/
factory.go
53 lines (45 loc) · 1.08 KB
/
factory.go
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package renderers
import (
"fmt"
"github.com/cloudfoundry/bosh-bootloader/helpers"
)
type factory struct {
platform string
envGetter helpers.EnvGetter
}
// Factory defines a new renderer factory
type Factory interface {
Create(shellType string) (Renderer, error)
}
// NewFactory creates a new factory
func NewFactory(envGetter helpers.EnvGetter) Factory {
return &factory{
envGetter: envGetter,
}
}
func (f *factory) createDefault() (Renderer, error) {
shellType := ShellTypePosix
value := f.envGetter.Get("PSModulePath")
if value != "" {
shellType = ShellTypePowershell
}
return f.createFromType(shellType)
}
func (f *factory) createFromType(shellType string) (Renderer, error) {
switch shellType {
case ShellTypePowershell:
return NewPowershell(), nil
case ShellTypePosix:
return NewPosix(), nil
case ShellTypeYaml:
return NewYaml(), nil
default:
return nil, fmt.Errorf("unrecognized type '%s'", shellType)
}
}
func (f *factory) Create(shellType string) (Renderer, error) {
if shellType == "" {
return f.createDefault()
}
return f.createFromType(shellType)
}