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.