CHE-11443 implement the containers plugin

Signed-off-by: Oleksii Orel <oorel@redhat.com>

extensions/eclipse-che-theia-plugin/yarn.lock

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+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+"@eclipse-che/api@^6.16.1":
+  version "6.16.1"
+  resolved "https://registry.yarnpkg.com/@eclipse-che/api/-/api-6.16.1.tgz#5b5e70285cf27d525df3752c938388e36f7925d6"

plugins/containers-plugin/.gitignore

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+lib/
+node_modules/
+*.theia

plugins/containers-plugin/README.md

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+# containers-plugin
+
+Containers-tree plugin for Theia.
+
+ This plugin provides:
+
+     - List of containers with their status, where each container provides:
+
+        - List of servers (resource locator) if there is any;
+
+        - Ability to open a terminal within a selected container;

plugins/containers-plugin/package.json

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+{
+  "name": "containers-plugin",
+  "publisher": "theia",
+  "keywords": [
+    "theia-plugin"
+  ],
+  "version": "0.0.1",
+  "license": "EPL-2.0",
+  "files": [
+    "src"
+  ],
+  "contributes": {
+    "viewsContainers": {
+      "right": [
+        {
+          "id": "containers",
+          "title": "Containers"
+        }
+      ]
+    },
+    "views": {
+      "containers": [
+        {
+          "id": "containers",
+          "name": "Workspace"
+        }
+      ]
+    }
+  },
+  "devDependencies": {
+    "@theia/plugin": "next",
+    "@theia/plugin-packager": "latest",
+    "@eclipse-che/plugin": "latest",
+    "rimraf": "2.6.2",
+    "typescript-formatter": "7.2.2",
+    "typescript": "2.9.2"
+  },
+  "dependencies": {
+  },
+  "scripts": {
+    "prepare": "yarn run clean && yarn run build",
+    "clean": "rimraf lib",
+    "format-code": "tsfmt -r",
+    "watch": "tsc -watch",
+    "compile": "tsc",
+    "build": "yarn run format-code && yarn run compile && theia:plugin pack"
+  },
+  "engines": {
+    "theiaPlugin": "next"
+  },
+  "theiaPlugin": {
+    "backend": "lib/containers-plugin.js"
+  }
+}

plugins/containers-plugin/src/containers-plugin.ts

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+/*********************************************************************
+ * Copyright (c) 2018 Red Hat, Inc.
+ *
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ **********************************************************************/
+
+import { ContainersTreeDataProvider } from './containers-tree-data-provider';
+import * as theia from '@theia/plugin';
+
+export function start(context: theia.PluginContext) {
+    const treeDataProvider = new ContainersTreeDataProvider();
+    const treeDataDisposableFn = theia.Disposable.create(() => {
+        treeDataProvider.dispose();
+    });
+    context.subscriptions.push(treeDataDisposableFn);
+
+    theia.window.createTreeView('containers', { treeDataProvider });
+}
+
+export function stop() {
+}

plugins/containers-plugin/src/containers-service.ts

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+/*********************************************************************
+ * Copyright (c) 2018 Red Hat, Inc.
+ *
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ **********************************************************************/
+
+import * as che from '@eclipse-che/plugin';
+
+export interface IWorkspaceMachine {
+    machineName: string;
+    servers?: {
+        [serverRef: string]: {
+            url?: string;
+            port?: string;
+        }
+    };
+    status?: 'STARTING' | 'RUNNING' | 'STOPPED' | 'FAILED';
+}
+
+export class ContainersService {
+
+    private runtimeMachines: Array<IWorkspaceMachine> = [];
+
+    constructor() {
+    }
+
+    async updateMachines(): Promise<void> {
+        const workspace = await che.workspace.getCurrentWorkspace();
+        if (!workspace) {
+            return Promise.reject('Failed to get workspace configuration');
+        }
+
+        const workspaceMachines = workspace!.runtime
+            && workspace!.runtime!.machines
+            || workspace!.config!.environments![workspace.config!.defaultEnv!].machines
+            || {};
+
+        this.runtimeMachines.length = 0;
+
+        Object.keys(workspaceMachines).forEach((machineName: string) => {
+            const machine = <IWorkspaceMachine>workspaceMachines[machineName];
+            machine.machineName = machineName;
+            this.runtimeMachines.push(machine);
+        });
+    }
+
+    get machines(): Array<IWorkspaceMachine> {
+        return this.runtimeMachines;
+    }
+}

plugins/containers-plugin/src/containers-tree-data-provider.ts

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+/*********************************************************************
+ * Copyright (c) 2018 Red Hat, Inc.
+ *
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ **********************************************************************/
+
+import * as theia from '@theia/plugin';
+import { ContainersService, IWorkspaceMachine } from './containers-service';
+
+interface TreeNodeItem {
+    id: string;
+    name: string;
+    tooltip: string;
+    iconPath?: string;
+    parentId?: string;
+    commandId?: string
+}
+
+export class ContainersTreeDataProvider implements theia.TreeDataProvider<TreeNodeItem> {
+    private ids: string[];
+    private treeNodeItems: TreeNodeItem[];
+    private onDidChangeTreeDataEmitter: theia.EventEmitter<undefined>;
+
+    readonly onDidChangeTreeData: theia.Event<undefined>;
+
+    constructor() {
+        this.ids = [];
+        this.treeNodeItems = [];
+
+        this.onDidChangeTreeDataEmitter = new theia.EventEmitter<undefined>();
+        this.onDidChangeTreeData = this.onDidChangeTreeDataEmitter.event;
+
+        const containersService = new ContainersService();
+
+        this.updateContainersTreeData(containersService).then(() => {
+            this.onDidChangeTreeDataEmitter.fire();
+        });
+    }
+
+    private async updateContainersTreeData(containersService: ContainersService): Promise<void> {
+        this.ids.length = 0;
+        this.treeNodeItems.length = 0;
+        await containersService.updateMachines();
+        containersService.machines.forEach((machine: IWorkspaceMachine) => {
+            const treeItem: TreeNodeItem = {
+                id: this.getRandId(),
+                name: machine.machineName,
+                tooltip: `workspace container status ${machine.status}`
+            };
+            switch (machine.status) {
+                case 'STARTING':
+                    treeItem.iconPath = 'fa-circle medium-yellow';
+                    break;
+                case 'RUNNING':
+                    treeItem.iconPath = 'fa-circle medium-green';
+                    break;
+                case 'FAILED':
+                    treeItem.iconPath = 'fa-circle medium-red';
+                    break;
+                default:
+                    treeItem.iconPath = 'fa-circle-o';
+            }
+            this.treeNodeItems.push(treeItem);
+            this.treeNodeItems.push({
+                id: this.getRandId(),
+                parentId: treeItem.id,
+                name: 'terminal',
+                iconPath: 'fa-terminal',
+                tooltip: `new terminal for ${machine.machineName}`,
+                commandId: `terminal-for-${machine.machineName}-container:new`
+            });
+            const servers = machine.servers;
+            if (!servers) {
+                return;
+            }
+            Object.keys(servers).forEach((serverName: string) => {
+                const server = servers[serverName];
+                if (!server || !server.url) {
+                    return;
+                }
+                this.treeNodeItems.push({
+                    id: this.getRandId(),
+                    parentId: treeItem.id,
+                    name: ` [${serverName}](${server.url})`,
+                    tooltip: server.url
+                });
+            });
+        });
+    }
+
+    private getRandId(): string {
+        let uniqueId = '';
+        for (let counter = 0; counter < 1000; counter++) {
+            uniqueId = `${('0000' + (Math.random() * Math.pow(36, 4) << 0).toString(36)).slice(-4)}`;
+            if (this.ids.findIndex(id => id === uniqueId) === -1) {
+                break;
+            }
+        }
+        this.ids.push(uniqueId);
+        return uniqueId;
+    }
+
+    dispose(): void {
+        this.onDidChangeTreeDataEmitter.dispose();
+    }
+
+    getTreeItem(element: TreeNodeItem): theia.TreeItem {
+        const treeItem: theia.TreeItem = {
+            label: element.name,
+            tooltip: element.tooltip
+        };
+        if (element.parentId === undefined) {
+            treeItem.collapsibleState = theia.TreeItemCollapsibleState.Expanded;
+        }
+        if (element.iconPath) {
+            treeItem.iconPath = element.iconPath
+        }
+        if (element.commandId) {
+            treeItem.command = { id: element.commandId }
+        }
+        return treeItem;
+    }
+
+    getChildren(element?: TreeNodeItem): TreeNodeItem[] {
+        if (element) {
+            return this.treeNodeItems.filter(item => item.parentId === element.id);
+        } else {
+            return this.treeNodeItems.filter(item => item.parentId === undefined);
+        }
+    }
+}

plugins/containers-plugin/tsconfig.json

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+{
+    "compilerOptions": {
+        "strict": true,
+        "skipLibCheck": true,
+        "experimentalDecorators": true,
+        "noUnusedLocals": true,
+        "emitDecoratorMetadata": true,
+        "downlevelIteration": true,
+        "module": "commonjs",
+        "moduleResolution": "node",
+        "target": "es5",
+        "lib": [
+            "es6",
+            "webworker"
+        ],
+        "sourceMap": true,
+        "rootDir": "src",
+        "outDir": "lib"
+    },
+    "include": [
+        "src"
+    ]
+}

plugins/containers-plugin/tsfmt.json

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+{
+    "baseIndentSize": 0,
+    "newLineCharacter": "\n",
+    "indentSize": 4,
+    "tabSize": 4,
+    "indentStyle": 4,
+    "convertTabsToSpaces": true,
+    "insertSpaceAfterCommaDelimiter": true,
+    "insertSpaceAfterSemicolonInForStatements": true,
+    "insertSpaceBeforeAndAfterBinaryOperators": true,
+    "insertSpaceAfterKeywordsInControlFlowStatements": true,
+    "insertSpaceAfterFunctionKeywordForAnonymousFunctions": false,
+    "insertSpaceAfterOpeningAndBeforeClosingNonemptyParenthesis": false,
+    "insertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets": false,
+    "insertSpaceAfterOpeningAndBeforeClosingTemplateStringBraces": false,
+    "placeOpenBraceOnNewLineForFunctions": false,
+    "placeOpenBraceOnNewLineForControlBlocks": false
+}
+