comparison mercurial/commands.py @ 27469:8914296e74a2

commands: use revlog._deltachain in debugdeltachain

We have a nice API now. Use it.

This does mean we introduce an extra index lookup for each revision.
Considering this is a debug command, the overhead should be acceptable.
We could add the chain size to revlog._deltachain(). However, that
feels like avoidable overhead.

27468:93ac15f03331

    r = cmdutil.openrevlog(repo, 'debugdeltachain', file_, opts)
    index = r.index
    generaldelta = r.version & revlog.REVLOGGENERALDELTA

    def revinfo(rev):
        iterrev = rev
        e = index[iterrev]
        chain = []
        compsize = e[1]
        uncompsize = e[2]
        chainsize = 0

        if generaldelta:

            if e[3] == rev:
                deltatype = 'base'
            else:
                deltatype = 'prev'

        while iterrev != e[3]:
            chain.append(iterrev)
            chainsize += e[1]
            if generaldelta:
                iterrev = e[3]
            else:
                iterrev -= 1
            e = index[iterrev]
        else:
            chainsize += e[1]
            chain.append(iterrev)

        chain.reverse()
        return compsize, uncompsize, deltatype, chain, chainsize

    fm = ui.formatter('debugdeltachain', opts)

    fm.plain('    rev  chain# chainlen     prev   delta       '

27469:8914296e74a2

    r = cmdutil.openrevlog(repo, 'debugdeltachain', file_, opts)
    index = r.index
    generaldelta = r.version & revlog.REVLOGGENERALDELTA

    def revinfo(rev):
        e = index[rev]
        compsize = e[1]
        uncompsize = e[2]
        chainsize = 0

        if generaldelta:

            if e[3] == rev:
                deltatype = 'base'
            else:
                deltatype = 'prev'

        chain = r._deltachain(rev)[0]
        for iterrev in chain:
            e = index[iterrev]
            chainsize += e[1]

        return compsize, uncompsize, deltatype, chain, chainsize

    fm = ui.formatter('debugdeltachain', opts)

    fm.plain('    rev  chain# chainlen     prev   delta       '