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// Copyright 2019 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 exec2
import (
"context"
"os/exec"
)
// Cmd is like exec.Cmd, but supports terminate and process containment.
type Cmd struct {
*exec.Cmd
attr attr
}
// CommandContext is like exec.CommandContext, but it uses process group by
// default and supports timeout in Wait function.
func CommandContext(ctx context.Context, name string, arg ...string) *Cmd {
cmd := &Cmd{
Cmd: exec.CommandContext(ctx, name, arg...),
}
cmd.setupCmd()
return cmd
}
// Start starts command with appropriate setup.
func (c *Cmd) Start() error {
return c.start()
}
// Wait waits to process to finish.
func (c *Cmd) Wait() error {
return c.wait()
}
// Terminate sends SIGTERM on unix or CTRL+BREAK on windows.
func (c *Cmd) Terminate() error {
return c.terminate()
}
// Kill kills process.
func (c *Cmd) Kill() error {
return c.kill()
}