zsh enable case-insensitive completion

Move transient prompt config into nix expression directly

home/zsh/default.nix

@@ -7,11 +7,54 @@
     enableVteIntegration = true;
     autocd = true;
     historySubstringSearch.enable = true;
+    history = {
+      extended = true;
+      ignoreDups = true;
+      ignoreSpace = true;
+    };
     oh-my-zsh = {
       enable = true;
       plugins = ["colored-man-pages" "lol" "rand-quote"];
       theme = "";
     };
-    initExtra = "source ${./transient.zsh}\n";
+    completionInit = ''
+      autoload -Uz +X compinit && compinit
+
+      ## case insensitive path-completion
+      zstyle ':completion:*' matcher-list 'm:{a-zA-Z}={A-Za-z}'
+      zstyle ':completion:*' menu select
+    '';
+    initExtra = ''
+      ## enable transient prompt
+      zle-line-init() {
+          emulate -L zsh
+
+          [[ $CONTEXT == start ]] || return 0
+
+          while true; do
+              zle .recursive-edit
+              local -i ret=$?
+              [[ $ret == 0 && $KEYS == $"\4" ]] || break
+              [[ -o ignore_eof ]] || exit 0
+          done
+
+          local saved_prompt=$PROMPT
+          local saved_rprompt=$RPROMPT
+          PROMPT="> "
+          RPROMPT=""
+          zle .reset-prompt
+          PROMPT=$saved_prompt
+          RPROMPT=$saved_rprompt
+
+          if ((ret)); then
+              zle .send-break
+          else
+              zle .accept-line
+          fi
+          return ret
+      }
+
+      zle -N zle-line-init
+    '';
   };
 }

home/zsh/transient.zsh

@@ -1,31 +0,0 @@
-#!/usr/bin/env zsh
-
-zle-line-init() {
-    emulate -L zsh
-
-    [[ $CONTEXT == start ]] || return 0
-
-    while true; do
-        zle .recursive-edit
-        local -i ret=$?
-        [[ $ret == 0 && $KEYS == $'\4' ]] || break
-        [[ -o ignore_eof ]] || exit 0
-    done
-
-    local saved_prompt=$PROMPT
-    local saved_rprompt=$RPROMPT
-    PROMPT='> '
-    RPROMPT=''
-    zle .reset-prompt
-    PROMPT=$saved_prompt
-    RPROMPT=$saved_rprompt
-
-    if ((ret)); then
-        zle .send-break
-    else
-        zle .accept-line
-    fi
-    return ret
-}
-
-zle -N zle-line-init