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feat(install): updates refresh systemd units; new installs run the newest release (#729)

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Updates that move HEAD now install changed systemd units through a root-owned helper (/usr/local/sbin/ledmatrix-refresh-units, two literal sudo lines), with a backup restored on rollback; a refresh that fails part-way puts the old units back. Devices without the new sudo rule keep updating and are told to re-run the installer once. The one-shot installer now checks out the newest vX.Y.Z release (LEDMATRIX_CHANNEL=beta keeps main) and never moves an existing checkout backwards.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Chuck
2026-10-03 13:09:53 -04:00
committed by GitHub
co-authored by Claude Opus 5.5
parent 515248b34e
commit f841fa36b6
24 changed files with 1974 additions and 29 deletions
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test/test_web_sudoers_installers_agree.py
+6 -1
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@@ -54,6 +54,10 @@ EXPECTED_GRANTS = frozenset({
("NOPASSWD:", "$SYSTEMCTL_PATH restart ledmatrix-web.service"),
("NOPASSWD:", "$BASH_PATH $PROJECT_ROOT/scripts/fix_perms/safe_plugin_rm.sh *"),
("NOPASSWD:", "$BASH_PATH $PROJECT_ROOT/scripts/fix_perms/safe_pip_install.sh *"),
# The unit refresh helper (scripts/install/ledmatrix_refresh_units.py),
# with no arguments (`""`; RULE below drops the closing quote) or --restore.
("NOPASSWD:", '$LEDMATRIX_REFRESH_UNITS_PATH "'),
("NOPASSWD:", "$LEDMATRIX_REFRESH_UNITS_PATH --restore"),
("NOPASSWD:NOEXEC:", "$JOURNALCTL_PATH -u ledmatrix.service *"),
("NOPASSWD:NOEXEC:", "$JOURNALCTL_PATH -u ledmatrix *"),
("NOPASSWD:NOEXEC:", "$JOURNALCTL_PATH -t ledmatrix *"),
@@ -145,7 +149,8 @@ def test_installer_call_renders_the_expected_rules(installer, tmp_path):
rendered.add((m.group(2), m.group(3)))
subst = {"$SYSTEMCTL_PATH": "/x/systemctl", "$BASH_PATH": "/x/bash",
"$REBOOT_PATH": "/x/reboot", "$POWEROFF_PATH": "/x/poweroff",
"$JOURNALCTL_PATH": "/x/journalctl", "$PROJECT_ROOT": "/srv/led root"}
"$JOURNALCTL_PATH": "/x/journalctl", "$PROJECT_ROOT": "/srv/led root",
"$LEDMATRIX_REFRESH_UNITS_PATH": "/usr/local/sbin/ledmatrix-refresh-units"}
expected = set()
for tags, command in EXPECTED_GRANTS:
for var, value in subst.items():