dotfiles/dotfiles/.bashrc

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Bash

# Return immediately if non-interactive (makes FTP clients happy)
[[ "$-" == *i* ]] || return
bashrc_customize_environment() {
[ -z "$BACKGROUND" ] && export BACKGROUND="dark"
export EDITOR="vim"
export LANG="en_US.UTF-8"
export LANGUAGE="en_US"
export LC_CTYPE="en_US.UTF-8"
export LC_ALL="en_US.UTF-8"
export LESS="-i -j.49 -M -R -z-2"
export LESSHISTFILE=/dev/null
export PAGER=less
# Eternal bash history (from https://stackoverflow.com/a/19533853)
export HISTCONTROL=erasedups
export HISTFILESIZE=
export HISTSIZE=
export HISTTIMEFORMAT="[%F %T] "
export HISTFILE=~/.bash_eternal_history
# Color codes and RGB definitions
export Base03="1;30" Base03_RGB="002B36"
export Base02="0;30" Base02_RGB="073642"
export Base01="1;32" Base01_RGB="586E75"
export Base00="1;33" Base00_RGB="657B83"
export Base0="1;34" Base0_RGB="839496"
export Base1="1;36" Base1_RGB="93A1A1"
export Base2="0;37" Base2_RGB="EEE8D5"
export Base3="1;37" Base3_RGB="FDF6E3"
export Red="0;31" Red_RGB="DC322F"
export Orange="1;31" Orange_RGB="CB4B16"
export Yellow="0;33" Yellow_RGB="B58900"
export Green="0;32" Green_RGB="859900"
export Cyan="0;36" Cyan_RGB="2AA198"
export Blue="0;34" Blue_RGB="268BD2"
export Violet="1;35" Violet_RGB="6C71C4"
export Magenta="0;35" Magenta_RGB="D33682"
}
bashrc_customize_shell_options() {
for option in cdspell checkwinsize globstar histappend nocaseglob
do
shopt -s "$option" 2> /dev/null
done
}
bashrc_customize_paths() {
# Find out where Homebrew performs installations. If Homebrew is not
# installed (e.g. running on Linux), assume /usr/local for our
# installations.
local prefix=/usr/local
if command -v brew &>/dev/null; then
prefix=$(brew --prefix)
fi
# Prevent path_helper from messing with the PATH when starting tmux.
# See: https://superuser.com/a/583502
if [ "$(uname)" == "Darwin" ]; then
PATH=""
source /etc/profile
fi
# Add custom bin dirs to PATH if they exist and are not already in PATH.
while read p; do
if [ -d "$p" ] && [[ ":$PATH:" != *":$p:"* ]]; then
PATH="$p:$PATH"
fi
done <<EOS
$prefix/bin
$prefix/opt/man-db/libexec/bin
$prefix/opt/coreutils/libexec/gnubin
$prefix/opt/gnu-sed/libexec/gnubin
$HOME/.local/bin
$HOME/bin
EOS
export PATH
# Prepend custom man directories to MANPATH if they exist, so that we get
# correct man page entries when multiple versions of a command are
# available.
MANPATH=$(MANPATH= manpath)
while read p; do
if [ -d "$p" ] && [[ ":$MANPATH:" != *":$p:"* ]]; then
MANPATH="$p:$MANPATH"
fi
done <<EOS
$prefix/share/man
$prefix/opt/man-db/libexec/man
$prefix/opt/coreutils/libexec/gnuman
$prefix/opt/gnu-sed/libexec/gnuman
$HOME/.local/share/man
EOS
export MANPATH
}
bashrc_update_colors() {
export BACKGROUND="$1"
if [ -n "$TMUX" ] && [ -f "$HOME/.tmux.conf" ]; then
tmux set-environment -g BACKGROUND "$BACKGROUND"
tmux source-file "$HOME/.tmux.conf"
fi
bashrc_customize_terminal_colors
bashrc_customize_prompt
bashrc_customize_ls
}
bashrc_customize_aliases() {
alias light='bashrc_update_colors "light"'
alias dark='bashrc_update_colors "dark"'
# Make `ls` group directories first if supported.
if ls --group-directories-first >/dev/null 2>&1; then
alias ls="ls -hF --group-directories-first --color=auto" # GNU
else
alias ls="ls -hF -G" # BSD
fi
# Force `ls` to use color output (e.g. for piping into `less`).
if ls --color=auto >/dev/null 2>&1; then
alias lsc="ls --color=always" # GNU
else
alias lsc="/usr/bin/env CLICOLOR_FORCE=1 ls" # BSD
fi
alias la="ls -a"
alias ll="ls -l"
alias llc="lsc -l"
alias lla="ls -la"
alias llac="lsc -la"
alias grep="grep --color=auto";
alias egrep="egrep --color=auto";
alias fgrep="fgrep --color=auto";
alias path='echo $PATH | tr -s ":" "\n"'
alias mpath='echo $MANPATH | tr -s ":" "\n"'
alias tree="tree -F --dirsfirst"
alias tra="tree -a"
alias trl="tree -ugsh" # like ls -l (prints owner, group, human size)
alias trla="trl -a"
alias trac="tra -C"
alias trlc="trl -C"
alias trlac="trla -C"
}
# Send an OSC (Operating System Commmand) to the terminal.
if [ -n "$TMUX" ]; then
# http://permalink.gmane.org/gmane.comp.terminal-emulators.tmux.user/1324
bashrc_send_term_osc() { printf '\033Ptmux;\033\033]%s\007\033\\' "$1"; }
# bashrc_send_term_osc() { printf '\033Ptmux;\033\033]%s\033\033\\\033\\' "$1"; }
elif [ "${TERM%%[-.]*}" = "screen" ]; then
# GNU screen (screen, screen-256color, screen-256color-bce)
bashrc_send_term_osc() { printf '\033P\033]%s\007\033\\' "$1"; }
else
bashrc_send_term_osc() { printf '\033]%s\033\\' "$1"; }
fi
bashrc_customize_terminal_colors() {
if [ "$TERM_PROGRAM" = "Apple_Terminal" ]; then
echo "tell application \"Terminal\" to set current settings of selected tab of front window to settings set \"solarized-$BACKGROUND\"" | osascript
return
fi
# Solarize the terminal:
# - 4;n;#rrggbb (e.g. https://github.com/mintty/mintty/wiki/Tips#changing-colours)
# - Colors from http://ethanschoonover.com/solarized
bashrc_send_term_osc "4;0;#$Base02_RGB"
bashrc_send_term_osc "4;1;#$Red_RGB"
bashrc_send_term_osc "4;2;#$Green_RGB"
bashrc_send_term_osc "4;3;#$Yellow_RGB"
bashrc_send_term_osc "4;4;#$Blue_RGB"
bashrc_send_term_osc "4;5;#$Magenta_RGB"
bashrc_send_term_osc "4;6;#$Cyan_RGB"
bashrc_send_term_osc "4;7;#$Base2_RGB"
bashrc_send_term_osc "4;8;#$Base03_RGB"
bashrc_send_term_osc "4;9;#$Orange_RGB"
bashrc_send_term_osc "4;10;#$Base01_RGB"
bashrc_send_term_osc "4;11;#$Base00_RGB"
bashrc_send_term_osc "4;12;#$Base0_RGB"
bashrc_send_term_osc "4;13;#$Violet_RGB"
bashrc_send_term_osc "4;14;#$Base1_RGB"
bashrc_send_term_osc "4;15;#$Base3_RGB"
if [ "$BACKGROUND" = "dark" ]; then
local background="$Base03_RGB"
local foreground="$Base1_RGB"
else
local background="$Base2_RGB"
local foreground="$Base02_RGB"
fi
if [ -n "$ITERM_SESSION_ID" ]; then
# iTerm2: Pnrrggbb (http://iterm2.com/documentation-escape-codes.html)
bashrc_send_term_osc "Pg$foreground" # Foreground
bashrc_send_term_osc "Pi$foreground" # Bold
bashrc_send_term_osc "Ph$background" # Background
bashrc_send_term_osc "Pj$Base01_RGB" # Selection
bashrc_send_term_osc "Pk$Base2_RGB" # Selected text
bashrc_send_term_osc "Pl$Red_RGB" # Cursor
bashrc_send_term_osc "Pm$Red_RGB" # Cursor text
else
bashrc_send_term_osc "10;#$foreground" # Foreground
bashrc_send_term_osc "11;#$background" # Background
bashrc_send_term_osc "12;#$Red_RGB" # Cursor
fi
}
bashrc_set_prompt() {
local exit_code=$?
local level=$SHLVL
local prompt=$(printf '\$%.0s' $(seq 1 $level))
local color="$Cyan"
if [ $EUID -eq 0 ]; then
# root user
prompt=$(printf '#%.0s' $(seq 1 $level))
color="$Orange"
elif [ -n "$SSH_CLIENT" ]; then
# SSH connection
color="$Yellow"
fi
local user_host_color="\[\033[${color}m\]"
local pwd_color="\[\033[${Blue}m\]"
local exit_code_color="\[\033[${Magenta}m\]"
local git_color="\[\033[${Green}m\]"
local default_color="\[\033[0m\]"
PS1="\n[" # [
PS1+="$user_host_color\u@\h " # user @ host
PS1+="$pwd_color\w" # pwd
PS1+="$git_color$(__git_ps1 ' %s')" # git status (only if in repo)
PS1+="$default_color" # back to default color
PS1+="]\n" # ]
if [[ $exit_code != 0 ]]; then
PS1+="$exit_code_color$exit_code " # last exit code if non-zero
PS1+="$default_color" # back to default color
fi
PS1+="$prompt " # prompt
}
bashrc_customize_prompt() {
export GIT_PS1_SHOWDIRTYSTATE=1
export GIT_PS1_SHOWSTASHSTATE=1
export GIT_PS1_SHOWUNTRACKEDFILES=1
export GIT_PS1_SHOWUPSTREAM="verbose"
export PROMPT_COMMAND="bashrc_set_prompt"
export PS2=". "
}
bashrc_customize_ls() {
local ls_colors="$HOME/.config/dircolors/solarized-$BACKGROUND"
if type dircolors &> /dev/null && [ -f $ls_colors ]; then
eval "$(dircolors $ls_colors)"
fi
}
# Print the solarized palette (for testing)
solarized() {
local names=(Base02 Red Green Yellow Blue Magenta Cyan Base2
Base03 Orange Base01 Base00 Base0 Violet Base1 Base3)
for i in 1 9 3 2 6 4 13 5 8 0 10 11 12 14 7 15; do
local name=${names[i]}
local name_rgb=${name}_RGB
local code=${!name} rgb=${!name_rgb}
echo -e "\x1b[48;5;${i}m \033[0m \033[${code}m#$rgb $code $name ($i)"
done
}
# Combined mkdir and cd
mkcd() { mkdir -p -- "$1" && cd -P -- "$1"; }
# Colorized `man`
man() {
if [ "$BACKGROUND" = "dark" ]; then
local standout="$Base02;44" bold="$Yellow" underline="$Base3;4"
else
local standout="$Base02;46" bold="$Blue" underline="$Base00;4"
fi
env \
LESS_TERMCAP_so=$(echo -ne "\033[${standout}m") \
LESS_TERMCAP_md=$(echo -ne "\033[${bold}m") \
LESS_TERMCAP_us=$(echo -ne "\033[${underline}m") \
LESS_TERMCAP_se=$'\033[0m' \
LESS_TERMCAP_me=$'\033[0m' \
LESS_TERMCAP_ue=$'\033[0m' \
GROFF_NO_SGR=1 \
man "$@"
}
# Apply customizations
stty -ixon # disable ctrl-s and ctrl-q
bashrc_customize_environment
bashrc_customize_shell_options
bashrc_customize_paths
bashrc_customize_aliases
bashrc_customize_terminal_colors
bashrc_customize_prompt
bashrc_customize_ls
# Source any available completion helpers
if [ -d /usr/local/etc/bash_completion.d ]; then
for f in /usr/local/etc/bash_completion.d/*; do
source "$f"
done
fi
# Source a local bashrc if available
if [ -f "$HOME/.bashrc.local" ]; then
source "$HOME/.bashrc.local"
fi