Macros

OBS-URL: https://build.opensuse.org/package/show/Base:System/rpm?expand=0&rev=397

rpm-suse_macros

@@ -264,3 +264,17 @@ BuildArch: noarch \
 %description %{-n:-n %{-n*}-}lang \
 Provides translations for the \"%{name}\" package.
 
+# package version comparison macros
+
+# compare two versions, returns -1, 0, 1, ~~~
+%rpm_vercmp() %{lua:print(rpm.expand('%1') == '~~~' and '~~~' or rpm.vercmp(rpm.expand('%1'), rpm.expand('%2')))}
+
+# expand to the installed version of a package/provides
+%pkg_version() %(LC_ALL=C rpm -q --whatprovides --qf "%%{version}" "%1" | sed -e "s/^no package provides .*/~~~/")
+
+# compare the installed version to a value. returns -1, 0, 1, ~~~
+%pkg_version_cmp() %{expand:%{expand:%%%%{rpm_vercmp %%{pkg_version %1} %%2}}}
+
+# convenience/readability
+%pkg_vcmp() (%{expand:%%{pkg_version_cmp %1 %3}} %2 0)
+