Function migrateEngineFieldToTopLevel

pkg/cli/codemod_engine_to_top_level_helpers.go:19–113

(
	content string,
	frontmatter map[string]any,
	opts migrateEngineFieldToTopLevelOptions,
)

}

func migrateEngineFieldToTopLevel(
	content string,
	frontmatter map[string]any,
	opts migrateEngineFieldToTopLevelOptions,
) (string, bool, error) {
	engineValue, hasEngine := frontmatter["engine"]
	if !hasEngine {
		return content, false, nil
	}
	engineMap, ok := engineValue.(map[string]any)
	if !ok {
		return content, false, nil
	}
	if _, hasEngineField := engineMap[opts.engineField]; !hasEngineField {
		return content, false, nil
	}

	hasPreservedTopLevelField := false
	for _, field := range opts.preserveTopLevelFields {
		if _, exists := frontmatter[field]; exists {
			hasPreservedTopLevelField = true
			break
		}
	}

	return applyFrontmatterLineTransform(content, func(lines []string) ([]string, bool) {
		for _, line := range lines {
			trimmed := strings.TrimSpace(line)
			if !isTopLevelKey(line) || !strings.HasPrefix(trimmed, "engine:") {
				continue
			}
			inlineValue := strings.TrimSpace(strings.TrimPrefix(trimmed, "engine:"))
			if strings.HasPrefix(inlineValue, "{") && strings.Contains(inlineValue, opts.engineField+":") {
				if opts.log != nil {
					opts.log.Print(opts.skipInlineMessage)
				}
				return lines, false
			}
		}

		fieldSuffix := ""
		inEngineBlock := false
		engineIndent := ""
		engineFieldPrefix := opts.engineField + ":"
		for _, line := range lines {
			trimmed := strings.TrimSpace(line)
			if isTopLevelKey(line) && strings.HasPrefix(trimmed, "engine:") {
				inEngineBlock = true
				engineIndent = getIndentation(line)
				continue
			}
			if inEngineBlock && len(trimmed) > 0 && !strings.HasPrefix(trimmed, "#") && len(getIndentation(line)) <= len(engineIndent) {
				inEngineBlock = false
			}
			if inEngineBlock && strings.HasPrefix(trimmed, engineFieldPrefix) {
				parts := strings.SplitN(line, ":", 2)
				if len(parts) == 2 {
					fieldSuffix = parts[1]