Hi subversion developers,
I wish there were a better mechanism for specifying a file for example
"two changes ago". I have emacs macros that make it very easy to do
"diff between workfile/repository-version and X changes ago". For
example I have "M-2 M-v M-=" to compare the workfile to the file 2
changes ago. This only works in cvs by assuming that version numbers
are strictly increasing by 1 (which is almost always true in cvs).
Subversion's PREV revision keyword is useful for comparing to _1_
change ago but not any other. To compare to 2 changes ago you have to
look at the log output for the previous change's revision number,
requiring much more than 4 keystrokes (in my setup) and much more
brain processing power by user.
So I wish there were a way to specify "X changes ago" to the
--revision switch. The PREV and COMMITTED revision keywords already
exist which consider individual files rather than the repository as a
whole. Maybe "PREV2", "PREV3" tags, etc if that isn't too ugly a
kludge or some new syntax like "-2", i.e. "svn diff -1:HEAD foo.c"
equivalent to PREV:HEAD and also allowing e.g. "svn diff -2:1234
foo.c" comparing the file at revision 1234 and two changes before
that. Maybe I'm thinking too cvs/rcs-ish but even in a project it is
useful to think about a file as a unit when you can easily check
successive changes in the file's history. It would simply be a
shortcut to having to check svn log.
--
Karl Chen / quarl@quarl.org
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Received on Sun Mar 30 21:56:41 2003