UPDATE feature and changes

Author: nogo

CHANGELOG.md

@@ -1,38 +1,43 @@
 # Changelog
 
-## 2026-01-29
-
-### Foundation
-- Set up Go project structure with domain types (Commit, Branch, Repository)
-- Implemented git layer using go-git for loading commits and branches
-- Created TUI shell with bubbletea and Elm architecture
-
-### Commit List
-- Added scrollable commit list with virtual viewport
-- Implemented graph rendering with branch badges and 6-color palette
-- Added Vim-style navigation (j/k, g/G) and mouse support
-
-### Views & Overlays
-- Added commit detail overlay showing full hash, author, date, message, parents, refs
-- Added branch filter modal with checkbox list and reachability-based filtering
-
-### Live Updates
-- Implemented file watcher on `.git/HEAD` and refs directories
-- Added 100ms debounce for rapid changes
+## [0.3.0] - 2026-01-30
+
+### Added
+- **Author filter** - Filter commits by author (`a` key)
+- **Author highlight** - Dim non-matching commits to focus on one author (`A` key)
+- **Search** - Find commits by message or hash (`/` key, `n`/`N` to navigate)
+- **Date histogram** - Timeline showing commit density with time range filtering (`t` to toggle, `Tab` to focus)
+- **Inline commit expansion** - View commit details and file list without leaving the graph (`Enter` to expand)
+- **Diff view** - View file changes with syntax highlighting (`Enter` on file)
+- Two-column layout for expanded view on wide terminals (>= 100 chars)
+
+### Changed
+- Commit details now shown inline (expanding between rows) instead of modal overlay
+- Graph remains visible when viewing commit details
+- Keyboard and mouse scrolling disabled when commit is expanded
+
+## [0.2.0] - 2026-01-29
+
+### Added
+- Path argument support (`gitree /path/to/repo`)
+- Column headers with proper alignment
+- Multi-lane DAG visualization with lane assignment algorithm
+- Topological sort for correct commit ordering
+
+### Fixed
+- UTF-8 rendering issues
+- Lane assignment for rebased/cherry-picked commits
+- Merge branch label positioning
+
+## [0.1.0] - 2026-01-29
+
+### Added
+- Initial release
+- Visual commit graph with branch badges and 6-color palette
+- Scrollable commit list with virtual viewport
+- Vim-style navigation (j/k, g/G) and mouse support
+- Commit detail overlay
+- Branch filter modal with reachability-based filtering
+- Live repository watching with fsnotify
+- 100ms debounce for rapid changes
 - Visual indicator in footer (● watching / ○ not watching)
-
-### Path Argument & UI Polish
-- Added support for `gitree [path]` to open any repository
-- Added column headers with proper alignment
-- Fixed UTF-8 rendering issues
-
-### Graph Improvements
-- Replaced simple graph with multi-lane DAG visualization
-- Added lane assignment algorithm for proper branch layout
-- Implemented topological sort for correct commit ordering
-- Fixed lane assignment for rebased/cherry-picked commits
-- Improved merge branch label positioning
-
-### Documentation
-- Added README with installation, usage, and key bindings
-- Added this changelog

README.md

@@ -1,17 +1,20 @@
 # gitree
 
-A terminal-based git history visualization tool with live updates.
+A terminal-based git history visualization tool with live updates and time-based navigation.
 
 ![Go](https://img.shields.io/badge/Go-1.24+-00ADD8?logo=go&logoColor=white)
 
 ## Features
 
-- **Visual commit graph** - See branch relationships at a glance with multi-lane DAG visualization
+- **Visual commit graph** - Multi-lane DAG visualization showing branch relationships
 - **Live updates** - Graph refreshes automatically when repository changes
-- **Branch filtering** - Filter commits by branch with reachability-based filtering
-- **Commit details** - View full commit info in an overlay panel
+- **Inline commit details** - Expand commits to see files and diffs without leaving the graph
+- **Filtering** - Filter by branch or author
+- **Author highlight** - Dim other commits to focus on one contributor
+- **Search** - Find commits by message or hash
+- **Date histogram** - Timeline showing commit density, filter by time range
+- **Diff view** - View file changes with syntax highlighting
 - **Vim-style navigation** - Keyboard-driven with mouse support
-- **Clean design** - Minimal chrome, maximum information density
 
 ## Installation
 
@@ -21,7 +24,7 @@ Download the latest release from the [releases page](https://github.com/nogo/git
 
 ```bash
 # Example for macOS Apple Silicon
-tar -xzf gitree_0.2.0_darwin_arm64.tar.gz
+tar -xzf gitree_0.3.0_darwin_arm64.tar.gz
 sudo mv gitree /usr/local/bin/
 ```
 
@@ -58,20 +61,53 @@ gitree ~/projects/myrepo
 
 ## Key Bindings
 
+### Navigation
+
 | Key | Action |
 |-----|--------|
 | `j` / `k`, `↑` / `↓` | Navigate up/down |
 | `Ctrl+d` / `Ctrl+u` | Page down/up |
-| `PgDn` / `PgUp` | Page down/up |
 | `g` / `G` | Jump to top/bottom |
-| `Home` / `End` | Jump to top/bottom |
-| `Enter` | Open commit detail |
-| `Esc` | Close overlay |
-| `b` | Open branch filter |
-| `c` | Clear filter |
-| `q`, `Ctrl+c` | Quit |
-| Mouse wheel | Scroll |
-| Mouse click | Select commit |
+| `Enter` | Expand commit (show files) |
+| `Esc` | Close/collapse |
+| `q` | Quit |
+
+### Filtering & Search
+
+| Key | Action |
+|-----|--------|
+| `b` | Branch filter |
+| `a` | Author filter |
+| `A` | Author highlight (dims others) |
+| `/` | Search commits |
+| `n` / `N` | Next/previous match |
+| `c` | Clear all filters |
+
+### Timeline
+
+| Key | Action |
+|-----|--------|
+| `t` | Toggle histogram |
+| `Tab` | Focus histogram |
+| `h` / `l` | Move selection |
+| `[` / `]` | Set range start/end |
+| `Enter` | Apply time filter |
+
+### When Expanded
+
+| Key | Action |
+|-----|--------|
+| `j` / `k` | Navigate files |
+| `Enter` | Open diff view |
+| `Esc` | Collapse |
+
+### Diff View
+
+| Key | Action |
+|-----|--------|
+| `j` / `k` | Scroll diff |
+| `h` / `l` | Previous/next file |
+| `Esc` / `q` | Close |
 
 ## Layout
 
@@ -80,11 +116,19 @@ gitree                                                    repo-name
 ───────────────────────────────────────────────────────────────────
      Message                              Author       Date   Hash
 ───────────────────────────────────────────────────────────────────
-│ ○  [main] Add feature...               Danilo K  12m ago  6144c
-●─┘  Merge branch 'feature'              Alice     1h ago   a1b2c
-│    Fix authentication bug              Bob       2h ago   b2c3d
+│ ○  [main] Add feature...               Alice     12m ago  6144c
+│    ╔═══════════════════════╤═══════════════════════════════════╗
+│    ║ Commit: 6144c3d...    │ Files (3)  +42 -18                ║
+│    ║ Author: Alice <a@...> │ > M src/app.go          +30 -10  ║
+│    ║ Date:   Jan 30, 2026  │   A src/new.go          +12 -0   ║
+│    ╚═══ [j/k] file  [Enter] diff  [Esc] close ═════════════════╝
+●─┘  Merge branch 'feature'              Bob        1h ago  a1b2c
+│    Fix authentication bug              Carol      2h ago  b2c3d
+───────────────────────────────────────────────────────────────────
+                    ⣀⣀⣤⣤⣶⣶⣿⣿⣶⣶⣤⣤⣀⣀
+                   [━━━━━━━━━━]
 ───────────────────────────────────────────────────────────────────
-● watching   47/1284 commits   12 branches          [b]ranch [q]uit
+● watching   47/1284 commits   12 branches       [b]ranch [c]lear
 ```
 
 ## Requirements