manifest: add manifestctx.readdelta() This adds an implementation of readdelta to the new manifestctx class and adds a couple consumers of it. This currently appears to have some duplicate code, but future patches cause this function to diverge when things like "shallow" are introduced.

merge with stable

rebase: make debug logging more consistent We emit some lines that mix revision numbers with nodeids, which makes little sense to me.

revset: fix order of nested '_(|int|hex)list' expression (BC) This fixes the order of 'x & (y + z)' where 'y' and 'z' are trivial, and the other uses of _list()-family functions. The original functions are renamed to '_ordered(|int|hex)list' to say clearly that they do not follow the subset ordering.

revset: fix order of nested 'or' expression (BC) This fixes the order of 'x & (y + z)' where 'y' and 'z' are not trivial. The follow-order 'or' operation is slower than the ordered operation if an input set is large: #0 #1 #2 #3 0) 0.002968 0.002980 0.002982 0.073042 1) 0.004513 0.004485 0.012029 0.075261 #0: 0:4000 & (0:1099 + 1000:2099 + 2000:3099) #1: 4000:0 & (0:1099 + 1000:2099 + 2000:3099) #2: 10000:0 & (0:1099 + 1000:2099 + 2000:3099) #3: file("path:hg") & (0:1099 + 1000:2099 + 2000:3099) I've tried another implementation, but which appeared to be slower than this version. ss = [getset(repo, fullreposet(repo), x) for x in xs] return subset.filter(lambda r: any(r in s for s in ss), cache=False)

revset: add 'takeorder' attribute to mark functions that need ordering flag Since most functions shouldn't need 'order' flag, it is passed only when explicitly required. This avoids large API breakage.