1use anyhow::{anyhow, bail, Context, Result};
2use loro::{Container, ExportMode, LoroDoc, LoroMap, PeerID, ValueOrContainer};
3use serde::{Deserialize, Serialize};
4use serde_json::Value;
5use std::collections::BTreeMap;
6use std::fmt;
7use std::fs::{self, File, OpenOptions};
8use std::io::Write;
9use std::path::{Path, PathBuf};
10use ulid::Ulid;
11
12pub const PROJECT_ENV: &str = "TD_PROJECT";
13
14const PROJECTS_DIR: &str = "projects";
15const CHANGES_DIR: &str = "changes";
16const BINDINGS_FILE: &str = "bindings.json";
17const BASE_FILE: &str = "base.loro";
18const TMP_SUFFIX: &str = ".tmp";
19const SCHEMA_VERSION: u32 = 1;
20
21/// Current UTC time in ISO 8601 format.
22pub fn now_utc() -> String {
23 chrono::Utc::now().format("%Y-%m-%dT%H:%M:%SZ").to_string()
24}
25
26/// Lifecycle state for a task.
27#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize)]
28#[serde(rename_all = "snake_case")]
29pub enum Status {
30 Open,
31 InProgress,
32 Closed,
33}
34
35impl Status {
36 fn as_str(self) -> &'static str {
37 match self {
38 Status::Open => "open",
39 Status::InProgress => "in_progress",
40 Status::Closed => "closed",
41 }
42 }
43
44 fn parse(raw: &str) -> Result<Self> {
45 match raw {
46 "open" => Ok(Self::Open),
47 "in_progress" => Ok(Self::InProgress),
48 "closed" => Ok(Self::Closed),
49 _ => bail!("invalid status '{raw}'"),
50 }
51 }
52}
53
54/// Priority for task ordering.
55#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize)]
56#[serde(rename_all = "snake_case")]
57pub enum Priority {
58 High,
59 Medium,
60 Low,
61}
62
63impl Priority {
64 fn as_str(self) -> &'static str {
65 match self {
66 Priority::High => "high",
67 Priority::Medium => "medium",
68 Priority::Low => "low",
69 }
70 }
71
72 fn parse(raw: &str) -> Result<Self> {
73 match raw {
74 "high" => Ok(Self::High),
75 "medium" => Ok(Self::Medium),
76 "low" => Ok(Self::Low),
77 _ => bail!("invalid priority '{raw}'"),
78 }
79 }
80
81 pub fn score(self) -> i32 {
82 match self {
83 Priority::High => 1,
84 Priority::Medium => 2,
85 Priority::Low => 3,
86 }
87 }
88}
89
90/// Estimated effort for a task.
91#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize)]
92#[serde(rename_all = "snake_case")]
93pub enum Effort {
94 Low,
95 Medium,
96 High,
97}
98
99impl Effort {
100 fn as_str(self) -> &'static str {
101 match self {
102 Effort::Low => "low",
103 Effort::Medium => "medium",
104 Effort::High => "high",
105 }
106 }
107
108 fn parse(raw: &str) -> Result<Self> {
109 match raw {
110 "low" => Ok(Self::Low),
111 "medium" => Ok(Self::Medium),
112 "high" => Ok(Self::High),
113 _ => bail!("invalid effort '{raw}'"),
114 }
115 }
116
117 pub fn score(self) -> i32 {
118 match self {
119 Effort::Low => 1,
120 Effort::Medium => 2,
121 Effort::High => 3,
122 }
123 }
124}
125
126/// A stable task identifier backed by a ULID.
127#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Serialize)]
128#[serde(transparent)]
129pub struct TaskId(String);
130
131impl TaskId {
132 pub fn new(id: Ulid) -> Self {
133 Self(id.to_string())
134 }
135
136 pub fn parse(raw: &str) -> Result<Self> {
137 let id = Ulid::from_string(raw).with_context(|| format!("invalid task id '{raw}'"))?;
138 Ok(Self::new(id))
139 }
140
141 pub fn as_str(&self) -> &str {
142 &self.0
143 }
144
145 pub fn short(&self) -> String {
146 format!("td-{}", &self.0[self.0.len() - 7..])
147 }
148
149 /// Return a display-friendly short ID from a raw ULID string.
150 pub fn display_id(raw: &str) -> String {
151 let n = raw.len();
152 if n > 7 {
153 format!("td-{}", &raw[n - 7..])
154 } else {
155 format!("td-{raw}")
156 }
157 }
158}
159
160impl fmt::Display for TaskId {
161 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
162 write!(f, "{}", self.short())
163 }
164}
165
166/// A task log entry embedded in a task record.
167#[derive(Debug, Clone, Serialize)]
168pub struct LogEntry {
169 pub id: TaskId,
170 pub timestamp: String,
171 pub message: String,
172}
173
174/// Hydrated task data from the CRDT document.
175#[derive(Debug, Clone, Serialize)]
176pub struct Task {
177 pub id: TaskId,
178 pub title: String,
179 pub description: String,
180 #[serde(rename = "type")]
181 pub task_type: String,
182 pub priority: Priority,
183 pub status: Status,
184 pub effort: Effort,
185 pub parent: Option<TaskId>,
186 pub created_at: String,
187 pub updated_at: String,
188 pub deleted_at: Option<String>,
189 pub labels: Vec<String>,
190 pub blockers: Vec<TaskId>,
191 pub logs: Vec<LogEntry>,
192}
193
194/// Result type for partitioning blockers by task state.
195#[derive(Debug, Default, Clone, Serialize)]
196pub struct BlockerPartition {
197 pub open: Vec<TaskId>,
198 pub resolved: Vec<TaskId>,
199}
200
201#[derive(Debug, Default, Clone, Serialize, Deserialize)]
202struct BindingsFile {
203 #[serde(default)]
204 bindings: BTreeMap<String, String>,
205}
206
207/// Storage wrapper around one project's Loro document and disk layout.
208#[derive(Debug, Clone)]
209pub struct Store {
210 root: PathBuf,
211 project: String,
212 doc: LoroDoc,
213}
214
215impl Store {
216 pub fn init(root: &Path, project: &str) -> Result<Self> {
217 validate_project_name(project)?;
218 let project_dir = project_dir(root, project);
219 if project_dir.exists() {
220 bail!("project '{project}' already exists");
221 }
222 fs::create_dir_all(project_dir.join(CHANGES_DIR))?;
223
224 let doc = LoroDoc::new();
225 doc.set_peer_id(load_or_create_device_peer_id(root)?)?;
226 doc.get_map("tasks");
227
228 let meta = doc.get_map("meta");
229 meta.insert("schema_version", SCHEMA_VERSION as i64)?;
230 meta.insert("project_id", Ulid::new().to_string())?;
231 meta.insert("created_at", now_utc())?;
232
233 let snapshot = doc
234 .export(ExportMode::Snapshot)
235 .context("failed to export initial loro snapshot")?;
236 atomic_write_file(&project_dir.join(BASE_FILE), &snapshot)?;
237
238 Ok(Self {
239 root: root.to_path_buf(),
240 project: project.to_string(),
241 doc,
242 })
243 }
244
245 pub fn open(root: &Path, project: &str) -> Result<Self> {
246 validate_project_name(project)?;
247 let project_dir = project_dir(root, project);
248 let base_path = project_dir.join(BASE_FILE);
249
250 if !base_path.exists() {
251 bail!("project '{project}' is not initialized. Run 'td init {project}'");
252 }
253
254 let base = fs::read(&base_path)
255 .with_context(|| format!("failed to read loro snapshot '{}'", base_path.display()))?;
256
257 let doc = LoroDoc::from_snapshot(&base).context("failed to load loro snapshot")?;
258 doc.set_peer_id(load_or_create_device_peer_id(root)?)?;
259
260 let mut deltas = collect_delta_paths(&project_dir)?;
261 deltas.sort_by_key(|path| {
262 path.file_stem()
263 .and_then(|s| s.to_str())
264 .and_then(|s| Ulid::from_string(s).ok())
265 });
266
267 for delta_path in deltas {
268 let bytes = fs::read(&delta_path)
269 .with_context(|| format!("failed to read loro delta '{}'", delta_path.display()))?;
270 if let Err(err) = doc.import(&bytes) {
271 // Tolerate malformed or stale delta files as requested by design.
272 eprintln!(
273 "warning: skipping unreadable delta '{}': {err}",
274 delta_path.display()
275 );
276 }
277 }
278
279 Ok(Self {
280 root: root.to_path_buf(),
281 project: project.to_string(),
282 doc,
283 })
284 }
285
286 /// Bootstrap a local project from peer-provided delta bytes.
287 ///
288 /// The incoming delta is imported into a fresh document, validated to
289 /// ensure it carries `meta.project_id`, and then persisted as a base
290 /// snapshot for future opens.
291 pub fn bootstrap_from_peer(root: &Path, project: &str, delta: &[u8]) -> Result<Self> {
292 validate_project_name(project)?;
293 let project_dir = project_dir(root, project);
294 if project_dir.exists() {
295 bail!("project '{project}' already exists");
296 }
297 fs::create_dir_all(project_dir.join(CHANGES_DIR))?;
298
299 let doc = LoroDoc::new();
300 doc.set_peer_id(load_or_create_device_peer_id(root)?)?;
301 doc.import(delta)
302 .context("failed to import bootstrap delta from peer")?;
303 doc.commit();
304
305 read_project_id_from_doc(&doc)
306 .context("bootstrap delta is missing required project identity")?;
307
308 let snapshot = doc
309 .export(ExportMode::Snapshot)
310 .context("failed to export bootstrap loro snapshot")?;
311 atomic_write_file(&project_dir.join(BASE_FILE), &snapshot)?;
312
313 Ok(Self {
314 root: root.to_path_buf(),
315 project: project.to_string(),
316 doc,
317 })
318 }
319
320 pub fn root(&self) -> &Path {
321 &self.root
322 }
323
324 pub fn project_name(&self) -> &str {
325 &self.project
326 }
327
328 pub fn doc(&self) -> &LoroDoc {
329 &self.doc
330 }
331
332 /// Export all current state to a fresh base snapshot.
333 pub fn write_snapshot(&self) -> Result<PathBuf> {
334 let out = project_dir(&self.root, &self.project).join(BASE_FILE);
335 let bytes = self
336 .doc
337 .export(ExportMode::Snapshot)
338 .context("failed to export loro snapshot")?;
339 atomic_write_file(&out, &bytes)?;
340 Ok(out)
341 }
342
343 /// Delete persisted delta files after a fresh snapshot has been written.
344 pub fn purge_deltas(&self) -> Result<usize> {
345 let project_dir = project_dir(&self.root, &self.project);
346 let paths = collect_delta_paths(&project_dir)?;
347 let mut removed = 0usize;
348 for path in paths {
349 fs::remove_file(&path)
350 .with_context(|| format!("failed removing delta '{}'", path.display()))?;
351 removed += 1;
352 }
353 Ok(removed)
354 }
355
356 /// Apply a local mutation and persist only the resulting delta.
357 pub fn apply_and_persist<F>(&self, mutator: F) -> Result<PathBuf>
358 where
359 F: FnOnce(&LoroDoc) -> Result<()>,
360 {
361 let before = self.doc.oplog_vv();
362 mutator(&self.doc)?;
363 self.doc.commit();
364
365 let delta = self
366 .doc
367 .export(ExportMode::updates(&before))
368 .context("failed to export loro update delta")?;
369
370 let filename = format!("{}.loro", Ulid::new());
371 let path = project_dir(&self.root, &self.project)
372 .join(CHANGES_DIR)
373 .join(filename);
374 atomic_write_file(&path, &delta)?;
375 Ok(path)
376 }
377
378 /// Persist pre-built delta bytes (e.g. received from a peer) as a new
379 /// change file without re-exporting from the doc.
380 pub fn save_raw_delta(&self, bytes: &[u8]) -> Result<PathBuf> {
381 let filename = format!("{}.loro", Ulid::new());
382 let path = project_dir(&self.root, &self.project)
383 .join(CHANGES_DIR)
384 .join(filename);
385 atomic_write_file(&path, bytes)?;
386 Ok(path)
387 }
388
389 /// Return hydrated tasks, excluding tombstones.
390 pub fn list_tasks(&self) -> Result<Vec<Task>> {
391 self.list_tasks_inner(false)
392 }
393
394 /// Return hydrated tasks, including tombstoned rows.
395 pub fn list_tasks_unfiltered(&self) -> Result<Vec<Task>> {
396 self.list_tasks_inner(true)
397 }
398
399 /// Find a task by exact ULID string.
400 pub fn get_task(&self, id: &TaskId, include_deleted: bool) -> Result<Option<Task>> {
401 let tasks = if include_deleted {
402 self.list_tasks_unfiltered()?
403 } else {
404 self.list_tasks()?
405 };
406 Ok(tasks.into_iter().find(|task| task.id == *id))
407 }
408
409 fn list_tasks_inner(&self, include_deleted: bool) -> Result<Vec<Task>> {
410 let root = serde_json::to_value(self.doc.get_deep_value())?;
411 let tasks_obj = root
412 .get("tasks")
413 .and_then(Value::as_object)
414 .ok_or_else(|| anyhow!("missing root tasks map"))?;
415
416 let mut tasks = Vec::with_capacity(tasks_obj.len());
417 for (task_id_raw, task_json) in tasks_obj {
418 let task = hydrate_task(task_id_raw, task_json)?;
419 if include_deleted || task.deleted_at.is_none() {
420 tasks.push(task);
421 }
422 }
423
424 tasks.sort_by(|a, b| a.id.as_str().cmp(b.id.as_str()));
425 Ok(tasks)
426 }
427
428 pub fn schema_version(&self) -> Result<u32> {
429 let root = serde_json::to_value(self.doc.get_deep_value())?;
430 let meta = root
431 .get("meta")
432 .and_then(Value::as_object)
433 .ok_or_else(|| anyhow!("missing root meta map"))?;
434 let n = meta
435 .get("schema_version")
436 .and_then(Value::as_u64)
437 .ok_or_else(|| anyhow!("invalid or missing meta.schema_version"))?;
438 Ok(n as u32)
439 }
440}
441
442/// Generate a new task ULID.
443pub fn gen_id() -> TaskId {
444 TaskId::new(Ulid::new())
445}
446
447pub fn parse_status(s: &str) -> Result<Status> {
448 Status::parse(s)
449}
450
451pub fn parse_priority(s: &str) -> Result<Priority> {
452 Priority::parse(s)
453}
454
455pub fn parse_effort(s: &str) -> Result<Effort> {
456 Effort::parse(s)
457}
458
459pub fn status_label(s: Status) -> &'static str {
460 s.as_str()
461}
462
463pub fn priority_label(p: Priority) -> &'static str {
464 p.as_str()
465}
466
467pub fn effort_label(e: Effort) -> &'static str {
468 e.as_str()
469}
470
471pub fn data_root() -> Result<PathBuf> {
472 let home = std::env::var("HOME").context("HOME is not set")?;
473 Ok(PathBuf::from(home).join(".local").join("share").join("td"))
474}
475
476pub fn init(cwd: &Path, project: &str) -> Result<Store> {
477 let root = data_root()?;
478 fs::create_dir_all(root.join(PROJECTS_DIR))?;
479 let store = Store::init(&root, project)?;
480 bind_project(cwd, project)?;
481 Ok(store)
482}
483
484pub fn use_project(cwd: &Path, project: &str) -> Result<()> {
485 let root = data_root()?;
486 validate_project_name(project)?;
487 if !project_dir(&root, project).join(BASE_FILE).exists() {
488 bail!("project '{project}' not found. Run 'td projects' to list known projects");
489 }
490 bind_project(cwd, project)
491}
492
493pub fn open(start: &Path) -> Result<Store> {
494 let root = data_root()?;
495 let explicit = std::env::var(PROJECT_ENV).ok();
496 let project = resolve_project_name(start, &root, explicit.as_deref())?.ok_or_else(|| {
497 anyhow!(
498 "no project selected. Use --project/TD_PROJECT, run 'td use <name>', or run 'td init <name>'"
499 )
500 })?;
501 Store::open(&root, &project)
502}
503
504/// Open the project selected by `--project`/`TD_PROJECT`/bindings if one exists.
505///
506/// Returns `Ok(None)` when no project is selected by any mechanism.
507pub fn try_open(start: &Path) -> Result<Option<Store>> {
508 let root = data_root()?;
509 let explicit = std::env::var(PROJECT_ENV).ok();
510 let Some(project) = resolve_project_name(start, &root, explicit.as_deref())? else {
511 return Ok(None);
512 };
513 Store::open(&root, &project).map(Some)
514}
515
516/// Bootstrap a project from a peer delta and bind the current directory.
517pub fn bootstrap_sync(cwd: &Path, project: &str, delta: &[u8]) -> Result<Store> {
518 let root = data_root()?;
519 fs::create_dir_all(root.join(PROJECTS_DIR))?;
520 validate_project_name(project)?;
521 let store = Store::bootstrap_from_peer(&root, project, delta)?;
522 bind_project(cwd, project)?;
523 Ok(store)
524}
525
526pub fn list_projects() -> Result<Vec<String>> {
527 let root = data_root()?;
528 let mut out = Vec::new();
529 let dir = root.join(PROJECTS_DIR);
530 if !dir.exists() {
531 return Ok(out);
532 }
533
534 for entry in fs::read_dir(dir)? {
535 let path = entry?.path();
536 if !path.is_dir() {
537 continue;
538 }
539 let Some(name) = path.file_name().and_then(|n| n.to_str()) else {
540 continue;
541 };
542 if path.join(BASE_FILE).exists() {
543 out.push(name.to_string());
544 }
545 }
546
547 out.sort();
548 Ok(out)
549}
550
551pub fn resolve_task_id(store: &Store, raw: &str, include_deleted: bool) -> Result<TaskId> {
552 let raw = raw.strip_prefix("td-").unwrap_or(raw);
553
554 if let Ok(id) = TaskId::parse(raw) {
555 if store.get_task(&id, include_deleted)?.is_some() {
556 return Ok(id);
557 }
558 }
559
560 let tasks = if include_deleted {
561 store.list_tasks_unfiltered()?
562 } else {
563 store.list_tasks()?
564 };
565
566 let upper = raw.to_ascii_uppercase();
567 let matches: Vec<TaskId> = tasks
568 .into_iter()
569 .filter(|t| t.id.as_str().ends_with(&upper))
570 .map(|t| t.id)
571 .collect();
572
573 match matches.as_slice() {
574 [] => bail!("task '{raw}' not found"),
575 [id] => Ok(id.clone()),
576 _ => bail!("task reference '{raw}' is ambiguous"),
577 }
578}
579
580pub fn partition_blockers(store: &Store, blockers: &[TaskId]) -> Result<BlockerPartition> {
581 let mut out = BlockerPartition::default();
582 for blocker in blockers {
583 let Some(task) = store.get_task(blocker, true)? else {
584 out.resolved.push(blocker.clone());
585 continue;
586 };
587 if task.status == Status::Closed || task.deleted_at.is_some() {
588 out.resolved.push(blocker.clone());
589 } else {
590 out.open.push(blocker.clone());
591 }
592 }
593 Ok(out)
594}
595
596pub fn insert_task_map(tasks: &LoroMap, task_id: &TaskId) -> Result<LoroMap> {
597 tasks
598 .insert_container(task_id.as_str(), LoroMap::new())
599 .context("failed to create task map")
600}
601
602pub fn get_task_map(tasks: &LoroMap, task_id: &TaskId) -> Result<Option<LoroMap>> {
603 match tasks.get(task_id.as_str()) {
604 Some(ValueOrContainer::Container(Container::Map(map))) => Ok(Some(map)),
605 Some(_) => bail!("task '{}' has invalid container type", task_id.as_str()),
606 None => Ok(None),
607 }
608}
609
610pub fn get_or_create_child_map(parent: &LoroMap, key: &str) -> Result<LoroMap> {
611 parent
612 .get_or_create_container(key, LoroMap::new())
613 .with_context(|| format!("failed to get or create map key '{key}'"))
614}
615
616fn bindings_path(root: &Path) -> PathBuf {
617 root.join(BINDINGS_FILE)
618}
619
620fn resolve_project_name(
621 start: &Path,
622 root: &Path,
623 explicit: Option<&str>,
624) -> Result<Option<String>> {
625 if let Some(project) = explicit {
626 validate_project_name(project)?;
627 return Ok(Some(project.to_string()));
628 }
629
630 let cwd = canonicalize_binding_path(start)?;
631 let bindings = load_bindings(root)?;
632
633 let mut best: Option<(usize, String)> = None;
634 for (raw_path, project) in bindings.bindings {
635 let bound = PathBuf::from(raw_path);
636 if is_prefix_path(&bound, &cwd) {
637 let score = bound.components().count();
638 match &best {
639 Some((best_score, _)) if *best_score >= score => {}
640 _ => best = Some((score, project)),
641 }
642 }
643 }
644
645 if let Some((_, project)) = best {
646 return Ok(Some(project));
647 }
648
649 Ok(None)
650}
651
652fn bind_project(cwd: &Path, project: &str) -> Result<()> {
653 validate_project_name(project)?;
654
655 let root = data_root()?;
656 fs::create_dir_all(&root)?;
657
658 let canonical = canonicalize_binding_path(cwd)?;
659 let mut bindings = load_bindings(&root)?;
660 bindings
661 .bindings
662 .insert(canonical.to_string_lossy().to_string(), project.to_string());
663 save_bindings(&root, &bindings)
664}
665
666fn load_bindings(root: &Path) -> Result<BindingsFile> {
667 let path = bindings_path(root);
668 if !path.exists() {
669 return Ok(BindingsFile::default());
670 }
671 let content = fs::read_to_string(&path)
672 .with_context(|| format!("failed reading bindings from '{}'", path.display()))?;
673 serde_json::from_str(&content)
674 .with_context(|| format!("invalid bindings file '{}'", path.display()))
675}
676
677fn save_bindings(root: &Path, bindings: &BindingsFile) -> Result<()> {
678 let path = bindings_path(root);
679 let bytes = serde_json::to_vec_pretty(bindings)?;
680 atomic_write_file(&path, &bytes)
681}
682
683fn canonicalize_binding_path(path: &Path) -> Result<PathBuf> {
684 fs::canonicalize(path).with_context(|| format!("failed to canonicalize '{}'", path.display()))
685}
686
687fn is_prefix_path(prefix: &Path, target: &Path) -> bool {
688 let mut prefix_components = prefix.components();
689 let mut target_components = target.components();
690
691 loop {
692 match (prefix_components.next(), target_components.next()) {
693 (None, _) => return true,
694 (Some(_), None) => return false,
695 (Some(a), Some(b)) if a == b => continue,
696 _ => return false,
697 }
698 }
699}
700
701fn validate_project_name(name: &str) -> Result<()> {
702 if name.is_empty() {
703 bail!("project name cannot be empty");
704 }
705 if name.contains('/') || name.contains('\\') || name == "." || name == ".." {
706 bail!("invalid project name '{name}'");
707 }
708 if name.chars().any(char::is_control) {
709 bail!("invalid project name '{name}'");
710 }
711 Ok(())
712}
713
714fn read_project_id_from_doc(doc: &LoroDoc) -> Result<String> {
715 let root = serde_json::to_value(doc.get_deep_value())?;
716 root.get("meta")
717 .and_then(|m| m.get("project_id"))
718 .and_then(Value::as_str)
719 .map(str::to_owned)
720 .ok_or_else(|| anyhow!("missing meta.project_id in project doc"))
721}
722
723fn hydrate_task(task_id_raw: &str, value: &Value) -> Result<Task> {
724 let obj = value
725 .as_object()
726 .ok_or_else(|| anyhow!("task '{task_id_raw}' is not an object"))?;
727
728 let id = TaskId::parse(task_id_raw)?;
729
730 let title = get_required_string(obj, "title")?;
731 let description = get_required_string(obj, "description")?;
732 let task_type = get_required_string(obj, "type")?;
733 let status = Status::parse(&get_required_string(obj, "status")?)?;
734 let priority = Priority::parse(&get_required_string(obj, "priority")?)?;
735 let effort = Effort::parse(&get_required_string(obj, "effort")?)?;
736 let parent = match obj.get("parent").and_then(Value::as_str) {
737 Some("") | None => None,
738 Some(raw) => Some(TaskId::parse(raw)?),
739 };
740
741 let created_at = get_required_string(obj, "created_at")?;
742 let updated_at = get_required_string(obj, "updated_at")?;
743 let deleted_at = obj
744 .get("deleted_at")
745 .and_then(Value::as_str)
746 .map(str::to_owned)
747 .filter(|s| !s.is_empty());
748
749 let labels = obj
750 .get("labels")
751 .and_then(Value::as_object)
752 .map(|m| m.keys().cloned().collect())
753 .unwrap_or_default();
754
755 let blockers = obj
756 .get("blockers")
757 .and_then(Value::as_object)
758 .map(|m| {
759 m.keys()
760 .map(|raw| TaskId::parse(raw))
761 .collect::<Result<Vec<_>>>()
762 })
763 .transpose()?
764 .unwrap_or_default();
765
766 let mut logs = obj
767 .get("logs")
768 .and_then(Value::as_object)
769 .map(|logs| {
770 logs.iter()
771 .map(|(log_id_raw, payload)| {
772 let payload_obj = payload.as_object().ok_or_else(|| {
773 anyhow!("log '{log_id_raw}' on task '{task_id_raw}' is not an object")
774 })?;
775 Ok(LogEntry {
776 id: TaskId::parse(log_id_raw)?,
777 timestamp: get_required_string(payload_obj, "timestamp")?,
778 message: get_required_string(payload_obj, "message")?,
779 })
780 })
781 .collect::<Result<Vec<_>>>()
782 })
783 .transpose()?
784 .unwrap_or_default();
785
786 logs.sort_by(|a, b| a.id.as_str().cmp(b.id.as_str()));
787
788 Ok(Task {
789 id,
790 title,
791 description,
792 task_type,
793 priority,
794 status,
795 effort,
796 parent,
797 created_at,
798 updated_at,
799 deleted_at,
800 labels,
801 blockers,
802 logs,
803 })
804}
805
806fn get_required_string(map: &serde_json::Map<String, Value>, key: &str) -> Result<String> {
807 map.get(key)
808 .and_then(Value::as_str)
809 .map(str::to_owned)
810 .ok_or_else(|| anyhow!("missing or non-string key '{key}'"))
811}
812
813fn collect_delta_paths(project_dir: &Path) -> Result<Vec<PathBuf>> {
814 let mut paths = Vec::new();
815 collect_changes_from_dir(&project_dir.join(CHANGES_DIR), &mut paths)?;
816
817 for entry in fs::read_dir(project_dir)? {
818 let path = entry?.path();
819 if !path.is_dir() {
820 continue;
821 }
822 let Some(name) = path.file_name().and_then(|n| n.to_str()) else {
823 continue;
824 };
825 if name.starts_with("changes.compacting.") {
826 collect_changes_from_dir(&path, &mut paths)?;
827 }
828 }
829
830 Ok(paths)
831}
832
833fn collect_changes_from_dir(dir: &Path, out: &mut Vec<PathBuf>) -> Result<()> {
834 if !dir.exists() {
835 return Ok(());
836 }
837
838 for entry in fs::read_dir(dir)? {
839 let path = entry?.path();
840 if !path.is_file() {
841 continue;
842 }
843
844 let Some(filename) = path.file_name().and_then(|n| n.to_str()) else {
845 continue;
846 };
847 if filename.ends_with(TMP_SUFFIX) || !filename.ends_with(".loro") {
848 continue;
849 }
850
851 let Some(stem) = path.file_stem().and_then(|s| s.to_str()) else {
852 continue;
853 };
854 if Ulid::from_string(stem).is_err() {
855 continue;
856 }
857
858 out.push(path);
859 }
860
861 Ok(())
862}
863
864fn project_dir(root: &Path, project: &str) -> PathBuf {
865 root.join(PROJECTS_DIR).join(project)
866}
867
868fn load_or_create_device_peer_id(root: &Path) -> Result<PeerID> {
869 let path = root.join("device_id");
870 if let Some(parent) = path.parent() {
871 fs::create_dir_all(parent)?;
872 }
873
874 let device_ulid = if path.exists() {
875 let content = fs::read_to_string(&path)
876 .with_context(|| format!("failed reading device id from '{}'", path.display()))?;
877 Ulid::from_string(content.trim()).context("invalid persisted device id ULID")?
878 } else {
879 let id = Ulid::new();
880 atomic_write_file(&path, id.to_string().as_bytes())?;
881 id
882 };
883
884 let raw: u128 = device_ulid.into();
885 Ok((raw & u64::MAX as u128) as u64)
886}
887
888fn atomic_write_file(path: &Path, bytes: &[u8]) -> Result<()> {
889 let parent = path
890 .parent()
891 .ok_or_else(|| anyhow!("cannot atomically write root path '{}'", path.display()))?;
892 fs::create_dir_all(parent)?;
893
894 let tmp_name = format!(
895 "{}.{}{}",
896 path.file_name().and_then(|n| n.to_str()).unwrap_or("write"),
897 Ulid::new(),
898 TMP_SUFFIX
899 );
900 let tmp_path = parent.join(tmp_name);
901
902 {
903 let mut file = OpenOptions::new()
904 .create_new(true)
905 .write(true)
906 .open(&tmp_path)
907 .with_context(|| format!("failed to open temp file '{}'", tmp_path.display()))?;
908 file.write_all(bytes)?;
909 file.sync_all()?;
910 }
911
912 fs::rename(&tmp_path, path).with_context(|| {
913 format!(
914 "failed to atomically rename '{}' to '{}'",
915 tmp_path.display(),
916 path.display()
917 )
918 })?;
919
920 sync_dir(parent)?;
921 Ok(())
922}
923
924fn sync_dir(path: &Path) -> Result<()> {
925 let dir =
926 File::open(path).with_context(|| format!("failed opening dir '{}'", path.display()))?;
927 dir.sync_all()
928 .with_context(|| format!("failed fsync on dir '{}'", path.display()))?;
929 Ok(())
930}