go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/luciexe/legacy/annotee/annotation/execution.go (about)

     1  // Copyright 2015 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package annotation
    16  
    17  import (
    18  	"os"
    19  
    20  	"go.chromium.org/luci/common/system/environ"
    21  )
    22  
    23  // Execution describes the high-level execution metadata.
    24  type Execution struct {
    25  	Name    string
    26  	Command []string
    27  	Dir     string
    28  	Env     map[string]string
    29  }
    30  
    31  // ProbeExecution loads Execution parameters by probing the current runtime
    32  // environment.
    33  func ProbeExecution(argv, env []string, cwd string) *Execution {
    34  	if env == nil {
    35  		env = os.Environ()
    36  	}
    37  	if cwd == "" {
    38  		cwd, _ = os.Getwd()
    39  	}
    40  	return probeExecutionImpl(argv, env, cwd)
    41  }
    42  
    43  func probeExecutionImpl(argv []string, env []string, cwd string) *Execution {
    44  	e := &Execution{
    45  		Dir: cwd,
    46  
    47  		// Unique-ify the environment variables.
    48  		Env: environ.New(env).Map(),
    49  	}
    50  	e.Command = make([]string, len(argv))
    51  	copy(e.Command, argv)
    52  
    53  	return e
    54  }