| // Copyright (C) 2016 The Android Open Source Project |
| // |
| // 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 git |
| |
| import ( |
| "bytes" |
| "fmt" |
| "io" |
| "os/exec" |
| |
| "android.googlesource.com/platform/tools/gpu/client/shell" |
| "android.googlesource.com/platform/tools/gpu/framework/log" |
| ) |
| |
| var exe string |
| |
| // Git is a go-wrapper for the git version control system. |
| type Git struct { |
| exe string |
| wd string |
| } |
| |
| // New returns a new Git instance targeting the working directory wd. |
| func New(wd string) (Git, error) { |
| if exe == "" { |
| path, err := exec.LookPath("git") |
| if err != nil { |
| return Git{}, fmt.Errorf("Couldn't find git: %v", err) |
| } |
| exe = path |
| } |
| |
| return Git{ |
| wd: wd, |
| exe: exe, |
| }, nil |
| } |
| |
| func (g Git) run(ctx log.Context, args ...interface{}) (string, string, error) { |
| return g.runWithStdin(ctx, nil, args...) |
| } |
| |
| func (g Git) runWithStdin(ctx log.Context, stdin io.Reader, args ...interface{}) (string, string, error) { |
| argstrs := make([]string, len(args)) |
| for i := range args { |
| argstrs[i] = fmt.Sprint(args[i]) |
| } |
| stdout := &bytes.Buffer{} |
| stderr := &bytes.Buffer{} |
| cmd := shell.Command("git", argstrs...).In(g.wd).Read(stdin).Capture(stdout, stderr) |
| err := cmd.Run(ctx) |
| return stdout.String(), stderr.String(), err |
| } |