# If kversion isn't defined on the rpmbuild line, define it here.
%if 0%{!?kversion:1} || "%{?kversion}" == ""
%define kversion 3.10.0-693.5.2.el7.%{_target_cpu}
%endif

# e.g.: wacom_w8001.ko
%define skip_existed_modules %{nil}
%define skip_existed_modules 0
# e.g.: hid-wacom.ko
%define skip_other_modules %{nil}
%define skip_other_modules 0

# The kABI package contains information pertaining to the CentOS
# Linux kernel ABI, including lists of kernel symbols that are
# needed by external Linux kernel modules, and a yum plugin to aid
# enforcement.
%define support_kernel_abi_whitelists %{nil}
%define support_kernel_abi_whitelists 1
%define support_kernel_plus_abi_whitelists %{nil}
%define support_kernel_plus_abi_whitelists 0

# Update kernel requirements in the kmodtool script.
%define update_kmodtool %{nil}
%define update_kmodtool 1

# Define the kmod package name here.
%define kmod_name wacom
%define source_name input-%{kmod_name}

# Disable the building of the debug package(s).
%define debug_package %{nil}

%define kmod_package kmod
%if 0%{?rhel} && 0%{?rhel} <= 6
%define kmod_package module-init-tools
%endif

%define doc_license %{nil}
%define doc_license 1
%if 0%{?rhel}%{?fedora}
  %if 0%{?rhel}
    %if 0%{?rhel} < 7
      %define doc_license 0
    %endif
  %else
    %if 0%{?fedora} < 19
      %define doc_license 0
    %endif
  %endif
%endif

%define license_files COPYING

Name:           %{kmod_name}-kmod
Version:        0.37.1
Release:        4%{?dist}
Group:          System Environment/Kernel
License:        GPLv2
Summary:        %{kmod_name} kernel module(s)
#URL:            https://downloads.sourceforge.net/linuxwacom/
#URL:            http://linuxwacom.sourceforge.net/wiki/index.php/Input-wacom
URL:            https://github.com/linuxwacom/input-wacom/wiki/Installing-input-wacom-from-source

# Sources.
#Source0:        https://downloads.sourceforge.net/linuxwacom/%{source_name}-%{version}.tar.bz2
Source0:        https://github.com/linuxwacom/%{source_name}/archive/%{source_name}-%{version}.tar.gz#/%{source_name}-%{version}.tar.gz
# Obsoleted - use COPYING instead.
Source5:        GPL-v2.0.txt
Source10:       kmodtool-%{kmod_name}-el7.sh

ExclusiveArch:  x86_64

BuildRequires:  perl
BuildRequires:  redhat-rpm-config
BuildRequires:  rpm
BuildRequires:  coreutils
BuildRequires:  findutils
BuildRequires:  grep
BuildRequires:  sed
BuildRequires:  bash
BuildRequires:  make
BuildRequires:  gcc-c++
BuildRequires:	pkgconfig

BuildRequires:	automake
BuildRequires:	autoconf
BuildRequires:	libtool
BuildRequires:	gettext

BuildRequires:  kernel-devel
BuildRequires:  %{kmod_package}
# https://blog.laimbock.com/2013/11/12/rhel-kernel-abi-reference-files-not-found/
#BuildRequires:  kabi-whitelists
%if 0%{?support_kernel_abi_whitelists}
BuildRequires:  kernel-abi-whitelists
%endif
%if 0%{?support_kernel_plus_abi_whitelists}
BuildRequires:  kernel-plus-abi-whitelists
%endif
# Use built-in kmodtool script
#BuildRequires:  kmodtool

Requires:       %{kmod_package}

# Magic hidden here.
%if 0%{?update_kmodtool}
# Update kernel requirements in the kmodtool script.
%define kversion_required_base %( echo "%{kversion}" 2>/dev/null | grep -Eo '^[^-]+-[0-9]+' 2>/dev/null )
%define kversion_required_postfix %( echo "%{kversion}" 2>/dev/null | grep -Eo '\\.[^0-9-]+[^.]*(\\.[^.-]+)*$' 2>/dev/null )
%define kversion_required_distro %( echo "%{kversion_required_postfix}" 2>/dev/null | sed -re 's/^(.+)\\.[^.]+$/\\1/' 2>/dev/null )
%define kversion_required %{?kversion_required_base}%{?kversion_required_distro}
%{expand:%( kmodtool_temp="$( mktemp "%{_builddir}/kmodtool-%{kmod_name}-el7.sh.XXXXXX" )" >/dev/null 2>&1 ; %{__cp} "%{SOURCE10}" "${kmodtool_temp}" >/dev/null 2>&1 ; sed -i -re  's/(^Requires:[[:blank:]]+kernel[[:blank:]]+(>=|==)[[:blank:]]+).*$/\1%{kversion_required}/' "${kmodtool_temp}" >/dev/null 2>&1 ; sh "${kmodtool_temp}" rpmtemplate "%{kmod_name}" "%{kversion}" "" ; %{__rm} -f "${kmodtool_temp}" >/dev/null 2>&1 )}
%else
%{expand:%( sh "%{SOURCE10}" rpmtemplate "%{kmod_name}" "%{kversion}" "" )}
%endif

%description
This package provides the %{kmod_name} kernel module(s).
It is built to depend upon the specific ABI provided by a range of releases
of the same variant of the Linux kernel and not on any one specific build.

%prep
%if "%( echo "$( basename "%{SOURCE0}" 2>/dev/null | tail -n 1 2>/dev/null | grep -Eo '\.[^.]+$' 2>/dev/null )" 2>/dev/null  )" == ".gz"
# if GitHub archive
%setup -q -n "%{source_name}-%{source_name}-%{version}"
%else
%setup -q -n "%{source_name}-%{version}"
%endif

# for debug
# e.g.: 3.10.0-693.5.2.el7.x86_64
echo "%{kversion}"
# e.g.: 3.10.0-693.el7
echo "%{kversion_required}"

%build
KSRC="%{_usrsrc}/kernels/%{kversion}"

%define configure_options --with-kernel-version="%{kversion}" --with-kernel="${KSRC}"

if [[ -x "autogen.sh" ]]; then
  ./autogen.sh %{?configure_options}
fi

%configure %{?configure_options}

%define kernel_subdirs "$( grep -E '^SUBDIRS[[:blank:]]+=[[:blank:]]+' Makefile | sed -re 's/^SUBDIRS[[:blank:]]+=[[:blank:]]+(.*)$/\\1/' )"
KERNEL_SUBDIRS=%{?kernel_subdirs}
export KERNEL_SUBDIRS

# for debug
# e.g.: 3.7 3.17
echo "${KERNEL_SUBDIRS}"

%define make_options -C "${KSRC}" %{?_smp_mflags} modules M="${PWD}"
%{__make} %{?make_options}

for KERNEL_SUBDIR in ${KERNEL_SUBDIRS}; do
  if [[ -d "${KERNEL_SUBDIR}" ]]; then
    pushd "${KERNEL_SUBDIR}" >/dev/null
      %{__make} %{?make_options}
    popd >/dev/null
  fi
done

# The version file does not exist in GitHub repo.
if [[ ! -f "version" ]]; then
  echo "%{version}" >  "version"
fi

%install
%{__install} -d "%{buildroot}/lib/modules/%{kversion}/extra/%{kmod_name}/"

KERNEL_SUBDIRS=%{?kernel_subdirs}
export KERNEL_SUBDIRS

for KERNEL_SUBDIR in ${KERNEL_SUBDIRS}; do
  if [[ -d "${KERNEL_SUBDIR}" ]]; then
    pushd "${KERNEL_SUBDIR}" >/dev/null
      find * -mindepth 0 -maxdepth 0 -type f -name '*.ko' -print0 2>/dev/null | sort -z -uV | while IFS= read -rd '' kernel_module_path; do
          %if 0%{?skip_existed_modules}
         # skip already existed modules
         [[ -f "%{buildroot}/lib/modules/%{kversion}/extra/%{kmod_name}/$( basename "${kernel_module_path}" )" ]] && continue || :
         %endif
         %{__install} -p -m 0755 "${kernel_module_path}" "%{buildroot}/lib/modules/%{kversion}/extra/%{kmod_name}/"
      done
    popd >/dev/null
  fi
  %if 0%{?skip_other_modules}
  # skip other modules
  break
  %endif
done

touch "kmod-%{kmod_name}.conf"
find "%{buildroot}/lib/modules/%{kversion}/extra/%{kmod_name}"/* -mindepth 0 -maxdepth 0 -type f -name '*.ko' -print0 2>/dev/null | sort -z -uV | while IFS= read -rd '' kernel_module_path; do
  kernel_module_file="$( basename ${kernel_module_path} )"
  kernel_module="${kernel_module_file%.*}"
  echo "override ${kernel_module} * weak-updates/%{kmod_name}" >> "kmod-%{kmod_name}.conf"
done
echo >> "kmod-%{kmod_name}.conf"

# for debug
# e.g.:
# override hid-wacom * weak-updates/wacom
# override wacom * weak-updates/wacom
# override wacom_w8001 * weak-updates/wacom
# 
cat "kmod-%{kmod_name}.conf"

# weak-updates
%{__install} -d "%{buildroot}%{_sysconfdir}/depmod.d/"
%{__install} -p -m 0644 "kmod-%{kmod_name}.conf" "%{buildroot}%{_sysconfdir}/depmod.d/"

# docs
%{__install} -d "%{buildroot}%{_defaultdocdir}/kmod-%{kmod_name}-%{version}/"
#%{__install} -p -m 0644 "%{SOURCE5}" "%{buildroot}%{_defaultdocdir}/kmod-%{kmod_name}-%{version}/"
%{__install} -p -m 0644 "AUTHORS" "%{buildroot}%{_defaultdocdir}/kmod-%{kmod_name}-%{version}/"
%{__install} -p -m 0644 "ChangeLog" "%{buildroot}%{_defaultdocdir}/kmod-%{kmod_name}-%{version}/"
%{__install} -p -m 0644 "COPYING" "%{buildroot}%{_defaultdocdir}/kmod-%{kmod_name}-%{version}/"
%{__install} -p -m 0644 "NEWS" "%{buildroot}%{_defaultdocdir}/kmod-%{kmod_name}-%{version}/"
%{__install} -p -m 0644 "README" "%{buildroot}%{_defaultdocdir}/kmod-%{kmod_name}-%{version}/"
%{__install} -p -m 0644 "version" "%{buildroot}%{_defaultdocdir}/kmod-%{kmod_name}-%{version}/"

# Strip the modules(s)
find "%{buildroot}" -type f -name '*.ko' -exec %{__strip} --strip-debug '{}' \;

# Sign the modules(s)
%if %{?_with_modsign:1}%{!?_with_modsign:0}
# If the module signing keys are not defined, define them here.
%{!?privkey: %define privkey %{_sysconfdir}/pki/SECURE-BOOT-KEY.priv}
%{!?pubkey: %define pubkey %{_sysconfdir}/pki/SECURE-BOOT-KEY.der}
for module in "$( find "%{buildroot}" -type f -name '*.ko' )"; do
  %{__perl} "/usr/src/kernels/%{kversion}/scripts/sign-file" \
    sha256 "%{privkey}" "%{pubkey}" "${module}";
done
%endif

%clean
%{__rm} -rf "%{buildroot}"

# Auto-generated by kmodtool
#%%files
#%%if 0%{?doc_license}
#%%license %{license_files}
#%%else
#%%doc %{license_files}
#%%endif
#%%doc AUTHORS ChangeLog NEWS README version
#%%{_sysconfdir}/depmod.d/kmod-%{kmod_name}.conf
#/lib/modules/%{kversion}/extra/%{kmod_name}/*.ko

%changelog
* Sun Oct 29 2017 Tomasz Tomasik <scx.mail@gmail.com> - 0.37.1-4
- Update URL and Source (GitHub instead of SourceForge)
- Update requirements
- Update build method

* Sun Oct 29 2017 Tomasz Tomasik <scx.mail@gmail.com> - 0.37.1-3
- Auto-detect kernel requirements
- Auto-update kmodtool script

* Sun Oct 29 2017 Tomasz Tomasik <scx.mail@gmail.com> - 0.37.1-2
- Add support for kernel-abi-whitelists

* Sat Oct 28 2017 Tomasz Tomasik <scx.mail@gmail.com> - 0.37.1-1
- Update to 0.37.1
- Update kmodtool-wacom-el7.sh
- Update URL and Source
- Update requirements
- Drop Source5 ("GPL-v2.0.txt") - tarball already contains the "COPYING" file
- Rewrite prep, build and install sections
- Auto-detect supported kernel modules
- Rebuilt against EL7

* Tue Apr 18 2017 Tomasz Tomasik <scx.mail@gmail.com> - 0.35.0-1
- Update to 0.35.0
- Rebuilt for 3.10.0-514 kernel
- Cleanup SPEC file

* Thu Mar 24 2016 Tomasz Tomasik <scx.mail@gmail.com> - 0.30.2-1
- Initial el7 build of the kmod package.
  [https://sourceforge.net/projects/linuxwacom/files/xf86-input-wacom/]