SteelDynamite/onyx-tasks
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fix(sync): use atomic_write for all payload file writes during sync

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Sync's conflict-resolution and download paths wrote the local file with
plain fs::write. A crash or I/O error mid-write left a truncated .md
or .listdata.json that would then fail YAML/JSON parsing on the next
list_tasks. All other callers in this crate use atomic_write; route
the four sync call sites through it for consistency and crash safety.
This commit is contained in:
Claude 2026-04-17 16:21:24 +00:00
parent c134624839
commit b437b0b7b2
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1 changed files with 7 additions and 6 deletions
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13
crates/onyx-core/src/sync.rs
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@ -5,7 +5,7 @@ use serde::{Deserialize, Serialize};
use sha2::{Sha256, Digest};
use uuid::Uuid;
use crate::error::{Error, Result};
use crate::storage::{ListMetadata, TaskFrontmatter};
use crate::storage::{atomic_write, ListMetadata, TaskFrontmatter};
use crate::webdav::WebDavClient;
/// File-based lock to prevent concurrent sync operations on the same workspace.
@ -743,8 +743,9 @@ async fn execute_action(
} else {
report(&format!(" ! Conflict: remote wins for {}, recovering local as duplicate", path));
// Remote wins: overwrite local with remote content
std::fs::write(&local_path, &remote_data)?;
// Remote wins: overwrite local with remote content. Atomic
// so a crash mid-sync cannot leave a truncated file behind.
atomic_write(&local_path, &remote_data)?;
let modified = std::fs::metadata(&local_path).ok()
.and_then(|m| m.modified().ok())
.map(|t| { let dt: DateTime<Utc> = t.into(); dt.to_rfc3339() });
@ -775,7 +776,7 @@ async fn execute_action(
let list_dir = workspace_path.join(parts[0]);
let dup_filename = format!("{}.md", new_id);
let dup_path = list_dir.join(&dup_filename);
std::fs::write(&dup_path, &new_content)?;
atomic_write(&dup_path, new_content.as_bytes())?;
// Insert new task adjacent to original in .listdata.json.
// If metadata update fails, remove the duplicate file to
@ -791,7 +792,7 @@ async fn execute_action(
.unwrap_or(metadata.task_order.len());
metadata.task_order.insert(insert_pos, new_id);
let json = serde_json::to_string_pretty(&metadata)?;
std::fs::write(&listdata_path, json)?;
atomic_write(&listdata_path, json.as_bytes())?;
Ok(())
})();
if let Err(e) = metadata_updated {
@ -816,7 +817,7 @@ async fn execute_action(
if let Some(parent) = local_path.parent() {
std::fs::create_dir_all(parent)?;
}
std::fs::write(&local_path, &data)?;
atomic_write(&local_path, &data)?;
// Record remote's last_modified so next diff won't see a timestamp mismatch
let modified = remote_meta.get(path.as_str()).and_then(|r| r.last_modified.clone());