fetch-node-website/build/src/progress.js

Fetch releases on nodejs.org

import{finished}from"node:stream/promises";

import{MultiBar}from"cli-progress";
import colorsOption from"colors-option";
import figures from"figures";

const{green}=colorsOption();



export const addProgress=async({response,progress,path,signal})=>{
if(!shouldShowProgress(progress,signal)){
return
}

const bar=startBar(path);

response.on("downloadProgress",({percent})=>{
bar.update(percent)
});

try{
await finished(response,{writable:false,signal})
}catch{}

stopBar(bar)
};


const shouldShowProgress=(progress,signal)=>
progress&&multibar.terminal.isTTY()&&!signal?.aborted;


const startBar=(path)=>{
const bar=multibar.create();
const prefix=getPrefix(path);
bar.start(1,0,{prefix});
return bar
};

const MULTIBAR_OPTS={
format:`  ${green(figures.nodejs)}  {prefix}  {bar}`,
barCompleteChar:"\u2588",
barIncompleteChar:"\u2591",
stopOnComplete:true,
clearOnComplete:true,
hideCursor:true
};





const multibar=new MultiBar(MULTIBAR_OPTS);


const getPrefix=(path)=>{
const version=VERSION_TEXT_REGEXP.exec(path);

if(version!==null){
return`${VERSION_TEXT} ${version[1].padEnd(VERSION_PADDING)}`
}

if(INDEX_TEXT_REGEXP.test(path)){
return INDEX_TEXT
}

return DEFAULT_TEXT
};

const VERSION_TEXT_REGEXP=/^\/?v([\d.]+)\//u;
const INDEX_TEXT_REGEXP=/^\/?index.(json|tab)$/u;
const VERSION_PADDING=7;

const VERSION_TEXT="Node.js";
const INDEX_TEXT="List of Node.js versions";
const DEFAULT_TEXT="Node.js";


const stopBar=(bar)=>{
bar.stop();
multibar.remove(bar);


if(multibar.bars.length===0){
multibar.stop()
}
};