Add a tool to find common landings between channels

2017-01-17 13:23:46 +00:00 · 2017-01-17 13:23:46 +00:00 · 84a4643480
--- a/common_landings.html
+++ b/common_landings.html
@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>Find common landings between channels</title>
+</head>
+<body>
+<script src="common_landings.js" type="text/javascript"></script>
+<p>Insert one or more links like <code>https://hg.mozilla.org/releases/mozilla-beta/pushloghtml?fromchange=FIREFOX_51_0b13_RELEASE&tochange=FIREFOX_51_0b14_RELEASE</code></p>
+<input type="text" name="pushloglink1" id="pushloglink1" size="140" placeholder="First pushlog link...">
+<br>
+<input type="text" name="pushloglink2" id="pushloglink2" size="140" placeholder="Second pushlog link...">
+<br>
+<input type="text" name="pushloglink3" id="pushloglink3" size="140" placeholder="Third pushlog link...">
+<br><br>
+<button id="getCommonLandings">Find common landings</button>
+<br><br>
+<span id="results"></span>
+</body>
+</html>
--- a/common_landings.js
+++ b/common_landings.js
@ -0,0 +1,67 @@
+let onLoad = new Promise(function(resolve, reject) {
+  window.onload = resolve;
+});
+
+function getCommonLandings() {
+  let pushlog_links = [];
+
+  for (let i = 1; i < 4; i++) {
+    let pushlog_link = document.getElementById('pushloglink' + i).value;
+    if (pushlog_link) {
+      pushlog_links.push(pushlog_link);
+    }
+  }
+
+  return Promise.all(
+    pushlog_links
+    .map(link => 
+      fetch(link)
+      .then(response => response.text())
+      .then(html => {
+        let bugs = [];
+
+        let result;
+        let re = /Bug ([0-9]+)/ig;
+        while ((result = re.exec(html)) !== null) {
+          bugs.push(result[1]);
+        }
+
+        return bugs;
+      })
+    )
+  )
+  .then(arrays => {
+    if (arrays.length === 0) {
+      return [];
+    }
+
+    return arrays[0]
+    .filter(elem => {
+      let is_everywhere = true;
+
+      for (let array of arrays.slice(1)) {
+        is_everywhere &= array.includes(elem);
+      }
+
+      return is_everywhere;
+    })
+  });
+}
+
+onLoad
+.then(function() {
+  document.getElementById('getCommonLandings').onclick = function() {
+    getCommonLandings()
+    .then(bugs => {
+      if (bugs.length === 0) {
+        return 'None';
+      }
+
+      return bugs.join(', ');
+    })
+    .then(text => {
+      document.getElementById('results').textContent = text;
+    })
+  };
+});
+
--- a/images/common_landings.png
+++ b/images/common_landings.png
--- a/index.html
+++ b/index.html
@ -31,8 +31,12 @@ td {
  <tr>
    <td><a href="buildid_changeset.html">Build ID <-> Changeset conversion</a></td>
    <td><img src="images/buildid_changeset.png" alt="Build ID <-> Changeset conversion" width="192" height="16" /></td>
+    <td><a href="common_landings.html">Find common landings between channels</a></td>
+    <td><img src="images/common_landings.png" alt="Find common landings between channels" width="192" height="96" /></td>
    <td><a href="addon_related_signatures.html">List of addon-related signatures</a></td>
    <td><img src="images/addon_related_signatures.png" alt="List of addon-related signatures" width="192" height="96" /></td>
+  </tr>
+  <tr>
    <td><a href="graphics_critical_errors.html">List of graphics critical errors</a></td>
    <td><img src="images/graphics_critical_errors.png" alt="List of graphics critical errors" width="192" height="96" /></td>
  </tr>