func getIfStatement()

in tools/migration/crosstool_to_starlark_lib.go [1110:1167]
56 lines of code
11 McCabe index (conditional complexity)

func getIfStatement(ifOrElseIf string, identifiers []string, field, val string,
	toCToolchainIdentifier map[string]CToolchainIdentifier, depth int,
	isPlainString bool) string {
	usedStmts := make(map[string]bool)
	if val != "None" && isPlainString {
		val = "\"" + val + "\""
	}
	var cToolchainIdentifiers []CToolchainIdentifier
	for _, value := range toCToolchainIdentifier {
		cToolchainIdentifiers = append(cToolchainIdentifiers, value)
	}
	cpuToCompilers := getCPUToCompilers(cToolchainIdentifiers)
	countCpus := make(map[string]int)
	var conditions []string
	for _, id := range identifiers {
		identifier := toCToolchainIdentifier[id]
		stmt := getConditionStatementForCToolchainIdentifier(identifier)
		if _, ok := usedStmts[stmt]; !ok {
			conditions = append(conditions, stmt)
			usedStmts[stmt] = true
			if identifier.compiler != "" {
				countCpus[identifier.cpu]++
			}
		}
	}

	var compressedConditions []string
	usedStmtsOptimized := make(map[string]bool)
	for _, id := range identifiers {
		identifier := toCToolchainIdentifier[id]
		var stmt string
		if _, ok := countCpus[identifier.cpu]; ok {
			if countCpus[identifier.cpu] == len(cpuToCompilers[identifier.cpu]) {
				stmt = getConditionStatementForCToolchainIdentifier(
					CToolchainIdentifier{cpu: identifier.cpu, compiler: ""})
			} else {
				stmt = getConditionStatementForCToolchainIdentifier(identifier)
			}
		} else {
			stmt = getConditionStatementForCToolchainIdentifier(identifier)
		}
		if _, ok := usedStmtsOptimized[stmt]; !ok {
			compressedConditions = append(compressedConditions, stmt)
			usedStmtsOptimized[stmt] = true
		}
	}

	sort.Strings(compressedConditions)
	val = strings.Join(strings.Split(val, "\n"+getTabs(depth)), "\n"+getTabs(depth+1))
	return fmt.Sprintf(`%s%s %s:
%s%s = %s
`, getTabs(depth),
		ifOrElseIf,
		"("+strings.Join(compressedConditions, "\n"+getTabs(depth+1)+"or ")+")",
		getTabs(depth+1),
		field,
		val)
}