show only installed sdk list for current system

Author: moqsien

internal/installer/install/common.go

@@ -20,6 +20,21 @@ func GetSDKVersionDir(sdkName string) string {
 	return d
 }
 
+func IsSDKInstalledByVMR(sdkName string) bool {
+	vd := GetSDKVersionDir(sdkName)
+	dList, _ := os.ReadDir(vd)
+	count := 0
+	for _, d := range dList {
+		if d.IsDir() {
+			count++
+		}
+	}
+	if count == 0 {
+		os.RemoveAll(vd)
+	}
+	return count > 0
+}
+
 /*
 ============================
 Installation configs.

internal/tui/cmds/cmd.go

@@ -18,6 +18,11 @@ func (v *VmrTUI) ListSDKName() {
 	v.SList = NewSDKSearcher()
 	nextEvent, sdkName := v.SList.Show()
 
+	if nextEvent == KeyEventWhatsInstalled {
+		// show SDKs already installed by vmr.
+		nextEvent, sdkName = v.SList.ShowInstalledOnly()
+	}
+
 	switch nextEvent {
 	case KeyEventSeachVersionList:
 		// search version list for selected sdkname.

internal/tui/cmds/list.go

@@ -4,6 +4,7 @@ import (
 	tea "github.com/charmbracelet/bubbletea"
 	"github.com/gvcgo/goutils/pkgs/gtea/gprint"
 	"github.com/gvcgo/version-manager/internal/download"
+	"github.com/gvcgo/version-manager/internal/installer/install"
 	"github.com/gvcgo/version-manager/internal/terminal"
 	"github.com/gvcgo/version-manager/internal/tui/table"
 	"github.com/gvcgo/version-manager/internal/utils"
@@ -17,6 +18,7 @@ const (
 	KeyEventRemoveLocalInstalled = "remove-installed-versions"
 	KeyEventClearLocalCached     = "clear-local-cached-files"
 	KeyEventBacktoPreviousPage   = "back-to-previous-page"
+	KeyEventWhatsInstalled       = "show-installed-sdks"
 )
 
 /*
@@ -75,6 +77,41 @@ func (v *SDKSearcher) Show() (nextEvent, selectedItem string) {
 	return
 }
 
+func (v *SDKSearcher) ShowInstalledOnly() (nextEvent, selectedItem string) {
+	ll := table.NewList()
+	ll.SetListType(table.SDKList)
+	v.RegisterKeyEvents(ll)
+
+	_, w, _ := terminal.GetTerminalSize()
+	if w > 30 {
+		w -= 30
+	} else {
+		w = 120
+	}
+	ll.SetHeader([]table.Column{
+		{Title: "installed sdk", Width: 20},
+		{Title: "homepage", Width: w},
+	})
+	rows := download.GetSDKSortedRows(v.SdkList)
+
+	installedRows := []table.Row{}
+	for _, r := range rows {
+		if install.IsSDKInstalledByVMR(r[0]) {
+			installedRows = append(installedRows, r)
+		}
+	}
+	if len(installedRows) == 0 {
+		gprint.PrintWarning("no installed sdk found!")
+		return
+	}
+	ll.SetRows(installedRows)
+	ll.Run()
+
+	selectedItem = ll.GetSelected()
+	nextEvent = ll.NextEvent
+	return
+}
+
 func (v *SDKSearcher) RegisterKeyEvents(ll *table.List) {
 	// Open homepage.
 	ll.SetKeyEventForTable("o", table.KeyEvent{
@@ -121,4 +158,11 @@ func (v *SDKSearcher) RegisterKeyEvents(ll *table.List) {
 		},
 		HelpInfo: "clear all local cached files of the selected sdk",
 	})
+	ll.SetKeyEventForTable("w", table.KeyEvent{
+		Event: func(key string, l *table.List) tea.Cmd {
+			l.NextEvent = KeyEventWhatsInstalled
+			return tea.Quit
+		},
+		HelpInfo: "show the list of sdks installed by VMR on your system",
+	})
 }