dotfiles/bashrc at master · tdryer/dotfiles · GitHub

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# From Ubuntu's default bashrc: ###############################################

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
[ -z "$PS1" ] && return

# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth

# append to the history file, don't overwrite it
shopt -s histappend

# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000

# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize

# make less more friendly for non-text input files, see lesspipe(1)
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "$debian_chroot" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    alias ls='ls --color=auto'
    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi

# handy ls alias
alias ll='ls -l --classify --human-readable'

alias ip='ip --color'

# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if [ -f /etc/bash_completion ] && ! shopt -oq posix; then
    . /etc/bash_completion
fi

# Custom stuff: ###############################################################

# use coloured bash prompt
color_prompt=yes

# set custom bash prompt with current git branch and number of jobs
# (requires git bash_completion for __git_ps1)
GIT_PS1_SHOWDIRTYSTATE=1
GIT_PS1_STATESEPARATOR=""
PROMPT_COMMAND='hasjobs=$(jobs -p)'
PS1='${hasjobs:+(\j)}$(__git_ps1 "(%s)")\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '

# if this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
    ;;
*)
    ;;
esac

# prevent accidentally closing shell by requiring ctrl+d twice consecutively to exit
export IGNOREEOF=1

# Tell fzf to use ag to list files.
export FZF_DEFAULT_COMMAND='ag --files-with-matches --nocolor --hidden --ignore .git -g ""'

if [ $TERM = "xterm-kitty" ]; then
    # Override ctrl+l to use kitty escape code to clear the screen while
    # keeping its contents in scrollback buffer, emulating the behaviour of
    # gnome-terminal.
    bind -x '"\C-l": printf "\e[H\e[22J"'

    # Work around remote hosts not having kitty terminfo.
    alias ssh='TERM=xterm-256color ssh'
fi

alias vim='nvim'

# List TCP or UDP listing ports, excluding localhost
alias open-ports='sudo ss -lnptu "! ( src 127.0.0.0/8 or src [::1] )"'

# Convert markdown to html and open in browser
md2html() {
    if [ -z "$1" ]; then
        echo "Usage: md2html <input.md> [output.html]"
        return 1
    fi
    local input="$1"
    local output="${2:-$(mktemp /tmp/md2html_XXXXXX.html)}"
    local css="https://cdnjs.cloudflare.com/ajax/libs/github-markdown-css/5.8.1/github-markdown.min.css"
    local style="box-sizing: border-box; min-width: 200px; max-width: 980px; margin: 0 auto; padding: 45px;"
    pandoc --standalone --css "$css" --metadata title="$(basename "$input")" "$input" | \
        sed "s/<body>/<body class=\"markdown-body\" style=\"$style\">/" > "$output" && \
        open "$output"
}