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- 'use strict';
- let dirtyFiles,
- ignoreList;
- module.exports = {
- /**
- * Check if a task (including its optional target) is in the queue of tasks to be executed by Grunt.
- *
- * @param grunt {Object} The Grunt object.
- * @param task {String} The task name. May optionally include the target (e.g. 'task:target').
- * @returns {Boolean} "true" if the task is in the queue.
- */
- checkTaskInQueue( grunt, task ) {
- const cliTasks = grunt.cli.tasks;
- // Check if the task has been called directly.
- const isDirectCall = ( cliTasks.indexOf( task ) > -1 );
- // Check if this is a "default" call and that the task is inside "default".
- const isDefaultTask = ( cliTasks.indexOf( 'default' ) > -1 ) || !cliTasks.length;
- // Hacking Grunt hard.
- const isTaskInDefault = isDefaultTask && ( grunt.task._tasks.default.info.indexOf( '"' + task + '"' ) > -1 );
- return isDirectCall || isTaskInDefault;
- },
- /**
- * Configures a multi-task and defines targets that are queued to be run by Grunt.
- *
- * @param grunt {Object} The Grunt object.
- * @param options {Object} A list of options for the method. See the jscs and jshint tasks for example.
- */
- setupMultitaskConfig( grunt, options ) {
- const task = options.task;
- const taskConfig = {};
- const config = taskConfig[ task ] = {
- options: options.defaultOptions
- };
- // "all" is the default target to be used if others are not to be run.
- const all = options.targets.all;
- let isAll = true;
- delete options.targets.all;
- Object.getOwnPropertyNames( options.targets ).forEach( function( target ) {
- if ( this.checkTaskInQueue( grunt, task + ':' + target ) ) {
- config[ target ] = options.targets[ target ]();
- isAll = false;
- }
- }, this );
- if ( isAll ) {
- config.all = all();
- }
- // Append .gitignore entries to the ignore list.
- if ( options.addGitIgnore ) {
- let ignoreProp = task + '.options.' + options.addGitIgnore;
- let ignores = grunt.config.get( ignoreProp ) || [];
- ignores = ignores.concat( this.getGitIgnore( grunt ) );
- grunt.config.set( ignoreProp, ignores );
- }
- // Merge over configurations set in gruntfile.js.
- grunt.config.merge( taskConfig );
- },
- /**
- * Gets the list of ignores from `.gitignore`.
- *
- * @param grunt {Object} The Grunt object.
- * @returns {String[]} The list of ignores.
- */
- getGitIgnore( grunt ) {
- if ( !ignoreList ) {
- ignoreList = grunt.file.read( '.gitignore' );
- ignoreList = ignoreList
- // Remove comment lines.
- .replace( /^#.*$/gm, '' )
- // Transform into array.
- .split( /\n+/ )
- // Remove empty entries.
- .filter( function( path ) {
- return !!path;
- } );
- }
- return ignoreList;
- },
- /**
- * Gets the list of files that are supposed to be included in the next Git commit.
- *
- * @returns {String[]} A list of file paths.
- */
- getGitDirtyFiles() {
- // Cache it, so it is executed only once when running multiple tasks.
- if ( !dirtyFiles ) {
- dirtyFiles = this
- // Compare the state of index with HEAD.
- .shExec( 'git diff-index --name-only HEAD' )
- // Remove trailing /n to avoid an empty entry.
- .replace( /\s*$/, '' )
- // Transform into array.
- .split( '\n' );
- // If nothing is returned, the array will one one empty string only.
- if ( dirtyFiles.length == 1 && !dirtyFiles[ 0 ] ) {
- dirtyFiles = [];
- }
- }
- return dirtyFiles;
- },
- /**
- * Executes a shell command.
- *
- * @param command {String} The command to be executed.
- * @returns {String} The command output.
- */
- shExec( command ) {
- const sh = require( 'shelljs' );
- sh.config.silent = true;
- const ret = sh.exec( command );
- if ( ret.code ) {
- throw new Error(
- 'Error while executing `' + command + '`:\n\n' +
- ret.output
- );
- }
- return ret.output;
- }
- };
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