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installmodes.go
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/
installmodes.go
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/*
* UpdateHub
* Copyright (C) 2017
* O.S. Systems Sofware LTDA: contato@ossystems.com.br
*
* SPDX-License-Identifier: Apache-2.0
*/
package installmodes
import "errors"
var (
installModes = make(map[string]InstallMode)
)
// InstallMode represents a install mode
type InstallMode struct {
Name string
CheckRequirements func() error
GetObject func() interface{}
}
func (mode InstallMode) Unregister() {
delete(installModes, mode.Name)
}
// RegisterInstallMode registers a new install mode
func RegisterInstallMode(mode InstallMode) InstallMode {
installModes[mode.Name] = mode
return mode
}
// GetObject gets the object that represents a install mode
func GetObject(name string) (interface{}, error) {
if m, ok := installModes[name]; ok {
return m.GetObject(), nil
} else {
return nil, errors.New("Object not found")
}
}
// CheckRequirements iterates over all registered install modes and check for their requirements
func CheckRequirements() error {
for _, m := range installModes {
if err := m.CheckRequirements(); err != nil {
return err
}
}
return nil
}