Automatically detect bucket region

cmd/root.go

@@ -38,13 +38,26 @@ var rootCmd = &cobra.Command{
 			os.Exit(1)
 		}
 
-		if ok := s3.IsBucket(*session, bucketName); !ok {
+		region, err := s3.GetBucketRegion(bucketName)
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		session.Session.Config.Region = &region
+
+		ok, err := s3.IsBucket(*session, bucketName)
+		if err != nil {
+			fmt.Println(err)
+			os.Exit(1)
+		}
+
+		if !ok {
 			fmt.Printf("The bucket name `%s` was not found in profile `%s`\n", bucketName, profile)
-			return
-		} else {
-			cli.Grep(session, bucketName, prefix, args[0], ignoreCase)
-			return
+			os.Exit(1)
 		}
+
+		cli.Grep(session, bucketName, prefix, args[0], ignoreCase)
 	},
 }
 

config/aws.go

@@ -1,6 +1,7 @@
 package config
 
 import (
+	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/session"
 )
 
@@ -11,12 +12,18 @@ type AWSSession struct {
 
 // NewAWSParams creates a new AWSSession object
 func NewAWSSession(awsProfile string) (*AWSSession, error) {
-	sess := session.Must(session.NewSessionWithOptions(session.Options{
+	sess, err := session.NewSessionWithOptions(session.Options{
+		Config:            aws.Config{Region: aws.String("us-east-2")},
 		Profile:           awsProfile,
 		SharedConfigState: session.SharedConfigEnable,
-	}))
+	})
+
+	if err != nil {
+		return nil, err
+	}
 
 	return &AWSSession{
 		Session: sess,
 	}, nil
+
 }

go.mod

@@ -1,42 +1,17 @@
 module github.com/dabdada/s3-grep
 
+go 1.19
+
 require (
-	cloud.google.com/go v0.41.0 // indirect
 	github.com/aws/aws-sdk-go v1.20.14
-	github.com/coreos/bbolt v1.3.3 // indirect
-	github.com/coreos/etcd v3.3.13+incompatible // indirect
-	github.com/coreos/go-semver v0.3.0 // indirect
-	github.com/coreos/go-systemd v0.0.0-20190620071333-e64a0ec8b42a // indirect
-	github.com/go-kit/kit v0.9.0 // indirect
-	github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6 // indirect
-	github.com/grpc-ecosystem/grpc-gateway v1.9.3 // indirect
-	github.com/kisielk/errcheck v1.2.0 // indirect
-	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
-	github.com/kr/pty v1.1.8 // indirect
-	github.com/magiconair/properties v1.8.1 // indirect
-	github.com/pelletier/go-toml v1.4.0 // indirect
-	github.com/pkg/errors v0.8.1 // indirect
-	github.com/prometheus/common v0.6.0 // indirect
-	github.com/prometheus/procfs v0.0.3 // indirect
-	github.com/rogpeppe/fastuuid v1.1.0 // indirect
-	github.com/russross/blackfriday v2.0.0+incompatible // indirect
-	github.com/sirupsen/logrus v1.4.2 // indirect
-	github.com/spf13/afero v1.2.2 // indirect
 	github.com/spf13/cobra v0.0.5
-	github.com/spf13/jwalterweatherman v1.1.0 // indirect
-	github.com/spf13/viper v1.4.0 // indirect
-	github.com/stretchr/objx v0.2.0 // indirect
-	github.com/ugorji/go v1.1.7 // indirect
-	go.etcd.io/bbolt v1.3.3 // indirect
-	golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4 // indirect
-	golang.org/x/exp v0.0.0-20190627132806-fd42eb6b336f // indirect
-	golang.org/x/image v0.0.0-20190622003408-7e034cad6442 // indirect
-	golang.org/x/mobile v0.0.0-20190607214518-6fa95d984e88 // indirect
-	golang.org/x/mod v0.1.0 // indirect
+)
+
+require (
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af // indirect
+	github.com/spf13/pflag v1.0.3 // indirect
+	github.com/stretchr/testify v1.3.0 // indirect
 	golang.org/x/net v0.0.0-20190628185345-da137c7871d7 // indirect
-	golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb // indirect
-	golang.org/x/tools v0.0.0-20190702201734-44aeb8b7c377 // indirect
-	google.golang.org/genproto v0.0.0-20190701230453-710ae3a149df // indirect
-	google.golang.org/grpc v1.22.0 // indirect
-	honnef.co/go/tools v0.0.0-20190614002413-cb51c254f01b // indirect
+	golang.org/x/text v0.3.2 // indirect
 )