import { join, dirname } from "node:path";
import { homedir } from "node:os";
import { existsSync, cpSync, mkdirSync } from "node:fs";
const APP_NAME = "claude-memory";
export function getDataDir(): string {
// Explicit override — use as-is (no APP_NAME suffix)
const explicit = process.env["IDENTITY_DATA_DIR"];
if (explicit) return explicit;
const xdg = process.env["XDG_DATA_HOME"];
if (xdg) return join(xdg, APP_NAME);
const appdata = process.env["APPDATA"];
if (appdata) return join(appdata, APP_NAME);
const home = process.env["HOME"] ?? homedir();
return join(home, ".local", "share", APP_NAME);
}
/**
* Migrate data from legacy path if needed.
* v4.1.x on Windows used HOME/.local/share/claude-memory because APPDATA
* wasn't checked. v4.2.0+ uses APPDATA/claude-memory. This function copies
* legacy data to the new path on first run after upgrade.
*/
export function migrateIfNeeded(): void {
// Skip if explicit override — user manages their own path
if (process.env["IDENTITY_DATA_DIR"]) return;
const dataDir = getDataDir();
// If new path already exists, no migration needed
if (existsSync(dataDir)) return;
// Check legacy path: HOME/.local/share/claude-memory
const home = process.env["HOME"] ?? process.env["USERPROFILE"] ?? homedir();
const legacyDir = join(home, ".local", "share", APP_NAME);
// Only migrate if legacy path is different from current AND has data
if (legacyDir === dataDir) return;
if (!existsSync(legacyDir)) return;
try {
mkdirSync(dirname(dataDir), { recursive: true });
cpSync(legacyDir, dataDir, { recursive: true });
process.stderr.write(
`identity: migrated data from ${legacyDir} to ${dataDir}\n`,
);
} catch {
// Migration is best-effort — don't crash if it fails
process.stderr.write(
`identity: warning — found legacy data at ${legacyDir} but migration to ${dataDir} failed. Copy manually.\n`,
);
}
}
export function getObservationsPath(): string {
return join(getDataDir(), "observations.json");
}
export function getIdentityDir(): string {
return join(getDataDir(), "identity");
}
