mirror of https://github.com/databricks/cli.git
128 lines
3.1 KiB
Go
128 lines
3.1 KiB
Go
package filer
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
"path"
|
|
"strings"
|
|
|
|
"github.com/databricks/databricks-sdk-go"
|
|
"github.com/databricks/databricks-sdk-go/apierr"
|
|
"github.com/databricks/databricks-sdk-go/client"
|
|
"github.com/databricks/databricks-sdk-go/service/workspace"
|
|
"golang.org/x/exp/slices"
|
|
)
|
|
|
|
// WorkspaceFilesClient implements the Files-in-Workspace API.
|
|
type WorkspaceFilesClient struct {
|
|
workspaceClient *databricks.WorkspaceClient
|
|
apiClient *client.DatabricksClient
|
|
|
|
// File operations will be relative to this path.
|
|
root RootPath
|
|
}
|
|
|
|
func NewWorkspaceFilesClient(w *databricks.WorkspaceClient, root string) (Filer, error) {
|
|
apiClient, err := client.New(w.Config)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &WorkspaceFilesClient{
|
|
workspaceClient: w,
|
|
apiClient: apiClient,
|
|
|
|
root: NewRootPath(root),
|
|
}, nil
|
|
}
|
|
|
|
func (w *WorkspaceFilesClient) Write(ctx context.Context, name string, reader io.Reader, mode ...WriteMode) error {
|
|
absPath, err := w.root.Join(name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Remove leading "/" so we can use it in the URL.
|
|
overwrite := slices.Contains(mode, OverwriteIfExists)
|
|
urlPath := fmt.Sprintf(
|
|
"/api/2.0/workspace-files/import-file/%s?overwrite=%t",
|
|
strings.TrimLeft(absPath, "/"),
|
|
overwrite,
|
|
)
|
|
|
|
// Buffer the file contents because we may need to retry below and we cannot read twice.
|
|
body, err := io.ReadAll(reader)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
err = w.apiClient.Do(ctx, http.MethodPost, urlPath, body, nil)
|
|
|
|
// If we got an API error we deal with it below.
|
|
aerr, ok := err.(apierr.APIError)
|
|
if !ok {
|
|
return err
|
|
}
|
|
|
|
// This API returns a 404 if the parent directory does not exist.
|
|
if aerr.StatusCode == http.StatusNotFound {
|
|
if !slices.Contains(mode, CreateParentDirectories) {
|
|
return NoSuchDirectoryError{path.Dir(absPath)}
|
|
}
|
|
|
|
// Create parent directory.
|
|
err = w.workspaceClient.Workspace.MkdirsByPath(ctx, path.Dir(absPath))
|
|
if err != nil {
|
|
return fmt.Errorf("unable to mkdir to write file %s: %w", absPath, err)
|
|
}
|
|
|
|
// Retry without CreateParentDirectories mode flag.
|
|
return w.Write(ctx, name, bytes.NewReader(body), sliceWithout(mode, CreateParentDirectories)...)
|
|
}
|
|
|
|
// This API returns 409 if the file already exists.
|
|
if aerr.StatusCode == http.StatusConflict {
|
|
return FileAlreadyExistsError{absPath}
|
|
}
|
|
|
|
return err
|
|
}
|
|
|
|
func (w *WorkspaceFilesClient) Read(ctx context.Context, name string) (io.Reader, error) {
|
|
absPath, err := w.root.Join(name)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Remove leading "/" so we can use it in the URL.
|
|
urlPath := fmt.Sprintf(
|
|
"/api/2.0/workspace-files/%s",
|
|
strings.TrimLeft(absPath, "/"),
|
|
)
|
|
|
|
// Update to []byte after https://github.com/databricks/databricks-sdk-go/pull/247 is merged.
|
|
var res json.RawMessage
|
|
err = w.apiClient.Do(ctx, http.MethodGet, urlPath, nil, &res)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return bytes.NewReader(res), nil
|
|
}
|
|
|
|
func (w *WorkspaceFilesClient) Delete(ctx context.Context, name string) error {
|
|
absPath, err := w.root.Join(name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return w.workspaceClient.Workspace.Delete(ctx, workspace.Delete{
|
|
Path: absPath,
|
|
Recursive: false,
|
|
})
|
|
}
|