diff --git a/desktop/scripts/installer-custom.nsh b/desktop/scripts/installer-custom.nsh
index 6dd09fb..33e7240 100644
--- a/desktop/scripts/installer-custom.nsh
+++ b/desktop/scripts/installer-custom.nsh
@@ -14,6 +14,34 @@
Var WDA_InstallDirPage
+!macro customInit
+ ; Safety: older versions created an `output` junction inside the install directory that points to the
+ ; per-user AppData `output` folder. Some uninstall/update flows may traverse that junction and delete
+ ; real user data. Remove it as early as possible during install/update.
+ Call WDA_RemoveLegacyOutputLink
+!macroend
+
+!macro customInstall
+ ; Provide a safe, non-junction way for users to locate the real per-user output directory.
+ ; The actual data is NOT stored inside $INSTDIR (it is wiped on update/reinstall).
+ ; `open-output.cmd` uses %APPDATA% so it works for the current user.
+ FileOpen $0 "$INSTDIR\output-location.txt" w
+ FileWrite $0 "WeChatDataAnalysis output folder (per user):$\r$\n%APPDATA%\\${APP_PACKAGE_NAME}\\output$\r$\n"
+ FileClose $0
+
+ FileOpen $1 "$INSTDIR\open-output.cmd" w
+ ; NSIS escaping: use $\" to output a literal quote character into the .cmd file.
+ FileWrite $1 "@echo off$\r$\nexplorer $\"%APPDATA%\\${APP_PACKAGE_NAME}\\output$\"$\r$\n"
+ FileClose $1
+!macroend
+
+Function WDA_RemoveLegacyOutputLink
+ ; $INSTDIR is usually the full install directory. Be defensive and also try the nested path
+ ; in case the installer is running before electron-builder appends "\${APP_FILENAME}".
+ RMDir "$INSTDIR\output"
+ RMDir "$INSTDIR\${APP_FILENAME}\output"
+FunctionEnd
+
!macro customPageAfterChangeDir
; Add a confirmation page after the directory picker so users clearly see
; the final install location (includes the app sub-folder).
@@ -90,6 +118,10 @@ Var /GLOBAL WDA_DeleteUserData
!macro customUnInit
; Default: keep user data (also applies to silent uninstall / update uninstall).
StrCpy $WDA_DeleteUserData "0"
+
+ ; Safety: if an older build created an `output` junction inside the install dir, remove it early so
+ ; directory cleanup can't traverse it and delete the real per-user output folder.
+ RMDir "$INSTDIR\output"
!macroend
!macro customUnWelcomePage
diff --git a/desktop/src/main.cjs b/desktop/src/main.cjs
index 0ed4605..f4a2082 100644
--- a/desktop/src/main.cjs
+++ b/desktop/src/main.cjs
@@ -163,7 +163,11 @@ function getExeDir() {
function ensureOutputLink() {
// Users often expect an `output/` folder near the installed exe. We keep the real data
- // in the per-user data dir, and (when possible) create a Windows junction next to the exe.
+ // in the per-user data dir.
+ //
+ // NOTE: We intentionally avoid creating a junction/symlink inside the install directory.
+ // Some uninstall/update flows may traverse reparse points and delete the target directory,
+ // causing data loss (the install dir is removed on every update/reinstall).
if (!app.isPackaged) return;
const exeDir = getExeDir();
@@ -171,26 +175,56 @@ function ensureOutputLink() {
if (!exeDir || !dataDir) return;
const target = path.join(dataDir, "output");
- const linkPath = path.join(exeDir, "output");
+ const legacyLinkPath = path.join(exeDir, "output");
- // If the target doesn't exist yet, create it so the link points somewhere real.
+ // Ensure the real output dir exists.
try {
fs.mkdirSync(target, { recursive: true });
} catch {}
- // If something already exists at linkPath, do not overwrite it.
+ // Best-effort: remove a legacy junction/symlink at `exeDir/output` so uninstallers can't
+ // accidentally traverse it and delete the real per-user output directory.
try {
- if (fs.existsSync(linkPath)) return;
+ const st = fs.lstatSync(legacyLinkPath);
+ if (st.isSymbolicLink()) {
+ try {
+ fs.unlinkSync(legacyLinkPath);
+ logMain(`[main] removed legacy output link: ${legacyLinkPath}`);
+ } catch (err) {
+ logMain(`[main] failed to remove legacy output link: ${err?.message || err}`);
+ }
+ } else if (st.isDirectory()) {
+ const entries = fs.readdirSync(legacyLinkPath);
+ if (Array.isArray(entries) && entries.length === 0) {
+ // Remove an empty real directory to reduce confusion (it will be recreated by the backend if needed).
+ fs.rmdirSync(legacyLinkPath);
+ } else {
+ // Do not overwrite non-empty directories to avoid data loss.
+ // Note: data stored here will be wiped on update/reinstall.
+ logMain(
+ `[main] output dir exists in install dir (not a link): ${legacyLinkPath}. real data dir output: ${target}`
+ );
+ }
+ } else {
+ logMain(`[main] output path exists and is not a directory/link: ${legacyLinkPath}`);
+ }
} catch {
- return;
+ // Doesn't exist yet.
}
+ // Best-effort: drop a helper file next to the exe so users can find the real data.
+ // This avoids the data-loss risks of using junctions/symlinks under the install directory.
try {
- fs.symlinkSync(target, linkPath, "junction");
- logMain(`[main] created output link: ${linkPath} -> ${target}`);
- } catch (err) {
- logMain(`[main] failed to create output link: ${err?.message || err}`);
- }
+ const p = path.join(exeDir, "output-location.txt");
+ const text = `WeChatDataAnalysis data directory\n\nOutput folder:\n${target}\n`;
+ fs.writeFileSync(p, text, { encoding: "utf8" });
+ } catch {}
+
+ try {
+ const p = path.join(exeDir, "open-output.cmd");
+ const text = `@echo off\r\nexplorer \"${target}\"\r\n`;
+ fs.writeFileSync(p, text, { encoding: "utf8" });
+ } catch {}
}
function getMainLogPath() {
@@ -1254,6 +1288,30 @@ function registerWindowIpc() {
}
});
+ ipcMain.handle("app:getOutputDir", () => {
+ const dir = resolveDataDir();
+ if (!dir) return "";
+ return path.join(dir, "output");
+ });
+
+ ipcMain.handle("app:openOutputDir", async () => {
+ const dir = resolveDataDir();
+ if (!dir) throw new Error("无法定位数据目录");
+ const outDir = path.join(dir, "output");
+ try {
+ fs.mkdirSync(outDir, { recursive: true });
+ } catch {}
+ try {
+ const err = await shell.openPath(outDir);
+ if (err) throw new Error(err);
+ return { success: true, path: outDir };
+ } catch (e) {
+ const message = e?.message || String(e);
+ logMain(`[main] openOutputDir failed: ${message}`);
+ throw new Error(message);
+ }
+ });
+
ipcMain.handle("app:checkForUpdates", async () => {
return await checkForUpdatesInternal();
});
@@ -1272,6 +1330,11 @@ function registerWindowIpc() {
}
try {
+ // Safety: remove legacy `output` junctions in the install dir before triggering the NSIS update/uninstall.
+ // Some uninstall flows may traverse reparse points and delete the real per-user output directory.
+ try {
+ ensureOutputLink();
+ } catch {}
autoUpdater.quitAndInstall(false, true);
return { success: true };
} catch (err) {
@@ -1312,7 +1375,7 @@ async function main() {
registerWindowIpc();
registerDebugShortcuts();
- // Resolve/create the data dir early so we can log reliably and (optionally) place a link
+ // Resolve/create the data dir early so we can log reliably and place helper files
// next to the installed exe for easier access.
resolveDataDir();
ensureOutputLink();
diff --git a/desktop/src/preload.cjs b/desktop/src/preload.cjs
index e83f477..938feb4 100644
--- a/desktop/src/preload.cjs
+++ b/desktop/src/preload.cjs
@@ -19,6 +19,10 @@ contextBridge.exposeInMainWorld("wechatDesktop", {
chooseDirectory: (options = {}) => ipcRenderer.invoke("dialog:chooseDirectory", options),
+ // Data/output folder helpers
+ getOutputDir: () => ipcRenderer.invoke("app:getOutputDir"),
+ openOutputDir: () => ipcRenderer.invoke("app:openOutputDir"),
+
// Auto update
getVersion: () => ipcRenderer.invoke("app:getVersion"),
checkForUpdates: () => ipcRenderer.invoke("app:checkForUpdates"),
diff --git a/frontend/components/SettingsDialog.vue b/frontend/components/SettingsDialog.vue
index 6bc7560..7d13c2d 100644
--- a/frontend/components/SettingsDialog.vue
+++ b/frontend/components/SettingsDialog.vue
@@ -142,6 +142,24 @@