graphql-engine/cli/commands/seed_create.go

105 lines
2.8 KiB
Go

package commands
import (
"bytes"
"github.com/hasura/graphql-engine/cli/migrate"
"github.com/pkg/errors"
"github.com/spf13/afero"
"github.com/spf13/cobra"
"github.com/hasura/graphql-engine/cli"
"github.com/hasura/graphql-engine/cli/metadata/actions/editor"
"github.com/hasura/graphql-engine/cli/seed"
)
type SeedNewOptions struct {
EC *cli.ExecutionContext
// filename for the new seed file
SeedName string
// table name if seed file has to be created from a database table
FromTableNames []string
// seed file that was created
FilePath string
}
func newSeedCreateCmd(ec *cli.ExecutionContext) *cobra.Command {
opts := SeedNewOptions{
EC: ec,
}
cmd := &cobra.Command{
Use: "create seed_name",
Short: "create a new seed file",
Example: ` # Create a new seed file and use editor to add SQL:
hasura seed create new_table_seed
# Create a new seed by exporting data from tables already present in the database:
hasura seed create table1_seed --from-table table1
# Export data from multiple tables:
hasura seed create tables_seed --from-table table1 --from-table table2`,
Args: cobra.ExactArgs(1),
SilenceUsage: false,
PreRunE: func(cmd *cobra.Command, args []string) error {
return ec.Validate()
},
RunE: func(cmd *cobra.Command, args []string) error {
opts.SeedName = args[0]
err := opts.Run()
if err != nil {
return err
}
ec.Logger.WithField("file", opts.FilePath).Info("created seed file successfully")
return nil
},
}
cmd.Flags().StringArrayVar(&opts.FromTableNames, "from-table", []string{}, "name of table from which seed file has to be initialized")
return cmd
}
func (o *SeedNewOptions) Run() error {
createSeedOpts := seed.CreateSeedOpts{
UserProvidedSeedName: o.SeedName,
DirectoryPath: o.EC.SeedsDirectory,
}
// If we are initializing from a database table
// create a hasura client and add table name opts
if createSeedOpts.Data == nil {
if len(o.FromTableNames) > 0 {
migrateDriver, err := migrate.NewMigrate(ec, true)
if err != nil {
return errors.Wrap(err, "cannot initialize migrate driver")
}
// Send the query
body, err := migrateDriver.ExportDataDump(o.FromTableNames)
if err != nil {
return errors.Wrap(err, "exporting seed data")
}
createSeedOpts.Data = bytes.NewReader(body)
} else {
const defaultText = ""
data, err := editor.CaptureInputFromEditor(editor.GetPreferredEditorFromEnvironment, defaultText, "*.sql")
if err != nil {
return errors.Wrap(err, "cannot find default editor from env")
}
createSeedOpts.Data = bytes.NewReader(data)
}
}
fs := afero.NewOsFs()
filepath, err := seed.CreateSeedFile(fs, createSeedOpts)
if err != nil || filepath == nil {
return errors.Wrap(err, "failed to create seed file")
}
o.FilePath = *filepath
return nil
}