Add install command

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

cmd/install.go

@@ -0,0 +1,64 @@
+package cmd
+
+import (
+	"github.com/se7entyse7en/pydockenv/internal/dependency"
+	"github.com/se7entyse7en/pydockenv/log"
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+var installCmd = &cobra.Command{
+	Use:   "install [package_1] [package_2] ... [package_n]",
+	Short: "Install packages from args or from a requirements file",
+	Args:  cobra.ExactArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		logger := log.Logger
+		err := log.SetupLogger(cmd)
+		if err != nil {
+			logger.WithError(err).Fatal("Cannot setup logger")
+		}
+
+		cmdArgs, err := parseInstallArgs(cmd, args)
+		if err != nil {
+			logger.WithError(err).Fatal("Cannot parse arguments")
+		}
+
+		ctxLogger := logger.WithFields(logrus.Fields{
+			"packages": cmdArgs.Packages,
+			"file":     cmdArgs.RequirementsFile,
+		})
+		ctxLogger.Info("Installing packages...")
+
+		if err := dependency.Install(&dependency.Requirements{
+			FileName: cmdArgs.RequirementsFile,
+			Packages: dependency.Packages{RawDependencies: cmdArgs.Packages},
+		}); err != nil {
+			logger.WithError(err).Fatal("Cannot install packages")
+		}
+
+		ctxLogger.Info("Packages installed!")
+	},
+}
+
+func parseInstallArgs(cmd *cobra.Command, args []string) (*installArgs, error) {
+	requirementsFile, err := getStringArg(cmd, "file")
+	if err != nil {
+		return nil, err
+	}
+
+	return &installArgs{
+		Packages:         args,
+		RequirementsFile: requirementsFile,
+	}, nil
+}
+
+type installArgs struct {
+	Packages         []string
+	RequirementsFile string
+}
+
+func init() {
+	rootCmd.AddCommand(installCmd)
+
+	installCmd.Flags().StringP("file", "f", "", "Requirements file")
+}