hghave: add cvsnt
cvsnt is a maintained commercial fork of cvs
https://en.wikipedia.org/wiki/CVSNT
It is possible to build a version of it from sources (github),
it requires libpcre and libltdl (libtool).
We already have a test that relates to cvsnt:
test-convert-cvsnt-mergepoints.t
cvsnt installs: cvs, cvslockd, cvsnt, cvsscript
I think we should definitely have a check for cvsnt because it makes
the version checks for cvs make a lot more sense.
When I use the version I built, cvs --version says:
"""
Concurrent Versions System (CVSNT) 2.5.05 (Gan) Build 3744 (Suite) (client/server)
CVSNT 2.5.05 (Apr 4 2016) Copyright (c) 2008 March Hare Software Ltd.
see http://www.march-hare.com/cvspro
CVS Copyright (c) 1989-2001 Brian Berliner, david d `zoo' zuhn,
Jeff Polk, and other authors
CVSNT Copyright (c) 1999-2008 Tony Hoyle and others
see http://www.cvsnt.org
Commercial support and training provided by March Hare Software Ltd.
see http://www.march-hare.com/cvspro
CVSNT may be copied only under the terms of the GNU General Public License v2,
a copy of which can be found with the CVS distribution.
The CVSNT Application API is licensed under the terms of the
GNU Library (or Lesser) General Public License.
Specify the --help option for further information about CVS
"""
#!/usr/bin/env bash
# A simple script for opening merge conflicts in the editor.
# Use the following Mercurial settings to enable it.
#
# [ui]
# merge = editmerge
#
# [merge-tools]
# editmerge.args=$output
# editmerge.check=changed
# editmerge.premerge=keep
FILE="$1"
getlines() {
grep -n "^<<<<<<" "$FILE" | cut -f1 -d:
}
# editor preference loosely based on https://mercurial-scm.org/wiki/editor
# hg showconfig is at the bottom though, since it's slow to run (0.15 seconds)
ED="$HGEDITOR"
if [ "$ED" = "" ] ; then
ED="$VISUAL"
fi
if [ "$ED" = "" ] ; then
ED="$EDITOR"
fi
if [ "$ED" = "" ] ; then
ED="$(hg showconfig ui.editor)"
fi
if [ "$ED" = "" ] ; then
echo "merge failed - unable to find editor"
exit 1
fi
if [ "$ED" = "emacs" ] || [ "$ED" = "nano" ] || [ "$ED" = "vim" ] ; then
FIRSTLINE="$(getlines | head -n 1)"
PREVIOUSLINE=""
# open the editor to the first conflict until there are no more
# or the user stops editing the file
while [ ! "$FIRSTLINE" = "" ] && [ ! "$FIRSTLINE" = "$PREVIOUSLINE" ] ; do
$ED "+$FIRSTLINE" "$FILE"
PREVIOUSLINE="$FIRSTLINE"
FIRSTLINE="$(getlines | head -n 1)"
done
else
$ED "$FILE"
fi
# get the line numbers of the remaining conflicts
CONFLICTS="$(getlines | sed ':a;N;$!ba;s/\n/, /g')"
if [ ! "$CONFLICTS" = "" ] ; then
echo "merge failed - resolve the conflicts (line $CONFLICTS) then use 'hg resolve --mark'"
exit 1
fi
exit 0