feat: export with dialog for file name

cmd/gdu/app/app.go

@@ -43,7 +43,6 @@ type Flags struct {
 	CfgFile           string   `yaml:"-"`
 	LogFile           string   `yaml:"log-file"`
 	InputFile         string   `yaml:"input-file"`
-	ExportTree        string   `yaml:"export-file"`
 	OutputFile        string   `yaml:"output-file"`
 	IgnoreDirs        []string `yaml:"ignore-dirs"`
 	IgnoreDirPatterns []string `yaml:"ignore-dir-patterns"`
@@ -254,12 +253,6 @@ func (a *App) createUI() (UI, error) {
 			})
 		}
 
-    if a.Flags.ExportTree != "" {
-			opts = append(opts, func(ui *tui.UI) {
-				ui.SetExportTree(a.Flags.ExportTree)
-			})
-    }
-
 		ui = tui.CreateUI(
 			a.TermApp,
 			a.Screen,

cmd/gdu/main.go

@@ -42,7 +42,6 @@ func init() {
 	flags.StringVarP(&af.LogFile, "log-file", "l", "/dev/null", "Path to a logfile")
 	flags.StringVarP(&af.OutputFile, "output-file", "o", "", "Export all info into file as JSON")
 	flags.StringVarP(&af.InputFile, "input-file", "f", "", "Import analysis from JSON file")
-	flags.StringVarP(&af.ExportTree, "export-file", "e", "", "Export all info into file as JSON when doing uppercase S")
 	flags.IntVarP(&af.MaxCores, "max-cores", "m", runtime.NumCPU(), fmt.Sprintf("Set max cores that GDU will use. %d cores available", runtime.NumCPU()))
 	flags.BoolVarP(&af.ShowVersion, "version", "v", false, "Print version")
 

tui/actions.go

@@ -2,13 +2,16 @@ package tui
 
 import (
 	"bufio"
+	"bytes"
 	"fmt"
 	"io"
 	"os"
 	"os/exec"
 	"runtime"
 	"runtime/debug"
+	"strconv"
 	"strings"
+	"time"
 
 	"github.com/dundee/gdu/v5/build"
 	"github.com/dundee/gdu/v5/pkg/analyze"
@@ -380,3 +383,72 @@ func (ui *UI) openItem() {
 		ui.showErr("Error opening", err)
 	}
 }
+
+func (ui *UI) confirmExport() {
+	form := tview.NewForm().
+		AddInputField("File name", "export.json", 30, nil, func(v string) {
+			ui.exportName = v
+		}).
+		AddButton("Export", ui.exportAnalysis).
+		SetButtonsAlign(tview.AlignCenter)
+	form.SetBorder(true).
+		SetTitle(" Export data to JSON ").
+		SetInputCapture(func(key *tcell.EventKey) *tcell.EventKey {
+			if key.Key() == tcell.KeyEsc {
+				ui.pages.RemovePage("export")
+				ui.app.SetFocus(ui.table)
+				return nil
+			}
+			return key
+		})
+	flex := modal(form, 50, 7)
+	ui.pages.AddPage("export", flex, true, true)
+	ui.app.SetFocus(form)
+}
+
+func (ui *UI) exportAnalysis() {
+	ui.pages.RemovePage("export")
+
+	text := tview.NewTextView().SetText("Export in progress...").SetTextAlign(tview.AlignCenter)
+	text.SetBorder(true).SetTitle(" Export data to JSON ")
+	flex := modal(text, 50, 3)
+	ui.pages.AddPage("exporting", flex, true, true)
+
+	go func() {
+		var err error
+		defer ui.app.QueueUpdateDraw(func() {
+			ui.pages.RemovePage("exporting")
+			if err == nil {
+				ui.app.SetFocus(ui.table)
+			}
+		})
+
+		var buff bytes.Buffer
+
+		buff.Write([]byte(`[1,2,{"progname":"gdu","progver":"`))
+		buff.Write([]byte(build.Version))
+		buff.Write([]byte(`","timestamp":`))
+		buff.Write([]byte(strconv.FormatInt(time.Now().Unix(), 10)))
+		buff.Write([]byte("},\n"))
+
+		file, err := os.Create(ui.exportName)
+		if err != nil {
+			ui.showErrFromGo("Error creating file", err)
+			return
+		}
+
+		if err = ui.topDir.EncodeJSON(&buff, true); err != nil {
+			ui.showErrFromGo("Error encoding JSON", err)
+			return
+		}
+
+		if _, err = buff.Write([]byte("]\n")); err != nil {
+			ui.showErrFromGo("Error writting to buffer", err)
+			return
+		}
+		if _, err = buff.WriteTo(file); err != nil {
+			ui.showErrFromGo("Error writting to file", err)
+			return
+		}
+	}()
+}

tui/keys.go

@@ -2,10 +2,6 @@ package tui
 
 import (
 	"fmt"
-	"bytes"
-	"strconv"
-	"time"
-	"os"
 
 	"github.com/dundee/gdu/v5/pkg/fs"
 	"github.com/gdamore/tcell/v2"
@@ -17,7 +13,7 @@ func (ui *UI) keyPressed(key *tcell.EventKey) *tcell.EventKey {
 		return nil
 	}
 
-	if ui.pages.HasPage("file") {
+	if ui.pages.HasPage("file") || ui.pages.HasPage("export") {
 		return key // send event to primitive
 	}
 	if ui.filtering {
@@ -235,23 +231,9 @@ func (ui *UI) handleMainActions(key *tcell.EventKey) *tcell.EventKey {
 		if ui.currentDir != nil {
 			ui.rescanDir()
 		}
-	case 'S':
-    var buff bytes.Buffer
-
-    buff.Write([]byte(`[1,2,{"progname":"gdu","progver":"`))
-    //~ buff.Write([]byte(build.Version))
-    buff.Write([]byte(`","timestamp":`))
-    buff.Write([]byte(strconv.FormatInt(time.Now().Unix(), 10)))
-    buff.Write([]byte("},\n"))
-
-    file, fileErr := os.Create(ui.exportTree)
-    if fileErr != nil {
-        fmt.Println(fileErr)
-    }
-
-    ui.topDir.EncodeJSON(&buff, true)
-    buff.Write([]byte("]\n"))
-    buff.WriteTo(file)
+	case 'E':
+		ui.confirmExport()
+		return nil
 	case 's':
 		ui.setSorting("size")
 	case 'C':

tui/show.go

@@ -17,7 +17,7 @@ const helpText = `     [::b]up/down, k/j    [white:black:-]Move cursor up/down
          [::b]left, h     [white:black:-]Go to parent directory
 
                [::b]r     [white:black:-]Rescan current directory
-               [::b]S     [white:black:-]Export actual tree
+               [::b]E     [white:black:-]Export analysis data to file as JSON
                [::b]/     [white:black:-]Search items by name
                [::b]a     [white:black:-]Toggle between showing disk usage and apparent size
                [::b]B     [white:black:-]Toggle bar alignment to biggest file or directory
@@ -234,6 +234,13 @@ func (ui *UI) showErr(msg string, err error) {
 	}
 
 	ui.pages.AddPage("error", modal, true, true)
+	ui.app.SetFocus(modal)
+}
+
+func (ui *UI) showErrFromGo(msg string, err error) {
+	ui.app.QueueUpdateDraw(func() {
+		ui.showErr(msg, err)
+	})
 }
 
 func (ui *UI) showHelp() {

tui/tui.go

@@ -33,7 +33,6 @@ type UI struct {
 	topDir                  fs.Item
 	topDirPath              string
 	currentDirPath          string
-	exportTree              string
 	askBeforeDelete         bool
 	showItemCount           bool
 	showMtime               bool
@@ -55,6 +54,7 @@ type UI struct {
 	defaultSortBy           string
 	defaultSortOrder        string
 	markedRows              map[int]struct{}
+	exportName              string
 }
 
 // Option is optional function customizing the bahaviour of UI
@@ -96,6 +96,7 @@ func CreateUI(
 		defaultSortBy:           "size",
 		defaultSortOrder:        "desc",
 		markedRows:              make(map[int]struct{}),
+		exportName:              "export.json",
 	}
 	for _, o := range opts {
 		o(ui)
@@ -182,11 +183,6 @@ func (ui *UI) SetCurrentItemNameMaxLen(len int) {
 	ui.currentItemNameMaxLen = len
 }
 
-// SetExportTree set the path where to export when doing the key "S"
-func (ui *UI) SetExportTree(path string) {
-	ui.exportTree = path
-}
-
 // UseOldSizeBar uses the old size bar (# chars) instead of the new one (unicode block elements)
 func (ui *UI) UseOldSizeBar() {
 	ui.useOldSizeBar = true

tui/utils.go

@@ -2,6 +2,7 @@ package tui
 
 import (
 	"github.com/dundee/gdu/v5/pkg/device"
+	"github.com/rivo/tview"
 )
 
 var (
@@ -65,3 +66,13 @@ func min(a, b int) int {
 	}
 	return b
 }
+
+func modal(p tview.Primitive, width, height int) tview.Primitive {
+	return tview.NewFlex().
+		AddItem(nil, 0, 1, false).
+		AddItem(tview.NewFlex().SetDirection(tview.FlexRow).
+			AddItem(nil, 0, 1, false).
+			AddItem(p, height, 1, true).
+			AddItem(nil, 0, 1, false), width, 1, true).
+		AddItem(nil, 0, 1, false)
+}