packer-cn/command/exec_test.go

128 lines
3.4 KiB
Go

package command
import (
"context"
"fmt"
"os"
"os/exec"
"runtime"
"testing"
"github.com/hashicorp/packer/builder/file"
"github.com/hashicorp/packer/builder/null"
"github.com/hashicorp/packer/packer"
"github.com/hashicorp/packer/post-processor/manifest"
shell_local_pp "github.com/hashicorp/packer/post-processor/shell-local"
filep "github.com/hashicorp/packer/provisioner/file"
"github.com/hashicorp/packer/provisioner/shell"
shell_local "github.com/hashicorp/packer/provisioner/shell-local"
"github.com/hashicorp/packer/version"
)
// HasExec reports whether the current system can start new processes
// using os.StartProcess or (more commonly) exec.Command.
func HasExec() bool {
switch runtime.GOOS {
case "js":
return false
case "darwin":
if runtime.GOARCH == "arm64" {
return false
}
}
return true
}
// MustHaveExec checks that the current system can start new processes
// using os.StartProcess or (more commonly) exec.Command.
// If not, MustHaveExec calls t.Skip with an explanation.
func MustHaveExec(t testing.TB) {
if !HasExec() {
t.Skipf("skipping test: cannot exec subprocess on %s/%s", runtime.GOOS, runtime.GOARCH)
}
}
func helperCommandContext(t *testing.T, ctx context.Context, s ...string) (cmd *exec.Cmd) {
MustHaveExec(t)
cs := []string{"-test.run=TestHelperProcess", "--"}
cs = append(cs, s...)
if ctx != nil {
cmd = exec.CommandContext(ctx, os.Args[0], cs...)
} else {
cmd = exec.Command(os.Args[0], cs...)
}
cmd.Env = append(os.Environ(), "GO_WANT_HELPER_PROCESS=1")
return cmd
}
func helperCommand(t *testing.T, s ...string) *exec.Cmd {
return helperCommandContext(t, nil, s...)
}
// TestHelperProcess isn't a real test. It's used as a helper process
// for TestParameterRun.
func TestHelperProcess(*testing.T) {
if os.Getenv("GO_WANT_HELPER_PROCESS") != "1" {
return
}
defer os.Exit(0)
args := os.Args
for len(args) > 0 {
if args[0] == "--" {
args = args[1:]
break
}
args = args[1:]
}
if len(args) == 0 {
fmt.Fprintf(os.Stderr, "No command\n")
os.Exit(2)
}
cmd, args := args[0], args[1:]
switch cmd {
case "console":
os.Exit((&ConsoleCommand{Meta: commandMeta()}).Run(args))
default:
fmt.Fprintf(os.Stderr, "Unknown command %q\n", cmd)
os.Exit(2)
}
}
func commandMeta() Meta {
basicUi := &packer.BasicUi{
Reader: os.Stdin,
Writer: os.Stdout,
ErrorWriter: os.Stdout,
}
CommandMeta := Meta{
CoreConfig: &packer.CoreConfig{
Components: getBareComponentFinder(),
Version: version.Version,
},
Ui: basicUi,
}
return CommandMeta
}
func getBareComponentFinder() packer.ComponentFinder {
return packer.ComponentFinder{
BuilderStore: packer.MapOfBuilder{
"file": func() (packer.Builder, error) { return &file.Builder{}, nil },
"null": func() (packer.Builder, error) { return &null.Builder{}, nil },
},
ProvisionerStore: packer.MapOfProvisioner{
"shell-local": func() (packer.Provisioner, error) { return &shell_local.Provisioner{}, nil },
"shell": func() (packer.Provisioner, error) { return &shell.Provisioner{}, nil },
"file": func() (packer.Provisioner, error) { return &filep.Provisioner{}, nil },
},
PostProcessorStore: packer.MapOfPostProcessor{
"shell-local": func() (packer.PostProcessor, error) { return &shell_local_pp.PostProcessor{}, nil },
"manifest": func() (packer.PostProcessor, error) { return &manifest.PostProcessor{}, nil },
},
}
}