databricks-cli/cmd/sync/sync.go

174 lines
4.6 KiB
Go

package sync
import (
"context"
"flag"
"fmt"
"io"
"path/filepath"
stdsync "sync"
"time"
"github.com/databricks/cli/bundle"
"github.com/databricks/cli/bundle/deploy/files"
"github.com/databricks/cli/cmd/root"
"github.com/databricks/cli/libs/flags"
"github.com/databricks/cli/libs/sync"
"github.com/databricks/cli/libs/vfs"
"github.com/spf13/cobra"
)
type syncFlags struct {
// project files polling interval
interval time.Duration
full bool
watch bool
output flags.Output
}
func (f *syncFlags) syncOptionsFromBundle(cmd *cobra.Command, args []string, b *bundle.Bundle) (*sync.SyncOptions, error) {
if len(args) > 0 {
return nil, fmt.Errorf("SRC and DST are not configurable in the context of a bundle")
}
opts, err := files.GetSyncOptions(cmd.Context(), bundle.ReadOnly(b))
if err != nil {
return nil, fmt.Errorf("cannot get sync options: %w", err)
}
opts.Full = f.full
opts.PollInterval = f.interval
return opts, nil
}
func (f *syncFlags) syncOptionsFromArgs(cmd *cobra.Command, args []string) (*sync.SyncOptions, error) {
if len(args) != 2 {
return nil, flag.ErrHelp
}
opts := sync.SyncOptions{
LocalPath: vfs.MustNew(args[0]),
RemotePath: args[1],
Full: f.full,
PollInterval: f.interval,
// We keep existing behavior for VS Code extension where if there is
// no bundle defined, we store the snapshots in `.databricks`.
// The sync code will automatically create this directory if it doesn't
// exist and add it to the `.gitignore` file in the root.
SnapshotBasePath: filepath.Join(args[0], ".databricks"),
WorkspaceClient: root.WorkspaceClient(cmd.Context()),
}
return &opts, nil
}
func New() *cobra.Command {
cmd := &cobra.Command{
Use: "sync [flags] SRC DST",
Short: "Synchronize a local directory to a workspace directory",
Args: root.MaximumNArgs(2),
GroupID: "development",
}
f := syncFlags{
output: flags.OutputText,
}
cmd.Flags().DurationVar(&f.interval, "interval", 1*time.Second, "file system polling interval (for --watch)")
cmd.Flags().BoolVar(&f.full, "full", false, "perform full synchronization (default is incremental)")
cmd.Flags().BoolVar(&f.watch, "watch", false, "watch local file system for changes")
cmd.Flags().Var(&f.output, "output", "type of output format")
// Wrapper for [root.MustWorkspaceClient] that disables loading authentication configuration from a bundle.
mustWorkspaceClient := func(cmd *cobra.Command, args []string) error {
cmd.SetContext(root.SkipLoadBundle(cmd.Context()))
return root.MustWorkspaceClient(cmd, args)
}
cmd.PreRunE = mustWorkspaceClient
cmd.RunE = func(cmd *cobra.Command, args []string) error {
var opts *sync.SyncOptions
var err error
//
// To be uncommented and used once our VS Code extension is bundle aware.
// Until then, this could interfere with extension usage where a `databricks.yml` file is present.
// See https://github.com/databricks/cli/pull/207.
//
// b := bundle.GetOrNil(cmd.Context())
// if b != nil {
// // Run initialize phase to make sure paths are set.
// err = bundle.Apply(cmd.Context(), b, phases.Initialize())
// if err != nil {
// return err
// }
// opts, err = syncOptionsFromBundle(cmd, args, b)
// } else {
opts, err = f.syncOptionsFromArgs(cmd, args)
// }
if err != nil {
return err
}
ctx := cmd.Context()
s, err := sync.New(ctx, *opts)
if err != nil {
return err
}
var outputFunc func(context.Context, <-chan sync.Event, io.Writer)
switch f.output {
case flags.OutputText:
outputFunc = textOutput
case flags.OutputJSON:
outputFunc = jsonOutput
}
var wg stdsync.WaitGroup
if outputFunc != nil {
wg.Add(1)
go func() {
defer wg.Done()
outputFunc(ctx, s.Events(), cmd.OutOrStdout())
}()
}
if f.watch {
err = s.RunContinuous(ctx)
} else {
_, err = s.RunOnce(ctx)
}
s.Close()
wg.Wait()
return err
}
cmd.ValidArgsFunction = func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
cmd.SetContext(root.SkipPrompt(cmd.Context()))
err := mustWorkspaceClient(cmd, args)
if err != nil {
return nil, cobra.ShellCompDirectiveError
}
// No completion in the context of a bundle.
// Source and destination paths are taken from bundle configuration.
b := bundle.GetOrNil(cmd.Context())
if b != nil {
return nil, cobra.ShellCompDirectiveNoFileComp
}
switch len(args) {
case 0:
return nil, cobra.ShellCompDirectiveFilterDirs
case 1:
wsc := root.WorkspaceClient(cmd.Context())
return completeRemotePath(cmd.Context(), wsc, toComplete)
default:
return nil, cobra.ShellCompDirectiveNoFileComp
}
}
return cmd
}