Adds a --from DIR flag to scripts/dev-sandbox.sh that copies an existing
HERMES_HOME directory into the sandbox as the starting point before the
command runs. Lets you spin up a sandbox pre-populated with your real
config, sessions, skills, etc.
scripts/dev-sandbox.sh --from ~/.hermes hermes desktop
Design:
- cp -a dir/. dest/ — preserves perms, symlinks, hidden files
- Clobber guard: only seeds when sandbox HERMES_HOME is empty, so
re-running --persistent doesn't blow away existing sandbox state
- Validates: errors on nonexistent dir, missing arg, flag-like arg,
empty --from=
- Supports both --from DIR and --from=DIR forms
- Backwards compatible: no --from = unchanged behavior
scripts/desktop-sandbox.sh runs a Hermes desktop instance in an isolated
sandbox — separate HERMES_HOME, separate Electron userData, and a
distinct
app name (HERMES_DESKTOP_APP_NAME) so it doesn't compete with the main
desktop instance's single-instance lock.
Two modes:
- Ephemeral (default): temp dir, cleaned up on exit
- --persistent: stored under .hermes-sandbox/ in the worktree git root,
survives restarts for repeat testing
In the Nix devShell the script is available as 'sandbox'.
Also makes APP_NAME overridable via HERMES_DESKTOP_APP_NAME in main.ts —
app.setName() runs before requestSingleInstanceLock(), so the overridden
name changes the lock key. collectRelaunchEnv already preserves
HERMES_DESKTOP_* vars through self-update relaunches; test updated to
cover the new env var.
