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@ -1,15 +1,21 @@
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package gui
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import (
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"fmt"
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"strings"
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"github.com/go-errors/errors"
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"github.com/jesseduffield/gocui"
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"github.com/jesseduffield/lazydocker/pkg/commands"
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"github.com/jesseduffield/lazydocker/pkg/utils"
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"github.com/samber/lo"
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)
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type ListPanel[T comparable] struct {
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toColumns func(T) []string
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selectedIdx int
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list FilteredList[T]
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list *FilteredList[T]
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view *gocui.View
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}
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@ -42,4 +48,224 @@ type SideListPanel[T comparable] struct {
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ListPanel[T]
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contextIdx int
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noItemsMessge string
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gui IGui
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contexts []ContextConfig[T]
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// returns strings that can be filtered on
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getSearchStrings func(item T) []string
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sort func(a, b T) bool
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}
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type ContextConfig[T any] struct {
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key string
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title string
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render func(item T) error
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}
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type IGui interface {
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HandleClick(v *gocui.View, itemCount int, selectedLine *int, handleSelect func() error) error
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RenderStringMain(message string) error
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FocusY(selectedLine int, itemCount int, view *gocui.View)
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ShouldRefresh(key string) bool
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GetMainView() *gocui.View
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PopupPanelFocused() bool
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// TODO: replace with IsCurrentView() bool
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CurrentView() *gocui.View
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FilterString(view *gocui.View) string
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IgnoreStrings() []string
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Update(func() error)
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}
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func (gui *Gui) intoInterface() IGui {
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return gui
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}
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func (gui *Gui) getImagePanel() *SideListPanel[*commands.Image] {
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noneLabel := "<none>"
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return &SideListPanel[*commands.Image]{
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contextKeyPrefix: "images",
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ListPanel: ListPanel[*commands.Image]{
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toColumns: func(image *commands.Image) []string {
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return []string{
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image.Name,
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image.Tag,
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utils.FormatDecimalBytes(int(image.Image.Size)),
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}
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},
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list: NewFilteredList[*commands.Image](),
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view: gui.Views.Images,
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},
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contextIdx: -1, // TODO: see if this should be 0
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noItemsMessge: gui.Tr.NoImages,
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gui: gui.intoInterface(),
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contexts: []ContextConfig[*commands.Image]{
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{
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key: "config",
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title: gui.Tr.ConfigTitle,
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render: func(image *commands.Image) error {
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return gui.renderImageConfig(image)
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},
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},
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},
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getSearchStrings: func(image *commands.Image) []string {
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return []string{image.Name, image.Tag}
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},
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sort: func(a *commands.Image, b *commands.Image) bool {
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if a.Name == noneLabel && b.Name != noneLabel {
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return false
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}
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if a.Name != noneLabel && b.Name == noneLabel {
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return true
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}
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return a.Name < b.Name
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},
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}
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}
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func (self *SideListPanel[T]) OnClick() error {
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itemCount := self.list.Len()
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handleSelect := self.HandleSelect
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selectedLine := &self.selectedIdx
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return self.gui.HandleClick(self.view, itemCount, selectedLine, handleSelect)
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}
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func (self *SideListPanel[T]) HandleSelect() error {
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item, err := self.GetSelectedItem()
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if err != nil {
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if err.Error() != self.noItemsMessge {
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return err
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}
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return self.gui.RenderStringMain(self.noItemsMessge)
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}
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self.gui.FocusY(self.selectedIdx, self.list.Len(), self.view)
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key := self.contextKeyPrefix + "-" + self.contexts[self.contextIdx].key
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if !self.gui.ShouldRefresh(key) {
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return nil
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}
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mainView := self.gui.GetMainView()
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mainView.Tabs = self.GetContextTitles()
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mainView.TabIndex = self.contextIdx
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// now I have an item. What do I do with it?
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return self.contexts[self.contextIdx].render(item)
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}
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func (self *SideListPanel[T]) GetContextTitles() []string {
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return lo.Map(self.contexts, func(context ContextConfig[T], _ int) string {
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return context.title
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})
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}
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func (self *SideListPanel[T]) GetSelectedItem() (T, error) {
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var zero T
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if self.selectedIdx == -1 {
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return zero, errors.New(self.noItemsMessge)
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}
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item, ok := self.list.TryGet(self.selectedIdx)
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if !ok {
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// could probably have a better error here
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return zero, errors.New(self.noItemsMessge)
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}
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return item, nil
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}
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func (self *SideListPanel[T]) OnNextLine() error {
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if self.ignoreKeypress() {
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return nil
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}
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self.SelectNextLine()
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return self.HandleSelect()
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}
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func (self *SideListPanel[T]) OnPrevLine() error {
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if self.ignoreKeypress() {
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return nil
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}
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self.SelectPrevLine()
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return self.HandleSelect()
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}
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func (self *SideListPanel[T]) ignoreKeypress() bool {
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return self.gui.PopupPanelFocused() || self.gui.CurrentView() != self.view
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}
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func (self *SideListPanel[T]) OnNextContext() error {
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self.contextIdx = (self.contextIdx + 1) % len(self.contexts)
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return self.HandleSelect()
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}
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func (self *SideListPanel[T]) OnPrevContext() error {
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self.contextIdx = (self.contextIdx - 1 + len(self.contexts)) % len(self.contexts)
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return self.HandleSelect()
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}
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func (self *SideListPanel[T]) RerenderList() error {
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filterString := self.gui.FilterString(self.view)
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self.list.Filter(func(item T, index int) bool {
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if lo.SomeBy(self.gui.IgnoreStrings(), func(ignore string) bool {
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return lo.SomeBy(self.getSearchStrings(item), func(searchString string) bool {
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return strings.Contains(searchString, ignore)
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})
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}) {
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return false
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}
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if filterString != "" {
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return lo.SomeBy(self.getSearchStrings(item), func(searchString string) bool {
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return strings.Contains(searchString, filterString)
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})
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}
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return true
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})
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self.list.Sort(self.sort)
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// TODO: use clamp?
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if self.list.Len() > 0 && self.selectedIdx == -1 {
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self.selectedIdx = 0
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}
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if self.list.Len()-1 < self.selectedIdx {
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self.selectedIdx = self.list.Len() - 1
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}
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self.gui.Update(func() error {
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self.view.Clear()
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isFocused := self.gui.CurrentView() == self.view
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list, err := utils.RenderList(self.list.GetItems(), utils.IsFocused(isFocused))
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if err != nil {
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return err
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}
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fmt.Fprint(self.view, list)
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if self.view == self.gui.CurrentView() {
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return self.HandleSelect()
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}
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return nil
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})
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return nil
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}
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Jesse Duffield
2 years ago