comparison mercurial/copies.py @ 26315:3c6902ed9f07

copies: rename ctx() to getfctx() for clarity

26314:119202d4d7a4

    m2 = c2.manifest()
    ma = ca.manifest()


    def setupctx(ctx):
        """return a 'makectx' function suitable for checkcopies usage from ctx

        We have to re-setup the function building 'filectx' for each
        'checkcopies' to ensure the linkrev adjustement is properly setup for
        each. Linkrev adjustment is important to avoid bug in rename
        detection. Moreover, having a proper '_ancestrycontext' setup ensures

    addedinm1 = m1.filesnotin(ma)
    addedinm2 = m2.filesnotin(ma)
    u1, u2 = _computenonoverlap(repo, c1, c2, addedinm1, addedinm2)

    for f in u1:
        ctx = setupctx(c1)
        checkcopies(ctx, f, m1, m2, ca, limit, diverge, copy, fullcopy)

    for f in u2:
        ctx = setupctx(c2)
        checkcopies(ctx, f, m2, m1, ca, limit, diverge, copy, fullcopy)

    renamedelete = {}
    renamedelete2 = set()
    diverge2 = set()
    for of, fl in diverge.items():

    if bothnew:
        repo.ui.debug("  unmatched files new in both:\n   %s\n"
                      % "\n   ".join(bothnew))
    bothdiverge, _copy, _fullcopy = {}, {}, {}
    for f in bothnew:
        ctx = setupctx(c1)
        checkcopies(ctx, f, m1, m2, ca, limit, bothdiverge, _copy, _fullcopy)
        ctx = setupctx(c2)
        checkcopies(ctx, f, m2, m1, ca, limit, bothdiverge, _copy, _fullcopy)
    for of, fl in bothdiverge.items():
        if len(fl) == 2 and fl[0] == fl[1]:
            copy[fl[0]] = of # not actually divergent, just matching renames

    if fullcopy and repo.ui.debugflag:

                                       "dst: '%s'\n") % (f, df))
                    break

    return copy, movewithdir, diverge, renamedelete

def checkcopies(ctx, f, m1, m2, ca, limit, diverge, copy, fullcopy):
    """
    check possible copies of f from m1 to m2

    ctx = function accepting (filename, node) that returns a filectx.
    f = the filename to check
    m1 = the source manifest
    m2 = the destination manifest
    ca = the changectx of the common ancestor
    limit = the rev number to not search beyond

        except StopIteration:
            return False

    of = None
    seen = set([f])
    for oc in ctx(f, m1[f]).ancestors():
        ocr = oc.linkrev()
        of = oc.path()
        if of in seen:
            # check limit late - grab last rename before
            if ocr < limit:

        fullcopy[f] = of # remember for dir rename detection
        if of not in m2:
            continue # no match, keep looking
        if m2[of] == ma.get(of):
            break # no merge needed, quit early
        c2 = ctx(of, m2[of])
        cr = _related(oc, c2, ca.rev())
        if cr and (of == f or of == c2.path()): # non-divergent
            copy[f] = of
            of = None
            break

26315:3c6902ed9f07

    m2 = c2.manifest()
    ma = ca.manifest()


    def setupctx(ctx):
        """return a 'getfctx' function suitable for checkcopies usage

        We have to re-setup the function building 'filectx' for each
        'checkcopies' to ensure the linkrev adjustement is properly setup for
        each. Linkrev adjustment is important to avoid bug in rename
        detection. Moreover, having a proper '_ancestrycontext' setup ensures

    addedinm1 = m1.filesnotin(ma)
    addedinm2 = m2.filesnotin(ma)
    u1, u2 = _computenonoverlap(repo, c1, c2, addedinm1, addedinm2)

    for f in u1:
        getfctx = setupctx(c1)
        checkcopies(getfctx, f, m1, m2, ca, limit, diverge, copy, fullcopy)

    for f in u2:
        getfctx = setupctx(c2)
        checkcopies(getfctx, f, m2, m1, ca, limit, diverge, copy, fullcopy)

    renamedelete = {}
    renamedelete2 = set()
    diverge2 = set()
    for of, fl in diverge.items():

    if bothnew:
        repo.ui.debug("  unmatched files new in both:\n   %s\n"
                      % "\n   ".join(bothnew))
    bothdiverge, _copy, _fullcopy = {}, {}, {}
    for f in bothnew:
        getfctx = setupctx(c1)
        checkcopies(getfctx, f, m1, m2, ca, limit, bothdiverge,
                    _copy, _fullcopy)
        getfctx = setupctx(c2)
        checkcopies(getfctx, f, m2, m1, ca, limit, bothdiverge,
                    _copy, _fullcopy)
    for of, fl in bothdiverge.items():
        if len(fl) == 2 and fl[0] == fl[1]:
            copy[fl[0]] = of # not actually divergent, just matching renames

    if fullcopy and repo.ui.debugflag:

                                       "dst: '%s'\n") % (f, df))
                    break

    return copy, movewithdir, diverge, renamedelete

def checkcopies(getfctx, f, m1, m2, ca, limit, diverge, copy, fullcopy):
    """
    check possible copies of f from m1 to m2

    getfctx = function accepting (filename, node) that returns a filectx.
    f = the filename to check
    m1 = the source manifest
    m2 = the destination manifest
    ca = the changectx of the common ancestor
    limit = the rev number to not search beyond

        except StopIteration:
            return False

    of = None
    seen = set([f])
    for oc in getfctx(f, m1[f]).ancestors():
        ocr = oc.linkrev()
        of = oc.path()
        if of in seen:
            # check limit late - grab last rename before
            if ocr < limit:

        fullcopy[f] = of # remember for dir rename detection
        if of not in m2:
            continue # no match, keep looking
        if m2[of] == ma.get(of):
            break # no merge needed, quit early
        c2 = getfctx(of, m2[of])
        cr = _related(oc, c2, ca.rev())
        if cr and (of == f or of == c2.path()): # non-divergent
            copy[f] = of
            of = None
            break