1// Copyright 2015 Google Inc. All rights reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package cc
16
17import (
18	"fmt"
19	"regexp"
20	"strings"
21
22	"android/soong/common"
23)
24
25// Efficiently converts a list of include directories to a single string
26// of cflags with -I prepended to each directory.
27func includeDirsToFlags(dirs common.Paths) string {
28	return common.JoinWithPrefix(dirs.Strings(), "-I")
29}
30
31func includeFilesToFlags(files common.Paths) string {
32	return common.JoinWithPrefix(files.Strings(), "-include ")
33}
34
35func ldDirsToFlags(dirs []string) string {
36	return common.JoinWithPrefix(dirs, "-L")
37}
38
39func libNamesToFlags(names []string) string {
40	return common.JoinWithPrefix(names, "-l")
41}
42
43func inList(s string, list []string) bool {
44	for _, l := range list {
45		if l == s {
46			return true
47		}
48	}
49
50	return false
51}
52
53func filterList(list []string, filter []string) (remainder []string, filtered []string) {
54	for _, l := range list {
55		if inList(l, filter) {
56			filtered = append(filtered, l)
57		} else {
58			remainder = append(remainder, l)
59		}
60	}
61
62	return
63}
64
65var libNameRegexp = regexp.MustCompile(`^lib(.*)$`)
66
67func moduleToLibName(module string) (string, error) {
68	matches := libNameRegexp.FindStringSubmatch(module)
69	if matches == nil {
70		return "", fmt.Errorf("Library module name %s does not start with lib", module)
71	}
72	return matches[1], nil
73}
74
75func flagsToBuilderFlags(in Flags) builderFlags {
76	return builderFlags{
77		globalFlags: strings.Join(in.GlobalFlags, " "),
78		asFlags:     strings.Join(in.AsFlags, " "),
79		cFlags:      strings.Join(in.CFlags, " "),
80		conlyFlags:  strings.Join(in.ConlyFlags, " "),
81		cppFlags:    strings.Join(in.CppFlags, " "),
82		yaccFlags:   strings.Join(in.YaccFlags, " "),
83		ldFlags:     strings.Join(in.LdFlags, " "),
84		nocrt:       in.Nocrt,
85		toolchain:   in.Toolchain,
86		clang:       in.Clang,
87	}
88}
89