Simple file versioning (fixes #218)
This commit is contained in:
Jakob Borg
parent
dd971b56e5
commit
3d055bbb79
File diff suppressed because one or more lines are too long
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@ -24,6 +24,7 @@ import (
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"github.com/calmh/syncthing/discover"
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"github.com/calmh/syncthing/logger"
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"github.com/calmh/syncthing/model"
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"github.com/calmh/syncthing/osutil"
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"github.com/calmh/syncthing/protocol"
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"github.com/calmh/syncthing/upnp"
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"github.com/juju/ratelimit"
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@ -498,7 +499,7 @@ func saveConfigLoop(cfgFile string) {
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continue
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}
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err = model.Rename(cfgFile+".tmp", cfgFile)
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err = osutil.Rename(cfgFile+".tmp", cfgFile)
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if err != nil {
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l.Warnln(err)
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}
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@ -27,13 +27,56 @@ type Configuration struct {
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}
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type RepositoryConfiguration struct {
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ID string `xml:"id,attr"`
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Directory string `xml:"directory,attr"`
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Nodes []NodeConfiguration `xml:"node"`
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ReadOnly bool `xml:"ro,attr"`
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IgnorePerms bool `xml:"ignorePerms,attr"`
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Invalid string `xml:"-"` // Set at runtime when there is an error, not saved
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nodeIDs []string
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ID string `xml:"id,attr"`
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Directory string `xml:"directory,attr"`
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Nodes []NodeConfiguration `xml:"node"`
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ReadOnly bool `xml:"ro,attr"`
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IgnorePerms bool `xml:"ignorePerms,attr"`
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Invalid string `xml:"-"` // Set at runtime when there is an error, not saved
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Versioning VersioningConfiguration `xml:"versioning"`
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nodeIDs []string
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}
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type VersioningConfiguration struct {
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Type string `xml:"type,attr"`
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Params map[string]string
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}
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type InternalVersioningConfiguration struct {
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Type string `xml:"type,attr,omitempty"`
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Params []InternalParam `xml:"param"`
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}
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type InternalParam struct {
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Key string `xml:"key,attr"`
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Val string `xml:"val,attr"`
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}
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func (c *VersioningConfiguration) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
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var tmp InternalVersioningConfiguration
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tmp.Type = c.Type
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for k, v := range c.Params {
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tmp.Params = append(tmp.Params, InternalParam{k, v})
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}
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return e.EncodeElement(tmp, start)
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}
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func (c *VersioningConfiguration) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
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var tmp InternalVersioningConfiguration
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err := d.DecodeElement(&tmp, &start)
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if err != nil {
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return err
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}
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c.Type = tmp.Type
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c.Params = make(map[string]string, len(tmp.Params))
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for _, p := range tmp.Params {
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c.Params[p.Key] = p.Val
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}
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return nil
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}
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func (r *RepositoryConfiguration) NodeIDs() []string {
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21
gui/app.js
21
gui/app.js
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@ -405,10 +405,16 @@ syncthing.controller('SyncthingCtrl', function ($scope, $http) {
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}
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$scope.editRepo = function (nodeCfg) {
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$scope.currentRepo = $.extend({selectedNodes: {}}, nodeCfg);
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$scope.currentRepo = angular.copy(nodeCfg);
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$scope.currentRepo.selectedNodes = {};
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$scope.currentRepo.Nodes.forEach(function (n) {
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$scope.currentRepo.selectedNodes[n.NodeID] = true;
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});
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if ($scope.currentRepo.Versioning && $scope.currentRepo.Versioning.Type === "simple") {
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$scope.currentRepo.simpleFileVersioning = true;
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$scope.currentRepo.simpleKeep = +$scope.currentRepo.Versioning.Params.keep;
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}
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$scope.currentRepo.simpleKeep = $scope.currentRepo.simpleKeep || 5;
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$scope.editingExisting = true;
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$scope.repoEditor.$setPristine();
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$('#editRepo').modal({backdrop: 'static', keyboard: true});
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@ -436,6 +442,19 @@ syncthing.controller('SyncthingCtrl', function ($scope, $http) {
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}
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delete repoCfg.selectedNodes;
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if (repoCfg.simpleFileVersioning) {
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repoCfg.Versioning = {
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'Type': 'simple',
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'Params': {
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'keep': '' + repoCfg.simpleKeep,
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}
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};
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delete repoCfg.simpleFileVersioning;
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delete repoCfg.simpleKeep;
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} else {
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delete repoCfg.Versioning;
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}
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$scope.repos[repoCfg.ID] = repoCfg;
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$scope.config.Repositories = repoList($scope.repos);
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102
gui/index.html
102
gui/index.html
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@ -455,47 +455,75 @@
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</div>
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<div class="modal-body">
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<form role="form" name="repoEditor">
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<div class="form-group" ng-class="{'has-error': repoEditor.repoID.$invalid && repoEditor.repoID.$dirty}">
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<label for="repoID">Repository ID</label>
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<input name="repoID" placeholder="documents" ng-disabled="editingExisting" id="repoID" class="form-control" type="text" ng-model="currentRepo.ID" required unique-repo></input>
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<p class="help-block">
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<span ng-if="repoEditor.repoID.$valid || repoEditor.repoID.$pristine">Short identifier for the repository. Must be the same on all cluster nodes.</span>
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<span ng-if="repoEditor.repoID.$error.uniqueRepo">The repository ID must be unique.</span>
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<span ng-if="repoEditor.repoID.$error.required && repoEditor.repoID.$dirty">The repository ID cannot be blank.</span>
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</p>
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</div>
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<div class="form-group" ng-class="{'has-error': repoEditor.repoPath.$invalid && repoEditor.repoPath.$dirty}">
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<label for="repoPath">Repository Path</label>
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<input name="repoPath" placeholder="~/Documents" id="repoPath" class="form-control" type="text" ng-model="currentRepo.Directory" required></input>
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<p class="help-block">
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<span ng-if="repoEditor.repoPath.$valid || repoEditor.repoPath.$pristine">Path to the repository on the local computer. Will be created if it does not exist. The tilde character <code>~</code> can be used as a shortcut for <code>{{system.tilde}}</code>.</span>
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<span ng-if="repoEditor.repoPath.$error.required && repoEditor.repoPath.$dirty">The repository path cannot be blank.</span>
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</p>
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</div>
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<div class="form-group">
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<div class="checkbox">
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<label>
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<input type="checkbox" ng-model="currentRepo.ReadOnly"> Repository Master
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</label>
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<div class="row">
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<div class="col-md-12">
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<div class="form-group" ng-class="{'has-error': repoEditor.repoID.$invalid && repoEditor.repoID.$dirty}">
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<label for="repoID">Repository ID</label>
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<input name="repoID" placeholder="documents" ng-disabled="editingExisting" id="repoID" class="form-control" type="text" ng-model="currentRepo.ID" required unique-repo></input>
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<p class="help-block">
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<span ng-if="repoEditor.repoID.$valid || repoEditor.repoID.$pristine">Short identifier for the repository. Must be the same on all cluster nodes.</span>
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<span ng-if="repoEditor.repoID.$error.uniqueRepo">The repository ID must be unique.</span>
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<span ng-if="repoEditor.repoID.$error.required && repoEditor.repoID.$dirty">The repository ID cannot be blank.</span>
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</p>
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</div>
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<div class="form-group" ng-class="{'has-error': repoEditor.repoPath.$invalid && repoEditor.repoPath.$dirty}">
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<label for="repoPath">Repository Path</label>
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<input name="repoPath" placeholder="~/Documents" id="repoPath" class="form-control" type="text" ng-model="currentRepo.Directory" required></input>
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<p class="help-block">
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<span ng-if="repoEditor.repoPath.$valid || repoEditor.repoPath.$pristine">Path to the repository on the local computer. Will be created if it does not exist. The tilde character <code>~</code> can be used as a shortcut for <code>{{system.tilde}}</code>.</span>
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<span ng-if="repoEditor.repoPath.$error.required && repoEditor.repoPath.$dirty">The repository path cannot be blank.</span>
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</p>
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</div>
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</div>
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<p class="help-block">Files are protected from changes made on other nodes, but changes made on <em>this</em> node will be sent to the rest of the cluster.</p>
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</div>
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<div class="form-group">
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<div class="checkbox">
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<label>
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<input type="checkbox" ng-model="currentRepo.IgnorePerms"> Ignore Permissions
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</label>
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<div class="row">
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<div class="col-md-6">
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<div class="form-group">
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<div class="checkbox">
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<label>
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<input type="checkbox" ng-model="currentRepo.ReadOnly"> Repository Master
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</label>
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</div>
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<p class="help-block">Files are protected from changes made on other nodes, but changes made on <em>this</em> node will be sent to the rest of the cluster.</p>
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</div>
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<div class="form-group">
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<div class="checkbox">
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<label>
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<input type="checkbox" ng-model="currentRepo.IgnorePerms"> Ignore Permissions
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</label>
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</div>
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<p class="help-block">File permission bits are ignored when looking for changes. Use on FAT filesystems.</p>
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</div>
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<div class="form-group">
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<label for="nodes">Nodes</label>
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<div class="checkbox" ng-repeat="node in otherNodes()">
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<label>
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<input type="checkbox" ng-model="currentRepo.selectedNodes[node.NodeID]"> {{nodeName(node)}}
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</label>
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</div>
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<p class="help-block">Select the nodes to share this repository with.</p>
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</div>
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</div>
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<p class="help-block">File permission bits are ignored when looking for changes. Use on FAT filesystems.</p>
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</div>
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<div class="form-group">
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<label for="nodes">Nodes</label>
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<div class="checkbox" ng-repeat="node in otherNodes()">
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<label>
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<input type="checkbox" ng-model="currentRepo.selectedNodes[node.NodeID]"> {{nodeName(node)}}
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</label>
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<div class="col-md-6">
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<div class="form-group">
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<div class="checkbox">
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<label>
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<input type="checkbox" ng-model="currentRepo.simpleFileVersioning"> Simple File Versioning
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</label>
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</div>
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<p class="help-block">Files are moved to date stamped versions in a <code>.stversions</code> folder when replaced or deleted by syncthing.</p>
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</div>
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<div class="form-group" ng-if="currentRepo.simpleFileVersioning" ng-class="{'has-error': repoEditor.simpleKeep.$invalid && repoEditor.simpleKeep.$dirty}">
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<label for="simpleKeep">Keep Versions</label>
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<input name="simpleKeep" id="simpleKeep" class="form-control" type="number" ng-model="currentRepo.simpleKeep" required min="1"></input>
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<p class="help-block">
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<span ng-if="repoEditor.simpleKeep.$valid || repoEditor.simpleKeep.$pristine">The number of old versions to keep, per file.</span>
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<span ng-if="repoEditor.simpleKeep.$error.required && repoEditor.simpleKeep.$dirty">The number of versions must be a number and cannot be blank.</span>
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<span ng-if="repoEditor.simpleKeep.$error.min && repoEditor.simpleKeep.$dirty">You must keep at least one version.</span>
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</p>
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</div>
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</div>
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<p class="help-block">Select the nodes to share this repository with.</p>
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</div>
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</form>
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<div ng-show="!editingExisting">
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@ -17,6 +17,7 @@ import (
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"github.com/calmh/syncthing/config"
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"github.com/calmh/syncthing/files"
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"github.com/calmh/syncthing/lamport"
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"github.com/calmh/syncthing/osutil"
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"github.com/calmh/syncthing/protocol"
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"github.com/calmh/syncthing/scanner"
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)
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@ -716,7 +717,7 @@ func (m *Model) saveIndex(repo string, dir string, fs []protocol.FileInfo) {
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gzw.Close()
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idxf.Close()
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Rename(name+".tmp", name)
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osutil.Rename(name+".tmp", name)
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}
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func (m *Model) loadIndex(repo string, dir string) []protocol.FileInfo {
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@ -10,8 +10,10 @@ import (
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"github.com/calmh/syncthing/buffers"
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"github.com/calmh/syncthing/cid"
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"github.com/calmh/syncthing/config"
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"github.com/calmh/syncthing/osutil"
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"github.com/calmh/syncthing/protocol"
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"github.com/calmh/syncthing/scanner"
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"github.com/calmh/syncthing/versioner"
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)
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type requestResult struct {
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@ -71,6 +73,7 @@ type puller struct {
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requestSlots chan bool
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blocks chan bqBlock
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requestResults chan requestResult
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versioner versioner.Versioner
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}
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func newPuller(repoCfg config.RepositoryConfiguration, model *Model, slots int, cfg *config.Configuration) *puller {
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@ -86,6 +89,14 @@ func newPuller(repoCfg config.RepositoryConfiguration, model *Model, slots int,
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requestResults: make(chan requestResult),
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}
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if len(repoCfg.Versioning.Type) > 0 {
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factory, ok := versioner.Factories[repoCfg.Versioning.Type]
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if !ok {
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l.Fatalf("Requested versioning type %q that does not exist", repoCfg.Versioning.Type)
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}
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p.versioner = factory(repoCfg.Versioning.Params)
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}
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if slots > 0 {
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// Read/write
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for i := 0; i < slots; i++ {
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@ -221,6 +232,10 @@ func (p *puller) fixupDirectories() {
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return nil
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}
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if filepath.Base(rn) == ".stversions" {
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return nil
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}
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cur := p.model.CurrentRepoFile(p.repoCfg.ID, rn)
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if cur.Name != rn {
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// No matching dir in current list; weird
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@ -284,10 +299,10 @@ func (p *puller) fixupDirectories() {
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l.Debugln("delete dir:", dir)
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}
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err := os.Remove(dir)
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if err != nil {
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l.Warnln(err)
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} else {
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if err == nil {
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deleted++
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} else if p.versioner == nil { // Failures are expected in the presence of versioning
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l.Warnln(err)
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}
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}
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@ -385,7 +400,7 @@ func (p *puller) handleBlock(b bqBlock) bool {
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}
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return true
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}
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defTempNamer.Hide(of.temp)
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osutil.HideFile(of.temp)
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}
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if of.err != nil {
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@ -524,7 +539,11 @@ func (p *puller) handleEmptyBlock(b bqBlock) {
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}
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os.Remove(of.temp)
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os.Chmod(of.filepath, 0666)
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if err := os.Remove(of.filepath); err == nil || os.IsNotExist(err) {
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if p.versioner != nil {
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if err := p.versioner.Archive(of.filepath); err == nil {
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p.model.updateLocal(p.repoCfg.ID, f)
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}
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} else if err := os.Remove(of.filepath); err == nil || os.IsNotExist(err) {
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p.model.updateLocal(p.repoCfg.ID, f)
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}
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} else {
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@ -540,8 +559,8 @@ func (p *puller) handleEmptyBlock(b bqBlock) {
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delete(p.openFiles, f.Name)
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return
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}
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defTempNamer.Show(of.temp)
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if Rename(of.temp, of.filepath) == nil {
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osutil.ShowFile(of.temp)
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if osutil.Rename(of.temp, of.filepath) == nil {
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p.model.updateLocal(p.repoCfg.ID, f)
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}
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}
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@ -614,11 +633,23 @@ func (p *puller) closeFile(f scanner.File) {
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l.Debugf("pull: error: %q / %q: %v", p.repoCfg.ID, f.Name, err)
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}
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}
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defTempNamer.Show(of.temp)
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osutil.ShowFile(of.temp)
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if p.versioner != nil {
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err := p.versioner.Archive(of.filepath)
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if err != nil {
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if debug {
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l.Debugf("pull: error: %q / %q: %v", p.repoCfg.ID, f.Name, err)
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}
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return
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}
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}
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if debug {
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l.Debugf("pull: rename %q / %q: %q", p.repoCfg.ID, f.Name, of.filepath)
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}
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if err := Rename(of.temp, of.filepath); err == nil {
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if err := osutil.Rename(of.temp, of.filepath); err == nil {
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p.model.updateLocal(p.repoCfg.ID, f)
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} else {
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l.Debugf("pull: error: %q / %q: %v", p.repoCfg.ID, f.Name, err)
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@ -23,11 +23,3 @@ func (t tempNamer) TempName(name string) string {
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tname := fmt.Sprintf("%s.%s", t.prefix, filepath.Base(name))
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return filepath.Join(tdir, tname)
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}
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func (t tempNamer) Hide(path string) error {
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return nil
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}
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func (t tempNamer) Show(path string) error {
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return nil
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}
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@ -6,7 +6,6 @@ import (
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"fmt"
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"path/filepath"
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"strings"
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"syscall"
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)
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type tempNamer struct {
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@ -24,33 +23,3 @@ func (t tempNamer) TempName(name string) string {
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tname := fmt.Sprintf("%s.%s.tmp", t.prefix, filepath.Base(name))
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return filepath.Join(tdir, tname)
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}
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func (t tempNamer) Hide(path string) error {
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p, err := syscall.UTF16PtrFromString(path)
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if err != nil {
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return err
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}
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attrs, err := syscall.GetFileAttributes(p)
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if err != nil {
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return err
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}
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attrs |= syscall.FILE_ATTRIBUTE_HIDDEN
|
||||
return syscall.SetFileAttributes(p, attrs)
|
||||
}
|
||||
|
||||
func (t tempNamer) Show(path string) error {
|
||||
p, err := syscall.UTF16PtrFromString(path)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
attrs, err := syscall.GetFileAttributes(p)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
attrs &^= syscall.FILE_ATTRIBUTE_HIDDEN
|
||||
return syscall.SetFileAttributes(p, attrs)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -2,26 +2,12 @@ package model
|
|||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"runtime"
|
||||
|
||||
"github.com/calmh/syncthing/protocol"
|
||||
"github.com/calmh/syncthing/scanner"
|
||||
)
|
||||
|
||||
func Rename(from, to string) error {
|
||||
if runtime.GOOS == "windows" {
|
||||
os.Chmod(to, 0666) // Make sure the file is user writeable
|
||||
err := os.Remove(to)
|
||||
if err != nil && !os.IsNotExist(err) {
|
||||
l.Warnln(err)
|
||||
}
|
||||
}
|
||||
defer os.Remove(from) // Don't leave a dangling temp file in case of rename error
|
||||
return os.Rename(from, to)
|
||||
}
|
||||
|
||||
func fileFromFileInfo(f protocol.FileInfo) scanner.File {
|
||||
var blocks = make([]scanner.Block, len(f.Blocks))
|
||||
var offset int64
|
||||
|
|
|
|||
|
|
@ -0,0 +1,11 @@
|
|||
// +build !windows
|
||||
|
||||
package osutil
|
||||
|
||||
func HideFile(path string) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func ShowFile(path string) error {
|
||||
return nil
|
||||
}
|
||||
|
|
@ -0,0 +1,35 @@
|
|||
// +build windows
|
||||
|
||||
package osutil
|
||||
|
||||
import "syscall"
|
||||
|
||||
func HideFile(path string) error {
|
||||
p, err := syscall.UTF16PtrFromString(path)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
attrs, err := syscall.GetFileAttributes(p)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
attrs |= syscall.FILE_ATTRIBUTE_HIDDEN
|
||||
return syscall.SetFileAttributes(p, attrs)
|
||||
}
|
||||
|
||||
func ShowFile(path string) error {
|
||||
p, err := syscall.UTF16PtrFromString(path)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
attrs, err := syscall.GetFileAttributes(p)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
attrs &^= syscall.FILE_ATTRIBUTE_HIDDEN
|
||||
return syscall.SetFileAttributes(p, attrs)
|
||||
}
|
||||
|
|
@ -0,0 +1,18 @@
|
|||
package osutil
|
||||
|
||||
import (
|
||||
"os"
|
||||
"runtime"
|
||||
)
|
||||
|
||||
func Rename(from, to string) error {
|
||||
if runtime.GOOS == "windows" {
|
||||
os.Chmod(to, 0666) // Make sure the file is user writeable
|
||||
err := os.Remove(to)
|
||||
if err != nil && !os.IsNotExist(err) {
|
||||
return err
|
||||
}
|
||||
}
|
||||
defer os.Remove(from) // Don't leave a dangling temp file in case of rename error
|
||||
return os.Rename(from, to)
|
||||
}
|
||||
|
|
@ -144,15 +144,7 @@ func (w *Walker) walkAndHashFiles(res *[]File, ign map[string][]string) filepath
|
|||
return nil
|
||||
}
|
||||
|
||||
if _, sn := filepath.Split(rn); sn == w.IgnoreFile {
|
||||
// An ignore-file; these are ignored themselves
|
||||
if debug {
|
||||
l.Debugln("ignorefile:", rn)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
if w.ignoreFile(ign, rn) {
|
||||
if sn := filepath.Base(rn); sn == w.IgnoreFile || sn == ".stversions" || w.ignoreFile(ign, rn) {
|
||||
// An ignored file
|
||||
if debug {
|
||||
l.Debugln("ignored:", rn)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,13 @@
|
|||
package versioner
|
||||
|
||||
import (
|
||||
"os"
|
||||
"strings"
|
||||
|
||||
"github.com/calmh/syncthing/logger"
|
||||
)
|
||||
|
||||
var (
|
||||
debug = strings.Contains(os.Getenv("STTRACE"), "versioner") || os.Getenv("STTRACE") == "all"
|
||||
l = logger.DefaultLogger
|
||||
)
|
||||
|
|
@ -0,0 +1,84 @@
|
|||
package versioner
|
||||
|
||||
import (
|
||||
"os"
|
||||
"path/filepath"
|
||||
"sort"
|
||||
"strconv"
|
||||
"time"
|
||||
|
||||
"github.com/calmh/syncthing/osutil"
|
||||
)
|
||||
|
||||
func init() {
|
||||
// Register the constructor for this type of versioner with the name "simple"
|
||||
Factories["simple"] = NewSimple
|
||||
}
|
||||
|
||||
// The type holds our configuration
|
||||
type Simple struct {
|
||||
keep int
|
||||
}
|
||||
|
||||
// The constructor function takes a map of parameters and creates the type.
|
||||
func NewSimple(params map[string]string) Versioner {
|
||||
keep, err := strconv.Atoi(params["keep"])
|
||||
if err != nil {
|
||||
keep = 5 // A reasonable default
|
||||
}
|
||||
|
||||
s := Simple{
|
||||
keep: keep,
|
||||
}
|
||||
|
||||
if debug {
|
||||
l.Debugf("instantiated %#v", s)
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
// Move away the named file to a version archive. If this function returns
|
||||
// nil, the named file does not exist any more (has been archived).
|
||||
func (v Simple) Archive(path string) error {
|
||||
_, err := os.Stat(path)
|
||||
if err != nil && os.IsNotExist(err) {
|
||||
return nil
|
||||
}
|
||||
|
||||
if debug {
|
||||
l.Debugln("archiving", path)
|
||||
}
|
||||
|
||||
file := filepath.Base(path)
|
||||
dir := filepath.Join(filepath.Dir(path), ".stversions")
|
||||
err = os.MkdirAll(dir, 0755)
|
||||
if err != nil && !os.IsExist(err) {
|
||||
return err
|
||||
} else {
|
||||
osutil.HideFile(dir)
|
||||
}
|
||||
|
||||
ver := file + "~" + time.Now().Format("20060102-150405")
|
||||
err = osutil.Rename(path, filepath.Join(dir, ver))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
versions, err := filepath.Glob(filepath.Join(dir, file+"~*"))
|
||||
if err != nil {
|
||||
l.Warnln(err)
|
||||
return nil
|
||||
}
|
||||
|
||||
if len(versions) > v.keep {
|
||||
sort.Strings(versions)
|
||||
for _, toRemove := range versions[:len(versions)-v.keep] {
|
||||
err = os.Remove(toRemove)
|
||||
if err != nil {
|
||||
l.Warnln(err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
package versioner
|
||||
|
||||
type Versioner interface {
|
||||
Archive(path string) error
|
||||
}
|
||||
|
||||
var Factories = map[string]func(map[string]string) Versioner{}
|
||||
Loading…
Reference in New Issue