bugGNU patch - Bugs: bug #26539, Cannot create empty files


bug #26539: Cannot create empty files

Submitted by:  Andreas Gruenbacher <agruen>
Submitted on:  Tue 12 May 2009 01:16:59 PM UTC  
Votes:  1  
Category:  None Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open

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Fri 17 Sep 2010 11:47:19 AM UTC, comment #2: 

Note that the "diff --git" format which patch understands to some degree now, handles empty files.

Andreas Gruenbacher <agruen>
Project Administrator
Sun 31 Jan 2010 01:52:12 PM UTC, comment #1: 

This is especially annoying while communicating changes to Python projects, where the absence of empty _init_.py files affects correctness.

Baurzhan Ismagulov <ibr>
Tue 12 May 2009 01:16:59 PM UTC, original submission:  

diff wil not create any output for empty files,

   $ echo -n '' > f
   $ diff -u /dev/null f

and patch will not create files from patches with only an Index line:

   Index: filename

This is confusing because Subversion does create such patches. This problem should be looked into when adding support for git extended headers (which support things like rename, copy, and mode changes).

Andreas Gruenbacher <agruen>
Project Administrator


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