filetree

1import { type BuiltinToolResults, type EngineInterface, type Register, type Timer, update } from 'claude-code'
2import { LINUX_LAUNCH, openCommand, openWithCommand } from './open'
3
4import type { Activity, FileNode, FileTree, Theme } from '../types'
5import { BRANCH_ICON, chainOf, type GitAction, gitActions, readOnly, readTargets, resolve, TONES } from './git'
6import type { RowSpec, RowsProps, Seg } from './rows'
7import { CHEVRON_CLOSED, CHEVRON_OPEN, fileIcon, GIT_COLOR } from './icons'
8import {
9  ancestorsOf,
10  type Change,
11  DEFAULT_THEME,
12  dirname,
13  emptyTree,
14  formatSize,
15  inside,
16  isAbsolute,
17  join,
18  mapper,
19  parseGit,
20  parseNumstat,
21  parseTheme,
22  posix,
23  relative,
24  dropBelow,
25  useDrives,
26  rollCounts,
27  replaceChildren,
28  rollUp,
29  stamp,
30  toNodes,
31  underAny,
32  visibleRows,
33} from './tree'
34
35const TREE = { plugin: 'filetree', key: 'tree' } as const
36const THEME = { plugin: 'filetree', key: 'theme' } as const
37const ACTIVITY = { plugin: 'filetree', key: 'activity' } as const
38const PANE = 'filetree'
39const SHIMMER = Object.fromEntries(Object.entries(TONES).map(([k, v]) => [k, { bright: v.bright, dim: v.dim }]))
40const BRANCH_ROW = '#branch'
41const FLASH_MS = 2700
42const RUNNING_MAX_MS = 600_000
43const NO_REPO_DEPTH = 4
44const DOUBLE_MS = 450
45const FIND_LIMIT = 200
46const READ_REVEAL_LIMIT = 12
47const SEARCH_REVEAL_LIMIT = 60
48const ACTIVITY_TTL_MS = 45_000
49const ADD_COLOR = '#98c379'
50const DEL_COLOR = '#e06c75'
51const THEME_FILE = '.local/state/omarchy/current/theme/colors.toml'
52const THEME_POLL_MS = 2000
53const FONT_SCRIPT =
54  'if command -v fc-list >/dev/null 2>&1; then f=$(fc-list ":charset=$1" file | head -n1 | cut -d: -f1); ' +
55  'else f=$(ls "$HOME"/Library/Fonts/*Nerd* /Library/Fonts/*Nerd* 2>/dev/null | head -n1); fi; ' +
56  '[ -n "$f" ] || { echo missing; exit 0; }; m=$(stat -c %Z "$f" 2>/dev/null || stat -f %c "$f"); p=$PPID; ' +
57  'while [ -n "$p" ] && [ "$p" -gt 1 ]; do c=$(ps -o comm= -p "$p" 2>/dev/null); c=$(basename "$c" 2>/dev/null | tr -d " "); case "$c" in ' +
58  'ghostty|kitty|alacritty|Alacritty|foot|footclient|wezterm-gui|konsole|gnome-terminal-|xterm|urxvt|st|Terminal|iTerm2) ' +
59  'e=$(ps -o etime= -p "$p" 2>/dev/null | awk -F\'[-:]\' \'{n=NF; s=$n+60*$(n-1); if (n>2) s+=3600*$(n-2); if (n>3) s+=86400*$(n-3); print s}\'); [ -n "$e" ] && [ $(( $(date +%s) - e )) -lt "$m" ] && echo stale || echo ok; exit 0;; esac; ' +
60  'p=$(ps -o ppid= -p "$p" 2>/dev/null | tr -d " "); done; echo ok'
61const PRUNE = ['.git', 'node_modules', 'target', '.venv', '__pycache__', 'dist', '.next']
62const HOME_PRUNE = ['Library', 'AppData', '.Trash']
63const SIZE_TIMEOUT_MS = 15_000
64const SIZE_JOBS = 2
65const SIZE_WALK_LIMIT = 50_000
66
67let blink: Timer | null = null
68let themePoll: Timer | null = null
69let themeMtime: number | null = null
70let generation = 0
71let lastPress = { key: '', at: 0 }
72let noNerd = false
73let glyphSetting = 'auto'
74let openWithSetting = ''
75let previewed: { path: string; text: string; note: string } | null = null
76let previewRows = 20
77let follow = true
78let followClaude = true
79let scanning: Promise<void> | null = null
80let scanJobs: Job[] = []
81let gitRun: Promise<void> | null = null
82let gitNext: Promise<void> | null = null
83let queuedReads: string[] = []
84let showReads = true
85let showWrites = true
86let searchIndex: { root: string; paths: Promise<string[]> } | null = null
87let activityId = 0
88let pointer = true
89let view = { from: 0, max: 0 }
90let nativeScroll = false
91let lastSync = 0
92let noDock = false
93let home = ''
94let platform: Promise<'linux' | 'darwin' | 'win32'> | null = null
95let dirty: { root: string; files: Record<string, Change> } = { root: '', files: {} }
96let markId = 0
97let listSeq = 0
98let lastRoot = ''
99let sizeDefault = false
100let sizeEpoch = 0
101let sizeActive = 0
102let sizeQueue: string[] = []
103const sizing = new Set<string>()
104const listLatest = new Map<string, number>()
105const unreadable = new Set<string>()
106const background = new Map<string, Background>()
107
108function osName($: EngineInterface): Promise<'linux' | 'darwin' | 'win32'> {
109  platform ??= (async () => {
110    if ((await $.env.get('OS')) === 'Windows_NT') return 'win32'
111    try {
112      return (await $.process.run(['uname', '-s'], { timeoutMs: 3_000 })).stdout.trim() === 'Darwin' ? 'darwin' : 'linux'
113    } catch {
114      return 'linux'
115    }
116  })()
117  return platform
118}
119
120async function cwdOf($: EngineInterface): Promise<string> {
121  return posix(await $.session.cwd())
122}
123
124function clean(segs: Seg[]): Seg[] {
125  for (const seg of segs) for (const k of Object.keys(seg) as (keyof Seg)[]) if (seg[k] === undefined) delete seg[k]
126  return segs
127}
128
129function faint(hex: string): string {
130  const v = parseInt(hex.slice(1), 16)
131  const ch = (shift: number) => Math.round(0x26 + (((v >> shift) & 255) - 0x26) * 0.3)
132  return `#${[16, 8, 0].map(x => ch(x).toString(16).padStart(2, '0')).join('')}`
133}
134
135async function get($: EngineInterface): Promise<FileTree> {
136  return { ...emptyTree(''), ...(await $.state.get(TREE)).value }
137}
138
139async function put($: EngineInterface, fn: (t: FileTree) => FileTree): Promise<void> {
140  await update($, TREE, cur => fn({ ...emptyTree(''), ...cur }))
141}
142
143function patch($: EngineInterface, fn: (t: FileTree) => Partial<FileTree>) {
144  return put($, t => ({ ...t, ...fn(t) }))
145}
146
147async function activities($: EngineInterface): Promise<Activity[]> {
148  return (await $.state.get(ACTIVITY)).value ?? []
149}
150
151async function setActivities($: EngineInterface, fn: (list: Activity[]) => Activity[]): Promise<void> {
152  await update($, ACTIVITY, cur => fn(cur ?? []).slice(-6))
153}
154
155async function list($: EngineInterface, dir: string): Promise<FileNode[] | null> {
156  try {
157    const entries = await $.fs.list(dir)
158    const resolved = await Promise.all(
159      entries.map(async e => {
160        if (!e.isLink) return { name: e.name, kind: e.kind, mtimeMs: e.mtimeMs, size: e.size, isLink: false }
161        try {
162          const target = await $.fs.stat(join(dir, e.name))
163          return target.kind === 'dir'
164            ? { name: e.name, kind: 'dir' as const, mtimeMs: target.mtimeMs, size: 0, isLink: false }
165            : { name: e.name, kind: 'file' as const, mtimeMs: target.mtimeMs, size: target.size, isLink: true }
166        } catch {
167          return { name: e.name, kind: 'other' as const, mtimeMs: 0, size: 0, isLink: true }
168        }
169      }),
170    )
171    unreadable.delete(dir)
172    return toNodes(dir, resolved)
173  } catch (err) {
174    if (!(await exists($, dir))) return []
175    if (!unreadable.has(dir)) {
176      unreadable.add(dir)
177      $.ui.toast(`could not list ${shortPath(dir)}: ${err instanceof Error ? err.message : String(err)}`)
178    }
179    return null
180  }
181}
182
183async function loadDirs($: EngineInterface, dirs: string[]): Promise<Map<string, FileNode[]>> {
184  const root = (await get($)).root
185  const seq = ++listSeq
186  for (const dir of dirs) listLatest.set(dir, seq)
187  const results = await Promise.all(dirs.map(async dir => [dir, await list($, dir)] as const))
188  const listed = new Map<string, FileNode[]>()
189  for (const [dir, kids] of results) {
190    if (listLatest.get(dir) !== seq) continue
191    listLatest.delete(dir)
192    if (kids) listed.set(dir, kids)
193  }
194  await patch($, t => (t.root === root ? { nodes: replaceChildren(t.nodes, listed) } : {}))
195  return listed
196}
197
198async function git($: EngineInterface, cwd: string, args: string[], timeoutMs = 20_000) {
199  return $.process.run(['git', '--no-optional-locks', '-C', cwd, ...args], { timeoutMs, env: { GIT_OPTIONAL_LOCKS: '0' } })
200}
201
202async function detectRepo($: EngineInterface): Promise<void> {
203  const t = await get($)
204  if (!t.root) return
205  let top = ''
206  let prefix = ''
207  try {
208    const run = await git($, t.root, ['rev-parse', '--show-prefix', '--show-toplevel'], 5_000)
209    const [p = '', tl = ''] = run.exitCode === 0 ? run.stdout.split('\n') : []
210    prefix = p.trim()
211    top = tl.trim()
212  } catch {
213    top = ''
214  }
215  await patch($, cur => (cur.root === t.root ? { top, prefix } : {}))
216}
217
218async function readGit($: EngineInterface): Promise<void> {
219  const t = await get($)
220  if (!t.root || !t.top) return
221  const root = t.root
222  try {
223    const status = await git($, root, ['status', '--porcelain=v1', '-b', '-z', '--ignored=traditional', '--untracked-files=normal', '--', '.'])
224    if (status.exitCode !== 0) return
225    const parsed = parseGit(status.stdout, root, t.prefix)
226    const diff: Record<string, [number, number]> = {}
227    const head = await git($, root, ['diff', 'HEAD', '--numstat', '-z', '--', '.'])
228    if (head.exitCode === 0) parseNumstat(head.stdout, root, t.prefix, diff)
229    const files = { ...parsed.files }
230    if (parsed.untrackedDirs.length) {
231      const others = await git($, root, ['ls-files', '-o', '--exclude-standard', '-z', '--', ...parsed.untrackedDirs.map(d => d.slice(root.length + 1) || '.')])
232      if (others.exitCode === 0) for (const rel of others.stdout.split('\0').filter(Boolean)) files[join(root, rel)] = 'new'
233    }
234    for (const path of Object.keys(diff)) if (files[path] === 'new') delete diff[path]
235    dirty = { root, files }
236    await patch($, cur =>
237      cur.root === root
238        ? {
239            git: parsed.git,
240            ignored: parsed.ignored,
241            untrackedDirs: parsed.untrackedDirs,
242            branch: parsed.branch,
243            counts: rollCounts(files, root),
244            diff: rollUp(diff, root),
245          }
246        : {},
247    )
248  } catch {
249    return
250  }
251}
252
253function refreshGit($: EngineInterface): Promise<void> {
254  if (!gitRun) {
255    gitRun = readGit($).finally(() => {
256      gitRun = null
257    })
258    return gitRun
259  }
260  const rerun = () => {
261    gitNext = null
262    return refreshGit($)
263  }
264  gitNext ??= gitRun.then(rerun, rerun)
265  return gitNext
266}
267
268async function reset($: EngineInterface, root: string, focus = false): Promise<void> {
269  const prev = await get($)
270  generation += 1
271  blink?.cancel()
272  blink = null
273  lastRoot = root
274  searchIndex = null
275  sizeEpoch += 1
276  sizeQueue = []
277  await put($, () => ({ ...emptyTree(root), showHidden: prev.showHidden, showSize: prev.root ? prev.showSize : sizeDefault }))
278  const title = `Files: ${root.split('/').pop() || root}`
279  if (focus) await $.ui.open({ id: PANE, title, focus: true })
280  else if (!noDock) await $.ui.open({ id: PANE, title })
281  await loadDirs($, [root])
282  await detectRepo($)
283  await refreshGit($)
284}
285
286async function revealPaths($: EngineInterface, paths: string[]): Promise<void> {
287  const tried = new Set<string>()
288  for (let pass = 0; pass < 32; pass++) {
289    const t = await get($)
290    const loaded = new Set(t.nodes.filter(n => n.loaded).map(n => n.id))
291    if (t.nodes.some(n => n.parent === t.root)) loaded.add(t.root)
292    const need = new Set<string>()
293    for (const p of paths) {
294      for (const dir of [t.root, ...ancestorsOf(p, t.root).reverse()]) {
295        if (!loaded.has(dir)) {
296          if (!tried.has(dir)) need.add(dir)
297          break
298        }
299      }
300    }
301    if (need.size === 0) return
302    for (const dir of need) tried.add(dir)
303    await loadDirs($, [...need])
304  }
305}
306
307function pruneArgs(root: string, ignored: string[] = []): string[] {
308  const names = broad(root) ? [...PRUNE, ...HOME_PRUNE] : PRUNE
309  return ['(', ...names.flatMap((name, i) => (i === 0 ? ['-name', name] : ['-o', '-name', name])), ...ignored.flatMap(p => ['-o', '-path', p]), ')', '-prune', '-o']
310}
311
312async function newer($: EngineInterface, paths: string[], sinceMs: number): Promise<string[]> {
313  const stats = await Promise.all(
314    paths.map(async p => {
315      try {
316        return (await $.fs.stat(p)).mtimeMs > sinceMs ? p : ''
317      } catch {
318        return ''
319      }
320    }),
321  )
322  return stats.filter(Boolean)
323}
324
325function broad(root: string): boolean {
326  return root === home || root === '/' || /^[A-Za-z]:\/$/.test(root)
327}
328
329function rootOfDisk(root: string): boolean {
330  return root === '/' || /^[A-Za-z]:\/$/.test(root)
331}
332
333async function changedSince($: EngineInterface, root: string, since: Since, depth: number, ignored: string[] = []): Promise<string[]> {
334  if (rootOfDisk(root)) return []
335  const test = since.mark ? ['-newer', since.mark] : ['-newermt', `@${(since.ms / 1000).toFixed(3)}`]
336  try {
337    const run = await $.process.run(['find', '-H', root, '-xdev', ...(depth ? ['-maxdepth', String(depth)] : []), ...pruneArgs(root, ignored.filter(p => inside(root, p)).slice(0, 40)), ...test, '-print0'], { timeoutMs: 8_000 })
338    return run.stdout.split('\0').filter(p => p && p !== root)
339  } catch {
340    return []
341  }
342}
343
344async function changedInRepo($: EngineInterface, root: string, since: Since, before: Record<string, Change>, ignored: string[]): Promise<{ hits: string[]; gone: string[] }> {
345  if (since.os !== 'win32') return { hits: await changedSince($, root, since, 0, ignored), gone: [] }
346  if (dirty.root !== root) return { hits: [], gone: [] }
347  const entries = Object.entries(dirty.files)
348  const gone = entries.filter(([p, c]) => c === 'del' && before[p] !== 'del').map(([p]) => p)
349  const live = entries.filter(([, c]) => c !== 'del').map(([p]) => p)
350  return { hits: await newer($, live.slice(0, 4_000), since.ms), gone }
351}
352
353type Since = { ms: number; mark: string; os: 'linux' | 'darwin' | 'win32' }
354
355async function sinceNow($: EngineInterface, writes: boolean): Promise<Since> {
356  const ms = await $.clock.now()
357  const os = await osName($)
358  if (os !== 'darwin' || !writes) return { ms, mark: '', os }
359  const mark = `${((await $.env.get('TMPDIR')) || '/tmp').replace(/\/+$/, '')}/filetree-${await $.session.id()}-${++markId}.mark`
360  try {
361    await $.process.run(['touch', mark], { timeoutMs: 3_000 })
362    return { ms, mark, os }
363  } catch {
364    return { ms, mark: '', os }
365  }
366}
367
368async function walkSize($: EngineInterface, dir: string): Promise<number> {
369  let total = 0
370  let seen = 0
371  let level = [dir]
372  while (level.length) {
373    const next: string[] = []
374    for (const d of level) {
375      let entries
376      try {
377        entries = await $.fs.list(d)
378      } catch {
379        continue
380      }
381      for (const e of entries) {
382        if (++seen > SIZE_WALK_LIMIT) return -1
383        if (e.kind === 'dir' && !e.isLink) next.push(join(d, e.name))
384        else if (e.kind === 'file') total += e.size
385      }
386    }
387    level = next
388  }
389  return total
390}
391
392async function dirSize($: EngineInterface, dir: string): Promise<number> {
393  if (rootOfDisk(dir)) return -1
394  if ((await osName($)) === 'win32') return walkSize($, dir)
395  try {
396    const run = await $.process.run(['du', '-skxH', dir], { timeoutMs: SIZE_TIMEOUT_MS })
397    const kb = Number(run.stdout.trim().split(/\s/)[0] || NaN)
398    return Number.isFinite(kb) ? kb * 1024 : -1
399  } catch {
400    return -1
401  }
402}
403
404function pumpSizes($: EngineInterface): void {
405  while (sizeActive < SIZE_JOBS && sizeQueue.length) {
406    const dir = sizeQueue.shift() ?? ''
407    const epoch = sizeEpoch
408    sizing.add(dir)
409    sizeActive += 1
410    void dirSize($, dir)
411      .then(async bytes => {
412        if (epoch === sizeEpoch) return patch($, cur => (inside(cur.root, dir) ? { dirSizes: { ...cur.dirSizes, [dir]: bytes } } : {}))
413        const cur = await get($)
414        if (cur.showSize && inside(cur.root, dir) && !(dir in cur.dirSizes) && !sizeQueue.includes(dir)) sizeQueue.push(dir)
415      })
416      .catch(() => undefined)
417      .finally(() => {
418        sizing.delete(dir)
419        sizeActive -= 1
420        pumpSizes($)
421      })
422  }
423}
424
425function wantSizes($: EngineInterface, dirs: string[]): void {
426  for (const dir of dirs) if (!sizing.has(dir) && !sizeQueue.includes(dir)) sizeQueue.push(dir)
427  pumpSizes($)
428}
429
430async function staleSizes($: EngineInterface, paths?: string[]): Promise<void> {
431  sizeEpoch += 1
432  sizeQueue = []
433  await patch($, cur => {
434    if (!paths) return { dirSizes: {} }
435    const keep: Record<string, number> = {}
436    for (const [dir, bytes] of Object.entries(cur.dirSizes)) if (!paths.some(p => inside(dir, p))) keep[dir] = bytes
437    return { dirSizes: keep }
438  })
439}
440
441function openDirs(t: FileTree): string[] {
442  const open = new Set(t.expanded)
443  return t.nodes.filter(n => n.kind === 'dir' && n.loaded && open.has(n.id)).map(n => n.id)
444}
445
446function keepTop(cur: FileTree, expanded: string[]): Partial<FileTree> {
447  if (followClaude) return { scroll: null }
448  const top = visibleRows(cur)[cur.scroll ?? view.from]?.node.id
449  const at = top ? visibleRows({ ...cur, expanded }).findIndex(r => r.node.id === top) : -1
450  return at < 0 ? {} : { scroll: at }
451}
452
453async function flash($: EngineInterface, tones: Record<string, string>): Promise<void> {
454  const unique = Object.keys(tones)
455  if (unique.length === 0) return
456  const mine = ++generation
457  const root = (await get($)).root
458  blink?.cancel()
459  blink = null
460  await patch($, cur => {
461    if (cur.root !== root) return {}
462    const open = new Set(cur.expanded)
463    const bright = new Set([...(cur.flashOn ? cur.flash.filter(id => !unique.includes(id)) : []), ...unique])
464    const dim = new Set<string>()
465    const all: Record<string, string> = cur.flashOn ? { ...cur.flashTones } : {}
466    if (cur.flashOn) {
467      for (const id of cur.flashDim) dim.add(id)
468    }
469    for (const id of unique) {
470      const tone = tones[id] ?? 'orange'
471      all[id] = tone
472      if (id === BRANCH_ROW) continue
473      const chain = ancestorsOf(id, cur.root)
474      if (!chain.some(a => !open.has(a))) continue
475      for (const a of chain) {
476        if (!open.has(a)) {
477          dim.add(a)
478          all[a] = all[a] ?? tone
479        }
480        open.add(a)
481      }
482    }
483    for (const id of bright) dim.delete(id)
484    return {
485      flash: [...bright],
486      flashDim: [...dim],
487      flashOn: true,
488      flashTones: all,
489      expanded: [...open],
490      ...keepTop(cur, [...open]),
491    }
492  })
493  if (generation !== mine) return
494  blink = $.clock.after(FLASH_MS, () => {
495    if (generation !== mine) return
496    blink = null
497    void patch($, cur => (generation === mine ? { flash: [], flashDim: [], flashOn: false, flashTones: {} } : {}))
498  })
499}
500
501async function followCwd($: EngineInterface): Promise<boolean> {
502  if (!follow) return false
503  const cwd = await cwdOf($)
504  const t = await get($)
505  if (t.root === cwd) return false
506  await reset($, cwd)
507  return true
508}
509
510type Pending = { actions: GitAction[]; ids: number[]; command: string; head: string }
511type Job = { actions: GitAction[]; since: Since; initRepo: boolean; readOnly: boolean }
512type Background = { p: Pending | null; job: Job; reads: string[] }
513type GitOperation = NonNullable<BuiltinToolResults['Bash']['gitOperation']>
514type Outcome = { state: 'done' | 'failed'; label: string; detail: string }
515
516const PROOF: Record<string, (op: GitOperation) => boolean> = {
517  push: op => Boolean(op.push),
518  merge: op => op.branch?.action === 'merged',
519  rebase: op => op.branch?.action === 'rebased',
520  'pr create': op => op.pr?.action === 'created',
521  'pr merge': op => op.pr?.action === 'merged',
522  'pr comment': op => op.pr?.action === 'commented',
523}
524
525async function startGit($: EngineInterface, actions: GitAction[]): Promise<number[]> {
526  const now = await $.clock.now()
527  const ids = actions.map(() => ++activityId)
528  await setActivities($, cur => [
529    ...cur.filter(a => a.state === 'running' || now - a.at < ACTIVITY_TTL_MS),
530    ...actions.map((a, i) => ({
531      id: ids[i] ?? 0,
532      kind: a.kind,
533      label: a.running,
534      state: 'running' as const,
535      detail: '',
536      at: now,
537      tone: a.tone,
538      nerd: a.icon.nerd,
539      plain: a.icon.plain,
540    })),
541  ])
542  return ids
543}
544
545async function headOf($: EngineInterface, cwd: string): Promise<string> {
546  try {
547    const run = await git($, cwd, ['rev-parse', 'HEAD'], 5_000)
548    return run.exitCode === 0 ? run.stdout.trim() : ''
549  } catch {
550    return ''
551  }
552}
553
554async function outcomes($: EngineInterface, p: Pending, ok: boolean, op: GitOperation | undefined): Promise<Outcome[]> {
555  const chain = chainOf(p.command)
556  const after = p.actions.some(a => a.verb === 'commit') && !op?.commit ? await headOf($, (await get($)).root || (await cwdOf($))) : ''
557  return p.actions.map(a => {
558    if (a.verb === 'commit') {
559      const sha = op?.commit?.sha || (after && after !== p.head ? after : '')
560      return sha ? { state: 'done', label: a.done, detail: sha.slice(0, 7) } : { state: 'failed', label: `${a.verb} failed`, detail: '' }
561    }
562    if ((op && PROOF[a.verb]?.(op)) || (ok && chain.and)) return { state: 'done', label: a.done, detail: '' }
563    if (!ok && chain.and && chain.size === 1) return { state: 'failed', label: `${a.verb} failed`, detail: '' }
564    return { state: 'done', label: `ran ${a.kind}`, detail: '' }
565  })
566}
567
568async function finishGit($: EngineInterface, p: Pending, results: Outcome[]): Promise<void> {
569  const now = await $.clock.now()
570  await setActivities($, cur =>
571    cur.map(a => {
572      const i = p.ids.indexOf(a.id)
573      const result = i < 0 ? undefined : results[i]
574      return result ? { ...a, ...result, at: now } : a
575    }),
576  )
577  $.clock.after(ACTIVITY_TTL_MS + 500, () => void setActivities($, cur => cur.filter(a => a.state === 'running' || a.at > now)))
578}
579
580function failAll(p: Pending): Outcome[] {
581  return p.actions.map(a => ({ state: 'failed', label: `${a.verb} failed`, detail: '' }))
582}
583
584function proven(p: Pending | null, results: Outcome[]): GitAction[] {
585  return p ? p.actions.filter((_, i) => results[i]?.state !== 'failed') : []
586}
587
588function taskEnds(text: string): [string, string][] {
589  return [...text.matchAll(/<task-notification>([\s\S]*?)<\/task-notification>/g)].flatMap(m => {
590    const id = /<task-id>([^<]*)<\/task-id>/.exec(m[1] ?? '')?.[1]?.trim()
591    const status = /<status>([^<]*)<\/status>/.exec(m[1] ?? '')?.[1]?.trim()
592    return id && status ? [[id, status] as [string, string]] : []
593  })
594}
595
596async function settleBackground($: EngineInterface, text: string): Promise<void> {
597  if (background.size === 0 || !text.includes('<task-notification>')) return
598  for (const [id, status] of taskEnds(text)) {
599    const task = background.get(id)
600    if (!task) continue
601    background.delete(id)
602    const ok = status === 'completed'
603    const results = task.p ? await outcomes($, task.p, ok, undefined) : []
604    if (task.p) await finishGit($, task.p, results)
605    if (showReads) queuedReads.push(...task.reads)
606    scheduleScan($, { ...task.job, actions: proven(task.p, results) })
607  }
608}
609
610async function gitPaths($: EngineInterface, root: string, prefix: string, committed: boolean): Promise<string[]> {
611  const map = mapper(root, prefix)
612  try {
613    const run = committed
614      ? await git($, root, ['diff-tree', '--root', '--no-commit-id', '--name-only', '-r', '-z', 'HEAD'], 5_000)
615      : await git($, root, ['diff', '--cached', '--name-only', '-z'], 5_000)
616    return run.exitCode === 0 ? run.stdout.split('\0').filter(Boolean).flatMap(rel => map(rel) ?? []) : []
617  } catch {
618    return []
619  }
620}
621
622async function gitDir($: EngineInterface, cwd: string): Promise<string> {
623  for (let dir = cwd, i = 0; i < 64; i++) {
624    try {
625      const dot = join(dir, '.git')
626      const st = await $.fs.stat(dot)
627      if (st.kind === 'dir') return dot
628      const ref = /^gitdir:\s*(.+)$/m.exec(String(await $.fs.read(dot)))?.[1]?.trim()
629      if (ref) return resolve(dir, ref, home)
630    } catch {
631      const up = dirname(dir)
632      if (up === dir) return ''
633      dir = up
634      continue
635    }
636    return ''
637  }
638  return ''
639}
640
641async function sync($: EngineInterface, force = false): Promise<void> {
642  const now = await $.clock.now()
643  if (!force && now - lastSync < 2_000) return
644  lastSync = now
645  searchIndex = null
646  const t = await get($)
647  if (!t.root) return
648  await loadDirs($, [t.root, ...openDirs(t)])
649  if (t.top) await refreshGit($)
650}
651
652async function copyPath($: EngineInterface, id: string, absolute: boolean, surface?: string): Promise<void> {
653  const t = await get($)
654  const text = !absolute && id !== t.root && inside(t.root, id) ? id.slice(t.root.endsWith('/') ? t.root.length : t.root.length + 1) : id
655  const done = await $.ui.copy({ text, ...(surface ? { surface: surface as 'terminal' } : {}) })
656  $.ui.toast(done.isCopied ? `Copied ${text}` : 'Could not copy the path')
657}
658
659async function exists($: EngineInterface, path: string): Promise<boolean> {
660  try {
661    await $.fs.stat(path)
662    return true
663  } catch {
664    return false
665  }
666}
667
668async function afterBash($: EngineInterface, jobs: Job[]): Promise<void> {
669  const reads = queuedReads
670  queuedReads = []
671  if (await followCwd($)) return
672  const t = await get($)
673  if (!t.root) return
674  const actions = jobs.flatMap(j => j.actions)
675  const writers = jobs.filter(j => !j.readOnly)
676  const since = (writers.length ? writers : jobs).reduce((a, j) => (j.since.ms < a.ms ? j.since : a), (writers[0] ?? jobs[0])?.since ?? { ms: 0, mark: '', os: 'linux' as const })
677  const writes = !jobs.every(j => j.readOnly)
678  const before = dirty.root === t.root ? dirty.files : {}
679  if (jobs.some(j => j.initRepo)) await detectRepo($)
680  else if (!t.top && (await exists($, join(t.root, '.git')))) await detectRepo($)
681  const probed = await get($)
682  if (probed.top && (writes || probed.top !== t.top)) await refreshGit($)
683  if (writes) {
684    searchIndex = null
685    await staleSizes($)
686  }
687  const fresh = await get($)
688  const ignored = new Set(fresh.ignored)
689  const tones: Record<string, string> = {}
690  if (writes) {
691    const found = fresh.top
692      ? await changedInRepo($, t.root, since, before, fresh.ignored)
693      : { hits: since.os === 'win32' ? [] : await changedSince($, t.root, since, NO_REPO_DEPTH), gone: [] }
694    const hits = found.hits.filter(x => inside(t.root, x) && !underAny(x, ignored, t.root)).slice(0, FIND_LIMIT)
695    await revealPaths($, hits)
696    const loaded = await get($)
697    const dirs = [...new Set([loaded.root, ...openDirs(loaded), ...hits.map(dirname), ...found.gone.map(dirname)])].filter(d => inside(loaded.root, d))
698    const listed = await loadDirs($, dirs)
699    if (!fresh.top && since.os === 'win32')
700      for (const kids of listed.values()) for (const n of kids) if (n.mtime > since.ms && hits.length < FIND_LIMIT) hits.push(n.id)
701    await patch($, cur => {
702      const ids = new Set(cur.nodes.map(n => n.id))
703      return { expanded: cur.expanded.filter(id => ids.has(id)) }
704    })
705    const present = new Set((await get($)).nodes.map(n => n.id))
706    const touchTone = actions.find(a => !['commit', 'push', 'add'].includes(a.verb))?.tone ?? 'orange'
707    if (showWrites) for (const id of hits) if (present.has(id)) tones[id] = touchTone
708  }
709  if (showReads) {
710    const found: string[] = []
711    for (const r of reads) {
712      if (found.length >= READ_REVEAL_LIMIT) break
713      if (r !== t.root && inside(t.root, r) && !underAny(r, ignored, t.root) && (await exists($, r))) found.push(r)
714    }
715    if (found.length) {
716      await revealPaths($, found)
717      const shown = new Set((await get($)).nodes.map(n => n.id))
718      for (const r of found) if (shown.has(r) && !tones[r]) tones[r] = 'purple'
719    }
720  }
721  if (showWrites && actions.length) {
722    const final = await get($)
723    const committed = actions.some(a => a.verb === 'commit')
724    if ((committed || actions.some(a => a.verb === 'add')) && final.top) {
725      const paths = (await gitPaths($, final.root, final.prefix, committed)).filter(x => !underAny(x, ignored, final.root)).slice(0, READ_REVEAL_LIMIT)
726      await revealPaths($, paths)
727      const shown = new Set((await get($)).nodes.map(n => n.id))
728      for (const x of paths) if (shown.has(x)) tones[x] = 'green'
729    }
730    const pushLike = actions.find(a => ['push', 'pull', 'fetch', 'checkout', 'switch', 'branch', 'merge', 'rebase', 'tag'].includes(a.verb) || a.kind.startsWith('gh '))
731    if (pushLike) tones[BRANCH_ROW] = pushLike.tone
732    else if (committed) tones[BRANCH_ROW] = 'green'
733  }
734  await flash($, tones)
735}
736
737function scheduleScan($: EngineInterface, job: Job): void {
738  scanJobs.push(job)
739  if (scanning) return
740  scanning = (async () => {
741    while (scanJobs.length) {
742      const jobs = scanJobs
743      scanJobs = []
744      try {
745        await afterBash($, jobs)
746      } finally {
747        const marks = jobs.map(j => j.since.mark).filter(Boolean)
748        if (marks.length) await $.process.run(['rm', '-f', ...marks], { timeoutMs: 3_000 }).catch(() => undefined)
749      }
750    }
751  })().finally(() => {
752    scanning = null
753  })
754}
755
756async function touched($: EngineInterface, paths: string[], tone: string, show: boolean): Promise<void> {
757  if (tone !== 'purple' && previewed && paths.map(posix).includes(previewed.path)) previewed = null
758  if (await followCwd($)) return
759  const t = await get($)
760  if (!t.root) return
761  const within = paths.map(posix).filter(p => inside(t.root, p))
762  if (within.length === 0) return
763  if (tone !== 'purple') {
764    searchIndex = null
765    await staleSizes($, within)
766    await revealPaths($, within.map(dirname))
767    await loadDirs($, [...new Set(within.map(dirname))].filter(d => inside(t.root, d)))
768    await refreshGit($)
769  } else await revealPaths($, within)
770  if (!show) return
771  const tones: Record<string, string> = {}
772  for (const p of within) tones[p] = tone
773  await flash($, tones)
774}
775
776async function reveal($: EngineInterface, paths: string[]): Promise<void> {
777  if (await followCwd($)) return
778  await revealPaths($, paths)
779  await patch($, cur => {
780    const open = new Set(cur.expanded)
781    for (const p of paths) for (const a of ancestorsOf(p, cur.root)) open.add(a)
782    return { expanded: [...open], cursor: paths[paths.length - 1] ?? cur.cursor, scroll: null }
783  })
784}
785
786async function walk($: EngineInterface, root: string, depth: number, limit: number): Promise<string[]> {
787  const out: string[] = []
788  let level = [root]
789  for (let d = 0; d < depth && level.length && out.length < limit; d++) {
790    const next: string[] = []
791    for (const dir of level) {
792      for (const n of (await list($, dir)) ?? []) {
793        if (n.kind === 'dir') {
794          if (!PRUNE.includes(n.name)) next.push(n.id)
795        } else out.push(n.id)
796      }
797      if (out.length >= limit) break
798    }
799    level = next
800  }
801  return out
802}
803
804async function listAll($: EngineInterface, t: FileTree): Promise<string[] | null> {
805  try {
806    if (!t.top && (await osName($)) === 'win32') return await walk($, t.root, rootOfDisk(t.root) ? 3 : 6, 20_000)
807    const run = t.top
808      ? await git($, t.root, ['ls-files', '-co', '--exclude-standard', '-z'], 10_000)
809      : await $.process.run(['find', '-H', t.root, '-xdev', '-maxdepth', rootOfDisk(t.root) ? '3' : '6', ...pruneArgs(t.root), '-type', 'f', '-print0'], { timeoutMs: 10_000 })
810    if (t.top && run.exitCode !== 0) return null
811    const paths = run.stdout.split('\0').filter(Boolean)
812    if (run.isStdoutTruncated) paths.pop()
813    return paths.map(p => (isAbsolute(p) ? p : join(t.root, p)))
814  } catch {
815    return null
816  }
817}
818
819function indexPaths($: EngineInterface, t: FileTree): Promise<string[]> {
820  if (searchIndex?.root !== t.root) {
821    const index: { root: string; paths: Promise<string[]> } = {
822      root: t.root,
823      paths: listAll($, t).then(paths => {
824        if (paths === null && searchIndex === index) searchIndex = null
825        return paths ?? []
826      }),
827    }
828    searchIndex = index
829  }
830  return searchIndex.paths
831}
832
833async function search($: EngineInterface, query: string): Promise<string[]> {
834  if (!(await get($)).query.trim()) searchIndex = null
835  await patch($, () => ({ query }))
836  const q = query.trim().toLowerCase()
837  if (!q) return []
838  const t = await get($)
839  const hits = (await indexPaths($, t)).filter(p => relative(t.root, p).toLowerCase().includes(q)).slice(0, SEARCH_REVEAL_LIMIT)
840  if ((await get($)).query !== query) return []
841  await revealPaths($, hits)
842  const shown = await get($)
843  const ids = new Set(shown.nodes.map(n => n.id))
844  const stale = [...new Set(hits.filter(p => !ids.has(p)).map(dirname))].filter(d => inside(shown.root, d))
845  if (stale.length) await loadDirs($, stale)
846  return hits
847}
848
849async function jump($: EngineInterface, query: string): Promise<void> {
850  const hits = (await search($, query)).slice(0, 10)
851  await patch($, cur => {
852    const open = new Set(cur.expanded)
853    for (const p of hits) for (const a of ancestorsOf(p, cur.root)) open.add(a)
854    return { query: '', expanded: [...open], cursor: hits[0] ?? cur.cursor, scroll: null }
855  })
856}
857
858async function fontState($: EngineInterface, charset: string): Promise<'ok' | 'stale' | 'missing'> {
859  try {
860    const out = (await $.process.run(['sh', '-c', FONT_SCRIPT, 'sh', charset], { timeoutMs: 5_000 })).stdout.trim()
861    return out === 'stale' || out === 'missing' ? out : 'ok'
862  } catch {
863    return 'missing'
864  }
865}
866
867async function finePointerOk($: EngineInterface): Promise<boolean> {
868  if (!(await $.env.get('HERDR_ENV'))) return true
869  try {
870    const out = (await $.process.run([(await $.env.get('HERDR_BIN_PATH')) || 'herdr', '--version'], { timeoutMs: 3_000 })).stdout
871    const [major = 0, minor = 0, fix = 0] = (/(\d+)\.(\d+)\.(\d+)/.exec(out) ?? []).slice(1).map(Number)
872    return major * 1e6 + minor * 1e3 + fix >= 9_001
873  } catch {
874    return false
875  }
876}
877
878const PREVIEW_CHARS = 90_000
879const PREVIEW_LINE = 2_000
880
881function fitSerialized(lines: string[], max: number): string[] {
882  let size = 0
883  for (let i = 0; i < lines.length; i++) {
884    size += JSON.stringify(lines[i]).length
885    if (size > max) return lines.slice(0, i)
886  }
887  return lines
888}
889
890async function loadPreview($: EngineInterface, path: string): Promise<void> {
891  let text = ''
892  let note = ''
893  try {
894    const stat = await $.fs.stat(path)
895    if (stat.size > 4_000_000) note = `${formatSize(stat.size)}, too large to preview`
896    else {
897      text = await $.fs.read(path)
898      if (text.slice(0, 8000).includes('\0')) {
899        text = ''
900        note = `binary file, ${formatSize(stat.size)}`
901      }
902    }
903  } catch (err) {
904    note = `could not read: ${String((err as Error)?.message ?? err).split('\n')[0]}`
905  }
906  const total = text.length
907  let lines = text.slice(0, PREVIEW_CHARS).replace(/\r\n?/g, '\n').replace(/[\u0000-\u0008\u000b-\u001f\u007f]/g, '').split('\n')
908  if (total > PREVIEW_CHARS && lines.length > 1) lines.pop()
909  lines = lines.map(l => (l.length > PREVIEW_LINE ? `${l.slice(0, PREVIEW_LINE)}…` : l))
910  const fit = fitSerialized(lines, PREVIEW_CHARS)
911  if (total > PREVIEW_CHARS || fit.length < lines.length) note = `first ${fit.length.toLocaleString('en')} lines of ${total.toLocaleString('en')} characters`
912  previewed = { path, text: fit.join('\n'), note }
913}
914
915async function showPreview($: EngineInterface, path: string): Promise<void> {
916  await loadPreview($, path)
917  await patch($, () => ({ preview: path, previewTop: 0, selected: path }))
918}
919
920async function closePreview($: EngineInterface): Promise<void> {
921  await patch($, () => ({ preview: '', previewTop: 0 }))
922}
923
924async function scrollPreview($: EngineInterface, by: number): Promise<void> {
925  const t = await get($)
926  const last = Math.max(0, (previewed?.text.split('\n').length ?? 1) - previewRows)
927  const top = Math.max(0, Math.min(last, t.previewTop + by))
928  if (top !== t.previewTop) await patch($, () => ({ previewTop: top }))
929}
930
931function previewLines(text: string, top: number, rows: number, markdown: boolean): { text: string; top: number } {
932  const lines = text.split('\n')
933  const from = Math.max(0, Math.min(top, lines.length - 1))
934  let shown = lines.slice(from, from + rows)
935  if (markdown) {
936    // Reopen a code fence the window starts inside, so the rest is not read as prose.
937    let fence = ''
938    let opener = ''
939    for (const line of lines.slice(0, from)) {
940      const m = /^ {0,3}(`{3,}|~{3,})(.*)$/.exec(line)
941      if (!m) continue
942      const mark = m[1] ?? ''
943      if (!fence) {
944        fence = mark
945        opener = line.trimStart()
946      } else if (mark[0] === fence[0] && mark.length >= fence.length && !(m[2] ?? '').trim()) fence = ''
947    }
948    if (fence) shown = [opener, ...shown]
949  }
950  return { text: shown.join('\n'), top: from }
951}
952
953async function openFile($: EngineInterface, path: string, external = false): Promise<void> {
954  if (!external && openWithSetting.trim() === 'preview') return showPreview($, path)
955  const os = await osName($)
956  const native = (p: string) => (os === 'win32' ? p.replace(/\//g, '\\') : p)
957  const custom = external ? null : openWithCommand(openWithSetting, native(path), native(dirname(path)))
958  const { argv, init } = custom ? { argv: os === 'linux' ? ['sh', '-c', LINUX_LAUNCH, 'sh', ...custom] : custom, init: { timeoutMs: 10_000 } } : openCommand(os, path)
959  try {
960    const run = await $.process.run(argv, init)
961    if (run.exitCode !== 0) $.ui.toast(`could not open ${path} with ${custom?.[0] ?? argv[0]}: ${run.stderr.trim().split('\n')[0] || `exit ${run.exitCode}`}`)
962  } catch {
963    $.ui.toast(`could not open ${path} with ${custom?.[0] ?? argv[0]}`)
964  }
965}
966
967async function toggle($: EngineInterface, n: FileNode): Promise<void> {
968  if (n.kind === 'dir' && !(await get($)).expanded.includes(n.id)) await loadDirs($, [n.id])
969  await patch($, t => {
970    const open = new Set(t.expanded)
971    if (n.kind === 'dir') open.has(n.id) ? open.delete(n.id) : open.add(n.id)
972    return { expanded: [...open], cursor: n.id, selected: n.kind === 'dir' ? t.selected : n.id }
973  })
974}
975
976async function press($: EngineInterface, n: FileNode): Promise<void> {
977  const now = await $.clock.now()
978  const isDouble = lastPress.key === n.id && now - lastPress.at < DOUBLE_MS
979  lastPress = { key: isDouble ? '' : n.id, at: now }
980  if (!isDouble) {
981    await toggle($, n)
982    return
983  }
984  await openNode($, n)
985}
986
987async function openNode($: EngineInterface, n: FileNode): Promise<void> {
988  if (n.kind === 'dir') {
989    follow = false
990    await reset($, n.id)
991  } else await openFile($, n.id)
992}
993
994async function loadTheme($: EngineInterface): Promise<void> {
995  const path = `${(await $.env.get('HOME')) ?? ''}/${THEME_FILE}`
996  try {
997    const stat = await $.fs.stat(path)
998    if (stat.kind !== 'file') throw new Error('no theme file')
999    if (stat.mtimeMs === themeMtime) return
1000    await $.state.set(THEME, parseTheme(String(await $.fs.read(path))))
1001    themeMtime = stat.mtimeMs
1002  } catch {
1003    if (themeMtime === 0) return
1004    await $.state.set(THEME, DEFAULT_THEME)
1005    themeMtime = 0
1006  }
1007}
1008
1009function shortPath(path: string): string {
1010  return home && inside(home, path) ? `~${path.slice(home.length)}` : path
1011}
1012
1013export const register: Register = (on, options) => {
1014  glyphSetting = typeof options?.glyphs === 'string' ? options.glyphs : 'auto'
1015  const activity = typeof options?.activity === 'string' ? options.activity : 'reads and writes'
1016  showReads = activity.includes('reads')
1017  showWrites = activity.includes('writes')
1018  followClaude = options?.follow !== 'off'
1019  sizeDefault = options?.column === 'size'
1020  openWithSetting = typeof options?.open === 'string' ? options.open : ''
1021  on('session.start', async ($, e, next) => {
1022    await $.command.register({ name: 'filetree', description: 'Show the file tree; args: [path] (no path = cwd)' })
1023    const windows = (await $.env.get('OS')) === 'Windows_NT'
1024    useDrives(windows)
1025    home = posix(((await $.env.get('HOME')) || (await $.env.get('USERPROFILE')) || '').replace(/[\\/]+$/, ''))
1026    activityId = Math.max(activityId, ...(await activities($)).map(a => a.id))
1027    void (async () => {
1028      pointer = await finePointerOk($)
1029      try {
1030        const remote = Boolean((await $.env.get('SSH_CONNECTION')) || (await $.env.get('SSH_TTY')))
1031        noNerd = !remote && (windows || (await fontState($, 'f04eb')) !== 'ok')
1032      } catch {
1033        noNerd = true
1034      }
1035      await loadTheme($)
1036      themePoll?.cancel()
1037      themePoll = themeMtime ? $.clock.every(THEME_POLL_MS, () => void loadTheme($)) : null
1038      const t = await get($)
1039      if (t.flashOn) await patch($, () => ({ flash: [], flashDim: [], flashOn: false, flashTones: {} }))
1040      if (t.preview) await patch($, () => ({ preview: '', previewTop: 0 }))
1041      await setActivities($, cur => cur.map(a => (a.state === 'running' ? { ...a, state: 'failed', label: `${a.kind} interrupted` } : a)))
1042      const cwd = await cwdOf($)
1043      if (!t.root || t.nodes.length === 0 || (follow && t.root !== cwd)) await reset($, cwd)
1044      else if (!noDock) await $.ui.open({ id: PANE, title: `Files: ${t.root.split('/').pop() || t.root}` })
1045    })()
1046    return next(e)
1047  })
1048
1049  on('command.run', { command: 'filetree' }, async ($, e) => {
1050    // The layout checks are the terminal's: the desktop app docks the pane itself and
1051    // reports no fullscreen layout, so a session no terminal draws skips them.
1052    const terminal = await $.session.surfaces().then(s => s.includes('terminal'), () => true)
1053    if (terminal && !e.presentation.isFullscreen) return { text: 'filetree shows in the sidebar, which needs the fullscreen layout. Run /tui fullscreen, then /filetree.' }
1054    if (terminal && e.presentation.columns < 110) return { text: 'filetree shows in the sidebar, which needs a terminal at least 110 columns wide. Widen it, then run /filetree.' }
1055    noDock = false
1056    const arg = (e.args ?? '').trim()
1057    const cwd = await cwdOf($)
1058    follow = !arg
1059    const root = arg ? resolve(cwd, arg, home) : cwd
1060    await reset($, root, true)
1061    return { text: `File tree on ${shortPath(root)}${follow ? ' (follows the cwd)' : ''}.` }
1062  })
1063
1064  on('tool.call', async ($, e, next) => {
1065    if (e.tool !== 'Edit' && e.tool !== 'Write' && e.tool !== 'NotebookEdit' && e.tool !== 'Bash') return next(e)
1066    const command = e.tool === 'Bash' ? e.command : ''
1067    const cwd = e.tool === 'Bash' ? await cwdOf($) : ''
1068    const actions = gitActions(command)
1069    const quiet = !actions.length && readOnly(command)
1070    const since = await sinceNow($, e.tool === 'Bash' && !quiet)
1071    const before = actions.some(a => a.verb === 'commit') ? await get($) : null
1072    const head = before?.top ? await headOf($, before.root) : ''
1073    const pending: Pending | null = actions.length ? { actions, ids: await startGit($, actions), command, head } : null
1074    let result: Awaited<ReturnType<typeof next>>
1075    try {
1076      result = await next(e)
1077    } catch (err) {
1078      if (pending) await finishGit($, pending, failAll(pending))
1079      if (since.mark) void $.process.run(['rm', '-f', since.mark], { timeoutMs: 3_000 }).catch(() => undefined)
1080      throw err
1081    }
1082    if (pending && result.deny) {
1083      const ids = pending.ids
1084      void setActivities($, cur => cur.filter(a => !ids.includes(a.id)))
1085    }
1086    if (result.deny || (result.isError && e.tool !== 'Bash')) {
1087      if (since.mark) void $.process.run(['rm', '-f', since.mark], { timeoutMs: 3_000 }).catch(() => undefined)
1088      return result
1089    }
1090    if (e.tool === 'Bash') {
1091      const out: Partial<BuiltinToolResults['Bash']> = !result.isError && result.result && typeof result.result === 'object' ? result.result : {}
1092      const reads = showReads ? readTargets(command, cwd, typeof out.stdout === 'string' ? out.stdout : '', home) : []
1093      const job: Job = { actions: [], since, initRepo: actions.some(a => a.init), readOnly: quiet || result.isReadOnly === true }
1094      if (out.backgroundTaskId) background.set(out.backgroundTaskId, { p: pending, job, reads })
1095      else void (async () => {
1096        const results = pending ? await outcomes($, pending, !result.isError, out.gitOperation) : []
1097        if (pending) await finishGit($, pending, results)
1098        queuedReads.push(...reads)
1099        scheduleScan($, { ...job, actions: proven(pending, results) })
1100      })()
1101      if (follow && /(^|[;&|\s])(cd|pushd|popd)(\s|$)/.test(command)) $.clock.after(400, () => void followCwd($))
1102    } else {
1103      const file =
1104        'file_path' in e && typeof e.file_path === 'string'
1105          ? e.file_path
1106          : 'notebook_path' in e && typeof e.notebook_path === 'string'
1107            ? e.notebook_path
1108            : ''
1109      if (file) void touched($, [file], 'orange', showWrites)
1110    }
1111    return result
1112  })
1113
1114  on('tool.call', { tool: 'Read' }, async ($, e, next) => {
1115    const result = await next(e)
1116    if (result.deny || result.isError || e.tool !== 'Read' || !showReads) return result
1117    void touched($, [posix(e.file_path)], 'purple', true)
1118    return result
1119  })
1120
1121  on('ui.message', async ($, e, next) => {
1122    if (e.requestId !== PANE || e.element !== 'rows' || !e.data || typeof e.data !== 'object') return next(e)
1123    const data = e.data as { press?: unknown; key?: unknown; ctrl?: unknown; shift?: unknown; scrollTo?: unknown; copy?: unknown }
1124    void sync($)
1125    const t = await get($)
1126    if (typeof data.copy === 'string') {
1127      await copyPath($, data.copy, Boolean(data.shift), e.surface)
1128      return {}
1129    }
1130    if (typeof data.scrollTo === 'number') {
1131      const to = Math.round(Math.max(0, Math.min(1, data.scrollTo)) * view.max)
1132      if (to !== t.scroll) await patch($, () => ({ scroll: to }))
1133      return {}
1134    }
1135    if (typeof data.press === 'string') {
1136      const n = t.nodes.find(x => x.id === data.press)
1137      if (!n) return {}
1138      if (t.scroll === null) await patch($, () => ({ scroll: view.from }))
1139      if (data.ctrl || data.shift) await openNode($, n)
1140      else await press($, n)
1141      return {}
1142    }
1143    if (typeof data.key !== 'string') return {}
1144    if (t.preview) {
1145      const page = Math.max(1, previewRows - 2)
1146      const by: Record<string, number> = { up: -1, k: -1, down: 1, j: 1, pageup: -page, pagedown: page, home: -Infinity, end: Infinity }
1147      if (data.key === 'left' || data.key === 'h') await closePreview($)
1148      else if (data.key in by) await scrollPreview($, by[data.key] ?? 0)
1149      return {}
1150    }
1151    const rows = visibleRows(t)
1152    const at = rows.findIndex(r => r.node.id === t.cursor)
1153    const cur = rows[at]?.node
1154    const move = (d: number) => {
1155      const target = rows[Math.max(0, Math.min(rows.length - 1, (at < 0 ? 0 : at) + d))]
1156      return target ? patch($, () => ({ cursor: target.node.id, scroll: null })) : Promise.resolve()
1157    }
1158    if (data.key === 'up' || data.key === 'k') await move(-1)
1159    else if (data.key === 'down' || data.key === 'j') await move(1)
1160    else if (data.key === 'pageup') await move(-10)
1161    else if (data.key === 'pagedown') await move(10)
1162    else if (data.key === 'home') await move(-rows.length)
1163    else if (data.key === 'end') await move(rows.length)
1164    else if (cur && (data.key === 'y' || data.key === 'Y')) await copyPath($, cur.id, data.key === 'Y' || Boolean(data.shift), e.surface)
1165    else if (cur && (data.key === 'right' || data.key === 'l') && cur.kind === 'dir' && !t.expanded.includes(cur.id)) await toggle($, cur)
1166    else if (cur && (data.key === 'left' || data.key === 'h')) {
1167      if (cur.kind === 'dir' && t.expanded.includes(cur.id)) await toggle($, cur)
1168      else if (cur.parent !== t.root) await patch($, () => ({ cursor: cur.parent }))
1169    } else if (cur && data.key === 'return') await (cur.kind !== 'dir' ? openNode($, cur) : toggle($, cur))
1170    else if (cur && data.key === ' ') await toggle($, cur)
1171    return {}
1172  })
1173
1174  on('classic.SessionStart', async ($, e, next) => {
1175    const result = await next(e)
1176    if (e.source === 'clear' || e.source === 'resume' || e.source === 'fork') {
1177      void (async () => {
1178        await loadTheme($)
1179        const root = follow || !lastRoot ? await cwdOf($) : lastRoot
1180        const t = await get($)
1181        if (t.root !== root || t.nodes.length === 0) await reset($, root)
1182      })()
1183    }
1184    const gd = await gitDir($, posix(e.cwd))
1185    return gd ? { ...result, watchPaths: [...(result.watchPaths ?? []), join(gd, 'index'), join(gd, 'HEAD')] } : result
1186  })
1187
1188  on('classic.CwdChanged', async ($, e, next) => {
1189    const result = await next(e)
1190    void followCwd($)
1191    return result
1192  })
1193
1194  on('classic.FileChanged', async ($, e, next) => {
1195    const result = await next(e)
1196    if (/[\\/]\.git[\\/]|[\\/](index|HEAD)$/.test(e.file_path)) $.clock.after(300, () => void sync($, true))
1197    return result
1198  })
1199
1200  on('ui.focus', { component: 'Pane', requestId: PANE }, async ($, e, next) => {

1export const LINUX_LAUNCH = 'setsid -f -w "$@" </dev/null >/dev/null 2>&1 & p=$!; sleep 1; kill -0 "$p" 2>/dev/null && exit 0; wait "$p"'
2
3export const LINUX_OPEN = [
4  'set -f',
5  'f=$1',
6  'if command -v gio >/dev/null; then',
7  '  if [ -f "$f" ] && command -v file >/dev/null && encoding=$(file -b --mime-encoding -- "$f") && [ -n "$encoding" ] && [ "$encoding" != binary ]; then',
8  '    case $(gio info -a standard::content-type -- "$f" | sed -n \'s/.*standard::content-type: //p\') in',
9  '      video/* | audio/*)',
10  '        app=$(xdg-mime query default text/plain)',
11  '        IFS=:',
12  '        for dir in "${XDG_DATA_HOME:-$HOME/.local/share}" ${XDG_DATA_DIRS:-/usr/local/share:/usr/share}; do',
13  '          [ -n "$app" ] && [ -f "$dir/applications/$app" ] && exec gio launch "$dir/applications/$app" "$f"',
14  '        done',
15  '        echo "No text/plain desktop application found for $f" >&2',
16  '        exit 1',
17  '        ;;',
18  '    esac',
19  '  fi',
20  '  if (exec gio open "$f"); then exit 0; fi',
21  'fi',
22  'exec xdg-open "$f"',
23].join('\n')
24
25const WIN_OPEN = "$ErrorActionPreference = 'Stop'; [Diagnostics.Process]::Start([Diagnostics.ProcessStartInfo]@{ FileName = $env:PANE_OPEN_TARGET; UseShellExecute = $true }) | Out-Null"
26
27export function openCommand(os: 'linux' | 'darwin' | 'win32', target: string) {
28  const argv = os === 'linux'
29    ? ['sh', '-c', LINUX_LAUNCH, 'sh', 'sh', '-c', LINUX_OPEN, 'sh', target]
30    : os === 'darwin'
31      ? ['open', '--', target]
32      : ['powershell', '-NoProfile', '-NonInteractive', '-Command', WIN_OPEN]
33  return {
34    argv,
35    init: {
36      timeoutMs: 10_000,
37      ...(os === 'win32' ? { env: { PANE_OPEN_TARGET: /^[a-z][a-z0-9+.-]*:\/\//i.test(target) ? target : target.replace(/\//g, '\\') } } : {}),
38    },
39  }
40}
41
42function words(command: string): string[] {
43  const out: string[] = []
44  let word: string | null = null
45  let quote = ''
46  for (const ch of command) {
47    if (quote) {
48      if (ch === quote) quote = ''
49      else word = (word ?? '') + ch
50    } else if (ch === '"' || ch === "'") {
51      quote = ch
52      word ??= ''
53    } else if (/\s/.test(ch)) {
54      if (word !== null) out.push(word)
55      word = null
56    } else word = (word ?? '') + ch
57  }
58  if (word !== null) out.push(word)
59  return out
60}
61
62export function openWithCommand(command: string, path: string, dir: string): string[] | null {
63  const argv = words(command)
64  if (!argv.length) return null
65  const filled = argv.map(w => w.replace(/\{(path|dir)\}/g, (_, key) => (key === 'path' ? path : dir)))
66  return argv.some(w => w.includes('{path}')) ? filled : [...filled, path]
67}
68

1import { drivesOn, isAbsolute, posix } from './tree'
2
3export type GitAction = {
4  kind: string
5  verb: string
6  running: string
7  done: string
8  tone: string
9  icon: { nerd: string; plain: string }
10  init?: boolean
11}
12
13const ICON = {
14  commit: { nerd: '\u{f417}', plain: '●' },
15  push: { nerd: '\u{f0552}', plain: '↑' },
16  pull: { nerd: '\u{f0553}', plain: '↓' },
17  branch: { nerd: '\u{f418}', plain: '⑂' },
18  merge: { nerd: '\u{f419}', plain: '⑃' },
19  pr: { nerd: '\u{f407}', plain: '⇄' },
20  github: { nerd: '\u{f408}', plain: '◎' },
21  stash: { nerd: '\u{f01bc}', plain: '≡' },
22  undo: { nerd: '\u{f054c}', plain: '↶' },
23  tag: { nerd: '\u{f412}', plain: '⌖' },
24  git: { nerd: '\u{e702}', plain: '±' },
25}
26
27export const TONES: Record<string, { bright: string[]; dim: string[]; solid: string }> = {
28  orange: { bright: ['#f97316', '#fb923c', '#fdba74', '#ffedd5'], dim: ['#8a4316', '#a3562a', '#bd7444', '#d29267'], solid: '#f97316' },
29  green: { bright: ['#22c55e', '#4ade80', '#86efac', '#dcfce7'], dim: ['#14532d', '#166534', '#2f7a47', '#4f9a66'], solid: '#4ade80' },
30  teal: { bright: ['#14b8a6', '#2dd4bf', '#5eead4', '#ccfbf1'], dim: ['#0f5e57', '#16786f', '#2a9488', '#4fb3a8'], solid: '#2dd4bf' },
31  blue: { bright: ['#3b82f6', '#60a5fa', '#93c5fd', '#dbeafe'], dim: ['#1e3a8a', '#1d4ed8', '#3b6fd1', '#6b93dc'], solid: '#60a5fa' },
32  purple: { bright: ['#a855f7', '#c084fc', '#d8b4fe', '#f3e8ff'], dim: ['#581c87', '#6b21a8', '#8b47c4', '#a874d6'], solid: '#c084fc' },
33  cyan: { bright: ['#06b6d4', '#22d3ee', '#67e8f9', '#cffafe'], dim: ['#155e75', '#0e7490', '#2b8ea3', '#5aa9b8'], solid: '#22d3ee' },
34  red: { bright: ['#ef4444', '#f87171', '#fca5a5', '#fee2e2'], dim: ['#7f1d1d', '#991b1b', '#b54040', '#c96a6a'], solid: '#f87171' },
35}
36
37const GIT_VERBS: Record<string, Omit<GitAction, 'kind'>> = {
38  commit: { verb: 'commit', running: 'committing', done: 'committed', tone: 'green', icon: ICON.commit },
39  push: { verb: 'push', running: 'pushing', done: 'pushed', tone: 'teal', icon: ICON.push },
40  pull: { verb: 'pull', running: 'pulling', done: 'pulled', tone: 'blue', icon: ICON.pull },
41  fetch: { verb: 'fetch', running: 'fetching', done: 'fetched', tone: 'blue', icon: ICON.pull },
42  checkout: { verb: 'checkout', running: 'checking out', done: 'checked out', tone: 'blue', icon: ICON.branch },
43  switch: { verb: 'switch', running: 'switching', done: 'switched', tone: 'blue', icon: ICON.branch },
44  branch: { verb: 'branch', running: 'branching', done: 'branched', tone: 'blue', icon: ICON.branch },
45  merge: { verb: 'merge', running: 'merging', done: 'merged', tone: 'purple', icon: ICON.merge },
46  rebase: { verb: 'rebase', running: 'rebasing', done: 'rebased', tone: 'purple', icon: ICON.merge },
47  'cherry-pick': { verb: 'cherry-pick', running: 'cherry-picking', done: 'cherry-picked', tone: 'purple', icon: ICON.merge },
48  stash: { verb: 'stash', running: 'stashing', done: 'stashed', tone: 'orange', icon: ICON.stash },
49  reset: { verb: 'reset', running: 'resetting', done: 'reset', tone: 'red', icon: ICON.undo },
50  restore: { verb: 'restore', running: 'restoring', done: 'restored', tone: 'red', icon: ICON.undo },
51  revert: { verb: 'revert', running: 'reverting', done: 'reverted', tone: 'red', icon: ICON.undo },
52  add: { verb: 'add', running: 'staging', done: 'staged', tone: 'green', icon: ICON.git },
53  rm: { verb: 'rm', running: 'removing', done: 'removed', tone: 'red', icon: ICON.git },
54  mv: { verb: 'mv', running: 'moving', done: 'moved', tone: 'orange', icon: ICON.git },
55  tag: { verb: 'tag', running: 'tagging', done: 'tagged', tone: 'purple', icon: ICON.tag },
56  init: { verb: 'init', running: 'initialising', done: 'initialised', tone: 'green', icon: ICON.git, init: true },
57  clone: { verb: 'clone', running: 'cloning', done: 'cloned', tone: 'blue', icon: ICON.pull, init: true },
58}
59
60const GH_VERBS: Record<string, Omit<GitAction, 'kind'>> = {
61  'pr create': { verb: 'pr create', running: 'opening PR', done: 'opened PR', tone: 'purple', icon: ICON.pr },
62  'pr merge': { verb: 'pr merge', running: 'merging PR', done: 'merged PR', tone: 'purple', icon: ICON.merge },
63  'pr checkout': { verb: 'pr checkout', running: 'checking out PR', done: 'checked out PR', tone: 'blue', icon: ICON.pr },
64  'pr comment': { verb: 'pr comment', running: 'commenting on PR', done: 'commented on PR', tone: 'purple', icon: ICON.pr },
65  'pr review': { verb: 'pr review', running: 'reviewing PR', done: 'reviewed PR', tone: 'purple', icon: ICON.pr },
66  'repo clone': { verb: 'repo clone', running: 'cloning', done: 'cloned', tone: 'blue', icon: ICON.github, init: true },
67  'release create': { verb: 'release create', running: 'releasing', done: 'released', tone: 'purple', icon: ICON.tag },
68  'issue create': { verb: 'issue create', running: 'opening issue', done: 'opened issue', tone: 'purple', icon: ICON.github },
69}
70
71const READ_ONLY_GIT = new Set(['status', 'log', 'diff', 'show', 'blame', 'rev-parse', 'ls-files', 'grep', 'describe', 'config', 'remote', 'reflog', 'shortlog', 'help', 'version', 'check-ignore'])
72
73function segments(command: string, seps: string[] = []): string[][] {
74  const out: string[][] = []
75  let cur: string[] = []
76  let tok = ''
77  let quote = ''
78  let has = false
79  const endTok = () => {
80    if (has) cur.push(tok)
81    tok = ''
82    has = false
83  }
84  const endSeg = () => {
85    endTok()
86    if (cur.length) out.push(cur)
87    cur = []
88  }
89  for (let i = 0; i < command.length; i++) {
90    const ch = command[i] ?? ''
91    if (quote) {
92      if (ch === quote) quote = ''
93      else if (ch === '\\' && quote === '"' && i + 1 < command.length) tok += command[++i]
94      else tok += ch
95    } else if (ch === '"' || ch === "'") {
96      quote = ch
97      has = true
98    } else if (ch === '\\' && i + 1 < command.length) {
99      tok += command[++i]
100      has = true
101    } else if (ch === '#' && !has) {
102      while (i + 1 < command.length && command[i + 1] !== '\n') i++
103    } else if (ch === ' ' || ch === '\t') endTok()
104    else if (ch === '\n' || ch === ';') {
105      seps.push(';')
106      endSeg()
107    } else if (ch === '&' && (command[i - 1] === '>' || command[i + 1] === '>')) {
108      tok += ch
109      has = true
110    } else if (ch === '&' || ch === '|') {
111      const twice = command[i + 1] === ch
112      if (twice) i++
113      seps.push(twice ? ch + ch : ch)
114      endSeg()
115    } else {
116      tok += ch
117      has = true
118    }
119  }
120  endSeg()
121  if (!quote) return out
122  seps.push(';')
123  return command
124    .split(/&&|\|\||;|\||\n/)
125    .map(s => s.trim().split(/\s+/).filter(Boolean))
126    .filter(s => s.length > 0)
127}
128
129function stripGlobals(tokens: string[]): string[] {
130  const out = [...tokens]
131  if (out[0] === 'env') out.shift()
132  while (out.length && /^[A-Z_][A-Z0-9_]*=/.test(out[0] ?? '')) out.shift()
133  return out
134}
135
136function gitVerb(tokens: string[]): number {
137  let i = 1
138  while (i < tokens.length && (tokens[i] ?? '').startsWith('-')) {
139    if (tokens[i] === '-C' || tokens[i] === '-c') i++
140    i++
141  }
142  return i
143}
144
145function gitReadOnly(verb: string, rest: string[]): boolean {
146  if (!verb || READ_ONLY_GIT.has(verb)) return true
147  if (verb === 'stash') return ['list', 'show'].includes(rest[0] ?? '')
148  if (verb === 'branch') return rest.every(t => t.startsWith('-'))
149  if (verb === 'tag') return rest.length === 0 || rest.some(t => /^(-l|--list|-n\d*|--contains|--points-at|--merged|--no-merged|-v|--verify)$/.test(t))
150  return false
151}
152
153export function chainOf(command: string): { size: number; and: boolean } {
154  const seps: string[] = []
155  const size = segments(command, seps).length
156  return { size, and: seps.every(s => s === '&&') }
157}
158
159export function gitActions(command: string): GitAction[] {
160  const out: GitAction[] = []
161  for (const raw of segments(command)) {
162    const tokens = stripGlobals(raw)
163    const head = tokens[0]?.split('/').pop()
164    if (head === 'git') {
165      const i = gitVerb(tokens)
166      const verb = tokens[i] ?? ''
167      const rest = tokens.slice(i + 1)
168      if (gitReadOnly(verb, rest)) continue
169      const spec = verb === 'checkout' && rest.includes('--') ? GIT_VERBS.restore : GIT_VERBS[verb]
170      if (spec) out.push({ kind: `git ${verb}`, ...spec })
171    } else if (head === 'gh') {
172      const pair = `${tokens[1] ?? ''} ${tokens[2] ?? ''}`
173      const spec = GH_VERBS[pair]
174      if (spec) out.push({ kind: `gh ${pair}`, ...spec })
175    }
176  }
177  return out
178}
179
180export const BRANCH_ICON = ICON.branch
181
182const READERS = new Set(['rg', 'grep', 'egrep', 'fgrep', 'find', 'fd', 'fdfind', 'cat', 'head', 'tail', 'bat', 'less', 'more', 'ls', 'eza', 'tree', 'wc', 'sed', 'awk', 'jq'])
183const PATTERN_FIRST = new Set(['rg', 'grep', 'egrep', 'fgrep', 'sed', 'awk', 'jq'])
184const OUTPUT_PATHS = new Set(['rg', 'grep', 'egrep', 'fgrep', 'find', 'fd', 'fdfind'])
185
186function tidy(path: string): string {
187  const s = path.replace(/\/+$/, '')
188  return s === '' ? '/' : /^[A-Za-z]:$/.test(s) && isAbsolute(`${s}/`) ? `${s}/` : s
189}
190
191export function resolve(cwd: string, p: string, home = ''): string {
192  let path = posix(p)
193  if (home && (path === '~' || path.startsWith('~/'))) path = home + path.slice(1)
194  const drive = isAbsolute(path) && !path.startsWith('/') ? path.slice(0, 2) : ''
195  const parts = isAbsolute(path) ? [drive] : posix(cwd).replace(/\/+$/, '').split('/')
196  for (const seg of path.slice(drive.length).split('/')) {
197    if (!seg || seg === '.') continue
198    if (seg === '..') {
199      if (parts.length > 1) parts.pop()
200    } else parts.push(seg)
201  }
202  return tidy(parts.join('/'))
203}
204
205const WRITE_FLAGS = /^-(delete|exec|execdir|ok|okdir|fprint\w*|fls|x|X|-exec|-exec-batch)$/
206
207export function readOnly(command: string): boolean {
208  const bare = ` ${command}`.replace(/\d*>&\d/g, ' ').replace(/(\d*|&)>>?\s*\/dev\/null/g, ' ')
209  if (/[^>]>[^>&]|>>/.test(bare)) return false
210  return segments(command).every(raw => {
211    const tokens = stripGlobals(raw)
212    const head = tokens[0]?.split('/').pop() ?? ''
213    if (head === 'cd' || head === 'echo' || head === 'printf' || head === 'true' || head === 'pwd') return true
214    if (head === 'git') {
215      const i = gitVerb(tokens)
216      return gitReadOnly(tokens[i] ?? '', tokens.slice(i + 1))
217    }
218    if (head === 'sed') return !tokens.some(t => /^-i/.test(t))
219    if (head === 'find' || head === 'fd' || head === 'fdfind') return !tokens.some(t => WRITE_FLAGS.test(t))
220    return READERS.has(head)
221  })
222}
223
224export function readTargets(command: string, sessionCwd: string, stdout: string, home = ''): string[] {
225  let cwd = sessionCwd
226  const out = new Set<string>()
227  let listsPaths = false
228  for (const raw of segments(command)) {
229    const tokens = stripGlobals(raw).map(t => posix(t.replace(/^["']|["']$/g, '')))
230    const head = tokens[0]?.split('/').pop() ?? ''
231    if (head === 'cd' && tokens[1]) {
232      cwd = resolve(cwd, tokens[1], home)
233      continue
234    }
235    if (!READERS.has(head)) continue
236    if (head === 'sed' && tokens.some(t => /^-i/.test(t))) continue
237    if (OUTPUT_PATHS.has(head)) listsPaths = true
238    const args = tokens.slice(1)
239    let skipPattern = PATTERN_FIRST.has(head) && !args.some(t => t === '-e' || t === '-f' || t === '--files')
240    for (let i = 0; i < args.length; i++) {
241      const a = args[i] ?? ''
242      if (a.startsWith('-')) {
243        if (/^-(e|f|g|t|T|m|A|B|C|-glob|-type|-max-count|name|iname|maxdepth|mindepth)$/.test(a)) i++
244        continue
245      }
246      if (skipPattern) {
247        skipPattern = false
248        continue
249      }
250      if (/[*?<>|]/.test(a)) continue
251      out.add(resolve(cwd, a, home))
252    }
253  }
254  if (listsPaths) {
255    for (const line of stdout.split('\n').slice(0, 400)) {
256      const path = posix(line).match(drivesOn() ? /^((?:[A-Za-z]:)?[^:\0]+?)(?::\d+[:-]|$|:)/ : /^([^:\0]+?)(?::\d+[:-]|$|:)/)?.[1]?.trim()
257      if (path && !path.includes(' ')) out.add(resolve(cwd, path, home))
258    }
259  }
260  return [...out].slice(0, 60)
261}
262

1import type { ClientModule } from 'claude-code'
2
3export type Seg = { t: string; c?: string; b?: boolean; s?: boolean; i?: boolean; sh?: string; dim?: boolean; one?: boolean; spin?: boolean; bg?: string; tab?: string }
4export type RowSpec = { id: string; left: Seg[]; right: Seg[] }
5export type RowsProps = {
6  rows: RowSpec[]
7  active: string
8  activeBg: string
9  hoverBg: string
10  tones: Record<string, { bright: string[]; dim: string[] }>
11  spinner?: string[]
12  pointer?: boolean
13  bar?: { pos: number; size: number; thumb: string; track: string }
14  preview?: { text: string; path: string; startLine: number; markdown: boolean }
15}
16type Local = { hover: number; phase: number; drag: boolean; ref: { stop?: () => void; unpoint?: () => void } }
17
18const TICK_MS = 90
19const FRAMES = ['⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏']
20
21function shimmer(i: number, phase: number, len: number, palette: string[]): string {
22  const band = ((phase * 1.6) % (len + 8)) - 4
23  const d = Math.abs(i - band)
24  return palette[d < 0.8 ? 3 : d < 1.8 ? 2 : d < 2.8 ? 1 : 0] ?? palette[0] ?? '#f97316'
25}
26
27const Rows: ClientModule<RowsProps, Local> = (props, surface) => {
28  const { Box, Text } = surface.elements
29  let state = surface.state
30  if (state === undefined) {
31    state = { hover: -1, phase: 0, drag: false, ref: {} }
32    surface.setState(state)
33  }
34  const lit = props.rows.some(r => r.left.some(s => s.sh || s.spin) || r.right.some(s => s.sh || s.spin))
35  if (lit && !state.ref.stop) {
36    state.ref.stop = surface.every(TICK_MS, () => {
37      const cur = surface.state
38      if (cur) surface.setState({ ...cur, phase: cur.phase + 1 })
39    })
40  } else if (!lit && state.ref.stop) {
41    state.ref.stop()
42    state.ref.stop = undefined
43  }
44  if (props.pointer === false) {
45    state.ref.unpoint?.()
46    state.ref.unpoint = undefined
47  } else state.ref.unpoint = surface.onPointer(e => {
48    const cur = surface.state ?? state
49    const span = Math.max(1, props.rows.length - 1)
50    const onBar = Boolean(props.bar) && e.x >= surface.columns - 1
51    if (props.bar && (cur.drag || (onBar && e.type === 'down' && (e.button ?? 'left') === 'left'))) {
52      if (e.type === 'up' || e.type === 'leave') {
53        surface.setState({ ...cur, drag: false })
54        return
55      }
56      if (e.type === 'down' || e.type === 'move') {
57        if (!cur.drag) surface.setState({ ...cur, drag: true, hover: -1 })
58        surface.post({ scrollTo: Math.max(0, Math.min(1, e.y / span)) })
59        return
60      }
61    }
62    if (e.type === 'leave' || e.y < 0 || e.y >= props.rows.length) {
63      if (cur.hover !== -1) surface.setState({ ...cur, hover: -1 })
64      return
65    }
66    if (e.type === 'move' && !e.button && cur.hover !== e.y) surface.setState({ ...cur, hover: e.y })
67    const row = props.rows[e.y]
68    if (e.type === 'down' && e.button === 'right' && row?.id) {
69      surface.post({ copy: row.id, shift: Boolean(e.shift) })
70      return
71    }
72    if (e.type !== 'down' || (e.button ?? 'left') !== 'left' || !row) return
73    let x = 0
74    for (const seg of row.left) {
75      const w = [...seg.t].length
76      if (seg.tab && e.x >= x && e.x < x + w) {
77        surface.post({ tab: seg.tab })
78        return
79      }
80      x += w
81    }
82    if (row.id) surface.post({ press: row.id, ctrl: Boolean(e.ctrl), shift: Boolean(e.shift) })
83  })
84  surface.onKey(e => surface.post({ key: e.key, ctrl: Boolean(e.ctrl), shift: Boolean(e.shift) }))
85  // The preview draws in this same element, so the focus a click gave the tree stays put.
86  if (props.preview) {
87    const { Markdown, Code } = surface.elements
88    const p = props.preview
89    return p.markdown ? <Markdown text={p.text} /> : <Code source={p.text} path={p.path} startLine={p.startLine} wrap="truncate-end" />
90  }
91  const frames = props.spinner?.length ? props.spinner : FRAMES
92  const draw = (s: Seg) => {
93    if (s.spin) {
94      return (
95        <Text color={s.c} bold={s.b}>
96          {s.t + (frames[state.phase % frames.length] ?? '')}
97        </Text>
98      )
99    }
100    const palette = s.sh ? (s.dim ? props.tones[s.sh]?.dim : props.tones[s.sh]?.bright) : undefined
101    if (!palette) {
102      return (
103        <Text color={s.c} backgroundColor={s.bg} bold={s.b} strikethrough={s.s} italic={s.i}>
104          {s.t}
105        </Text>
106      )
107    }
108    if (s.one) {
109      return (
110        <Text color={shimmer(-1, state.phase, s.t.length, palette)}>
111          {s.t}
112        </Text>
113      )
114    }
115    const chars = [...s.t]
116    return (
117      <Text bold={s.b}>
118        {chars.map((ch, i) => (
119          <Text color={shimmer(i, state.phase, chars.length, palette)}>{ch}</Text>
120        ))}
121      </Text>
122    )
123  }
124  return (
125    <Box flexDirection="column">
126      {props.rows.map((r, i) => (
127        <Box
128          flexDirection="row"
129          height={1}
130          overflow="hidden"
131          backgroundColor={r.id && r.id === props.active ? props.activeBg : r.id && i === state.hover ? props.hoverBg : undefined}
132        >
133          <Box flexShrink={1} overflow="hidden">
134            {r.left.map(draw)}
135          </Box>
136          <Box flexGrow={1} />
137          {r.right.map(draw)}
138          {props.bar && (
139            <Text color={i >= props.bar.pos && i < props.bar.pos + props.bar.size ? props.bar.thumb : props.bar.track}>
140              {i >= props.bar.pos && i < props.bar.pos + props.bar.size ? '┃' : '│'}
141            </Text>
142          )}
143        </Box>
144      ))}
145    </Box>
146  )
147}
148
149export default Rows
150

1import type { FileNode } from '../types'
2
3const cp = (n: number) => String.fromCodePoint(n)
4
5export const CHEVRON_OPEN = cp(0xf47c)
6export const CHEVRON_CLOSED = cp(0xf460)
7
8const NAMES: Record<string, number> = {
9  'agents.md': 0xf0354,
10  'changelog.md': 0xf0354,
11  'contributing.md': 0xf0354,
12  'todo.md': 0xf0354,
13  'readme.md': 0xf0354,
14  license: 0xe60a,
15  dockerfile: 0xf0868,
16  makefile: 0xf1064,
17  'cmakelists.txt': 0xf1064,
18  justfile: 0xf05b7,
19  gemfile: 0xf0d2d,
20  rakefile: 0xf0d2d,
21  'cargo.toml': 0xe6b2,
22  'cargo.lock': 0xe6b2,
23  'pyproject.toml': 0xe6b2,
24  'requirements.txt': 0xf160e,
25  'go.mod': 0xf0afa,
26  'go.sum': 0xf07d3,
27  'package.json': 0xf0626,
28  'package-lock.json': 0xf0626,
29  'tsconfig.json': 0xf0626,
30  '.prettierrc': 0xf0626,
31  '.eslintrc': 0xf0626,
32  'pnpm-lock.yaml': 0xe6a8,
33  'yarn.lock': 0xe6a8,
34  '.gitignore': 0xf02a2,
35  '.gitmodules': 0xf0493,
36  '.editorconfig': 0xe652,
37}
38
39const EXTS: Record<string, number> = {
40  lua: 0xe620,
41  py: 0xe606,
42  pyi: 0xe606,
43  js: 0xe60c,
44  mjs: 0xe60c,
45  cjs: 0xe60c,
46  ts: 0xe628,
47  jsx: 0xe625,
48  tsx: 0xe7ba,
49  json: 0xe60b,
50  jsonc: 0xe60b,
51  yaml: 0xe6a8,
52  yml: 0xe6a8,
53  sh: 0xe795,
54  bash: 0xe795,
55  zsh: 0xe795,
56  fish: 0xe795,
57  md: 0xf0354,
58  markdown: 0xf0354,
59  css: 0xe6b8,
60  scss: 0xf031c,
61  html: 0xe736,
62  htm: 0xe736,
63  go: 0xe627,
64  rs: 0xe68b,
65  rb: 0xe791,
66  php: 0xe608,
67  java: 0xe738,
68  cs: 0xf031b,
69  sql: 0xe706,
70  graphql: 0xf20e,
71  gql: 0xf20e,
72  xml: 0xf05c0,
73  toml: 0xe6b2,
74  ini: 0xf0bc2,
75  conf: 0xf0493,
76  pdf: 0xeaeb,
77  svg: 0xf0721,
78  jpg: 0xf0225,
79  jpeg: 0xf0225,
80  png: 0xe60d,
81  gif: 0xf0d78,
82  webp: 0xf021f,
83  mp4: 0xf022b,
84  mkv: 0xf022b,
85  mov: 0xf022b,
86  mp3: 0xf0223,
87  wav: 0xf0223,
88  flac: 0xf0223,
89  zip: 0xf05c4,
90  gz: 0xf05c4,
91  xz: 0xf05c4,
92  tar: 0xf05c4,
93  qml: 0xf375,
94  cpp: 0xe61d,
95  cc: 0xe61d,
96  cxx: 0xe61d,
97  c: 0xe61e,
98  h: 0xf0af5,
99  hpp: 0xf0af5,
100  vue: 0xe6a0,
101  svelte: 0xe697,
102  csv: 0xe64a,
103  txt: 0xf09aa,
104}
105
106export function fileIcon(n: FileNode, open: boolean, isRepo: boolean): string {
107  if (n.kind === 'link') return cp(0xf481)
108  if (n.kind === 'dir') return cp(isRepo ? 0xf02a2 : open ? 0xe5fe : 0xe5ff)
109  const lower = n.name.toLowerCase()
110  const named = NAMES[lower]
111  if (named) return cp(named)
112  const dot = lower.lastIndexOf('.')
113  const ext = dot >= 0 ? lower.slice(dot + 1) : ''
114  return cp(EXTS[ext] ?? 0xf0214)
115}
116
117export const GIT_COLOR: Record<string, string> = {
118  A: '#98c379',
119  '?': '#98c379',
120  R: '#61afef',
121  C: '#61afef',
122  M: '#e5c07b',
123  T: '#e5c07b',
124}
125
126const PRIORITY = ['U', 'D', 'M', 'T', 'R', 'C', 'A', '?']
127
128export function stronger(a: string | undefined, b: string): string {
129  if (!a) return b
130  return PRIORITY.indexOf(b) < PRIORITY.indexOf(a) ? b : a
131}
132

1import type { Branch, FileNode, FileTree, Theme } from '../types'
2import { stronger } from './icons'
3
4export type Entry = { name: string; kind: 'file' | 'dir' | 'other'; mtimeMs: number; size: number; isLink: boolean }
5export type Row = { node: FileNode; depth: number; open: boolean }
6
7const collator = new Intl.Collator(undefined, { numeric: true, sensitivity: 'base' })
8
9export const DEFAULT_THEME: Theme = {
10  fg: '',
11  accent: '#5b9bd5',
12  muted: '#808a96',
13  urgent: '#d0605e',
14  selection: '#6b7280',
15  bg: '',
16}
17
18export function emptyTree(root: string): FileTree {
19  return {
20    root,
21    nodes: [],
22    expanded: [],
23    cursor: '',
24    selected: '',
25    query: '',
26    showHidden: true,
27    showSize: false,
28    dirSizes: {},
29    git: {},
30    diff: {},
31    ignored: [],
32    untrackedDirs: [],
33    top: '',
34    prefix: '',
35    branch: null,
36    counts: {},
37    flash: [],
38    flashDim: [],
39    flashOn: false,
40    flashTones: {},
41    scroll: null,
42    preview: '',
43    previewTop: 0,
44  }
45}
46
47export function parseTheme(toml: string): Theme {
48  const get = (k: string) => toml.match(new RegExp(`^${k}\\s*=\\s*"(#[0-9a-fA-F]{6})"`, 'm'))?.[1]
49  return {
50    fg: get('foreground') ?? get('color7') ?? DEFAULT_THEME.fg,
51    accent: get('accent') ?? get('color4') ?? DEFAULT_THEME.accent,
52    muted: get('muted') ?? get('color8') ?? DEFAULT_THEME.muted,
53    urgent: get('red') ?? get('color1') ?? DEFAULT_THEME.urgent,
54    selection: get('selection') ?? DEFAULT_THEME.selection,
55    bg: get('dark_background') ?? get('background') ?? DEFAULT_THEME.bg,
56  }
57}
58
59export function join(dir: string, name: string): string {
60  return dir.endsWith('/') ? dir + name : `${dir}/${name}`
61}
62
63let drives = false
64
65export function dirname(path: string): string {
66  if (drives && /^[A-Za-z]:\/[^/]*$/.test(path)) return path.slice(0, 3)
67  const i = path.lastIndexOf('/')
68  return i <= 0 ? '/' : path.slice(0, i)
69}
70
71export function useDrives(on: boolean): void {
72  drives = on
73}
74
75export function drivesOn(): boolean {
76  return drives
77}
78
79export function posix(path: string): string {
80  if (!drives) return path
81  return path.replace(/\\/g, '/').replace(/^\/([A-Za-z])(\/|$)/, (_, d: string) => `${d.toUpperCase()}:/`)
82}
83
84export function dropBelow(nodes: FileNode[], dirs: string[]): FileNode[] {
85  if (dirs.length === 0) return nodes
86  const under = (id: string) => dirs.some(d => id !== d && inside(d, id))
87  const gone = new Set(dirs)
88  return nodes.filter(n => !under(n.id)).map(n => (gone.has(n.id) && n.loaded ? { ...n, loaded: false } : n))
89}
90
91export function isAbsolute(path: string): boolean {
92  return path.startsWith('/') || (drives && /^[A-Za-z]:\//.test(path))
93}
94
95export function inside(root: string, path: string): boolean {
96  return path === root || path.startsWith(root.endsWith('/') ? root : `${root}/`)
97}
98
99export function toNodes(dir: string, list: Entry[]): FileNode[] {
100  return list
101    .map(e => ({
102      id: join(dir, e.name),
103      parent: dir,
104      name: e.name,
105      kind: e.isLink ? ('link' as const) : e.kind === 'dir' ? ('dir' as const) : ('file' as const),
106      hidden: e.name.startsWith('.'),
107      mtime: e.mtimeMs,
108      size: e.size,
109      loaded: false,
110    }))
111    .sort((a, b) => (a.kind === 'dir' ? 0 : 1) - (b.kind === 'dir' ? 0 : 1) || collator.compare(a.name, b.name))
112}
113
114export function replaceChildren(nodes: FileNode[], listed: Map<string, FileNode[]>): FileNode[] {
115  if (listed.size === 0) return nodes
116  const keep = new Map<string, FileNode>()
117  for (const n of nodes) if (listed.has(n.parent)) keep.set(n.id, n)
118  const freshIds = new Set<string>()
119  for (const kids of listed.values()) for (const k of kids) freshIds.add(k.id)
120  const gone = new Set([...keep.keys()].filter(id => !freshIds.has(id)))
121  const under = (id: string) => {
122    if (gone.size === 0) return false
123    for (let dir = dirname(id), prev = id; dir !== prev; prev = dir, dir = dirname(dir)) if (gone.has(dir)) return true
124    return false
125  }
126  const fresh: FileNode[] = []
127  for (const kids of listed.values()) {
128    for (const k of kids) {
129      if (under(k.id)) continue
130      const old = keep.get(k.id)
131      fresh.push(old && old.kind === 'dir' && k.kind === 'dir' ? { ...k, loaded: old.loaded } : k)
132    }
133  }
134  const out = nodes.filter(n => !listed.has(n.parent) && !under(n.id))
135  return [...out.map(n => (listed.has(n.id) ? { ...n, loaded: true } : n)), ...fresh]
136}
137
138export type GitStatus = {
139  git: Record<string, string>
140  ignored: string[]
141  untrackedDirs: string[]
142  branch: Branch | null
143  files: Record<string, Change>
144}
145
146export type Change = 'new' | 'mod' | 'del'
147
148export function parseBranch(record: string): Branch {
149  const body = record.replace(/^## /, '')
150  if (body.startsWith('HEAD (no branch)')) return { head: 'detached', upstream: '', ahead: 0, behind: 0 }
151  const head = body.match(/^(?:No commits yet on |Initial commit on )?(.+?)(?:\.\.\.|\s|$)/)?.[1] ?? body
152  const upstream = body.match(/\.\.\.(\S+)/)?.[1] ?? ''
153  const ahead = Number(body.match(/ahead (\d+)/)?.[1] ?? 0)
154  const behind = Number(body.match(/behind (\d+)/)?.[1] ?? 0)
155  return { head, upstream, ahead, behind }
156}
157
158export function mapper(root: string, prefix: string): (rel: string) => string | null {
159  return rel => (rel.startsWith(prefix) ? join(root, rel.slice(prefix.length).replace(/\/$/, '')).replace(/\/$/, '') : null)
160}
161
162export function parseGit(stdout: string, root: string, prefix: string): GitStatus {
163  const map = mapper(root, prefix)
164  const git: Record<string, string> = {}
165  const ignored: string[] = []
166  const untrackedDirs: string[] = []
167  const files: Record<string, Change> = {}
168  let branch: Branch | null = null
169  const parts = stdout.split('\0')
170  for (let i = 0; i < parts.length; i++) {
171    const rec = parts[i] ?? ''
172    if (rec.startsWith('## ')) {
173      branch = parseBranch(rec)
174      continue
175    }
176    if (rec.length < 4) continue
177    const xy = rec.slice(0, 2)
178    const raw = rec.slice(3)
179    if (xy[0] === 'R' || xy[0] === 'C') i++
180    const path = map(raw)
181    if (!path) continue
182    if (xy === '!!') {
183      ignored.push(path)
184      continue
185    }
186    if (xy === '??' && raw.endsWith('/')) untrackedDirs.push(path)
187    else files[path] = xy === '??' || (xy.includes('A') && !xy.includes('D')) ? 'new' : xy.includes('D') && !/U/.test(xy) ? 'del' : 'mod'
188    const letter =
189      xy === '??'
190        ? '?'
191        : /U/.test(xy) || xy === 'AA' || xy === 'DD'
192          ? 'U'
193          : (['D', 'M', 'R', 'C', 'A', 'T'].find(c => xy.includes(c)) ?? '')
194    if (!letter) continue
195    git[path] = stronger(git[path], letter)
196    let dir = dirname(path)
197    while (dir.length >= root.length && dir !== '/') {
198      git[dir] = stronger(git[dir], letter)
199      if (dir === root) break
200      dir = dirname(dir)
201    }
202  }
203  return { git, ignored, untrackedDirs, branch, files }
204}
205
206export function parseNumstat(stdout: string, root: string, prefix: string, into: Record<string, [number, number]>): void {
207  const map = mapper(root, prefix)
208  const parts = stdout.split('\0')
209  for (let i = 0; i < parts.length; i++) {
210    const rec = parts[i] ?? ''
211    if (!rec) continue
212    const m = rec.match(/^(-|\d+)\t(-|\d+)\t(.*)$/s)
213    if (!m) continue
214    let path = m[3] ?? ''
215    if (path === '') {
216      i += 2
217      path = parts[i] ?? ''
218    }
219    if (!path) continue
220    const add = m[1] === '-' ? 0 : Number(m[1])
221    const del = m[2] === '-' ? 0 : Number(m[2])
222    const abs = map(path)
223    if (!abs) continue
224    const prev = into[abs] ?? [0, 0]
225    into[abs] = [prev[0] + add, prev[1] + del]
226  }
227}
228
229export function rollUp(diff: Record<string, [number, number]>, root: string): Record<string, [number, number]> {
230  const out: Record<string, [number, number]> = { ...diff }
231  for (const [path, [add, del]] of Object.entries(diff)) {
232    let dir = dirname(path)
233    while (dir.length >= root.length && dir !== '/') {
234      const prev = out[dir] ?? [0, 0]
235      out[dir] = [prev[0] + add, prev[1] + del]
236      if (dir === root) break
237      dir = dirname(dir)
238    }
239  }
240  return out
241}
242
243export function rollCounts(files: Record<string, Change>, root: string): Record<string, [number, number, number]> {
244  const out: Record<string, [number, number, number]> = {}
245  const slot = { new: 0, mod: 1, del: 2 } as const
246  for (const [path, change] of Object.entries(files)) {
247    let dir = dirname(path)
248    while (dir.length >= root.length && dir !== '/') {
249      const cur = out[dir] ?? [0, 0, 0]
250      cur[slot[change]] += 1
251      out[dir] = cur
252      if (dir === root) break
253      dir = dirname(dir)
254    }
255  }
256  return out
257}
258
259export function underAny(id: string, set: Set<string>, root: string): boolean {
260  if (set.size === 0) return false
261  let cur = id
262  while (cur.length >= root.length) {
263    if (set.has(cur)) return true
264    const up = dirname(cur)
265    if (up === cur) break
266    cur = up
267  }
268  return false
269}
270
271export function ancestorsOf(id: string, root: string): string[] {
272  const out: string[] = []
273  if (!root) return out
274  for (let dir = dirname(id), prev = id; dir !== prev && dir !== root && inside(root, dir); prev = dir, dir = dirname(dir)) out.push(dir)
275  return out
276}
277
278export function relative(root: string, path: string): string {
279  return path === root ? '' : path.slice(root.endsWith('/') ? root.length : root.length + 1)
280}
281
282export function visibleRows(t: FileTree): Row[] {
283  const kids = new Map<string, FileNode[]>()
284  for (const n of t.nodes) {
285    if (!t.showHidden && n.hidden) continue
286    const list = kids.get(n.parent)
287    if (list) list.push(n)
288    else kids.set(n.parent, [n])
289  }
290  const q = t.query.trim().toLowerCase()
291  let keep: Set<string> | null = null
292  if (q) {
293    keep = new Set()
294    for (const n of t.nodes) {
295      if (!relative(t.root, n.id).toLowerCase().includes(q)) continue
296      keep.add(n.id)
297      for (const a of ancestorsOf(n.id, t.root)) keep.add(a)
298    }
299  }
300  const open = new Set(t.expanded)
301  const rows: Row[] = []
302  const walk = (dir: string, depth: number) => {
303    for (const n of kids.get(dir) ?? []) {
304      if (keep && !keep.has(n.id)) continue
305      const isOpen = n.kind === 'dir' && (keep ? kids.has(n.id) : open.has(n.id))
306      rows.push({ node: n, depth, open: isOpen })
307      if (isOpen) walk(n.id, depth + 1)
308    }
309  }
310  walk(t.root, 0)
311  return rows
312}
313
314export function stamp(ms: number): string {
315  if (!ms) return ''
316  const d = new Date(ms)
317  const p = (v: number) => String(v).padStart(2, '0')
318  return `${d.getFullYear()}-${p(d.getMonth() + 1)}-${p(d.getDate())} ${p(d.getHours())}:${p(d.getMinutes())}`
319}
320
321export function formatSize(bytes: number): string {
322  if (bytes < 0) return '?'
323  if (bytes < 1024) return `${bytes} B`
324  const units = ['K', 'M', 'G', 'T']
325  let v = bytes / 1024
326  let i = 0
327  while (v >= 1024 && i < units.length - 1) {
328    v /= 1024
329    i++
330  }
331  return `${v < 100 ? v.toFixed(1) : Math.round(v)} ${units[i]}`
332}
333

1export type FileNode = {
2  id: string
3  parent: string
4  name: string
5  kind: 'dir' | 'file' | 'link'
6  hidden: boolean
7  mtime: number
8  size: number
9  loaded: boolean
10}
11
12export type Branch = {
13  head: string
14  upstream: string
15  ahead: number
16  behind: number
17}
18
19export type Activity = {
20  id: number
21  kind: string
22  label: string
23  state: 'running' | 'done' | 'failed'
24  detail: string
25  at: number
26  tone: string
27  nerd: string
28  plain: string
29}
30
31export type FileTree = {
32  root: string
33  nodes: FileNode[]
34  expanded: string[]
35  cursor: string
36  selected: string
37  query: string
38  showHidden: boolean
39  showSize: boolean
40  dirSizes: Record<string, number>
41  git: Record<string, string>
42  diff: Record<string, [number, number]>
43  ignored: string[]
44  untrackedDirs: string[]
45  top: string
46  prefix: string
47  branch: Branch | null
48  counts: Record<string, [number, number, number]>
49  flash: string[]
50  flashDim: string[]
51  flashOn: boolean
52  flashTones: Record<string, string>
53  scroll: number | null
54  preview: string
55  previewTop: number
56}
57
58export type Theme = {
59  fg: string
60  accent: string
61  muted: string
62  urgent: string
63  selection: string
64  bg: string
65}
66
67declare module 'claude-code' {
68  interface PluginState {
69    filetree: {
70      tree: FileTree
71      theme: Theme
72      activity: Activity[]
73    }
74  }
75}
76