dotfiles/.zshrc

#!/bin/zsh

### DEFAULT DIRECTORY STRUCTURE
#
# ~/
# - .zshrc > Initial setup, should not need to be changed
# - .bashrc > Bash setup (empty for my dotfiles)
# - .Xresources > Initial Xresources setup, redirects to .config/.Xresources.d/
# - .tmux > Tmux setup (would love to put this into .config/ )
# - .config/ > all other (program) configuration should go in this dir
# --------- .zshrc.d/ > The actual zsh setup files, see their configuration below
# --------- .Xresources.d/ > The actual Xresources setup files
# --------- .zgen/ > The zsh plugin manager
# - .dotfiles/ > the version control of dotfiles
#
####

## Show debug information
#
# ZSH_SETUP_SHOW_DEBUG="true"
# Uncomment the above line to get debug information during the script setup.
print_dbg() {
  if [ -z $ZSH_SETUP_SHOW_DEBUG ]; then
    return
  fi
  printf $@
}

# Clone zgen if you haven't already
check_zgen_installation() {
  if [[ -z "$ZGEN_PARENT_DIR" ]]; then
    ZGEN_PARENT_DIR=${${XDG_CONFIG_DIR}:="$HOME/.config/"}
    ZGEN_DIR="$ZGEN_PARENT_DIR/zgen"
  fi
  if [[ ! -f $ZGEN_DIR/zgen.zsh ]]; then
    if [[ ! -d "$ZGEN_PARENT_DIR" ]]; then
      mkdir -p "$ZGEN_PARENT_DIR"
    fi
    pushd $ZGEN_PARENT_DIR
    git clone https://github.com/tarjoilija/zgen.git $ZGEN_DIR
    popd
  fi
  source $ZGEN_DIR/zgen.zsh
  unset ZGEN_PARENT_DIR
}

## //FIXME: Not working yet, globbing not working
#load_config_files() {
#  if [ -n "$(/bin/ls $1)" ]; then
#    #GLOB=(${1}/[0-1][0-9]-*)
#    for dotfile in $(eval "echo {$1/$2}"); do
#      print_dbg "TESTING: $dotfile\n" #//DEBUG
#      if [ -r "${dotfile}" ]; then
#        source "${dotfile}"
#      fi
#    done
#    unset GLOB
#  fi
#}

#### ZSHrc - Setting up the Shell
## 
## Almost all actual setup is being done with the help of individual files 
## in the .zsh.d/ directory. This file just loads them. They follow a specific order:
##
## 00-09 are bootstrapping the zsh environment, setting aliases and sane
##       shell defaults which should need no changes (though you can of course).
## 10-19 allow custom bootstrapping of things that need to be set before any
##       zsh plugins are loaded (in my case, theme environment vars, etc)
## 20-29 are run *during* zgen setup and can include plugins to be loaded
## 30-99 are run after plugins are loaded and can be configured 
##       in whatever way you wish
##
## Most of them are documented, and they try to have sensible naming. 
## If you want to supply your own directory of zsh config files you can do so 
## by setting the ZSH_CONFIG_DIR environment variable. You can also drop 
## configuration files into the config dir without any numbers prepended, they
## will be run after numbered ones (in a random order) if you uncomment the 
## corresponding line below.

# Set ZSH_CONFIG_DIR to default to ~/.config/zsh, or let user override
# Exit early if no configuration directory has been found
if [ ! -d ${ZSH_CONFIG_DIR:="${XDG_CONFIG_DIR:-$HOME/.config}/zsh"} ]; then
  # If the user explicitly overrode the path give him an error
  if [ ! $ZSH_CONFIG_DIR = "${XDG_CONFIG_DIR:-$HOME/.config/}/zsh" ]; then
    printf "\$ZSH_CONFIG_DIR=$ZSH_CONFIG_DIR/ does not exist.\n"
  fi
  PS1="$HOME $ "
  return
fi

# //TODO: Prints error when -no- files are found
# Load bootstrap settings (00-19) before plugin initialization
print_dbg "Starting bootstrap (00-19)...\n"
load_config_files $ZSH_CONFIG_DIR 01

# set up zgen - load external zsh plugins
# If you need to reload your plugins use 'zgen reset' and restart
# your shell
if [ -n "$(/bin/ls $ZSH_CONFIG_DIR/)" ]; then
  print_dbg "Starting plugin system...\n" #//DEBUG
  
  check_zgen_installation
  
  if ! zgen saved; then
	print_dbg "Applying plugins (20-29)...\n"
	load_config_files $ZSH_CONFIG_DIR 2

    # Save it all to init script.
    zgen save
  else
    print_dbg "Plugins already applied. If you want to re-apply run 'zgen reset' and open new terminal.\n"
  fi 
fi

# Load additional settings (30-99) after plugin initialization
print_dbg "Setting up remaining scripts (30-99)\n"
load_config_files $ZSH_CONFIG_DIR 3456789

# Uncomment this section to enable execution of arbitrarily named config files
# if [ -n "$(/bin/ls $ZSH_CONFIG_DIR/)" ]; then
#   GLOB=($ZSH_CONFIG_DIR/[:alpha:]*)
#   for dotfile in $GLOB; do
#     print_dbg "Phase 4, Alphabetic: $dotfile\n" #//DEBUG
#     if [ -r "${dotfile}" ]; then
#       source "${dotfile}"
#     fi
#   done
#   unset GLOB
# fi

unset ZSH_CONFIG_DIR
# unset ZGEN_DIR -- Needs to remain set for some plugins to function
unset ZGEN_PARENT_DIR
unset ZSH_SETUP_SHOW_DEBUG
unfunction print_dbg
unfunction load_config_files
unfunction check_zgen_installation

# //FIXME this needs to get the hell out of here -> put it in an env loading file
export GOPATH="$HOME/Code/go"
export PATH="$PATH:$GOPATH/bin"