Grunt: Removes grunt dependency and replaces some of its usage (#29461)

* Grunt: Removes grunt dependency and replaces some of it usage with alternatives

* Removed precommit toolkit task

* Fixed toolkit import

* Some cleanup of unused / not working stuff in build.go

* Removed sass errors

scripts/grunt/build_task.js

@@ -1,6 +0,0 @@
-module.exports = function(grunt) {
-  'use strict';
-
-  // Concat and Minify the src directory into dist
-  grunt.registerTask('build', ['clean:release', 'clean:build', 'exec:webpack']);
-};

scripts/grunt/default_task.js

@@ -1,56 +0,0 @@
-// Lint and build CSS
-module.exports = function(grunt) {
-  'use strict';
-
-  // prettier-ignore
-  grunt.registerTask('default', [
-    'clean:build',
-  ]);
-
-  // prettier-ignore
-  grunt.registerTask('test', [
-    'sasslint',
-    'eslint',
-    'typecheck',
-    'exec:jest',
-    'no-only-tests',
-    'no-focus-convey-tests'
-  ]);
-
-  // prettier-ignore
-  grunt.registerTask('eslint', [
-    'newer:exec:eslint'
-  ]);
-
-  // prettier-ignore
-  grunt.registerTask('typecheck', [
-    'newer:exec:typecheckPackages',
-    'newer:exec:typecheckRoot'
-  ]);
-
-  grunt.registerTask('no-only-tests', function() {
-    var files = grunt.file.expand(
-      'public/**/*@(_specs|.test).@(ts|js|tsx|jsx)',
-      'packages/grafana-data/**/*@(_specs|.test).@(ts|js|tsx|jsx)',
-      'packages/**/*@(_specs|.test).@(ts|js|tsx|jsx)'
-    );
-    grepFiles(files, '.only(', 'found only statement in test: ');
-  });
-
-  grunt.registerTask('no-focus-convey-tests', function() {
-    var files = grunt.file.expand('pkg/**/*_test.go');
-    grepFiles(files, 'FocusConvey(', 'found FocusConvey statement in test: ');
-  });
-
-  function grepFiles(files, pattern, errorMessage) {
-    files.forEach(function(spec) {
-      var rows = grunt.file.read(spec).split('\n');
-      rows.forEach(function(row) {
-        if (row.indexOf(pattern) > 0) {
-          grunt.log.errorlns(row);
-          grunt.fail.warn(errorMessage + spec);
-        }
-      });
-    });
-  }
-};

scripts/grunt/options/clean.js

@@ -1,10 +0,0 @@
-module.exports = function(config) {
-  'use strict';
-
-  return {
-    release: ['<%= destDir %>', '<%= tempDir %>', '<%= genDir %>'],
-    build: ['<%= srcDir %>/build'],
-    temp: ['<%= tempDir %>'],
-    packaging: [],
-  };
-};

scripts/grunt/options/compress.js

@@ -1,32 +0,0 @@
-module.exports = function(config) {
-  'use strict';
-
-  var task = {
-    release: {
-      options: {
-        archive:
-          '<%= destDir %>/<%= pkg.name %><%= enterprise ? "-enterprise" : ""  %>-<%= pkg.version %>.<%= platform %>-<%= arch %><%= libc ? "-" + libc : "" %>.tar.gz',
-      },
-      files: [
-        {
-          expand: true,
-          cwd: '<%= tempDir %>',
-          src: ['**/*'],
-          dest: '<%= pkg.name %>-<%= pkg.version %>/',
-        },
-        {
-          expand: true,
-          src: ['LICENSE', 'README.md', 'NOTICE.md'],
-          dest: '<%= pkg.name %>-<%= pkg.version %>/',
-        },
-      ],
-    },
-  };
-
-  if (config.platform === 'windows') {
-    task.release.options.archive =
-      '<%= destDir %>/<%= pkg.name %><%= enterprise ? "-enterprise" : ""  %>-<%= pkg.version %>.<%= platform %>-<%= arch %>.zip';
-  }
-
-  return task;
-};

scripts/grunt/options/exec.js

@@ -1,16 +0,0 @@
-module.exports = function(config, grunt) {
-  'use strict';
-
-  return {
-    eslint: {
-      command: 'yarn lint',
-    },
-    typecheckPackages: {
-      command: 'yarn packages:typecheck',
-    },
-    typecheckRoot: {
-      command: 'yarn typecheck',
-    },
-    webpack: 'node ./node_modules/webpack/bin/webpack.js --config scripts/webpack/webpack.prod.js',
-  };
-};

scripts/grunt/options/sasslint.js

@@ -1,9 +0,0 @@
-module.exports = function(config) {
-  'use strict';
-  return {
-    options: {
-      configFile: 'public/sass/.sass-lint.yml',
-    },
-    src: ['public/sass/**/*.scss', 'packages/**/*.scss', '!**/node_modules/**/*.scss'],
-  };
-};

scripts/grunt/options/webpack.js

@@ -1,13 +0,0 @@
-const dev = require('../../webpack/webpack.dev.js');
-const prod = require('../../webpack/webpack.prod.js');
-
-module.exports = function() {
-  'use strict';
-  return {
-    options: {
-      stats: false,
-    },
-    dev: dev,
-    prod: prod,
-  };
-};

scripts/grunt/release_task.js

@@ -1,40 +0,0 @@
-var path = require('path');
-
-module.exports = function(grunt) {
-  'use strict';
-
-  // build then zip
-  grunt.registerTask('release', ['build', 'build-post-process']);
-
-  // package into archives
-  grunt.registerTask('package', ['clean:temp', 'build-post-process']);
-
-  grunt.registerTask('build-post-process', function() {
-    grunt.config('copy.public_to_temp', {
-      expand: true,
-      cwd: '<%= srcDir %>',
-      src: '**/*',
-      dest: '<%= tempDir %>/public/',
-    });
-    grunt.config('copy.backend_bin', {
-      cwd: 'bin/<%= platform %>-<%= arch %><%= libc ? "-" + libc : "" %>',
-      expand: true,
-      src: ['*'],
-      options: { mode: true },
-      dest: '<%= tempDir %>/bin/',
-    });
-    grunt.config('copy.backend_files', {
-      expand: true,
-      src: ['conf/**', 'tools/**', 'scripts/*'],
-      options: { mode: true },
-      dest: '<%= tempDir %>',
-    });
-
-    grunt.task.run('copy:public_to_temp');
-    grunt.task.run('copy:backend_bin');
-    grunt.task.run('copy:backend_files');
-    grunt.task.run('clean:packaging');
-
-    grunt.file.write(path.join(grunt.config('tempDir'), 'VERSION'), grunt.config('pkg.version'));
-  });
-};

scripts/grunt/style_guide_task.js

@@ -1,46 +0,0 @@
-module.exports = function(grunt) {
-  'use strict';
-
-  function escapeRegExp(str) {
-    return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&');
-  }
-
-  function extractColour(line) {
-    var regex = /\s*:\s*(#[a-fA-F0-9]{3,6})\s*(!default|!default;)?/;
-    var matches = line.match(regex);
-    return matches ? matches[1] : matches;
-  }
-
-  function extractVariable(line) {
-    var matches = line.match(/(\$[0-9a-zA-Z_-]+)\s*(!default|!default;)?/);
-    return matches ? matches[1] : matches;
-  }
-
-  function readVars(file, obj) {
-    var content = grunt.file.read(file);
-    var lines = content.split('\n');
-
-    lines.forEach(function(line) {
-      var variable = extractVariable(line);
-      if (variable) {
-        var color = extractColour(line, variable);
-        if (color) {
-          obj[variable] = color;
-        }
-      }
-    });
-  }
-
-  grunt.registerTask('styleguide', function() {
-    var data = {
-      dark: {},
-      light: {},
-    };
-
-    readVars('public/sass/_variables.dark.scss', data.dark);
-    readVars('public/sass/_variables.light.scss', data.light);
-
-    var styleGuideJson = grunt.config().srcDir + '/build/styleguide.json';
-    grunt.file.write(styleGuideJson, JSON.stringify(data, null, 4));
-  });
-};