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buildbinary.go
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buildbinary.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 cmd
import (
"bytes"
"context"
"fmt"
"os"
"path/filepath"
"sort"
"strings"
"cuelang.org/go/cue/ast"
"cuelang.org/go/cue/format"
specs "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
"namespacelabs.dev/foundation/internal/artifacts/oci"
"namespacelabs.dev/foundation/internal/artifacts/registry"
"namespacelabs.dev/foundation/internal/build"
"namespacelabs.dev/foundation/internal/build/assets"
"namespacelabs.dev/foundation/internal/build/binary"
"namespacelabs.dev/foundation/internal/cli/fncobra"
"namespacelabs.dev/foundation/internal/compute"
"namespacelabs.dev/foundation/internal/console"
"namespacelabs.dev/foundation/internal/fnerrors"
"namespacelabs.dev/foundation/internal/parsing"
"namespacelabs.dev/foundation/internal/runtime/docker"
"namespacelabs.dev/foundation/schema"
"namespacelabs.dev/foundation/std/cfg"
"namespacelabs.dev/foundation/std/pkggraph"
"namespacelabs.dev/foundation/std/tasks"
)
func NewBuildBinaryCmd() *cobra.Command {
var (
baseRepository string
buildOpts buildOpts
env cfg.Context
cmdLocs fncobra.Locations
)
return fncobra.
Cmd(&cobra.Command{
Use: "build-binary [path/to/package]...",
Short: "Builds the specified tool binary.",
Args: cobra.ArbitraryArgs,
}).
WithFlags(func(flags *pflag.FlagSet) {
flags.Var(build.BuildPlatformsVar{}, "build_platforms", "Allows the runtime to be instructed to build for a different set of platforms; by default we only build for the development host.")
flags.BoolVar(&buildOpts.publishToDocker, "docker", false, "If set to true, don't push to registries, but to local docker.")
flags.StringVar(&baseRepository, "base_repository", baseRepository, "If set, overrides the registry we'll upload the images to.")
flags.BoolVar(&buildOpts.outputPrebuilts, "output_prebuilts", false, "If true, also outputs a prebuilt configuration which can be embedded in your workspace configuration.")
flags.StringVar(&buildOpts.outputPath, "output_to", "", "If set, a list of all binaries is emitted to the specified file.")
}).
With(
fncobra.ParseEnv(&env),
fncobra.ParseLocations(&cmdLocs, &env, fncobra.ParseLocationsOpts{ReturnAllIfNoneSpecified: true, SupportPackageRef: true})).
Do(func(ctx context.Context) error {
registry, err := registry.GetRegistry(ctx, env)
if err != nil {
return err
}
return buildLocations(ctx, env, registry, cmdLocs, baseRepository, buildOpts)
})
}
type buildOpts struct {
publishToDocker bool
outputPrebuilts bool
outputPath string
}
const orchTool = "namespacelabs.dev/foundation/orchestration/server/tool"
func buildLocations(ctx context.Context, env cfg.Context, reg registry.Manager, locs fncobra.Locations, baseRepository string, opts buildOpts) error {
pl := parsing.NewPackageLoader(env)
var pkgs []*pkggraph.Package
for _, loc := range locs.Refs {
if !locs.UserSpecified && loc.AsPackageName().Equals(orchTool) {
// Skip the orchestration server tool by default.
// TODO scale this if we see a need.
continue
}
pkg, err := pl.LoadByName(ctx, loc.AsPackageName())
if err != nil {
return err
}
if len(pkg.Binaries) > 0 {
pkgs = append(pkgs, pkg)
} else if locs.UserSpecified {
return fnerrors.NewWithLocation(loc, "no binary found in package")
}
}
sort.Slice(pkgs, func(i, j int) bool {
return strings.Compare(pkgs[i].PackageName().String(), pkgs[j].PackageName().String()) < 0
})
sealedCtx := pkggraph.MakeSealedContext(env, pl.Seal())
var imgOpts binary.BuildImageOpts
imgOpts.UsePrebuilts = false
imgOpts.Platforms = []specs.Platform{docker.HostPlatform()}
var images []compute.Computable[Binary]
for _, pkg := range pkgs {
var resolvables []compute.Computable[oci.ResolvableImage]
// TODO: allow to choose what binary to build within a package.
for _, b := range pkg.Binaries {
bin, err := binary.Plan(ctx, pkg, b.Name, sealedCtx, assets.AvailableBuildAssets{}, imgOpts)
if err != nil {
return err
}
image, err := bin.Image(ctx, sealedCtx)
if err != nil {
return err
}
resolvables = append(resolvables, image)
}
for _, image := range resolvables {
var repository compute.Computable[oci.RepositoryWithParent]
if baseRepository != "" {
repository = registry.StaticRepository(nil, filepath.Join(baseRepository, pkg.PackageName().String()), oci.RegistryAccess{})
} else {
repository = reg.AllocateName(pkg.PackageName().String())
}
var img compute.Computable[oci.ImageID]
if opts.publishToDocker {
img = docker.PublishImage(repository, image)
} else {
img = oci.PublishResolvable(repository, image, nil)
}
images = append(images, fromImage(pkg.PackageName(), img))
}
}
res, err := compute.Get(ctx, compute.Collect(tasks.Action("fn.build-binary"), images...))
if err != nil {
return err
}
if opts.outputPath != "" {
out := &bytes.Buffer{}
for _, r := range res.Value {
fmt.Fprintf(out, "%s\n", r.Value.img)
}
if err := os.WriteFile(opts.outputPath, out.Bytes(), 0644); err != nil {
return fnerrors.New("failed to write %q: %w", opts.outputPath, err)
}
}
if len(res.Value) == 1 {
fmt.Fprintf(console.Stdout(ctx), "%s\n", res.Value[0].Value.img)
} else {
for _, r := range res.Value {
fmt.Fprintf(console.Stdout(ctx), "%s: %s\n", r.Value.pkg, r.Value.img)
}
}
if opts.outputPrebuilts && len(res.Value) > 0 {
var digestFields []interface{}
for _, r := range res.Value {
digestFields = append(digestFields, &ast.Field{
Label: ast.NewString(r.Value.pkg.String()),
Value: ast.NewString(r.Value.img.Digest),
})
}
p := ast.NewStruct(&ast.Field{
Label: ast.NewIdent("prebuilts"),
Value: ast.NewStruct(&ast.Field{
Label: ast.NewIdent("digest"),
Value: ast.NewStruct(digestFields...),
}, &ast.Field{
Label: ast.NewIdent("baseRepository"),
Value: ast.NewString(baseRepository),
}),
})
formatted, err := format.Node(p)
if err != nil {
return err
}
fmt.Fprintf(console.Stdout(ctx), "%s\n", formatted)
return nil
}
return nil
}
type Binary struct {
pkg schema.PackageName // TODO sufficient key? What about multiple bins in one package?
img oci.ImageID
}
func fromImage(pkg schema.PackageName, img compute.Computable[oci.ImageID]) compute.Computable[Binary] {
return &transformImg{pkg: pkg, img: img}
}
type transformImg struct {
pkg schema.PackageName
img compute.Computable[oci.ImageID]
compute.LocalScoped[Binary]
}
func (i *transformImg) Action() *tasks.ActionEvent {
return tasks.Action("transform.img")
}
func (i *transformImg) Inputs() *compute.In {
return compute.Inputs().Stringer("pkg", i.pkg).Computable("img", i.img)
}
func (i *transformImg) Output() compute.Output {
return compute.Output{NotCacheable: true}
}
func (i *transformImg) Compute(ctx context.Context, deps compute.Resolved) (Binary, error) {
img := compute.MustGetDepValue(deps, i.img, "img")
return Binary{pkg: i.pkg, img: img}, nil
}