Attachment 1479818 Details for Bug 1200302 – Spec of testpkg which handles upgrades/reinstall with alternatives.

Spec of testpkg which handles upgrades/reinstall with alternatives.

testpkg.spec (text/plain), 3.25 KB, created by Severin Gehwolf on 2018-08-30 13:51:58 UTC

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Creator: Severin Gehwolf

Created: 2018-08-30 13:51:58 UTC

Size: 3.25 KB

patch

obsolete

>%global         uniqueprefix    %{name}-%{version}-%{release}.%{_arch}
>%global         bindir          %{_datadir}/%{uniqueprefix}/bin
>%global         major           1
># priority must be 7 digits in total
># setting to 1, so debug ones can have 0
>%global         priority        000000%{major}
>%global         rpm_state_dir   %{_localstatedir}/lib/rpm-state/%{name}
>
>Name:           testpkg
>Version:        %{major}.0
>Release:        4%{?dist}
>Summary:        Test package for re-install
>
>License:        GPL
>URL:            https://fedoraproject.org
>
>%description
>A test package
>
>%prep
># nothing
>
>%build
>cat > %{name}-script <<END
>#!/bin/bash
>echo %{name}-script from %{uniqueprefix}
>exit 0
>END
>
>%install
>mkdir -p %{buildroot}%{bindir}
>install -m 755 %{name}-script %{buildroot}%{bindir}/%{name}-script
>
>%post
>echo post: %{uniqueprefix} - $1
>alternatives \
>  --install %{_bindir}/%{name}-script %{name}-script %{bindir}/%{name}-script %{priority}  --family %{name}.%{_arch}
># Leave some trace for posttrans. posttrans will handle upgrade/reinstall
># cases with traces from post and postun. Note: $1 will be > 1 for
># upgrade/reinstall/parallel install.
># We don't need traces for other cases. Write the
># NVRA to the file so as to be (potentially) able to
># later use it for removing the alternative in posttrans.
>if [ $1 -gt 1 ]; then
>  mkdir %{rpm_state_dir} || :
>  echo %{uniqueprefix} > %{rpm_state_dir}/upgrade
>fi
>
># Note: posttrans isn't run on pkg deletion. Hence we need postun
>#       for this case. Guard it with $1 -eq 0 so as to not run it
>#       for upgrades/reinstall. Only provide a NVRA trace for the
>#       upgrade/reinstall case. Write the NVRA to file 'upgrade'
>#       so as to be able to use that info in posttrans.
>%postun
>echo postun: %{uniqueprefix} - $1
>if [ $1 -eq 0 ]; then
>   echo removing alternative for pkg deletion
>   alternatives --remove %{name}-script %{bindir}/%{name}-script
>else
>  # Might exist on re-install
>  if [ ! -e %{rpm_state_dir} ]; then
>    mkdir %{rpm_state_dir} || :
>  fi
>  echo %{uniqueprefix} > %{rpm_state_dir}/upgrade
>fi
>
>%posttrans
>echo posttrans: %{uniqueprefix} - $1
>if [ -e %{rpm_state_dir}/upgrade ]; then
>    echo upgrade or re-install
>    upgrade_nvr=$(cat %{rpm_state_dir}/upgrade)
>    # If we have a different NVRA written to the upgrade file in
>    # RPM state dir, we know this is an upgrade. Remember for an
>    # upgrade the order is: post(new) => postun(old) => posttrans(new)
>    # Since we want to remove the old alternative NVRA, postun(old)
>    # will overwrite it with the right NRVA in file 'upgrade'. Use
>    # that NVRA so as to remove the right alternative.
>    if [ "%{uniqueprefix}" != "${upgrade_nvr}" ]; then
>      echo upgrade, removing old alternative ${upgrade_nvr}
>      alternatives --remove %{name}-script %{_datadir}/${upgrade_nvr}/bin/%{name}-script
>    else
>      echo reinstall of %{uniqueprefix}
>    fi
>fi
>rm -rf %{rpm_state_dir}
>
>%files
>%{bindir}
>
>%changelog
>* Thu Aug 30 2018 Severin Gehwolf <sgehwolf@redhat.com> - 1.0-4
>- Attempt approach with rpm state and posttrans.
>
>* Thu Aug 30 2018 Severin Gehwolf <sgehwolf@redhat.com> - 1.0-3
>- rebuilt
>
>* Thu Aug 30 2018 Severin Gehwolf <sgehwolf@redhat.com> - 1.0-2
>- Proposed solution with $1 -eq 0 check.
>
>* Thu Aug 30 2018 Severin Gehwolf <sgehwolf@redhat.com> - 1.0-1
>- Initial test pkg

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Attachments on bug 1200302: 1063275 | 1072210 | 1479818