Add support for fixed packages (#690)

* Add support for `fixed` packages * Add changesets * Delete config.js * Tweak `getHighestReleaseType` implementation * Add a test showcasing how CHANGELOGs are generated for fixed packages that dont have any changeset associated with them Co-authored-by: Mitchell Hamilton <mitchell@hamil.town>

Author: Andarist

.changeset/hotpink-walls-suffer.md

@@ -0,0 +1,5 @@
+---
+"@changesets/types": minor
+---
+
+Add the new `fixed` property to the `Config` type.

.changeset/metal-kangaroos-exercise.md

@@ -0,0 +1,7 @@
+---
+"@changesets/cli": minor
+---
+
+Added a new `.changeset/config.json` option: `fixed`. It can be used to group packages that should always be released together. If any package from a group is going to be released then all packages from that group will be released together (with the same version).
+
+This is similar to what people often know from Lerna as this is how their fixed/locked mode works.

.changeset/pink-walls-suffer.md

@@ -0,0 +1,5 @@
+---
+"@changesets/config": minor
+---
+
+Added parsing and validating of the new `fixed` option. The description for this option has also been added to the JSON schema.

.changeset/rubber-kangaroos-exercise.md

@@ -0,0 +1,5 @@
+---
+"@changesets/assemble-release-plan": minor
+---
+
+Added handling of the `fixed` config option. This adds all the packages from the `fixed` group to the assembled release and added releases end up having the same version.

__fixtures__/fixed-packages/.changeset/README.md

@@ -0,0 +1 @@
+# We just want a file in here so git collects it

__fixtures__/fixed-packages/package.json

@@ -0,0 +1,11 @@
+{
+ "private": true,
+ "name": "simple-project",
+ "description": "two fixed projects",
+ "version": "1.0.0",
+ "bolt": {
+ "workspaces": [
+ "packages/*"
+ ]
+ }
+}

__fixtures__/fixed-packages/packages/pkg-a/package.json

@@ -0,0 +1,7 @@
+{
+ "name": "pkg-a",
+ "version": "1.0.0",
+ "dependencies": {
+ "pkg-b": "1.0.0"
+ }
+}

__fixtures__/fixed-packages/packages/pkg-b/package.json

@@ -0,0 +1,4 @@
+{
+ "name": "pkg-b",
+ "version": "1.0.0"
+}

package.json

@@ -64,7 +64,7 @@
  "jest-junit": "^6.4.0",
  "jest-watch-typeahead": "^0.4.2",
  "prettier": "^1.19.1",
- "typescript": "^3.9.6"
+ "typescript": "^4.5.2"
  },
  "preconstruct": {
  "packages": [

packages/apply-release-plan/src/index.test.ts

@@ -43,6 +43,7 @@ class FakeReleasePlan {
  this.config = {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -79,6 +80,7 @@ async function testSetup(
  config = {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -478,6 +480,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -540,6 +543,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -688,6 +692,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -772,6 +777,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -848,6 +854,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -924,6 +931,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -1003,6 +1011,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -1087,6 +1096,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -1163,6 +1173,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -1239,6 +1250,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -1319,6 +1331,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -1476,6 +1489,7 @@ describe("apply release plan", () => {
  },
  {
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -1584,6 +1598,7 @@ describe("apply release plan", () => {
  null
  ],
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -1668,6 +1683,7 @@ describe("apply release plan", () => {
  null
  ],
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -1756,6 +1772,7 @@ describe("apply release plan", () => {
  null
  ],
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -1858,6 +1875,7 @@ describe("apply release plan", () => {
  null
  ],
  commit: false,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",
@@ -1948,7 +1966,7 @@ describe("apply release plan", () => {
  });
  changedFiles = testResults.changedFiles;
  } catch (e) {
- expect(e.message).toEqual("some string probably");
+ expect((e as Error).message).toEqual("some string probably");
 
  return;
  }
@@ -1987,7 +2005,7 @@ describe("apply release plan", () => {
  releasePlan.config
  );
  } catch (e) {
- expect(e.message).toEqual(
+ expect((e as Error).message).toEqual(
  "Could not find matching package for release of: impossible-package"
  );
 
@@ -2026,7 +2044,7 @@ describe("apply release plan", () => {
  }
  );
  } catch (e) {
- expect(e.message).toEqual("no chance");
+ expect((e as Error).message).toEqual("no chance");
 
  let gitCmd = await spawn("git", ["status"], { cwd: tempDir });
 
@@ -2275,6 +2293,7 @@ describe("apply release plan", () => {
  {
  changelog: false,
  commit: true,
+ fixed: [],
  linked: [],
  access: "restricted",
  baseBranch: "main",