andreacavalli/data-generator
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Update files only if it's needed

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This commit is contained in:
Andrea Cavalli 2022-07-19 01:20:16 +02:00
parent ac5a26601e
commit 9899f6cd95
1 changed files with 17 additions and 1 deletions
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18
src/main/java/it/cavallium/data/generator/SourcesGenerator.java
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@ -36,6 +36,7 @@ import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;
import java.lang.reflect.Array;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
@ -2903,7 +2904,22 @@ public class SourcesGenerator {
}
private void writeClass(Path outPath, String classPackage, Builder versionsClass) throws IOException {
JavaFile.builder(classPackage, versionsClass.build()).build().writeTo(outPath);
var sb = new StringBuilder();
JavaFile.builder(classPackage, versionsClass.build()).build().writeTo(sb);
String newFile = sb.toString();
boolean mustWrite;
if (Files.isRegularFile(outPath) && Files.isReadable(outPath)) {
String oldFile = Files.readString(outPath, StandardCharsets.UTF_8);
mustWrite = !oldFile.equals(newFile);
} else {
mustWrite = true;
}
if (mustWrite) {
logger.debug("File {} changed", outPath);
Files.writeString(outPath, newFile);
} else {
logger.debug("File {} is the same, unchanged", outPath);
}
}
private String getVersionVarName(String version) {