fix(workspace): resolve glob pattern once to avoid name collision

docs/guide/workspace.md

@@ -26,7 +26,7 @@ export default [
 ```
 :::
 
-Vitest will consider every folder in `packages` as a separate project even if it doesn't have a config file inside.
+Vitest will consider every folder in `packages` as a separate project even if it doesn't have a config file inside. Since Vitest 2.1, if this glob pattern matches any file it will be considered a Vitest config even if it doesn't have a `vitest` in its name.
 
 ::: warning
 Vitest will not consider the root config as a workspace project (so it will not run tests specified in `include`) unless it is specified in this config.
@@ -44,10 +44,6 @@ export default [
 
 This pattern will only include projects with `vitest.config` file that includes `e2e` and `unit` before the extension.
 
-::: warning
-If you are referencing filenames with glob pattern, make sure your config file starts with `vite.config` or `vitest.config`. Otherwise Vitest will skip it.
-:::
-
 You can also define projects with inline config. Workspace file supports using both syntaxes at the same time.
 
 :::code-group
@@ -56,6 +52,7 @@ import { defineWorkspace } from 'vitest/config'
 
 // defineWorkspace provides a nice type hinting DX
 export default defineWorkspace([
+  // matches every folder and file inside the `packages` folder
   'packages/*',
   {
     // add "extends" to merge two configs together

packages/vitest/src/node/workspace/resolveWorkspace.ts

@@ -51,10 +51,11 @@ export async function resolveWorkspace(
   const cwd = process.cwd()
 
   const projects: WorkspaceProject[] = []
+  const fileProjects = [...configFiles, ...nonConfigDirectories]
 
   try {
     // we have to resolve them one by one because CWD should depend on the project
-    for (const filepath of [...configFiles, ...nonConfigDirectories]) {
+    for (const filepath of fileProjects) {
       // if file leads to the root config, then we can just reuse it because we already initialized it
       if (vitest.server.config.configFile === filepath) {
         const project = await vitest._createCoreProject()
@@ -111,12 +112,20 @@ export async function resolveWorkspace(
     const name = project.getName()
     if (names.has(name)) {
       const duplicate = resolvedProjects.find(p => p.getName() === name && p !== project)!
+      const filesError = fileProjects.length
+        ? [
+            '\n\nYour config matched these files:\n',
+            fileProjects.map(p => ` - ${relative(vitest.config.root, p)}`).join('\n'),
+            '\n\n',
+          ].join('')
+        : [' ']
       throw new Error([
         `Project name "${name}"`,
         project.server.config.configFile ? ` from "${relative(vitest.config.root, project.server.config.configFile)}"` : '',
         ' is not unique.',
         duplicate?.server.config.configFile ? ` The project is already defined by "${relative(vitest.config.root, duplicate.server.config.configFile)}".` : '',
-        ' All projects in a workspace should have unique names. Make sure your configuration is correct.',
+        filesError,
+        'All projects in a workspace should have unique names. Make sure your configuration is correct.',
       ].join(''))
     }
     names.add(name)
@@ -196,36 +205,36 @@ async function resolveWorkspaceProjectConfigs(
     else {
       projectsOptions.push(await definition)
     }
+  }
 
-    if (workspaceGlobMatches.length) {
-      const globOptions: GlobOptions = {
-        absolute: true,
-        dot: true,
-        onlyFiles: false,
-        cwd: vitest.config.root,
-        expandDirectories: false,
-        ignore: ['**/node_modules/**', '**/*.timestamp-*'],
-      }
+  if (workspaceGlobMatches.length) {
+    const globOptions: GlobOptions = {
+      absolute: true,
+      dot: true,
+      onlyFiles: false,
+      cwd: vitest.config.root,
+      expandDirectories: false,
+      ignore: ['**/node_modules/**', '**/*.timestamp-*'],
+    }
 
-      const workspacesFs = await glob(workspaceGlobMatches, globOptions)
+    const workspacesFs = await glob(workspaceGlobMatches, globOptions)
 
-      await Promise.all(workspacesFs.map(async (filepath) => {
-        // directories are allowed with a glob like `packages/*`
-        // in this case every directory is treated as a project
-        if (filepath.endsWith('/')) {
-          const configFile = await resolveDirectoryConfig(filepath)
-          if (configFile) {
-            workspaceConfigFiles.push(configFile)
-          }
-          else {
-            nonConfigProjectDirectories.push(filepath)
-          }
+    await Promise.all(workspacesFs.map(async (filepath) => {
+      // directories are allowed with a glob like `packages/*`
+      // in this case every directory is treated as a project
+      if (filepath.endsWith('/')) {
+        const configFile = await resolveDirectoryConfig(filepath)
+        if (configFile) {
+          workspaceConfigFiles.push(configFile)
         }
         else {
-          workspaceConfigFiles.push(filepath)
+          nonConfigProjectDirectories.push(filepath)
         }
-      }))
-    }
+      }
+      else {
+        workspaceConfigFiles.push(filepath)
+      }
+    }))
   }
 
   const projectConfigFiles = Array.from(new Set(workspaceConfigFiles))

test/config/fixtures/workspace/several-folders/apps/b/package.json

@@ -0,0 +1,3 @@
+{
+  "name": "b"
+}

test/config/fixtures/workspace/several-folders/apps/b/test.test.ts

@@ -0,0 +1,3 @@
+import { test } from 'vitest';
+
+test('test - b')

test/config/fixtures/workspace/several-folders/projects/a/package.json

@@ -0,0 +1,3 @@
+{
+  "name": "a"
+}

test/config/fixtures/workspace/several-folders/projects/a/test.test.ts

@@ -0,0 +1,3 @@
+import { test } from 'vitest';
+
+test('test - a')

test/config/fixtures/workspace/several-folders/vitest.workspace.ts

@@ -0,0 +1,4 @@
+export default [
+  'projects/*',
+  'apps/*'
+]

test/config/test/workspace.test.ts

@@ -25,13 +25,29 @@ it('runs the workspace if there are several vitest config files', async () => {
   expect(stdout).toContain('2 + 2 = 4')
 })
 
+it('correctly resolves workspace projects with a several folder globs', async () => {
+  const { stderr, stdout } = await runVitest({
+    root: 'fixtures/workspace/several-folders',
+    workspace: './fixtures/workspace/several-folders/vitest.workspace.ts',
+  })
+  expect(stderr).toBe('')
+  expect(stdout).toContain('test - a')
+  expect(stdout).toContain('test - b')
+})
+
 it('fails if project names are identical with a nice error message', async () => {
   const { stderr } = await runVitest({
     root: 'fixtures/workspace/invalid-duplicate-configs',
     workspace: './fixtures/workspace/invalid-duplicate-configs/vitest.workspace.ts',
   }, [], 'test', {}, { fails: true })
   expect(stderr).toContain(
-    'Project name "test" from "vitest2.config.js" is not unique. The project is already defined by "vitest1.config.js". All projects in a workspace should have unique names. Make sure your configuration is correct.',
+    `Project name "test" from "vitest2.config.js" is not unique. The project is already defined by "vitest1.config.js".
+
+Your config matched these files:
+ - vitest1.config.js
+ - vitest2.config.js
+
+All projects in a workspace should have unique names. Make sure your configuration is correct.`,
   )
 })