zsh: adjust profile/.zshenv for zsh and add .zshrc

bootstrap

@@ -41,6 +41,7 @@ ${XDG_CONFIG_HOME}/tmux
 ${XDG_CONFIG_HOME}/nvim
 ${XDG_CONFIG_HOME}/nvim/autoload
 ${XDG_CONFIG_HOME}/shell
+${XDG_CONFIG_HOME}/zsh
 ${XDG_DATA_HOME}/bash
 ${XDG_DATA_HOME}/bash-completion/completions
 ${XDG_DATA_HOME}/less
@@ -57,6 +58,7 @@ files/bashrc                ${HOME}/.bashrc
 files/bash_profile          ${HOME}/.bash_profile
 files/jupyter_custom.js     ${HOME}/.jupyter/custom/custom.js
 files/jupyter_notebook.json ${HOME}/.jupyter/nbconfig/notebook.json
+files/profile.sh            ${HOME}/.zshenv
 files/ssh_config            ${HOME}/.ssh/config
 files/alacritty.yml         ${XDG_CONFIG_HOME}/alacritty/alacritty.yml
 files/gitconfig             ${XDG_CONFIG_HOME}/git/config
@@ -70,6 +72,7 @@ files/init.vim              ${XDG_CONFIG_HOME}/nvim/init.vim
 files/aliases.sh            ${XDG_CONFIG_HOME}/shell/aliases.sh
 files/profile.sh            ${XDG_CONFIG_HOME}/shell/profile.sh
 files/solarized.sh          ${XDG_CONFIG_HOME}/shell/solarized.sh
+files/zshrc                 ${XDG_CONFIG_HOME}/zsh/.zshrc
 EOF
 )
 

files/profile.sh

@@ -23,38 +23,40 @@ export LOCAL_CONFIG="$HOME/.local/etc"
 export LOCAL_PREFIX="/usr/local"
 export PAGER=less
 export PYTHONSTARTUP="$XDG_CONFIG_HOME/python/startup.py"
-
-if command -v manpath >/dev/null 2>&1; then
-    MANPATH="$(unset MANPATH; manpath)"
-    export MANPATH
-fi
+export ZDOTDIR="$XDG_CONFIG_HOME/zsh"
 
 # Prevent path_helper from messing with the PATH when starting tmux.
 #   See: https://superuser.com/a/583502
-[ "$(uname -s)" == "Darwin" ] && { PATH=""; source /etc/profile; }
-
-_prepend_path() {  # prepend $1 to var $2 avoiding duplicates using : as separator
-    if [ -d "$1" ] && [ -n "$2" ]; then
-        local _path="${!2}"                     # get path variable value
-        case ":$_path:" in
-            *":$1:"*) :;;                       # dir already in path, noop (:)
-            *) _path="$1${_path:+:}$_path";;    # prepend (adding : if not empty)
-        esac
-        printf -v "$2" "%s" "$_path"            # write back to path variable
-    fi
-}
+[ "$(uname -s)" = "Darwin" ] && { PATH=""; source /etc/profile; }
 
 # Add custom bin dirs to PATH if they exist and are not already in PATH.
+while read -r dir; do
+    case ":${PATH:=$dir}:" in
+        *:"$dir":*) ;;
+        *) PATH="$dir:$PATH" ;;
+    esac
+done <<EOL
+    $LOCAL_PREFIX/bin
+    $HOME/.local/bin
+EOL
+export PATH
+
 # Prepend custom man directories to MANPATH if they exist, so that we get
 # correct man page entries when multiple versions of a command are
 # available.
-while read -r var dir; do _prepend_path "$dir" "$var"; done <<EOL
-    PATH    $LOCAL_PREFIX/bin
-    MANPATH $LOCAL_PREFIX/share/man
-    PATH    $HOME/.local/bin
-    MANPATH $HOME/.local/share/man
+[ command -v manpath >/dev/null 2>&1 ] && MANPATH="$(unset MANPATH; manpath)"
+while read -r dir; do
+    case ":${MANPATH:=$dir}:" in
+        *:"$dir":*) ;;
+        *) MANPATH="$dir:$MANPATH" ;;
+    esac
+done <<EOL
+    $LOCAL_PREFIX/share/man
+    $HOME/.local/share/man
 EOL
-unset var dir _prepend_path
+export MANPATH
+
+unset dir
 
 # This check has to be done after PATH manipulation above so we can find brew.
 if command -v brew >/dev/null 2>&1; then

files/zshrc

@@ -0,0 +1,8 @@
+#!/bin/zsh
+# Set up zsh for interactive use (options, prompt, aliases, etc.)
+
+stty -ixon # disable ctrl-s and ctrl-q
+
+[ -f "${XDG_CONFIG_HOME}/shell/aliases.sh" ] && source "${XDG_CONFIG_HOME}/shell/aliases.sh"
+[ -f "${XDG_CONFIG_HOME}/shell/solarized.sh" ] && source "${XDG_CONFIG_HOME}/shell/solarized.sh"
+