hyperhive/hive-types
Repository files (latest commit first)
Filename Latest commit message Latest commit date
atlas 27932ec631 types: let nix own the reserved-name blacklist
One list, in nix/reserved-names.nix, handed to everything that needs it
as HIVE_RESERVED_NAMES. Keeping it current becomes a config change
rather than a rebuild, and hive names and agent names -- one namespace
going forward -- are checked against the same file: swarm-otel.nix's
hand-written reservedOwners is gone.

Whitespace-separated rather than JSON, deliberately, unlike the
structured env vars beside it. Every entry is an Ident ([a-z0-9-]), so
whitespace cannot occur inside a name and the encoding is provably
lossless; JSON would mean either a parser dependency in a crate whose
purpose is to have none, or a copy of the parse in every consumer.

An UNSET variable is not "nothing is reserved". Both creation sites log
an error and return a warning saying the check did not run, so a
misconfigured deployment says so instead of silently accepting every
name. A blank value folds into unset: nix always renders a non-empty
list, so present-but-empty is a rendering fault, not a declaration.

Two guards whose subject moved out of their own file now assert their
own case is still in it, because a guard that can be retired by an edit
elsewhere is not a guard:

- swarm-otel.nix asserts reserved-names.nix still contains its
  swarmTierName.
- hive-sh4re's sentinel drift test PANICS when the variable is missing
  rather than skipping -- a drift test that quietly does nothing still
  reports green. checks.nix and devshell.nix both export it so CI and a
  local cargo test agree. Verified as a pair: with the variable set, 8
  tests pass; with it unset, exactly the 4 drift tests fail and the
  unrelated ones still pass.
2026-08-27 16:36:42 +02:00
..
src types: let nix own the reserved-name blacklist 2026-08-27 16:36:42 +02:00
Cargo.toml docs(#2627): add READMEs for the remaining infra crates 2026-07-23 13:16:29 +02:00
README.md docs(#2627): add READMEs for the remaining infra crates 2026-07-23 13:16:29 +02:00

hive-types

Foundational shared newtypes for the hyperhive workspace. A zero-dependency (bar serde) leaf crate, so every wire-type crate (hive-sh4re, hive-host-sock, hive-core-agent-sock) and both binaries (hive-c0re, hivectl) can share them without cross-crate coupling and without growing hive-sh4re.

What's here

  • Ident — a validated agent-name newtype. Typing agent-name fields as Ident (rather than bare String) gets serde-validated parsing at the socket boundary for free: a malformed name is rejected at deserialize time instead of flowing into a handler that has to re-validate by hand.

The crate is deliberately a leaf with the smallest possible dependency footprint so anything in the workspace can depend on it. See docs/conventions.md ("identity = socket") for how agent identity is modelled across the sockets.