Format and indent JSON values

bolt_model.go

@@ -617,10 +617,8 @@ func exportValue(path []string, fName string) error {
 			bk := []byte(path[len(path)-1])
 			v := b.Get(bk)
 			return writeToFile(fName, string(v)+"\n", os.O_CREATE|os.O_WRONLY|os.O_TRUNC)
-		} else {
-			return errors.New("exportValue: Invalid Bucket")
 		}
-		return nil
+		return errors.New("exportValue: Invalid Bucket")
 	})
 }
 
@@ -646,10 +644,8 @@ func exportJSON(path []string, fName string) error {
 				return writeToFile(fName, genJSONString(b.Bucket(bk)), os.O_CREATE|os.O_WRONLY|os.O_TRUNC)
 			}
 			return writeToFile(fName, genJSONString(b), os.O_CREATE|os.O_WRONLY|os.O_TRUNC)
-		} else {
-			return errors.New("exportValue: Invalid Bucket")
 		}
-		return nil
+		return errors.New("exportValue: Invalid Bucket")
 	})
 }
 

go.mod

@@ -3,6 +3,7 @@ module github.com/br0xen/boltbrowser
 require (
 	github.com/boltdb/bolt v1.3.1
 	github.com/br0xen/termbox-util v0.0.0-20170904143325-de1d4c83380e
-	github.com/mattn/go-runewidth v0.0.3 // indirect
+	github.com/mattn/go-runewidth v0.0.4 // indirect
 	github.com/nsf/termbox-go v0.0.0-20180819125858-b66b20ab708e
+	golang.org/x/sys v0.0.0-20191002091554-b397fe3ad8ed // indirect
 )

go.sum

@@ -2,7 +2,9 @@ github.com/boltdb/bolt v1.3.1 h1:JQmyP4ZBrce+ZQu0dY660FMfatumYDLun9hBCUVIkF4=
 github.com/boltdb/bolt v1.3.1/go.mod h1:clJnj/oiGkjum5o1McbSZDSLxVThjynRyGBgiAx27Ps=
 github.com/br0xen/termbox-util v0.0.0-20170904143325-de1d4c83380e h1:PF4gYXcZfTbAoAk5DPZcvjmq8gyg4gpcmWdT8W+0X1c=
 github.com/br0xen/termbox-util v0.0.0-20170904143325-de1d4c83380e/go.mod h1:x9wJlgOj74OFTOBwXOuO8pBguW37EgYNx51Dbjkfzo4=
-github.com/mattn/go-runewidth v0.0.3 h1:a+kO+98RDGEfo6asOGMmpodZq4FNtnGP54yps8BzLR4=
+github.com/mattn/go-runewidth v0.0.4 h1:2BvfKmzob6Bmd4YsL0zygOqfdFnK7GR4QL06Do4/p7Y=
-github.com/mattn/go-runewidth v0.0.3/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
+github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/nsf/termbox-go v0.0.0-20180819125858-b66b20ab708e h1:fvw0uluMptljaRKSU8459cJ4bmi3qUYyMs5kzpic2fY=
 github.com/nsf/termbox-go v0.0.0-20180819125858-b66b20ab708e/go.mod h1:IuKpRQcYE1Tfu+oAQqaLisqDeXgjyyltCfsaoYN18NQ=
+golang.org/x/sys v0.0.0-20191002091554-b397fe3ad8ed h1:5TJcLJn2a55mJjzYk0yOoqN8X1OdvBDUnaZaKKyQtkY=
+golang.org/x/sys v0.0.0-20191002091554-b397fe3ad8ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

screen_browser.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
 	"strings"
 	"time"
@@ -597,7 +598,7 @@ func (screen *BrowserScreen) drawRightPane(style Style) {
 				startY += screen.drawMultilineText(pathString, 6, startX, startY, (w/2)-1, style.defaultFg, style.defaultBg)
 				keyString := fmt.Sprintf("Key: %s", stringify([]byte(p.key)))
 				startY += screen.drawMultilineText(keyString, 5, startX, startY, (w/2)-1, style.defaultFg, style.defaultBg)
-				valString := fmt.Sprintf("Value: %s", stringify([]byte(p.val)))
+				valString := fmt.Sprintf("Value: %s", formatValue([]byte(p.val)))
 				startY += screen.drawMultilineText(valString, 7, startX, startY, (w/2)-1, style.defaultFg, style.defaultBg)
 			}
 		} else {
@@ -608,6 +609,28 @@ func (screen *BrowserScreen) drawRightPane(style Style) {
 	}
 }
 
+func formatValue(val []byte) []byte {
+	// Attempt JSON parsing and formatting
+	out, err := formatValueJSON(val)
+	if err == nil {
+		return out
+	}
+	return []byte(val)
+}
+
+func formatValueJSON(val []byte) ([]byte, error) {
+	var jsonOut interface{}
+	err := json.Unmarshal(val, &jsonOut)
+	if err != nil {
+		return val, err
+	}
+	out, err := json.MarshalIndent(jsonOut, "", "  ")
+	if err != nil {
+		return val, err
+	}
+	return out, nil
+}
+
 /* drawBucket
  * @bkt *BoltBucket - The bucket to draw
  * @style Style - The style to use
@@ -919,9 +942,9 @@ func (screen *BrowserScreen) drawMultilineText(msg string, indentPadding, startX
 			msg = spacePadding + msg[maxWidth-1:]
 			numLines++
 		}
+		termboxUtil.DrawStringAtPoint(msg, startX, (startY + numLines), fg, bg)
+		numLines++
 	}
-	termboxUtil.DrawStringAtPoint(msg, startX, (startY + numLines), fg, bg)
-	numLines++
 	return numLines
 }