pretrasn lua call now done in pcall (protected call)

copy-jdk-configs.spec

@@ -5,7 +5,7 @@
 Name:    copy-jdk-configs
 
 Version: 1.1
-Release: 2%{?dist}
+Release: 3%{?dist}
 Summary: JDKs configuration files copier
 
 License:  BSD
@@ -33,14 +33,24 @@ cp -a %{SOURCE1} .
 #blob
 
 %pretrans -p <lua>
+function createPretransScript()
 -- the sript must be available during pretrans, so multiply it to tmp
-os.execute("mkdir -p " .. "%{rpm_state_dir}")
-temp_path="%{rpm_state_dir}" .. "/" .. "%{file}"
+  os.execute("mkdir -p %{rpm_state_dir}")
+  temp_path="%{rpm_state_dir}/%{file}"
 -- print("generating " .. temp_path)
-file = io.open(temp_path, "w")
-file:write([[%{pretrans_install}]])
-file:close()
+  file = io.open(temp_path, "w")
+  file:write([[%{pretrans_install}]])
+  file:close()
+end
 
+-- in netinst, the above call may fail. pcall should save instalation (as there is nothing to copy anyway)
+-- https://bugzilla.redhat.com/show_bug.cgi?id=1295701
+-- todo, decide whether to check for {rpm_state_dir} and skip on not-existing, or keep creating
+if pcall(createPretransScript) then
+-- ok
+else
+--  print("Error running %{name} pretrans.")
+end
 
 %install
 mkdir -p $RPM_BUILD_ROOT/%{_libexecdir}
@@ -48,14 +58,18 @@ cp -a %{SOURCE0} $RPM_BUILD_ROOT/%{_libexecdir}/%{file}
 
 %posttrans
 # remove file created in pretrans
-# echo "removing %{rpm_state_dir}/%{file}"
-rm "%{rpm_state_dir}/%{file}"
+# echo "removing %{rpm_state_dir}/%{file}" || :
+rm "%{rpm_state_dir}/%{file}" || :
 
 %files 
 %{_libexecdir}/%{file}
 %license LICENSE
 
 %changelog
+* Fri Jan 08 2016 Jiri Vanek <jvanek@redhat.com> - 1.1-3
+- pretrasn lua call now done in pcall (protected call)
+- also posttrans now always return 0
+
 * Wed Dec 16 2015 Jiri Vanek <jvanek@redhat.com> - 1.1-2
 - package now "installs" also during pretrans, so pretrasn scripts can use it
 - pretrasn "install" is removed in postrans