From 5ca0cf7b816f8598da6ef9ec907371f1fd613e89 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Batuhan=20Ba=C5=9Ferdem?= <baserdem.batuhan@gmail.com>
Date: Mon, 21 Sep 2020 12:15:55 -0400
Subject: [PATCH] PKGBUILD updated for 2020-a

---
 PKGBUILD      | 399 +++++++++++++++++++++++++++++++-------------------
 README.md     |  69 +++++++++
 matlab.script |   9 ++
 3 files changed, 325 insertions(+), 152 deletions(-)
 create mode 100644 README.md
 create mode 100644 matlab.script

diff --git a/PKGBUILD b/PKGBUILD
index f6826a9..0d779b6 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,165 +1,260 @@
-# Maintainer: Grey Christoforo <first name at last name dot net>
-
-## This PKGBUILD creates an Arch Linux package for the proprietary MATLAB application.
-## In order to build the package, the user must supply:
-## 1) a plain text file installation key as file `matlab.fik`
-## and
-## 2) the software tarball as `matlab.tar` from MATLAB ISO image or as downloaded by the installer
-## A typical matlab tarball structure looks like this:
-#matlab.tar
-#├── activate.ini*
-#├── archives/
-#│   ├── common/
-#│   └── glnxa64/
-#│       ├── matlab/
-#│       ├── matlab_code_analyzer/
-#│       ├── matlabconnector/
-#│       ├── matlabdata/
-#│       ├── matlab_desktop_glnxa64_1535004605.enc*
-#│       ├── matlab_desktop_glnxa64_1535004605.xml*
-#│       ├── ... other toolbox/product files & folders go here 
-#├── bin/
-#├── help/
-#├── install*
-#├── installer_input.txt*
-#├── install_guide.pdf*
-#├── java/
-#├── license_agreement.txt*
-#├── patents.txt*
-#├── readme.txt*
-#├── sys/
-#├── trademarks.txt*
-#├── ui/
-#└── VersionInfo.xml*
-
-## Maybe you'd create this archive like this:
-## 1) download the matlab installer form themathworks, let's imagine that file is ~/Downloads/matlab_R2019b_glnxa64.zip
-## 2) extract it: unzip ~/Downloads/matlab_R2019b_glnxa64.zip -d ~/matlab
-## 3) run the installer almost completely through manually: ~/matlab/install -downloadFolder ${HOME}/matlab/dl -destinationFolder ${HOME}/matlab/deleteme
-##    you must enter all your proper license info here, the purpose of this is to get the toolbox files you'll need for the offline install later
-##    when you see that the installer has finished downloading everything, press the Cancel button in the gui and end the installer early
-##    you don't really want the installer to extract/decrypt the files it has downloaded
-## 4) delete anything that might have started to be installed in the above step: rm -rf ~/matlab/deleteme
-## 5) now you can create the tarball you'll need here: tar -cvf matlab.tar -C ~/matlab/ .
-
-## You can get your file installation key (that you must manually put into matlab.fik) from https://mathworks.com/licensecenter
-## Then maybe you could make the matlab.fik file you need for this package like this:
-## echo "xxxxx-xxxxx-xxxxx-xxxxx-..." > matlab.fik
-
-## This PKGBUILD no longer attempts to activate the product.
-## The user will be prompted to undertake their activation method of choice when the GUI is first run.
-## Activation could be automated by running /opt/matlab/bin/activate_matlab.sh after this package is installed.
-## Activation could be further automated in matlab.install (a file that doesn't exist at this time)
-
-## This package will conflict with /usr/bin/mex from texlive-bin
-## You could fix that by installing it with the pacman option --overwrite /usr/bin/mex
-## /ust/bin/mex from texlive-bin is just a symlink
-
-# partial install
-_partialinstall=false
+# Maintainer: Batuhan Baserdem <lastname dot firstname at gmail>
+# Matlab packaging for archlinux
 
+name=MATLAB
+version='2020a'
+instdir="/opt/tmw/${name}-${version}"
 pkgname=matlab
-_install_dir="/opt/${pkgname}"
-# as of R2019b Update 4, MATLAB's version number is:
-pkgver=9.7.0.1296695
+pkgver=9.8.0.1323502
 pkgrel=1
 pkgdesc='A high-level language for numerical computation and visualization'
 arch=('x86_64')
 url='http://www.mathworks.com'
 license=(custom)
-makedepends=('gendesk')
-depends=('gconf'
-         'glu'
-         'gstreamer0.10-base'
-         'gtk2'
-         'libunwind'
-         'libxp'
-         'libxpm'
-         'libxtst'
-         'nss'
-         'portaudio'
-         'python'
-         'qt5-svg'
-         'qt5-webkit'
-         'qt5-websockets'
-         'qt5-x11extras'
-         'xerces-c')
-optdepends=('gcc6: For MEX support')
-
-source=("local:///matlab.tar"
-	"local:///matlab.fik")
-md5sums=("SKIP" "SKIP")
-#PKGEXT='.pkg.tar'
-
-OPTIONS=(!strip staticlibs)
+makedepends=('gendesk' 'python' 'findutils' 'libselinux')
+# For 2020a; from https://hub.docker.com/r/mathworks/matlab-deps/dockerfile
+# Some of the dependencies are probably not needed; if in case contact the maintainer
+depends=(
+  'ca-certificates'
+  'lsb-release'
+  'alsa-lib'
+  'atk'
+  'libcap'
+  'libcups'
+  'libdbus'
+  'fontconfig'
+  'libgcrypt'
+  'gdk-pixbuf2'
+  'gst-plugins-base'
+  'gstreamer'
+  'gtk2'
+  'krb5'
+  'nspr'
+  'nss'
+  'pam'
+  'pango'
+  'cairo'
+  'libselinux'
+  'libsm'
+  'libsndfile'
+  'libx11'
+  'libxcb'
+  'libxcomposite'
+  'libxcursor'
+  'libxdamage'
+  'libxext'
+  'libxfixes'
+  'libxft'
+  'libxi'
+  'libxmu'
+  'libxrandr'
+  'libxrender'
+  'libxslt'
+  'libxss'
+  'libxt'
+  'libxtst'
+  'libxxf86vm'
+  'procps-ng'
+  'xorg-server-xvfb'
+  'x11vnc'
+  'sudo'
+  'zlib')
+# These I got from arch before and afraid to play around
+depends+=(
+  'gcc6'
+  'gconf'
+  'glu'
+  'gstreamer0.10-base'
+  'libunwind'
+  'libxp'
+  'libxpm'
+  'portaudio'
+  'qt5-svg'
+  'qt5-webkit'
+  'qt5-websockets'
+  'qt5-x11extras'
+  'xerces-c')
+provides=('matlab-licenses' 'matlab-engine-for-python' 'matlab-bin')
+source=("matlab.tar.gz"
+  "matlab.fik"
+  "matlab.lic"
+  "matlab.script")
+md5sums=(SKIP SKIP SKIP SKIP)
+
+# Limit products to lower size, set this to true to do a partial install
+partialinstall=false
+# Example list of products for a partial install; check README.md for details
+products=(
+  "MATLAB"
+  #---MATLAB Product Family---#
+  "Curve_Fitting_Toolbox"           # Math and Optimization
+  "Database_Toolbox"              # Database Access and Reporting
+  "Deep_Learning_Toolbox"
+  "Global_Optimization_Toolbox"
+  "GPU_Coder"
+  "MATLAB_Coder"                # Code Generation
+  "MATLAB_Compiler"               # Application Deployement
+  "MATLAB_Compiler_SDK"
+  "Optimization_Toolbox"
+  "Parallel_Computing_Toolbox"        # Parallel computing
+  "Partial_Differential_Equation_Toolbox"
+  "Reinforcement_Learning_Toolbox"
+  "Statistics_and_Machine_Learning_Toolbox"   # AI, Data Science, Statistics
+  "Symbolic_Math_Toolbox"
+  "Text_Analytics_Toolbox"
+  #---Application Products---#
+  "Audio_Toolbox"
+  "Bioinformatics_Toolbox"          # Computational Biology
+  "Computer_Vision_Toolbox"
+  "Image_Processing_Toolbox"          # Image Processing and Computer Vision
+  "Signal_Processing_Toolbox"         # Signal Processing
+  "Wavelet_Toolbox"
+)
 
 prepare() {
-	msg2 'Generating .desktop launcher file'
-	gendesk -f -n --pkgname "${pkgname}" \
-		--pkgdesc "${pkgdesc}" \
-		--categories "Development;Education;Science;Mathematics;IDE" \
-	        --exec "${_install_dir}/bin/matlab -desktop"
-
-	msg2 'Reading file installation key from matlab.fik'
-	_fik=$(grep -o [0-9-]* matlab.fik)
-
-	msg2 'Modifying the installer settings'
-	sed -i "s,^# destinationFolder=,destinationFolder=${pkgdir}${_install_dir}," installer_input.txt
-	sed -i "s,^# agreeToLicense=,agreeToLicense=yes," installer_input.txt
-	sed -i "s,^# mode=,mode=silent," installer_input.txt
-	sed -i "s,^# outputFile=,outputFile=${srcdir}/installer_output.txt," installer_input.txt
-	sed -i "s,^# fileInstallationKey=,fileInstallationKey=${_fik}," installer_input.txt
-
-	if [ ! -z ${_products+isSet} ]; then
-	msg2 'Building a package with a subset of the licensed products.'
-	for _product in "${_products[@]}"; do
-		sed -i "/^#product.${_product}$/ s/^#//" installer_input.txt
-	done
-	fi
+  # Extract file installation key
+  _fik=$(grep -o '[0-9-]*' "${srcdir}/${pkgname}.fik")
+
+  # Modify the installer settings'
+  _set="${srcdir}/${pkgname}/installer_input.txt"
+  sed -i "s|^# destinationFolder=|destinationFolder=${srcdir}/build|" "${_set}"
+  sed -i "s|^# fileInstallationKey=|fileInstallationKey=${_fik}|"   "${_set}"
+  sed -i "s|^# agreeToLicense=|agreeToLicense=yes|"           "${_set}"
+  sed -i "s|^# licensePath=|licensePath=${srcdir}/matlab.lic|"    "${_set}"
+
+  # Select products if partialinstall is set
+  if [ "${partialinstall}" = 'true' ]; then
+    for _prod in "${products[@]}"; do
+      sed -i 's|^#\(product.'"${_prod}"'\)|\1|' "${_set}"
+    done
+  fi
+
+  # Desktop file
+  # Implemented a fix for intel gpus with mesa 20;
+  # https://wiki.archlinux.org/index.php/MATLAB#OpenGL_acceleration
+  # https://wiki.archlinux.org/index.php/Intel_graphics#Old_OpenGL_Driver_(i965)
+  gendesk -f -n \
+    --pkgname "${pkgname}" \
+    --pkgdesc "${pkgdesc}" \
+    --categories "Development;Education;Science;Mathematics;IDE" \
+    --mimetypes "application/x-matlab-data;text/x-matlab" \
+    --exec 'sh -c '\''if [ "${MATLAB_INTEL_OVERRIDE}" = "yes" ] ; then exec env MESA_LOADER_DRIVER_OVERRIDE=i965 matlab -desktop ; else exec matlab -desktop ; fi'\'
 }
 
-package() {
-	msg2 'Starting MATLAB installer'
-	## I assume it's a bad idea, but I had to unset a few vars to prevent
-	## fakeroot from slowing the matlab installer to a crawl (commented out by default)
-	LDLP=${LD_LIBRARY_PATH}
-	LDP=${LD_PRELOAD}
-	unset LD_LIBRARY_PATH
-	unset LD_PRELOAD
-	./install -t -inputFile "${srcdir}/installer_input.txt"
-
-	if [ $? -eq 0 ]; then
-		msg2 'Matlab installer done without error'
-	else
-		meg2 'Error encountered while running matlab installer'
-	fi
-
-        export LD_LIBRARY_PATH="$LDLP"
-        export LD_PRELOAD="$LDP"
-
-	msg2 'Installing license agreement file'
-	install -D -m644 "${pkgdir}${_install_dir}/license_agreement.txt" "${pkgdir}/usr/share/licenses/tmw/${pkgname}/LICENSE"
-
-	#msg2 'Creating links for license.dat'
-	#mv "${pkgdir}${_install_dir}/licenses" "${pkgdir}${_install_dir}/licenses.bak"
-	#ln -s "/etc/matlab/licenses/" "${pkgdir}${_install_dir}/licenses"
-
-	msg2 'Creating links for executables'
-	install -d -m755 "${pkgdir}/usr/bin/"
-	for _executable in deploytool matlab mbuild mcc mex; do
-		ln -s "${_install_dir}/bin/${_executable}" "${pkgdir}/usr/bin/${_executable}"
-	done
-
-	msg2 'Installing .desktop launcher files'
-	install -D -m644 "${pkgname}.desktop" "${pkgdir}/usr/share/applications/${pkgname}.desktop"
-	install -D -m644 "${pkgdir}${_install_dir}/help/matlab/matlab_env/matlab_desktop_icon.png" "${pkgdir}/usr/share/pixmaps/${pkgname}.png"
+build() {
+  # Using the installer with the -inputFile parameter will automatically
+  #   cause the installation to be non-interactive
+  "${srcdir}/${pkgname}/install" -inputFile "${srcdir}/${pkgname}/installer_input.txt"
+
+  # Create spoofing for Python API
+  # https://aur.archlinux.org/packages/matlab-engine-for-python/
+  cd "${srcdir}/build/extern/engines/python"
+  # Getting appropriate python version for spoofing
+  _matminor="$(find "${srcdir}/build/extern/engines/python" \
+    -name 'matlabengineforpython3*.so' |
+    sort |
+    sed 's|.*matlabengineforpython3_\([0-9]\)\.so|\1|g' |
+    tail -1)"
+  echo 'import sys' > "${srcdir}/sitecustomize.py"
+  echo "sys.version_info = (3, ${_matminor}, 0)" >> "${srcdir}/sitecustomize.py"
+
 }
 
-if ${_partialinstall} && [ -z ${_products+isSet} ]; then
-	_products=(
-		"MATLAB"
-		#"Curve_Fitting_Toolbox"
-		# fill in toolboxes/products here as needed for a partial install
-		# hint: look in your installer_input.txt file for names to use here
-		)
-fi
+package() {
+  # Install the python API
+  # https://www.mathworks.com/help/matlab/matlab_external/install-the-matlab-engine-for-python.html
+  cd "${srcdir}/build/extern/engines/python"
+  PYTHONPATH="${srcdir}" python setup.py \
+    install --root="${pkgdir}" --optimize 1
+  # Spoofing trick to fool matlab into believing 3.8 is supported
+  _matminor="$(find "${srcdir}/build/extern/engines/python" \
+    -name 'matlabengineforpython3*.so' |
+    sort |
+    sed 's|.*matlabengineforpython3_\([0-9]\)\.so|\1|g' |
+    tail -1)"
+  _prefix="$(python -c 'import sys; print(sys.prefix)')"
+  _pytminor="$(python -c 'import sys; print(sys.version_info.minor)')"
+  # Correct file names
+  if [[ "${_pytminor}" != "${_matminor}" ]]; then
+    mv "${pkgdir}/${_prefix}/lib/python3".{"${_matminor}","${_pytminor}"}
+    _egginfo="$(ls "${pkgdir}/${_prefix}/lib/python3.${_pytminor}/site-packages/"*"-py3.${_matminor}.egg-info")"
+    mv "${_egginfo}" "${_egginfo%py3."${_matminor}".egg-info}py3.${_pytminor}.egg-info"
+    sed -i "s|sys.version_info|(3, $_matminor, 0)|" \
+      "${pkgdir}/${_prefix}/lib/python3.${_pytminor}/site-packages/matlab/engine/__init__.py"
+  fi
+  # Fix erronous referances in the _arch.txt files
+  errstr="${srcdir}/build/extern/engines/python/"
+  trustr="${instdir}/extern/engines/python/"
+  for _dir in \
+    "${srcdir}/build/extern/engines/python/build/lib/matlab/engine" \
+    "${pkgdir}/${_prefix}/lib/python3.${_pytminor}/site-packages/matlab/engine" \
+    ; do
+    sed -i "s|${errstr}|${trustr}|" "${_dir}/_arch.txt"
+  done
+
+  # Moving files from build area
+  install -dm 0755 "$(dirname "${pkgdir}/${instdir}")"
+  mv "${srcdir}/build" "${pkgdir}/${instdir}"
+
+  # Copying license
+  install -D -m644 "${srcdir}/${pkgname}/license_agreement.txt" \
+    "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
+
+  # Symlink executables'
+  install -d -m755 "${pkgdir}/usr/bin/"
+  for _executable in deploytool matlab mbuild mcc; do
+    ln -s "${instdir}/bin/${_executable}" "${pkgdir}/usr/bin/${_executable}"
+  done
+  # This would otherwise conflict with mixtex
+  ln -s "${instdir}/bin/mex" "${pkgdir}/usr/bin/mex-${pkgname}"
+  # Why is this in this directory, I wonder...
+  ln -s "${instdir}/bin/glnxa64/mlint" "${pkgdir}/usr/bin/mlint"
+
+  # Install desktop files
+  install -D -m644 "${srcdir}/${pkgname}.desktop" \
+    "${pkgdir}/usr/share/applications/${pkgname}.desktop"
+
+  # Create backup directories
+  mkdir -p "${pkgdir}/${instdir}/backup/bin/glnxa64/mexopts"
+  mkdir -p "${pkgdir}/${instdir}/backup/sys/os/glnxa64"
+
+  # Link mex options to ancient libraries
+  sysdir="bin/glnxa64/mexopts"
+  mkdir -p "${pkgdir}/${instdir}/backup/${sysdir}"
+  cp "${pkgdir}/${instdir}/${sysdir}/gcc_glnxa64.xml" \
+    "${pkgdir}/${instdir}/backup/${sysdir}/"
+  sed -i "s/gcc/gcc-6/g" "${pkgdir}/${instdir}/${sysdir}/gcc_glnxa64.xml"
+  cp "${pkgdir}/${instdir}/${sysdir}/g++_glnxa64.xml" \
+    "${pkgdir}/${instdir}/backup/${sysdir}/"
+  sed -i "s/g++/g++-6/g" "${pkgdir}/${instdir}/${sysdir}/g++_glnxa64.xml"
+  cp "${pkgdir}/${instdir}/${sysdir}/gfortran.xml" \
+    "${pkgdir}/${instdir}/backup/${sysdir}/"
+  sed -i "s/gfortran/gfortran-6/g" "${pkgdir}/${instdir}/${sysdir}/gfortran.xml"
+  cp "${pkgdir}/${instdir}/${sysdir}/gfortran6.xml" \
+    "${pkgdir}/${instdir}/backup/${sysdir}/"
+  sed -i "s/gfortran/gfortran-6/g" "${pkgdir}/${instdir}/${sysdir}/gfortran6.xml"
+
+  # Remove unused library files
+  # <MATLABROOT>/sys/os/glnxa64/README.libstdc++
+  sysdir="sys/os/glnxa64"
+  mkdir -p "${pkgdir}/${instdir}/backup/${sysdir}"
+  mv "${pkgdir}/${instdir}/${sysdir}/"{libstdc++.so.6.0.22,libstdc++.so.6} \
+    "${pkgdir}/${instdir}/backup/${sysdir}/"
+  mv "${pkgdir}/${instdir}/${sysdir}/libgcc_s.so.1" \
+    "${pkgdir}/${instdir}/backup/${sysdir}/"
+  mv "${pkgdir}/${instdir}/${sysdir}/"{libgfortran.so.3.0.0,libgfortran.so.3} \
+    "${pkgdir}/${instdir}/backup/${sysdir}/"
+  mv "${pkgdir}/${instdir}/${sysdir}/"{libquadmath.so.0.0.0,libquadmath.so.0} \
+    "${pkgdir}/${instdir}/backup/${sysdir}/"
+
+  # make sure MATLAB can find libgfortran.so.3
+  mkdir -p "${pkgdir}/${instdir}/backup/bin"
+  cp "${pkgdir}/${instdir}/bin/matlab" "${pkgdir}/${instdir}/backup/bin"
+  sed -i 's|LD_LIBRARY_PATH="`eval echo $LD_LIBRARY_PATH`"|LD_LIBRARY_PATH="`eval echo $LD_LIBRARY_PATH`:/usr/lib/gcc/x86_64-pc-linux-gnu/'$(pacman -Q gcc6 | awk '{print $2}' | cut -d- -f1)'"|g' "${pkgdir}/${instdir}/bin/matlab"
+
+  # https://bbs.archlinux.org/viewtopic.php?id=236821
+  # These steps were deleted cause matlab switched to new freetype
+
+  # Install the script file to make scripting easier with matlab
+  install -Dm 0755 "${srcdir}/matlab.script" "${pkgdir}/usr/bin/matscript"
+}
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..a892d4b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,69 @@
+# MATLAB: Archlinux integration
+
+This PKGBUILD creates an Arch Linux package for MATLAB
+Additionally; it also builds python engine.
+
+***WARNING***, this package NEEDS you to obtain the files; as the files are too large to host elsewhere.
+
+## Tips
+
+* You probably want to run this locally; since the package will be large.
+If you are managing your own repos; depending on bandwidth and size constrants;
+exclude this package from your workflow.
+(Partial install is around 8 GB; and full install about 16 GB)
+* Turn off compression if this package will only be installed on the build machine;
+this cuts a fair amount of time from the build and compression is unneccessary on local machines.
+
+# Requirements
+
+Besides the dependencies; the source files MUST be present at the directory.
+The user MUST supply;
+
+* **matlab.fik**: Plain text file installation key
+* **matlab.lic**: License file
+* **matlab.tar**: Software tarball
+
+Then run `makepkg -s` from the PKGBUILD directory to build the package.
+
+## File Installation Key & Licence File:
+
+[Here is the current link to the instructions](https://www.mathworks.com/help/install/ug/install-using-a-file-installation-key.html)
+
+File installation key identifies this specific installation of matlab.
+The license file authorizes that this key can use the toolboxes.
+Follow the steps;
+
+* Go to [License center](https://www.mathworks.com/licensecenter) on mathworks
+* On install and activate tab; select (or create) an appropriate license
+* Navigate to download the license file and the file installation key
+* Download the **license file** and put the file in the repository
+* Copy and paste the **file installation key** in a plain text file
+
+## Tarball
+
+**To run the installer, libselinux is needed!**
+
+* [Download the matlab installer](https://www.mathworks.com/downloads)
+* Unpack and launch the installer
+* After logging in and accepting license; select
+`Advanced Options > I want to download without installing`
+from the top dropdown menu.
+* Select the toolboxes you want in the `PKGBUILD`.
+(Alternatively install them all)
+* Download the files to an empty directory called `matlab`
+* After downloading; from the parent directory; do
+`tar --create --verbose --file matlab.tar.gz .../matlab`
+to create the tarball.
+
+# Tips
+
+## Large files
+
+To transport large files in fat32 media (most flash drives); use split and cat;
+* **Split**: `split --bytes 3G --numeric-suffixes=0 matlab.tar.gz matlab.tar.gz.`
+* **Concatenate**: `cat matlab.tar.gz.* > matlab.tar.gz`
+
+## Modules
+
+Matlab comes with a [lot of products](https://www.mathworks.com/products.html).
+Most are not needed; check PKGBUILD to pick and choose appropriately.
diff --git a/matlab.script b/matlab.script
new file mode 100644
index 0000000..b9195d2
--- /dev/null
+++ b/matlab.script
@@ -0,0 +1,9 @@
+#!/bin/dash
+# vim:ft=sh
+
+if [ -n "$1" ] && [ -x "$1" ]; then
+  matlab -batch "$1"
+else
+  echo 'Need executable file as an argument'
+  exit 1
+fi