py3: add b'' prefixes in tests/test-extension.t We are now close to getting this test pass on Python 3. # skip-blame because just b'' prefixes. Differential Revision: https://phab.mercurial-scm.org/D2478

py3: convert os.devnull to bytes using pycompat.bytestr os.devnull returns str on Python 3. Differential Revision: https://phab.mercurial-scm.org/D2477

py3: fix more keyword arguments handling Differential Revision: https://phab.mercurial-scm.org/D2476

py3: make sure regexes are bytes # skip-blame because we are adding just b'' prefixes Differential Revision: https://phab.mercurial-scm.org/D2475

py3: use pycompat.strurl to convert url to str Differential Revision: https://phab.mercurial-scm.org/D2474

bookmarks: write bookmarks file deterministically Bookmarks are internally stored as an unsorted dictionary. Let's at least write out the bookmarks file in a deterministic order so it is easier to test, diff, etc. Differential Revision: https://phab.mercurial-scm.org/D2469

phases: write phaseroots deterministically self.phaseroots is a list of sets of binary nodes. Let's sort the nodes before writing so the phaseroots file is written out deterministically. Differential Revision: https://phab.mercurial-scm.org/D2468

internals: document bundle2 format It seems like a good idea to have thorough documentation of the bundle2 data format, including the format of each part and the capabilities. The added documentation is far from complete. For example, we don't fully capture the semantics of each capability and part. But a start is better than nothing, which was pretty much where we were before. Differential Revision: https://phab.mercurial-scm.org/D2298

py3: convert bytes to str using encoding.strfromlocal using encoding.strfromlocal because sender is provided from user config or argument. Differential Revision: https://phab.mercurial-scm.org/D2460

py3: use encoding.strtolocal() to convert str to bytes Differential Revision: https://phab.mercurial-scm.org/D2459

py3: use email.utils module instead of email.Utils On py2: >>> import email >>> import email.utils as eutil >>> email.Utils.parseaddr is eutil.parseaddr True >>> email.Utils.formatdate is eutil.formatdate True email.Utils is not present on Python 3. Differential Revision: https://phab.mercurial-scm.org/D2453

py3: slice over bytes or use .startswith() to prevent getting ascii values Differential Revision: https://phab.mercurial-scm.org/D2457

py3: use '%d' for integers instead of '%s' Differential Revision: https://phab.mercurial-scm.org/D2455

templatekw: add 'requires' flag to switch to exception-safe interface The current templatekw interface, f(repo, ctx, templ, **args), is horrible because it's quite easy to encounter TypeError, ValueError, etc. It's also bad for Python 3 porting due to the **kwargs issue. This patch introduces a flag to switch to new f(context, mapping) API seen in templater functions. The requirement spec isn't verified (yet) because context.resource() can gracefully raise a ResourceUnavailable exception, but it's planned to be used as a filter in the help, such as "Revision Keywords" (if 'ctx' in requires), "File Keywords" (if 'fctx' in requires), etc. showauthor() is ported to the new API as an example. 20 more follows.