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read_file.go
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read_file.go
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package read_file
import (
"github.com/kurtosis-tech/kurtosis/core/server/api_container/server/startosis_engine/kurtosis_starlark_framework"
"github.com/kurtosis-tech/kurtosis/core/server/api_container/server/startosis_engine/kurtosis_starlark_framework/builtin_argument"
"github.com/kurtosis-tech/kurtosis/core/server/api_container/server/startosis_engine/kurtosis_starlark_framework/kurtosis_helper"
"github.com/kurtosis-tech/kurtosis/core/server/api_container/server/startosis_engine/startosis_errors"
"github.com/kurtosis-tech/kurtosis/core/server/api_container/server/startosis_engine/startosis_packages"
"go.starlark.net/starlark"
)
const (
ReadFileBuiltinName = "read_file"
SrcArgName = "src"
)
func NewReadFileHelper(
packageId string,
packageContentProvider startosis_packages.PackageContentProvider,
packageReplaceOptions map[string]string,
) *kurtosis_helper.KurtosisHelper {
return &kurtosis_helper.KurtosisHelper{
KurtosisBaseBuiltin: &kurtosis_starlark_framework.KurtosisBaseBuiltin{
Name: ReadFileBuiltinName,
Arguments: []*builtin_argument.BuiltinArgument{
{
Name: SrcArgName,
IsOptional: false,
ZeroValueProvider: builtin_argument.ZeroValueProvider[starlark.String],
Validator: func(value starlark.Value) *startosis_errors.InterpretationError {
return builtin_argument.NonEmptyString(value, SrcArgName)
},
},
},
},
Capabilities: &readFileCapabilities{
packageContentProvider: packageContentProvider,
packageReplaceOptions: packageReplaceOptions,
},
}
}
type readFileCapabilities struct {
packageContentProvider startosis_packages.PackageContentProvider
packageReplaceOptions map[string]string
}
func (builtin *readFileCapabilities) Interpret(locatorOfModuleInWhichThisBuiltInIsBeingCalled string, arguments *builtin_argument.ArgumentValuesSet) (starlark.Value, *startosis_errors.InterpretationError) {
srcValue, err := builtin_argument.ExtractArgumentValue[starlark.String](arguments, SrcArgName)
if err != nil {
return nil, startosis_errors.WrapWithInterpretationError(err, "Unable to extract value for arg '%s'", srcValue)
}
fileToReadStr := srcValue.GoString()
fileToReadStr, relativePathParsingInterpretationErr := builtin.packageContentProvider.GetAbsoluteLocatorForRelativeLocator(locatorOfModuleInWhichThisBuiltInIsBeingCalled, fileToReadStr, builtin.packageReplaceOptions)
if relativePathParsingInterpretationErr != nil {
return nil, relativePathParsingInterpretationErr
}
packageContent, interpretationErr := builtin.packageContentProvider.GetModuleContents(fileToReadStr)
if interpretationErr != nil {
return nil, interpretationErr
}
return starlark.String(packageContent), nil
}