| // Copyright 2015 The LUCI Authors. |
| // |
| // 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 annotation |
| |
| import ( |
| "os" |
| |
| "go.chromium.org/luci/common/system/environ" |
| ) |
| |
| // Execution describes the high-level execution metadata. |
| type Execution struct { |
| Name string |
| Command []string |
| Dir string |
| Env map[string]string |
| } |
| |
| // ProbeExecution loads Execution parameters by probing the current runtime |
| // environment. |
| func ProbeExecution(argv, env []string, cwd string) *Execution { |
| if env == nil { |
| env = os.Environ() |
| } |
| if cwd == "" { |
| cwd, _ = os.Getwd() |
| } |
| return probeExecutionImpl(argv, env, cwd) |
| } |
| |
| func probeExecutionImpl(argv []string, env []string, cwd string) *Execution { |
| e := &Execution{ |
| Dir: cwd, |
| |
| // Unique-ify the environment variables. |
| Env: environ.New(env).Map(), |
| } |
| e.Command = make([]string, len(argv)) |
| copy(e.Command, argv) |
| |
| return e |
| } |