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Add skipLocalJars option and error message when used at config time (#165)
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‎CHANGELOG.md

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@@ -1,5 +1,9 @@
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# Extra Java Module Info Gradle Plugin - Changelog
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## Version 1.11
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* [New] [#161](https://github.com/gradlex-org/extra-java-module-info/pull/161) - Add 'skipLocalJars' option
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* [New] [#106](https://github.com/gradlex-org/extra-java-module-info/pull/106) - Actionable error message when plugin is used at configuration time
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## Version 1.10.1
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* [Fix] [#164](https://github.com/gradlex-org/extra-java-module-info/pull/164) - fix: 'preserveExisting' does not duplicate 'provides' entries
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‎README.md

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@@ -67,7 +67,9 @@ plugins {
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// add module information for all direct and transitive dependencies that are not modules
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extraJavaModuleInfo {
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// failOnMissingModuleInfo.set(false)
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// failOnMissingModuleInfo = false
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// failOnAutomaticModules = true
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// skipLocalJars = true
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module("commons-beanutils:commons-beanutils", "org.apache.commons.beanutils") {
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exports("org.apache.commons.beanutils")
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// or granuarly allowing access to a package by specific modules
@@ -164,6 +166,13 @@ sourceSets.all {
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}
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```
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## How do I deactivate the plugin functionality for my own Jars?
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A major use case of the plugin is to transform Jars from 3rd party repositories that you do not control.
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By default, however, the plugin looks at all Jars on the module paths – including the Jars Gradle builds from you own modules.
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This is working well in most cases. The jars are analyzed and the plugin detects that they are infact modules and does not modify them.
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You can still optimize the plugin execution to completely skip analysis of locally-built Jars by setting `skipLocalJars = true`.
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## How do I add `provides ... with ...` declarations to the `module-info.class` descriptor?
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The plugin will automatically retrofit all the available `META-INF/services/*` descriptors into `module-info.class` for you. The `META-INF/services/*` descriptors will be preserved so that a transformed JAR will continue to work if it is placed on the classpath.
@@ -263,15 +272,15 @@ The plugin provides a set of `<sourceSet>moduleDescriptorRecommendations` tasks
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This task generates module info spec for the JARs that do not contain the proper `module-info.class` descriptors.
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NOTE: This functionality requires Gradle to be run with Java 11+ and failing on missing module information should be disabled via `failOnMissingModuleInfo.set(false)`.
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NOTE: This functionality requires Gradle to be run with Java 11+ and failing on missing module information should be disabled via `failOnMissingModuleInfo = false`.
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## How can I ensure there are no automatic modules in my dependency graph?
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If your goal is to fully modularize your application, you should enable the following configuration setting, which is disabled by default.
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```
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extraJavaModuleInfo {
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failOnAutomaticModules.set(true)
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failOnAutomaticModules = true
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}
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```
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@@ -282,7 +291,7 @@ dependencies {
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implementation("org.yaml:snakeyaml:1.33")
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}
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extraJavaModuleInfo {
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failOnAutomaticModules.set(true)
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failOnAutomaticModules = true
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module("org.yaml:snakeyaml", "org.yaml.snakeyaml") {
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closeModule()
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exports("org.yaml.snakeyaml")
@@ -351,7 +360,7 @@ However, if you get started and just want things to be put on the Module Path, y
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```
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extraJavaModuleInfo {
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deriveAutomaticModuleNamesFromFileNames.set(true)
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deriveAutomaticModuleNamesFromFileNames = true
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}
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```
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‎src/main/java/org/gradlex/javamodule/moduleinfo/ExtraJavaModuleInfoPlugin.java

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@@ -76,6 +76,7 @@ public void apply(Project project) {
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ExtraJavaModuleInfoPluginExtension extension = project.getExtensions().create("extraJavaModuleInfo", ExtraJavaModuleInfoPluginExtension.class);
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extension.getFailOnMissingModuleInfo().convention(true);
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extension.getFailOnAutomaticModules().convention(false);
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extension.getSkipLocalJars().convention(false);
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extension.getDeriveAutomaticModuleNamesFromFileNames().convention(false);
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// setup the transform and the tasks for all projects in the build
@@ -166,11 +167,32 @@ private void configureTransform(Project project, ExtraJavaModuleInfoPluginExtens
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Configuration runtimeClasspath = project.getConfigurations().getByName(sourceSet.getRuntimeClasspathConfigurationName());
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Configuration compileClasspath = project.getConfigurations().getByName(sourceSet.getCompileClasspathConfigurationName());
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Configuration annotationProcessor = project.getConfigurations().getByName(sourceSet.getAnnotationProcessorConfigurationName());
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Configuration runtimeElements = project.getConfigurations().findByName(sourceSet.getRuntimeElementsConfigurationName());
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Configuration apiElements = project.getConfigurations().findByName(sourceSet.getApiElementsConfigurationName());
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// compile, runtime and annotation processor classpaths express that they only accept modules by requesting the javaModule=true attribute
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runtimeClasspath.getAttributes().attribute(javaModule, true);
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compileClasspath.getAttributes().attribute(javaModule, true);
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annotationProcessor.getAttributes().attribute(javaModule, true);
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// outgoing variants may express that they already provide a modular Jar and can hence skip the transform altogether
179+
if (GradleVersion.current().compareTo(GradleVersion.version("7.4")) >= 0) {
180+
if (runtimeElements != null) {
181+
runtimeElements.getOutgoing().getAttributes().attributeProvider(javaModule, extension.getSkipLocalJars());
182+
}
183+
if (apiElements != null) {
184+
apiElements.getOutgoing().getAttributes().attributeProvider(javaModule, extension.getSkipLocalJars());
185+
}
186+
} else {
187+
project.afterEvaluate(p -> {
188+
if (runtimeElements != null) {
189+
runtimeElements.getOutgoing().getAttributes().attribute(javaModule, extension.getSkipLocalJars().get());
190+
}
191+
if (apiElements != null) {
192+
apiElements.getOutgoing().getAttributes().attribute(javaModule, extension.getSkipLocalJars().get());
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}
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});
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}
174196
});
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176198
// Jars may be transformed (or merged into) Module Jars

‎src/main/java/org/gradlex/javamodule/moduleinfo/ExtraJavaModuleInfoPluginExtension.java

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@@ -40,6 +40,7 @@ public abstract class ExtraJavaModuleInfoPluginExtension {
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public abstract MapProperty<String, ModuleSpec> getModuleSpecs();
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public abstract Property<Boolean> getFailOnMissingModuleInfo();
4242
public abstract Property<Boolean> getFailOnAutomaticModules();
43+
public abstract Property<Boolean> getSkipLocalJars();
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public abstract Property<Boolean> getDeriveAutomaticModuleNamesFromFileNames();
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public abstract Property<String> getVersionsProvidingConfiguration();
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‎src/main/java/org/gradlex/javamodule/moduleinfo/ExtraJavaModuleInfoTransform.java

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@@ -133,6 +133,8 @@ public void transform(TransformOutputs outputs) {
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return;
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}
135135

136+
checkInputExists(originalJar);
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// We return the original Jar without further analysis, if there is
137139
// (1) no spec (2) no auto-module check (3) no missing module-info check (4) no auto-name derivation
138140
if (moduleSpec == null
@@ -184,6 +186,19 @@ public void transform(TransformOutputs outputs) {
184186
}
185187
}
186188

189+
private void checkInputExists(File jar) {
190+
if (!jar.isFile()) {
191+
// If the jar does not exist, it is most likely a locally-built Jar that does not yet exist because the
192+
// transform was triggered at configuration time. See:
193+
// - https://github.com/gradle/gradle/issues/26155
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// - https://github.com/gradlex-org/extra-java-module-info/issues/15
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// - https://github.com/gradlex-org/extra-java-module-info/issues/78
196+
throw new RuntimeException("File does not exist: " + jar
197+
+ "\n This is likely because a tool or another plugin performs early dependency resolution."
198+
+ "\n You can prevent this error by setting 'skipLocalJars = true'.");
199+
}
200+
}
201+
187202
@Nullable
188203
private ModuleSpec findModuleSpec(File originalJar) {
189204
Map<String, ModuleSpec> moduleSpecs = getParameters().getModuleSpecs().get();
@@ -219,15 +234,6 @@ private boolean willBeMerged(File originalJar, Collection<ModuleSpec> modules) {
219234
}
220235

221236
private boolean isModule(File jar) {
222-
if (!jar.isFile()) {
223-
// If the jar does not exist, we assume that the file, which is produced later is a local artifact and a module.
224-
// For local files this behavior is ok, because this transform is targeting published artifacts.
225-
// Still, this can cause an error: https://github.com/gradle/gradle/issues/27372
226-
// See also:
227-
// - https://github.com/gradlex-org/extra-java-module-info/issues/15
228-
// - https://github.com/gradlex-org/extra-java-module-info/issues/78
229-
return true;
230-
}
231237
try (JarInputStream inputStream = new JarInputStream(Files.newInputStream(jar.toPath()))) {
232238
boolean isMultiReleaseJar = containsMultiReleaseJarEntry(inputStream);
233239
ZipEntry next = inputStream.getNextEntry();

‎src/test/groovy/org/gradlex/javamodule/moduleinfo/test/LocalJarTransformFunctionalTest.groovy

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package org.gradlex.javamodule.moduleinfo.test
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import org.gradlex.javamodule.moduleinfo.test.fixture.GradleBuild
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import spock.lang.Specification
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class LocalJarTransformFunctionalTest extends Specification {
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@Delegate
9+
GradleBuild build = new GradleBuild()
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def setup() {
12+
settingsFile << '''
13+
rootProject.name = "test-project"
14+
include(":sub")
15+
'''
16+
file("sub/build.gradle.kts") << '''
17+
plugins {
18+
id("java-library")
19+
id("org.gradlex.extra-java-module-info")
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id("maven-publish")
21+
}
22+
'''
23+
buildFile << '''
24+
plugins {
25+
id("java-library")
26+
id("org.gradlex.extra-java-module-info")
27+
}
28+
dependencies {
29+
implementation(project(":sub"))
30+
}
31+
'''
32+
}
33+
34+
def "a locally produced Jar is transformed"() {
35+
given:
36+
buildFile << '''
37+
extraJavaModuleInfo {
38+
// transform local Jar to assert that it has gone through transformation
39+
module("sub.jar", "org.example.sub")
40+
}
41+
tasks.register("printCP") {
42+
inputs.files(configurations.runtimeClasspath)
43+
doLast { println(inputs.files.files.map { it.name }) }
44+
}
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'''
46+
47+
when:
48+
def result = task('printCP', '-q')
49+
50+
then:
51+
result.output.trim() == "[sub-module.jar]"
52+
}
53+
54+
def "transformation of locally produced Jars can be deactivates"() {
55+
given:
56+
buildFile << '''
57+
tasks.register("printCP") {
58+
inputs.files(configurations.runtimeClasspath)
59+
doLast { println(inputs.files.files.map { it.name }) }
60+
}
61+
'''
62+
file("sub/build.gradle.kts") << """
63+
extraJavaModuleInfo { skipLocalJars.set(true) }
64+
"""
65+
66+
when:
67+
def result = task('printCP', '-q')
68+
69+
then:
70+
result.output.trim() == "[sub.jar]"
71+
}
72+
73+
74+
def "deactivation of locally produced Jars does not cause additional attributes to be published"() {
75+
given:
76+
def repo = file("repo")
77+
file("sub/build.gradle.kts") << """
78+
group = "foo"
79+
version = "1"
80+
publishing {
81+
publications.create<MavenPublication>("lib").from(components["java"])
82+
repositories.maven("${repo.absolutePath}")
83+
}
84+
extraJavaModuleInfo { skipLocalJars.set(true) }
85+
"""
86+
87+
when:
88+
task('publish')
89+
90+
then:
91+
!new File(repo, 'foo/sub/1/sub-1.module').text.contains('"javaModule":')
92+
}
93+
94+
def "if transform fails due to missing local Jar, an actionable error message is given"() {
95+
given:
96+
buildFile << '''
97+
tasks.register("printCP") {
98+
inputs.files(configurations.runtimeClasspath.get().files) // provoke error: access at configuration time
99+
doLast { println(inputs.files.files.map { it.name }) }
100+
}
101+
'''
102+
103+
when:
104+
def result = failTask('printCP', '-q')
105+
106+
then:
107+
result.output.contains("File does not exist:")
108+
result.output.contains("You can prevent this error by setting 'skipLocalJars = true'")
109+
}
110+
111+
def "resolving early does not fail if transformation is disabled for locally produced Jars"() {
112+
given:
113+
buildFile << '''
114+
tasks.register("printCP") {
115+
inputs.files(configurations.runtimeClasspath.get().files) // provoke resolution at configuration time
116+
doLast { println(inputs.files.files.map { it.name }) }
117+
}
118+
'''
119+
file("sub/build.gradle.kts") << '''
120+
extraJavaModuleInfo { skipLocalJars.set(true) }
121+
'''
122+
123+
when:
124+
def result = task('printCP', '-q')
125+
126+
then:
127+
result.output.trim() == "[sub.jar]"
128+
}
129+
}

‎src/test/groovy/org/gradlex/javamodule/moduleinfo/test/fixture/GradleBuild.groovy

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@@ -50,6 +50,10 @@ class GradleBuild {
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runner(taskNames).build()
5151
}
5252

53+
BuildResult failTask(String... taskNames) {
54+
runner(taskNames).buildAndFail()
55+
}
56+
5357
GradleRunner runner(String... args) {
5458
if (buildFile.exists()) {
5559
buildFile << '\nrepositories.mavenCentral()'

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