mkosi: Add zsh to Arch packages

Useful for testing zsh completion changes.

shell-completion/bash/systemd-analyze

@@ -55,13 +55,14 @@ _systemd_analyze() {
     )
 
     local -A VERBS=(
-        [STANDALONE]='time blame plot dump unit-paths exit-status condition calendar timestamp timespan'
+        [STANDALONE]='time blame plot dump unit-paths exit-status calendar timestamp timespan'
         [CRITICAL_CHAIN]='critical-chain'
         [DOT]='dot'
         [VERIFY]='verify'
         [SECCOMP_FILTER]='syscall-filter'
         [CAT_CONFIG]='cat-config'
         [SECURITY]='security'
+        [CONDITION]='condition'
     )
 
     local CONFIGS='systemd/bootchart.conf systemd/coredump.conf systemd/journald.conf
@@ -153,6 +154,18 @@ _systemd_analyze() {
             fi
             comps=$( __get_services $mode )
         fi
+
+    elif __contains_word "$verb" ${VERBS[CONDITION]}; then
+        if [[ $cur = -* ]]; then
+            comps='--help --version --system --user --global --no-pager --root --image'
+        elif [[ $prev = "-u" ]] || [[ $prev = "--unit" ]]; then
+            if __contains_word "--user" ${COMP_WORDS[*]}; then
+                mode=--user
+            else
+                mode=--system
+            fi
+            comps=$( __get_services $mode )
+        fi
     fi
 
     COMPREPLY=( $(compgen -W '$comps' -- "$cur") )