| // Copyright 2020 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 build |
| |
| import ( |
| "encoding/json" |
| "errors" |
| "fmt" |
| "os" |
| "path/filepath" |
| |
| "go.fuchsia.dev/fuchsia/tools/lib/osmisc" |
| ) |
| |
| // PrebuiltBinaries represents a set of prebuilt binaries. |
| type PrebuiltBinaries struct { |
| // Name is the name of the set of prebuilt binaries. |
| Name string `json:"package_name` |
| |
| // DebugArchive is an optional pointer to an archive of debug binaries |
| // relating to the prebuilt package. |
| DebugArchive string `json:"debug_archive,omitempty"` |
| |
| // Manifest is the path to a manifest of the associated debug binaries produced |
| // by the build and in the format of binaries.json. |
| Manifest string `json:"manifest"` |
| } |
| |
| // Get returns the list of binaries in enumerated in the associated |
| // binary manifest. |
| // Returns os.ErrIsNotExist if the file does not exist. |
| func (pb *PrebuiltBinaries) Get(buildDir string) ([]Binary, error) { |
| if pb.Manifest == "" { |
| return nil, errors.New("no associated debug binary manifest") |
| } |
| exists, err := osmisc.FileExists(filepath.Join(buildDir, pb.Manifest)) |
| if err != nil { |
| return nil, err |
| } else if !exists { |
| return nil, os.ErrNotExist |
| } |
| return loadBinaries(filepath.Join(buildDir, pb.Manifest)) |
| } |
| |
| // loadPrebuiltBinaries reads in the entries indexed in the given prebuilt package manifest. |
| func loadPrebuiltBinaries(manifest string) ([]PrebuiltBinaries, error) { |
| f, err := os.Open(manifest) |
| if err != nil { |
| return nil, fmt.Errorf("failed to open %s: %w", manifest, err) |
| } |
| defer f.Close() |
| var pkgs []PrebuiltBinaries |
| if err := json.NewDecoder(f).Decode(&pkgs); err != nil { |
| return nil, fmt.Errorf("failed to decode %s: %w", manifest, err) |
| } |
| return pkgs, nil |
| } |