#!/bin/sh -e

# Build autoconf 2.13 for Firefox's sole use.
# See: https://bugzilla.mozilla.org/show_bug.cgi?id=104642
(
    cd autoconf2.13
    ./configure --prefix="$PWD/../autoconf" --program-suffix=-2.13
    make
    make install
)
export PATH="$PWD/autoconf/bin:$PATH"

# Fix linker errors at runtime.
export LDFLAGS="$LDFLAGS -Wl,-rpath=/usr/lib/firefox"

unset  MOZ_TELEMETRY_REPORTING
export MOZ_NOSPAM=1

cd firefox

# Fix OOM errors.
cores=$(nproc)
printf '%s\n' "mk_add_options MOZ_MAKE_FLAGS=\"-j$cores -l$cores\"" >> mozconfig

for patch in *.patch; do
    patch -p1 < "$patch"
done

./mach build
DESTDIR="$1" ./mach install

rm -rf "$1/usr/include"
rm -rf "$1/usr/lib/firefox-devel"
rm -rf "$1/usr/share/idl"
rm -rf "$1/usr/lib/firefox/gtk2"

# Disable nasty features by default.
# This extends the Ghacks user.js file.
cat >> user.js <<EOF
// Disable DNS over HTTPS.
user_pref("network.trr.mode", 5);

// Disable location aware browsing.
user_pref("geo.enabled", false);

// Disable auto extension updates/installs.
user_pref("extensions.update.enabled", false);
user_pref("extensions.update.autoUpdateDefault", false);

// Disable Screenshots extension.
user_pref("extensions.screenshots.disabled", true);
user_pref("extensions.screenshots.upload-disabled", true);
EOF

# Install Ghacks user.js.
mkdir -p "$1/usr/lib/firefox/browser/defaults/preferences/"
cp -f ./user.js "$1/usr/lib/firefox/browser/defaults/preferences/vendor.js"