>
> I also had to remove my ~/.mozbuild, it was full of old hg extensions that
> confused the new hg, and ./mach bootstrap refused to overwrite them. Maybe
> the wiki should mention that?
This is a compatibility issue that's specific to MozillaBuild 4.0, and most
version-specific information is in the release notes (it could be hard to
discover as an unconventional MB 4.0-specific section in the wiki).
Accordingly, in the "Upgrade Notes" of the announcement email, the third
bullet point describes this hg extension issue and how to work around it
("./mach vcs-setup").
I wish that this could've been caught in a more automated fashion, but
unfortunately it could only be solved by documenting it - which makes it
possible to miss.
c:\mozilla-build\python3\Scripts\hg started with
> "#!c:\mozillabuild-stage\mozilla-build\python3\python.exe", which made my
> hg-using scripts fail. Fixed by removing the spurious "mozillabuild-stage\".
>
Thanks for noting this, I've documented the workaround over here
<https://bugzilla.mozilla.org/show_bug.cgi?id=1760873#c3>.
On Wed, Mar 23, 2022 at 10:43 PM Gerald Squelart <[email protected]> wrote:
> Thank you for the update.
>
> A couple of pain points for me:
> - I also had to remove my ~/.mozbuild, it was full of old hg extensions
> that confused the new hg, and ./mach bootstrap refused to overwrite them.
> Maybe the wiki should mention that?
> - c:\mozilla-build\python3\Scripts\hg started with
> "#!c:\mozillabuild-stage\mozilla-build\python3\python.exe", which made my
> hg-using scripts fail. Fixed by removing the spurious "mozillabuild-stage\".
>
> Cheers,
> Gerald
>
> On Tuesday, March 22, 2022 at 3:02:23 AM UTC+11 [email protected] wrote:
>
>> MozillaBuild 4.0
>> <https://ftp.mozilla.org/pub/mozilla/libraries/win32/MozillaBuildSetup-4.0.exe>
>> is the "Snow Leopard" of MozillaBuild releases - *almost* no new
>> features, but significant stability, usability and security improvements!
>> (Perhaps it's bad taste to use a macOS metaphor for Windows-specific
>> software 😉)
>>
>> Upgrade instructions are here
>> <https://wiki.mozilla.org/MozillaBuild#To_Upgrade_From_A_Previous_Version>,
>> the full changelog is here
>> <https://hg.mozilla.org/mozilla-build/pushloghtml?fromchange=MOZILLABUILD_3_3_4_RELEASE&tochange=MOZILLABUILD_4_0_0_RELEASE>,
>> and you can download MozillaBuild 4.0 from here.
>>
>> *Upgrade notes*
>>
>> - *Developers running Mach outside of MozillaBuild
>>
>> <https://firefox-source-docs.mozilla.org/mach/windows-usage-outside-mozillabuild.html>
>> should still install this update, as the Firefox build uses tools from
>> your
>> local MozillaBuild installation.*
>> - As always, do a `./mach clobber` after changing your MozillaBuild
>> version.
>> - The new version of Mercurial has compatibility issues with `evolve`
>> ("unhashable type: 'set'"), which can be fixed by running `./mach
>> vcs-setup`. <https://bugzilla.mozilla.org/show_bug.cgi?id=1758148>
>>
>>
>> *Highlights*
>>
>> - Ported to MSYS2, significantly updating most tools/libraries.
>> <https://bugzilla.mozilla.org/show_bug.cgi?id=1725895>
>> - Some tools are now a *whole decade* more modern! 🎉
>> - This includes the `cygpath`
>> <https://cygwin.com/cygwin-ug-net/cygpath.html> utility for
>> converting between Windows and Unix-y paths. See additional
>> instructions on
>> the MozillaBuild wiki
>> <https://wiki.mozilla.org/MozillaBuild#Command_Prompt_Tips_and_Caveats>
>> .
>> - Windows Terminal is supported out-of-the-box.
>> <https://wiki.mozilla.org/MozillaBuild#Windows_Terminal>
>> - Use Windows' OpenSSH by default.
>> <https://bugzilla.mozilla.org/show_bug.cgi?id=1261899>
>> - Mercurial has been updated <http:///> from 5.9.3 to 6.1.
>> <https://www.mercurial-scm.org/wiki/Release6.1>
>> - Python 3 upgraded to 3.9.10, Python 2 removed.
>> <https://bugzilla.mozilla.org/show_bug.cgi?id=1743185>
>> - `hg` now uses interactive "curses" mode by default.
>> <https://phabricator.services.mozilla.com/D134551>
>>
>> [image: hg-histedit.png]
>>
>> [image: hg-split.png]
>>
>>
>>
>> *Fixed*
>>
>> - `python3 -m venv` no longer fails with "WinError 2".
>> <https://bugzilla.mozilla.org/show_bug.cgi?id=1697833>
>> - Running `./mach try fuzzy` no longer makes it impossible to select
>> or copy text. <https://bugzilla.mozilla.org/show_bug.cgi?id=1751526>
>>
>>
>> *Breaking changes*
>>
>> - Mercurial now uses "utf-8" by default.
>> <https://bugzilla.mozilla.org/show_bug.cgi?id=1419922>
>> - Due to the MSYS -> MSYS2 migration, a lot of underlying tools and
>> libraries have changed.
>> <https://bugzilla.mozilla.org/show_bug.cgi?id=1725895>
>> - Automatically-bootstrapped tools have been removed (NSIS
>> <https://phabricator.services.mozilla.com/D130808>, mozmake, yasm
>> <https://phabricator.services.mozilla.com/D134820>).
>> - Python's `virtualenv` package is no longer installed by default.
>> <https://phabricator.services.mozilla.com/D132276> (use `python3 -m
>> venv` instead).
>> - Python 2 is no longer available, and `python` now refers to Python
>> 3. <https://bugzilla.mozilla.org/show_bug.cgi?id=1743185>
>>
>>
>> *Breaking user changes*
>>
>> - `nano` is now the default editor instead of `emacs`. Set
>> "ui.editor" to "emacs" in ~/mercurial.ini or `export EDITOR="emacs.exe"`
>> in
>> your `.bash_profile` to use emacs again.
>> <https://phabricator.services.mozilla.com/D134575>
>> - Note that we've configured `hg`'s `nano` integration to
>> automatically wrap lines at 80 characters to improve commit-message
>> ergonomics.
>> - `hg` merge conflicts are now solved in text form by default. To use
>> kdiff3 again, set `ui.diff` to `"kdiff3"` in ~/mercurial.ini.
>> <https://bugzilla.mozilla.org/show_bug.cgi?id=1748531>
>>
>>
>> 💪😎👉 Happy Windows hacking in a far more ergonomic and modern
>> environment 💪😎👉
>>
>> --
>> Mitchell Hentges
>> Engineering Workflow
>> Mozilla
>>
>
--
Mitchell Hentges
Engineering Workflow
Mozilla
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