convert/gnuarch: parse continuation-of revisions in gnuarch source In GNU Arch, continuation-of was often used for: - tagging revisions - continue working on a project in a new archive, because arch was scaling poorly in revision numbers (cat-logs were slow to be parsed and scanned through) - very similar to the previous point, fork his own branch of a project. Parsing this header information will allow to 'follow' new history because it often hints at older/forked/personal revision trees. This patch however just implements the parsing of the continuation-of header. A followup patch will implement the proper use of this new information.

#!/bin/sh

hg init a
cd a
echo a > a
hg add -n
hg st
hg add
hg st

echo b > b
hg add -n b
hg st
hg add b || echo "failed to add b"
hg st
echo % should fail
hg add b
hg st

hg ci -m 0
echo % should fail
hg add a

echo aa > a
hg ci -m 1
hg up 0
echo aaa > a
hg ci -m 2

hg merge
hg st
echo % should fail
hg add a
hg st
hg resolve -m a
hg ci -m merge

echo % issue683
hg rm a
hg st
echo a > a
hg add a
hg st

hg add c && echo "unexpected addition of missing file"
echo c > c
hg add d c && echo "unexpected addition of missing file"
hg st