fix: Re-add atomic fs

Signed-off-by: Reece Dunham <[email protected]>

components/databaseHandler.ts

@@ -21,16 +21,19 @@ import type { ContractSession, GameVersion, UserProfile } from "./types/types"
 import { deserializeSession, serializeSession } from "./contracts/sessions"
 import { castUserProfile } from "./utils"
 import { log, LogLevel } from "./loggingInterop"
-import { mkdir, readdir, readFile, unlink, writeFile } from "fs/promises"
+import { mkdir, readdir, unlink } from "fs/promises"
 import type * as nodeFs from "node:fs/promises"
+import * as atomically from "atomically"
 import { existsSync } from "fs"
 
 // unlink, mkdir, readdir from node:fs/promises
 type NodeUnlinkMkdirReaddir = Pick<
     typeof nodeFs,
-    "unlink" | "mkdir" | "readdir" | "writeFile" | "readFile"
+    "unlink" | "mkdir" | "readdir"
 >
 
+type AtomicReadWrite = Pick<typeof atomically, "readFile" | "writeFile">
+
 // custom exists function because node doesn't have an async version of existsSync
 type ExistsPromise = {
     exists: (path: string) => Promise<boolean>
@@ -39,7 +42,9 @@ type ExistsPromise = {
 /**
  * The fs implementation that this system uses.
  */
-export type DataStorageFs = NodeUnlinkMkdirReaddir & ExistsPromise
+export type DataStorageFs = NodeUnlinkMkdirReaddir &
+    ExistsPromise &
+    AtomicReadWrite
 
 /**
  * Handles the dispatching of user data in a way that avoids FS operations unless absolutely needed.
@@ -65,8 +70,8 @@ class AsyncUserDataGuard {
      */
     getFs(): DataStorageFs {
         return {
-            writeFile,
-            readFile,
+            writeFile: atomically.writeFile,
+            readFile: atomically.readFile,
             unlink,
             mkdir,
             readdir,

package.json

@@ -47,6 +47,7 @@
         "@peacockproject/statemachine-parser": "^6.1.0",
         "@yarnpkg/fslib": "^3.1.0",
         "@yarnpkg/libzip": "^3.1.0",
+        "atomically": "^2.0.3",
         "axios": "^1.7.4",
         "body-parser": "*",
         "clipanion": "^4.0.0-rc.3",

yarn.lock

@@ -533,6 +533,7 @@ __metadata:
     "@typescript-eslint/parser": "npm:^7.13.0"
     "@yarnpkg/fslib": "npm:^3.1.0"
     "@yarnpkg/libzip": "npm:^3.1.0"
+    atomically: "npm:^2.0.3"
     axios: "npm:^1.7.4"
     body-parser: "npm:*"
     clipanion: "npm:^4.0.0-rc.3"
@@ -1701,6 +1702,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"atomically@npm:^2.0.3":
+  version: 2.0.3
+  resolution: "atomically@npm:2.0.3"
+  dependencies:
+    stubborn-fs: "npm:^1.2.5"
+    when-exit: "npm:^2.1.1"
+  checksum: 10/c71cd27688a99199bfb441930ebdea8a289d86f210f59351d872aaaff39f4e29b7dfaf47ab593e444ef1b0e29ee5ea870285cc25a43078040c4f6cfc50bbf19a
+  languageName: node
+  linkType: hard
+
 "axios@npm:^1.7.4":
   version: 1.7.5
   resolution: "axios@npm:1.7.5"
@@ -5184,6 +5195,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"stubborn-fs@npm:^1.2.5":
+  version: 1.2.5
+  resolution: "stubborn-fs@npm:1.2.5"
+  checksum: 10/bd811a7a33f6c7aa2656f41167affd033c8d686eccdd998e8b3b53c0bce0dc78b0e03af97b7fe426196825cd5bc0c649cc3bcc7ef4675b770f3ba47c67463a2e
+  languageName: node
+  linkType: hard
+
 "supports-color@npm:^7.1.0":
   version: 7.2.0
   resolution: "supports-color@npm:7.2.0"
@@ -5651,6 +5669,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"when-exit@npm:^2.1.1":
+  version: 2.1.3
+  resolution: "when-exit@npm:2.1.3"
+  checksum: 10/d4242a15148df89e08e518b4c372580516d45a6ab527f14643a3789c6edb9ccfc788b1d717728c1a33c85dc53badefb511a3ee704ea61c4e86f693f3bf7666f2
+  languageName: node
+  linkType: hard
+
 "which@npm:^2.0.1":
   version: 2.0.2
   resolution: "which@npm:2.0.2"