From d62f04fd150ac13e122b3e0a47a844f50b9f9349 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sat, 9 Oct 2010 21:00:34 +0100
Subject: Convert progress reporting to happen using ttystatus.

---
 dupfiles | 61 ++++++++++++++++++++++++++++++++++++-------------------------
 1 file changed, 36 insertions(+), 25 deletions(-)

diff --git a/dupfiles b/dupfiles
index d78b427..8c06c3d 100755
--- a/dupfiles
+++ b/dupfiles
@@ -25,6 +25,7 @@ import random
 import stat
 import sys
 import time
+import ttystatus
 
 
 class FileStats(object):
@@ -78,10 +79,13 @@ class DuplicateFileFinder(object):
         self.progress = progress
 
     def collect(self, root):
+        ts = ttystatus.TerminalStatus()
         if self.progress:
-            sys.stderr.write('Scanning %s\n' % root)
+            ts.add(ttystatus.Literal('Scanning '))
+            ts.add(ttystatus.Pathname('dirname'))
 
         for dirname, subdirs, filenames in os.walk(root):
+            ts['dirname'] = dirname
             subdirs.sort()
             filenames.sort()
             pathnames = [os.path.join(dirname, f) for f in filenames]
@@ -93,36 +97,43 @@ class DuplicateFileFinder(object):
                         self.by_size[st.st_size].append(t)
                     else:
                         self.by_size[st.st_size] = [t]
+        ts.clear()
 
     def duplicates(self):
+        total_bytes = sum(len(tuples) * size
+                          for size, tuples in self.by_size.iteritems())
+
+        ts = ttystatus.TerminalStatus(period=0.5)
+        ts['done'] = 0
         if self.progress:
-            sys.stderr.write('Looking for groups of files of same size\n')
-        skip = [size for size in self.by_size if len(self.by_size[size]) == 1]
-        for size in skip:
-            del self.by_size[size]
-        if self.progress:
-            sys.stderr.write('Ignored %d groups of one file each\n' % len(skip))
-            sys.stderr.write('There are %d groups of files of same size\n' %
-                             len(self.by_size))
+            ts.add(ttystatus.Literal('Comparing: '))
+            ts.add(ttystatus.ByteSize('done'))
+            ts.add(ttystatus.Literal('/'))
+            ts.add(ttystatus.ByteSize('total'))
+            ts.add(ttystatus.Literal(' ('))
+            ts.add(ttystatus.PercentDone('done', 'total'))
+            ts.add(ttystatus.Literal('), group '))
+            ts.add(ttystatus.Counter('size'))
+            ts.add(ttystatus.Literal('/'))
+            ts.add(ttystatus.Literal(str(len(self.by_size))))
+            ts.add(ttystatus.Literal(' ('))
+            ts.add(ttystatus.ByteSize('size'))
+            ts.add(ttystatus.Literal(')'))
 
-        total_bytes = sum(len(tuples) * size
-                            for size, tuples in self.by_size.iteritems())
         result = []
-        done_bytes = 0
-        ith_group = 0
+        ith = 0
         for size, tuples in sorted(self.by_size.iteritems()):
-            ith_group += 1
-            if self.progress:
-                sys.stderr.write('Group %d/%d (%d files of %d bytes)\n' %
-                                 (ith_group, len(self.by_size), 
-                                  len(tuples), size))
-            if len(set((dev, ino) for dev, ino, pathname in tuples)) == 1:
-                # All duplicates are hardlinks to the same inode. Skip.
-                done_bytes += len(tuples) * size
-            else:
-                new_dups = self.find_duplicates([p for d, i, p in tuples])
-                result += new_dups
-                done_bytes += len(tuples) * size
+            ith += 1
+            if len(set((dev, ino) for dev, ino, pathname in tuples)) > 1:
+                # All files are not hardlinks to the same inode.
+                # (This also excludes groups with just one file.)
+                result += self.find_duplicates([p for d, i, p in tuples])
+            ts['size'] = size
+            ts['done'] += len(tuples) * size
+            ts['total'] = total_bytes
+
+        if self.progress:
+            ts.finish()
 
         return result
 
-- 
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