Add zsh and fish completion wrt #19

shell-completions/fish

@@ -0,0 +1,19 @@
+ function _ghcup
+    set -l cl (commandline --tokenize --current-process)
+    # Hack around fish issue #3934
+    set -l cn (commandline --tokenize --cut-at-cursor --current-process)
+    set -l cn (count $cn)
+    set -l tmpline --bash-completion-enriched --bash-completion-index $cn
+    for arg in $cl
+      set tmpline $tmpline --bash-completion-word $arg
+    end
+    for opt in (ghcup $tmpline)
+      if test -d $opt
+        echo -E "$opt/"
+      else
+        echo -E "$opt"
+      end
+    end
+end
+
+complete --no-files --command ghcup --arguments '(_ghcup)'

shell-completions/zsh

@@ -0,0 +1,32 @@
+#compdef ghcup
+
+local request
+local completions
+local word
+local index=$((CURRENT - 1))
+
+request=(--bash-completion-enriched --bash-completion-index $index)
+for arg in ${words[@]}; do
+  request=(${request[@]} --bash-completion-word $arg)
+done
+
+IFS=$'\n' completions=($( ghcup "${request[@]}" ))
+
+for word in $completions; do
+  local -a parts
+
+  # Split the line at a tab if there is one.
+  IFS=$'\t' parts=($( echo $word ))
+
+  if [[ -n $parts[2] ]]; then
+     if [[ $word[1] == "-" ]]; then
+       local desc=("$parts[1] ($parts[2])")
+       compadd -d desc -- $parts[1]
+     else
+       local desc=($(print -f  "%-019s -- %s" $parts[1] $parts[2]))
+       compadd -l -d desc -- $parts[1]
+     fi
+  else
+    compadd -f -- $word
+  fi
+done