Hide certain files in a GitHub diff based on file path.

hide_github_diffs.js

function hideNodes(matcher) {
  var fileNodes = document.querySelectorAll("#files .file");
  var indeciesToHide = [];
  var tester = (typeof matcher === "string") ? new RegExp(matcher) : matcher;
  var fileHeader;
  var filePath;
  
  for (var i=0; i < fileNodes.length; i++) {
    fileHeader = null;
    filePath = null;
    
    fileHeader = fileNodes[i].querySelector(".file-header");
    
    if (fileHeader) {
      filePath = fileHeader.getAttribute("data-path");
      
      if (fileHeader && tester.test(filePath)) {
        indeciesToHide.push(i);        
      }
    }
  }
  
  for (var j=0; j < indeciesToHide.length; j++) {
    fileNodes[j].setAttribute("style", "display: none;")
  }
}

// example usage
hideNodes(/^Pods\/.*/);