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README.md 6.19 KB
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[weiank@126.com] 提交于 2018-04-04 09:43 . md edit

Grafana SDK Mocks for Plugins

This package facilitates writing Grafana plugins in TypeScript.

  • provides Typescript typings for the most common Grafana classes.
  • provides some simple fakes and util files to test plugins with Karma

Setup

With npm, Grunt, karma and mocha.js

This shows how to setup a project with Grunt as the build system, using npm to install the packages (yarn is very similar), karma for unit testing and mocha with expect.js for unit testing.

  1. npm install --save systemjs lodash moment (lodash and moment are optional)
  2. npm install --save-dev grunt grunt-contrib-clean grunt-contrib-copy grunt-contrib-watch grunt-typescript karma karma-expect karma-mocha karma-chrome-launcher karma-sinon karma-systemjs karma-phantomjs-launcher plugin-typescript q sinon
  3. Install this package: npm install --save-dev grafana/grafana-sdk-mocks
  4. Here is an example Gruntfile for building TypeScript. It expects the TypeScript files to be located in a src subdirectory.
module.exports = function(grunt) {
  require('load-grunt-tasks')(grunt);

  grunt.loadNpmTasks('grunt-contrib-clean');
  grunt.loadNpmTasks('grunt-typescript');
  grunt.loadNpmTasks('grunt-contrib-watch');

  grunt.initConfig({
    clean: ['dist'],

    copy: {
      dist_js: {
        expand: true,
        cwd: 'src',
        src: ['**/*.ts', '**/*.d.ts'],
        dest: 'dist'
      },
      dist_html: {
        expand: true,
        flatten: true,
        cwd: 'src/partials',
        src: ['*.html'],
        dest: 'dist/partials/'
      },
      dist_statics: {
        expand: true,
        flatten: true,
        src: ['src/plugin.json', 'LICENSE', 'README.md'],
        dest: 'dist/'
      }
    },

    typescript: {
      build: {
        src: ['dist/**/*.ts', '!**/*.d.ts'],
        dest: 'dist',
        options: {
          module: 'system',
          target: 'es5',
          rootDir: 'dist/',
          declaration: true,
          emitDecoratorMetadata: true,
          experimentalDecorators: true,
          sourceMap: true,
          noImplicitAny: false,
        }
      }
    },

    watch: {
      files: ['src/**/*.ts', 'src/**/*.html', 'src/plugin.json', 'README.md'],
      tasks: ['default'],
      options: {
        debounceDelay: 250,
      },
    }
  });

  grunt.registerTask('default', [
    'clean',
    'copy:dist_js',
    'typescript:build',
    'copy:dist_html',
    'copy:dist_statics'
  ]);
};
  1. Here is an example karma.conf.js file. It assumes that test files are located in the specs subdirectory. It includes config for lodash, momentjs and q (promises).
'use strict';
module.exports = function(config) {
    config.set({
      frameworks: ['systemjs', 'mocha', 'expect', 'sinon'],

      files: [
        'specs/*.ts',
        { pattern: 'src/**/*.ts', included: false },
        { pattern: 'node_modules/grafana-sdk-mocks/**/*.ts', included: false },
        { pattern: 'node_modules/grafana-sdk-mocks/**/*.js', included: false },
        { pattern: 'node_modules/typescript/lib/typescript.js', included: false },
        { pattern: 'node_modules/lodash/lodash.js', included: false },
        { pattern: 'node_modules/moment/moment.js', included: false },
        { pattern: 'node_modules/q/q.js', included: false },
      ],

      systemjs: {
      //   // SystemJS configuration specifically for tests, added after your config file.
      //   // Good for adding test libraries and mock modules
        config: {
          // Set path for third-party libraries as modules
          paths: {
            'systemjs': 'node_modules/systemjs/dist/system.js',
            'system-polyfills': 'node_modules/systemjs/dist/system-polyfills.js',
            'lodash': 'node_modules/lodash/lodash.js',
            'moment': 'node_modules/moment/moment.js',
            'q': 'node_modules/q/q.js',
            'typescript': 'node_modules/typescript/lib/typescript.js',
            'plugin-typescript': 'node_modules/plugin-typescript/lib/plugin.js',
            'app/': 'node_modules/grafana-sdk-mocks/app/',
          },

          map: {
              'plugin-typescript': 'node_modules/plugin-typescript/lib/',
              'typescript': 'node_modules/typescript/',
              'app/core/utils/kbn': 'node_modules/grafana-sdk-mocks/app/core/utils/kbn.js'
          },

          packages: {
            'plugin-typescript': {
                'main': 'plugin.js'
            },
            'typescript': {
                'main': 'lib/typescript.js',
                'meta': {
                    'lib/typescript.js': {
                        'exports': 'ts'
                    }
                }
            },
            'app': {
              'defaultExtension': 'ts',
              'meta': {
                '*.js': {
                  'loader': 'typescript'
                }
              }
            },
            'src': {
              'defaultExtension': 'ts',
            },
            'specs': {
              'defaultExtension': 'ts',
              'meta': {
                '*.js': {
                  'loader': 'typescript'
                }
              }
            },
          },

          transpiler: 'plugin-typescript',
        }
      },

      reporters: ['dots'],

      logLevel: config.LOG_INFO,

      browsers: ['PhantomJS']
    });
};

Typings

Use the following triple slash directive to use Grafana classes in your code. The directive will point the TypeScript compiler at the mocks package so that it can find the files it needs to build. Place the directive at the top of all your TypeScript files:

///<reference path="../node_modules/grafana-sdk-mocks/app/headers/common.d.ts" />

update

  • 1.0.1 add echarts and highcharts module

Commands to build and test

  • grunt to build. This will create the dist subdirectory, copy the TypeScript files there, transpile them to JavaScript as well as copying html files, the License file, the Readme and plugin.json to dist.
  • grunt watch runs grunt when a file is changed. Useful while developing.
  • karma start --single-run runs the unit tests in the specs subdirectory.
  • karma start is a test watcher for unit tests. It will rerun the tests when a file is changed.
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