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 java
16
17import (
18	"fmt"
19	"path/filepath"
20	"strings"
21
22	"github.com/google/blueprint/pathtools"
23
24	"android/soong/android"
25)
26
27var resourceExcludes = []string{
28	"**/*.java",
29	"**/package.html",
30	"**/overview.html",
31	"**/.*.swp",
32	"**/.DS_Store",
33	"**/*~",
34}
35
36type resourceDeps struct {
37	dir   android.Path
38	files android.Paths
39}
40
41func ResourceDirsToFiles(ctx android.BaseModuleContext,
42	resourceDirs, excludeResourceDirs, excludeResourceFiles []string) (deps []resourceDeps) {
43	var excludeDirs []string
44	var excludeFiles []string
45
46	for _, exclude := range excludeResourceDirs {
47		dirs := ctx.Glob(android.PathForSource(ctx, ctx.ModuleDir()).Join(ctx, exclude).String(), nil)
48		for _, dir := range dirs {
49			excludeDirs = append(excludeDirs, dir.String())
50			excludeFiles = append(excludeFiles, dir.(android.SourcePath).Join(ctx, "**/*").String())
51		}
52	}
53
54	excludeFiles = append(excludeFiles, android.PathsForModuleSrc(ctx, excludeResourceFiles).Strings()...)
55
56	excludeFiles = append(excludeFiles, resourceExcludes...)
57
58	for _, resourceDir := range resourceDirs {
59		// resourceDir may be a glob, resolve it first
60		dirs := ctx.Glob(android.PathForSource(ctx, ctx.ModuleDir()).Join(ctx, resourceDir).String(), excludeDirs)
61		for _, dir := range dirs {
62			files := ctx.GlobFiles(filepath.Join(dir.String(), "**/*"), excludeFiles)
63			deps = append(deps, resourceDeps{
64				dir:   dir,
65				files: files,
66			})
67		}
68	}
69
70	return deps
71}
72
73func ResourceDirsToJarArgs(ctx android.ModuleContext,
74	resourceDirs, excludeResourceDirs, excludeResourceFiles []string) (args []string, deps android.Paths) {
75	resDeps := ResourceDirsToFiles(ctx, resourceDirs, excludeResourceDirs, excludeResourceFiles)
76
77	for _, resDep := range resDeps {
78		dir, files := resDep.dir, resDep.files
79
80		if len(files) > 0 {
81			args = append(args, "-C", dir.String())
82			deps = append(deps, files...)
83
84			for _, f := range files {
85				path := f.String()
86				if !strings.HasPrefix(path, dir.String()) {
87					panic(fmt.Errorf("path %q does not start with %q", path, dir))
88				}
89				args = append(args, "-f", pathtools.MatchEscape(path))
90			}
91		}
92
93	}
94
95	return args, deps
96}
97
98// Convert java_resources properties to arguments to soong_zip -jar, ignoring common patterns
99// that should not be treated as resources (including *.java).
100func ResourceFilesToJarArgs(ctx android.ModuleContext,
101	res, exclude []string) (args []string, deps android.Paths) {
102
103	exclude = append([]string(nil), exclude...)
104	exclude = append(exclude, resourceExcludes...)
105	return resourceFilesToJarArgs(ctx, res, exclude)
106}
107
108func resourceFilesToJarArgs(ctx android.ModuleContext,
109	res, exclude []string) (args []string, deps android.Paths) {
110
111	files := android.PathsForModuleSrcExcludes(ctx, res, exclude)
112
113	args = resourcePathsToJarArgs(files)
114
115	return args, files
116}
117
118func resourcePathsToJarArgs(files android.Paths) []string {
119	var args []string
120
121	lastDir := ""
122	for i, f := range files {
123		rel := f.Rel()
124		path := f.String()
125		if !strings.HasSuffix(path, rel) {
126			panic(fmt.Errorf("path %q does not end with %q", path, rel))
127		}
128		dir := filepath.Clean(strings.TrimSuffix(path, rel))
129		if i == 0 || dir != lastDir {
130			args = append(args, "-C", dir)
131		}
132		args = append(args, "-f", pathtools.MatchEscape(path))
133		lastDir = dir
134	}
135
136	return args
137}
138