py3: stringify IOError/OSError without loosing local character Follows up fa4d333cac58. An environment error may contain non-ascii characters on Windows, which should be encoded to a platform-native string.

dirstate: drop explicit files that shouldn't match (BC) (issue4679) Before, wctx.walk() could include files excluded by -X pattern, which disagrees with wctx.matches() and ctx.walk()/matches() behavior. This patch fixes the problem by testing stat results against the matcher if the matcher may contain false paths. I have no idea if the fix should be made before the workaround for case- insensitive filesystems, but that shouldn't matter since match.anypats() means 'not match.isexact()'. This patch also makes narrow and sparse extensions to not exclude explicit paths on walk() because they appear to depend on the buggy behavior. More detailed analysis about this issue by Martin von Zweigbergk: "I think it's just an unintended consequence of how the dirstate walk works, but I'm not sure. The exception for explicit files also bothered me when I was working on the matcher code a year or so ago. I actually added the exception to the matcher code because I thought it was always working like that (not just for dirstate) in a83a7d27911e (match: handle excludes using new differencematcher, 2017-05-16). It was only recently that Yuya realized that it used to be inconsistent and that I probably made it consistently bad because I didn't realize it was inconsistent to start with, see 821d8a5ab4ff (match: do not weirdly include explicit files excluded by -X option, 2018-01-16)." .. bc:: Working-directory commands now respect ``-X PATTERN`` no matter if PATTERN matches explicitly-specified FILEs. For example, ``hg add foo -X foo`` no longer add the file ``foo``.

log: add TODO comments about --line-range processing

log: factor out function to feed revisions to displayer

graphlog: unblock --line-range option It should work now.

graphlog: deduplicate preprocessing of log command

hgweb: show users recorded in obsolescence markers It's useful to see who obsoleted a commit, because it's not always done by its author (hg-committed is a good example, because people rebase stacks of commits made by various people). Usernames are obfuscated, but look correct (e.g. "test" is "test").