[SVN-2233] Show only changes of copied files in "svnlook diff"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: all
• Fix Version/s: 1.3-consider
• Component/s: svnlook
• Assignee: Unassigned
• Reporter: Subversion Importer
• Created: 25/Feb/05 18:41
• Updated: 27/Oct/18 16:36
• Resolved: 12/Oct/05 18:53

Description

(I'm using Subversion 1.0.9 on this server, but I believe this behavior has not changed since.)

Currently, svnlook diff shows every line as added on a copied file. It displays the headers I would 
expect:

Copied: NEWPATH (from rev OLDREV, OLDPATH)
===============================================================
====
--- OLDPATH        OLDDATE (rev OLDREV)
+++ NEWPATH        NEWDATE (rev NEWREV)

but the actual diff is not consistent with that. Rather than showing the changes between 
OLDPATH@OLDREV and NEWPATH@NEWREV, it shows the differences between an empty file and 
NEWPATH@NEWREV.

This is quite odd, especially since the diff output is skipped entirely if the file is not changed. It seems 
the intent was to show changes in the file as it was copied, but that's not what it does.

I'd like to see the diff reflect the header. I get HTMLized color diff emails with SVN::Notify, which uses 
"svnlook diff" internally. It'd be more useful to me to see the changes in the copied file, as mailer.py 
does.

Otherwise, the header should be changed to be accurate. Maybe there could be a commandline 
argument to switch between the two, if others find this behavior more useful.

Original issue reported by slamb