GitHub Changesets

Improve the Changesets experience in GitHub PRs

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         GitHub Changesets
// @license      MIT
// @homepageURL  https://github.com/bluwy/github-changesets-userscript
// @supportURL   https://github.com/bluwy/github-changesets-userscript
// @namespace    https://greasyfork.org/
// @version      0.1.3
// @description  Improve the Changesets experience in GitHub PRs
// @author       Bjorn Lu
// @match        https://github.com/**
// @icon         https://www.google.com/s2/favicons?sz=64&domain=github.com
// @grant        none
// ==/UserScript==

// Options
const shouldRemoveChangesetBotComment = true
const shouldSkipCache = false

;
(() => {
  var __create = Object.create;
  var __defProp = Object.defineProperty;
  var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
  var __getOwnPropNames = Object.getOwnPropertyNames;
  var __getProtoOf = Object.getPrototypeOf;
  var __hasOwnProp = Object.prototype.hasOwnProperty;
  var __commonJS = (cb, mod) => function __require() {
    return mod || (0, cb[__getOwnPropNames(cb)[0]])((mod = { exports: {} }).exports, mod), mod.exports;
  };
  var __copyProps = (to, from, except, desc) => {
    if (from && typeof from === "object" || typeof from === "function") {
      for (let key of __getOwnPropNames(from))
        if (!__hasOwnProp.call(to, key) && key !== except)
          __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
    }
    return to;
  };
  var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
    // If the importer is in node compatibility mode or this is not an ESM
    // file that has been converted to a CommonJS file using a Babel-
    // compatible transform (i.e. "__esModule" has not been set), then set
    // "default" to the CommonJS "module.exports" for node compatibility.
    isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
    mod
  ));

  // node_modules/human-id/dist/index.js
  var require_dist = __commonJS({
    "node_modules/human-id/dist/index.js"(exports) {
      "use strict";
      var __spreadArray = exports && exports.__spreadArray || function(to, from, pack) {
        if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
          if (ar || !(i in from)) {
            if (!ar) ar = Array.prototype.slice.call(from, 0, i);
            ar[i] = from[i];
          }
        }
        return to.concat(ar || Array.prototype.slice.call(from));
      };
      Object.defineProperty(exports, "__esModule", { value: true });
      exports.minLength = exports.maxLength = exports.poolSize = exports.humanId = exports.adverbs = exports.verbs = exports.nouns = exports.adjectives = void 0;
      exports.adjectives = ["afraid", "all", "angry", "beige", "big", "better", "bitter", "blue", "brave", "breezy", "bright", "brown", "bumpy", "busy", "calm", "chatty", "chilly", "chubby", "clean", "clear", "clever", "cold", "crazy", "cruel", "cuddly", "curly", "curvy", "cute", "common", "cold", "cool", "cyan", "dark", "deep", "dirty", "dry", "dull", "eager", "early", "easy", "eight", "eighty", "eleven", "empty", "every", "evil", "fair", "famous", "fast", "fancy", "few", "fine", "fifty", "five", "flat", "fluffy", "floppy", "forty", "four", "free", "fresh", "fruity", "full", "funny", "fuzzy", "gentle", "giant", "gold", "good", "great", "green", "grumpy", "happy", "heavy", "hip", "honest", "hot", "huge", "hungry", "icy", "itchy", "khaki", "kind", "large", "late", "lazy", "lemon", "legal", "light", "little", "long", "loose", "loud", "lovely", "lucky", "major", "many", "mean", "metal", "mighty", "modern", "moody", "nasty", "neat", "new", "nice", "nine", "ninety", "odd", "old", "olive", "open", "orange", "pink", "plain", "plenty", "polite", "poor", "pretty", "proud", "public", "puny", "petite", "purple", "quick", "quiet", "rare", "real", "ready", "red", "rich", "ripe", "rotten", "rude", "sad", "salty", "seven", "shaggy", "shaky", "sharp", "shiny", "short", "shy", "silent", "silly", "silver", "six", "sixty", "slick", "slimy", "slow", "small", "smart", "smooth", "social", "soft", "solid", "some", "sour", "spicy", "spotty", "stale", "strong", "stupid", "sweet", "swift", "tall", "tame", "tangy", "tasty", "ten", "tender", "thick", "thin", "thirty", "three", "tidy", "tiny", "tired", "tough", "tricky", "true", "twelve", "twenty", "two", "upset", "vast", "violet", "warm", "weak", "wet", "whole", "wicked", "wide", "wild", "wise", "witty", "yellow", "young", "yummy"];
      exports.nouns = ["apes", "animals", "areas", "bars", "banks", "baths", "breads", "bushes", "cloths", "clowns", "clubs", "hoops", "loops", "memes", "papers", "parks", "paths", "showers", "sides", "signs", "sites", "streets", "teeth", "tires", "webs", "actors", "ads", "adults", "aliens", "ants", "apples", "baboons", "badgers", "bags", "bananas", "bats", "beans", "bears", "beds", "beers", "bees", "berries", "bikes", "birds", "boats", "bobcats", "books", "bottles", "boxes", "brooms", "buckets", "bugs", "buses", "buttons", "camels", "cases", "cameras", "candies", "candles", "carpets", "carrots", "carrots", "cars", "cats", "chairs", "chefs", "chicken", "clocks", "clouds", "coats", "cobras", "coins", "corners", "colts", "comics", "cooks", "cougars", "regions", "results", "cows", "crabs", "crabs", "crews", "cups", "cities", "cycles", "dancers", "days", "deer", "dingos", "dodos", "dogs", "dolls", "donkeys", "donuts", "doodles", "doors", "dots", "dragons", "drinks", "dryers", "ducks", "ducks", "eagles", "ears", "eels", "eggs", "ends", "mammals", "emus", "experts", "eyes", "facts", "falcons", "fans", "feet", "files", "flies", "flowers", "forks", "foxes", "friends", "frogs", "games", "garlics", "geckos", "geese", "ghosts", "ghosts", "gifts", "glasses", "goats", "grapes", "groups", "guests", "hairs", "hands", "hats", "heads", "hornets", "horses", "hotels", "hounds", "houses", "humans", "icons", "ideas", "impalas", "insects", "islands", "items", "jars", "jeans", "jobs", "jokes", "keys", "kids", "kings", "kiwis", "knives", "lamps", "lands", "laws", "lemons", "lies", "lights", "lines", "lions", "lizards", "llamas", "mails", "mangos", "maps", "masks", "meals", "melons", "mice", "mirrors", "moments", "moles", "monkeys", "months", "moons", "moose", "mugs", "nails", "needles", "news", "nights", "numbers", "olives", "onions", "oranges", "otters", "owls", "pandas", "pans", "pants", "papayas", "parents", "parts", "parrots", "paws", "peaches", "pears", "peas", "pens", "pets", "phones", "pianos", "pigs", "pillows", "places", "planes", "planets", "plants", "plums", "poems", "poets", "points", "pots", "pugs", "pumas", "queens", "rabbits", "radios", "rats", "ravens", "readers", "rice", "rings", "rivers", "rockets", "rocks", "rooms", "roses", "rules", "schools", "bats", "seals", "seas", "sheep", "shirts", "shoes", "shrimps", "singers", "sloths", "snails", "snakes", "socks", "spiders", "spies", "spoons", "squids", "stars", "states", "steaks", "wings", "suits", "suns", "swans", "symbols", "tables", "taxes", "taxis", "teams", "terms", "things", "ties", "tigers", "times", "tips", "toes", "towns", "tools", "toys", "trains", "trams", "trees", "turkeys", "turtles", "vans", "views", "walls", "walls", "wasps", "waves", "ways", "weeks", "windows", "wolves", "women", "wombats", "words", "worlds", "worms", "yaks", "years", "zebras", "zoos"];
      exports.verbs = ["accept", "act", "add", "admire", "agree", "allow", "appear", "argue", "arrive", "ask", "attack", "attend", "bake", "bathe", "battle", "beam", "beg", "begin", "behave", "bet", "boil", "bow", "brake", "brush", "build", "burn", "buy", "call", "camp", "care", "carry", "change", "cheat", "check", "cheer", "chew", "clap", "clean", "cough", "count", "cover", "crash", "create", "cross", "cry", "cut", "dance", "decide", "deny", "design", "dig", "divide", "do", "double", "doubt", "draw", "dream", "dress", "drive", "drop", "drum", "eat", "end", "enter", "enjoy", "exist", "fail", "fall", "feel", "fetch", "film", "find", "fix", "flash", "float", "flow", "fly", "fold", "follow", "fry", "give", "glow", "go", "grab", "greet", "grin", "grow", "guess", "hammer", "hang", "happen", "heal", "hear", "help", "hide", "hope", "hug", "hunt", "invent", "invite", "itch", "jam", "jog", "join", "joke", "judge", "juggle", "jump", "kick", "kiss", "kneel", "knock", "know", "laugh", "lay", "lead", "learn", "leave", "lick", "like", "lie", "listen", "live", "look", "lose", "love", "make", "march", "marry", "mate", "matter", "melt", "mix", "move", "nail", "notice", "obey", "occur", "open", "own", "pay", "peel", "play", "poke", "post", "press", "prove", "pull", "pump", "pick", "punch", "push", "raise", "read", "refuse", "relate", "relax", "remain", "repair", "repeat", "reply", "report", "rescue", "rest", "retire", "return", "rhyme", "ring", "roll", "rule", "run", "rush", "say", "scream", "see", "search", "sell", "send", "serve", "shake", "share", "shave", "shine", "show", "shop", "shout", "sin", "sink", "sing", "sip", "sit", "sleep", "slide", "smash", "smell", "smile", "smoke", "sneeze", "sniff", "sort", "speak", "spend", "stand", "start", "stay", "stick", "stop", "stare", "study", "strive", "swim", "switch", "take", "talk", "tan", "tap", "taste", "teach", "tease", "tell", "thank", "think", "throw", "tickle", "tie", "trade", "train", "travel", "try", "turn", "type", "unite", "vanish", "visit", "wait", "walk", "warn", "wash", "watch", "wave", "wear", "win", "wink", "wish", "wonder", "work", "worry", "write", "yawn", "yell"];
      exports.adverbs = ["bravely", "brightly", "busily", "daily", "freely", "hungrily", "joyously", "knowlingly", "lazily", "oddly", "mysteriously", "noisily", "politely", "quickly", "quietly", "rapidly", "safely", "sleepily", "slowly", "truly", "yearly"];
      function random(arr) {
        return arr[Math.floor(Math.random() * arr.length)];
      }
      function longest(arr) {
        return arr.reduce(function(a, b) {
          return a.length > b.length ? a : b;
        });
      }
      function shortest(arr) {
        return arr.reduce(function(a, b) {
          return a.length < b.length ? a : b;
        });
      }
      function humanId(options) {
        if (options === void 0) {
          options = {};
        }
        if (typeof options === "string")
          options = { separator: options };
        if (typeof options === "boolean")
          options = { capitalize: options };
        var _a = options.separator, separator = _a === void 0 ? "" : _a, _b = options.capitalize, capitalize = _b === void 0 ? true : _b, _c = options.adjectiveCount, adjectiveCount = _c === void 0 ? 1 : _c, _d = options.addAdverb, addAdverb = _d === void 0 ? false : _d;
        var res = __spreadArray(__spreadArray(__spreadArray([], __spreadArray([], Array(adjectiveCount), true).map(function(_) {
          return random(exports.adjectives);
        }), true), [
          random(exports.nouns),
          random(exports.verbs)
        ], false), addAdverb ? [random(exports.adverbs)] : [], true);
        if (capitalize)
          res = res.map(function(r) {
            return r.charAt(0).toUpperCase() + r.substr(1);
          });
        return res.join(separator);
      }
      exports.humanId = humanId;
      function poolSize(options) {
        if (options === void 0) {
          options = {};
        }
        var _a = options.adjectiveCount, adjectiveCount = _a === void 0 ? 1 : _a, _b = options.addAdverb, addAdverb = _b === void 0 ? false : _b;
        return exports.adjectives.length * adjectiveCount * exports.nouns.length * exports.verbs.length * (addAdverb ? exports.adverbs.length : 1);
      }
      exports.poolSize = poolSize;
      function maxLength(options) {
        if (options === void 0) {
          options = {};
        }
        var _a = options.adjectiveCount, adjectiveCount = _a === void 0 ? 1 : _a, _b = options.addAdverb, addAdverb = _b === void 0 ? false : _b, _c = options.separator, separator = _c === void 0 ? "" : _c;
        return longest(exports.adjectives).length * adjectiveCount + adjectiveCount * separator.length + longest(exports.nouns).length + separator.length + longest(exports.verbs).length + (addAdverb ? longest(exports.adverbs).length + separator.length : 0);
      }
      exports.maxLength = maxLength;
      function minLength(options) {
        if (options === void 0) {
          options = {};
        }
        var _a = options.adjectiveCount, adjectiveCount = _a === void 0 ? 1 : _a, _b = options.addAdverb, addAdverb = _b === void 0 ? false : _b, _c = options.separator, separator = _c === void 0 ? "" : _c;
        return shortest(exports.adjectives).length * adjectiveCount + adjectiveCount * separator.length + shortest(exports.nouns).length + separator.length + shortest(exports.verbs).length + (addAdverb ? shortest(exports.adverbs).length + separator.length : 0);
      }
      exports.minLength = minLength;
      exports.default = humanId;
    }
  });

  // src/index.js
  run();
  document.addEventListener("pjax:end", () => run());
  document.addEventListener("turbo:render", () => run());
  async function run() {
    if (/^\/.+?\/.+?\/pull\/.+$/.exec(location.pathname) && // Skip if sidebar is already added
    !document.querySelector(".sidebar-changesets") && await repoHasChangesetsSetup()) {
      if (shouldRemoveChangesetBotComment) {
        removeChangesetBotComment();
      }
      const updatedPackages = await prHasChangesetFiles();
      await addChangesetSideSection(updatedPackages);
    }
  }
  async function repoHasChangesetsSetup() {
    const orgRepo = window.location.pathname.split("/").slice(1, 3).join("/");
    const baseBranch = document.querySelector(".commit-ref").title.split(":")[1].trim();
    const cacheKey = `github-changesets-userscript:repoHasChangesetsSetup-${orgRepo}-${baseBranch}`;
    const cacheValue = sessionStorage.getItem(cacheKey);
    if (!shouldSkipCache && cacheValue) return cacheValue === "true";
    const changesetsFolderUrl = `https://github.com/${orgRepo}/tree/${baseBranch}/.changeset`;
    const response = await fetch(changesetsFolderUrl, { method: "HEAD" });
    const result = response.status === 200;
    sessionStorage.setItem(cacheKey, result);
    return result;
  }
  async function prHasChangesetFiles() {
    const orgRepo = window.location.pathname.split("/").slice(1, 3).join("/");
    const prNumber = window.location.pathname.split("/").pop();
    const allCommitTimeline = document.querySelectorAll(
      ".js-timeline-item:has(svg.octicon-git-commit) a.markdown-title"
    );
    const prCommitSha = allCommitTimeline[allCommitTimeline.length - 1].href.split("/").slice(-1).join("").slice(0, 7);
    const cacheKey = `github-changesets-userscript:prHasChangesetFiles-${orgRepo}-${prNumber}-${prCommitSha}`;
    const cacheValue = sessionStorage.getItem(cacheKey);
    if (!shouldSkipCache && cacheValue) return JSON.parse(cacheValue);
    const filesUrl = `https://api.github.com/repos/${orgRepo}/pulls/${prNumber}/files`;
    const response = await fetch(filesUrl);
    const files = await response.json();
    const hasChangesetFiles = files.some(
      (file) => file.filename.startsWith(".changeset/")
    );
    if (hasChangesetFiles) {
      const updatedPackages = await getUpdatedPackagesFromAddedChangedFiles(files);
      sessionStorage.setItem(cacheKey, JSON.stringify(updatedPackages));
      return updatedPackages;
    } else {
      sessionStorage.setItem(cacheKey, "{}");
      return {};
    }
  }
  async function addChangesetSideSection(updatedPackages) {
    const { humanId } = await Promise.resolve().then(() => __toESM(require_dist(), 1));
    updatedPackages = sortUpdatedPackages(updatedPackages);
    const headRef = document.querySelector(".commit-ref.head-ref > a").title;
    const orgRepo = headRef.split(":")[0].trim();
    const branch = headRef.split(":")[1].trim();
    const prTitle = document.querySelector(".js-issue-title").textContent.trim();
    const changesetFileName = `.changeset/${humanId({
      separator: "-",
      capitalize: false
    })}.md`;
    const changesetFileContent = `---
"package": patch
---

${prTitle}
`;
    const canEditPr = !!document.querySelector("button.js-title-edit-button");
    const isPrOpen = !!document.querySelector(".gh-header .State.State--open");
    const notificationsSideSection = document.querySelector(
      ".discussion-sidebar-item.sidebar-notifications"
    );
    const plusIcon = `<svg class="octicon octicon-plus" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="16" height="16"><path d="M7.75 2a.75.75 0 0 1 .75.75V7h4.25a.75.75 0 0 1 0 1.5H8.5v4.25a.75.75 0 0 1-1.5 0V8.5H2.75a.75.75 0 0 1 0-1.5H7V2.75A.75.75 0 0 1 7.75 2Z"></path></svg>`;
    let html = canEditPr && isPrOpen ? `<a class="d-block text-bold discussion-sidebar-heading discussion-sidebar-toggle" href="https://github.com/${orgRepo}/new/${branch}?filename=${changesetFileName}&value=${encodeURIComponent(
      changesetFileContent
    )}">Changesets
${plusIcon}</a>` : `<div class="d-block text-bold discussion-sidebar-heading">Changesets</div>`;
    if (Object.keys(updatedPackages).length) {
      html += `<table style="width: 100%; max-width: 400px;">
  <tbody>
    ${Object.entries(updatedPackages).map(([pkg, bumpInfos]) => {
        const bumpElements = bumpInfos.map((info) => {
          if (info.diff) {
            return `<a class="Link--muted" href="${location.origin + location.pathname}/files#diff-${info.diff}">${info.type}</a>`;
          } else {
            return info.type;
          }
        });
        return `<tr>
  <td style="width: 1px; white-space: nowrap; padding-right: 8px; vertical-align: top;">${pkg}</td>
  <td class="color-fg-muted">${bumpElements.join(", ")}</td>
</tr>`;
      }).join("")}
  </tbody>  
</table>`;
    }
    const changesetSideSection = document.createElement("div");
    changesetSideSection.className = "discussion-sidebar-item sidebar-changesets";
    changesetSideSection.innerHTML = html;
    notificationsSideSection.before(changesetSideSection);
  }
  function removeChangesetBotComment() {
    const changesetBotComment = document.querySelector(
      '.js-timeline-item:has(a.author[href="/apps/changeset-bot"])'
    );
    if (changesetBotComment) {
      changesetBotComment.remove();
    }
  }
  async function getUpdatedPackagesFromAddedChangedFiles(changedFiles) {
    const map = {};
    for (const file of changedFiles) {
      if (file.filename.startsWith(".changeset/") && file.status === "added") {
        const lines = parseAddedPatchStringAsLines(file.patch);
        let isInYaml = false;
        for (let i = 0; i < lines.length; i++) {
          const line = lines[i];
          if (line === "---") {
            isInYaml = !isInYaml;
            if (isInYaml) continue;
            else break;
          }
          const match = /^['"](.+?)['"]:\s*(major|minor|patch)\s*$/.exec(line);
          if (!match) continue;
          const pkg = match[1];
          const type = match[2];
          const diff = await getAddedDiff(file.filename, i + 1);
          const packages = map[pkg] || [];
          packages.push({ type, diff });
          map[pkg] = packages;
        }
      }
    }
    return map;
  }
  function parseAddedPatchStringAsLines(patch) {
    return patch.replace(/^@@.*?@@$\n/m, "").replace(/^\+/gm, "").split("\n");
  }
  async function getAddedDiff(filename, line) {
    if (window.isSecureContext && window.crypto && window.crypto.subtle) {
      const filenameSha256 = await sha256(filename);
      return `${filenameSha256}R${line}`;
    }
  }
  async function sha256(message) {
    const encoder = new TextEncoder();
    const data = encoder.encode(message);
    const hashBuffer = await crypto.subtle.digest("SHA-256", data);
    const hashArray = Array.from(new Uint8Array(hashBuffer));
    const hashHex = hashArray.map((b) => b.toString(16).padStart(2, "0")).join("");
    return hashHex;
  }
  function sortUpdatedPackages(map) {
    const newMap = {};
    for (const key of Object.keys(map).sort()) {
      const order = { major: 1, minor: 2, patch: 3 };
      const value = [...map[key]].sort((a, b) => {
        return order[a.type] - order[b.type];
      });
      newMap[key] = value;
    }
    return newMap;
  }
})();