1 files changed, 85 insertions, 0 deletions
diff --git a/src/cmd/go/internal/fix/fix.go b/src/cmd/go/internal/fix/fix.go
new file mode 100644
index 0000000..3705b30
--- /dev/null
+++ b/src/cmd/go/internal/fix/fix.go
@@ -0,0 +1,85 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package fix implements the “go fix” command.
+package fix
+
+import (
+	"cmd/go/internal/base"
+	"cmd/go/internal/cfg"
+	"cmd/go/internal/load"
+	"cmd/go/internal/modload"
+	"cmd/go/internal/str"
+	"cmd/go/internal/work"
+	"context"
+	"fmt"
+	"go/build"
+	"os"
+)
+
+var CmdFix = &base.Command{
+	UsageLine: "go fix [-fix list] [packages]",
+	Short:     "update packages to use new APIs",
+	Long: `
+Fix runs the Go fix command on the packages named by the import paths.
+
+The -fix flag sets a comma-separated list of fixes to run.
+The default is all known fixes.
+(Its value is passed to 'go tool fix -r'.)
+
+For more about fix, see 'go doc cmd/fix'.
+For more about specifying packages, see 'go help packages'.
+
+To run fix with other options, run 'go tool fix'.
+
+See also: go fmt, go vet.
+	`,
+}
+
+var fixes = CmdFix.Flag.String("fix", "", "comma-separated list of fixes to apply")
+
+func init() {
+	work.AddBuildFlags(CmdFix, work.DefaultBuildFlags)
+	CmdFix.Run = runFix // fix cycle
+}
+
+func runFix(ctx context.Context, cmd *base.Command, args []string) {
+	pkgs := load.PackagesAndErrors(ctx, load.PackageOpts{}, args)
+	w := 0
+	for _, pkg := range pkgs {
+		if pkg.Error != nil {
+			base.Errorf("%v", pkg.Error)
+			continue
+		}
+		pkgs[w] = pkg
+		w++
+	}
+	pkgs = pkgs[:w]
+
+	printed := false
+	for _, pkg := range pkgs {
+		if modload.Enabled() && pkg.Module != nil && !pkg.Module.Main {
+			if !printed {
+				fmt.Fprintf(os.Stderr, "go: not fixing packages in dependency modules\n")
+				printed = true
+			}
+			continue
+		}
+		// Use pkg.gofiles instead of pkg.Dir so that
+		// the command only applies to this package,
+		// not to packages in subdirectories.
+		files := base.RelPaths(pkg.InternalAllGoFiles())
+		goVersion := ""
+		if pkg.Module != nil {
+			goVersion = "go" + pkg.Module.GoVersion
+		} else if pkg.Standard {
+			goVersion = build.Default.ReleaseTags[len(build.Default.ReleaseTags)-1]
+		}
+		var fixArg []string
+		if *fixes != "" {
+			fixArg = []string{"-r=" + *fixes}
+		}
+		base.Run(str.StringList(cfg.BuildToolexec, base.Tool("fix"), "-go="+goVersion, fixArg, files))
+	}
+}