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package gui
import (
"fmt"
"strings"
"github.com/jesseduffield/lazygit/pkg/commands/models"
"github.com/jesseduffield/lazygit/pkg/gui/presentation"
"github.com/sirupsen/logrus"
)
const EXPANDED_ARROW = "▼"
const COLLAPSED_ARROW = "►"
type FileChangeManager struct {
Files []*models.File
Tree *models.FileChangeNode
ShowTree bool
Log *logrus.Entry
CollapsedPaths map[string]bool
}
func NewFileChangeManager(files []*models.File, log *logrus.Entry, showTree bool) *FileChangeManager {
return &FileChangeManager{
Files: files,
Log: log,
ShowTree: showTree,
CollapsedPaths: map[string]bool{},
}
}
func (m *FileChangeManager) GetItemAtIndex(index int) *models.FileChangeNode {
// need to traverse the three depth first until we get to the index.
return m.Tree.GetNodeAtIndex(index+1, m.CollapsedPaths) // ignoring root
}
func (m *FileChangeManager) GetIndexForPath(path string) (int, bool) {
index, found := m.Tree.GetIndexForPath(path, m.CollapsedPaths)
return index - 1, found
}
func (m *FileChangeManager) GetAllItems() []*models.FileChangeNode {
if m.Tree == nil {
return nil
}
return m.Tree.Flatten(m.CollapsedPaths)[1:] // ignoring root
}
func (m *FileChangeManager) GetItemsLength() int {
return m.Tree.Size(m.CollapsedPaths) - 1 // ignoring root
}
func (m *FileChangeManager) GetAllFiles() []*models.File {
return m.Files
}
func (m *FileChangeManager) SetFiles(files []*models.File) {
m.Files = files
m.SetTree()
}
func (m *FileChangeManager) SetTree() {
if m.ShowTree {
m.Tree = GetTreeFromFiles(m.Files)
} else {
m.Tree = GetFlatTreeFromFiles(m.Files)
}
}
func (m *FileChangeManager) Render(diffName string, submoduleConfigs []*models.SubmoduleConfig) []string {
return m.renderAux(m.Tree, "", -1, diffName, submoduleConfigs)
}
const INNER_ITEM = "├─ "
const LAST_ITEM = "└─ "
const NESTED = "│ "
const NOTHING = " "
func (m *FileChangeManager) IsCollapsed(s *models.FileChangeNode) bool {
return m.CollapsedPaths[s.GetPath()]
}
func (m *FileChangeManager) ToggleCollapsed(s *models.FileChangeNode) {
m.CollapsedPaths[s.GetPath()] = !m.CollapsedPaths[s.GetPath()]
}
func (m *FileChangeManager) renderAux(s *models.FileChangeNode, prefix string, depth int, diffName string, submoduleConfigs []*models.SubmoduleConfig) []string {
isRoot := depth == -1
if s == nil {
return []string{}
}
getLine := func() string {
return prefix + presentation.GetFileLine(s.GetHasUnstagedChanges(), s.GetHasStagedChanges(), s.NameAtDepth(depth), diffName, submoduleConfigs, s.File)
}
if s.IsLeaf() {
if isRoot {
return []string{}
}
return []string{getLine()}
}
if m.IsCollapsed(s) {
return []string{fmt.Sprintf("%s %s", getLine(), COLLAPSED_ARROW)}
}
arr := []string{}
if !isRoot {
arr = append(arr, fmt.Sprintf("%s %s", getLine(), EXPANDED_ARROW))
}
newPrefix := prefix
if strings.HasSuffix(prefix, LAST_ITEM) {
newPrefix = strings.TrimSuffix(prefix, LAST_ITEM) + NOTHING
} else if strings.HasSuffix(prefix, INNER_ITEM) {
newPrefix = strings.TrimSuffix(prefix, INNER_ITEM) + NESTED
}
for i, child := range s.Children {
isLast := i == len(s.Children)-1
var childPrefix string
if isRoot {
childPrefix = newPrefix
} else if isLast {
childPrefix = newPrefix + LAST_ITEM
} else {
childPrefix = newPrefix + INNER_ITEM
}
arr = append(arr, m.renderAux(child, childPrefix, depth+1+s.CompressionLevel, diffName, submoduleConfigs)...)
}
return arr
}
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