refactor: use a common logger for consistency

All kapow messages will end up in stderr (incl. debug mode).
stdout is reserved for the access logs.

Co-authored-by: Roberto Abdelkader Martínez Pérez <robertomartinezp@gmail.com>

internal/cmd/get.go

@@ -17,12 +17,12 @@
 package cmd
 
 import (
-	"log"
 	"os"
 
 	"github.com/spf13/cobra"
 
 	"github.com/BBVA/kapow/internal/client"
+	"github.com/BBVA/kapow/internal/logger"
 )
 
 // GetCmd is the command line interface for get kapow data operation
@@ -38,7 +38,7 @@ var GetCmd = &cobra.Command{
 
 		err := client.GetData(dataURL, handler, args[0], os.Stdout)
 		if err != nil {
-			log.Fatal(err)
+			logger.L.Fatal(err)
 		}
 	},
 }

internal/cmd/route.go

@@ -18,10 +18,10 @@ package cmd
 
 import (
 	"io/ioutil"
-	"log"
 	"os"
 
 	"github.com/BBVA/kapow/internal/client"
+	"github.com/BBVA/kapow/internal/logger"
 
 	"github.com/spf13/cobra"
 )
@@ -39,7 +39,7 @@ func init() {
 			controlURL, _ := cmd.Flags().GetString("control-url")
 
 			if err := client.ListRoutes(controlURL, os.Stdout); err != nil {
-				log.Fatal(err)
+				logger.L.Fatal(err)
 			}
 		},
 	}
@@ -67,13 +67,13 @@ func init() {
 					buf, err = ioutil.ReadFile(commandFile)
 				}
 				if err != nil {
-					log.Fatal(err)
+					logger.L.Fatal(err)
 				}
 				command = string(buf)
 			}
 
 			if err := client.AddRoute(controlURL, urlPattern, method, entrypoint, command, os.Stdout); err != nil {
-				log.Fatal(err)
+				logger.L.Fatal(err)
 			}
 		},
 	}
@@ -91,7 +91,7 @@ func init() {
 			controlURL, _ := cmd.Flags().GetString("control-url")
 
 			if err := client.RemoveRoute(controlURL, args[0]); err != nil {
-				log.Fatal(err)
+				logger.L.Fatal(err)
 			}
 		},
 	}

internal/cmd/server.go

@@ -18,13 +18,12 @@ package cmd
 
 import (
 	"errors"
-	"fmt"
-	"log"
 	"os"
 	"os/exec"
 
 	"github.com/spf13/cobra"
 
+	"github.com/BBVA/kapow/internal/logger"
 	"github.com/BBVA/kapow/internal/server"
 )
 
@@ -62,9 +61,9 @@ var ServerCmd = &cobra.Command{
 			powfile := args[0]
 			_, err := os.Stat(powfile)
 			if os.IsNotExist(err) {
-				log.Fatalf("%s does not exist", powfile)
+				logger.L.Fatalf("%s does not exist", powfile)
 			}
-			log.Printf("Running powfile: %q\n", powfile)
+			logger.L.Printf("Running powfile: %q\n", powfile)
 			kapowCMD := exec.Command("bash", powfile)
 			kapowCMD.Stdout = os.Stdout
 			kapowCMD.Stderr = os.Stderr
@@ -72,10 +71,9 @@ var ServerCmd = &cobra.Command{
 
 			err = kapowCMD.Run()
 			if err != nil {
-				log.Fatal(err)
+				logger.L.Fatal(err)
 			}
-			fmt.Println()
-			log.Printf("Done running powfile: %q\n", powfile)
+			logger.L.Printf("Done running powfile: %q\n", powfile)
 		}
 
 		select {}

internal/cmd/set.go

@@ -18,11 +18,11 @@ package cmd
 
 import (
 	"io"
-	"log"
 	"os"
 	"strings"
 
 	"github.com/BBVA/kapow/internal/client"
+	"github.com/BBVA/kapow/internal/logger"
 
 	"github.com/spf13/cobra"
 )
@@ -47,7 +47,7 @@ var SetCmd = &cobra.Command{
 		}
 
 		if err := client.SetData(dataURL, handler, path, r); err != nil {
-			log.Fatal(err)
+			logger.L.Fatal(err)
 		}
 	},
 }