An update resolves the enabled plugin union against the NEW core. A plugin
admitted against the old core can stop fitting when core moves (managed
Python 3.13 -> 3.14 vs a member's requires-python <3.14, a requires_hermes
upper bound, a bumped pin), and the whole update then died after the
source swap with a non-resolver InstallError whose 'retry' hint failed the
same way every time.
Update syncs now pass evict_incompatible_plugins=True (update completion,
historical takeover, launch-time completion, venv_sync, post-update
drift). PM screens statically first (requires-python vs the target
interpreter, manifest/requires_hermes), then, if the rest still fails,
builds core alone to prove the plugins are the cause and re-adds members
in config order, disabling each one that breaks the build. Misfits land in
plugins.disabled (memory.provider cleared) in every home that enables
them, published through the existing journaled change hook (the journal
now carries several configs), and are reported on stderr + receipt
warnings. Admission and ordinary syncs still refuse; only a core that
cannot build on its own fails an update.
A normal `hermes update` only re-synced the venv. The sync pulls uv/python
in through its own dependency, but a ripgrep/ffmpeg/node/npm pin bump in
pm/lock.json was never installed, so PATH activation warned and skipped the
managed tool dirs on every CLI start and gateway boot. Only the takeover
route for historical releases ensured the tool roots.
Move the takeover's loop into pm.client.ensure_tools_for_sync() and call it
from both routes before the sync: update_completion._prepare (the CLI and
Desktop route, running from the new tree so the new lockfile applies) and
_update_takeover.prepare. It uses explicit=True like the takeover (an update
is an explicit user action) and a failed download fails the update.
post_update.step_provision_runtimes / MACHINE_STEPS stay: `python -m
hermes_cli.post_update --scope machine` and tests still reference them.
The ffmpeg docstring no longer claims that step re-ensures it.
The no-argument relock first runs PM's lock check, which reported a stale
lock the way build_env --check-lock does: a red "✗ Resolving Python
dependencies failed" plus uv's raw output, printed right before the relock.
A stale lock is the expected case for this command, so the check now takes
`quiet=True`, which captures uv's output instead of reporting it. The command
prints "→ Checking uv.lock…" then either "already current" or "out of date;
relocking" with the relock's own progress. build_env --check-lock keeps its
failure report unchanged; CI's remediation relies on it.
Choosing the worker command (including the cold-runtime lazy refusal and
its receipt) and mapping a worker error back to a caller exception move
out of pm.client._request. Behaviour is unchanged; CC drops from 40 to 26.
sync_venv took four mutually exclusive plugin kwargs (plugin_dirs,
extra_plugin_dirs, selection, staged_plugin) and venv_is_current two, with
runtime ValueErrors guarding the combinations. Replace them with a single
`plugins=` argument typed as one of pm.plugin_inputs.Members, Candidates,
Selection or StagedUpdate, so a conflicting request cannot be expressed.
The module also owns the worker wire encoding that client.py and worker.py
each duplicated.
pm.install.sync_venv is split into cohesive helpers (feature policy,
install lock, publication snapshot, target selection, commit) with the
same ordering, receipts and recovery; its CC drops from 54 to 16.
All in-tree callers and tests move to the new argument.
pm imported runtime_state's private helpers (_lock, _atomic_bytes, _bytes,
_digest) at a dozen sites while runtime_state imports pm.environments at
module top. The primitives are pm's: move them into the stdlib-only
pm.filesystem as lock_fd, durable_write_bytes, read_bytes_or_none and
file_digest, and repoint every pm caller.
runtime_state keeps the private names only as import aliases: it still
calls them through its own globals, and pre-PM updaters load them by these
names mid-swap (tests/compat/old_updater_surface.json).
Boot-subset test fixtures now copy pm/filesystem.py, since runtime_state
imports it at process boot; worker-injection tests patch the name
pm.publication now reads.
Twenty-five call sites told users to run
`python -c "from pm import sync_venv; sync_venv(['x'], explicit=True)"`
because `hermes pm install` only took package names. Add `--extra`
(repeatable; syncs the venv with the named extras and nothing else) and
pm.install_hint(extra), the single builder every site now uses, so the
advice stays correct when the command changes.
A cold PM runtime under allow_lazy_installs:false now reports the extra
the caller wanted and the command that provisions both, instead of a
bare "pm-runtime: not installed".
Generations are immutable and selection is a boot decision, so a mid-process
sync never changes the running process — it changes what every process booted
AFTERWARDS activates. That is correct when the caller runs on the selected
environment (the new generation is that environment plus the extra). From any
other interpreter (a build_environment test venv, a developer venv, a Nix store
Python) the same sync commits a selection the caller never activates while
later processes swap onto a generation missing whatever the foreign interpreter
carried. CI hit exactly this: bedrock/vertex adapters synced [bedrock] at import
from the test venv, the checkout gained its first selection, and every later
per-file subprocess booted into a generation without the test group.
pm.client.sync_venv now refuses a non-explicit extras sync unless the selected
environment's site-packages is on sys.path (pm.environments.
running_from_selected_environment). Explicit installs, repairs and plugin
member syncs are unchanged; the refusal names `hermes pm install` as the remedy
and is recorded on the receipt like every other lazy-install refusal.
`import pm.ensure` bound the submodule onto the package, shadowing the facade's
`pm.ensure()` function for every later caller in the process (photon's sidecar
start hit `'module' object is not callable`). The module is pm.install now; the
function keeps its name. The facade resolves through `__import__` rather than
`importlib.import_module` so a test that patches import_module globally does not
break attribute access on pm.
tools/lazy_deps.py returns to the 16-line stop_for_relaunch shim the branch wrote
(an origin/main merge had replaced it with main's 775-line implementation); the
project-metadata tests follow. update_cmd re-exports the four old_updater_deps
names the shim tests resolve through hermes_cli.update_cmd.
Dependency acquisition during packaging left native wheels and packager
inputs outside the pre-build cache save. Compose PM and existing providers
into a preparation phase, then require builds to consume admitted inputs.
Share native preparation with PM Bundle. Keep path-bound environments and
signing outputs separate from reusable caches. Use read-only cache tokens
for commit builds and preserve the one-command local build path.
Verify pinned tools through PM, probe PTYs under the prepared Electron,
and supply dmgbuild through a build-only PM package. Resolve bundled tool
stores from their payload manifest so relocation preserves discovery.
Validation: focused Python and JS tests, checkJs, Ruff, Windows checks,
anti-slop, cache relocation, and network-denied Linux AppImage builds.
Relocated runtime smoke passed with NixOS host libraries supplied.
Native Windows/macOS signing and live GitHub cache behavior remain untested.
Competing installers and checkout-local venv assumptions bypassed PM
selection, install consent, and generation lifetimes. Route consumers
through PM and installation-bound launchers. Refresh source launchers
before obsolete Python entries can be collected.
Remove Node, browser, and CUA acquisition engines, obsolete venv-holder
handling, detached sync, and unused PM APIs. Keep historical updater
exports inert and preserve external tool ownership and native integration.
Share product freshness and prepared inputs across builders. Align plugin
admission, Docker provisioning, setup instructions, and behavioral tests.
Verified targeted Python and JavaScript tests, desktop and web typechecks,
scoped lint, real product builds, and the Docker frontend smoke test.
The missed post-setup test cleanup is included and verified.
Native Windows/macOS execution, full Rust compilation, and the complete
repository suite remain unverified. Historical compatibility requirements
were preserved and extended, not fully rescanned.
Activation reaches plugin discovery before the application dependencies
exist. Give PM its own locked Python project and runtime so it can install
or repair the application without importing that dependency tree.
Keep PM outside the application workspace. A shared uv workspace resolves
the application graph and cannot provide this isolation. Route mutations
through an isolated worker and preserve transaction callbacks, cancellation,
custom package registrations, and correlated receipts.
Use the same runtime builder for source installs and packaged payloads.
Keep offline wheelhouse support in that builder. Nix builds the independent
PM lock as a separate derivation. Refuse lazy-disabled bootstrap before
installing tools or dependencies.
Move first-party YAML readers and writers to ruamel. Keep the application
lock's transitive PyYAML requirements for third-party packages.
Verification:
- Focused canonical Python suite: 177 passed, 1 host-gated skip.
- Electron backend probes: 12 passed. Electron typecheck passed.
- Both uv locks, scoped lint, Bash syntax, and whitespace checks passed.
- Cold activation, corrupt-app repair, offline staging, and relocation ran.
- Built and exercised the Nix PM runtime and standalone YAML merge script.
Six broader caller test files retain the same 24 failing test IDs as an
archive of HEAD. The existing real-home guard blocks those tests before
they can exercise the affected paths. No full-suite pass is claimed.
Native Windows signing and full Bionic package execution remain unverified.
