make most of the aliases conditional, to prevent a bunch of error messages whenever loading zsh on new servers

.zshc/aliases.zsh

@@ -1,6 +1,13 @@
-alias f="$(pay-respects zsh)"
-alias wtf="navi"
-alias help="navi"
+if [[ $+commands[pay-respects] ]]; then
+  alias f="$(pay-respects zsh)"
+fi
+
+if [[ $+commands[navi] ]]; then
+  eval "$(navi widget zsh)"
+  alias wtf="navi"
+  alias help="navi"
+fi
+
 alias rzsh="source ~/.zshrc && echo 'Successfully reloaded zsh!'"
 alias aliases="${EDITOR} $ZSH_CUSTOM/aliases.zsh && rzsh"
 alias zshrc="${EDITOR} ~/.zshrc && rzsh"
@@ -10,29 +17,79 @@ alias ohmyzsh="${EDITOR} ~/.oh-my-zsh && rzsh"
 alias vi="${EDITOR}"
 alias vim="${EDITOR}"
 alias nano="${EDITOR}"
-alias neofetch="fastfetch"
-alias nf="fastfetch"
-alias ff="fastfetch"
-alias uf="uwufetch"
-alias aur="yay"
-# this lists packages installed with pacman by size in mebibytes
-alias pacsize="pacman -Qi | egrep '^(Name|Installed)' | cut -f2 -d':' | paste - - | column -t | sort -nrk 2 | grep MiB | less"
-alias lg="lazygit"
-alias lad="lazydocker"
-alias htop="btop"
+
+if [[ $+commands[fastfetch] ]]; then
+  alias neofetch="fastfetch"
+  alias nf="fastfetch"
+  alias ff="fastfetch"
+fi
+
+if [[ $+commands[uwufetch] ]]; then
+  alias uf="uwufetch"
+fi
+
+if [[ $+commands[pacman] ]]; then
+  # this lists packages installed with pacman by size in mebibytes
+  alias pacsize="pacman -Qi | egrep '^(Name|Installed)' | cut -f2 -d':' | paste - - | column -t | sort -nrk 2 | grep MiB | less"
+fi
+
+if [[ $+commands[yay] ]]; then
+  alias aur="yay"
+  alias yaystats="yay -P --stats"
+  alias pacstats="yaystats"
+fi
+
+if [[ $+commands[lazygit] ]]; then
+  alias lg="lazygit"
+fi
+if [[ $+commands[lazydocker] ]]; then
+ alias lad="lazydocker"
+fi
+if [[ $+commands[btop] ]]; then
+  alias htop="btop"
+fi
+
+
 if [[ "${XDG_SESSION_TYPE}" == "x11" ]]; then
-  alias clip="xsel -ib"
+  if [[ $+commands[xsel] ]]; then
+    alias clip="xsel -ib"
+  elif [[ $+commands[xclip] ]]; then
+    alias clip="xclip"
+  else
+    alias clip="Detected x11, but xsel or xclip are not installed."
+  fi
+
 elif [[ -n "${WAYLAND_DISPLAY}" ]]; then
-  alias clip="wl-copy"
+  if [[ $+commands[wl-copy] ]]; then
+    alias clip="wl-copy"
+  else
+    alias clip="Detected Wayland, but wl-copy is not installed."
+  fi
+
+elif [[ -n "${SSH_CONNECTION}" ]]; then
+  if [[ $+commands[lemonade] ]]; then
+    alias clip="lemonade copy"
+  else
+    alias clip="Detected an SSH connection, but lemonade is not installed."
+  fi
+
 else
   alias clip='echo "Cannot determine desktop session type, are you running a display server that is not X11 or Wayland?"'
 fi
-alias driver="nvidia-smi"
-alias gpu="sudo nvidia-settings"
-alias yaystats="yay -P --stats"
-alias pacstats="yaystats"
-alias taildrop="tailscale file"
+
+
+if [[ $+commands[nvidia-smi] ]]; then
+  alias driver="nvidia-smi"
+fi
+if [[ $+commands[nvidia-settings] ]]; then
+  alias gpu="sudo nvidia-settings"
+fi
+if [[ $+commands[forgejo-runner] ]]; then
+alias runactions="forgejo-runner exec --network=host --default-actions-url=https://www.coastalcommits.com --gitea-instance=https://www.coastalcommits.com"
+fi
+if [[ $+commands[tailscale] ]]; then
+  alias taildrop="tailscale file"
+fi
 alias protontricks="flatpak run com.github.Matoking.protontricks"
 alias sober="flatpak run org.vinegarhq.Sober"
-alias runactions="forgejo-runner exec --network=host --default-actions-url=https://www.coastalcommits.com --gitea-instance=https://www.coastalcommits.com"
 alias sudo="sudo "

.zshrc

@@ -106,4 +106,3 @@ fi
 # Compilation flags
 # export ARCHFLAGS="-arch x86_64"
 
-eval "$(navi widget zsh)"