mirror of https://github.com/webpack/webpack.git
				
				
				
			
		
			
				
	
	
		
			130 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			130 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
| /*
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| 	MIT License http://www.opensource.org/licenses/mit-license.php
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| 	Author Tobias Koppers @sokra
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| */
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| function ProgressPlugin(handler) {
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| 	this.handler = handler;
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| }
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| module.exports = ProgressPlugin;
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| 
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| ProgressPlugin.prototype.apply = function(compiler) {
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| 	var handler = this.handler || defaultHandler;
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| 	if(compiler.compilers) {
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| 		var states = new Array(compiler.compilers.length);
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| 		compiler.compilers.forEach(function(compiler, idx) {
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| 			compiler.apply(new ProgressPlugin(function(p, msg) {
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| 				states[idx] = [p, msg];
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| 				handler(states.map(function(state) {
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| 					return state && state[0] || 0;
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| 				}).reduce(function(a, b) {
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| 					return a + b;
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| 				}) / states.length, states.map(function(state) {
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| 					return state && state[1];
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| 				}).filter(Boolean).join(" | "));
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| 			}));
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| 		});
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| 	} else {
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| 		var lastModulesCount = 0;
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| 		var moduleCount = 1;
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| 		var doneModules = 0;
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| 
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| 		function update() {
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| 			handler(0.1 + (doneModules / Math.max(lastModulesCount, moduleCount)) * 0.6, doneModules + "/" + moduleCount + " build modules");
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| 		}
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| 		compiler.plugin("compilation", function(compilation) {
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| 			if(compilation.compiler.isChild()) return;
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| 			lastModulesCount = moduleCount;
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| 			moduleCount = 0;
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| 			doneModules = 0;
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| 			handler(0, "compile");
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| 			compilation.plugin("build-module", function() {
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| 				moduleCount++;
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| 				update();
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| 			});
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| 			compilation.plugin("succeed-module", function() {
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| 				doneModules++;
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| 				update();
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| 			});
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| 			compilation.plugin("seal", function() {
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| 				handler(0.71, "seal");
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| 			});
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| 			compilation.plugin("optimize", function() {
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| 				handler(0.73, "optimize");
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| 			});
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| 			compilation.plugin("before-hash", function() {
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| 				handler(0.75, "hashing");
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| 			});
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| 			compilation.plugin("before-chunk-assets", function() {
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| 				handler(0.76, "create chunk assets");
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| 			});
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| 			compilation.plugin("additional-chunk-assets", function() {
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| 				handler(0.78, "additional chunk assets");
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| 			});
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| 			compilation.plugin("optimize-chunk-assets", function(chunks, callback) {
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| 				handler(0.8, "optimize chunk assets");
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| 				callback();
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| 			});
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| 			compilation.plugin("optimize-assets", function(assets, callback) {
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| 				handler(0.9, "optimize assets");
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| 				callback();
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| 			});
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| 		});
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| 		compiler.plugin("emit", function(compilation, callback) {
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| 			handler(0.95, "emit");
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| 			callback();
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| 		});
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| 		compiler.plugin("done", function() {
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| 			handler(1, "");
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| 		});
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| 	}
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| 
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| 	var chars = 0,
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| 		lastState, lastStateTime;
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| 
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| 	function defaultHandler(percentage, msg) {
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| 		var state = msg;
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| 
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| 		function goToLineStart(nextMessage) {
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| 			var str = "";
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| 			for(; chars > nextMessage.length; chars--) {
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| 				str += "\b \b";
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| 			}
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| 			chars = nextMessage.length;
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| 			for(var i = 0; i < chars; i++) {
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| 				str += "\b";
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| 			}
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| 			if(str) process.stderr.write(str);
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| 		}
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| 
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| 		if(percentage < 1) {
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| 			percentage = Math.floor(percentage * 100);
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| 			msg = percentage + "% " + msg;
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| 			if(percentage < 100) {
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| 				msg = " " + msg;
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| 			}
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| 			if(percentage < 10) {
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| 				msg = " " + msg;
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| 			}
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| 		}
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| 		if(compiler.options.profile) {
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| 			state = state.replace(/^\d+\/\d+\s+/, "");
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| 			if(percentage === 0) {
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| 				lastState = null;
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| 				lastStateTime = +new Date();
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| 			} else if(state !== lastState || percentage === 1) {
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| 				var now = +new Date();
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| 				if(lastState) {
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| 					var stateMsg = (now - lastStateTime) + "ms " + lastState;
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| 					goToLineStart(stateMsg);
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| 					process.stderr.write(stateMsg + "\n");
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| 					chars = 0;
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| 				}
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| 				lastState = state;
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| 				lastStateTime = now;
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| 			}
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| 		}
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| 		goToLineStart(msg);
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| 		process.stderr.write(msg);
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| 	}
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| };
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