org.gradle.api.internal.file.collections.LazilyInitializedFileCollection Java Examples

/**
 * Searches the specified class path for a 'scala-library' Jar, and returns a class path
 * containing a corresponding (same version) 'scala-compiler' Jar and its dependencies.
 *
 * <p>If the (deprecated) 'scalaTools' configuration is explicitly configured, no repository
 * is declared for the project, no 'scala-library' Jar is found on the specified class path,
 * or its version cannot be determined, a class path with the contents of the 'scalaTools'
 * configuration is returned.
 *
 * <p>The returned class path may be empty, or may fail to resolve when asked for its contents.
 *
 * @param classpath a class path containing a 'scala-library' Jar
 * @return a class path containing a corresponding 'scala-compiler' Jar and its dependencies
 */
public FileCollection inferScalaClasspath(final Iterable<File> classpath) {
    // alternatively, we could return project.files(Runnable)
    // would differ in the following ways: 1. live (not sure if we want live here) 2. no autowiring (probably want autowiring here)
    return new LazilyInitializedFileCollection() {
        @Override
        public FileCollection createDelegate() {
            if (project.getRepositories().isEmpty()) {
                throw new GradleException(String.format("Cannot infer Scala class path because no repository is declared in %s", project));
            }

            File scalaLibraryJar = findScalaJar(classpath, "library");
            if (scalaLibraryJar == null) {
                throw new GradleException(String.format("Cannot infer Scala class path because no Scala library Jar was found. "
                        + "Does %s declare dependency to scala-library? Searched classpath: %s.", project, classpath));
            }

            String scalaVersion = getScalaVersion(scalaLibraryJar);
            if (scalaVersion == null) {
                throw new AssertionError(String.format("Unexpectedly failed to parse version of Scala Jar file: %s in %s", scalaLibraryJar, project));
            }

            return project.getConfigurations().detachedConfiguration(
                    new DefaultExternalModuleDependency("org.scala-lang", "scala-compiler", scalaVersion));
        }

        // let's override this so that delegate isn't created at autowiring time (which would mean on every build)
        @Override
        public TaskDependency getBuildDependencies() {
            if (classpath instanceof Buildable) {
                return ((Buildable) classpath).getBuildDependencies();
            }
            return new TaskDependency() {
                public Set<? extends Task> getDependencies(Task task) {
                    return Collections.emptySet();
                }
            };
        }
    };
}
 

/**
 * Searches the specified class path for a 'scala-library' Jar, and returns a class path
 * containing a corresponding (same version) 'scala-compiler' Jar and its dependencies.
 *
 * <p>If the (deprecated) 'scalaTools' configuration is explicitly configured, no repository
 * is declared for the project, no 'scala-library' Jar is found on the specified class path,
 * or its version cannot be determined, a class path with the contents of the 'scalaTools'
 * configuration is returned.
 *
 * <p>The returned class path may be empty, or may fail to resolve when asked for its contents.
 *
 * @param classpath a class path containing a 'scala-library' Jar
 * @return a class path containing a corresponding 'scala-compiler' Jar and its dependencies
 */
public FileCollection inferScalaClasspath(final Iterable<File> classpath) {
    // alternatively, we could return project.files(Runnable)
    // would differ in the following ways: 1. live (not sure if we want live here) 2. no autowiring (probably want autowiring here)
    return new LazilyInitializedFileCollection() {
        @Override
        public FileCollection createDelegate() {
            if (project.getRepositories().isEmpty()) {
                throw new GradleException(String.format("Cannot infer Scala class path because no repository is declared in %s", project));
            }

            File scalaLibraryJar = findScalaJar(classpath, "library");
            if (scalaLibraryJar == null) {
                throw new GradleException(String.format("Cannot infer Scala class path because no Scala library Jar was found. "
                        + "Does %s declare dependency to scala-library? Searched classpath: %s.", project, classpath));
            }

            String scalaVersion = getScalaVersion(scalaLibraryJar);
            if (scalaVersion == null) {
                throw new AssertionError(String.format("Unexpectedly failed to parse version of Scala Jar file: %s in %s", scalaLibraryJar, project));
            }

            return project.getConfigurations().detachedConfiguration(
                    new DefaultExternalModuleDependency("org.scala-lang", "scala-compiler", scalaVersion));
        }

        // let's override this so that delegate isn't created at autowiring time (which would mean on every build)
        @Override
        public TaskDependency getBuildDependencies() {
            if (classpath instanceof Buildable) {
                return ((Buildable) classpath).getBuildDependencies();
            }
            return new TaskDependency() {
                public Set<? extends Task> getDependencies(Task task) {
                    return Collections.emptySet();
                }
            };
        }
    };
}
 

/**
 * Searches the specified class path for Groovy Jars ({@code groovy(-indy)}, {@code groovy-all(-indy)})
 * and returns a corresponding class path for executing Groovy tools such as the Groovy compiler and Groovydoc tool.
 * The tool versions will match those of the Groovy Jars found. If no Groovy Jars are found on the specified class
 * path, a class path with the contents of the {@code groovy} configuration will be returned.
 *
 * <p>The returned class path may be empty, or may fail to resolve when asked for its contents.
 *
 * @param classpath a class path containing Groovy Jars
 * @return a corresponding class path for executing Groovy tools such as the Groovy compiler and Groovydoc tool
 */
public FileCollection inferGroovyClasspath(final Iterable<File> classpath) {
    // alternatively, we could return project.files(Runnable)
    // would differ in at least the following ways: 1. live 2. no autowiring
    return new LazilyInitializedFileCollection() {
        @Override
        public FileCollection createDelegate() {
            GroovyJarFile groovyJar = findGroovyJarFile(classpath);
            if (groovyJar == null) {
                throw new GradleException(String.format("Cannot infer Groovy class path because no Groovy Jar was found on class path: %s", classpath));
            }

            if (groovyJar.isGroovyAll()) {
                return project.files(groovyJar.getFile());
            }

            if (project.getRepositories().isEmpty()) {
                throw new GradleException("Cannot infer Groovy class path because no repository is declared for the project.");
            }

            String notation = groovyJar.getDependencyNotation();
            List<Dependency> dependencies = Lists.newArrayList();
            // project.getDependencies().create(String) seems to be the only feasible way to create a Dependency with a classifier
            dependencies.add(project.getDependencies().create(notation));
            if (groovyJar.getVersion().getMajor() >= 2) {
                // add groovy-ant to bring in Groovydoc
                dependencies.add(project.getDependencies().create(notation.replace(":groovy:", ":groovy-ant:")));
            }
            return project.getConfigurations().detachedConfiguration(dependencies.toArray(new Dependency[dependencies.size()]));
        }

        // let's override this so that delegate isn't created at autowiring time (which would mean on every build)
        @Override
        public TaskDependency getBuildDependencies() {
            if (classpath instanceof Buildable) {
                return ((Buildable) classpath).getBuildDependencies();
            }
            return new TaskDependency() {
                public Set<? extends Task> getDependencies(Task task) {
                    return Collections.emptySet();
                }
            };
        }
    };
}
 

/**
 * Searches the specified class path for Groovy Jars ({@code groovy(-indy)}, {@code groovy-all(-indy)})
 * and returns a corresponding class path for executing Groovy tools such as the Groovy compiler and Groovydoc tool.
 * The tool versions will match those of the Groovy Jars found. If no Groovy Jars are found on the specified class
 * path, a class path with the contents of the {@code groovy} configuration will be returned.
 *
 * <p>The returned class path may be empty, or may fail to resolve when asked for its contents.
 *
 * @param classpath a class path containing Groovy Jars
 * @return a corresponding class path for executing Groovy tools such as the Groovy compiler and Groovydoc tool
 */
public FileCollection inferGroovyClasspath(final Iterable<File> classpath) {
    final Configuration groovyConfiguration = project.getConfigurations().getByName(GroovyBasePlugin.GROOVY_CONFIGURATION_NAME);
    if (!groovyConfiguration.getDependencies().isEmpty()) {
        return groovyConfiguration;
    }

    // alternatively, we could return project.files(Runnable)
    // would differ in at least the following ways: 1. live 2. no autowiring
    return new LazilyInitializedFileCollection() {
        @Override
        public FileCollection createDelegate() {
            GroovyJarFile groovyJar = findGroovyJarFile(classpath);
            if (groovyJar == null) {
                throw new GradleException(String.format("Cannot infer Groovy class path because no Groovy Jar was found on class path: %s", classpath));
            }

            if (groovyJar.isGroovyAll()) {
                return project.files(groovyJar.getFile());
            }

            if (project.getRepositories().isEmpty()) {
                throw new GradleException("Cannot infer Groovy class path because no repository is declared for the project.");
            }

            String notation = groovyJar.getDependencyNotation();
            List<Dependency> dependencies = Lists.newArrayList();
            // project.getDependencies().create(String) seems to be the only feasible way to create a Dependency with a classifier
            dependencies.add(project.getDependencies().create(notation));
            if (groovyJar.getVersion().getMajor() >= 2) {
                // add groovy-ant to bring in AntGroovyCompiler
                dependencies.add(project.getDependencies().create(notation.replace(":groovy:", ":groovy-ant:")));
            }
            return project.getConfigurations().detachedConfiguration(dependencies.toArray(new Dependency[dependencies.size()]));
        }

        // let's override this so that delegate isn't created at autowiring time (which would mean on every build)
        @Override
        public TaskDependency getBuildDependencies() {
            if (classpath instanceof Buildable) {
                return ((Buildable) classpath).getBuildDependencies();
            }
            return new TaskDependency() {
                public Set<? extends Task> getDependencies(Task task) {
                    return Collections.emptySet();
                }
            };
        }
    };
}
 

/**
 * Searches the specified class path for Groovy Jars ({@code groovy(-indy)}, {@code groovy-all(-indy)})
 * and returns a corresponding class path for executing Groovy tools such as the Groovy compiler and Groovydoc tool.
 * The tool versions will match those of the Groovy Jars found. If no Groovy Jars are found on the specified class
 * path, a class path with the contents of the {@code groovy} configuration will be returned.
 *
 * <p>The returned class path may be empty, or may fail to resolve when asked for its contents.
 *
 * @param classpath a class path containing Groovy Jars
 * @return a corresponding class path for executing Groovy tools such as the Groovy compiler and Groovydoc tool
 */
public FileCollection inferGroovyClasspath(final Iterable<File> classpath) {
    // alternatively, we could return project.files(Runnable)
    // would differ in at least the following ways: 1. live 2. no autowiring
    return new LazilyInitializedFileCollection() {
        @Override
        public FileCollection createDelegate() {
            GroovyJarFile groovyJar = findGroovyJarFile(classpath);
            if (groovyJar == null) {
                throw new GradleException(String.format("Cannot infer Groovy class path because no Groovy Jar was found on class path: %s", classpath));
            }

            if (groovyJar.isGroovyAll()) {
                return project.files(groovyJar.getFile());
            }

            if (project.getRepositories().isEmpty()) {
                throw new GradleException("Cannot infer Groovy class path because no repository is declared for the project.");
            }

            String notation = groovyJar.getDependencyNotation();
            List<Dependency> dependencies = Lists.newArrayList();
            // project.getDependencies().create(String) seems to be the only feasible way to create a Dependency with a classifier
            dependencies.add(project.getDependencies().create(notation));
            if (groovyJar.getVersion().getMajor() >= 2) {
                // add groovy-ant to bring in Groovydoc
                dependencies.add(project.getDependencies().create(notation.replace(":groovy:", ":groovy-ant:")));
            }
            return project.getConfigurations().detachedConfiguration(dependencies.toArray(new Dependency[dependencies.size()]));
        }

        // let's override this so that delegate isn't created at autowiring time (which would mean on every build)
        @Override
        public TaskDependency getBuildDependencies() {
            if (classpath instanceof Buildable) {
                return ((Buildable) classpath).getBuildDependencies();
            }
            return new TaskDependency() {
                public Set<? extends Task> getDependencies(Task task) {
                    return Collections.emptySet();
                }
            };
        }
    };
}
 

/**
 * Searches the specified class path for Groovy Jars ({@code groovy(-indy)}, {@code groovy-all(-indy)})
 * and returns a corresponding class path for executing Groovy tools such as the Groovy compiler and Groovydoc tool.
 * The tool versions will match those of the Groovy Jars found. If no Groovy Jars are found on the specified class
 * path, a class path with the contents of the {@code groovy} configuration will be returned.
 *
 * <p>The returned class path may be empty, or may fail to resolve when asked for its contents.
 *
 * @param classpath a class path containing Groovy Jars
 * @return a corresponding class path for executing Groovy tools such as the Groovy compiler and Groovydoc tool
 */
public FileCollection inferGroovyClasspath(final Iterable<File> classpath) {
    final Configuration groovyConfiguration = project.getConfigurations().getByName(GroovyBasePlugin.GROOVY_CONFIGURATION_NAME);
    if (!groovyConfiguration.getDependencies().isEmpty()) {
        return groovyConfiguration;
    }

    // alternatively, we could return project.files(Runnable)
    // would differ in at least the following ways: 1. live 2. no autowiring
    return new LazilyInitializedFileCollection() {
        @Override
        public FileCollection createDelegate() {
            GroovyJarFile groovyJar = findGroovyJarFile(classpath);
            if (groovyJar == null) {
                throw new GradleException(String.format("Cannot infer Groovy class path because no Groovy Jar was found on class path: %s", classpath));
            }

            if (groovyJar.isGroovyAll()) {
                return project.files(groovyJar.getFile());
            }

            if (project.getRepositories().isEmpty()) {
                throw new GradleException("Cannot infer Groovy class path because no repository is declared for the project.");
            }

            String notation = groovyJar.getDependencyNotation();
            List<Dependency> dependencies = Lists.newArrayList();
            // project.getDependencies().create(String) seems to be the only feasible way to create a Dependency with a classifier
            dependencies.add(project.getDependencies().create(notation));
            if (groovyJar.getVersion().getMajor() >= 2) {
                // add groovy-ant to bring in AntGroovyCompiler
                dependencies.add(project.getDependencies().create(notation.replace(":groovy:", ":groovy-ant:")));
            }
            return project.getConfigurations().detachedConfiguration(dependencies.toArray(new Dependency[dependencies.size()]));
        }

        // let's override this so that delegate isn't created at autowiring time (which would mean on every build)
        @Override
        public TaskDependency getBuildDependencies() {
            if (classpath instanceof Buildable) {
                return ((Buildable) classpath).getBuildDependencies();
            }
            return new TaskDependency() {
                public Set<? extends Task> getDependencies(Task task) {
                    return Collections.emptySet();
                }
            };
        }
    };
}