databricks-cli/bundle/artifacts/artifacts.go

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package artifacts
import (
"bytes"
"context"
"crypto/sha256"
"errors"
"fmt"
"os"
"path"
"path/filepath"
"github.com/databricks/cli/bundle"
"github.com/databricks/cli/bundle/artifacts/whl"
"github.com/databricks/cli/bundle/config"
"github.com/databricks/cli/libs/cmdio"
"github.com/databricks/cli/libs/filer"
)
type mutatorFactory = func(name string) bundle.Mutator
var buildMutators map[config.ArtifactType]mutatorFactory = map[config.ArtifactType]mutatorFactory{
config.ArtifactPythonWheel: whl.Build,
}
var uploadMutators map[config.ArtifactType]mutatorFactory = map[config.ArtifactType]mutatorFactory{}
func getBuildMutator(t config.ArtifactType, name string) bundle.Mutator {
mutatorFactory, ok := buildMutators[t]
if !ok {
mutatorFactory = BasicBuild
}
return mutatorFactory(name)
}
func getUploadMutator(t config.ArtifactType, name string) bundle.Mutator {
mutatorFactory, ok := uploadMutators[t]
if !ok {
mutatorFactory = BasicUpload
}
return mutatorFactory(name)
}
// Basic Build defines a general build mutator which builds artifact based on artifact.BuildCommand
type basicBuild struct {
name string
}
func BasicBuild(name string) bundle.Mutator {
return &basicBuild{name: name}
}
func (m *basicBuild) Name() string {
return fmt.Sprintf("artifacts.Build(%s)", m.name)
}
func (m *basicBuild) Apply(ctx context.Context, b *bundle.Bundle) error {
artifact, ok := b.Config.Artifacts[m.name]
if !ok {
return fmt.Errorf("artifact doesn't exist: %s", m.name)
}
cmdio.LogString(ctx, fmt.Sprintf("artifacts.Build(%s): Building...", m.name))
out, err := artifact.Build(ctx)
if err != nil {
return fmt.Errorf("artifacts.Build(%s): %w, output: %s", m.name, err, out)
}
cmdio.LogString(ctx, fmt.Sprintf("artifacts.Build(%s): Build succeeded", m.name))
return nil
}
// Basic Upload defines a general upload mutator which uploads artifact as a library to workspace
type basicUpload struct {
name string
}
func BasicUpload(name string) bundle.Mutator {
return &basicUpload{name: name}
}
func (m *basicUpload) Name() string {
return fmt.Sprintf("artifacts.Upload(%s)", m.name)
}
func (m *basicUpload) Apply(ctx context.Context, b *bundle.Bundle) error {
artifact, ok := b.Config.Artifacts[m.name]
if !ok {
return fmt.Errorf("artifact doesn't exist: %s", m.name)
}
if len(artifact.Files) == 0 {
return fmt.Errorf("artifact source is not configured: %s", m.name)
}
uploadPath, err := getUploadBasePath(b)
if err != nil {
return err
}
client, err := filer.NewWorkspaceFilesClient(b.WorkspaceClient(), uploadPath)
if err != nil {
return err
}
err = uploadArtifact(ctx, artifact, uploadPath, client)
if err != nil {
return fmt.Errorf("artifacts.Upload(%s): %w", m.name, err)
}
return nil
}
func uploadArtifact(ctx context.Context, a *config.Artifact, uploadPath string, client filer.Filer) error {
for i := range a.Files {
f := &a.Files[i]
if f.NeedsUpload() {
filename := filepath.Base(f.Source)
cmdio.LogString(ctx, fmt.Sprintf("artifacts.Upload(%s): Uploading...", filename))
remotePath, err := uploadArtifactFile(ctx, f.Source, uploadPath, client)
if err != nil {
return err
}
cmdio.LogString(ctx, fmt.Sprintf("artifacts.Upload(%s): Upload succeeded", filename))
f.RemotePath = remotePath
}
}
a.NormalisePaths()
return nil
}
// Function to upload artifact file to Workspace
func uploadArtifactFile(ctx context.Context, file string, uploadPath string, client filer.Filer) (string, error) {
raw, err := os.ReadFile(file)
if err != nil {
return "", fmt.Errorf("unable to read %s: %w", file, errors.Unwrap(err))
}
fileHash := sha256.Sum256(raw)
relPath := path.Join(fmt.Sprintf("%x", fileHash), filepath.Base(file))
remotePath := path.Join(uploadPath, relPath)
err = client.Mkdir(ctx, path.Dir(relPath))
if err != nil {
return "", fmt.Errorf("unable to import %s: %w", remotePath, err)
}
err = client.Write(ctx, relPath, bytes.NewReader(raw), filer.OverwriteIfExists, filer.CreateParentDirectories)
if err != nil {
return "", fmt.Errorf("unable to import %s: %w", remotePath, err)
}
return remotePath, nil
}
func getUploadBasePath(b *bundle.Bundle) (string, error) {
artifactPath := b.Config.Workspace.ArtifactsPath
if artifactPath == "" {
return "", fmt.Errorf("remote artifact path not configured")
}
return path.Join(artifactPath, ".internal"), nil
}