
 		return nil, c.mwriter.err
 	}
 	err := c.flush()
 	if err != nil {
 		c.Unlock()
-		c.close()
+		c.Close(err)
 		return nil, err
 	}
 	c.nextId = (c.nextId + 1) & 0xfff
@@ -168,26 +171,30 @@ func (c *Connection) Request(name string, offset uint64, size uint32, hash []byt
 	return res.val, res.err
 }
 
-func (c *Connection) Ping() (time.Duration, bool) {
-	if c.isClosed() {
-		return 0, false
-	}
+func (c *Connection) Ping() bool {
 	c.Lock()
-	rc := make(chan asyncResult)
+	if c.closed {
+		c.Unlock()
+		return false
+	}
+	rc := make(chan asyncResult, 1)
 	c.awaiting[c.nextId] = rc
-	t0 := time.Now()
 	c.mwriter.writeHeader(header{0, c.nextId, messageTypePing})
 	err := c.flush()
-	if err != nil || c.mwriter.err != nil {
+	if err != nil {
 		c.Unlock()
-		c.close()
-		return 0, false
+		c.Close(err)
+		return false
+	} else if c.mwriter.err != nil {
+		c.Unlock()
+		c.Close(c.mwriter.err)
+		return false
 	}
 	c.nextId = (c.nextId + 1) & 0xfff
 	c.Unlock()
 
-	_, ok := <-rc
-	return time.Since(t0), ok
+	res, ok := <-rc
+	return ok && res.err == nil
 }
 
 func (c *Connection) Stop() {
@@ -204,7 +211,7 @@ func (c *Connection) flush() error {
 	return nil
 }
 
-func (c *Connection) close() {
+func (c *Connection) Close(err error) {
 	c.Lock()
 	if c.closed {
 		c.Unlock()
@@ -217,7 +224,7 @@ func (c *Connection) close() {
 	c.awaiting = nil
 	c.Unlock()
 
-	c.receiver.Close(c.ID)
+	c.receiver.Close(c.ID, err)
 }
 
 func (c *Connection) isClosed() bool {
@@ -227,59 +234,63 @@ func (c *Connection) isClosed() bool {
 }
 
 func (c *Connection) readerLoop() {
-	for !c.isClosed() {
+loop:
+	for {
 		hdr := c.mreader.readHeader()
 		if c.mreader.err != nil {
-			c.close()
-			break
+			c.Close(c.mreader.err)
+			break loop
 		}
 		if hdr.version != 0 {
-			log.Printf("Protocol error: %s: unknown message version %#x", c.ID, hdr.version)
-			c.close()
-			break
+			c.Close(fmt.Errorf("Protocol error: %s: unknown message version %#x", c.ID, hdr.version))
+			break loop
 		}
 
-		c.lastReceiveLock.Lock()
-		c.lastReceive = time.Now()
-		c.lastReceiveLock.Unlock()
-
 		switch hdr.msgType {
 		case messageTypeIndex:
 			files := c.mreader.readIndex()
 			if c.mreader.err != nil {
-				c.close()
+				c.Close(c.mreader.err)
+				break loop
 			} else {
 				c.receiver.Index(c.ID, files)
 			}
+			c.Lock()
+			c.hasRecvdIndex = true
+			c.Unlock()
 
 		case messageTypeIndexUpdate:
 			files := c.mreader.readIndex()
 			if c.mreader.err != nil {
-				c.close()
+				c.Close(c.mreader.err)
+				break loop
 			} else {
 				c.receiver.IndexUpdate(c.ID, files)
 			}
 
 		case messageTypeRequest:
-			c.processRequest(hdr.msgID)
+			req := c.mreader.readRequest()
+			if c.mreader.err != nil {
+				c.Close(c.mreader.err)
+				break loop
+			}
+			go c.processRequest(hdr.msgID, req)
 
 		case messageTypeResponse:
 			data := c.mreader.readResponse()
 
 			if c.mreader.err != nil {
-				c.close()
+				c.Close(c.mreader.err)
+				break loop
 			} else {
-				c.RLock()
+				c.Lock()
 				rc, ok := c.awaiting[hdr.msgID]
-				c.RUnlock()
+				delete(c.awaiting, hdr.msgID)
+				c.Unlock()
 
 				if ok {
 					rc <- asyncResult{data, c.mreader.err}
 					close(rc)
-
-					c.Lock()
-					delete(c.awaiting, hdr.msgID)
-					c.Unlock()
 				}
 			}
 
@@ -288,8 +299,12 @@ func (c *Connection) readerLoop() {
 			c.mwriter.writeUint32(encodeHeader(header{0, hdr.msgID, messageTypePong}))
 			err := c.flush()
 			c.Unlock()
-			if err != nil || c.mwriter.err != nil {
-				c.close()
+			if err != nil {
+				c.Close(err)
+				break loop
+			} else if c.mwriter.err != nil {
+				c.Close(c.mwriter.err)
+				break loop
 			}
 
 		case messageTypePong:
@@ -307,83 +322,69 @@ func (c *Connection) readerLoop() {
 			}
 
 		default:
-			log.Printf("Protocol error: %s: unknown message type %#x", c.ID, hdr.msgType)
-			c.close()
+			c.Close(fmt.Errorf("Protocol error: %s: unknown message type %#x", c.ID, hdr.msgType))
+			break loop
 		}
 	}
 }
 
-func (c *Connection) processRequest(msgID int) {
-	req := c.mreader.readRequest()
-	if c.mreader.err != nil {
-		c.close()
-	} else {
-		go func() {
-			data, _ := c.receiver.Request(c.ID, req.name, req.offset, req.size, req.hash)
-			c.Lock()
-			c.mwriter.writeUint32(encodeHeader(header{0, msgID, messageTypeResponse}))
-			c.mwriter.writeResponse(data)
-			err := c.flush()
-			c.Unlock()
-			buffers.Put(data)
-			if c.mwriter.err != nil || err != nil {
-				c.close()
-			}
-		}()
+func (c *Connection) processRequest(msgID int, req request) {
+	data, _ := c.receiver.Request(c.ID, req.name, req.offset, req.size, req.hash)
+
+	c.Lock()
+	c.mwriter.writeUint32(encodeHeader(header{0, msgID, messageTypeResponse}))
+	c.mwriter.writeResponse(data)
+	err := c.flush()
+	c.Unlock()
+
+	buffers.Put(data)
+	if err != nil {
+		c.Close(err)
+	} else if c.mwriter.err != nil {
+		c.Close(c.mwriter.err)
 	}
 }
 
 func (c *Connection) pingerLoop() {
-	var rc = make(chan time.Duration, 1)
-	for !c.isClosed() {
-		c.lastReceiveLock.RLock()
-		lr := c.lastReceive
-		c.lastReceiveLock.RUnlock()
+	var rc = make(chan bool, 1)
+	for {
+		time.Sleep(pingIdleTime / 2)
 
-		if time.Since(lr) > pingIdleTime {
+		c.RLock()
+		ready := c.hasRecvdIndex && c.hasSentIndex
+		c.RUnlock()
+
+		if ready {
 			go func() {
-				t, ok := c.Ping()
-				if ok {
-					rc <- t
-				}
+				rc <- c.Ping()
 			}()
 			select {
-			case lat := <-rc:
-				c.Lock()
-				c.peerLatency = (c.peerLatency + lat) / 2
-				c.Unlock()
+			case ok := <-rc:
+				if !ok {
+					c.Close(fmt.Errorf("Ping failure"))
+				}
 			case <-time.After(pingTimeout):
-				c.close()
+				c.Close(fmt.Errorf("Ping timeout"))
 			}
 		}
-		time.Sleep(time.Second)
 	}
 }
 
 type Statistics struct {
-	At             time.Time
-	InBytesTotal   int
-	InBytesPerSec  int
-	OutBytesTotal  int
-	OutBytesPerSec int
-	Latency        time.Duration
+	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),
-		Latency:        c.peerLatency,
+		At:            time.Now(),
+		InBytesTotal:  int(c.mreader.getTot()),
+		OutBytesTotal: int(c.mwriter.getTot()),
 	}
-	c.lastStatistics = stats
+
 	return stats
 }

protocol/protocol_test.go

@@ -46,10 +46,10 @@ func TestPing(t *testing.T) {
 	c0 := NewConnection("c0", ar, bw, nil)
 	c1 := NewConnection("c1", br, aw, nil)
 
-	if _, ok := c0.Ping(); !ok {
+	if ok := c0.Ping(); !ok {
 		t.Error("c0 ping failed")
 	}
-	if _, ok := c1.Ping(); !ok {
+	if ok := c1.Ping(); !ok {
 		t.Error("c1 ping failed")
 	}
 }
@@ -70,7 +70,7 @@ func TestPingErr(t *testing.T) {
 			c0 := NewConnection("c0", ar, ebw, m0)
 			NewConnection("c1", br, eaw, m1)
 
-			_, res := c0.Ping()
+			res := c0.Ping()
 			if (i < 4 || j < 4) && res {
 				t.Errorf("Unexpected ping success; i=%d, j=%d", i, j)
 			} else if (i >= 8 && j >= 8) && !res {
@@ -190,7 +190,7 @@ func TestClose(t *testing.T) {
 	c0 := NewConnection("c0", ar, bw, m0)
 	NewConnection("c1", br, aw, m1)
 
-	c0.close()
+	c0.Close(nil)
 
 	ok := c0.isClosed()
 	if !ok {
@@ -199,7 +199,7 @@ func TestClose(t *testing.T) {
 
 	// None of these should panic, some should return an error
 
-	_, ok = c0.Ping()
+	ok = c0.Ping()
 	if ok {
 		t.Error("Ping should not return true")
 	}

tls.go

@@ -58,11 +58,11 @@ func newCertificate(dir string) {
 	fatalErr(err)
 	pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes})
 	certOut.Close()
-	okln("wrote cert.pem")
+	okln("Created TLS certificate file")
 
 	keyOut, err := os.OpenFile(path.Join(dir, "key.pem"), os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
 	fatalErr(err)
 	pem.Encode(keyOut, &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(priv)})
 	keyOut.Close()
-	okln("wrote key.pem")
+	okln("Created TLS key file")
 }

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

@@ -1,147 +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 {
-			return err
-		}
-
-		if isTempName(p) {
-			return nil
-		}
-
-		if info.Mode()&os.ModeType == 0 {
-			rn, err := filepath.Rel(base, p)
-			if err != nil {
-				return err
-			}
-
-			fi, err := os.Stat(p)
-			if err != nil {
-				return err
-			}
-			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 {
-					return err
-				}
-				defer fd.Close()
-
-				blocks, err := Blocks(fd, BlockSize)
-				if err != nil {
-					return err
-				}
-				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
-		}
-		fis, err := d.Readdir(-1)
-		if err != nil {
-			warnln(err)
-			return files
-		}
-		d.Close()
-		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)
-		}
-	}
-}