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https://github.com/rclone/rclone.git
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ncdu: remove option ('d' key)
delete files by pressing 'd' in the ncdu listing GUI Improvements: Boxes now have a border around them Boxes can ask questions and allow the selection of options. The selected option will be given to the UI.boxMenuHandler function. Fixes #2571
This commit is contained in:
parent
9486df0226
commit
04a0da1f92
231
cmd/ncdu/ncdu.go
231
cmd/ncdu/ncdu.go
@ -13,6 +13,7 @@ import (
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"github.com/ncw/rclone/cmd"
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"github.com/ncw/rclone/cmd/ncdu/scan"
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"github.com/ncw/rclone/fs"
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"github.com/ncw/rclone/fs/operations"
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termbox "github.com/nsf/termbox-go"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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@ -42,8 +43,11 @@ Here are the keys - press '?' to toggle the help on and off
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` + strings.Join(helpText[1:], "\n ") + `
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This an homage to the [ncdu tool](https://dev.yorhel.nl/ncdu) but for
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rclone remotes. It is missing lots of features at the moment, most
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importantly deleting files, but is useful as it stands.
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rclone remotes. It is missing lots of features at the moment
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but is useful as it stands.
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Note that it might take some time to delete big files/folders. The
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UI won't respond in the meantime since the deletion is done synchronously.
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`,
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Run: func(command *cobra.Command, args []string) {
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cmd.CheckArgs(1, 1, command, args)
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@ -63,6 +67,7 @@ var helpText = []string{
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" c toggle counts",
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" g toggle graph",
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" n,s,C sort by name,size,count",
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" d delete file/directory",
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" ^L refresh screen",
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" ? to toggle help on and off",
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" q/ESC/c-C to quit",
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@ -70,24 +75,27 @@ var helpText = []string{
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// UI contains the state of the user interface
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type UI struct {
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f fs.Fs // fs being displayed
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fsName string // human name of Fs
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root *scan.Dir // root directory
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d *scan.Dir // current directory being displayed
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path string // path of current directory
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showBox bool // whether to show a box
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boxText []string // text to show in box
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entries fs.DirEntries // entries of current directory
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sortPerm []int // order to display entries in after sorting
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invSortPerm []int // inverse order
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dirListHeight int // height of listing
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listing bool // whether listing is in progress
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showGraph bool // toggle showing graph
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showCounts bool // toggle showing counts
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sortByName int8 // +1 for normal, 0 for off, -1 for reverse
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sortBySize int8
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sortByCount int8
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dirPosMap map[string]dirPos // store for directory positions
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f fs.Fs // fs being displayed
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fsName string // human name of Fs
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root *scan.Dir // root directory
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d *scan.Dir // current directory being displayed
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path string // path of current directory
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showBox bool // whether to show a box
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boxText []string // text to show in box
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boxMenu []string // box menu options
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boxMenuButton int
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boxMenuHandler func(fs fs.Fs, path string, option int) (string, error)
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entries fs.DirEntries // entries of current directory
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sortPerm []int // order to display entries in after sorting
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invSortPerm []int // inverse order
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dirListHeight int // height of listing
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listing bool // whether listing is in progress
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showGraph bool // toggle showing graph
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showCounts bool // toggle showing counts
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sortByName int8 // +1 for normal, 0 for off, -1 for reverse
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sortBySize int8
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sortByCount int8
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dirPosMap map[string]dirPos // store for directory positions
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}
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// Where we have got to in the directory listing
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@ -130,6 +138,54 @@ func Linef(x, y, xmax int, fg, bg termbox.Attribute, spacer rune, format string,
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Line(x, y, xmax, fg, bg, spacer, s)
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}
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// LineOptions Print line of selectable options
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func LineOptions(x, y, xmax int, fg, bg termbox.Attribute, options []string, selected int) {
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defaultBg := bg
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defaultFg := fg
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// Print left+right whitespace to center the options
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xoffset := ((xmax - x) - lineOptionLength(options)) / 2
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for j := x; j < x+xoffset; j++ {
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termbox.SetCell(j, y, ' ', fg, bg)
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}
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for j := xmax - xoffset; j < xmax; j++ {
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termbox.SetCell(j, y, ' ', fg, bg)
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}
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x += xoffset
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for i, o := range options {
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termbox.SetCell(x, y, ' ', fg, bg)
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if i == selected {
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bg = termbox.ColorBlack
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fg = termbox.ColorWhite
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}
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termbox.SetCell(x+1, y, '<', fg, bg)
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x += 2
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// print option text
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for _, c := range o {
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termbox.SetCell(x, y, c, fg, bg)
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x++
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}
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termbox.SetCell(x, y, '>', fg, bg)
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bg = defaultBg
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fg = defaultFg
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termbox.SetCell(x+1, y, ' ', fg, bg)
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x += 2
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}
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}
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func lineOptionLength(o []string) int {
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count := 0
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for _, i := range o {
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count += len(i)
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}
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return count + 4*len(o) // spacer and arrows <entry>
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}
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// Box the u.boxText onto the screen
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func (u *UI) Box() {
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w, h := termbox.Size()
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@ -147,6 +203,15 @@ func (u *UI) Box() {
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x := (w - boxWidth) / 2
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y := (h - boxHeight) / 2
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xmax := x + boxWidth
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if len(u.boxMenu) != 0 {
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count := lineOptionLength(u.boxMenu)
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if x+boxWidth > x+count {
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xmax = x + boxWidth
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} else {
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xmax = x + count
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}
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}
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ymax := y + len(u.boxText)
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// draw text
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fg, bg := termbox.ColorRed, termbox.ColorWhite
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@ -155,7 +220,43 @@ func (u *UI) Box() {
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fg = termbox.ColorBlack
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}
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// FIXME draw a box around
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if len(u.boxMenu) != 0 {
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ymax++
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LineOptions(x, ymax-1, xmax, fg, bg, u.boxMenu, u.boxMenuButton)
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}
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// draw top border
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for i := y; i < ymax; i++ {
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termbox.SetCell(x-1, i, '│', fg, bg)
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termbox.SetCell(xmax, i, '│', fg, bg)
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}
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for j := x; j < xmax; j++ {
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termbox.SetCell(j, y-1, '─', fg, bg)
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termbox.SetCell(j, ymax, '─', fg, bg)
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}
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termbox.SetCell(x-1, y-1, '┌', fg, bg)
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termbox.SetCell(xmax, y-1, '┐', fg, bg)
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termbox.SetCell(x-1, ymax, '└', fg, bg)
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termbox.SetCell(xmax, ymax, '┘', fg, bg)
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}
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func (u *UI) moveBox(to int) {
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if len(u.boxMenu) == 0 {
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return
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}
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if to > 0 { // move right
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u.boxMenuButton++
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} else { // move left
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u.boxMenuButton--
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}
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if u.boxMenuButton >= len(u.boxMenu) {
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u.boxMenuButton = len(u.boxMenu) - 1
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} else if u.boxMenuButton < 0 {
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u.boxMenuButton = 0
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}
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}
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// find the biggest entry in the current listing
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@ -314,6 +415,57 @@ func (u *UI) move(d int) {
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u.dirPosMap[u.path] = dirPos
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}
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func (u *UI) removeEntry(pos int) {
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u.d.Remove(pos)
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u.setCurrentDir(u.d)
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}
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// delete the entry at the current position
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func (u *UI) delete() {
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dirPos := u.sortPerm[u.dirPosMap[u.path].entry]
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entry := u.entries[dirPos]
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file := false
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d, _ := u.d.GetDir(dirPos)
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if d == nil {
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file = true
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}
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u.boxMenu = []string{"cancel", "confirm"}
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if file {
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u.boxMenuHandler = func(f fs.Fs, p string, o int) (string, error) {
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if o != 1 {
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return "Aborted!", nil
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}
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err := f.Rmdir(entry.String())
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if err != nil {
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return "", err
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}
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u.removeEntry(dirPos)
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return "Successfully deleted file!", nil
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}
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u.popupBox([]string{
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"Delete this file?",
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u.fsName + entry.String()})
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} else {
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u.boxMenuHandler = func(f fs.Fs, p string, o int) (string, error) {
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if o != 1 {
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return "Aborted!", nil
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}
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err := operations.Purge(f, entry.String())
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if err != nil {
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return "", err
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}
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u.removeEntry(dirPos)
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return "Successfully purged folder!", nil
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}
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u.popupBox([]string{
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"Purge this directory?",
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"ALL files in it will be deleted",
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u.fsName + entry.String()})
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}
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}
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// Sort by the configured sort method
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type ncduSort struct {
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sortPerm []int
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@ -405,6 +557,25 @@ func (u *UI) enter() {
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u.setCurrentDir(d)
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}
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// handles a box option that was selected
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func (u *UI) handleBoxOption() {
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msg, err := u.boxMenuHandler(u.f, u.path, u.boxMenuButton)
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// reset
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u.boxMenuButton = 0
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u.boxMenu = []string{}
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u.boxMenuHandler = nil
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if err != nil {
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u.popupBox([]string{
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"error:",
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err.Error(),
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})
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return
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}
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u.popupBox([]string{"Finished:", msg})
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}
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// up goes up to the parent directory
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func (u *UI) up() {
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if u.d == nil {
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@ -524,8 +695,22 @@ outer:
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case termbox.KeyPgup, '=', '+':
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u.move(-u.dirListHeight)
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case termbox.KeyArrowLeft, 'h':
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if u.showBox {
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u.moveBox(-1)
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break
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}
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u.up()
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case termbox.KeyArrowRight, 'l', termbox.KeyEnter:
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case termbox.KeyEnter:
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if len(u.boxMenu) > 0 {
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u.handleBoxOption()
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break
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}
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u.enter()
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case termbox.KeyArrowRight, 'l':
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if u.showBox {
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u.moveBox(1)
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break
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}
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u.enter()
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case 'c':
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u.showCounts = !u.showCounts
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@ -537,6 +722,8 @@ outer:
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u.toggleSort(&u.sortBySize)
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case 'C':
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u.toggleSort(&u.sortByCount)
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case 'd':
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u.delete()
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case '?':
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u.togglePopupBox(helpText)
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