| // Copyright 2019 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package artifacts |
| |
| import ( |
| "context" |
| "fmt" |
| "strings" |
| |
| "cloud.google.com/go/storage" |
| "google.golang.org/api/iterator" |
| ) |
| |
| // Directory is a handle to a Cloud Storage "directory". It provides a minimal |
| // filesystem-like interface for a Cloud Storage object hierarchy where "/" is used as the |
| // path separator. Any methods added to this struct are forward to other directory types. |
| type Directory struct { |
| bucket *storage.BucketHandle |
| root string |
| } |
| |
| // Object returns a handle to the given object within this directory. path is the path to |
| // the object relative to this directory. |
| func (d *Directory) Object(path string) *storage.ObjectHandle { |
| path = fmt.Sprintf("%s/%s", d.root, path) |
| return d.bucket.Object(path) |
| } |
| |
| // List lists all of the objects in this directory. |
| func (d *Directory) List(ctx context.Context) ([]string, error) { |
| prefix := strings.Join([]string{d.root}, "/") |
| iter := d.bucket.Objects(ctx, &storage.Query{ |
| Prefix: prefix, |
| }) |
| |
| var items []string |
| for { |
| attrs, err := iter.Next() |
| if err == iterator.Done { |
| break |
| } |
| if err != nil { |
| return nil, err |
| } |
| items = append(items, strings.TrimPrefix(attrs.Name, prefix+"/")) |
| } |
| |
| return items, nil |
| } |
| |
| // CD returns a handle to some child Directory of this Directory. It is up to the caller |
| // to ensure that child exists and is actually a directory. |
| func (d *Directory) cd(child string) *Directory { |
| return &Directory{ |
| bucket: d.bucket, |
| root: fmt.Sprintf("%s/%s", d.root, child), |
| } |
| } |
| |
| // BuildDirectory represents a Fuchsia CI build's artifact directory. Refer to the |
| // layout in doc.go for the layout of this directory. When amending the layout, prefer |
| // adding methods to create new subdirectories on this type instead of calling Object() |
| // with paths containing slashes. This encourages all clients of this package create |
| // objects within this BuildDirectory using the same layout. |
| type BuildDirectory struct { |
| *Directory |
| } |
| |
| // Test returns the TestDirectory containing artifacts for a particular test. The name is |
| // normalized according to normalizePathSegment. |
| func (d BuildDirectory) Test(name string) *TestDirectory { |
| subdir := fmt.Sprintf("tests/%s", normalizePathSegment(name)) |
| return &TestDirectory{d.Directory.cd(subdir)} |
| } |
| |
| // TestDirectory contains artifacts for a particular test. |
| type TestDirectory struct { |
| *Directory |
| } |
| |
| // Env returns a Directory for objects relevant to an execution of this TestDirectory's |
| // test in a particular environment. The name is normalized according to |
| // normalizePathSegment. |
| func (d TestDirectory) Env(name string) *Directory { |
| return d.Directory.cd(normalizePathSegment(name)) |
| } |