[PATCH] Add script to rewrite manifest to workaround lack of parent deltas

Benoit Boissinot benoit.boissinot at ens-lyon.org
Tue Aug 25 09:16:23 CDT 2009


On Mon, Aug 24, 2009 at 05:16:18PM -0400, Greg Ward wrote:
> # HG changeset patch
> # User Greg Ward <greg-hg at gerg.ca>
> # Date 1233047576 0
> # Node ID 9235025c8eb4219a045b8c9d3e95ce5079b2488d
> # Parent  20ed9909dbd9251f76cacb463c480488eebf736b
> Add script to rewrite manifest to workaround lack of parent deltas.

I tested it in the kernel repo, and there are some nodes with duplicate
parents (p1 = p2), so it needs the fix below.
> +
> +def toposort(rl):
> +    write = sys.stdout.write
> +
> +    children = {}
> +    root = []
> +    # build children and roots
> +    write('reading %d revs ' % len(rl))
> +    try:
> +        for i in rl:
> +            children[i] = []
use set()
> +            parents = [p for p in rl.parentrevs(i) if p != node.nullrev]
> +            for p in parents:
> +                assert p in children
> +                children[p].append(i)
use .add(i)
> +
> +            if len(parents) == 0:
> +                root.append(i)
> +
> +            if i % 1000 == 0:
> +                write('.')
> +    finally:
> +        write('\n')
> +

-- 
:wq


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