Files
athens/pkg/storage/s3/getter.go
Nicholas Wiersma d932d50232 chore: lint code with golangci-lint (#1828)
* feat: add golangci-lint linting

* chore: fix linter issues

* feat: add linting into the workflow

* docs: update lint docs

* fix: cr suggestions

* fix: remove old formatting and vetting scripts

* fix: add docker make target

* fix: action go caching

* fix: depreciated actions checkout version

* fix: cr suggestion

* fix: cr suggestions

---------

Co-authored-by: Manu Gupta <manugupt1@gmail.com>
2023-02-24 20:39:17 -08:00

109 lines
3.2 KiB
Go

package s3
import (
"context"
"fmt"
"io"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/gomods/athens/pkg/config"
"github.com/gomods/athens/pkg/errors"
"github.com/gomods/athens/pkg/observ"
"github.com/gomods/athens/pkg/storage"
)
// Info implements the (./pkg/storage).Getter interface.
func (s *Storage) Info(ctx context.Context, module, version string) ([]byte, error) {
const op errors.Op = "s3.Info"
ctx, span := observ.StartSpan(ctx, op.String())
defer span.End()
exists, err := s.Exists(ctx, module, version)
if err != nil {
return nil, errors.E(op, err, errors.M(module), errors.V(version))
}
if !exists {
return nil, errors.E(op, errors.M(module), errors.V(version), errors.KindNotFound)
}
infoReader, err := s.open(ctx, config.PackageVersionedName(module, version, "info"))
if err != nil {
return nil, errors.E(op, err, errors.M(module), errors.V(version))
}
defer func() { _ = infoReader.Close() }()
infoBytes, err := io.ReadAll(infoReader)
if err != nil {
return nil, errors.E(op, err, errors.M(module), errors.V(version))
}
return infoBytes, nil
}
// GoMod implements the (./pkg/storage).Getter interface.
func (s *Storage) GoMod(ctx context.Context, module, version string) ([]byte, error) {
const op errors.Op = "s3.GoMod"
ctx, span := observ.StartSpan(ctx, op.String())
defer span.End()
exists, err := s.Exists(ctx, module, version)
if err != nil {
return nil, errors.E(op, err, errors.M(module), errors.V(version))
}
if !exists {
return nil, errors.E(op, errors.M(module), errors.V(version), errors.KindNotFound)
}
modReader, err := s.open(ctx, config.PackageVersionedName(module, version, "mod"))
if err != nil {
return nil, errors.E(op, err, errors.M(module), errors.V(version))
}
defer func() { _ = modReader.Close() }()
modBytes, err := io.ReadAll(modReader)
if err != nil {
return nil, errors.E(op, fmt.Errorf("could not get new reader for mod file: %w", err), errors.M(module), errors.V(version))
}
return modBytes, nil
}
// Zip implements the (./pkg/storage).Getter interface.
func (s *Storage) Zip(ctx context.Context, module, version string) (storage.SizeReadCloser, error) {
const op errors.Op = "s3.Zip"
ctx, span := observ.StartSpan(ctx, op.String())
defer span.End()
exists, err := s.Exists(ctx, module, version)
if err != nil {
return nil, errors.E(op, err, errors.M(module), errors.V(version))
}
if !exists {
return nil, errors.E(op, errors.M(module), errors.V(version), errors.KindNotFound)
}
zipReader, err := s.open(ctx, config.PackageVersionedName(module, version, "zip"))
if err != nil {
return nil, errors.E(op, err, errors.M(module), errors.V(version))
}
return zipReader, nil
}
func (s *Storage) open(ctx context.Context, path string) (storage.SizeReadCloser, error) {
const op errors.Op = "s3.open"
ctx, span := observ.StartSpan(ctx, op.String())
defer span.End()
getParams := &s3.GetObjectInput{
Bucket: aws.String(s.bucket),
Key: aws.String(path),
}
goo, err := s.s3API.GetObjectWithContext(ctx, getParams)
if err != nil {
return nil, errors.E(op, err)
}
var size int64
if goo.ContentLength != nil {
size = *goo.ContentLength
}
return storage.NewSizer(goo.Body, size), nil
}