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# Maintainer: Felix Kauselmann <licorn at gmail dot com>
pkgname=libpdfium-nojs
pkgver=3440.r7.a1c1c63d34
pkgrel=2
pkgdesc="Open-source PDF rendering engine."
arch=('x86_64')
url="https://pdfium.googlesource.com/pdfium/"
license=('BSD')
depends=('freetype2' 'lcms2' 'libjpeg' 'openjpeg2')
conflicts=('libpdfium-bin')
provides=('libpdfium')
makedepends=('git' 'python2' 'gn' 'ninja')
source=("git+https://pdfium.googlesource.com/pdfium"
"git+https://chromium.googlesource.com/chromium/src/build.git"
"git+https://chromium.googlesource.com/chromium/buildtools.git"
"libpdfium.pc"
"openjpeg.patch"
)
md5sums=('SKIP'
'SKIP'
'SKIP'
'7fbbe2baf9a1fed80ad74278e901fa0e'
'18cb7ae314a40fec21949a5f87bb80d3')
pkgver() {
cd $srcdir/pdfium
# Version = branch name/number + number of commits since branch creation
# + short head
printf "%s.r%s.%s" $(git rev-parse --abbrev-ref HEAD | cut -d '/' -f2)\
$(git rev-list --count master..) $(git rev-parse --short HEAD)
}
prepare() {
cd "$srcdir/pdfium"
ln -sf $srcdir/build build
ln -sf $srcdir/buildtools buildtools
# Pdfium is developed alongside Chromium and does not provide releases
# Upstream recommends using Chromium's dev channels instead
# Extract pdfium branch name used in stable channel from omahaproxy and do
# a checkout
git checkout "chromium/$(curl https://omahaproxy.appspot.com/linux?channel=stable | cut -d'.' -f 3)"
# git checkout "chromium/$(curl https://omahaproxy.appspot.com/linux?channel=beta | cut -d'.' -f 3)"
# git checkout "chromium/$(curl https://omahaproxy.appspot.com/linux?channel=dev | cut -d'.' -f 3)"
# Extract build repo revision needed from DEPS file and do a checkout
cd "$srcdir/pdfium/build"
git checkout $(awk '/build_revision/ {print substr($2,2,40)}' $srcdir/pdfium/DEPS) -q
# Extract buildtools repo revision needed from DEPS file and do a checkout
cd "$srcdir/pdfium/buildtools"
git checkout $(awk '/buildtools_revision/ {print substr($2,2,40)}' $srcdir/pdfium/DEPS) -q
# Use system provided icu library (unbundling)
mkdir -p "$srcdir/pdfium/third_party/icu"
ln -sf "$srcdir/build/linux/unbundle/icu.gn" "$srcdir/pdfium/third_party/icu/BUILD.gn"
# Download and decode shim header script needed to unbundle icu (gittiles is weird)
mkdir -p "$srcdir/pdfium/tools/generate_shim_headers/"
echo "Downloading generate_shim_headers script from Chromium."
curl https://chromium.googlesource.com/chromium/src/+/master/tools/generate_shim_headers/generate_shim_headers.py?format=TEXT \
| base64 --decode > "$srcdir/pdfium/tools/generate_shim_headers/generate_shim_headers.py"
echo "Done."
# Unbundle openjpeg
cd "$srcdir"
patch -p2 < "$srcdir/openjpeg.patch"
# Patch BUILD.gn to build a shared library
cd "$srcdir/pdfium"
sed -i 's/jumbo_static_library("pdfium")/shared_library("pdfium")/g' BUILD.gn
# 'source_set' builds faster and is more reliable for shared libraries
sed -i 's/static_library/source_set/g' BUILD.gn
sed -i 's/static_library/source_set/g' third_party/BUILD.gn
# Patch pdfium headers to enable symbol export
sed -i 's/\#define FPDF_EXPORT/\#define FPDF_EXPORT __attribute__ ((visibility ("default")))/g'\
public/fpdfview.h
sed -i '/"PNG_PREFIX",/a "FPDFSDK_EXPORTS",' BUILD.gn
}
build() {
cd "$srcdir/pdfium"
local _flags=(
'is_clang=false'
'use_sysroot=false'
'is_debug=false'
'symbol_level=0'
'is_component_build=false'
'pdf_enable_v8=false'
'pdf_enable_xfa=false'
'treat_warnings_as_errors=false'
'use_system_libjpeg=true'
'use_system_zlib=true'
'pdf_bundle_freetype=false'
'use_system_freetype=true'
'use_system_lcms2=true'
'use_system_libpng=true'
'use_custom_libcxx=false'
'use_gio=false'
)
gn gen out/Release --script-executable=/usr/bin/python2 --args="${_flags[*]}"
ninja -C out/Release pdfium
# set pdfium version in pc file
sed "s/@VERSION@/${pkgver}/g" -i "${srcdir}/libpdfium.pc"
}
package() {
cd "$srcdir/pdfium"
install -D -m644 LICENSE "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
install -D public/*.h --target-directory="${pkgdir}/usr/include/pdfium"
install -D public/cpp/* --target-directory="${pkgdir}/usr/include/pdfium/cpp"
install -D docs/* --target-directory="${pkgdir}/usr/share/doc/pdfium"
install -Dm755 out/Release/libpdfium.so --target-directory="${pkgdir}/usr/lib"
install -Dm644 ${srcdir}/libpdfium.pc --target-directory=${pkgdir}/usr/lib/pkgconfig
}
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