A basic scan utility that locates archive files and dumps their file lists.

local_src/com/webcodepro/shrinkit/.cvsignore

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+NufxScan.txt

local_src/com/webcodepro/shrinkit/NufxScan-sample.txt

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+C:\Apple2\backups
+C:\Apple2\shk
+C:\Temp

local_src/com/webcodepro/shrinkit/NufxScan.java

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+package com.webcodepro.shrinkit;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FilenameFilter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+
+/**
+ * Scan through the directories in NufxScan.txt, looking for 
+ * *.SHK and *.SDK files.  When one is found, do a file listing
+ * (including compression types) and dump to screen.
+ * 
+ * @author robgreene@users.sourceforge.net
+ */
+public class NufxScan {
+	public static void main(String[] args) throws IOException {
+		BufferedReader r = new BufferedReader(new InputStreamReader(NufxScan.class.getResourceAsStream("NufxScan.txt")));
+		String line = r.readLine();
+		while (line != null) {
+			scanDirectory(line);
+			line = r.readLine();
+		}
+	}
+	
+	private static void scanDirectory(String dirName) throws IOException {
+		File dir = new File(dirName);
+		if (!dir.isDirectory()) {
+			throw new IllegalArgumentException("'" + dirName + "' is not a directory");
+		}
+		File[] files = dir.listFiles(new FilenameFilter() {
+			public boolean accept(File dir, String name) {
+				return name.toLowerCase().endsWith(".shk") || name.toLowerCase().endsWith(".sdk");
+			}
+		});
+		for (File file : files) {
+			display(file);
+		}
+	}
+	
+	private static void display(File archive) throws IOException {
+		System.out.printf("Details for %s\n\n", archive.getAbsoluteFile());
+		InputStream is = new FileInputStream(archive);
+		if (is == null) {
+			throw new IOException("Unable to locate '" + archive.getAbsoluteFile() + "'");
+		}
+		NuFileArchive a = new NuFileArchive(is);
+		System.out.println("Ver# Threads  FSId FSIn Access   FileType ExtraTyp Stor Thread Formats..... Filename");
+		System.out.println("==== ======== ==== ==== ======== ======== ======== ==== =================== ==============================");
+		for (HeaderBlock b : a.getHeaderBlocks()) {
+			System.out.printf("%04x %08x %04x %04x %08x %08x %08x %04x ",
+					b.getVersionNumber(), b.getTotalThreads(), b.getFileSysId(), b.getFileSysInfo(), b.getAccess(),
+					b.getFileType(), b.getExtraType(), b.getStorageType());
+			int threadsPrinted = 0;
+			String filename = b.getFilename();
+			for (ThreadRecord r : b.getThreadRecords()) {
+				threadsPrinted++;
+				System.out.printf("%04x ", r.getThreadFormat().getThreadFormat());
+				if (r.getThreadKind() == ThreadKind.FILENAME) {
+					filename = r.getText();
+				}
+			}
+			while (threadsPrinted < 4) {
+				System.out.printf("     ");
+				threadsPrinted++;
+			}
+			if (filename == null || filename.length() == 0) {
+				filename = "<Unknown>";
+			}
+			System.out.println(filename);
+		}
+		System.out.println();
+	}
+}