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main.go
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main.go
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// Copyright (c) 2020 Mercari, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
package main
import (
"context"
"errors"
"fmt"
"os"
"os/signal"
"syscall"
"github.com/cloudspannerecosystem/wrench/cmd"
"github.com/cloudspannerecosystem/wrench/pkg/spanner"
)
func main() {
execute()
}
func execute() {
ctx, cancel := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
defer cancel()
handleError(cmd.Execute(ctx))
}
func handleError(err error) {
if err != nil {
fmt.Fprintf(os.Stderr, "%s\n\t%s\n", err.Error(), errorDetails(err))
os.Exit(1)
}
}
func errorDetails(err error) string {
var se *spanner.Error
if errors.As(err, &se) {
switch se.Code {
case spanner.ErrorCodeCreateClient:
return fmt.Sprintf("Failed to connect to Cloud Spanner, %s", se.Error())
case spanner.ErrorCodeExecuteMigrations, spanner.ErrorCodeMigrationVersionDirty:
return fmt.Sprintf("Failed to execute migration, %s", se.Error())
default:
return fmt.Sprintf("Failed to execute the operation to Cloud Spanner, %s", se.Error())
}
}
var pe *os.PathError
if errors.As(err, &pe) {
return fmt.Sprintf("Invalid file path, %s", pe.Error())
}
if err := errors.Unwrap(err); err != nil {
return err.Error()
}
return "Unknown error..."
}