feat: first iteration of monorepo support

README.md

@@ -8,8 +8,7 @@ Use this plugin instead of the default
 [@semantic-release/npm](https://github.com/semantic-release/npm) if you want to
 use Yarn instead of the NPM CLI to publish your packages to the NPM registry.
 
-As an added bonus, this plugin will also publish some simple monorepo patterns
-(currently WIP).
+As an added bonus, this plugin will also publish some simple monorepo patterns.
 
 ## Table of contents
 
@@ -19,6 +18,7 @@ As an added bonus, this plugin will also publish some simple monorepo patterns
 - [Install](#install)
 - [Usage](#usage)
 - [NPM registry authentication](#npm-registry-authentication)
+- [Monorepo support](#monorepo-support)
 - [Configuration](#configuration)
   - [Environment variables](#environment-variables)
   - [`.yarnrc.yml` file](#yarnrcyml-file)
@@ -77,6 +77,24 @@ The NPM authentication configuration is **required** and can be set either via
 > (`username:password`) authentication is strongly discouraged and not supported
 > by this plugin.
 
+## Monorepo support
+
+Currently, simple monorepo versioning and publishing is supported. All
+workspaces versions will be aligned (a.k.a. fixed/locked mode) and when a new
+release is due, all workspaces will be published to the NPM registry.
+
+Monorepos are detected by the presence of a
+[`workspaces`](https://yarnpkg.com/configuration/manifest#workspaces) option in
+the root `package.json` file:
+
+```json
+{
+  "workspaces": ["packages/*"]
+}
+```
+
+See [our roadmap](#roadmap) for further implementation status.
+
 ## Configuration
 
 ### Environment variables
@@ -195,6 +213,12 @@ For example with the
 ## Roadmap
 
 - [ ] Monorepo support
+  - [x] Support for fixed versions
+  - [x] Support for private/non-private root package
+  - [ ] Support for channels (added failing tests)
+  - [ ] Support for release information for each workspace
+  - [ ] Support for independant versions (probably impossible without custom
+        analyze-commits plugin)
 - [ ] Get rid of CJS build once
       [upstream PR 2607](https://github.com/semantic-release/semantic-release/pull/2607)
       lands

src/add-channel.ts

@@ -1,3 +1,4 @@
+import { resolve } from "node:path";
 import type { PackageJson } from "read-pkg";
 import { getImplementation } from "./container.js";
 import type { AddChannelContext } from "./definitions/context.js";
@@ -6,9 +7,10 @@ import { getChannel } from "./get-channel.js";
 import { getRegistry } from "./get-registry.js";
 import { getReleaseInfo } from "./get-release-info.js";
 import { getYarnConfig } from "./get-yarn-config.js";
+import { reasonToNotPublish, shouldPublish } from "./should-publish.js";
 
 export async function addChannel(
-  { npmPublish }: PluginConfig,
+  pluginConfig: PluginConfig,
   pkg: PackageJson,
   context: AddChannelContext
 ) {
@@ -20,12 +22,20 @@ export async function addChannel(
     nextRelease: { version, channel },
     logger,
   } = context;
+  const { pkgRoot } = pluginConfig;
   const execa = await getImplementation("execa");
 
-  if (npmPublish !== false && pkg.private !== true) {
+  if (shouldPublish(pluginConfig, pkg)) {
+    const basePath = pkgRoot ? resolve(cwd, String(pkgRoot)) : cwd;
     const yarnrc = await getYarnConfig(context);
     const registry = getRegistry(pkg, yarnrc, context);
     const distTag = getChannel(channel!);
+    const isMonorepo = typeof pkg.workspaces !== "undefined";
+
+    if (isMonorepo) {
+      logger.log(`Adding npm tags to monorepo workspaces is not supported yet`);
+      return false;
+    }
 
     logger.log(
       `Adding version ${version} to npm registry ${registry} on dist-tag ${distTag}`
@@ -34,7 +44,7 @@ export async function addChannel(
       "yarn",
       ["npm", "tag", "add", `${pkg.name}@${version}`, distTag],
       {
-        cwd,
+        cwd: basePath,
         env,
       }
     );
@@ -49,11 +59,9 @@ export async function addChannel(
     return getReleaseInfo(pkg, context, distTag, registry);
   }
 
-  logger.log(
-    `Skip adding to npm channel as ${
-      npmPublish === false ? "npmPublish" : "package.json's private property"
-    } is ${npmPublish !== false}`
-  );
+  const reason = reasonToNotPublish(pluginConfig, pkg);
+
+  logger.log(`Skip adding to npm channel as ${reason}`);
 
   return false;
 }

src/index.ts

@@ -58,7 +58,9 @@ export async function prepare(
     await verify(pluginConfig, context);
   }
 
-  await prepareNpm(pluginConfig, context);
+  const pkg = await getPkg(pluginConfig, context);
+
+  await prepareNpm(pluginConfig, pkg, context);
 
   prepared = true;
 }
@@ -71,12 +73,12 @@ export async function publish(
     await verify(pluginConfig, context);
   }
 
+  const pkg = await getPkg(pluginConfig, context);
+
   if (!prepared) {
-    await prepareNpm(pluginConfig, context);
+    await prepareNpm(pluginConfig, pkg, context);
   }
 
-  const pkg = await getPkg(pluginConfig, context);
-
   return publishNpm(pluginConfig, pkg, context);
 }
 

src/prepare.ts

@@ -1,5 +1,6 @@
 import fs from "fs-extra";
 import { resolve } from "node:path";
+import type { PackageJson } from "read-pkg";
 import { getImplementation } from "./container.js";
 import type { PrepareContext } from "./definitions/context.js";
 import type { PluginConfig } from "./definitions/pluginConfig.js";
@@ -8,10 +9,39 @@ const TARBALL_FILENAME = "%s-%v.tgz";
 
 export async function prepare(
   { tarballDir, pkgRoot }: PluginConfig,
+  pkg: PackageJson,
   { cwd, env, stdout, stderr, nextRelease: { version }, logger }: PrepareContext
 ) {
   const basePath = pkgRoot ? resolve(cwd, String(pkgRoot)) : cwd;
   const execa = await getImplementation("execa");
+  const isMonorepo = typeof pkg.workspaces !== "undefined";
+  const workspacesPrefix = isMonorepo
+    ? ["workspaces", "foreach", "--topological", "--verbose", "--no-private"]
+    : [];
+
+  if (isMonorepo) {
+    logger.log("Installing Yarn workspace-tools plugin in %s", basePath);
+    const pluginImportResult = execa(
+      "yarn",
+      ["plugin", "import", "workspace-tools"],
+      {
+        cwd: basePath,
+        env,
+      }
+    );
+    pluginImportResult.stdout!.pipe(stdout, { end: false });
+    pluginImportResult.stderr!.pipe(stderr, { end: false });
+    await pluginImportResult;
+
+    logger.log("Running `yarn install` in %s", basePath);
+    const yarnInstallResult = execa("yarn", ["install", "--no-immutable"], {
+      cwd: basePath,
+      env,
+    });
+    yarnInstallResult.stdout!.pipe(stdout, { end: false });
+    yarnInstallResult.stderr!.pipe(stderr, { end: false });
+    await yarnInstallResult;
+  }
 
   logger.log("Installing Yarn version plugin in %s", basePath);
   const pluginImportResult = execa("yarn", ["plugin", "import", "version"], {
@@ -23,10 +53,14 @@ export async function prepare(
   await pluginImportResult;
 
   logger.log("Write version %s to package.json in %s", version, basePath);
-  const versionResult = execa("yarn", ["version", version, "--immediate"], {
-    cwd: basePath,
-    env,
-  });
+  const versionResult = execa(
+    "yarn",
+    [...workspacesPrefix, "version", version, "--immediate"],
+    {
+      cwd: basePath,
+      env,
+    }
+  );
   versionResult.stdout!.pipe(stdout, { end: false });
   versionResult.stderr!.pipe(stderr, { end: false });
   await versionResult;
@@ -36,7 +70,12 @@ export async function prepare(
     await fs.ensureDir(resolve(cwd, tarballDir.trim()));
     const packResult = execa(
       "yarn",
-      ["pack", "--out", resolve(cwd, tarballDir.trim(), TARBALL_FILENAME)],
+      [
+        ...workspacesPrefix,
+        "pack",
+        "--out",
+        resolve(cwd, tarballDir.trim(), TARBALL_FILENAME),
+      ],
       {
         cwd: basePath,
         env,

src/publish.ts

@@ -7,9 +7,10 @@ import { getChannel } from "./get-channel.js";
 import { getRegistry } from "./get-registry.js";
 import { getReleaseInfo } from "./get-release-info.js";
 import { getYarnConfig } from "./get-yarn-config.js";
+import { reasonToNotPublish, shouldPublish } from "./should-publish.js";
 
 export async function publish(
-  { npmPublish, pkgRoot }: PluginConfig,
+  pluginConfig: PluginConfig,
   pkg: PackageJson,
   context: PublishContext
 ) {
@@ -21,21 +22,54 @@ export async function publish(
     nextRelease: { version, channel },
     logger,
   } = context;
+  const { pkgRoot } = pluginConfig;
   const execa = await getImplementation("execa");
 
-  if (npmPublish !== false && pkg.private !== true) {
+  if (shouldPublish(pluginConfig, pkg)) {
     const basePath = pkgRoot ? resolve(cwd, String(pkgRoot)) : cwd;
     const yarnrc = await getYarnConfig(context);
     const registry = getRegistry(pkg, yarnrc, context);
     const distTag = getChannel(channel!);
+    const isMonorepo = typeof pkg.workspaces !== "undefined";
+    const workspacesPrefix = isMonorepo
+      ? ["workspaces", "foreach", "--topological", "--verbose", "--no-private"]
+      : [];
+
+    if (isMonorepo) {
+      logger.log("Installing Yarn workspace-tools plugin in %s", basePath);
+      const pluginImportResult = execa(
+        "yarn",
+        ["plugin", "import", "workspace-tools"],
+        {
+          cwd: basePath,
+          env,
+        }
+      );
+      pluginImportResult.stdout!.pipe(stdout, { end: false });
+      pluginImportResult.stderr!.pipe(stderr, { end: false });
+      await pluginImportResult;
+
+      logger.log("Running `yarn install` in %s", basePath);
+      const yarnInstallResult = execa("yarn", ["install", "--no-immutable"], {
+        cwd: basePath,
+        env,
+      });
+      yarnInstallResult.stdout!.pipe(stdout, { end: false });
+      yarnInstallResult.stderr!.pipe(stderr, { end: false });
+      await yarnInstallResult;
+    }
 
     logger.log(
       `Publishing version ${version} to npm registry ${registry} on dist-tag ${distTag}`
     );
-    const result = execa("yarn", ["npm", "publish", "--tag", distTag], {
-      cwd: basePath,
-      env,
-    });
+    const result = execa(
+      "yarn",
+      [...workspacesPrefix, "npm", "publish", "--tag", distTag],
+      {
+        cwd: basePath,
+        env,
+      }
+    );
     result.stdout!.pipe(stdout, { end: false });
     result.stderr!.pipe(stderr, { end: false });
     await result;
@@ -47,11 +81,9 @@ export async function publish(
     return getReleaseInfo(pkg, context, distTag, registry);
   }
 
-  logger.log(
-    `Skip publishing to npm registry as ${
-      npmPublish === false ? "npmPublish" : "package.json's private property"
-    } is ${npmPublish !== false}`
-  );
+  const reason = reasonToNotPublish(pluginConfig, pkg);
+
+  logger.log(`Skip publishing to npm registry as ${reason}`);
 
   return false;
 }

src/should-publish.ts

@@ -0,0 +1,34 @@
+import type { PackageJson } from "read-pkg";
+import type { PluginConfig } from "./definitions/pluginConfig.js";
+
+/**
+ * Returns [true, null] if `npmPublish` is not `false` and `pkg.private` is not
+ * `true` or `pkg.workspaces` is not `undefined`.
+ * Returns [false, reason] otherwise.
+ */
+function shouldPublishTuple(
+  pluginConfig: PluginConfig,
+  pkg: PackageJson
+): [boolean, string | null] {
+  const reasonToNotPublish =
+    pluginConfig.npmPublish === false
+      ? "npmPublish plugin option is false"
+      : pkg.private === true && typeof pkg.workspaces === "undefined"
+      ? "package is private and has no workspaces"
+      : null;
+
+  const shouldPublish = !reasonToNotPublish;
+
+  return [shouldPublish, reasonToNotPublish];
+}
+
+export function shouldPublish(pluginConfig: PluginConfig, pkg: PackageJson) {
+  return shouldPublishTuple(pluginConfig, pkg)[0];
+}
+
+export function reasonToNotPublish(
+  pluginConfig: PluginConfig,
+  pkg: PackageJson
+) {
+  return shouldPublishTuple(pluginConfig, pkg)[1];
+}

src/verify.ts

@@ -2,6 +2,7 @@ import { getImplementation } from "./container.js";
 import type { VerifyConditionsContext } from "./definitions/context.js";
 import type { PluginConfig } from "./definitions/pluginConfig.js";
 import { getPkg } from "./get-pkg.js";
+import { shouldPublish } from "./should-publish.js";
 import { verifyAuth } from "./verify-auth.js";
 import { verifyConfig } from "./verify-config.js";
 import { verifyYarn } from "./verify-yarn.js";
@@ -23,9 +24,7 @@ export async function verify(
   try {
     const pkg = await getPkg(pluginConfig, context);
 
-    // Verify the npm authentication only if `npmPublish` is not false and
-    // `pkg.private` is not`true`
-    if (pluginConfig.npmPublish !== false && pkg.private !== true) {
+    if (shouldPublish(pluginConfig, pkg)) {
       await verifyAuth(pluginConfig, pkg, context);
     }
   } catch (error: any) {