Merge pull request #4200 from tstoeter/develop

Allow processing multiple files sequentially in a single run, with file names read from stdin.

components/bio-formats-tools/src/loci/formats/tools/ImageInfo.java

@@ -37,6 +37,9 @@
 import java.io.File;
 import java.util.Hashtable;
 import java.util.StringTokenizer;
+import java.util.Scanner;
+import java.util.Arrays;
+import java.util.List;
 
 import loci.common.ByteArrayHandle;
 import loci.common.DataTools;
@@ -311,6 +314,8 @@ public void printUsage() {
       "",
       "    -version: print the library version and exit",
       "        file: the image file to read",
+      "              if - is passed, process multiple files",
+      "              with file names read line-wise from stdin",
       "      -nopix: read metadata only, not pixels",
       "     -nocore: do not output core metadata",
       "     -nometa: do not parse format-specific metadata table",
@@ -1126,7 +1131,25 @@ private void printDimension(String dim, int size, int effectiveSize,
 
   public static void main(String[] args) throws Exception {
     DebugTools.enableLogging("INFO");
-    if (!new ImageInfo().testRead(args)) System.exit(1);
+
+    List<String> argsList = Arrays.asList(args);
+    int idx = argsList.indexOf("-");
+
+    if (idx >= 0) {
+      Scanner scanner = new Scanner(System.in);
+      String[] newArgs = argsList.toArray(new String[0]);
+
+      while (scanner.hasNext()) {
+        newArgs[idx] = scanner.nextLine();
+	System.out.println("====% " + newArgs[idx]);
+        if (!new ImageInfo().testRead(newArgs)) System.exit(1);
+      }
+      scanner.close();
+    }
+    else {
+      if (!new ImageInfo().testRead(args)) System.exit(1);
+   }
   }
 
 }
+