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Break up version.go as it contains version and api verification logic
Signed-off-by: Natalie Arellano <[email protected]>
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,115 @@ | ||
package cmd | ||
|
||
import ( | ||
"fmt" | ||
"github.com/buildpacks/lifecycle/api" | ||
) | ||
|
||
var ( | ||
DeprecationMode = EnvOrDefault(EnvDeprecationMode, DefaultDeprecationMode) | ||
ExperimentalMode = EnvOrDefault(EnvExperimentalMode, DefaultExperimentalMode) | ||
) | ||
|
||
const ( | ||
ModeQuiet = "quiet" | ||
ModeWarn = "warn" | ||
ModeError = "error" | ||
) | ||
|
||
func VerifyPlatformAPI(requested string) error { | ||
requestedAPI, err := api.NewVersion(requested) | ||
if err != nil { | ||
return FailErrCode( | ||
fmt.Errorf("parse platform API '%s'", requested), | ||
CodeIncompatiblePlatformAPI, | ||
) | ||
} | ||
if api.Platform.IsSupported(requestedAPI) { | ||
if api.Platform.IsDeprecated(requestedAPI) { | ||
switch DeprecationMode { | ||
case ModeQuiet: | ||
break | ||
case ModeError: | ||
DefaultLogger.Errorf("Platform requested deprecated API '%s'", requested) | ||
DefaultLogger.Errorf("Deprecated APIs are disabled by %s=%s", EnvDeprecationMode, ModeError) | ||
return platformAPIError(requested) | ||
case ModeWarn: | ||
DefaultLogger.Warnf("Platform requested deprecated API '%s'", requested) | ||
default: | ||
DefaultLogger.Warnf("Platform requested deprecated API '%s'", requested) | ||
} | ||
} | ||
if api.Platform.IsExperimental(requestedAPI) { | ||
switch ExperimentalMode { | ||
case ModeQuiet: | ||
break | ||
case ModeError: | ||
DefaultLogger.Errorf("Platform requested experimental API '%s'", requested) | ||
DefaultLogger.Errorf("Experimental APIs are disabled by %s=%s", EnvExperimentalMode, ModeError) | ||
return platformAPIError(requested) | ||
case ModeWarn: | ||
DefaultLogger.Warnf("Platform requested experimental API '%s'", requested) | ||
default: | ||
DefaultLogger.Warnf("Platform requested experimental API '%s'", requested) | ||
} | ||
} | ||
return nil | ||
} | ||
return platformAPIError(requested) | ||
} | ||
|
||
func VerifyBuildpackAPI(bp string, requested string) error { | ||
requestedAPI, err := api.NewVersion(requested) | ||
if err != nil { | ||
return FailErrCode( | ||
fmt.Errorf("parse buildpack API '%s' for buildpack '%s'", requestedAPI, bp), | ||
CodeIncompatibleBuildpackAPI, | ||
) | ||
} | ||
if api.Buildpack.IsSupported(requestedAPI) { | ||
if api.Buildpack.IsDeprecated(requestedAPI) { | ||
switch DeprecationMode { | ||
case ModeQuiet: | ||
break | ||
case ModeError: | ||
DefaultLogger.Errorf("Buildpack '%s' requests deprecated API '%s'", bp, requested) | ||
DefaultLogger.Errorf("Deprecated APIs are disabled by %s=%s", EnvDeprecationMode, ModeError) | ||
return buildpackAPIError(bp, requested) | ||
case ModeWarn: | ||
DefaultLogger.Warnf("Buildpack '%s' requests deprecated API '%s'", bp, requested) | ||
default: | ||
DefaultLogger.Warnf("Buildpack '%s' requests deprecated API '%s'", bp, requested) | ||
} | ||
} | ||
if api.Buildpack.IsExperimental(requestedAPI) { | ||
switch ExperimentalMode { | ||
case ModeQuiet: | ||
break | ||
case ModeError: | ||
DefaultLogger.Errorf("Buildpack '%s' requests experimental API '%s'", bp, requested) | ||
DefaultLogger.Errorf("Experimental APIs are disabled by %s=%s", EnvExperimentalMode, ModeError) | ||
return buildpackAPIError(bp, requested) | ||
case ModeWarn: | ||
DefaultLogger.Warnf("Buildpack '%s' requests experimental API '%s'", bp, requested) | ||
default: | ||
DefaultLogger.Warnf("Buildpack '%s' requests experimental API '%s'", bp, requested) | ||
} | ||
} | ||
return nil | ||
} | ||
return buildpackAPIError(bp, requested) | ||
} | ||
|
||
func platformAPIError(requested string) error { | ||
return FailErrCode( | ||
fmt.Errorf("set platform API: platform API version '%s' is incompatible with the lifecycle", requested), | ||
CodeIncompatiblePlatformAPI, | ||
) | ||
} | ||
|
||
func buildpackAPIError(bp string, requested string) error { | ||
return FailErrCode( | ||
fmt.Errorf("set API for buildpack '%s': buildpack API version '%s' is incompatible with the lifecycle", bp, requested), | ||
CodeIncompatibleBuildpackAPI, | ||
) | ||
} |
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