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feat(core): initial implementation — launcher, logz, xerrors, valid Introduces `code.nochebuena.dev/einherjar/core` — the foundational implementation module of the Einherjar framework. Provides four sub-packages that together cover every service's baseline needs: lifecycle management, structured logging, typed errors, and struct validation. - launcher: Launcher interface — three-phase managed lifecycle (OnInit → BeforeStart hooks → OnStart → OS signal wait → OnStop in reverse). Accepts lifecycle.Component and logging.Logger from contracts. Prints an ASCII art banner at startup (EINHERJAR_BANNER=off to suppress). Banner includes core version via runtime/debug.ReadBuildInfo() and a loaded-module list for every registered component that implements observability.Identifiable. Config struct with EINHERJAR_COMPONENT_STOP_TIMEOUT env tag (caarlos0/env syntax, default 15s). - logz: Logger implementation backed by log/slog. Returns contracts/logging.Logger. Detects errs.CodedError and errs.ContextualError (from contracts/errs) to enrich log records automatically — replaces the private duck-typed bridge from micro-lib. Context helpers: WithRequestID, WithField, WithFields, GetRequestID. Config struct with EINHERJAR_LOG_LEVEL (default INFO) and EINHERJAR_LOG_JSON (default false) env tags (caarlos0/env syntax); programmatic-only fields StaticArgs and Writer carry no tags. - xerrors: Typed error codes with context enrichment. Complete gRPC canonical set (16 codes) plus HTTP 410 ErrGone. Adds ErrOutOfRange, ErrAborted, ErrDataLoss over micro-lib. One convenience constructor per code. *Err declares compile-time satisfaction of errs.CodedError and errs.ContextualError. - valid: Struct validation wrapping go-playground/validator/v10. Validator interface + MessageProvider interface with full built-in tag coverage (~150 tags) in both DefaultMessages (English) and SpanishMessages (Spanish). Backend fully hidden; returns *xerrors.Err with ErrInvalidInput or ErrInternal. FieldLevel interface abstracts the backend's field-level access for custom validators. WithCustomValidator registers custom validation tags at construction time; OverrideProvider chains a tag→handler map with a fallback MessageProvider for custom tag messages without re-implementing built-ins. Compliance test enforces CT-6 (at most one exported TypeSpec per file via AST) and verifies behavioural correctness of all four sub-packages, including custom validator registration and OverrideProvider composition. Compile-time var _ assertions prove interface satisfaction. docs: ADR-001 (core module composition), ADR-002 (logz contracts/errs adoption), ADR-003 (Config naming convention and caarlos0/env tag standard)
2026-05-29 15:45:12 +00:00
code.nochebuena.dev/einherjar/contracts v1.0.0 h1:hRudEtOIqU7vwedYLsCh8+9q5dCnKb61qX+zibqImRU=
code.nochebuena.dev/einherjar/contracts v1.0.0/go.mod h1:ccltUtrFb5+MEJdkx2VVEUL+xC5pupVlVVsMM8AlCWI=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/gabriel-vasile/mimetype v1.4.12 h1:e9hWvmLYvtp846tLHam2o++qitpguFiYCKbn0w9jyqw=
github.com/gabriel-vasile/mimetype v1.4.12/go.mod h1:d+9Oxyo1wTzWdyVUPMmXFvp4F9tea18J8ufA774AB3s=
github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
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github.com/go-playground/validator/v10 v10.30.1 h1:f3zDSN/zOma+w6+1Wswgd9fLkdwy06ntQJp0BBvFG0w=
github.com/go-playground/validator/v10 v10.30.1/go.mod h1:oSuBIQzuJxL//3MelwSLD5hc2Tu889bF0Idm9Dg26cM=
github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
golang.org/x/crypto v0.46.0 h1:cKRW/pmt1pKAfetfu+RCEvjvZkA9RimPbh7bhFjGVBU=
golang.org/x/crypto v0.46.0/go.mod h1:Evb/oLKmMraqjZ2iQTwDwvCtJkczlDuTmdJXoZVzqU0=
golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
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golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
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gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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