mirror of
https://github.com/webinstall/webi-installers.git
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6687cad126
Drop VariantTagger interface and map-based lookup. Each per-installer package now exports a plain TagVariants function. webicached dispatches via a switch on package name, consistent with fetchRaw and classifyPackage.
67 lines
2.1 KiB
Go
67 lines
2.1 KiB
Go
// Package storage defines the interface for reading and writing
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// classified release assets.
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//
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// webid reads assets through [Store]. webicached writes them through
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// [RefreshTx], obtained from [Store.BeginRefresh].
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//
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// The two implementations are fsstore (filesystem JSON, compatible with
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// the Node.js _cache/ format) and pgstore (PostgreSQL, future).
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package storage
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import (
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"context"
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"time"
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)
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// Asset is a single downloadable file — one entry in a release.
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// A release like "bat v0.26.1" has many assets (one per platform/format).
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//
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// No JSON tags — serialization goes through [LegacyAsset] for Node.js
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// compat, or through a future v2 format.
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type Asset struct {
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Filename string
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Version string
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LTS bool
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Channel string
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Date string
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OS string
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Arch string
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Libc string
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Format string
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Download string
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Extra string // extra version info for sorting (e.g. build metadata)
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Variants []string // build qualifiers: "installer", "rocm", "jetpack5", "fxdependent", etc.
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}
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// PackageData is the full set of assets for a package, plus metadata.
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type PackageData struct {
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Assets []Asset
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UpdatedAt time.Time
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}
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// Store is the read/write interface for release asset storage.
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type Store interface {
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// Load returns all assets for a package, or nil if the package
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// is not cached. The returned data may be stale — check UpdatedAt.
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Load(ctx context.Context, pkg string) (*PackageData, error)
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// BeginRefresh starts a write transaction for a package.
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// Write assets via [RefreshTx.Put], then call Commit to atomically
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// replace the stored data. Call Rollback to discard.
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BeginRefresh(ctx context.Context, pkg string) (RefreshTx, error)
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}
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// RefreshTx is a write transaction for replacing a package's assets.
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type RefreshTx interface {
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// Put stages assets to be written. May be called multiple times
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// to append assets incrementally.
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Put(assets []Asset) error
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// Commit atomically replaces the package's stored assets with
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// everything staged via Put.
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Commit(ctx context.Context) error
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// Rollback discards all staged data.
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Rollback() error
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}
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