zshrc

############################################################################
## System shell configuration (system-dependent config before zsh)         #
############################################################################
if [[ $OSTYPE == darwin* ]]; then
	# Enable homebrew when it were installed on /opt/homebrew
	[ -f /opt/homebrew/bin/brew ] && eval $(/opt/homebrew/bin/brew shellenv)
	brew_prefix=$(brew --prefix)

	## To replace binary to linux version, install followings by brew
	## brew install coreutils findutils gnu-tar gnu-sed gawk grep
	## brew install gnutls gnu-indent gnu-getopt gnu-time gnu-units gnu-which

	# coreutils binary
	coreutils_path="$brew_prefix/opt/coreutils/libexec/gnubin"
	[ -d $coreutils_path ] && PATH="$coreutils_path:$PATH"
	unset coreutils_path
	# coreutils manpage
	coreutils_manpath="$brew_prefix/opt/coreutils/libexec/gnuman"
	[ -d $coreutils_manpath ] && MANPATH="$coreutils_manpath:$MANPATH"
	unset coreutils_manpath

	# findutils binary
	findutils_path="$brew_prefix/opt/findutils/libexec/gnubin"
	[ -d $findutils_path ] && PATH="$findutils_path:$PATH"
	unset findutils_path
	# findutils manpage
	findutils_manpath="$brew_prefix/opt/findutils/libexec/gnuman"
	[ -d $findutils_manpath ] && MANPATH="$findutils_manpath:$MANPATH"
	unset findutils_manpath

	# gnu-tar binary
	tar_path="$brew_prefix/opt/gnu-tar/libexec/gnubin"
	[ -d $tar_path ] && PATH="$tar_path:$PATH"
	unset tar_path
	# gnu-tar manpath
	tar_manpath="$brew_prefix/opt/gnu-tar/libexec/gnuman"
	[ -d $tar_manpath ] && MANPATH="$tar_manpath:$MANPATH"
	unset tar_manpath

	# gnu-sed binary
	sed_path="$brew_prefix/opt/gnu-sed/libexec/gnubin"
	[ -d $sed_path ] && PATH="$sed_path:$PATH"
	unset sed_path
	# gnu-sed manpage
	sed_manpath="$brew_prefix/opt/gnu-sed/libexec/gnuman"
	[ -d $sed_manpath ] && MANPATH="$sed_manpath:$MANPATH"
	unset sed_manpath

	# gawk binary
	awk_path="$brew_prefix/opt/gawk/libexec/gnubin"
	[ -d $awk_path ] && PATH="$awk_path:$PATH"
	unset awk_path
	# gawk manpage
	awk_manpath="$brew_prefix/opt/gawk/libexec/gnuman"
	[ -d $awk_manpath ] && MANPATH="$awk_manpath:$MANPATH"
	unset awk_manpath

	# grep binary
	grep_path="$brew_prefix/opt/grep/libexec/gnubin"
	[ -d $grep_path ] && PATH="$grep_path:$PATH"
	unset grep_path
	# grep manpage
	grep_manpath="$brew_prefix/opt/grep/libexec/gnuman"
	[ -d $grep_manpath ] && MANPATH="$grep_manpath:$MANPATH"
	unset grep_manpath

	# gnutls binary
	gnutls_path="$brew_prefix/opt/gnutls/bin"
	[ -d $gnutls_path ] && PATH="$gnutls_path:$PATH"
	unset gnutls_path
	# gnutls manpage
	gnutls_manpath="$brew_prefix/opt/gnutls/share/man"
	[ -d $gnutls_manpath ] && MANPATH="$gnutls_manpath:$MANPATH"
	unset gnutls_manpath

	# gnu-indent binary
	indent_path="$brew_prefix/opt/gnu-indent/libexec/gnubin"
	[ -d $indent_path ] && PATH="$indent_path:$PATH"
	unset indent_path
	# gnu-indent manpage
	indent_manpath="$brew_prefix/opt/gnu-indent/libexec/gnuman"
	[ -d $indent_manpath ] && MANPATH="$indent_manpath:$MANPATH"
	unset indent_manpath

	# gnu-getopt binary
	getopt_path="$brew_prefix/opt/gnu-getopt/bin"
	[ -d $getopt_path ] && PATH="$getopt_path:$PATH"
	unset getopt_path
	# gnu-getopt manpage
	getopt_manpath="$brew_prefix/opt/gnu-getopt/share/man"
	[ -d $getopt_manpath ] && MANPATH="$getopt_manpath:$MANPATH"
	unset getopt_manpath

	# gnu-time binary
	time_path="$brew_prefix/opt/gnu-time/libexec/gnubin"
	[ -d $time_path ] && PATH="$time_path:$PATH"
	unset time_path
	# gnu-time does not have manpage

	# gnu-units binary
	units_path="$brew_prefix/opt/gnu-units/libexec/gnubin"
	[ -d $units_path ] && PATH="$units_path:$PATH"
	unset units_path
	# gnu-units manpage
	units_manpath="$brew_prefix/opt/gnu-units/libexec/gnuman"
	[ -d $units_manpath ] && MANPATH="$units_manpath:$MANPATH"
	unset units_manpath

	# gnu-which binary
	which_path="$brew_prefix/opt/gnu-which/libexec/gnubin"
	[ -d $which_path ] && PATH="$which_path:$PATH"
	unset which_path
	# gnu-which manpage
	which_manpath="$brew_prefix/opt/gnu-which/libexec/gnuman"
	[ -d $which_manpath ] && MANPATH="$which_manpath:$MANPATH"
	unset which_manpath
fi

############################################################################
## Basic z-shell usage configuration (with oh-my-zsh)                      #
############################################################################
# Path to your oh-my-zsh installation.
export ZSH="$HOME/.oh-my-zsh"

# zsh and Oh-my-zsh config aliases
alias zshconfig="vi ~/.zshrc"
alias omzconfig="vi ~/.oh-my-zsh"

# ZSH Theme and plugins
ZSH_THEME="jsyoo5b"
plugins=(
  git sudo command-not-found
#  zsh-completions
  fast-syntax-highlighting
  autojump
  tmux tmuxinator
)

COMPLETION_WAITING_DOTS="true"

# Reveal aliased commands
export ZSH_PLUGINS_ALIAS_TIPS_REVEAL=1
export ZSH_PLUGINS_ALIAS_TIPS_REVEAL_TEXT="Actual command: "

# History setting
HIST_STAMPS="dd.mm.yyyy"

# zsh-completion setting
#autoload -U compinit && compinit

# tmux plugin configuration
export ZSH_TMUX_UNICODE=true

# Load oh-my-zsh with given configuration
source $ZSH/oh-my-zsh.sh

# Detect if current shell is running on WSL
if [[ -z "$WSL_DISTRO_NAME" ]]; then
	if [[ $OSTYPE == darwin* ]]; then
		# WSL cannot run macOS, skip
	elif [[ "$(</proc/version)" == *([Mm]icrosoft|WSL)* ]]; then
		# When the kernel version has Microsoft or WSL 
		WSL_DISTRO_NAME=$(grep -oP '(?<=^ID=).+' /etc/os-release | tr -d '"')
	fi
	export DISPLAY=:0
else
	# When the $WSL_DISTRO_NAME defined, current shell is running on native
	export DISPLAY=$(grep -oP '(?<=^nameserver ).+' /etc/resolv.conf):0
fi

# When the WSL distro found, attach after hostname
if [[ ! -z "$WSL_DISTRO_NAME" ]]; then
	ZSH_THEME_CONF[HOST_SUFFIX]="%F{yellow}/${WSL_DISTRO_NAME}"
fi

############################################################################
## User configuration (General shell setting)                              #
############################################################################

# manual path
export MANPATH="/usr/local/man:$MANPATH"

# Set default editor
export VISUAL=vim
export EDITOR="$VISUAL"

# Language environment
export LANG=en_US.UTF-8

# Import alias and shell config file
[ -f ~/.zsh_aliases ] && source ~/.zsh_aliases

# Import development envirnment config file
[ -f ~/.zsh_devconfig ] && source ~/.zsh_devconfig

# Enable fzf
[ -f ~/.fzf.zsh ] && source ~/.fzf.zsh

# Reset exit code to 0 for this script
# (Short-circuit condition check & apply may change exit code)
true