.bashrc

   1 #!/bin/bash
   2 # ~/.bashrc: executed by bash(1) for non-login shells.
   3 # A basically sane bash environment.
   4 # Resources:
   5 # - https://github.com/rtomayko/dotfiles/blob/rtomayko/.bashrc
   6
   7 # ---------------------------------------------------------------------------
   8 #  BASICS
   9 # ---------------------------------------------------------------------------
  10
  11 # short-circuit for non-interactive sessions
  12 [ -z "$PS1" ] && return
  13
  14 # the basics
  15 : ${HOME=~}
  16 : ${LOGNAME=$(id -un)}
  17 : ${UNAME=$(uname)}
  18 # strip OS type and version under Cygwin (e.g. CYGWIN_NT-5.1 => Cygwin)
  19 UNAME=${UNAME/CYGWIN_*/Cygwin}
  20
  21 # complete hostnames from this file
  22 HOSTFILE=~/.ssh/known_hosts
  23
  24 # readline config
  25 INPUTRC=~/.inputrc
  26
  27 # if current $TERM isn't valid, fall-back to TERM=xterm-color or TERM=xterm
  28 case $(tput colors 2>&1) in
  29     tput* )
  30         export TERM=xterm-color
  31         case $(tput colors 2>&1) in
  32             tput* )
  33                 export TERM=xterm
  34                 ;;
  35         esac
  36         ;;
  37 esac
  38
  39 # ---------------------------------------------------------------------------
  40 #  SHELL OPTIONS
  41 # ---------------------------------------------------------------------------
  42
  43 # notify of bg job completion immediately
  44 set -o notify
  45
  46 # shell opts. see bash(1) for details
  47 shopt -s cdspell >/dev/null 2>&1
  48 shopt -s checkjobs >/dev/null 2>&1
  49 shopt -s checkwinsize >/dev/null 2>&1
  50 shopt -s extglob >/dev/null 2>&1
  51 shopt -s histappend >/dev/null 2>&1
  52 shopt -s hostcomplete >/dev/null 2>&1
  53 shopt -s interactive_comments >/dev/null 2>&1
  54 shopt -u mailwarn >/dev/null 2>&1
  55 shopt -s no_empty_cmd_completion >/dev/null 2>&1
  56
  57 # don't check for new mail
  58 unset MAILCHECK
  59
  60 # disable core dumps
  61 ulimit -S -c 0
  62
  63 # default umask
  64 umask 0022
  65
  66 # ---------------------------------------------------------------------------
  67 # PATH
  68 # ---------------------------------------------------------------------------
  69
  70 unset path_start path_end manpath_start manpath_end
  71
  72 # make sure $MANPATH has some sane defaults
  73 MANPATH="/usr/share/man:/usr/local/share/man:$MANPATH"
  74
  75 # include the various sbin's along with /usr/local/bin
  76 PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin"
  77 PATH="/usr/local/bin:$PATH"
  78
  79 # use $HOME specific bin and sbin
  80 path_start="$path_start:$HOME/bin"
  81 test -d "$HOME/sbin" && path_start="$path_start:$HOME/sbin"
  82
  83 # macOS homebrew
  84 if [ -x "/opt/homebrew/bin/brew" ]; then
  85     eval "$(/opt/homebrew/bin/brew shellenv)"
  86     # include non-prefixed coreutils
  87     if [ -d "/opt/homebrew/opt/coreutils/libexec" ]; then
  88         path_start="/opt/homebrew/opt/coreutils/libexec/gnubin:$path_start"
  89         manpath_start="/opt/homebrew/opt/coreutils/libexec/gnuman:$manpath_start"
  90     fi
  91 fi
  92
  93 # SmartOS: local pkgin binaries
  94 if [ -d "/opt/local" ]; then
  95     path_start="$path_start:/opt/local/sbin:/opt/local/bin"
  96     manpath_start="$manpath_start:/opt/local/man"
  97 fi
  98 # SmartOS: local custom scripts
  99 if [ -d "/opt/custom" ]; then
 100     path_start="$path_start:/opt/custom/sbin:/opt/custom/bin"
 101     manpath_start="$manpath_start:/opt/custom/man"
 102 fi
 103 # SmartOS: SDC
 104 if [ -d "/smartdc" ]; then
 105     path_start="$path_start:/smartdc/bin:/opt/smartdc/bin:/opt/smartdc/agents/bin"
 106     manpath_start="$manpath_start:/smartdc/man"
 107 fi
 108 # SmartOS: native binaries, for OS/LX zones
 109 if [ -d "/native" ]; then
 110     path_end="$path_end:/native/usr/sbin:/native/usr/bin:/native/sbin:/native/bin"
 111     manpath_end="$manpath_end:/native/usr/share/man"
 112 fi
 113
 114 # python pip --user
 115 for python in "python" "python2" "python3"; do
 116     if [ -n "$(type -P $python)" ]; then
 117         pybin="$($python -m site --user-base)/bin"
 118         test -d "$pybin" && path_end="$path_end:$pybin"
 119     fi
 120 done
 121 unset python pybin
 122
 123 PATH="$path_start:$PATH:$path_end"
 124 MANPATH="$manpath_start:$MANPATH:$manpath_end"
 125 unset path_start path_end manpath_start manpath_end
 126
 127 # ---------------------------------------------------------------------------
 128 # ENVIRONMENT CONFIGURATION
 129 # ---------------------------------------------------------------------------
 130
 131 # detect interactive shell
 132 case "$-" in
 133     *i*) INTERACTIVE=yes ;;
 134     *)   unset INTERACTIVE ;;
 135 esac
 136
 137 # detect login shell
 138 case "$0" in
 139    -*) LOGIN=yes ;;
 140    *)  unset LOGIN ;;
 141 esac
 142
 143 # enable en_US locale w/ utf-8 encodings if not already
 144 # configured
 145 : ${LANG:="en_US.UTF-8"}
 146 : ${LANGUAGE:="en"}
 147 : ${LC_CTYPE:="en_US.UTF-8"}
 148 : ${LC_ALL:="en_US.UTF-8"}
 149 export LANG LANGUAGE LC_CTYPE LC_ALL
 150
 151 # ignore backups, CVS directories, python bytecode, vim swap files
 152 FIGNORE="~:CVS:#:.pyc:.swp:.swa:apache-solr-*"
 153
 154 # history stuff
 155 HISTCONTROL=ignoreboth
 156 HISTFILESIZE=10000
 157 HISTSIZE=10000
 158
 159 # ---------------------------------------------------------------------------
 160 # PAGER / EDITOR
 161 # ---------------------------------------------------------------------------
 162
 163 # see what we have to work with ...
 164 HAVE_VIM=$(command -v vim)
 165
 166 # EDITOR
 167 test -n "$HAVE_VIM" &&
 168     EDITOR=vim ||
 169     EDITOR=vi
 170 export EDITOR
 171
 172 # PAGER
 173 if test -n "$(command -v less)" ; then
 174     PAGER="less"
 175     MANPAGER="less"
 176     LESS="-FiRX"
 177     export LESS
 178 else
 179     PAGER=more
 180     MANPAGER="$PAGER"
 181 fi
 182 export PAGER MANPAGER
 183
 184 # ---------------------------------------------------------------------------
 185 # PROMPT
 186 # ---------------------------------------------------------------------------
 187
 188 # http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
 189
 190 if [ "$UID" = 0 ]; then
 191     # root
 192     PS_C1="\[\033[1;31m\]"  # red
 193     PS_C2="\[\033[0;37m\]"  # grey
 194     PS_P="#"
 195 else
 196     case "$UNAME" in
 197         Cygwin)
 198             PS_C1="\[\033[0;32m\]"  # green
 199             PS_C2="\[\033[0;37m\]"  # grey
 200             ;;
 201         Darwin)
 202             PS_C1="\[\033[1;97m\]"  # white
 203             PS_C2="\[\033[0;37m\]"  # grey
 204             ;;
 205         SunOS)
 206             PS_C1="\[\033[1;96m\]"  # cyan
 207             PS_C2="\[\033[0;36m\]"  # cyan
 208             ;;
 209         *)
 210             PS_C1="\[\033[1;93m\]"  # yellow
 211             PS_C2="\[\033[0;33m\]"  # brown
 212     esac
 213     PS_P="\$"
 214 fi
 215
 216 prompt_simple() {
 217     unset PROMPT_COMMAND
 218     PS1="[\u@\h:\w]\$ "
 219     PS2="> "
 220 }
 221
 222 prompt_compact() {
 223     unset PROMPT_COMMAND
 224     PS1="${PS_C1}${PS_P}\[\033[0m\] "
 225     PS2="> "
 226 }
 227
 228 prompt_color() {
 229     # if git and the git bash_completion scripts are installed, use __git_ps1()
 230     # to show current branch info.
 231     # - never show branch info for $HOME (dotfiles) repo.
 232     # - optionally hide branch info for git repo's with `bash.hidePrompt`
 233     #   config flag set. use the following to exclude a given repo:
 234     #     `git config --local --bool --add bash.hidePrompt true`
 235     if [ -n "$(type -P git)" -a "$(type -t __git_ps1)" = "function" ]; then
 236         home_canonical="$(test -n "$(type -P realpath)" && realpath $HOME || echo $HOME)"
 237         PS_GIT='$(test -n "$(__git_ps1 %s)" &&
 238                   test "$(git rev-parse --show-toplevel)" != "$home_canonical" &&
 239                   test "$(git config --bool bash.hidePrompt)" != "true" &&
 240                   __git_ps1 "{\[\033[0;40;36m\]%s\[\033[0;90m\]}")'
 241         export GIT_PS1_SHOWDIRTYSTATE=1
 242     fi
 243     PS1="\[\033[0;90m\][${PS_C1}\u@\h\[\033[0m\]\[\033[0;90m\]:${PS_C2}\w\[\033[0;90m\]]${PS_GIT}${PS_P}\[\033[0m\] "
 244     PS2="> "
 245 }
 246
 247 # ---------------------------------------------------------------------------
 248 # ALIASES
 249 # ---------------------------------------------------------------------------
 250
 251 # 'ls' helpers
 252 alias ll="ls -l"
 253 alias l.="ls -d .*"
 254 alias ll.="ls -ld .*"
 255 alias lla="ls -la"
 256
 257 # use 'git diff --no-index' as a prettier 'diff' alternative (if available)
 258 test -n "$(type -P git)" && alias diff="git diff --no-index"
 259
 260 # alias 'vi' to 'vim' if Vim is installed
 261 test -n "$(type -P vim)" && alias vi='vim'
 262
 263 # alias csh-style "rebash" to bash equivalent
 264 alias rehash="hash -r"
 265
 266 # svn-wrapper
 267 alias svn=svn-wrapper
 268
 269 # docker helpers
 270 if [ -n "$(type -P docker)" ]; then
 271     alias docker-ps="docker ps -a --format \"table {{.ID}}\t{{.Names}}\t{{.State}}\t{{.Status}}\t{{.Networks}}\""
 272     alias docker-tail="docker logs -tf --tail 50"
 273     alias docker-top="docker run --name ctop  -it --rm -v /var/run/docker.sock:/var/run/docker.sock quay.io/vektorlab/ctop"
 274     alias ctop="docker-top"
 275 fi
 276
 277 if [ "$UNAME" = SunOS ]; then
 278     # Solaris: use GNU versions of coreutils
 279     test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep"
 280     test -x /usr/gnu/bin/sed  && alias sed="/usr/gnu/bin/sed"
 281     test -x /usr/gnu/bin/awk  && alias awk="/usr/gnu/bin/awk"
 282 fi
 283
 284 # ---------------------------------------------------------------------------
 285 # BASH COMPLETION
 286 # ---------------------------------------------------------------------------
 287
 288 test -z "$BASH_COMPLETION" && {
 289     bash=${BASH_VERSION%.*}; bmajor=${bash%.*}; bminor=${bash#*.}
 290     test -n "$PS1" && test $bmajor -gt 1 && {
 291         # search for a bash_completion file to source
 292         for f in /usr/local/etc/bash_completion \
 293                  /usr/pkg/etc/bash_completion \
 294                  /opt/local/etc/bash_completion \
 295                  /etc/bash_completion \
 296                  /etc/bash/bash_completion
 297         do
 298             test -f $f && {
 299                 . $f
 300                 break
 301             }
 302         done
 303     }
 304     unset bash bmajor bminor
 305 }
 306
 307 # restore some key environment variables which may have been unset
 308 # by bash_completion script
 309 : ${HOME=~}
 310 : ${LOGNAME=$(id -un)}
 311 : ${UNAME=$(uname)}
 312
 313 # override and disable tilde expansion
 314 _expand() {
 315     return 0
 316 }
 317
 318 # ---------------------------------------------------------------------------
 319 # LS AND DIRCOLORS
 320 # ---------------------------------------------------------------------------
 321
 322 # we always pass these to ls(1)
 323 LS_COMMON="-p"
 324
 325 # if the dircolors utility is available, set that up for ls
 326 dircolors="$(type -P gdircolors dircolors | head -1)"
 327 test -n "$dircolors" && {
 328     COLORS=/etc/DIR_COLORS
 329     test -e "/etc/DIR_COLORS.$TERM"   && COLORS="/etc/DIR_COLORS.$TERM"
 330     test -e "$HOME/.dircolors"        && COLORS="$HOME/.dircolors"
 331     test ! -e "$COLORS"               && COLORS=
 332     eval `$dircolors --sh $COLORS`
 333 }
 334 unset dircolors
 335
 336 # enable color ls output if available
 337 test -n "$COLORS" &&
 338     LS_COMMON="--color=auto $LS_COMMON"
 339
 340 # setup the main ls alias if we've established common args
 341 test -n "$LS_COMMON" &&
 342     alias ls="command ls $LS_COMMON"
 343
 344 # setup color grep output if available
 345 if [ -n "$COLORS" ]; then
 346     case "$UNAME" in
 347         "Darwin")
 348             export GREP_COLOR='1;32'  # BSD grep
 349             ;;
 350         *)
 351             export GREP_COLORS='fn=36:ln=33:ms=1;32'  # GNU grep
 352             ;;
 353     esac
 354     case "$UNAME" in
 355         "SunOS")
 356             test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep --color=always"
 357             test -x /opt/local/bin/grep && alias grep="/opt/local/bin/grep --color=always"
 358             ;;
 359         *)
 360             alias grep="command grep --color=always"
 361             ;;
 362     esac
 363 fi
 364
 365 # ---------------------------------------------------------------------------
 366 # MISC FUNCTIONS
 367 # ---------------------------------------------------------------------------
 368
 369 # set 'screen' window title
 370 settitle_screen() {
 371     printf "\033k%s\033\\" "$@"
 372 }
 373 # set 'xterm' window title
 374 settitle_window() {
 375     printf "\033]0;%s\007" "$@"
 376 }
 377
 378 # ---------------------------------------------------------------------------
 379 # PATH MANIPULATION FUNCTIONS
 380 # ---------------------------------------------------------------------------
 381
 382 # Usage: pls [<var>]
 383 # List path entries of PATH or environment variable <var>.
 384 pls () { eval echo \$${1:-PATH} | tr ':' '\n'; }
 385
 386 # Usage: ppop [-n <num>] [<var>]
 387 # Pop <num> entries off the end of PATH or environment variable <var>.
 388 ppop () {
 389     local n=1
 390     [ "$1" = "-n" ] && { n=$2; shift 2; }
 391     local i=0 var=${1:-PATH}
 392     local list=$(eval echo \$$var)
 393     while [ $i -lt $n ]; do
 394         list=${list%:*}
 395         i=$(( i + 1 ))
 396     done
 397     eval "$var='$list'"
 398 }
 399
 400 # Usage: ppush <path> [<var>]
 401 # Push an entry onto the end of PATH or enviroment variable <var>.
 402 ppush () {
 403     local var=${2:-PATH}
 404     local list=$(eval echo \$$var)
 405     local i=0 dir=""
 406     IFS=':' read -a dirs <<< "$1"
 407     for ((i=0; i<${#dirs[@]}; i++)); do
 408         dir=$(eval echo "${dirs[$i]}")
 409         [ ! -d "$dir" ] && continue
 410         [ -n "$list" ] && list="$list:$dir" || list="$dir"
 411     done
 412     eval "$var='$list'"
 413 }
 414
 415 # Usage: pinsert <path> [<var>]
 416 # Push an entry onto the start of PATH or enviroment variable <var>.
 417 pinsert () {
 418     local var=${2:-PATH}
 419     local list=$(eval echo \$$var)
 420     local i=0 dir=""
 421     IFS=':' read -a dirs <<< "${1}"
 422     for ((i=${#dirs[@]}-1; i>=0; i--)); do
 423         dir=$(eval echo "${dirs[$i]}")
 424         [ ! -d "$dir" ] && continue
 425         [ -n "$list" ] && list="$dir:$list" || list="$dir"
 426     done
 427     eval "$var='$list'"
 428 }
 429
 430 # Usage: prm <path> [<var>]
 431 # Remove <path> from PATH or environment variable <var>.
 432 prm () { eval "${2:-PATH}='$(pls $2 | grep -v "^$1\$" | tr '\n' ':')'"; }
 433
 434 # Usage: puniq [<pathlist>]
 435 # Remove duplicate entries from a PATH style value while retaining
 436 # the original order. Use PATH if no <path> is given.
 437 #
 438 # Example:
 439 #   $ puniq /usr/bin:/usr/local/bin:/usr/bin
 440 #   /usr/bin:/usr/local/bin
 441 puniq () { echo "$1" | tr ':' '\n' | grep -v "^$" | nl | sort -u -k 2,2 | sort -n | cut -f 2- | paste -s -d ':' -; }
 442
 443 # ---------------------------------------------------------------------------
 444 # USER SHELL ENVIRONMENT
 445 # ---------------------------------------------------------------------------
 446
 447 # source ~/.shenv now if it exists
 448 test -r ~/.shenv &&
 449     . ~/.shenv
 450
 451 # condense PATH entries
 452 PATH=$(puniq "$PATH")
 453 MANPATH=$(puniq "$MANPATH")
 454
 455 # use the color prompt by default when interactive
 456 test -n "$PS1" &&
 457     prompt_color
 458
 459 # ripgrep
 460 export RIPGREP_CONFIG_PATH="$HOME/.ripgreprc"
 461
 462 # fzf
 463 export FZF_DEFAULT_COMMAND="rg --files --hidden --follow --color=never 2> /dev/null"
 464 export FZF_DEFAULT_OPTS='--bind J:down,K:up --reverse --ansi --multi'
 465
 466 # ---------------------------------------------------------------------------
 467 # MOTD / FORTUNE
 468 # ---------------------------------------------------------------------------
 469
 470 test -n "$INTERACTIVE" -a -n "$LOGIN" && {
 471     # get current uname and uptime (if exists on this host)
 472     # strip any leading whitespace from uname and uptime commands
 473     t_uname="$(test -n "`type -P uname`" && uname -npsr | sed -e 's/^\s+//')"
 474     t_uptime="$(test -n "`type -P uptime`" && uptime | sed -e 's/^\s+//')"
 475     if [ -n "$t_uname" ] || [ -n "$t_uptime" ]; then
 476         echo " --"
 477         test -n "$t_uname" && echo $t_uname
 478         test -n "$t_uptime" && echo $t_uptime
 479         echo " --"
 480     fi
 481     unset t_uname t_uptime
 482 }
 483
 484 # vim: ts=4 sts=4 shiftwidth=4 expandtab