Yeah, it appears that diff cannot appropriately parse Unicode filenames.
I tested this quite a bit and discovered that diff can distinguish
filenames if
* they are different lengths or
* they have ASCII characters that are different (or in different locations).
Otherwise it fails. Simple case:
$ ls -R
.:
1 2
./1:
セ
./2:
ホ
$diff 1 2
diff 1/セ 2/ホ
1,2c1,2
< File in dir 1 called:
< セ
---
> File in dir 2 called:
> ホ
Whereas, it should behave equivalently to:
$ls -R
.:
1 2
./1:
セ1
./2:
ホ2
$diff 1 2
Only in 1: セ1
Only in 2: ホ2
** Changed in: diffutils (Ubuntu)
Status: Incomplete => Confirmed
--
diff is confused by japanese filenames
https://bugs.launchpad.net/bugs/130553
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