first working version using s3Client.PutObject

Signed-off-by: Jakub Sokołowski <jakub@status.im>

go.mod

@@ -1,3 +1,7 @@
 module github.com/status-im/go-s3up
 
 go 1.17
+
+require github.com/aws/aws-sdk-go v1.42.32
+
+require github.com/jmespath/go-jmespath v0.4.0 // indirect

go.sum

@@ -0,0 +1,17 @@
+github.com/aws/aws-sdk-go v1.42.32 h1:YRe7du5KeSa2jHKEccOSL6/1fNM1Qaj0JqSGTdmtaws=
+github.com/aws/aws-sdk-go v1.42.32/go.mod h1:OGr6lGMAKGlG9CVrYnWYDKIyb829c6EVBRjxqjmPepc=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/jmespath/go-jmespath v0.4.0 h1:BEgLn5cpjn8UN1mAw4NjwDrS35OdebyEtFe+9YPoQUg=
+github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHWvzYPziyZiYoo=
+github.com/jmespath/go-jmespath/internal/testify v1.5.1/go.mod h1:L3OGu8Wl2/fWfCI6z80xFu9LTZmf1ZRjMHUOPmWr69U=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+golang.org/x/net v0.0.0-20211216030914-fe4d6282115f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

main.go

@@ -0,0 +1,97 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/s3"
+)
+
+var l *log.Logger
+
+var (
+	target   string
+	acl      string
+	bucket   string
+	region   string
+	endpoint string
+	keyid    string
+	secret   string
+)
+
+const helpMessage string = `
+This is a simple S3-compatible upload CLI tool.
+
+`
+
+func envVar(key string, defaultVal string) string {
+	if val, ok := os.LookupEnv(key); ok {
+		return val
+	}
+	return defaultVal
+}
+
+func flagsInit() {
+	defaultUsage := flag.Usage
+	flag.Usage = func() {
+		fmt.Printf(strings.Trim(helpMessage, "\t "))
+		defaultUsage()
+	}
+
+	flag.StringVar(&target, "target", "", "Path of file to upload.")
+	flag.StringVar(&acl, "acl", "private", "Type of permission for file.")
+	flag.StringVar(&bucket, "bucket", "", "Name of bucket to upload to.")
+	flag.StringVar(&region, "region", envVar("AWS_DEFAULT_REGION", "ams3"), "Name of region to upload to.")
+	flag.StringVar(&endpoint, "endpoint", envVar("AWS_DEFAULT_ENDPOINT", "ams3.digitaloceanspaces.com"), "S3 API endpoint.")
+	flag.StringVar(&keyid, "keyid", envVar("AWS_ACCESS_KEY_ID", ""), "API key ID.")
+	flag.StringVar(&secret, "secret", envVar("AWS_SECRET_ACCESS_KEY", ""), "API secret key.")
+	flag.Parse()
+}
+
+func main() {
+	l = log.New(os.Stderr, "", log.Lshortfile)
+
+	flagsInit()
+
+	if len(keyid) == 0 {
+		l.Println("Provide -keyid flag or AWS_ACCESS_KEY_ID env var")
+		os.Exit(1)
+	}
+	if len(secret) == 0 {
+		l.Println("Provide -secret flag or AWS_SECRET_ACCESS_KEY env var")
+		os.Exit(1)
+	}
+
+	s3Config := &aws.Config{
+		Credentials: credentials.NewStaticCredentials(keyid, secret, ""),
+		Endpoint:    aws.String(endpoint),
+		Region:      aws.String(region),
+	}
+
+	newSession := session.New(s3Config)
+	s3Client := s3.New(newSession)
+
+	file, err := os.Open(target)
+	if err != nil {
+		l.Println("Failed to open file: ", err)
+		os.Exit(1)
+	}
+
+	object := s3.PutObjectInput{
+		Bucket: aws.String(bucket),
+		Key:    aws.String(target),
+		ACL:    aws.String(acl),
+		Body:   file,
+	}
+
+	_, err = s3Client.PutObject(&object)
+	if err != nil {
+		fmt.Println(err.Error())
+	}
+}