Delete files only if needed
This commit is contained in:
Andrea Cavalli
parent
1d4736bbc0
commit
d1c7212505
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@ -37,7 +37,6 @@ public class MavenPlugin extends AbstractMojo {
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try {
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SourcesGenerator sourcesGenerator = SourcesGenerator.load(configPath.toPath());
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Path genRecordsPath = project.getBasedir().getAbsoluteFile().toPath().resolve("target").resolve("generated-sources").resolve("database-classes");
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FileUtils.deleteDirectory(genRecordsPath.resolve(Path.of(basePackageName.replace('.', File.separatorChar))).toFile());
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Path outPath = genRecordsPath.resolve("java");
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this.project.addCompileSourceRoot(outPath.toString());
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@ -41,11 +41,11 @@ import java.lang.reflect.Array;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.StandardOpenOption;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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@ -103,7 +103,7 @@ public class SourcesGenerator {
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public void generateSources(String basePackageName, Path outPath, boolean useRecordBuilders) throws IOException {
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var hashPath = outPath.resolve(".hash");
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var curHash = computeHash(this.configuration);
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if (Files.isRegularFile(outPath) && Files.isReadable(outPath)) {
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if (Files.isRegularFile(hashPath) && Files.isReadable(hashPath)) {
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var lines = Files.readAllLines(hashPath, StandardCharsets.UTF_8);
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if (lines.size() >= 3) {
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var prevBasePackageName = lines.get(0);
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@ -118,9 +118,22 @@ public class SourcesGenerator {
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}
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}
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// Create the base dir
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if (Files.notExists(outPath)) {
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Files.createDirectories(outPath);
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}
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// Get the files list
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var generatedFilesToDelete = Files
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.walk(outPath)
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.filter(Files::isRegularFile)
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.map(outPath::relativize)
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.collect(Collectors.toCollection(HashSet::new));
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// Update the hash
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Files.writeString(hashPath, basePackageName + '\n' + useRecordBuilders + '\n' + curHash + '\n',
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StandardCharsets.UTF_8, TRUNCATE_EXISTING, WRITE, CREATE);
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markFileAsCreated(generatedFilesToDelete, outPath, hashPath);
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// Fix the configuration
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for (Entry<String, InterfaceDataConfiguration> interfacesDatum : configuration.interfacesData.entrySet()) {
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@ -181,7 +194,7 @@ public class SourcesGenerator {
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.build());
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versionsClass.addField(versionsInstances.build());
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// Save the resulting class in the main package
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writeClass(outPath, joinPackage(basePackageName, ""), versionsClass);
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writeClass(generatedFilesToDelete, outPath, joinPackage(basePackageName, ""), versionsClass);
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// Create the BasicType class
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{
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@ -197,7 +210,7 @@ public class SourcesGenerator {
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}
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}
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// Save the resulting class in the main package
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writeClass(outPath, joinPackage(basePackageName, ""), basicTypeClass);
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writeClass(generatedFilesToDelete, outPath, joinPackage(basePackageName, ""), basicTypeClass);
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}
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// Create the GenericType class
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@ -214,7 +227,7 @@ public class SourcesGenerator {
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}
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}
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// Save the resulting class in the main package
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writeClass(outPath, joinPackage(basePackageName, ""), genericTypeClass);
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writeClass(generatedFilesToDelete, outPath, joinPackage(basePackageName, ""), genericTypeClass);
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}
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// Create the IVersion class
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@ -267,7 +280,7 @@ public class SourcesGenerator {
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}
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// Save the resulting class in the main package
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writeClass(outPath, joinPackage(basePackageName, ""), iVersionClass);
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writeClass(generatedFilesToDelete, outPath, joinPackage(basePackageName, ""), iVersionClass);
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}
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// Create the CurrentVersion class
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@ -444,7 +457,7 @@ public class SourcesGenerator {
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currentVersionClass.addMethod(upgradeDataToLatestVersion2Method);
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}
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// Save the resulting class in the main package
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writeClass(outPath, joinPackage(basePackageName, "current"), currentVersionClass);
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writeClass(generatedFilesToDelete, outPath, joinPackage(basePackageName, "current"), currentVersionClass);
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}
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for (Entry<String, VersionConfiguration> mapEntry : configuration.versions.entrySet()) {
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@ -871,7 +884,8 @@ public class SourcesGenerator {
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}
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// Save the resulting class in the main package
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try {
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writeClass(outPath, joinPackage(versionPackage, "serializers"), nullableSerializerClass);
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writeClass(generatedFilesToDelete,
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outPath, joinPackage(versionPackage, "serializers"), nullableSerializerClass);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -1076,7 +1090,8 @@ public class SourcesGenerator {
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}
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try {
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writeClass(outPath, joinPackage(versionPackage, "data.nullables"), nullableTypeClass);
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writeClass(generatedFilesToDelete,
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outPath, joinPackage(versionPackage, "data.nullables"), nullableTypeClass);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -1144,7 +1159,8 @@ public class SourcesGenerator {
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}
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// Save the resulting class in the main package
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try {
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writeClass(outPath, joinPackage(versionPackage, "serializers"), arraySerializerClass);
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writeClass(generatedFilesToDelete,
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outPath, joinPackage(versionPackage, "serializers"), arraySerializerClass);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -1215,7 +1231,7 @@ public class SourcesGenerator {
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}
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// Save the resulting class in the main package
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try {
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writeClass(outPath, joinPackage(versionPackage, "serializers"), serializerClass);
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writeClass(generatedFilesToDelete, outPath, joinPackage(versionPackage, "serializers"), serializerClass);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -1590,7 +1606,7 @@ public class SourcesGenerator {
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}
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// Save the resulting class in the main package
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try {
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writeClass(outPath, joinPackage(versionPackage, "upgraders"), upgraderClass);
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writeClass(generatedFilesToDelete, outPath, joinPackage(versionPackage, "upgraders"), upgraderClass);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -1699,7 +1715,7 @@ public class SourcesGenerator {
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}
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// Save the resulting class in the main package
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try {
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writeClass(outPath, joinPackage(versionPackage, "serializers"), serializerClass);
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writeClass(generatedFilesToDelete, outPath, joinPackage(versionPackage, "serializers"), serializerClass);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -2001,7 +2017,7 @@ public class SourcesGenerator {
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}
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// Save the resulting class in the main package
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try {
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writeClass(outPath, joinPackage(versionPackage, ""), versionClass);
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writeClass(generatedFilesToDelete, outPath, joinPackage(versionPackage, ""), versionClass);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -2014,7 +2030,7 @@ public class SourcesGenerator {
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iTypeInterface.addModifiers(Modifier.PUBLIC);
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iTypeInterface.addSuperinterface(ClassName.get(Serializable.class));
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try {
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writeClass(outPath, joinPackage(versionPackage, "data"), iTypeInterface);
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writeClass(generatedFilesToDelete, outPath, joinPackage(versionPackage, "data"), iTypeInterface);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -2037,7 +2053,7 @@ public class SourcesGenerator {
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ibasicTypeInterface.addMethod(getBasicTypeMethod.build());
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}
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try {
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writeClass(outPath, joinPackage(versionPackage, "data"), ibasicTypeInterface);
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writeClass(generatedFilesToDelete, outPath, joinPackage(versionPackage, "data"), ibasicTypeInterface);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -2051,7 +2067,8 @@ public class SourcesGenerator {
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inullableITypeInterface.addSuperinterface(iTypeInterfaceType);
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inullableITypeInterface.addSuperinterface(IGenericNullable.class);
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try {
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writeClass(outPath, joinPackage(versionPackage, "data.nullables"), inullableITypeInterface);
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writeClass(generatedFilesToDelete,
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outPath, joinPackage(versionPackage, "data.nullables"), inullableITypeInterface);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -2070,7 +2087,8 @@ public class SourcesGenerator {
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.returns(ClassName.get(joinPackage(basePackageName, ""), "BasicType"));
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inullableBasicTypeInterface.addMethod(getBasicTypeMethod.build());
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try {
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writeClass(outPath, joinPackage(versionPackage, "data.nullables"), inullableBasicTypeInterface);
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writeClass(generatedFilesToDelete,
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outPath, joinPackage(versionPackage, "data.nullables"), inullableBasicTypeInterface);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -2089,7 +2107,8 @@ public class SourcesGenerator {
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.returns(ClassName.get(joinPackage(basePackageName, ""), "GenericType"));
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inullablegenericTypeInterface.addMethod(getBasicTypeMethod.build());
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try {
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writeClass(outPath, joinPackage(versionPackage, "data.nullables"), inullablegenericTypeInterface);
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writeClass(generatedFilesToDelete,
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outPath, joinPackage(versionPackage, "data.nullables"), inullablegenericTypeInterface);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -2175,7 +2194,7 @@ public class SourcesGenerator {
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}
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try {
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writeClass(outPath, joinPackage(versionPackage, "data"), typeInterface);
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writeClass(generatedFilesToDelete, outPath, joinPackage(versionPackage, "data"), typeInterface);
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} catch (IOException e) {
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throw new IOError(e);
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}
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@ -2342,18 +2361,24 @@ public class SourcesGenerator {
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typeClass.addMethod(ofConstructor.build());
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try {
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writeClass(outPath, joinPackage(versionPackage, "data"), typeClass);
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writeClass(generatedFilesToDelete, outPath, joinPackage(versionPackage, "data"), typeClass);
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} catch (IOException e) {
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throw new IOError(e);
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}
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}
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}
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// Create an upgrader
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for (Path pathToDelete : generatedFilesToDelete) {
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Files.delete(outPath.resolve(pathToDelete));
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logger.info("Deleting unused file: {}", pathToDelete);
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}
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}
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}
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private void markFileAsCreated(Set<Path> generatedFilesToDelete, Path basePath, Path filePath) {
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generatedFilesToDelete.remove(basePath.relativize(filePath));
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}
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private String computeHash(SourcesGeneratorConfiguration configuration) {
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return Long.toString(configuration.hashCode());
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}
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@ -2930,7 +2955,10 @@ public class SourcesGenerator {
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}
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}
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private void writeClass(Path outPath, String classPackage, Builder versionsClass) throws IOException {
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private void writeClass(HashSet<Path> generatedFilesToDelete,
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Path outPath,
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String classPackage,
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Builder versionsClass) throws IOException {
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var sb = new StringBuilder();
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var typeSpec = versionsClass.build();
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for (String part : classPackage.split("\\.")) {
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@ -2955,6 +2983,7 @@ public class SourcesGenerator {
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} else {
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logger.debug("File {} is the same, unchanged", outJavaFile);
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}
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markFileAsCreated(generatedFilesToDelete, outPath, outJavaFile);
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}
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private String getVersionVarName(String version) {
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