Switch from antigen to zgen

dotfiles/lib/zsh/antigen.zsh

@@ -1,16 +0,0 @@
-export ANTIGEN_PATH="$HOME/.antigen.zsh"
-
-function upgrade_antigen {
-	curl -L https://raw.githubusercontent.com/zsh-users/antigen/master/antigen.zsh > $ANTIGEN_PATH
-}
-
-test -e $ANTIGEN_PATH || upgrade_antigen
-
-source $ANTIGEN_PATH
-
-antigen bundle pip
-antigen bundle zsh-users/zsh-syntax-highlighting
-antigen bundle git
-antigen bundle kennethreitz/autoenv
-
-antigen apply

dotfiles/lib/zsh/zgen.sh

@@ -0,0 +1,18 @@
+export ZGEN_PATH="$HOME/.zgen"
+
+test -e $ZGEN_PATH || git clone https://github.com/tarjoilija/zgen.git $ZGEN_PATH
+
+source "$ZGEN_PATH/zgen.zsh"
+
+# if the init scipt doesn't exist
+if ! zgen saved; then
+	zgen oh-my-zsh plugins/git
+	zgen oh-my-zsh plugins/sudo
+	zgen oh-my-zsh plugins/command-not-found
+	zgen oh-my-zsh plugins/pip
+	zgen load zsh-users/zsh-syntax-highlighting
+	zgen load kennethreitz/autoenv
+
+	# generate the init script from plugins above
+	zgen save
+fi