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stability.go
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stability.go
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// Copyright (c) The OpenTofu Authors
// SPDX-License-Identifier: MPL-2.0
package tofudl
import (
"fmt"
)
// Stability describes the minimum stability to download.
type Stability string
const (
// StabilityAlpha accepts any stability.
StabilityAlpha Stability = "alpha"
// StabilityBeta accepts beta, release candidate and stable versions.
StabilityBeta Stability = "beta"
// StabilityRC accepts release candidate and stable versions.
StabilityRC Stability = "rc"
// StabilityStable accepts only stable versions.
StabilityStable Stability = ""
)
// AsInt returns a numeric representation of the stability for easier comparison.
func (s Stability) AsInt() int {
switch s {
case StabilityStable:
return 0
case StabilityRC:
return -1
case StabilityBeta:
return -2
case StabilityAlpha:
return -3
default:
panic(s.Validate())
}
}
// Matches returns true if the provided version matches the current stability or higher.
func (s Stability) Matches(version Version) bool {
return version.Stability().AsInt() >= s.AsInt()
}
// Validate returns an error if the stability is not one of the listed stabilities.
func (s Stability) Validate() error {
switch s {
case StabilityStable:
return nil
case StabilityRC:
return nil
case StabilityBeta:
return nil
case StabilityAlpha:
return nil
default:
return fmt.Errorf("invalid stability value: %s", s)
}
}
// StabilityValues returns all supported values for Stability excluding StabilityStable.
func StabilityValues() []Stability {
return []Stability{
StabilityRC,
StabilityBeta,
StabilityAlpha,
}
}