Bug 758098 – File comparison does not show any differences

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Bug 758098 - File comparison does not show any differences


Summary:	File comparison does not show any differences


Status:	RESOLVED DUPLICATE of bug 757963

Product:	meld
Classification:	Other
Component:	filediff
Version:	3.14.x
Hardware:	Other Linux

Importance:	Normal blocker
Target Milestone:	---
Assigned To:	meld-maint
QA Contact:	meld-maint

URL:
Whiteboard:

Duplicates:	758154 (view as bug list)
Depends on:
Blocks:

Reported:	2015-11-14 10:53 UTC by Dimitri Kaparis
Modified:	2015-11-16 03:08 UTC

See Also:
GNOME target:	---
GNOME version:	---

Attachments
First sample file for comaprison (21 bytes, text/plain) 2015-11-14 22:32 UTC, Dimitri Kaparis	Details
Second sample file for comparison (39 bytes, text/plain) 2015-11-14 22:34 UTC, Dimitri Kaparis	Details

Description Dimitri Kaparis 2015-11-14 10:53:21 UTC

Under Arch linux, using current package meld 3.14.1-1.
gtk3 version is 3.18.3-1.

Comparing any two files does not display any navigable differences, but just the contents of the two files is listed in the panes instead. No text filters are active in preferences dialog. Directory comparison correctly detects modified files between directories, but opening them for comparison from there gives the same result.

Also tried manually downloading and running from the meld-3.14.1.tar.xz package, with same result.

Comment 1 Kai Willadsen 2015-11-14 20:49:22 UTC

Can you attach the two files, or any other files that will reproduce this? Also, if there anything printed on the command line when you see this bug?

Comment 2 Dimitri Kaparis 2015-11-14 22:32:54 UTC

Created attachment 315615 [details]
First sample file for comaprison

Comment 3 Dimitri Kaparis 2015-11-14 22:34:59 UTC

Created attachment 315617 [details]
Second sample file for comparison

Attached two sample files, their first two lines are identical, the third is different; meld displays them with no differences highlighted or navigable.

Comment 4 Dimitri Kaparis 2015-11-14 22:37:46 UTC

This is the printed output when starting comparison. I hadn't noticed it before because Meld used to spit a lot of assertion messages while operating normally in the past.

Traceback (most recent call last):

+ Trace 235723

File "/usr/lib/python2.7/site-packages/meld/task.py", line 110 in iteration
```
ret = next(task)
```
File "/usr/lib/python2.7/site-packages/meld/filediff.py", line 1270 in _set_files_internal
```
for i in self._diff_files():
```
File "/usr/lib/python2.7/site-packages/meld/filediff.py", line 1227 in _diff_files
```
while next(step) is None:
```
File "/usr/lib/python2.7/site-packages/meld/diffutil.py", line 466 in set_sequences_iter
```
while next(work) is None:
```
File "/usr/lib/python2.7/site-packages/meld/matchers.py", line 246 in initialise
```
a, b = self.preprocess()
```
File "/usr/lib/python2.7/site-packages/meld/matchers.py", line 155 in preprocess
```
a, b = self.preprocess_remove_prefix_suffix(self.a, self.b)
```
File "/usr/lib/python2.7/site-packages/meld/matchers.py", line 109 in preprocess_remove_prefix_suffix
```
self.common_prefix = find_common_prefix(a, b)
```
File "/usr/lib/python2.7/site-packages/meld/matchers.py", line 43 in find_common_prefix
```
if a[0] == b[0]:
```
File "/usr/lib/python2.7/site-packages/meld/meldbuffer.py", line 268 in __getitem__
```
line_end = line_start.copy()
```

AttributeError: 'tuple' object has no attribute 'copy'

Comment 5 Kai Willadsen 2015-11-14 22:46:30 UTC

Thanks for that. The bug you're seeing has already been fixed in GTK+ 3.18.4.

*** This bug has been marked as a duplicate of bug 757963 ***

Comment 6 Kai Willadsen 2015-11-16 03:08:21 UTC

*** Bug 758154 has been marked as a duplicate of this bug. ***