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Fix crash on empty index file

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comp500 2019-08-11 22:37:42 +01:00
parent d21668afa6
commit ca4a13589d
1 changed files with 5 additions and 1 deletions
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6
src/main/java/link/infra/packwiz/installer/UpdateManager.java
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@ -296,6 +296,10 @@ public class UpdateManager {
ui.submitProgress(new InstallProgress("Comparing new files...")); ui.submitProgress(new InstallProgress("Comparing new files..."));
// TODO: progress bar? // TODO: progress bar?
if (indexFile.files == null || indexFile.files.size() == 0) {
System.out.println("Warning: Index is empty!");
indexFile.files = new ArrayList<>();
}
List<DownloadTask> tasks = DownloadTask.createTasksFromIndex(indexFile, indexFile.hashFormat, opts.side); List<DownloadTask> tasks = DownloadTask.createTasksFromIndex(indexFile, indexFile.hashFormat, opts.side);
// If the side changes, invalidate EVERYTHING just in case // If the side changes, invalidate EVERYTHING just in case
// Might not be needed, but done just to be safe // Might not be needed, but done just to be safe
@ -328,7 +332,7 @@ public class UpdateManager {
tasks.parallelStream().forEach(f -> f.downloadMetadata(indexFile, indexUri)); tasks.parallelStream().forEach(f -> f.downloadMetadata(indexFile, indexUri));
List<IExceptionDetails> failedTasks = tasks.stream().filter(t -> t.getException() != null).collect(Collectors.toList()); List<IExceptionDetails> failedTasks = tasks.stream().filter(t -> t.getException() != null).collect(Collectors.toList());
if (failedTasks.size() > 0) { if (!failedTasks.isEmpty()) {
IExceptionDetails.ExceptionListResult exceptionListResult; IExceptionDetails.ExceptionListResult exceptionListResult;
try { try {
exceptionListResult = ui.showExceptions(failedTasks, tasks.size(), true).get(); exceptionListResult = ui.showExceptions(failedTasks, tasks.size(), true).get();