early/ts/index.ts

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TypeScript
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/// <reference path="./typings/index.d.ts" />
let colors = require("colors");
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let readline = require("readline");
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let rl;
let initReadline = () => {
rl = readline.createInterface({
input: process.stdin,
output: process.stdout
});
};
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let moduleName:string;
let loaderLength:number;
let frameCounter:number = 0;
let makeFrame = ():string => {
let resultString:string = "["
+ "/".green.repeat(frameCounter)
+ " ".repeat(loaderLength - frameCounter)
+ "]"
+ " starting "
+ moduleName.cyan;
if(frameCounter == loaderLength){
frameCounter = 0;
} else {
frameCounter++;
}
return resultString;
};
let abort:boolean = true;
let logEarly = () => {
rl.write(null, {ctrl: true, name: 'u'});
rl.write(makeFrame());
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setTimeout(function(){
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if(!abort){
logEarly();
}
},200);
};
// exports
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export let start = function(moduleNameArg:string = "",loaderLengthArg:number = 10){
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abort = false;
moduleName = moduleNameArg;
loaderLength = loaderLengthArg;
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if (!process.env.CI){
initReadline();
logEarly();
} else {
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console.log("**** starting " + moduleName.cyan + " ****");
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};
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};
export let stop = function(){
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abort = true;
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if (!process.env.CI){
rl.write(null, {ctrl: true, name: 'u'});
rl.close();
}
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};