Add shift+arrows for collapse/expand all

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

docs/decisions.md

@@ -53,15 +53,17 @@ everyone else's checkout.
 
 **Context.** Only the first level is shown by default, so nested problems
 would be invisible.
-**Decision.** Collapsed parents show `·k` (issues in all descendants), colored
-by the worst one. Problems in a child do **not** mark the parent itself as
-`changed`.
+**Decision.** Collapsed parents show `·k` (issues in all descendants), one
+count per level: red for danger, then yellow for warn (amended: a single
+count in the worst color made 1 error + 1 warning look like 2 errors; the
+status column grew from 14 to 16 for the second count). Problems in a child
+do **not** mark the parent itself as `changed`.
 
 ## D8 — Collapsed by default, branch-first navigation
 
 **Decision.** Only the first level is visible. `→` expands and enters the
 first child, `←` collapses and goes to the parent, `space` toggles,
-`ctrl+→/←` expand/collapse all (see [ux-guide.md](ux-guide.md#navigation)).
+`shift+→/←`, `L`/`H` (or `ctrl+→/←`) expand/collapse all (see [ux-guide.md](ux-guide.md#navigation)).
 `←` on an expanded node collapses it in place, so a node can be closed
 without leaving it. Remembered expansion is kept on collapse, but reset by
 "collapse all".

docs/requirements.md

@@ -34,7 +34,8 @@ commit hashes. It doesn't answer the questions users actually have:
 - **F5** A collapsed submodule shows the number of its **direct** children,
   e.g. `[2]`.
 - **F6** A collapsed submodule shows the number of issues **hidden** in all
-  its descendants (`·2`), colored by the most severe hidden issue.
+  its descendants (`·1 ·2`), one count per level: errors in red, then
+  warnings in yellow.
 - **F7** Expansion state of descendants is remembered when a parent is
   collapsed and restored when it is expanded again (except after
   "collapse all", which resets it).

docs/state-model.md

@@ -72,7 +72,7 @@ truth for what counts as a problem.
 | `conflict` | Merge conflict in the worktree | Danger |
 | `missing` | Not initialized; directory missing | Warn |
 | `off pin` | Checkout differs from pin | Warn |
-| `changed` | Uncommitted changes; untracked files | Warn |
+| `changed` | Uncommitted changes; untracked files (worded "untracked repository" if all of them are git repositories) | Warn |
 
 Rules:
 
@@ -96,8 +96,10 @@ Rules:
 ### Hidden issues
 
 `Submodule.HiddenIssues()` counts the issues of **all** loaded descendants
-and returns the most severe level. A collapsed submodule shows this as `·k`
-in that level's color, so a danger can never hide inside a collapsed subtree.
+per level (`Hidden{Warn, Danger}`). A collapsed submodule shows them as `·k`
+per level, red first, then yellow, so a danger can never hide inside a
+collapsed subtree and a warning is never mistaken for one.
+A descendant whose load failed (`error`) counts as one danger.
 
 ## Resolving a pin to a ref
 

docs/ux-guide.md

@@ -26,7 +26,7 @@
      my_submodule_3       unpushed       origin/main    ↑1               │ Pinned    b7c8d9e Hotfix null pointer
  libs/                                                                   │ Checkout  b7c8d9e Hotfix null pointer
      logging                             origin/main    ↓3               │ Tip       6f5e4d3 Release 2.1.0
- ↑/↓ move • ←/→ collapse/expand • space toggle • u checkout pin • … • ? help • q quit
+ ↑↓/jk move • ←→/hl fold • ⇧←→/HL fold all • space toggle • ? help • q quit
 ```
 
 | Area | Height / width |
@@ -47,7 +47,7 @@ indent ▸ name [n]   status          ref             delta
 | indent | 2 per depth | |
 | toggle | 3 | `▸` collapsed, `▾` expanded, blank for leaves |
 | name | fits the widest visible name | name, `[n]` = direct children (collapsed only) |
-| status | 14 | issue word, `+n`, `·k` hidden issues; muted `in sync` without issues; spinner while loading |
+| status | 16 | issue word, `+n`, `·k` hidden issues per level (red, then yellow); muted `in sync` without issues; spinner while loading |
 | ref | widest ref, max 22 | resolved ref; muted short SHA if unresolved |
 | delta | 6 | `↑n`, `↓n`, `↑n↓m` |
 
@@ -91,7 +91,9 @@ Changes   5 files · 2M 1A 1D 1R · +37 −12
   meaning, the color only supports it (N4).
 - Letters and colors: `!` red bold, `M` yellow, `A` green, `D` red, `R`
   cyan, `?` muted. Line counts: green `+n`, red `−n`; `bin` for binary
-  files, `submodule` for a moved nested pin, nothing for untracked files.
+  files, `submodule` for a moved nested pin, `repository` for an untracked
+  directory that is a git repository itself (cloned, never added as a
+  submodule), nothing for other untracked files.
 - Order: kind (`!`, `M`, `A`, `D`, `R`, `?`), then changed lines, largest
   first, because the biggest edits are the ones people remember.
 - Budget: 10 files. Every kind that occurs gets at least one line, the
@@ -118,10 +120,12 @@ Changes   5 files · 2M 1A 1D 1R · +37 −12
 - Untracked directories are shown as one entry (`tmp/`).
 ### Header
 
-`path  branch ↑↓ · n submodules · <count> <issue>… · n pin staged · n loading · <fetch>`
+`path  branch ↑↓ · n submodules · n error · <count> <issue>… · n pin staged · n loading · <fetch>`
 
 Issue counts are ordered by severity (unpushed, conflict, missing, off pin,
-changed), each in its level color. Zero counts are omitted. A detached
+changed), each in its level color. Zero counts are omitted. `n loading`
+counts only submodules whose status is still being loaded; ones whose load
+failed are counted separately as `n error` (red, before the issue counts). A detached
 superproject shows `(detached)` as its branch.
 
 `<fetch>` on the right:
@@ -179,8 +183,8 @@ colors in components.
 | `space` | Toggle expand/collapse of the selected submodule |
 | `→` / `l` | Collapsed with children: expand and select the first child. Expanded: select the first child. Leaf: nothing |
 | `←` / `h` | Expanded: collapse it (stays selected). Otherwise: collapse the parent and select it. Top level: nothing |
-| `ctrl+→` | Expand all; then follow the first child from the selection down to a submodule without children |
-| `ctrl+←` | Collapse all (resets remembered expansion); select the top-level ancestor |
+| `L` / `shift+→` / `ctrl+→` | Expand all; then follow the first child from the selection down to a submodule without children |
+| `H` / `shift+←` / `ctrl+←` | Collapse all (resets remembered expansion); select the top-level ancestor |
 | `home` / `g`, `end` / `G` | First / last submodule |
 | `pgup`, `pgdn` | Move by one screen |
 | `?` | Toggle full help |
@@ -205,5 +209,6 @@ is selected, headers above it are shown too.
 ## Accessibility and terminals
 
 - `SUBMARINE_ASCII=1`: ASCII symbols (`^ v > v . *`) instead of Unicode.
-- Some terminals or multiplexers capture `ctrl+←/→`; letter aliases can be
-  added if needed.
+- Many setups capture `ctrl+←/→` (macOS Mission Control, some terminals and
+  multiplexers), so expand/collapse all also work as `shift+→/←` and as `L` / `H`, the
+  shifted vim keys for `→` / `←` (for terminals that don't report shift+arrows).

internal/submodule/git/provider.go

@@ -158,7 +158,7 @@ func status(ctx context.Context, in info) (*submodule.Status, error) {
 	}
 	pin := parseGitlink(out)
 	if pin == "" {
-		return nil, errors.New("no gitlink in the superproject index")
+		return nil, errors.New("listed in .gitmodules, but has no gitlink in the superproject index (stale entry?)")
 	}
 	out, _, err = try(ctx, in.superDir, "ls-tree", "HEAD", "--", in.relPath)
 	if err != nil {
@@ -387,6 +387,9 @@ func changes(ctx context.Context, dir string, entries []entry) (*submodule.Chang
 			c.Added += n.added
 			c.Removed += n.removed
 		}
+		if e.kind == submodule.ChangeUntracked && strings.HasSuffix(e.path, "/") {
+			f.Repo = initialized(filepath.Join(dir, filepath.FromSlash(e.path)))
+		}
 		if e.kind != submodule.ChangeRemoved {
 			if fi, err := os.Stat(filepath.Join(dir, filepath.FromSlash(e.path))); err == nil {
 				f.Modified = fi.ModTime()

internal/submodule/model.go

@@ -132,6 +132,7 @@ type FileChange struct {
 	Removed   int       // removed lines
 	Binary    bool      // line counts are unknown
 	Submodule bool      // a nested submodule pointer changed
+	Repo      bool      // an untracked directory that is a git repository itself
 	Modified  time.Time // modification time of the file; zero if it doesn't exist
 }
 

internal/submodule/status.go

@@ -55,21 +55,36 @@ func (s *Status) Issues() []Issue {
 	case WorktreeModified:
 		out = append(out, Issue{IssueChanged, LevelWarn, "uncommitted changes"})
 	case WorktreeUntracked:
-		out = append(out, Issue{IssueChanged, LevelWarn, "untracked files"})
+		out = append(out, Issue{IssueChanged, LevelWarn, s.untrackedText()})
 	}
 	return out
 }
 
-// HiddenIssues counts the issues of all loaded descendants and returns the
-// most severe level among them.
-func (m *Submodule) HiddenIssues() (count int, worst Level) {
+// Hidden counts issues below a submodule per level.
+type Hidden struct{ Warn, Danger int }
+
+// Total is the number of issues of all levels.
+func (h Hidden) Total() int { return h.Warn + h.Danger }
+
+// HiddenIssues counts the issues of all loaded descendants per level. A
+// descendant whose load failed counts as one danger, since its state is
+// unknown.
+func (m *Submodule) HiddenIssues() Hidden {
+	var h Hidden
 	Walk(m.Children, func(c *Submodule) {
+		if c.Status == nil && c.Err != nil {
+			h.Danger++
+		}
 		for _, is := range c.Status.Issues() {
-			count++
-			worst = max(worst, is.Level)
+			switch is.Level {
+			case LevelDanger:
+				h.Danger++
+			case LevelWarn:
+				h.Warn++
+			}
 		}
 	})
-	return count, worst
+	return h
 }
 
 // Walk calls fn for every submodule in depth-first order.
@@ -79,3 +94,18 @@ func Walk(mods []*Submodule, fn func(*Submodule)) {
 		Walk(m.Children, fn)
 	}
 }
+
+// untrackedText words the untracked-files issue: "untracked repository" if
+// everything untracked is a git repository of its own, e.g. a clone that was
+// never added as a submodule.
+func (s *Status) untrackedText() string {
+	if s.Changes == nil || s.Changes.Total != len(s.Changes.Files) {
+		return "untracked files"
+	}
+	for _, f := range s.Changes.Files {
+		if f.Kind != ChangeUntracked || !f.Repo {
+			return "untracked files"
+		}
+	}
+	return "untracked repository"
+}

internal/submodule/status_test.go

@@ -1,6 +1,7 @@
 package submodule
 
 import (
+	"errors"
 	"slices"
 	"testing"
 )
@@ -45,8 +46,35 @@ func TestHiddenIssues(t *testing.T) {
 	loading := &Submodule{}
 	root := &Submodule{Status: ok, Children: []*Submodule{child, {Status: ok}, loading}}
 
-	count, worst := root.HiddenIssues()
-	if count != 2 || worst != LevelDanger {
-		t.Errorf("HiddenIssues() = %d, %v; want 2, LevelDanger", count, worst)
+	if got := root.HiddenIssues(); got != (Hidden{Warn: 1, Danger: 1}) {
+		t.Errorf("HiddenIssues() = %+v; want 1 warn, 1 danger", got)
+	}
+}
+
+func TestUntrackedRepositoryWording(t *testing.T) {
+	repo := FileChange{Path: "lib/x/", Kind: ChangeUntracked, Repo: true}
+	file := FileChange{Path: "a.txt", Kind: ChangeUntracked}
+	for _, c := range []struct {
+		files []FileChange
+		want  string
+	}{
+		{[]FileChange{repo}, "untracked repository"},
+		{[]FileChange{repo, file}, "untracked files"},
+		{[]FileChange{file}, "untracked files"},
+	} {
+		s := &Status{Worktree: WorktreeUntracked, Changes: &Changes{Total: len(c.files), Files: c.files}}
+		got := s.Issues()
+		if len(got) == 0 || got[len(got)-1].Detail != c.want {
+			t.Errorf("%v: got %v, want %q", c.files, got, c.want)
+		}
+	}
+}
+
+func TestHiddenIssuesCountLoadErrors(t *testing.T) {
+	bad := &Submodule{Err: errors.New("boom")}
+	loading := &Submodule{}
+	parent := &Submodule{Children: []*Submodule{bad, loading}}
+	if got := parent.HiddenIssues(); got != (Hidden{Danger: 1}) {
+		t.Errorf("got %+v; want 1 danger", got)
 	}
 }

internal/tui/detail/changes.go

@@ -163,6 +163,8 @@ func (m Model) fileLines(files []submodule.FileChange) []string {
 		switch {
 		case f.Submodule:
 			r.counts = muted.Render("submodule")
+		case f.Repo:
+			r.counts = muted.Render("repository")
 		case f.Binary:
 			r.counts = muted.Render("bin")
 		default:

internal/tui/detail/detail.go

@@ -138,8 +138,16 @@ func (m Model) lines(s *submodule.Submodule) []string {
 	out = append(out, "")
 	if n := len(s.Children); n > 0 {
 		children := fmt.Sprintf("%d direct", n)
-		if k, worst := s.HiddenIssues(); k > 0 {
-			children += t.LevelStyle(worst, lipgloss.NewStyle()).Render(fmt.Sprintf(" · %d issue(s) below", k))
+		h := s.HiddenIssues()
+		var parts []string
+		if h.Danger > 0 {
+			parts = append(parts, t.LevelStyle(submodule.LevelDanger, lipgloss.NewStyle()).Render(fmt.Sprintf("%d error(s)", h.Danger)))
+		}
+		if h.Warn > 0 {
+			parts = append(parts, t.LevelStyle(submodule.LevelWarn, lipgloss.NewStyle()).Render(fmt.Sprintf("%d warning(s)", h.Warn)))
+		}
+		if len(parts) > 0 {
+			children += muted.Render(" · ") + strings.Join(parts, muted.Render(", ")) + muted.Render(" below")
 		}
 		out = append(out, label("Children")+children)
 	}

internal/tui/header/header.go

@@ -36,13 +36,17 @@ func View(t theme.Theme, repo *submodule.Repo, fetch Fetch, spinner string, widt
 	}
 
 	// count submodules per issue kind (most severe first), plus staged pins
-	var total, loading, staged int
+	var total, loading, errored, staged int
 	perKind := map[submodule.IssueKind]int{}
 	level := map[submodule.IssueKind]submodule.Level{}
 	submodule.Walk(repo.Submodules, func(s *submodule.Submodule) {
 		total++
 		if s.Status == nil {
-			loading++
+			if s.Err == nil {
+				loading++
+			} else {
+				errored++
+			}
 			return
 		}
 		if s.Status.PinStaged {
@@ -56,6 +60,9 @@ func View(t theme.Theme, repo *submodule.Repo, fetch Fetch, spinner string, widt
 
 	sep := seg(t.Muted, " · ")
 	mid := seg(t.Muted, fmt.Sprintf("%d submodules", total))
+	if errored > 0 {
+		mid += sep + t.LevelStyle(submodule.LevelDanger, bar).Render(fmt.Sprintf("%d error", errored))
+	}
 	for _, k := range []submodule.IssueKind{
 		submodule.IssueUnpushed, submodule.IssueConflict, submodule.IssueMissing,
 		submodule.IssueOffPin, submodule.IssueChanged,

internal/tui/keys.go

@@ -12,13 +12,13 @@ type keyMap struct {
 
 func defaultKeys() keyMap {
 	return keyMap{
-		Up:          key.NewBinding(key.WithKeys("up", "k"), key.WithHelp("↑/↓", "move")),
+		Up:          key.NewBinding(key.WithKeys("up", "k"), key.WithHelp("↑/k", "up")),
 		Down:        key.NewBinding(key.WithKeys("down", "j"), key.WithHelp("↓/j", "down")),
-		Left:        key.NewBinding(key.WithKeys("left", "h"), key.WithHelp("←/→", "collapse/expand")),
+		Left:        key.NewBinding(key.WithKeys("left", "h"), key.WithHelp("←/h", "collapse, parent")),
 		Right:       key.NewBinding(key.WithKeys("right", "l"), key.WithHelp("→/l", "expand, first child")),
 		Toggle:      key.NewBinding(key.WithKeys(" "), key.WithHelp("space", "toggle")),
-		CollapseAll: key.NewBinding(key.WithKeys("ctrl+left"), key.WithHelp("ctrl+←", "collapse all")),
-		ExpandAll:   key.NewBinding(key.WithKeys("ctrl+right"), key.WithHelp("ctrl+→", "expand all")),
+		CollapseAll: key.NewBinding(key.WithKeys("shift+left", "ctrl+left", "H"), key.WithHelp("H/⇧←", "collapse all")),
+		ExpandAll:   key.NewBinding(key.WithKeys("shift+right", "ctrl+right", "L"), key.WithHelp("L/⇧→", "expand all")),
 		Home:        key.NewBinding(key.WithKeys("home", "g"), key.WithHelp("home/g", "first")),
 		End:         key.NewBinding(key.WithKeys("end", "G"), key.WithHelp("end/G", "last")),
 		PageUp:      key.NewBinding(key.WithKeys("pgup"), key.WithHelp("pgup", "page up")),
@@ -35,7 +35,10 @@ func defaultKeys() keyMap {
 }
 
 func (k keyMap) ShortHelp() []key.Binding {
-	return []key.Binding{k.Up, k.Left, k.Toggle, k.Update, k.Bump, k.Fetch, k.Help, k.Quit}
+	move := key.NewBinding(key.WithKeys("up"), key.WithHelp("↑↓/jk", "move"))
+	fold := key.NewBinding(key.WithKeys("left"), key.WithHelp("←→/hl", "fold"))
+	all := key.NewBinding(key.WithKeys("H"), key.WithHelp("⇧←→/HL", "fold all"))
+	return []key.Binding{move, fold, all, k.Toggle, k.Help, k.Quit}
 }
 
 func (k keyMap) FullHelp() [][]key.Binding {

internal/tui/tree/tree.go

@@ -15,7 +15,7 @@ import (
 )
 
 const (
-	statusWidth = 14 // "unpushed +1 ·2"
+	statusWidth = 16 // "unpushed +1 ·2 ·3"
 	deltaWidth  = 6
 	maxRefWidth = 22
 )
@@ -414,11 +414,19 @@ func (m Model) nodeLine(r row, nameColW, refW int) string {
 	default:
 		status = seg(t.Muted, theme.InSync)
 	}
-	if k, worst := s.HiddenIssues(); collapsed && k > 0 {
-		if status != "" {
-			status += pad(1)
+	if h := s.HiddenIssues(); collapsed && h.Total() > 0 {
+		for _, c := range []struct {
+			level submodule.Level
+			n     int
+		}{{submodule.LevelDanger, h.Danger}, {submodule.LevelWarn, h.Warn}} {
+			if c.n == 0 {
+				continue
+			}
+			if status != "" {
+				status += pad(1)
+			}
+			status += t.LevelStyle(c.level, base).Render(fmt.Sprintf("%s%d", t.Glyphs.Problems, c.n))
 		}
-		status += t.LevelStyle(worst, base).Render(fmt.Sprintf("%s%d", t.Glyphs.Problems, k))
 	}
 	status = ansi.Truncate(status, statusWidth, "")
 	status += pad(statusWidth - lipgloss.Width(status))