| /* Copyright 2019 The Bazel Authors. All rights reserved. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package repo |
| |
| import ( |
| "encoding/json" |
| "fmt" |
| "io/ioutil" |
| "sync" |
| |
| "github.com/bazelbuild/bazel-gazelle/label" |
| ) |
| |
| type goDepLockFile struct { |
| ImportPath string |
| GoVersion string |
| GodepVersion string |
| Packages []string |
| Deps []goDepProject |
| } |
| |
| type goDepProject struct { |
| ImportPath string |
| Rev string |
| } |
| |
| func importRepoRulesGoDep(filename string, cache *RemoteCache) ([]Repo, error) { |
| data, err := ioutil.ReadFile(filename) |
| if err != nil { |
| return nil, err |
| } |
| |
| file := goDepLockFile{} |
| |
| if err := json.Unmarshal(data, &file); err != nil { |
| return nil, err |
| } |
| |
| var wg sync.WaitGroup |
| |
| roots := make([]string, len(file.Deps)) |
| errs := make([]error, len(file.Deps)) |
| |
| wg.Add(len(file.Deps)) |
| for i, p := range file.Deps { |
| go func(i int, p goDepProject) { |
| defer wg.Done() |
| rootRepo, _, err := cache.Root(p.ImportPath) |
| if err != nil { |
| errs[i] = err |
| } else { |
| roots[i] = rootRepo |
| } |
| }(i, p) |
| } |
| wg.Wait() |
| |
| var repos []Repo |
| for _, err := range errs { |
| if err != nil { |
| return nil, err |
| } |
| } |
| |
| repoToRev := make(map[string]string) |
| |
| for i, p := range file.Deps { |
| repoRoot := roots[i] |
| if rev, ok := repoToRev[repoRoot]; !ok { |
| repos = append(repos, Repo{ |
| Name: label.ImportPathToBazelRepoName(repoRoot), |
| GoPrefix: repoRoot, |
| Commit: p.Rev, |
| }) |
| repoToRev[repoRoot] = p.Rev |
| } else { |
| if p.Rev != rev { |
| return nil, fmt.Errorf("Repo %s imported at multiple revisions: %s, %s", repoRoot, p.Rev, rev) |
| } |
| } |
| } |
| return repos, nil |
| } |