228170d610
Issues #11-13: WithAppName for variant binaries, NewPassthrough builder for flag.FlagSet commands, RegisterCommands test coverage with resetGlobals helper. Fix pre-existing daemon_test.go break. Issue #14: Rich Table with box-drawing borders (Normal, Rounded, Heavy, Double), per-column CellStyleFn, WithMaxWidth responsive truncation. Tree renderer with box-drawing connectors and styled nodes. Parallel TaskTracker with braille spinners, thread-safe concurrent updates, and non-TTY fallback. Streaming text renderer with word-wrap and channel pattern support. Issue #15: Frame live compositional AppShell using HLCRF regions with Model interface, Navigate/Back content swapping, alt-screen live mode, graceful non-TTY fallback. Built-in region components: StatusLine, KeyHints, Breadcrumb. Zero new dependencies — pure ANSI + x/term. 68 tests, all passing with -race. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
98 lines
2.3 KiB
Go
98 lines
2.3 KiB
Go
package cli
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import (
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"fmt"
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"strings"
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)
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// TreeNode represents a node in a displayable tree structure.
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// Use NewTree to create a root, then Add children.
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//
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// tree := cli.NewTree("core-php")
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// tree.Add("core-tenant").Add("core-bio")
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// tree.Add("core-admin")
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// tree.Add("core-api")
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// fmt.Print(tree)
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// // core-php
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// // ├── core-tenant
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// // │ └── core-bio
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// // ├── core-admin
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// // └── core-api
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type TreeNode struct {
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label string
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style *AnsiStyle
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children []*TreeNode
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}
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// NewTree creates a new tree with the given root label.
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func NewTree(label string) *TreeNode {
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return &TreeNode{label: label}
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}
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// Add appends a child node and returns the child for chaining.
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func (n *TreeNode) Add(label string) *TreeNode {
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child := &TreeNode{label: label}
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n.children = append(n.children, child)
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return child
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}
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// AddStyled appends a styled child node and returns the child for chaining.
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func (n *TreeNode) AddStyled(label string, style *AnsiStyle) *TreeNode {
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child := &TreeNode{label: label, style: style}
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n.children = append(n.children, child)
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return child
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}
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// AddTree appends an existing tree as a child and returns the parent for chaining.
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func (n *TreeNode) AddTree(child *TreeNode) *TreeNode {
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n.children = append(n.children, child)
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return n
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}
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// WithStyle sets the style on this node and returns it for chaining.
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func (n *TreeNode) WithStyle(style *AnsiStyle) *TreeNode {
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n.style = style
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return n
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}
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// String renders the tree with box-drawing characters.
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// Implements fmt.Stringer.
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func (n *TreeNode) String() string {
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var sb strings.Builder
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sb.WriteString(n.renderLabel())
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sb.WriteByte('\n')
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n.writeChildren(&sb, "")
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return sb.String()
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}
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// Render prints the tree to stdout.
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func (n *TreeNode) Render() {
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fmt.Print(n.String())
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}
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func (n *TreeNode) renderLabel() string {
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if n.style != nil {
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return n.style.Render(n.label)
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}
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return n.label
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}
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func (n *TreeNode) writeChildren(sb *strings.Builder, prefix string) {
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for i, child := range n.children {
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last := i == len(n.children)-1
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connector := "├── "
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next := "│ "
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if last {
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connector = "└── "
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next = " "
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}
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sb.WriteString(prefix)
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sb.WriteString(connector)
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sb.WriteString(child.renderLabel())
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sb.WriteByte('\n')
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child.writeChildren(sb, prefix+next)
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}
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}
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