Hi,
I am happy to announce that I did setup initial midbrowser branches
based on the firefox 2.0 branch. Its not yet packaged, but you can get
the latest 'upstream' source from my people.ubuntu.com account.
For now its basically firefox, but its build with
--enable-application=midbrowser instead of
--enable-application=browser (see the mozconfig
file in 'How to build' section below).
This will allow us to do all kind of things we want in a way that will
be suitable for inclusion into mozilla tree at some point. For example,
it allows us to setup optimization options and refer to the
MOZ_MIDBROWSER AC_DEFINE in build-system/code et al.
ATM, I maintain *two* repositories: git and bzr (experimental);
I will try to keep these in sync for some time. Both are in my
people.ubuntu.com account until I find a better place to host them.
git mobile.browser.1.8 branch
==============================
# git clone http://people.ubuntu.com/~asac/git-repo/mobile.browser.1.8.git
( I will rebase this branch against
http://people.ubuntu.com/~asac/git-repo/mobile.browser.1.8.git which
will track upstream development on 1.8 branch)
bzr repo
=========
The bzr repo is currently here:
http://people.ubuntu.com/~asac/bzr-repo/
The bzr repository layout is experimental and is planned to comprise
multiple branches that allow us to maintain our feature branches for a
more or less long period. For now it just has the mobile.infrastructure
branch. Ideas on how the layout should look like when we have more
than just one feature branch are welcome.
browser1.8 - the branch that tracks upstream development
|
-- mobile.infrastructure - a feature branch that contains
infrastructure changes (currently the
only topic branch) ... other feature
branches should probably be branched
on top of this.
(The mobile.intrastructure branch is what you want for now).
How to build
=============
In order to build midbrowser, just get the branch
mobile.browser.1.8.git branch or the mobile.infrastructure branch and
add your .mozconfig file into the top-level directory. For your
convenience I provide an example file:
cd mobile.release/
wget -O .mozconfig http://people.ubuntu.com/~asac/mobile.mozconfig
and build like:
make -f client.mk build
( make -f client.mk clean
make -f client.mk distclean )
In case you miss some build-depends. Its easiest to just install current
firefox build depends, like:
sudo apt-get build-dep firefox
Patches
========
For those who just want to look at the current (infrastructure)
patches, look in: http://people.ubuntu.com/~asac/mobile-patches/. Just
ignore the 0003* patch ... as its just an autoconf update.
Performance (git vs. bzr)
=========================
Bzr still comes with a huge performance penalty, though the gap has
definitly narrowed. However we are still not where we need to be imo.
Attached two log files: git.timing and bzr.timing ... which shows the
difference of similar actions of git and bzr.
If there are questions, feel free to ask.
- Alexander
[EMAIL PROTECTED]:~/mozilla/mobile/mozilla$ time git diff
real 0m0.373s
user 0m0.004s
sys 0m0.006s
[EMAIL PROTECTED]:~/mozilla/mobile/mozilla$ vi client.mk
[EMAIL PROTECTED]:~/mozilla/mobile/mozilla$ time git commit -m "test checkin"
client.mk
Created commit 2e64bd2: test checkin
1 files changed, 1 insertions(+), 0 deletions(-)
real 0m4.781s
user 0m4.078s
sys 0m0.478s
[EMAIL PROTECTED]:~/mozilla/mobile/mozilla$ time git reset HEAD^
client.mk: needs update
real 0m2.964s
user 0m2.642s
sys 0m0.310s
[EMAIL PROTECTED]:~/mozilla/mobile/mozilla$ time git checkout -f
real 0m3.060s
user 0m2.788s
sys 0m0.237s
[EMAIL PROTECTED]:~/mozilla/mobile/browser1.8$ time bzr diff
real 0m3.035s
user 0m2.474s
sys 0m0.546s
[EMAIL PROTECTED]:~/mozilla/mobile/browser1.8$ vi client.mk
[EMAIL PROTECTED]:~/mozilla/mobile/browser1.8$ time bzr commit -m "a newline on
top"
modified client.mk
Committed revision 5.
real 0m24.375s
user 0m22.372s
sys 0m1.827s
[EMAIL PROTECTED]:~/mozilla/mobile/browser1.8$ echo damn
damn
[EMAIL PROTECTED]:~/mozilla/mobile/browser1.8$ time bzr uncommit
5 Alexander Sack 2007-07-04
a newline on top
The above revision(s) will be removed.
Are you sure [y/N]? y
real 0m11.101s
user 0m9.230s
sys 0m0.486s
[EMAIL PROTECTED]:~/mozilla/mobile/browser1.8$ time bzr revert
M client.mk
real 0m19.957s
user 0m18.802s
sys 0m1.087s
[EMAIL PROTECTED]:~/mozilla/mobile/browser1.8$
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