SergioandClaude Opus 4.7
fe1601e669
Nuevo crate hammer-overlay + integración al CLI. Diseño:
- API: try_overlay(targets, state_root) → OverlayId, status, discard, commit.
- Layout: <state>/<id>/{state.json, mounts/<slug>/{upper,work}}. El manifiesto
permite a `status` enumerar overlays sin estado en memoria.
- commit: desmonta primero, luego cp -a upper→lower por archivo, procesa
whiteouts (char dev 0/0) como remove en el lower. Sin diario aún (Fase 3).
- discard: umount LIFO + rm del state. Idempotente sobre `not mounted`.
- Privilegios: la librería no asume; emite `mount`/`umount` y deja que el
caller los tenga. CLI sin sudo falla con mensaje claro. El daemon de
Fase 5 los obtendrá desde contexto privilegiado.
Tests:
- 6 unit tests (slug, defaults, manifest, errores).
- E2E bajo bwrap+user-ns con CAP_SYS_ADMIN: ciclo try → escribir → commit →
verificar persiste; try → escribir → discard → verificar revertido;
remove en merged → commit → whiteout aplicado al lower. Gateado en
HAMMER_OVERLAY_TESTS=1: por defecto, los kernels deniegan el mount
overlayfs en user-ns no-privilegiado (sysctl/AppArmor); el dev habilita
cuando su entorno lo permite o corre con sudo.
CLI: hammer try [targets…] --state-root, commit <id>, discard <id>, status.
Refactor mínimo: las cmds que no tocan artefactos ya no abren (ni crean) el
store. `hammer status --state-root /tmp` no toca /store.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
45 lines
1.0 KiB
TOML
45 lines
1.0 KiB
TOML
[workspace]
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resolver = "2"
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members = [
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"crates/hammer-core",
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"crates/hammer-build",
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"crates/hammer-overlay",
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"crates/hammer-cli",
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"crates/hammerd",
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]
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[workspace.package]
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version = "0.0.1"
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edition = "2021"
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license = "MIT"
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authors = ["sergio <gerencia@jlsoltech.com>"]
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repository = "https://gitea.gioser.net/sergio/hammer"
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[workspace.dependencies]
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hammer-core = { path = "crates/hammer-core" }
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hammer-build = { path = "crates/hammer-build" }
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hammer-overlay = { path = "crates/hammer-overlay" }
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# shared third-party deps, pinned at the workspace level
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anyhow = "1"
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thiserror = "2"
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serde = { version = "1", features = ["derive"] }
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serde_json = "1"
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serde_yaml = "0.9"
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toml = "0.8"
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blake3 = "1"
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sha2 = "0.10"
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hex = "0.4"
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tempfile = "3"
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clap = { version = "4", features = ["derive"] }
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tracing = "0.1"
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tracing-subscriber = { version = "0.3", features = ["env-filter"] }
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[profile.release]
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# small, static-friendly binaries for the userland
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opt-level = "z"
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lto = true
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codegen-units = 1
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strip = true
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panic = "abort"
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