gnodet commented on code in PR #77:
URL: https://github.com/apache/maven-archiver/pull/77#discussion_r1859352079
##########
src/main/java/org/apache/maven/shared/archiver/PomPropertiesUtil.java:
##########
@@ -61,34 +59,29 @@ private boolean sameContents(Properties props, Path file)
throws IOException {
return fileProps.equals(props);
}
- private void createPropertiesFile(Properties properties, Path outputFile,
boolean forceCreation)
+ private void createPropertiesFile(Properties unsortedProperties, Path
outputFile, boolean forceCreation)
throws IOException {
Path outputDir = outputFile.getParent();
if (outputDir != null && !Files.isDirectory(outputDir)) {
Files.createDirectories(outputDir);
}
- if (!forceCreation && sameContents(properties, outputFile)) {
+ if (!forceCreation && sameContents(unsortedProperties, outputFile)) {
return;
}
- try (PrintWriter pw = new PrintWriter(outputFile.toFile(),
StandardCharsets.ISO_8859_1.name());
- StringWriter sw = new StringWriter()) {
-
- properties.store(sw, null);
-
- List<String> lines = new ArrayList<>();
- try (BufferedReader r = new BufferedReader(new
StringReader(sw.toString()))) {
- String line;
- while ((line = r.readLine()) != null) {
- if (!line.startsWith("#")) {
- lines.add(line);
- }
- }
- }
-
- Collections.sort(lines);
- for (String l : lines) {
- pw.println(l);
+ // For reproducible builds, sort the properties and drop comments.
+ // The java.util.Properties class doesn't guarantee order so we have
+ // to write the file using a Writer.
+ Set<String> propertyNames = unsortedProperties.stringPropertyNames();
+ List<String> sortedPropertyNames = new ArrayList<>(propertyNames);
+ Collections.sort(sortedPropertyNames);
+
+ try (Writer out = Files.newBufferedWriter(outputFile,
StandardCharsets.ISO_8859_1)) {
+ for (String key : sortedPropertyNames) {
+ out.write(key);
+ out.write(": ");
+ out.write(unsortedProperties.getProperty(key));
Review Comment:
And also:
> [...] the input/output stream is encoded in ISO 8859-1 character encoding.
Characters that cannot be directly represented in this encoding can be written
using Unicode escapes as defined in section [3.3
(https://docs.oracle.com/javase/specs/jls/se24/html/jls-3.html#jls-3.3) of The
Java Language Specification; only a single 'u' character is allowed in an
escape sequence.
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