2022-01-21 15:13:51 +02:00
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package filetree
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import (
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"fmt"
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"sync"
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"github.com/jesseduffield/lazygit/pkg/commands/models"
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"github.com/sirupsen/logrus"
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)
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type FileTreeDisplayFilter int
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const (
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DisplayAll FileTreeDisplayFilter = iota
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DisplayStaged
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DisplayUnstaged
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// this shows files with merge conflicts
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DisplayConflicted
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)
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type FileTreeViewModel struct {
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files []*models.File
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tree *FileNode
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showTree bool
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log *logrus.Entry
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filter FileTreeDisplayFilter
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collapsedPaths CollapsedPaths
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sync.RWMutex
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}
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func NewFileTreeViewModel(files []*models.File, log *logrus.Entry, showTree bool) *FileTreeViewModel {
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viewModel := &FileTreeViewModel{
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log: log,
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showTree: showTree,
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filter: DisplayAll,
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collapsedPaths: CollapsedPaths{},
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RWMutex: sync.RWMutex{},
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}
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viewModel.SetFiles(files)
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return viewModel
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}
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func (self *FileTreeViewModel) InTreeMode() bool {
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return self.showTree
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}
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func (self *FileTreeViewModel) ExpandToPath(path string) {
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self.collapsedPaths.ExpandToPath(path)
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}
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func (self *FileTreeViewModel) GetFilesForDisplay() []*models.File {
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files := self.files
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switch self.filter {
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case DisplayAll:
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return files
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case DisplayStaged:
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return self.FilterFiles(func(file *models.File) bool { return file.HasStagedChanges })
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case DisplayUnstaged:
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return self.FilterFiles(func(file *models.File) bool { return file.HasUnstagedChanges })
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case DisplayConflicted:
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return self.FilterFiles(func(file *models.File) bool { return file.HasMergeConflicts })
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default:
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panic(fmt.Sprintf("Unexpected files display filter: %d", self.filter))
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}
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}
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func (self *FileTreeViewModel) FilterFiles(test func(*models.File) bool) []*models.File {
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result := make([]*models.File, 0)
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for _, file := range self.files {
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if test(file) {
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result = append(result, file)
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}
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}
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return result
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}
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func (self *FileTreeViewModel) SetFilter(filter FileTreeDisplayFilter) {
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self.filter = filter
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self.SetTree()
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}
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func (self *FileTreeViewModel) ToggleShowTree() {
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self.showTree = !self.showTree
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self.SetTree()
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}
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func (self *FileTreeViewModel) GetItemAtIndex(index int) *FileNode {
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// need to traverse the three depth first until we get to the index.
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return self.tree.GetNodeAtIndex(index+1, self.collapsedPaths) // ignoring root
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}
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func (self *FileTreeViewModel) GetFile(path string) *models.File {
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for _, file := range self.files {
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if file.Name == path {
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return file
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}
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}
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return nil
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}
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func (self *FileTreeViewModel) GetIndexForPath(path string) (int, bool) {
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index, found := self.tree.GetIndexForPath(path, self.collapsedPaths)
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return index - 1, found
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}
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func (self *FileTreeViewModel) GetAllItems() []*FileNode {
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if self.tree == nil {
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return nil
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}
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return self.tree.Flatten(self.collapsedPaths)[1:] // ignoring root
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}
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func (self *FileTreeViewModel) GetItemsLength() int {
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return self.tree.Size(self.collapsedPaths) - 1 // ignoring root
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}
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func (self *FileTreeViewModel) GetAllFiles() []*models.File {
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return self.files
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}
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func (self *FileTreeViewModel) SetFiles(files []*models.File) {
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self.files = files
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self.SetTree()
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}
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func (self *FileTreeViewModel) SetTree() {
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filesForDisplay := self.GetFilesForDisplay()
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if self.showTree {
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self.tree = BuildTreeFromFiles(filesForDisplay)
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} else {
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self.tree = BuildFlatTreeFromFiles(filesForDisplay)
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}
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}
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func (self *FileTreeViewModel) IsCollapsed(path string) bool {
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return self.collapsedPaths.IsCollapsed(path)
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}
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func (self *FileTreeViewModel) ToggleCollapsed(path string) {
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self.collapsedPaths.ToggleCollapsed(path)
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}
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func (self *FileTreeViewModel) Tree() INode {
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return self.tree
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}
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func (self *FileTreeViewModel) CollapsedPaths() CollapsedPaths {
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return self.collapsedPaths
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}
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func (self *FileTreeViewModel) GetFilter() FileTreeDisplayFilter {
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return self.filter
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}
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