Add list-packages command

Signed-off-by: Lou Marvin Caraig <[email protected]>

cmd/list_packages.go

@@ -0,0 +1,31 @@
+package cmd
+
+import (
+	"github.com/se7entyse7en/pydockenv/internal/dependency"
+	"github.com/se7entyse7en/pydockenv/log"
+	"github.com/spf13/cobra"
+)
+
+var listPackagesCmd = &cobra.Command{
+	Use:   "list-packages",
+	Short: "List the packages installed for the current virtual environments",
+	Run: func(cmd *cobra.Command, args []string) {
+		logger := log.Logger
+		err := log.SetupLogger(cmd)
+		if err != nil {
+			logger.WithError(err).Fatal("Cannot setup logger")
+		}
+
+		logger.Info("Listing packages...")
+
+		if err := dependency.ListPackage(); err != nil {
+			logger.WithError(err).Fatal("Cannot list packages")
+		}
+
+		logger.Info("Packages listed!")
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(listPackagesCmd)
+}

internal/dependency/dependency.go

@@ -53,6 +53,15 @@ func Uninstall(packages *Packages, yes bool) error {
 	return nil
 }
 
+func ListPackage() error {
+	err := executor.Execute([]string{"pip", "freeze"}, &executor.ExecOptions{})
+	if err != nil {
+		return fmt.Errorf("cannot list packages in container: %w", err)
+	}
+
+	return nil
+}
+
 func buildInstallCmd(requirements *Requirements) []string {
 	cmd := []string{"pip", "install"}
 	if requirements.FileName != "" {