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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#

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mkdir t

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cd t

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hg init

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echo 0 > a

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echo 0 > b

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hg ci -A -m m -d "1000000 0"

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hg rm a

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hg cat a

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hg cat --decode a # more tests in test-encode

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echo 1 > b

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hg ci -m m -d "1000000 0"

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echo 2 > b

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hg cat -r 0 a

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hg cat -r 0 b

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hg cat -r 1 a

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hg cat -r 1 b