comparison mercurial/merge.py @ 21389:e741972017d9

merge: change priority / ordering of merge actions

The ordering of actions matters. Normal file system semantics is that files
have to be removed before a directory with the same name can be created.

Before the first ordering key was to have 'r' and 'f' actions come first,
secondary key was the filename.

Because of future refactorings we want to consistently have all action types
(with a sensible priority) as separate first keys. Grouped by action type, we
sort by filename.

Not processing in strict filename order could give worse performance,
especially on spinning disks. That is however primarily an issue in the cases
where "all" actions are of the same kind and will be grouped together anyway.

21388:9a1e3d705c2c

        else:
            _checkcollision(repo, m1, actions)

    return actions

def actionkey(a):
    return a[1] in "rf" and -1 or 0, a

def getremove(repo, mctx, overwrite, args):
    """apply usually-non-interactive updates to the working directory

    mctx is the context to be merged into the working copy

def recordupdates(repo, actions, branchmerge):
    "record merge actions to the dirstate"

    for a in actions:
        f, m, args, msg = a
        if m == "r": # remove
            if branchmerge:
                repo.dirstate.remove(f)
            else:
                repo.dirstate.drop(f)
        elif m == "a": # re-add
            if not branchmerge:
                repo.dirstate.add(f)
        elif m == "f": # forget
            repo.dirstate.drop(f)
        elif m == "e": # exec change
            repo.dirstate.normallookup(f)
        elif m == "k": # keep
            pass
        elif m == "g": # get

21389:e741972017d9

        else:
            _checkcollision(repo, m1, actions)

    return actions

actionpriority = dict((m, p) for p, m in enumerate(
    ['r', 'f', 'g', 'a', 'k', 'm', 'dm', 'dg', 'dr', 'cd', 'dc', 'rd', 'e']))

def actionkey(a):
    return actionpriority[a[1]], a

def getremove(repo, mctx, overwrite, args):
    """apply usually-non-interactive updates to the working directory

    mctx is the context to be merged into the working copy

def recordupdates(repo, actions, branchmerge):
    "record merge actions to the dirstate"

    for a in actions:
        f, m, args, msg = a
        if m == "r": # remove (must come first)
            if branchmerge:
                repo.dirstate.remove(f)
            else:
                repo.dirstate.drop(f)
        elif m == "f": # forget (must come first)
            repo.dirstate.drop(f)
        elif m == "a": # re-add
            if not branchmerge:
                repo.dirstate.add(f)
        elif m == "e": # exec change
            repo.dirstate.normallookup(f)
        elif m == "k": # keep
            pass
        elif m == "g": # get