pass parameters

Author: lantoli

.gitignore

@@ -1,2 +1,3 @@
 bin
 bin-plugin
+.vscode

go.mod

@@ -2,9 +2,13 @@ module github.com/mongodb-labs/atlas-cli-plugin-terraform
 
 go 1.23.4
 
-require github.com/spf13/cobra v1.8.1
+require (
+	github.com/spf13/afero v1.12.0
+	github.com/spf13/cobra v1.8.1
+)
 
 require (
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
+	golang.org/x/text v0.21.0 // indirect
 )

go.sum

@@ -2,9 +2,13 @@ github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46t
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/spf13/afero v1.12.0 h1:UcOPyRBYczmFn6yvphxkn9ZEOY65cpwGKb5mL36mrqs=
+github.com/spf13/afero v1.12.0/go.mod h1:ZTlWwG4/ahT8W7T0WQ5uYmjI9duaLQGy3Q2OAl4sk/4=
 github.com/spf13/cobra v1.8.1 h1:e5/vxKd/rZsfSJMUX1agtjeTDf+qv1/JdBF8gg5k9ZM=
 github.com/spf13/cobra v1.8.1/go.mod h1:wHxEcudfqmLYa8iTfL+OuZPbBZkmvliBWKIezN3kD9Y=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=
+golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/cli/cluster/cluster.go

@@ -3,18 +3,51 @@ package cluster
 import (
 	"fmt"
 
+	"github.com/spf13/afero"
 	"github.com/spf13/cobra"
 )
 
 func Builder() *cobra.Command {
+	opts := &Opts{fs: afero.NewOsFs()}
 	cmd := &cobra.Command{
 		Use:     "cluster_to_advanced",
 		Short:   "Upgrade cluster to advanced_cluster",
-		Long:    "WIP - Long description for upgrade cluster to advanced_cluster",
+		Long:    "Upgrade Terraform config from mongodbatlas_cluster to mongodbatlas_advanced_cluster",
 		Aliases: []string{"clu2adv"},
-		Run: func(_ *cobra.Command, _ []string) {
-			fmt.Println("WIP - Upgrade cluster to advanced_cluster")
+		PreRunE: func(cmd *cobra.Command, args []string) error {
+			if exists, err := afero.Exists(opts.fs, opts.file); !exists || err != nil {
+				return fmt.Errorf("input file not found: %s", opts.file)
+			}
+			if exists, err := afero.Exists(opts.fs, opts.output); exists || err != nil {
+				return fmt.Errorf("output file can't exist: %s", opts.output)
+			}
+			return nil
+		},
+		RunE: func(_ *cobra.Command, _ []string) error {
+			return opts.Run()
 		},
 	}
+	cmd.Flags().StringVarP(&opts.file, "file", "f", "", "input file")
+	cmd.Flags().StringVarP(&opts.output, "output", "o", "", "output file")
+	_ = cmd.MarkFlagFilename("file")
+	_ = cmd.MarkFlagRequired("file")
+	_ = cmd.MarkFlagRequired("output")
 	return cmd
 }
+
+type Opts struct {
+	fs     afero.Fs
+	file   string
+	output string
+}
+
+func (o *Opts) Run() error {
+	content, err := afero.ReadFile(o.fs, o.file)
+	if err != nil {
+		return fmt.Errorf("failed to read file %s: %w", o.file, err)
+	}
+	if err := afero.WriteFile(o.fs, o.output, content, 0o600); err != nil {
+		return fmt.Errorf("failed to write file %s: %w", o.output, err)
+	}
+	return nil
+}