1 files changed, 0 insertions, 116 deletions

diff --git a/cli/internal/packagemanager/yarn.go b/cli/internal/packagemanager/yarn.go
deleted file mode 100644
index 8779c5f..0000000
--- a/cli/internal/packagemanager/yarn.go
+++ /dev/null
@@ -1,116 +0,0 @@
-package packagemanager
-
-import (
-	"errors"
-	"fmt"
-	"os/exec"
-	"path/filepath"
-	"strings"
-
-	"github.com/Masterminds/semver"
-	"github.com/vercel/turbo/cli/internal/fs"
-	"github.com/vercel/turbo/cli/internal/lockfile"
-	"github.com/vercel/turbo/cli/internal/turbopath"
-)
-
-// NoWorkspacesFoundError is a custom error used so that upstream implementations can switch on it
-type NoWorkspacesFoundError struct{}
-
-func (e *NoWorkspacesFoundError) Error() string {
-	return "package.json: no workspaces found. Turborepo requires Yarn workspaces to be defined in the root package.json"
-}
-
-var nodejsYarn = PackageManager{
-	Name:         "nodejs-yarn",
-	Slug:         "yarn",
-	Command:      "yarn",
-	Specfile:     "package.json",
-	Lockfile:     "yarn.lock",
-	PackageDir:   "node_modules",
-	ArgSeparator: []string{"--"},
-
-	getWorkspaceGlobs: func(rootpath turbopath.AbsoluteSystemPath) ([]string, error) {
-		pkg, err := fs.ReadPackageJSON(rootpath.UntypedJoin("package.json"))
-		if err != nil {
-			return nil, fmt.Errorf("package.json: %w", err)
-		}
-		if len(pkg.Workspaces) == 0 {
-			return nil, &NoWorkspacesFoundError{}
-		}
-		return pkg.Workspaces, nil
-	},
-
-	getWorkspaceIgnores: func(pm PackageManager, rootpath turbopath.AbsoluteSystemPath) ([]string, error) {
-		// function: https://github.com/yarnpkg/yarn/blob/3119382885ea373d3c13d6a846de743eca8c914b/src/config.js#L799
-
-		// Yarn is unique in ignore patterns handling.
-		// The only time it does globbing is for package.json or yarn.json and it scopes the search to each workspace.
-		// For example: `apps/*/node_modules/**/+(package.json|yarn.json)`
-		// The `extglob` `+(package.json|yarn.json)` (from micromatch) after node_modules/** is redundant.
-
-		globs, err := pm.getWorkspaceGlobs(rootpath)
-		if err != nil {
-			// In case of a non-monorepo, the workspaces field is empty and only node_modules in the root should be ignored
-			var e *NoWorkspacesFoundError
-			if errors.As(err, &e) {
-				return []string{"node_modules/**"}, nil
-			}
-
-			return nil, err
-		}
-
-		ignores := make([]string, len(globs))
-
-		for i, glob := range globs {
-			ignores[i] = filepath.Join(glob, "/node_modules/**")
-		}
-
-		return ignores, nil
-	},
-
-	canPrune: func(cwd turbopath.AbsoluteSystemPath) (bool, error) {
-		return true, nil
-	},
-
-	// Versions older than 2.0 are yarn, after that they become berry
-	Matches: func(manager string, version string) (bool, error) {
-		if manager != "yarn" {
-			return false, nil
-		}
-
-		v, err := semver.NewVersion(version)
-		if err != nil {
-			return false, fmt.Errorf("could not parse yarn version: %w", err)
-		}
-		c, err := semver.NewConstraint("<2.0.0-0")
-		if err != nil {
-			return false, fmt.Errorf("could not create constraint: %w", err)
-		}
-
-		return c.Check(v), nil
-	},
-
-	// Detect for yarn needs to identify which version of yarn is running on the system.
-	detect: func(projectDirectory turbopath.AbsoluteSystemPath, packageManager *PackageManager) (bool, error) {
-		specfileExists := projectDirectory.UntypedJoin(packageManager.Specfile).FileExists()
-		lockfileExists := projectDirectory.UntypedJoin(packageManager.Lockfile).FileExists()
-
-		// Short-circuit, definitely not Yarn.
-		if !specfileExists || !lockfileExists {
-			return false, nil
-		}
-
-		cmd := exec.Command("yarn", "--version")
-		cmd.Dir = projectDirectory.ToString()
-		out, err := cmd.Output()
-		if err != nil {
-			return false, fmt.Errorf("could not detect yarn version: %w", err)
-		}
-
-		return packageManager.Matches(packageManager.Slug, strings.TrimSpace(string(out)))
-	},
-
-	UnmarshalLockfile: func(_rootPackageJSON *fs.PackageJSON, contents []byte) (lockfile.Lockfile, error) {
-		return lockfile.DecodeYarnLockfile(contents)
-	},
-}