'initial commit'

.babelrc

@@ -1,3 +1,6 @@
 {
-  "presets": ["@babel/preset-env", "@babel/preset-typescript"]
+  "presets": [
+    ["@babel/preset-env", { "targets": { "node": 10 } }],
+    "@babel/preset-typescript"
+  ]
 }

index.ts

@@ -4,33 +4,8 @@ import * as github from "@actions/github";
 import fs from "fs-extra";
 import getWorkspaces, { Workspace } from "get-workspaces";
 import path from "path";
-import { getChangelogEntry } from "./utils";
-
-async function execWithOutput(
-  command: string,
-  args?: string[],
-  options?: { ignoreReturnCode?: boolean }
-) {
-  let myOutput = "";
-  let myError = "";
-
-  return {
-    code: await exec(command, args, {
-      listeners: {
-        stdout: (data: Buffer) => {
-          myOutput += data.toString();
-        },
-        stderr: (data: Buffer) => {
-          myError += data.toString();
-        }
-      },
-
-      ...options
-    }),
-    stdout: myOutput,
-    stderr: myError
-  };
-}
+import { getChangelogEntry, execWithOutput, getChangedPackages } from "./utils";
+import * as semver from "semver";
 
 (async () => {
   let githubToken = process.env.GITHUB_TOKEN;
@@ -209,24 +184,23 @@ async function execWithOutput(
   }
   if (shouldBump) {
     await exec("git", ["reset", "--hard", github.context.sha]);
+    let changesetsCliPkgJson = await fs.readJson(
+      require.resolve("@changesets/cli/package.json")
+    );
+    let cmd = semver.lt(changesetsCliPkgJson.version, "2.0.0")
+      ? "bump"
+      : "version";
     let output = await execWithOutput("node", [
       "./node_modules/.bin/changeset",
-      "bump"
+      cmd
     ]);
     let searchQuery = `repo:${repo}+state:open+head:changeset-release+base:${defaultBranch}`;
     let searchResultPromise = octokit.search.issuesAndPullRequests({
       q: searchQuery
     });
+    let changedWorkspaces = await getChangedPackages(process.cwd());
+
     let prBodyPromise = (async () => {
-      let updateChangelogRegex = /Updated file (.+)/;
-      let changelogFilenames = [];
-      for (let line of output.stdout.split("\n")) {
-        let match = line.match(updateChangelogRegex);
-        if (match === null) {
-          continue;
-        }
-        changelogFilenames.push(match[1]);
-      }
       return (
         `This PR was opened by the Changesets release GitHub action. When you're ready to do a release, you can merge this and ${
           publishScript
@@ -237,24 +211,25 @@ async function execWithOutput(
 # Releases
 ` +
         (await Promise.all(
-          changelogFilenames.map(async filename => {
-            let [pkgJsonContent, changelogContents] = await Promise.all([
-              fs.readJson(path.join(path.dirname(filename), "package.json")),
-              fs.readFile(filename, "utf8")
-            ]);
+          changedWorkspaces.map(async workspace => {
+            let changelogContents = await fs.readFile(
+              path.join(workspace.dir, "CHANGELOG.md"),
+              "utf8"
+            );
 
             let entry = getChangelogEntry(
               changelogContents,
-              pkgJsonContent.version
+              workspace.config.version
             );
             return {
               highestLevel: entry.highestLevel,
               content:
-                `## ${pkgJsonContent.name}@${pkgJsonContent.version}\n\n` +
+                `## ${workspace.name}@${workspace.config.version}\n\n` +
                 entry.content
             };
           })
         ))
+          .filter(x => x)
           .sort((a, b) => b.highestLevel - a.highestLevel)
           .map(x => x.content)
           .join("\n ")

package.json

@@ -22,6 +22,7 @@
     "@types/fs-extra": "^8.0.0",
     "@types/jest": "^24.0.18",
     "@types/node": "^12.7.1",
+    "@types/semver": "^6.0.2",
     "babel-jest": "^24.9.0",
     "fs-extra": "^8.1.0",
     "get-workspaces": "^0.4.0",
@@ -30,6 +31,8 @@
     "mdast-util-to-string": "^1.0.6",
     "remark-parse": "^7.0.1",
     "remark-stringify": "^7.0.3",
+    "semver": "^6.3.0",
+    "tempy": "^0.3.0",
     "unified": "^8.3.2"
   },
   "husky": {

utils.test.ts

@@ -1,4 +1,8 @@
-import { getChangelogEntry, BumpLevels } from "./utils";
+import { getChangelogEntry, BumpLevels, getChangedPackages } from "./utils";
+import tempy from "tempy";
+import { exec } from "@actions/exec";
+import * as fs from "fs-extra";
+import path from "path";
 
 let changelog = `# @keystone-alpha/email
 
@@ -78,3 +82,25 @@ test("it works", () => {
   expect(entry.content).toMatchSnapshot();
   expect(entry.highestLevel).toBe(BumpLevels.patch);
 });
+
+test("getChangedPackages works", async () => {
+  let dir = tempy.directory();
+  await exec("git", ["init"], { cwd: dir });
+  await fs.writeJson(path.join(dir, "package.json"), {
+    name: "some-package",
+    version: "1.0.0"
+  });
+  await exec("git", ["add", "."]);
+  await exec("git", ["commit", "-m", "'initial commit'"]);
+  let emptyWorkspaces = await getChangedPackages(dir);
+  expect(emptyWorkspaces).toEqual([]);
+  let workspace = {
+    name: "some-package",
+    version: "2.0.0"
+  };
+  await fs.writeJson(path.join(dir, "package.json"), workspace);
+  let workspaces = await getChangedPackages(dir);
+  expect(workspaces).toEqual([
+    { name: "some-package", dir, config: workspace }
+  ]);
+});

utils.ts

@@ -3,6 +3,10 @@ import remarkParse from "remark-parse";
 import remarkStringify from "remark-stringify";
 // @ts-ignore
 import mdastToString from "mdast-util-to-string";
+import { exec } from "@actions/exec";
+import * as core from "@actions/core";
+import getWorkspaces, { Workspace } from "get-workspaces";
+import path from "path";
 
 export const BumpLevels = {
   dep: 0,
@@ -11,6 +15,33 @@ export const BumpLevels = {
   major: 3
 } as const;
 
+export async function getChangedPackages(cwd: string) {
+  let workspaces = await getWorkspaces({
+    cwd,
+    tools: ["bolt", "yarn", "root"]
+  });
+
+  if (!workspaces) {
+    core.setFailed("Could not find workspaces");
+    return process.exit(1);
+  }
+
+  let workspacesByDirectory = new Map(workspaces.map(x => [x.dir, x]));
+
+  let output = await execWithOutput("git", ["diff", "--only-names"], { cwd });
+  let names = output.stdout.split("\n");
+  let changedWorkspaces: Workspace[] = [];
+  for (let name of names) {
+    let dirname = path.dirname(name);
+    let workspace = workspacesByDirectory.get(dirname);
+    if (workspace !== undefined) {
+      changedWorkspaces.push(workspace);
+    }
+  }
+
+  return changedWorkspaces;
+}
+
 export function getChangelogEntry(changelog: string, version: string) {
   let ast = unified()
     .use(remarkParse)
@@ -66,3 +97,29 @@ export function getChangelogEntry(changelog: string, version: string) {
     highestLevel: highestLevel
   };
 }
+
+export async function execWithOutput(
+  command: string,
+  args?: string[],
+  options?: { ignoreReturnCode?: boolean; cwd?: string }
+) {
+  let myOutput = "";
+  let myError = "";
+
+  return {
+    code: await exec(command, args, {
+      listeners: {
+        stdout: (data: Buffer) => {
+          myOutput += data.toString();
+        },
+        stderr: (data: Buffer) => {
+          myError += data.toString();
+        }
+      },
+
+      ...options
+    }),
+    stdout: myOutput,
+    stderr: myError
+  };
+}

yarn.lock

@@ -1358,6 +1358,11 @@
   resolved "https://registry.yarnpkg.com/@types/q/-/q-1.5.2.tgz#690a1475b84f2a884fd07cd797c00f5f31356ea8"
   integrity sha512-ce5d3q03Ex0sy4R14722Rmt6MT07Ua+k4FwDfdcToYJcMKNtRVQvJ6JCAPdAmAnbRb6CsX6aYb9m96NGod9uTw==
 
+"@types/semver@^6.0.2":
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/@types/semver/-/semver-6.0.2.tgz#5e8b09f0e4af53034b1d0fb9977a277847836205"
+  integrity sha512-G1Ggy7/9Nsa1Jt2yiBR2riEuyK2DFNnqow6R7cromXPMNynackRY1vqFTLz/gwnef1LHokbXThcPhqMRjUbkpQ==
+
 "@types/stack-utils@^1.0.1":
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/@types/stack-utils/-/stack-utils-1.0.1.tgz#0a851d3bd96498fa25c33ab7278ed3bd65f06c3e"
@@ -2345,6 +2350,11 @@ crypto-browserify@^3.11.0:
     randombytes "^2.0.0"
     randomfill "^1.0.3"
 
+crypto-random-string@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-1.0.0.tgz#a230f64f568310e1498009940790ec99545bca7e"
+  integrity sha1-ojD2T1aDEOFJgAmUB5DsmVRbyn4=
+
 [email protected], css-color-names@^0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/css-color-names/-/css-color-names-0.0.4.tgz#808adc2e79cf84738069b646cb20ec27beb629e0"
@@ -6989,6 +6999,20 @@ tar@^4:
     safe-buffer "^5.1.2"
     yallist "^3.0.3"
 
+temp-dir@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/temp-dir/-/temp-dir-1.0.0.tgz#0a7c0ea26d3a39afa7e0ebea9c1fc0bc4daa011d"
+  integrity sha1-CnwOom06Oa+n4OvqnB/AvE2qAR0=
+
+tempy@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/tempy/-/tempy-0.3.0.tgz#6f6c5b295695a16130996ad5ab01a8bd726e8bf8"
+  integrity sha512-WrH/pui8YCwmeiAoxV+lpRH9HpRtgBhSR2ViBPgpGb/wnYDzp21R4MN45fsCGvLROvY67o3byhJRYRONJyImVQ==
+  dependencies:
+    temp-dir "^1.0.0"
+    type-fest "^0.3.1"
+    unique-string "^1.0.0"
+
 terser@^3.7.3:
   version "3.17.0"
   resolved "https://registry.yarnpkg.com/terser/-/terser-3.17.0.tgz#f88ffbeda0deb5637f9d24b0da66f4e15ab10cb2"
@@ -7178,6 +7202,11 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
+type-fest@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.3.1.tgz#63d00d204e059474fe5e1b7c011112bbd1dc29e1"
+  integrity sha512-cUGJnCdr4STbePCgqNFbpVNCepa+kAVohJs1sLhxzdH+gnEoOd8VhbYa7pD3zZYGiURWM2xzEII3fQcRizDkYQ==
+
 type-fest@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.6.0.tgz#8d2a2370d3df886eb5c90ada1c5bf6188acf838b"
@@ -7299,6 +7328,13 @@ uniqs@^2.0.0:
   resolved "https://registry.yarnpkg.com/uniqs/-/uniqs-2.0.0.tgz#ffede4b36b25290696e6e165d4a59edb998e6b02"
   integrity sha1-/+3ks2slKQaW5uFl1KWe25mOawI=
 
+unique-string@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/unique-string/-/unique-string-1.0.0.tgz#9e1057cca851abb93398f8b33ae187b99caec11a"
+  integrity sha1-nhBXzKhRq7kzmPizOuGHuZyuwRo=
+  dependencies:
+    crypto-random-string "^1.0.0"
+
 unist-util-is@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/unist-util-is/-/unist-util-is-3.0.0.tgz#d9e84381c2468e82629e4a5be9d7d05a2dd324cd"