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buildfs.go
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buildfs.go
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// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package buildkit
import (
"context"
"io/fs"
"github.com/moby/buildkit/client/llb"
"namespacelabs.dev/foundation/framework/secrets"
"namespacelabs.dev/foundation/internal/build"
"namespacelabs.dev/foundation/internal/compute"
"namespacelabs.dev/foundation/internal/fnerrors"
"namespacelabs.dev/foundation/internal/parsing/platform"
"namespacelabs.dev/foundation/schema"
"namespacelabs.dev/foundation/std/tasks"
)
func MarshalForTarget(ctx context.Context, state llb.State, target build.BuildTarget) (*llb.Definition, error) {
if target.TargetPlatform() == nil {
return nil, fnerrors.InternalError("target platform is missing")
}
return state.Marshal(ctx, llb.Platform(*target.TargetPlatform()))
}
func BuildFilesystem(ctx context.Context, makeClient ClientFactory, target build.BuildTarget, state llb.State, localDirs ...LocalContents) (compute.Computable[fs.FS], error) {
serialized, err := MarshalForTarget(ctx, state, target)
if err != nil {
return nil, err
}
base := &baseRequest[fs.FS]{
sourceLabel: target.SourceLabel(),
sourcePackage: target.SourcePackage(),
makeClient: makeClient,
targetPlatform: target.TargetPlatform(),
req: precomputedReq(&FrontendRequest{Def: serialized, OriginalState: &state}, target),
localDirs: localDirs,
}
return &reqToFS{baseRequest: base}, nil
}
type Input struct {
State llb.State
Secrets []*schema.PackageRef
}
func DeferBuildFilesystem(makeClient ClientFactory, secrets secrets.GroundedSecrets, target build.BuildTarget, state compute.Computable[*Input], localDirs ...LocalContents) compute.Computable[fs.FS] {
base := &baseRequest[fs.FS]{
sourceLabel: target.SourceLabel(),
sourcePackage: target.SourcePackage(),
makeClient: makeClient,
targetPlatform: target.TargetPlatform(),
localDirs: localDirs,
secrets: secrets,
req: compute.Transform("marshal-request", state, func(ctx context.Context, state *Input) (*FrontendRequest, error) {
serialized, err := MarshalForTarget(ctx, state.State, target)
if err != nil {
return nil, err
}
return &FrontendRequest{Def: serialized, OriginalState: &state.State, Secrets: state.Secrets}, nil
}),
}
return &reqToFS{baseRequest: base}
}
type reqToFS struct {
*baseRequest[fs.FS]
}
func (l *reqToFS) Action() *tasks.ActionEvent {
ev := tasks.Action("buildkit.build-fs")
if l.targetPlatform != nil {
ev = ev.Arg("platform", platform.FormatPlatform(*l.targetPlatform))
}
if l.sourcePackage != "" {
return ev.Scope(l.sourcePackage)
}
return ev
}
func (l *reqToFS) Compute(ctx context.Context, deps compute.Resolved) (fs.FS, error) {
c, err := l.makeClient.MakeClient(ctx)
if err != nil {
return nil, err
}
return l.solve(ctx, c, deps, nil, exportToFS())
}