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.

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#!/bin/sh

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echo % init foo-base

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hg init foo-base

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echo % create alpha in first repo

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cd foo-base

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echo 'alpha' > alpha

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hg ci -A -m 'add alpha' -d '1 0'

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cd ..

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echo % clone foo-base to foo-work

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hg clone foo-base foo-work

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echo % create beta in second repo

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cd foo-work

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echo 'beta' > beta

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hg ci -A -m 'add beta' -d '2 0'

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cd ..

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echo % create gamma in first repo

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cd foo-base

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echo 'gamma' > gamma

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hg ci -A -m 'add gamma' -d '3 0'

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cd ..

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echo % pull into work and merge

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cd foo-work

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hg pull -q

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hg merge

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echo % revert to changeset 1 to simulate a failed merge

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rm alpha beta gamma

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hg up -C 1