mirror of
https://github.com/neilotoole/sq.git
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85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
package cli
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import (
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"github.com/neilotoole/sq/drivers/sqlite3"
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"github.com/neilotoole/sq/libsq/source"
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"github.com/spf13/cobra"
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)
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// TODO: dump all this "internal" stuff: make the options as follows: @HANDLE, file, memory
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func newScratchCmd() *cobra.Command {
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cmd := &cobra.Command{
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Use: "scratch [@HANDLE|internal|internal:file|internal:mem|@scratch]",
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// This command is likely to be ditched in favor of a generalized "config" cmd
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// such as "sq config scratchdb=@my1"
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Hidden: true,
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Args: cobra.ExactArgs(1),
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RunE: execScratch,
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Example: ` # get scratch data source
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$ sq scratch
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# set @my1 as scratch data source
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$ sq scratch @my1
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# use the default embedded db
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$ sq scratch internal
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# explicitly specify use of embedded file db
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$ sq scratch internal:file
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# explicitly specify use of embedded memory db
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$ sq scratch internal:mem
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# restore default scratch db (equivalent to "internal")
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$ sq scratch @scratch`,
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Short: "Get or set scratch data source",
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Long: `Get or set scratch data source. The scratch db is used internally by sq for multiple purposes such as
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importing non-SQL data, or cross-database joins. If no argument provided, get the current scratch data
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source. Otherwise, set @HANDLE or an internal db as the scratch data source. The reserved handle "@scratch" resets the
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`,
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}
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return cmd
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}
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func execScratch(cmd *cobra.Command, args []string) error {
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rc := RunContextFrom(cmd.Context())
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cfg := rc.Config
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var src *source.Source
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var err error
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defaultScratch := &source.Source{
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Handle: source.ScratchHandle,
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Location: "internal:file",
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Type: sqlite3.Type,
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}
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if len(args) == 0 {
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// Print the scratch src
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src = cfg.Sources.Scratch()
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if src == nil {
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src = defaultScratch
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}
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return rc.writers.srcw.Source(src)
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}
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// Set the scratch src
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switch args[0] {
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case "internal", "internal:file", "internal:mem":
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// TODO: currently only supports file sqlite3 db, fairly trivial to do mem as well
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_, _ = cfg.Sources.SetScratch("")
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src = defaultScratch
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default:
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src, err = cfg.Sources.SetScratch(args[0])
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if err != nil {
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return err
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}
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}
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err = rc.ConfigStore.Save(rc.Config)
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if err != nil {
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return err
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}
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return rc.writers.srcw.Source(src)
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}
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