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// ==UserScript==
// @name GitHub FileSize Viewer
// @namespace http://tampermonkey.net/
// @version 0.9.12
// @description Show the file size next to it on the website
// @author nmaxcom
// @match https://*.github.com/*
// @grant GM_xmlhttpRequest
// ==/UserScript==
(function(){
/****************
* Options:
****************/
const DEBUG_MODE = false; // in production mode should be false
const SHOW_BYTES = false; // false: always KB, i.e. '>1 KB', true: i.e. '180 B' when less than 1 KB
/****************/
var textColor = '#6a737d'; // Default github style
// var textColor = '#888'; // my dark github style
createStyles();
var origXHROpen = XMLHttpRequest.prototype.open;
XMLHttpRequest.prototype.open = function(){
this.addEventListener('loadend', function(){
if(DEBUG_MODE) console.log('%cStart: ' + document.title, 'color:white;background-color:#20A6E8;padding:3px');
tableCheckandGo();
});
origXHROpen.apply(this, arguments);
};
var vars = {}, response;
tableCheckandGo();
/**
* Order of business:
* - Detect table, if present, launch async API call and insert new blank cells
* - Detect necessary info to make the async API call
* - When promised is successful, change the blanks for the numbers
* done: detect page change since github does that youtube thing
*/
function tableCheckandGo(){
if(document.querySelector('table.files')){
if(setVars()){
var callPromise = callGitHub();
callPromise
.then(function(resp){
response = resp;
if(DEBUG_MODE) console.info('GitHub call went through');
if(DEBUG_MODE) console.info(resp.responseText);
insertBlankCells();
fillTheBlanks(JSON.parse(resp.responseText));
recheckAndFix();
})
.catch(function(fail){
if(DEBUG_MODE) console.error(fail);
});
} else {
if(DEBUG_MODE) console.info('setVars() failed. Vars: ', vars);
}
} else {
if(DEBUG_MODE) console.info('No data table detected, nothing to do');
}
}
/**
* API call
*/
function callGitHub(){
return new Promise(function(resolve, reject){
// I'm forced to use GM_xmlhttpRequest to avoid Same Origin Policy issues
GM_xmlhttpRequest({
method : "GET",
url : getAPIurl(),
onload : function(res){
resolve(res);
},
onerror: function(res){
reject(res);
}
});
});
}
function getAPIurl(){
// .../repos/:owner/:repo/contents/:path?ref=branch
vars.dir = vars.dir || '';
return "https://api.github.com/repos/" +
vars.owner + "/" +
vars.repo +
"/contents/" +
vars.dir + "?ref=" + vars.branch;
}
/**
* - Directories get new cellmate too
*
*/
function insertBlankCells(){
var filenameCells = document.querySelectorAll('tr[class~="js-navigation-item"] > td.content');
for(var i = 0, len = filenameCells.length; i < len; i++){
var newtd = document.createElement('td');
newtd.className = 'filesize';
filenameCells[i].parentNode.insertBefore(newtd, filenameCells[i].nextSibling);
}
if(DEBUG_MODE) console.info(`Inserted ${i} cells`);
}
/**
* If we get the data, we insert it carefully so each filename gets matched
* with the correct filesize.
*/
function fillTheBlanks(JSONelements){
if(!document.querySelectorAll('td.filesize').length){
if(DEBUG_MODE) debugger;
}
var nametds = document.querySelectorAll('tr[class~="js-navigation-item"] > td.content a');
var i, len;
toploop:
for(i = 0, len = JSONelements.length; i < len; i++){
for(var cellnum in nametds){
if(nametds.hasOwnProperty(cellnum) && JSONelements[i].name === nametds[cellnum].innerHTML){
if(JSONelements[i].type === 'file'){
var sizeNumber = (JSONelements[i].size / 1024).toFixed(0);
if(SHOW_BYTES){
sizeNumber = sizeNumber < 1 ? JSONelements[i].size + ' B' : sizeNumber + ' KB';
} else {
sizeNumber = sizeNumber < 1 ? '> 1 KB' : sizeNumber + ' KB';
}
nametds[cellnum].parentNode.parentNode.nextSibling.innerHTML = sizeNumber;
}
continue toploop;
}
}
}
if(DEBUG_MODE) console.info(`Processed ${i} of ${len} elements`);
// if(DEBUG_MODE) console.info('Dumping json y nodes:');
// if(DEBUG_MODE) console.log(JSONelements.forEach(function(e,i){if(DEBUG_MODE) console.log(JSONelements[i].name)}));
// if(DEBUG_MODE) console.log(nametds.forEach(function(e,i){if(DEBUG_MODE) console.log(nametds[i].innerHTML)}));
}
function createStyles(){
var css = 'td.filesize { color: ' + textColor + ';' +
'text-align: right;' +
'padding-right: 50px !important; }' +
'table.files td.message { max-width: 250px !important;',
head = document.head || document.getElementsByTagName('head')[0],
style = document.createElement('style');
style.type = 'text/css';
if(style.styleSheet){
style.styleSheet.cssText = css;
} else {
style.appendChild(document.createTextNode(css));
}
head.appendChild(style);
}
/**
* Hay que satisfacer en la api el GET /repos/:owner/:repo/contents/:path?ref=branch
* Con este regex capturamos del título \w+(.*?)\sat\s(.*?)\s.*?(\w+)\/(\w+)
* 1) dir path, 2) branch, 3) owner, 4) repo
* Ese regex no funciona en el root
*/
function setVars(){
var title = document.title;
// Root folder:
var match3 = title.match(/.*?([a-zA-Z0-9._-]+)\/([a-zA-Z0-9._-]+):/);
// Non root folder, any branch:
//var match1 = title.match(/([a-zA-Z0-9._-]+)\/([a-zA-Z0-9._-]+)\sat\s([a-zA-Z0-9._-]+)\s·\s([a-zA-Z0-9._-]+)\/([a-zA-Z0-9._-]+)/);
// Root folder, we'll extract branch from scrape
var match2 = title.match(/.+?\/([a-zA-Z0-9._\/-]+).*?·\s([a-zA-Z0-9._-]+)\/([a-zA-Z0-9._\/-]+)/);
if(match3){
vars = {owner: match3[1], repo: match3[2]};
vars.branch = document.querySelector('.branch-select-menu button span').innerHTML;
}/*else if(match1) {
vars = {repo: match1[1], dir: match1[2], branch: match1[3], owner: match1[4]};
} */ else if(match2){
vars = {dir: match2[1], owner: match2[2], repo: match2[3]};
vars.branch = document.querySelector('.branch-select-menu button span').innerHTML;
} else if(DEBUG_MODE) console.log(getAPIurl());
return 1;
}
/**
* Sometimes, even though data has been correctly recieved, the DOM doesn't play well
* for whatever reason. This function will quickly check if the data is indeed
* there and if it's not will repaint the data again with the original functions.
* TODO: finish this part
*/
function recheckAndFix(){
// Count td.filesize and compare to total rows
let filesizes = document.querySelectorAll('td.filesize').length;
let ages = document.querySelectorAll('td.age').length;
if(filesizes === ages){
if(DEBUG_MODE) console.info(`Good empty check: ${filesizes} of ${ages}`);
} else {
if(DEBUG_MODE) console.info(`Bad empty check: ${filesizes} of ${ages}. Repainting`);
}
// Count non-empty td.filesize and compare to number of files from response
if(DEBUG_MODE) console.info(`Say something...`);
}
})();