Store logfiles also when FAI's dirinstall fails

With the ongoing bsdmainutils transition grml32-small_sid failed
to build and we don't have any log files for debugging in our jenkins
builds. Ensure to store logfiles also when the fai dirinstall run
failed.

grml-live

@@ -184,6 +184,24 @@ umount_all() {
 }
 # }}}
 
+# store logfiles {{{
+store_logfiles() {
+  # move fai logs into grml_logs directory
+  mkdir -p "$LOG_OUTPUT"/fai/
+  cp -r "$CHROOT_OUTPUT"/var/log/fai/"$HOSTNAME"/last/* "$LOG_OUTPUT"/fai/
+  rm -rf "$CHROOT_OUTPUT"/var/log/fai
+
+  # store copy of autogenerated configuration file
+  cp ${GRML_FAI_CONFIG}/nfsroot.conf "$LOG_OUTPUT"/fai/
+
+  # copy fai package list
+  cp "$CHROOT_OUTPUT"/var/log/install_packages.list "$LOG_OUTPUT"/fai/
+  # fixup owners
+  chown root:adm "$LOG_OUTPUT"/fai/*
+  chmod 664 "$LOG_OUTPUT"/fai/*
+}
+# }}}
+
 # clean exit {{{
 bailout() {
   rm -f /var/run/fai/fai_softupdate_is_running \
@@ -745,9 +763,10 @@ else
       RC="$PIPESTATUS" # notice: bash-only
 
       if [ "$RC" != 0 ] ; then
-         log    "Error: critical error while executing fai [exit code ${RC}]. Exiting."
-         eerror "Error: critical error while executing fai [exit code ${RC}]. Exiting." ; eend 1
-         bailout 1
+        store_logfiles  # ensure to have logfiles available even if building failed
+        log    "Error: critical error while executing fai [exit code ${RC}]. Exiting."
+        eerror "Error: critical error while executing fai [exit code ${RC}]. Exiting." ; eend 1
+        bailout 1
       fi
 
       # provide inform fai about the ISO we build, needs to be provided
@@ -759,19 +778,7 @@ else
 
       FORCE_ISO_REBUILD=true
 
-      # move fai logs into grml_logs directory
-      mkdir -p "$LOG_OUTPUT"/fai/
-      cp -r "$CHROOT_OUTPUT"/var/log/fai/"$HOSTNAME"/last/* "$LOG_OUTPUT"/fai/
-      rm -rf "$CHROOT_OUTPUT"/var/log/fai
-
-      # store copy of autogenerated configuration file
-      cp ${GRML_FAI_CONFIG}/nfsroot.conf "$LOG_OUTPUT"/fai/
-
-      # copy fai package list
-      cp "$CHROOT_OUTPUT"/var/log/install_packages.list "$LOG_OUTPUT"/fai/
-      # fixup owners
-      chown root:adm "$LOG_OUTPUT"/fai/*
-      chmod 664 "$LOG_OUTPUT"/fai/*
+      store_logfiles
 
       umount_all