[[!meta title="How to update pkgsrc/www/firefox"]]

This article shows you how to update pkgsrc/www/firefox package to latest
release.
You can use Mozilla's Mercurial (hg) repositories to track upstream changes.

You should have pkgsrc/meta-pkgs/pkg_developer package
and pkgsrc/devel/py-mercurial package.

# Clone hg tree
See <http://mozilla-version-control-tools.readthedocs.io/en/latest/hgmozilla/unifiedrepo.html>

You should follow "Working with the Unified Repo" section.
In short, run:

	$ hg clone https://hg.mozilla.org/mozilla-unified

# Update trees to latest

	$ hg update


# Checkout last release source, and create your branch

Find latest release.

	$ hg tags|grep 50_
	(snip)
	FIREFOX_50_1_0_RELEASE         359965:8612c3320053
	(snip)

Checkout the branch.

	$ hg checkout FIREFOX_50_1_0_RELEASE

Create named branch for applying pkgsrc patches

	$ hg branch pkgsrc_firefox-50.1.0
	$ hg commit -m "Create pkgsrc_firefox-50.1.0 branch for applying pkgsrc patches"

Add .*\.orig$ to .hgignore, and commit this change

	$ hg commit -m "Ignore .orig files" .hgignore


# Apply pkgsrc patches

	$ pushd /usr/pkgsrc/www/firefox
	$ mkpatches -c
	$ popd
	$ cat /usr/pkgsrc/www/firefox/patches/patch-*|patch -p0
	$ hg add ...(necessary files)
	$ hg commit -m "Apply pkgsrc patches for firefox-50.1.0nb3"


# Checkout latest beta source, and create your branch

Find latest branch.

	$ hg tags | grep 51_
	(snip)
	FIREFOX_51_0b14_RELEASE        364880:09142d07fd73
	(snip)

Checkout the branch.

	$ hg checkout FIREFOX_51_0b14_RELEASE

Create named branch for working.

	$ hg branch ryoon_firefox-51.0
	$ hg commit -m "Create ryoon_firefox-51.0 branch for merging pkgsrc patches"

Add .*\.orig$ to .hgignore, and commit this change

	$ hg commit -m "Ignore .orig files" .hgignore

# Merge your patches

	$ hg merge pkgsrc_firefox-50.1.0
	$ hg resolve -l
	$ vi file/marked/as/U
	$ hg resolve --mark file/marked/as/U
	(loop)
	$ hg commit -m "Merge pkgsrc_firefox-50.1.0 branch to 51.0"


# Create patch file for patch -p0

	$ hg diff -r (revision of first commit in ryoon_firefox-51.0) | \
	sed -e 's!^--- a/!--- !' -e 's!^+++ b/!+++ !' > ~/firefox-51.0.diff
	$ vi ~/firefox-51.0.diff
	(Remove patch to .hgignore)
	(Remove patch to .hgtags)

# Create patches/patch-* for pkgsrc/www/firefox

	$ cd /usr/pkgsrc/www/firefox
	$ vi Makefile
	(Update version)
	(Remove PKGREVISION)
	$ make mdi
	$ make extract
	$ pushd ${WRKOBJDIR}/www/firefox/work/${DISTNAME}
	$ patch -p0 < ~/firefox-51.0.diff
	$ popd
	$ mkpatches
	$ patchdiff
	$ make mps

# Test your patches

	$ make clean && make package