Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 1 | // Copyright 2017 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 | |
| 15 | package main |
| 16 | |
| 17 | import ( |
| 18 | "encoding/xml" |
| 19 | "flag" |
| 20 | "fmt" |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 21 | "io/ioutil" |
| 22 | "os" |
| 23 | "path/filepath" |
| 24 | "regexp" |
| 25 | "sort" |
| 26 | "strings" |
| 27 | "text/template" |
| 28 | |
| 29 | "github.com/google/blueprint/proptools" |
| 30 | ) |
| 31 | |
| 32 | type RewriteNames []RewriteName |
| 33 | type RewriteName struct { |
| 34 | regexp *regexp.Regexp |
| 35 | repl string |
| 36 | } |
| 37 | |
| 38 | func (r *RewriteNames) String() string { |
| 39 | return "" |
| 40 | } |
| 41 | |
| 42 | func (r *RewriteNames) Set(v string) error { |
| 43 | split := strings.SplitN(v, "=", 2) |
| 44 | if len(split) != 2 { |
| 45 | return fmt.Errorf("Must be in the form of <regex>=<replace>") |
| 46 | } |
| 47 | regex, err := regexp.Compile(split[0]) |
| 48 | if err != nil { |
| 49 | return nil |
| 50 | } |
| 51 | *r = append(*r, RewriteName{ |
| 52 | regexp: regex, |
| 53 | repl: split[1], |
| 54 | }) |
| 55 | return nil |
| 56 | } |
| 57 | |
| 58 | func (r *RewriteNames) Rewrite(name string) string { |
| 59 | for _, r := range *r { |
| 60 | if r.regexp.MatchString(name) { |
| 61 | return r.regexp.ReplaceAllString(name, r.repl) |
| 62 | } |
| 63 | } |
| 64 | return name |
| 65 | } |
| 66 | |
| 67 | var rewriteNames = RewriteNames{} |
| 68 | |
| 69 | type ExtraDeps map[string][]string |
| 70 | |
| 71 | func (d ExtraDeps) String() string { |
| 72 | return "" |
| 73 | } |
| 74 | |
| 75 | func (d ExtraDeps) Set(v string) error { |
| 76 | split := strings.SplitN(v, "=", 2) |
| 77 | if len(split) != 2 { |
| 78 | return fmt.Errorf("Must be in the form of <module>=<module>[,<module>]") |
| 79 | } |
| 80 | d[split[0]] = strings.Split(split[1], ",") |
| 81 | return nil |
| 82 | } |
| 83 | |
| 84 | var extraDeps = make(ExtraDeps) |
| 85 | |
Dan Willemsen | 15a8e79 | 2017-11-10 14:02:44 -0800 | [diff] [blame] | 86 | var sdkVersion string |
Dan Willemsen | 47e44a4 | 2017-10-05 13:28:16 -0700 | [diff] [blame] | 87 | var useVersion string |
| 88 | |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 89 | type Dependency struct { |
| 90 | XMLName xml.Name `xml:"dependency"` |
| 91 | |
| 92 | GroupId string `xml:"groupId"` |
| 93 | ArtifactId string `xml:"artifactId"` |
| 94 | Version string `xml:"version"` |
| 95 | Type string `xml:"type"` |
| 96 | |
| 97 | Scope string `xml:"scope"` |
| 98 | } |
| 99 | |
| 100 | type Pom struct { |
| 101 | XMLName xml.Name `xml:"http://maven.apache.org/POM/4.0.0 project"` |
| 102 | |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 103 | PomFile string `xml:"-"` |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 104 | ArtifactFile string `xml:"-"` |
| 105 | |
| 106 | GroupId string `xml:"groupId"` |
| 107 | ArtifactId string `xml:"artifactId"` |
| 108 | Version string `xml:"version"` |
| 109 | Packaging string `xml:"packaging"` |
| 110 | |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 111 | Dependencies []*Dependency `xml:"dependencies>dependency"` |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | func (p Pom) MkName() string { |
| 115 | return rewriteNames.Rewrite(p.ArtifactId) |
| 116 | } |
| 117 | |
| 118 | func (p Pom) MkDeps() []string { |
| 119 | var ret []string |
| 120 | for _, d := range p.Dependencies { |
| 121 | if d.Type != "aar" { |
| 122 | continue |
| 123 | } |
| 124 | name := rewriteNames.Rewrite(d.ArtifactId) |
| 125 | ret = append(ret, name) |
| 126 | ret = append(ret, extraDeps[name]...) |
| 127 | } |
| 128 | return ret |
| 129 | } |
| 130 | |
Dan Willemsen | 15a8e79 | 2017-11-10 14:02:44 -0800 | [diff] [blame] | 131 | func (p Pom) SdkVersion() string { |
| 132 | return sdkVersion |
| 133 | } |
| 134 | |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 135 | func (p *Pom) FixDepTypes(modules map[string]*Pom) { |
| 136 | for _, d := range p.Dependencies { |
| 137 | if d.Type != "" { |
| 138 | continue |
| 139 | } |
| 140 | if depPom, ok := modules[d.ArtifactId]; ok { |
| 141 | d.Type = depPom.Packaging |
| 142 | } |
| 143 | } |
| 144 | } |
| 145 | |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 146 | var mkTemplate = template.Must(template.New("mk").Parse(` |
| 147 | include $(CLEAR_VARS) |
| 148 | LOCAL_MODULE := {{.MkName}} |
| 149 | LOCAL_MODULE_CLASS := JAVA_LIBRARIES |
| 150 | LOCAL_UNINSTALLABLE_MODULE := true |
| 151 | LOCAL_SRC_FILES := {{.ArtifactFile}} |
| 152 | LOCAL_BUILT_MODULE_STEM := javalib.jar |
| 153 | LOCAL_MODULE_SUFFIX := .{{.Packaging}} |
| 154 | LOCAL_USE_AAPT2 := true |
Dan Willemsen | 15a8e79 | 2017-11-10 14:02:44 -0800 | [diff] [blame] | 155 | LOCAL_SDK_VERSION := {{.SdkVersion}} |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 156 | LOCAL_STATIC_ANDROID_LIBRARIES := \ |
| 157 | {{range .MkDeps}} {{.}} \ |
| 158 | {{end}} |
| 159 | include $(BUILD_PREBUILT) |
| 160 | `)) |
| 161 | |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 162 | func parse(filename string) (*Pom, error) { |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 163 | data, err := ioutil.ReadFile(filename) |
| 164 | if err != nil { |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 165 | return nil, err |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 166 | } |
| 167 | |
| 168 | var pom Pom |
| 169 | err = xml.Unmarshal(data, &pom) |
| 170 | if err != nil { |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 171 | return nil, err |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 172 | } |
| 173 | |
Dan Willemsen | 47e44a4 | 2017-10-05 13:28:16 -0700 | [diff] [blame] | 174 | if useVersion != "" && pom.Version != useVersion { |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 175 | return nil, nil |
Dan Willemsen | 47e44a4 | 2017-10-05 13:28:16 -0700 | [diff] [blame] | 176 | } |
| 177 | |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 178 | if pom.Packaging == "" { |
| 179 | pom.Packaging = "jar" |
| 180 | } |
| 181 | |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 182 | pom.PomFile = filename |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 183 | pom.ArtifactFile = strings.TrimSuffix(filename, ".pom") + "." + pom.Packaging |
| 184 | |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 185 | return &pom, nil |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 186 | } |
| 187 | |
| 188 | func main() { |
| 189 | flag.Usage = func() { |
| 190 | fmt.Fprintf(os.Stderr, `pom2mk, a tool to create Android.mk files from maven repos |
| 191 | |
| 192 | The tool will extract the necessary information from *.pom files to create an Android.mk whose |
| 193 | aar libraries can be linked against when using AAPT2. |
| 194 | |
| 195 | Usage: %s [--rewrite <regex>=<replace>] [--extra-deps <module>=<module>[,<module>]] <dir> |
| 196 | |
| 197 | -rewrite <regex>=<replace> |
| 198 | rewrite can be used to specify mappings between the artifactId in the pom files and module |
| 199 | names in the Android.mk files. This can be specified multiple times, the first matching |
| 200 | regex will be used. |
| 201 | -extra-deps <module>=<module>[,<module>] |
| 202 | Some Android.mk modules have transitive dependencies that must be specified when they are |
| 203 | depended upon (like android-support-v7-mediarouter requires android-support-v7-appcompat). |
| 204 | This may be specified multiple times to declare these dependencies. |
Dan Willemsen | 15a8e79 | 2017-11-10 14:02:44 -0800 | [diff] [blame] | 205 | -sdk-version <version> |
| 206 | Sets LOCAL_SDK_VERSION := <version> for all modules. |
Dan Willemsen | 47e44a4 | 2017-10-05 13:28:16 -0700 | [diff] [blame] | 207 | -use-version <version> |
| 208 | If the maven directory contains multiple versions of artifacts and their pom files, |
| 209 | -use-version can be used to only write makefiles for a specific version of those artifacts. |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 210 | <dir> |
| 211 | The directory to search for *.pom files under. |
| 212 | |
| 213 | The makefile is written to stdout, to be put in the current directory (often as Android.mk) |
| 214 | `, os.Args[0]) |
| 215 | } |
| 216 | |
| 217 | flag.Var(&extraDeps, "extra-deps", "Extra dependencies needed when depending on a module") |
| 218 | flag.Var(&rewriteNames, "rewrite", "Regex(es) to rewrite artifact names") |
Dan Willemsen | 15a8e79 | 2017-11-10 14:02:44 -0800 | [diff] [blame] | 219 | flag.StringVar(&sdkVersion, "sdk-version", "", "What to write to LOCAL_SDK_VERSION") |
Dan Willemsen | 47e44a4 | 2017-10-05 13:28:16 -0700 | [diff] [blame] | 220 | flag.StringVar(&useVersion, "use-version", "", "Only read artifacts of a specific version") |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 221 | flag.Parse() |
| 222 | |
| 223 | if flag.NArg() != 1 { |
| 224 | flag.Usage() |
| 225 | os.Exit(1) |
| 226 | } |
| 227 | |
| 228 | dir := flag.Arg(0) |
| 229 | absDir, err := filepath.Abs(dir) |
| 230 | if err != nil { |
| 231 | fmt.Println(os.Stderr, "Failed to get absolute directory:", err) |
| 232 | os.Exit(1) |
| 233 | } |
| 234 | |
| 235 | var filenames []string |
| 236 | err = filepath.Walk(absDir, func(path string, info os.FileInfo, err error) error { |
| 237 | if err != nil { |
| 238 | return err |
| 239 | } |
| 240 | |
| 241 | name := info.Name() |
| 242 | if info.IsDir() { |
| 243 | if strings.HasPrefix(name, ".") { |
| 244 | return filepath.SkipDir |
| 245 | } |
| 246 | return nil |
| 247 | } |
| 248 | |
| 249 | if strings.HasPrefix(name, ".") { |
| 250 | return nil |
| 251 | } |
| 252 | |
| 253 | if strings.HasSuffix(name, ".pom") { |
| 254 | path, err = filepath.Rel(absDir, path) |
| 255 | if err != nil { |
| 256 | return err |
| 257 | } |
| 258 | filenames = append(filenames, filepath.Join(dir, path)) |
| 259 | } |
| 260 | return nil |
| 261 | }) |
| 262 | if err != nil { |
| 263 | fmt.Fprintln(os.Stderr, "Error walking files:", err) |
| 264 | os.Exit(1) |
| 265 | } |
| 266 | |
| 267 | if len(filenames) == 0 { |
| 268 | fmt.Fprintln(os.Stderr, "Error: no *.pom files found under", dir) |
| 269 | os.Exit(1) |
| 270 | } |
| 271 | |
| 272 | sort.Strings(filenames) |
| 273 | |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 274 | poms := []*Pom{} |
| 275 | modules := make(map[string]*Pom) |
| 276 | for _, filename := range filenames { |
| 277 | pom, err := parse(filename) |
| 278 | if err != nil { |
| 279 | fmt.Fprintln(os.Stderr, "Error converting", filename, err) |
| 280 | os.Exit(1) |
| 281 | } |
| 282 | |
| 283 | if pom != nil { |
| 284 | poms = append(poms, pom) |
| 285 | |
| 286 | if old, ok := modules[pom.ArtifactId]; ok { |
| 287 | fmt.Fprintln(os.Stderr, "Module", pom.ArtifactId, "defined twice:", old.PomFile, pom.PomFile) |
| 288 | os.Exit(1) |
| 289 | } |
| 290 | |
| 291 | modules[pom.ArtifactId] = pom |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | for _, pom := range poms { |
| 296 | pom.FixDepTypes(modules) |
| 297 | } |
| 298 | |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 299 | fmt.Println("# Automatically generated with:") |
| 300 | fmt.Println("# pom2mk", strings.Join(proptools.ShellEscape(os.Args[1:]), " ")) |
| 301 | fmt.Println("LOCAL_PATH := $(call my-dir)") |
| 302 | |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 303 | for _, pom := range poms { |
| 304 | err := mkTemplate.Execute(os.Stdout, pom) |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 305 | if err != nil { |
Dan Willemsen | 5f9d8a6 | 2017-10-05 14:01:31 -0700 | [diff] [blame] | 306 | fmt.Fprintln(os.Stderr, "Error writing", pom.PomFile, pom.MkName(), err) |
Dan Willemsen | 2902fa7 | 2017-04-27 21:16:35 -0700 | [diff] [blame] | 307 | os.Exit(1) |
| 308 | } |
| 309 | } |
| 310 | } |