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* Support #2969: 启动前日志列出mods目录的jar文件 * Support #2969: 启动前日志列出mods目录jar文件 * Support #2969: 启动前日志中使用字符画列出mods目录模组文件 * Support #2969: 启动前日志中使用字符画列出mods目录模组文件 * Support #2969: 启动前日志中使用字符画列出mods目录模组文件 * Support #2969: 日志列出mods目录时不再过滤文件后缀 * Support #2969: 启动时日志列出mods目录（代码优化） * Support #2969: 启动时日志列出mods目录（不再列出Zip内容） * Support #2969 * Fix: checkstyle --------- Co-authored-by: YELANDAOKONG <[email protected]>
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99 changes: 99 additions & 0 deletions
99
HMCLCore/src/main/java/org/jackhuang/hmcl/util/io/DirectoryStructurePrinter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| package org.jackhuang.hmcl.util.io; | ||
|
|
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| import java.io.IOException; | ||
| import java.nio.file.FileVisitResult; | ||
| import java.nio.file.FileVisitor; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
| import java.nio.file.attribute.BasicFileAttributes; | ||
|
|
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| final class DirectoryStructurePrinter { | ||
| private DirectoryStructurePrinter() { | ||
| } | ||
|
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| public static String list(Path path, int maxDepth) throws IOException { | ||
| StringBuilder output = new StringBuilder(128); | ||
| list(path, maxDepth, output); | ||
| output.setLength(output.length() - 1); | ||
| return output.toString(); | ||
| } | ||
|
|
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| private static void list(Path path, int maxDepth, StringBuilder output) throws IOException { | ||
| output.append("Filesystem structure of: ").append(path).append('\n'); | ||
|
|
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| if (!Files.exists(path)) { | ||
| pushMessage(output, "nonexistent path", 1); | ||
| return; | ||
| } | ||
| if (Files.isRegularFile(path)) { | ||
| pushMessage(output, "regular file path", 1); | ||
| return; | ||
| } | ||
| if (Files.isDirectory(path)) { | ||
| Files.walkFileTree(path, new FileVisitor<Path>() { | ||
| private boolean isFolderEmpty; | ||
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|
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| private int depth = 1; | ||
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| @Override | ||
| public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) { | ||
| isFolderEmpty = true; | ||
|
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| pushFile(output, dir, depth); | ||
| if (depth == maxDepth) { | ||
| pushMessage(output, "too deep", depth); | ||
| return FileVisitResult.SKIP_SUBTREE; | ||
| } | ||
|
|
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| depth++; | ||
| return FileVisitResult.CONTINUE; | ||
| } | ||
|
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| @Override | ||
| public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) { | ||
| isFolderEmpty = false; | ||
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| pushFile(output, file, depth); | ||
| return FileVisitResult.CONTINUE; | ||
| } | ||
|
|
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| @Override | ||
| public FileVisitResult visitFileFailed(Path file, IOException exc) { | ||
| visitFile(file, null); | ||
|
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| pushMessage(output, exc.toString(), depth); | ||
| return FileVisitResult.CONTINUE; | ||
| } | ||
|
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| @Override | ||
| public FileVisitResult postVisitDirectory(Path dir, IOException exc) { | ||
| if (isFolderEmpty) { | ||
| pushMessage(output, "empty directory", depth); | ||
| } | ||
|
|
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| depth--; | ||
| return FileVisitResult.CONTINUE; | ||
| } | ||
| }); | ||
| return; | ||
| } | ||
|
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| pushMessage(output, "unknown file type", 1); | ||
| } | ||
|
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| private static void pushFile(StringBuilder output, Path file, int depth) { | ||
| output.append("|"); | ||
| for (int i = 1; i < depth; i++) { | ||
| output.append(" |"); | ||
| } | ||
| output.append("-> ").append(FileUtils.getName(file)).append('\n'); | ||
| } | ||
|
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| private static void pushMessage(StringBuilder output, String message, int depth) { | ||
| output.append("| "); | ||
| for (int i = 1; i < depth; i++) { | ||
| output.append(" | "); | ||
| } | ||
| output.append('<').append(message).append(">\n"); | ||
| } | ||
| } |
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