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feat(power): keep the machine awake while Codeman runs, lid close included

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A laptop that suspends freezes every agent session until it wakes. The new
opt-in setting (App Settings > System > Power, off by default, "Only on AC
power" on by default) makes the server hold an OS sleep lock for exactly as
long as it runs:

- Linux: a logind block lock on handle-lid-switch:sleep:idle through
  systemd-inhibit. The lid needs the low-level handle-lid-switch lock
  (LidSwitchIgnoreInhibited=yes ignores a plain sleep lock), and polkit grants
  it only while someone is logged in to the desktop, so a refusal is reported
  as "denied" and retried every minute.
- macOS: caffeinate -i -s -w <pid>. Lid close needs pmset disablesleep, which
  an optional root helper (scripts/keep-awake-macos.sh, a LaunchDaemon run
  from a root-owned copy) applies while the server keeps a fresh request
  file, undoing only a disablesleep it set itself.

The lock dies with the server: systemd-inhibit runs cat on a stdin pipe, so
any exit (SIGKILL included, and under the unit's KillMode=process) releases
it; caffeinate exits with the pid it watches.

The installer asks on laptops (default no, never under --yes), and
`install.sh keep-awake` turns it on for an existing install. Status is at
GET /api/system/keep-awake; a non-admin's value is dropped in multi-user mode.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Codeman maintainer
2026-10-10 07:21:57 +02:00
parent 3d59e59e37
commit 233f85b170
19 changed files with 1960 additions and 31 deletions
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docs/wiki/Settings-Reference.md
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@@ -181,8 +181,14 @@ Rebinding for the shortcut registry. See [Keyboard Shortcuts](Keyboard-Shortcuts
`CLAUDE.md` template for new cases, default working directory, the image watcher, and
Cloudflare tunnel controls including the tunnel URL. The **Diagnostics** group runs
`codeman doctor` on the server and lists the agent CLIs, tmux, Node and the optional office
tools with their versions and install hints (admin only in multi-user mode). In multi-user
mode, the **Users** administration entry is injected here.
tools with their versions and install hints (admin only in multi-user mode). The **Power**
group keeps the machine Codeman runs on awake while Codeman runs (`keepAwakeEnabled`, off by
default; **Only on AC power**, `keepAwakeAcOnly`, on by default), and shows what the lock is
doing right now. On Linux it blocks lid-close suspend while someone is logged in to the
desktop (the desktop's own Automatic Suspend timer is separate). On macOS it blocks idle
sleep, and lid-close sleep too once the root helper from `install.sh keep-awake` is
installed. Admin only in multi-user mode. In multi-user mode, the **Users** administration
entry is injected here.
## Session Options