feat(cmd/compression): new subcommand to compress logfiles

cmd/compression/compression.go

@@ -0,0 +1,40 @@
+package compression
+
+import (
+	"log"
+
+	"github.com/go-flucky/flucky/pkg/logfile"
+
+	"github.com/spf13/cobra"
+)
+
+var compression bool
+var configFile string
+
+var compressionCmd = &cobra.Command{
+	Use:     "compression",
+	Short:   "Compress a logfile",
+	Args:    cobra.ExactArgs(1),
+	Example: "flucky compression /var/log/flucky/logfile.csv",
+	Run: func(cmd *cobra.Command, args []string) {
+
+		measuredValueLogfile := logfile.New(args[0])
+		measuredValues, err := measuredValueLogfile.Read()
+		if err != nil {
+			log.Fatalln(err)
+		}
+
+		measuredValues = logfile.Compression(measuredValues)
+
+		err = measuredValueLogfile.Write(measuredValues)
+		if err != nil {
+			log.Fatalln(err)
+		}
+	},
+}
+
+func InitCmd(cmd *cobra.Command, cnfFile string) {
+	configFile = cnfFile
+	cmd.AddCommand(compressionCmd)
+
+}