forked from gobuffalo/pop
/
dump.go
59 lines (54 loc) · 1.18 KB
/
dump.go
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package schema
import (
"errors"
"io"
"os"
"path/filepath"
"github.com/gobuffalo/pop"
"github.com/spf13/cobra"
)
var dumpOptions = struct {
env string
output string
}{}
// DumpCmd dumps out the schema of the selected database.
var DumpCmd = &cobra.Command{
Use: "dump",
Short: "Dumps out the schema of the selected database",
RunE: func(cmd *cobra.Command, args []string) error {
env := cmd.Flag("env")
if env == nil {
return errors.New("env is required")
}
dumpOptions.env = env.Value.String()
c, err := pop.Connect(dumpOptions.env)
if err != nil {
return err
}
var out io.Writer
rollback := func() {}
if dumpOptions.output == "-" {
out = os.Stdout
} else {
err = os.MkdirAll(filepath.Dir(dumpOptions.output), 0755)
if err != nil {
return err
}
out, err = os.Create(dumpOptions.output)
if err != nil {
return err
}
rollback = func() {
os.RemoveAll(dumpOptions.output)
}
}
if err := c.Dialect.DumpSchema(out); err != nil {
rollback()
return err
}
return nil
},
}
func init() {
DumpCmd.Flags().StringVarP(&dumpOptions.output, "output", "o", "./migrations/schema.sql", "The path to dump the schema to.")
}