py3: add b'' prefixes in tests/test-help.t This takes us close to make the test passing. # skip-blame because just b'' prefixes Differential Revision: https://phab.mercurial-scm.org/D5028

py3: use sys.stdout.buffer for binary output in tests/svnxml.py Just following 6c0b1d964537ab62d76c208f5f04ab414814c94e here. Differential Revision: https://phab.mercurial-scm.org/D5027

py3: use '%s' instead of %r in hgext/convert/subversion.py Using '%r' on bytes in python 3 adds b'' prefixes to output which is bad. I don't see a reason why we want to repr() the string here, so just switched to '%s'. This fixes some output failure in one of the subversion test. Differential Revision: https://phab.mercurial-scm.org/D5026

py3: make test-contrib-perf.t work on python 3 Differential Revision: https://phab.mercurial-scm.org/D5025

py3: add 3 more passing tests to whitelist caught by buildbot Differential Revision: https://phab.mercurial-scm.org/D5024

py3: add some r'' prefixes in hgext/narrow/narrowwirepeer.py This fixes test-narrow-widen-no-ellipsis.t on Python 3. # skip-blame because just r'' prefixes Differential Revision: https://phab.mercurial-scm.org/D5023

py3: r'' prefix default values for mimetypes.guess_mime() As suggested by @yuja in D4967. Differential Revision: https://phab.mercurial-scm.org/D5020

absorb: update help text Update the help text to reflect the recent changes to absorb in D4999. The `-p` option actually only affects the `-a` option: without `-a`, the changes are printed; with `-a` the changes are only printed if `-p` is specified. Reword the help text for `-p` to reflect this. Differential Revision: https://phab.mercurial-scm.org/D5022

fsmonitor: use vfs instead of opener (issue5938) "opener" of localrepository object was dropped at Mercurial 4.3 (or a7e210167c28). "vfs" should be used instead. wlock is required to write into a file under .hg directory. For efficiency, we should change _cmpsets() from: 1. acquire wlock 2. open log file under .hg directory with write mode 3. compare between result of watchman and Mercurial's dirstate logic 4. write out error info into a file, if error is detected 5. release wlock to: 1. compare between result of watchman and Mercurial's dirstate logic 2. acquire wlock, if error is detected 3. open and write error info into a file 4. release wlock But this is another issue.

tests: configure fsmonitor.mode=paranoid always if fsmonitor is used This forces fsmonitor extension execute "paranoid" code path. Strict speaking, we should make fsmonitor-run-tests.py accept own specific options, but there is no code path, which is disabled in "paranoid" mode, at least now. Therefore, this solution seems reasonable enough.

tests: drop files from exclusion list in test-check-module-imports.t Now, these files has no style issue at checking with import-checker.py. BTW, tests/test-imports-checker.t is still excluded, because almost all code fragments in it has intentional importing style violation. Using NO_CHECK_EOF instead of EOF as heredoc limit mark can make import-checker.py ignore such fragments. But keeping these fragments checkable seems still useful: for example, test-imports-checker.t can be used to test whether import-checker.py can detect erroneous code fragment in test script as expected.

tests: use NO_CHECK_EOF for fragments used to test importing via extension test-extension.t is excluded in test-check-module-imports.t, because import-checker.py reports that some python code fragments in it does not import modules in recommended style. These code fragments are used to test importing modules relatively and absolutely via extension (e.g. issue4029, issue5208, and so on). Test specific package hierarchy becomes complicated for this purpose, and it seems reasonable to avoid checking these code fragments with import-checker.py. But on the other hand, other code fragments in test-extension.t should be checked by import-checker.py. Therefore, this patch uses NO_CHECK_EOF limit mark only for python code fragments, which are used to test importing via extension in test-extension.t. NO_CHECK_EOF limit mark tells import-checker.py that this code fragment should be ignored, via testparseutil.py.

tests: use NO_CHECK_EOF for fragments having intentional error Some test scripts are excluded in test-check-module-imports.t, because import-checker.py reports that code fragments embedded in these test scripts have syntax error. But these syntax error is intentional. This patch uses NO_CHECK_EOF instead of EOF as heredoc limit mark for such fragments, in order to make import-checker.py ignore them. NO_CHECK_EOF limit mark tells import-checker.py that this code fragment should be ignored, via testparseutil.py.

tests: fix style issue of importing order in test-lock.py test-lock.py is excluded in test-check-module-imports.t, because import-checker.py reports that some stdlibs are imported after local silenttestrunner module. I can not found out any reason why tests/silenttestrunner.py should be imported before some stdlibs from the point of functionality view.

tests: fix style issue of importing hgweb in embedded code fragments Some test scripts are excluded in test-check-module-imports.t, because import-checker.py reports that hgweb and/or hgwebdir of mercurial.hgweb are not imported in recommended style. To fix this issues, this patch make python code fragments embedded in these files import hgweb from mercurial package at first, and refer hgweb and hgwebdir via imported hgweb.

py3: encode str to bytes These fields are str on Python 2 and 3. This module doesn't import any Mercurial modules. So I just did the str -> bytes inline. Differential Revision: https://phab.mercurial-scm.org/D5010

py3: sprinkle statprof.py with utf-8 encoding Trying to chase the long tail of unicode badness in this file due to frame / code objects holding str everywhere. Differential Revision: https://phab.mercurial-scm.org/D5016

py3: flush stdout This avoids buffering due to mixed print() and sys.stdout.write() by profiling code. And with this, test-profile.t passes on Python 3 \o/. Honestly, I'd be shocked if there weren't more Python 3 encoding issues lingering in the profiling code. That code isn't super high quality and doesn't seem to have thorough test coverage. Differential Revision: https://phab.mercurial-scm.org/D5018

py3: use raw strings in statprof.py This allows main() and argument parsing to work. Differential Revision: https://phab.mercurial-scm.org/D5017

py3: switch from print(..., file=) to write() Because Python 3's print() doesn't like bytes. Differential Revision: https://phab.mercurial-scm.org/D5015

py3: use %d in a few places Differential Revision: https://phab.mercurial-scm.org/D5014

py3: use raw strings for stack names These are used for simple compares. We don't need to normalize to bytes. As part of this, I expanded a set literal so entries are 1 per line. Differential Revision: https://phab.mercurial-scm.org/D5013

py3: use sysbytes for converting code attributes Differential Revision: https://phab.mercurial-scm.org/D5012

py3: use write() instead of print() Because print() expects str and we want to write bytes. There should be no functional changes as part of this. Differential Revision: https://phab.mercurial-scm.org/D5011