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 'root' >root
hg add root
hg commit -d '0 0' -u test -m "Adding root node"
echo 'a' >a
hg add a
hg branch a
hg commit -d '1 0' -u test -m "Adding a branch"
hg branch q
echo 'aa' >a
hg branch -C
hg commit -d '2 0' -u test -m "Adding to a branch"
hg update -C 0
echo 'b' >b
hg add b
hg branch b
hg commit -d '2 0' -u test -m "Adding b branch"
echo 'bh1' >bh1
hg add bh1
hg commit -d '3 0' -u test -m "Adding b branch head 1"
hg update -C 2
echo 'bh2' >bh2
hg add bh2
hg commit -d '4 0' -u test -m "Adding b branch head 2"
echo 'c' >c
hg add c
hg branch c
hg commit -d '5 0' -u test -m "Adding c branch"
echo 'd' >d
hg add d
hg branch 'a branch name much longer than the default justification used by branches'
hg commit -d '6 0' -u test -m "Adding d branch"
hg branches
echo '-------'
hg branches -a
echo "--- Branch a"
hg log -b a
echo "---- Branch b"
hg log -b b