comparison hgext/largefiles/lfutil.py @ 47280:1766130fe9ba

dirstate-v2: Change the on-disk format when the requirement is enabled

For now, the format is the same except with an additional marker at the start.

This marker is redundant: for existing repositories it is `.hg/requires` that
determines which format to use. For new repositories, it is the new
`format.exp-dirstate-v2` config. There is no upgrade or downgrade so far.

Most of the changes are about plumbing a boolean through layers of APIs to
indicate which format should be used.

Differential Revision: https://phab.mercurial-scm.org/D10719

47279:40b51c28b242

    encoding,
    error,
    httpconnection,
    match as matchmod,
    pycompat,
    scmutil,
    sparse,
    util,
    vfs as vfsmod,
)

    the repo root, but it is saved in .hg/largefiles/dirstate.
    """
    vfs = repo.vfs
    lfstoredir = longname
    opener = vfsmod.vfs(vfs.join(lfstoredir))
    lfdirstate = largefilesdirstate(
        opener,
        ui,
        repo.root,
        repo.dirstate._validate,
        lambda: sparse.matcher(repo),
        repo.nodeconstants,
    )

    # If the largefiles dirstate does not exist, populate and create
    # it. This ensures that we create it on the first meaningful
    # largefiles operation in a new clone.

47280:1766130fe9ba

    encoding,
    error,
    httpconnection,
    match as matchmod,
    pycompat,
    requirements,
    scmutil,
    sparse,
    util,
    vfs as vfsmod,
)

    the repo root, but it is saved in .hg/largefiles/dirstate.
    """
    vfs = repo.vfs
    lfstoredir = longname
    opener = vfsmod.vfs(vfs.join(lfstoredir))
    use_dirstate_v2 = requirements.DIRSTATE_V2_REQUIREMENT in repo.requirements
    lfdirstate = largefilesdirstate(
        opener,
        ui,
        repo.root,
        repo.dirstate._validate,
        lambda: sparse.matcher(repo),
        repo.nodeconstants,
        use_dirstate_v2,
    )

    # If the largefiles dirstate does not exist, populate and create
    # it. This ensures that we create it on the first meaningful
    # largefiles operation in a new clone.