Add support to importing of value from a file

bolt_model.go

@@ -756,3 +756,36 @@ func writeToFile(fn, s string, mode int) error {
 	}
 	return nil
 }
+
+func importValue(path []string, fName string) error {
+	if AppArgs.ReadOnly {
+		return errors.New("DB is in Read-Only Mode")
+	}
+	return db.Update(func(tx *bolt.Tx) error {
+		// len(b.GetPath())-1 is the key for the pair we're updating,
+		// the rest are buckets leading to that key
+		b := tx.Bucket([]byte(path[0]))
+		if b == nil {
+			// Invalid path, try for the root bucket
+			b = tx.Cursor().Bucket()
+		}
+		if b != nil {
+			if len(path) > 0 {
+				for i := range path[1 : len(path)-1] {
+					b = b.Bucket([]byte(path[i+1]))
+					if b == nil {
+						return errors.New("updatePairValue: Invalid Path")
+					}
+				}
+			}
+			// Now update the last key in the path
+			bk := []byte(path[len(path)-1])
+			v, err := os.ReadFile(fName)
+			if err != nil {
+				return err
+			}
+			return b.Put(bk, v)
+		}
+		return errors.New("importValue: Invalid Bucket")
+	})
+}

screen_about.go

@@ -3,7 +3,7 @@ package main
 import (
 	"fmt"
 
-	"github.com/br0xen/termbox-util"
+	termboxUtil "github.com/br0xen/termbox-util"
 	"github.com/nsf/termbox-go"
 )
 
@@ -111,9 +111,9 @@ func (screen *AboutScreen) drawScreen(style Style) {
 		{"e", "edit value of pair"},
 		{"r", "rename pair/bucket"},
 		{"", ""},
-		{"", ""},
 		{"D", "delete item"},
 		{"x,X", "export as string/json to file"},
+		{"i", "import file to value of pair"},
 		{"", ""},
 		{"?", "this screen"},
 		{"q", "quit program"},

screen_browser.go

@@ -61,9 +61,10 @@ const (
 	modeInsertPairVal = 70  // 0000 0100 0110
 	modeDelete        = 256 // 0001 0000 0000
 	modeModToParent   = 8   // 0000 0000 1000
-	modeExport        = 512 // 0010 0000 0000
-	modeExportValue   = 513 // 0010 0000 0001
-	modeExportJSON    = 514 // 0010 0000 0010
+	modeIO            = 512 // 0010 0000 0000
+	modeIOExportValue = 513 // 0010 0000 0001
+	modeIOExportJSON  = 514 // 0010 0000 0010
+	modeIOImportValue = 516 // 0010 0000 0100
 )
 
 /*
@@ -88,8 +89,8 @@ func (screen *BrowserScreen) handleKeyEvent(event termbox.Event) int {
 		return screen.handleInsertKeyEvent(event)
 	} else if screen.mode == modeDelete {
 		return screen.handleDeleteKeyEvent(event)
-	} else if screen.mode&modeExport == modeExport {
-		return screen.handleExportKeyEvent(event)
+	} else if screen.mode&modeIO == modeIO {
+		return screen.handleIOKeyEvent(event)
 	}
 	return BrowserScreenIndex
 }
@@ -204,11 +205,14 @@ func (screen *BrowserScreen) handleBrowseKeyEvent(event termbox.Event) int {
 	} else if event.Ch == 'D' {
 		screen.startDeleteItem()
 	} else if event.Ch == 'x' {
-		// Export Value
+		// Export Value to a file
 		screen.startExportValue()
 	} else if event.Ch == 'X' {
 		// Export Key/Value (or Bucket) as JSON
 		screen.startExportJSON()
+	} else if event.Ch == 'i' {
+		// Import value from a file
+		screen.startImportValue()
 	}
 	return BrowserScreenIndex
 }
@@ -374,7 +378,7 @@ func (screen *BrowserScreen) handleInsertKeyEvent(event termbox.Event) int {
 	return BrowserScreenIndex
 }
 
-func (screen *BrowserScreen) handleExportKeyEvent(event termbox.Event) int {
+func (screen *BrowserScreen) handleIOKeyEvent(event termbox.Event) int {
 	if event.Key == termbox.KeyEsc {
 		screen.mode = modeBrowse
 		screen.inputModal.Clear()
@@ -383,24 +387,33 @@ func (screen *BrowserScreen) handleExportKeyEvent(event termbox.Event) int {
 		if screen.inputModal.IsDone() {
 			b, p, _ := screen.db.getGenericFromPath(screen.currentPath)
 			fileName := screen.inputModal.GetValue()
-			if screen.mode&modeExportValue == modeExportValue {
+			if screen.mode&modeIOExportValue == modeIOExportValue {
 				// Exporting the value
 				if p != nil {
 					if err := exportValue(screen.currentPath, fileName); err != nil {
-						//screen.setMessage("Error Exporting to file " + fileName + ".")
+						//screen.setMessage("Error exporting to file " + fileName + ".")
 						screen.setMessage(err.Error())
 					} else {
 						screen.setMessage("Value exported to file: " + fileName)
 					}
 				}
-			} else if screen.mode&modeExportJSON == modeExportJSON {
+			} else if screen.mode&modeIOExportJSON == modeIOExportJSON {
 				if b != nil || p != nil {
 					if exportJSON(screen.currentPath, fileName) != nil {
-						screen.setMessage("Error Exporting to file " + fileName + ".")
+						screen.setMessage("Error exporting to file " + fileName + ".")
 					} else {
 						screen.setMessage("Value exported to file: " + fileName)
 					}
 				}
+			} else if screen.mode&modeIOImportValue == modeIOImportValue {
+				if p != nil {
+					if err := importValue(screen.currentPath, fileName); err != nil {
+						screen.setMessage(err.Error())
+					} else {
+						screen.setMessage("Value imported from file: " + fileName)
+						screen.refreshDatabase()
+					}
+				}
 			}
 			screen.mode = modeBrowse
 			screen.inputModal.Clear()
@@ -907,7 +920,7 @@ func (screen *BrowserScreen) startExportValue() bool {
 		mod.SetValue("")
 		mod.Show()
 		screen.inputModal = mod
-		screen.mode = modeExportValue
+		screen.mode = modeIOExportValue
 		return true
 	}
 	screen.setMessage("Couldn't do string export on " + screen.currentPath[len(screen.currentPath)-1] + "(did you mean 'X'?)")
@@ -930,12 +943,30 @@ func (screen *BrowserScreen) startExportJSON() bool {
 		}
 		mod.Show()
 		screen.inputModal = mod
-		screen.mode = modeExportJSON
+		screen.mode = modeIOExportJSON
 		return true
 	}
 	return false
 }
 
+func (screen *BrowserScreen) startImportValue() bool {
+	_, p, e := screen.db.getGenericFromPath(screen.currentPath)
+	if e == nil && p != nil {
+		w, h := termbox.Size()
+		inpW, inpH := (w / 2), 6
+		inpX, inpY := ((w / 2) - (inpW / 2)), ((h / 2) - inpH)
+		mod := termboxUtil.CreateInputModal("", inpX, inpY, inpW, inpH, termbox.ColorWhite, termbox.ColorBlack)
+		mod.SetTitle(termboxUtil.AlignText(fmt.Sprintf("Import value of '%s' from:", p.key), inpW, termboxUtil.AlignCenter))
+		mod.SetValue("")
+		mod.Show()
+		screen.inputModal = mod
+		screen.mode = modeIOImportValue
+		return true
+	}
+	screen.setMessage("Couldn't do import on " + screen.currentPath[len(screen.currentPath)-1] + ", must be a pair.")
+	return false
+}
+
 func (screen *BrowserScreen) setMessage(msg string) {
 	screen.message = msg
 	screen.messageTime = time.Now()