log: fix crash on empty revision with --copies switch
If a revset is empty, .max() raises ValueError.
I don't see any reason to recompute the revs, so I made it reuse the one
returned by logcmdutil.getrevs(). If no revs specified by command line,
the endrev will be smartset.spanset(repo) + 1, which is basically the same
as len(repo), the default of getrenamedfn(). If --follow specified,
revs.max() points to the working parent, which seems more correct.
#!/bin/sh
#
# Use this script to generate startrev.svndump
#
mkdir temp
cd temp
mkdir project-orig
cd project-orig
mkdir trunk
mkdir branches
mkdir tags
cd ..
svnadmin create svn-repo
svnurl=file://`pwd`/svn-repo
svn import project-orig $svnurl -m "init projA"
svn co $svnurl project
cd project
echo a > trunk/a
echo b > trunk/b
svn add trunk/a trunk/b
svn ci -m createab
svn rm trunk/b
svn ci -m removeb
svn up
echo a >> trunk/a
svn ci -m changeaa
# Branch
svn up
svn copy trunk branches/branch1
echo a >> branches/branch1/a
svn ci -m "branch, changeaaa"
echo a >> branches/branch1/a
echo c > branches/branch1/c
svn add branches/branch1/c
svn ci -m "addc,changeaaaa"
svn up
cd ..
svnadmin dump svn-repo > ../startrev.svndump