comparison mercurial/merge.py @ 45817:58e7ee23ddbd

copies: handle more cases where a file got replaced by a copy

This patch fixes the changeset-centric version in a pretty
straight-forward way. It fixes it to automatically resolve the
conflict, which is better than resulting in a modify/delete conflict
as it was before b4057d001760 (merge: when rename was made on both
sides, use ancestor as merge base, 2020-01-22).

I'll leave it for later to test and explicitly handle cases where
files have been renamed to the same target on different sides of the
merge.

Differential Revision: https://phab.mercurial-scm.org/D8653

45816:4b79e92a5ef8

                    msg = b'both renamed from %s' % fa
                else:
                    args = (f, f, None, False, pa.node())
                    msg = b'both created'
                mresult.addfile(f, mergestatemod.ACTION_MERGE, args, msg)
            else:
                a = ma[f]
                fla = ma.flags(f)
                nol = b'l' not in fl1 + fl2 + fla
                if n2 == a and fl2 == fla:

45817:58e7ee23ddbd

                    msg = b'both renamed from %s' % fa
                else:
                    args = (f, f, None, False, pa.node())
                    msg = b'both created'
                mresult.addfile(f, mergestatemod.ACTION_MERGE, args, msg)
            elif f in branch_copies1.copy:
                fa = branch_copies1.copy[f]
                mresult.addfile(
                    f,
                    mergestatemod.ACTION_MERGE,
                    (f, fa, fa, False, pa.node()),
                    b'local replaced from %s' % fa,
                )
            elif f in branch_copies2.copy:
                fa = branch_copies2.copy[f]
                mresult.addfile(
                    f,
                    mergestatemod.ACTION_MERGE,
                    (fa, f, fa, False, pa.node()),
                    b'other replaced from %s' % fa,
                )
            else:
                a = ma[f]
                fla = ma.flags(f)
                nol = b'l' not in fl1 + fl2 + fla
                if n2 == a and fl2 == fla: