.zshrc

.zshrc

#
# Executes commands at the start of an interactive session.
#
# Authors:
#   Sorin Ionescu <[email protected]>
#

# Source Prezto.
if [[ -s "${ZDOTDIR:-$HOME}/.zprezto/init.zsh" ]]; then
  source "${ZDOTDIR:-$HOME}/.zprezto/init.zsh"
fi

# Customize to your needs...
path=($HOME/.linuxbrew/bin(N-/) $path)
path=($HOME/.local/bin(N-/) $path)
export PATH="/home/rick/.linuxbrew/sbin:$PATH"

if [[ -r ~/.local/lib/python3.5/site-packages/powerline/bindings/zsh/powerline.zsh ]]; then
    source ~/.local/lib/python3.5/site-packages/powerline/bindings/zsh/powerline.zsh
fi

alias ghc="stack ghc"
alias ghci="stack ghci"
alias runghc="stack runghc"
alias runhaskell="stack runghc"

autoload -Uz promptinit
promptinit
prompt sorin

function is_exists() { type "$1" >/dev/null 2>&1; return $?; }
function is_osx() { [[ $OSTYPE == darwin* ]]; }
function is_screen_running() { [ ! -z "$STY" ]; }
function is_tmux_runnning() { [ ! -z "$TMUX" ]; }
function is_screen_or_tmux_running() { is_screen_running || is_tmux_runnning; }
function shell_has_started_interactively() { [ ! -z "$PS1" ]; }
function is_ssh_running() { [ ! -z "$SSH_CONECTION" ]; }

function tmux_automatically_attach_session()
{
    if is_screen_or_tmux_running; then
            ! is_exists 'tmux' && return 1

        if is_tmux_runnning; then
	            echo "${fg_bold[red]} _____ __  __ _   ___  __ ${reset_color}"
		                echo "${fg_bold[red]}|_   _|  \/  | | | \ \/ / ${reset_color}"
				            echo "${fg_bold[red]}  | | | |\/| | | | |\  /  ${reset_color}"
					                echo "${fg_bold[red]}  | | | |  | | |_| |/  \  ${reset_color}"
							            echo "${fg_bold[red]}  |_| |_|  |_|\___//_/\_\ ${reset_color}"
								            elif is_screen_running; then
									                echo "This is on screen."
											        fi
												    else
												            if shell_has_started_interactively && ! is_ssh_running; then
													                if ! is_exists 'tmux'; then
															                echo 'Error: tmux command not found' 2>&1
																	                return 1
																			            fi

            if tmux has-session >/dev/null 2>&1 && tmux list-sessions | grep -qE '.*]$'; then
	                    # detached session exists
			                    tmux list-sessions
					                    echo -n "Tmux: attach? (y/N/num) "
							                    read
									                    if [[ "$REPLY" =~ ^[Yy]$ ]] || [[ "$REPLY" == '' ]]; then
											                        tmux attach-session
														                    if [ $? -eq 0 ]; then
																                            echo "$(tmux -V) attached session"
																			                            return 0
																						                        fi
																									                elif [[ "$REPLY" =~ ^[0-9]+$ ]]; then
																											                    tmux attach -t "$REPLY"
																													                        if [ $? -eq 0 ]; then
																																                        echo "$(tmux -V) attached session"
																																			                        return 0
																																						                    fi
																																								                    fi
																																										                fi

            if is_osx && is_exists 'reattach-to-user-namespace'; then
	                    # on OS X force tmux's default command
			                    # to spawn a shell in the user's namespace
					                    tmux_config=$(cat $HOME/.tmux.conf <(echo 'set-option -g default-command "reattach-to-user-namespace -l $SHELL"'))
							                    tmux -f <(echo "$tmux_config") new-session && echo "$(tmux -V) created new session supported OS X"
									                else
											                tmux new-session && echo "tmux created new session"
													            fi
														            fi
															        fi
																}
																tmux_automatically_attach_session