revset: rename 'revsnode' to 'inputrev' in ancestors We usually use 'node' for variable containing 20 bytes hash. There is nothing nodish in this variable, so we rename it to "inputrev" as it old the next entry of the iteration.

revset: make generatorset.__nonzero__ lazy The 'for r in self:' call could trigger full consumption of the generator while we only need a single value. We also fast path if a single value got already computed. See inline comment for more details. This provide massive speedup for lazy operation using boolean testing. max(::tip) e5b507efb36e) wall 0.055609 comb 0.060000 user 0.060000 sys 0.000000 (best of 100) after change) wall 0.000109 comb 0.000000 user 0.000000 sys 0.000000 (best of 19146)

tests: test that we can convert to manifestv2 with clone This just adds a test to ensure that we can convert a manifestv1 repo to a manifestv2 repo (for future commits only) by means of a local clone.

requires: move requires file writing func from localrepo to scmutil The logic to read a requires file resides in scmutil, so it's only logical that the logic to write the file should be there too. And now I've typed logic too many times it no longer looks like a word. Logically.

histedit: fix test-histedit-edit on vfat test-histedit-edit was broken because it relied on the HGEDITOR script being executable. Instead, lets just execute 'sh' and pass it the script to run. This seems to be the pattern followed in other tests.

revset: don't error out if tokens parse as existing symbols It makes perfect sense for tokens to parse as existing revset symbols (revset functions), and doesn't break anything, since parsing symbols as functions works correctly in the presence of parens. For example, if "only" is a bookmark, this used to error out, hg log -r "only(only, @)" which shouldn't, as the inner "only" is unambiguously not a function. So we just remove the symbolset function and replace its calling site with the stringset function. For the tests, we confirm that "date" and "only" are both parsed as revision names both inside revset expressions (e.g. an expression containing ::) and inside old-style revision expressions (e.g. those containing the name of the revision alone).