link.sh: Move away from GNU Stow.

link.sh

@@ -1,8 +1,48 @@
 #!/bin/sh
 
-stow --restow --target="$HOME/.config/alacritty" alacritty
-stow --restow --target="$HOME/.config/fish" fish
-stow --restow --target="$HOME/.config/flavours" flavours
-stow --restow --target="$HOME/.config/newsboat" newsboat
-stow --restow --target="$HOME/.config/nvim" nvim
-stow --restow --target="$HOME/.config/tmux" tmux
+link() {
+	src="$1"
+	dst="$2"
+
+	if [ "$src" = "" ] || [ "$dst" = "" ]; then
+		echo "Source or destination parameter missing." >&2
+		exit 2
+	fi
+
+	if [ ! -e "$src" ]; then
+		echo "Source file not found." >&2
+		exit 3
+	fi
+
+	if [ -e "$dst" ] && [ ! -L "$dst" ]; then
+		echo "Destination exists and is not a symlink." >&2
+		exit 4
+	fi
+
+	full_src=$(realpath -s "$src")
+	full_dst=$(realpath -s "$dst")
+
+	if [ -L "$dst" ]; then
+		if [ "$full_dst" != "$full_src" ]; then
+			ln -s -f "$full_src" "$full_dst"
+		fi
+	else
+		ln -s "$full_src" "$full_dst"
+	fi
+}
+
+cd "$(dirname "$(readlink -f "$0")")" || exit 1
+
+link ./alacritty/alacritty.yml "$HOME/.config/alacritty/alacritty.yml"
+
+link ./fish/abbr.fish "$HOME/.config/fish/abbr.fish"
+link ./fish/config.fish "$HOME/.config/fish/config.fish"
+
+link ./flavours/config.toml "$HOME/.config/flavours/config.toml"
+
+link ./newsboat/config "$HOME/.config/newsboat/config"
+
+link ./nvim/init.lua "$HOME/.config/nvim/init.lua"
+link ./nvim/vim_plugins.sh "$HOME/scripts/vim_plugins.sh"
+
+link ./tmux/tmux.conf "$HOME/.tmux.conf"