py3: make sure __repr__ returns str No test fails but I found it while debugging test-commit-interactive-curses.t failure. # skip-blame because just r'' prefix Differential Revision: https://phab.mercurial-scm.org/D5878

py3: use bytes.startswith() instead of comparing with bytes[0] This is because bytes[0] will return the ascii value and comparison will fail. This makes test-commit-interactive-curses.t pass on Python 3. Differential Revision: https://phab.mercurial-scm.org/D5879

match: remove unused "exact" argument (API) It seems that all callers use match.exact() instead of match.match(exact=True). Differential Revision: https://phab.mercurial-scm.org/D5919

tests: replace match.match(exact=True) by match.exact() Differential Revision: https://phab.mercurial-scm.org/D5918

patch: accept second matcher that applies only to copy sources (API) See previous patch for motivation. Differential Revision: https://phab.mercurial-scm.org/D5893

patch: let caller pass in root-filtering matcher (API) The --root option to `hg diff` does two things: * Shows paths relative to the given root * Filters paths by the given root, including copy sources The root argument is passed through down to patch.diff(). I feel like we can make patch.diff() more generic by not passing down the root argument, but instead pass: * A function for taking a repo-relative path and printing it. I want to reuse this for showing cwd-relative paths later. This is the actual motivation for this patch. * A matcher that's already been filtered by the root argument * A second matcher that filters the copy sources This is one step towards that. Differential Revision: https://phab.mercurial-scm.org/D5892

patch: pass in context objects into diffhunks() (API) It's a pretty low-level function and having the contexts in patch.diff() makes future patches easier. Differential Revision: https://phab.mercurial-scm.org/D5891