pulumi/sdk/go/auto/cmd.go

78 lines
2.1 KiB
Go

// Copyright 2016-2020, Pulumi Corporation.
//
// 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 auto
import (
"bytes"
"context"
"io"
"os"
"os/exec"
"github.com/pulumi/pulumi/sdk/v3/go/common/slice"
)
const unknownErrorCode = -2
func runPulumiCommandSync(
ctx context.Context,
workdir string,
stdin io.Reader,
additionalOutput []io.Writer,
additionalErrorOutput []io.Writer,
additionalEnv []string,
args ...string,
) (string, string, int, error) {
// all commands should be run in non-interactive mode.
// this causes commands to fail rather than prompting for input (and thus hanging indefinitely)
args = withNonInteractiveArg(args)
cmd := exec.CommandContext(ctx, "pulumi", args...)
cmd.Dir = workdir
cmd.Env = append(os.Environ(), additionalEnv...)
var stdout bytes.Buffer
var stderr bytes.Buffer
additionalOutput = append(additionalOutput, &stdout)
additionalErrorOutput = append(additionalErrorOutput, &stderr)
cmd.Stdout = io.MultiWriter(additionalOutput...)
cmd.Stderr = io.MultiWriter(additionalErrorOutput...)
cmd.Stdin = stdin
code := unknownErrorCode
err := cmd.Run()
if exitError, ok := err.(*exec.ExitError); ok {
code = exitError.ExitCode()
} else if err == nil {
// If there was no error then the exit code was 0
code = 0
}
return stdout.String(), stderr.String(), code, err
}
func withNonInteractiveArg(args []string) []string {
out := slice.Prealloc[string](len(args))
seen := false
for _, a := range args {
out = append(out, a)
if a == "--non-interactive" {
seen = true
}
}
if !seen {
out = append(out, "--non-interactive")
}
return out
}