Function extractFieldFromDirectiveForField

pkg/parser/include_expander.go:301–326

(
	directive *ImportDirectiveMatch,
	baseDir string,
	extractFunc func(string) (string, error),
)

}

func extractFieldFromDirectiveForField(
	directive *ImportDirectiveMatch,
	baseDir string,
	extractFunc func(string) (string, error),
) (string, bool, error) {
	filePath := includeDirectiveFilePath(directive.Path)
	fullPath, err := ResolveIncludePath(filePath, baseDir, nil)
	if err != nil {
		if directive.IsOptional {
			return "", true, nil
		}
		return "", false, fmt.Errorf("failed to resolve required include '%s': %w", filePath, err)
	}

	fileContent, err := readFileFunc(fullPath)
	if err != nil {
		return "", false, fmt.Errorf("failed to read included file '%s': %w", fullPath, err)
	}

	fieldJSON, err := extractFunc(string(fileContent))
	if err != nil {
		return "", false, fmt.Errorf("failed to extract field from '%s': %w", fullPath, err)
	}

	return fieldJSON, false, nil
}

func includeDirectiveFilePath(includePath string) string {
	// Note: section references are ignored for frontmatter field extraction.