mirror of
https://github.com/hasura/graphql-engine.git
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8cee3c53b9
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/7492 GitOrigin-RevId: 5b76d0a970193da4412ff1b595caec23996f265c
100 lines
2.9 KiB
Go
100 lines
2.9 KiB
Go
package commands
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import (
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"fmt"
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"io/ioutil"
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"github.com/hasura/graphql-engine/cli/v2"
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"github.com/hasura/graphql-engine/cli/v2/internal/errors"
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"github.com/spf13/cobra"
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)
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const longHelpMetadataExportCmd = `Export Hasura Metadata and save it in the` + " ``/metadata``" + ` directory.
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The output is a collection of yaml files which captures all the Metadata required
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by the GraphQL Engine. This includes info about tables that are tracked,
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permission rules, relationships, and event triggers that are defined
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on those tables.
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Further reading:
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- https://hasura.io/docs/latest/migrations-metadata-seeds/manage-metadata/
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- https://hasura.io/docs/latest/migrations-metadata-seeds/metadata-format/
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`
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func newMetadataExportCmd(ec *cli.ExecutionContext) *cobra.Command {
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opts := &MetadataExportOptions{
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EC: ec,
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}
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metadataExportCmd := &cobra.Command{
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Use: "export",
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Short: "Export Hasura GraphQL Engine Metadata from the database",
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Example: ` # Export metadata and save it in migrations/metadata.yaml file:
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hasura metadata export
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# Use with admin secret:
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hasura metadata export --admin-secret "<admin-secret>"
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# Export metadata to another instance specified by the flag:
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hasura metadata export --endpoint "<endpoint>"`,
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SilenceUsage: true,
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RunE: func(cmd *cobra.Command, args []string) error {
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op := genOpName(cmd, "RunE")
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if len(opts.output) == 0 {
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ec.Spin("Exporting metadata...")
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}
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err := opts.Run()
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ec.Spinner.Stop()
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if err != nil {
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return errors.E(op, err)
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}
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if len(opts.output) == 0 {
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ec.Logger.Info("Metadata exported")
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}
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return nil
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},
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Long: longHelpMetadataExportCmd,
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}
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f := metadataExportCmd.Flags()
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f.StringVarP(&opts.output, "output", "o", "", `write metadata to standard output in given format for exported metadata (note: this won't modify project metadata) Allowed values: json, yaml")`)
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return metadataExportCmd
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}
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type MetadataExportOptions struct {
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EC *cli.ExecutionContext
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output string
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}
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func (o *MetadataExportOptions) Run() error {
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var op errors.Op = "commands.MetadataExportOptions.Run"
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if len(o.output) != 0 {
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if err := getMetadataFromServerAndWriteToStdoutByFormat(o.EC, rawOutputFormat(o.output)); err != nil {
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return errors.E(op, err)
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}
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return nil
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}
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if err := getMetadataModeHandler(o.EC.MetadataMode).Export(o); err != nil {
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return errors.E(op, err)
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}
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return nil
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}
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func getMetadataFromServerAndWriteToStdoutByFormat(ec *cli.ExecutionContext, format rawOutputFormat) error {
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var op errors.Op = "commands.getMetadataFromServerAndWriteToStdoutByFormat"
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metadataReader, err := cli.GetCommonMetadataOps(ec).ExportMetadata()
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if err != nil {
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return errors.E(op, fmt.Errorf("failed to export metadata: %w", err))
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}
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jsonMetadata, err := ioutil.ReadAll(metadataReader)
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if err != nil {
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return errors.E(op, fmt.Errorf("reading metadata failed: %w", err))
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}
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if err := writeByOutputFormat(ec.Stdout, jsonMetadata, format); err != nil {
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return errors.E(op, err)
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}
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return nil
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}
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