.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 "$PS1" ] && return
  13
  14 # the basics
  15 PATH="/usr/local/bin:/bin:/usr/bin:/usr/sbin:/usr/local/sbin:/sbin:$PATH"
  16 : ${HOME=~}
  17 : ${LOGNAME=$(id -un)}
  18 : ${UNAME=$(uname)}
  19 # strip OS type and version under Cygwin (e.g. CYGWIN_NT-5.1 => Cygwin)
  20 UNAME=${UNAME/CYGWIN_*/Cygwin}
  21
  22 # complete hostnames from this file
  23 HOSTFILE=~/.ssh/known_hosts
  24
  25 # readline config
  26 INPUTRC=~/.inputrc
  27
  28 # if current $TERM isn't valid, fall-back to TERM=xterm-color or TERM=xterm
  29 case $(tput colors 2>&1) in
  30     tput* )
  31         export TERM=xterm-color
  32         case $(tput colors 2>&1) in
  33             tput* )
  34                 export TERM=xterm
  35                 ;;
  36         esac
  37         ;;
  38 esac
  39
  40 # ---------------------------------------------------------------------------
  41 #  SHELL OPTIONS
  42 # ---------------------------------------------------------------------------
  43
  44 # notify of bg job completion immediately
  45 set -o notify
  46
  47 # shell opts. see bash(1) for details
  48 shopt -s cdspell >/dev/null 2>&1
  49 shopt -s checkjobs >/dev/null 2>&1
  50 shopt -s checkwinsize >/dev/null 2>&1
  51 shopt -s extglob >/dev/null 2>&1
  52 shopt -s histappend >/dev/null 2>&1
  53 shopt -s hostcomplete >/dev/null 2>&1
  54 shopt -s interactive_comments >/dev/null 2>&1
  55 shopt -u mailwarn >/dev/null 2>&1
  56 shopt -s no_empty_cmd_completion >/dev/null 2>&1
  57
  58 # don't check for new mail
  59 unset MAILCHECK
  60
  61 # disable core dumps
  62 ulimit -S -c 0
  63
  64 # default umask
  65 umask 0022
  66
  67 # ---------------------------------------------------------------------------
  68 # PATH
  69 # ---------------------------------------------------------------------------
  70
  71 # make sure $MANPATH has some sane defaults
  72 MANPATH="/usr/share/man:/usr/local/share/man:$MANPATH"
  73
  74 # include the various sbin's along with /usr/local/bin
  75 PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin"
  76 PATH="/usr/local/bin:$PATH"
  77
  78 # use $HOME specific bin and sbin
  79 path_start="$path_start:$HOME/bin"
  80 test -d "$HOME/sbin" && path_start="$path_start:$HOME/sbin"
  81
  82 # macOS homebrew: include non-prefixed coreutils
  83 if [ -d "/usr/local/opt/coreutils/libexec" ]; then
  84     path_start="$path_start:/usr/local/opt/coreutils/libexec/gnubin"
  85     manpath_start="$manpath_start:/usr/local/opt/coreutils/libexec/gnuman"
  86 fi
  87
  88 # SmartOS: local pkgin binaries
  89 if [ -d "/opt/local" ]; then
  90     path_start="$path_start:/opt/local/sbin:/opt/local/bin"
  91     manpath_start="$manpath_start:/opt/local/man"
  92 fi
  93 # SmartOS: local custom scripts
  94 if [ -d "/opt/custom" ]; then
  95     path_start="$path_start:/opt/custom/sbin:/opt/custom/bin"
  96     manpath_start="$manpath_start:/opt/custom/man"
  97 fi
  98 # SmartOS: SDC
  99 if [ -d "/smartdc" ]; then
 100     path_start="$path_start:/smartdc/bin:/opt/smartdc/bin:/opt/smartdc/agents/bin"
 101     manpath_start="$manpath_start:/smartdc/man"
 102 fi
 103 # SmartOS: native binaries, for OS/LX zones
 104 if [ -d "/native" ]; then
 105     path_end="$path_end:/native/usr/sbin:/native/usr/bin:/native/sbin:/native/bin"
 106     manpath_end="$manpath_end:/native/usr/share/man"
 107 fi
 108
 109 # python pip --user
 110 for python in "python" "python2" "python3"; do
 111     if [ -n "$(type -P $python)" ]; then
 112         pybin="$($python -m site --user-base)/bin"
 113         test -d "$pybin" && path_end="$path_end:$pybin"
 114     fi
 115 done
 116 unset python pybin
 117
 118 PATH="$path_start:$PATH:$path_end"
 119 MANPATH="$manpath_start:$MANPATH:$manpath_end"
 120 unset path_start path_end manpath_start manpath_end
 121
 122 # ---------------------------------------------------------------------------
 123 # ENVIRONMENT CONFIGURATION
 124 # ---------------------------------------------------------------------------
 125
 126 # detect interactive shell
 127 case "$-" in
 128     *i*) INTERACTIVE=yes ;;
 129     *)   unset INTERACTIVE ;;
 130 esac
 131
 132 # detect login shell
 133 case "$0" in
 134    -*) LOGIN=yes ;;
 135    *)  unset LOGIN ;;
 136 esac
 137
 138 # setup locale. Try to enable en_US locale w/ utf-8 encodings
 139 # (if not already configured), but do graceful fall-back.
 140 lclist=$(locale -a | grep en_US)
 141 if test -n "$(echo $lclist | grep UTF-8)"; then
 142     : ${LANG:="en_US.UTF-8"}
 143     : ${LANGUAGE:="en"}
 144     : ${LC_CTYPE:="en_US.UTF-8"}
 145     : ${LC_ALL:="en_US.UTF-8"}
 146 elif test -n "$(echo $lclist | grep utf8)"; then
 147     : ${LANG:="en_US.utf8"}
 148     : ${LANGUAGE:="en"}
 149     : ${LC_CTYPE:="en_US.utf8"}
 150     : ${LC_ALL:="en_US.utf8"}
 151 elif test -n "$(echo $lclist | grep ISO8859-1)"; then
 152     : ${LANG:="en_US.ISO8859-1"}
 153     : ${LANGUAGE:="en"}
 154     : ${LC_CTYPE:="en_US.ISO8859-1"}
 155     : ${LC_ALL:="en_US.ISO8859-1"}
 156 else
 157     : ${LANG:="en_US"}
 158     : ${LANGUAGE:="en"}
 159     : ${LC_CTYPE:="en_US"}
 160     : ${LC_ALL:="en_US"}
 161 fi
 162 export LANG LANGUAGE LC_CTYPE LC_ALL
 163 unset lclist
 164
 165 # ignore backups, CVS directories, python bytecode, vim swap files
 166 FIGNORE="~:CVS:#:.pyc:.swp:.swa:apache-solr-*"
 167
 168 # history stuff
 169 HISTCONTROL=ignoreboth
 170 HISTFILESIZE=10000
 171 HISTSIZE=10000
 172
 173 # ---------------------------------------------------------------------------
 174 # PAGER / EDITOR
 175 # ---------------------------------------------------------------------------
 176
 177 # see what we have to work with ...
 178 HAVE_VIM=$(command -v vim)
 179
 180 # EDITOR
 181 test -n "$HAVE_VIM" &&
 182     EDITOR=vim ||
 183     EDITOR=vi
 184 export EDITOR
 185
 186 # PAGER
 187 if test -n "$(command -v less)" ; then
 188     PAGER="less"
 189     MANPAGER="less"
 190     LESS="-FiRX"
 191     export LESS
 192 else
 193     PAGER=more
 194     MANPAGER="$PAGER"
 195 fi
 196 export PAGER MANPAGER
 197
 198 # ---------------------------------------------------------------------------
 199 # PROMPT
 200 # ---------------------------------------------------------------------------
 201
 202 # http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
 203
 204 if [ "$UID" = 0 ]; then
 205     # root
 206     PS_C1="\[\033[1;31m\]"  # red
 207     PS_C2="\[\033[0;37m\]"  # grey
 208     PS_P="#"
 209 else
 210     case "$UNAME" in
 211         Cygwin)
 212             PS_C1="\[\033[0;32m\]"  # green
 213             PS_C2="\[\033[0;37m\]"  # grey
 214             ;;
 215         Darwin)
 216             PS_C1="\[\033[1;97m\]"  # white
 217             PS_C2="\[\033[0;37m\]"  # grey
 218             ;;
 219         SunOS | AIX)
 220             PS_C1="\[\033[1;96m\]"  # cyan
 221             PS_C2="\[\033[0;36m\]"  # cyan
 222             ;;
 223         *)
 224             PS_C1="\[\033[1;93m\]"  # yellow
 225             PS_C2="\[\033[0;33m\]"  # brown
 226     esac
 227     PS_P="\$"
 228 fi
 229
 230 prompt_simple() {
 231     unset PROMPT_COMMAND
 232     PS1="[\u@\h:\w]\$ "
 233     PS2="> "
 234 }
 235
 236 prompt_compact() {
 237     unset PROMPT_COMMAND
 238     PS1="${PS_C1}${PS_P}\[\033[0m\] "
 239     PS2="> "
 240 }
 241
 242 prompt_color() {
 243     # if git and the git bash_completion scripts are installed, use __git_ps1()
 244     # to show current branch info.
 245     # - never show branch info for $HOME (dotfiles) repo.
 246     # - optionally hide branch info for git repo's with `bash.hidePrompt`
 247     #   config flag set. use the following to exclude a given repo:
 248     #     `git config --local --bool --add bash.hidePrompt true`
 249     if [ -n "$(type -P git)" -a "$(type -t __git_ps1)" = "function" ]; then
 250         home_canonical="$(test -n "$(type -P realpath)" && realpath $HOME || echo $HOME)"
 251         PS_GIT='$(test -n "$(__git_ps1 %s)" &&
 252                   test "$(git rev-parse --show-toplevel)" != "$home_canonical" &&
 253                   test "$(git config --bool bash.hidePrompt)" != "true" &&
 254                   __git_ps1 "{\[\033[0;40;36m\]%s\[\033[0;90m\]}")'
 255         export GIT_PS1_SHOWDIRTYSTATE=1
 256     fi
 257     PS1="\[\033[0;90m\][${PS_C1}\u@\h\[\033[0m\]\[\033[0;90m\]:${PS_C2}\w\[\033[0;90m\]]${PS_GIT}${PS_P}\[\033[0m\] "
 258     PS2="> "
 259 }
 260
 261 # ----------------------------------------------------------------------
 262 # SOLARIS SPECIFIC
 263 # ----------------------------------------------------------------------
 264
 265 if [ "$UNAME" = SunOS ]; then
 266     # use GNU versions of core utils
 267     test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep"
 268     test -x /usr/gnu/bin/sed  && alias sed="/usr/gnu/bin/sed"
 269     test -x /usr/gnu/bin/awk  && alias awk="/usr/gnu/bin/awk"
 270     test -x /usr/xpg4/bin/sed  && alias sed="/usr/xpg4/bin/sed"
 271     test -x /usr/xpg4/bin/awk  && alias awk="/usr/xpg4/bin/awk"
 272 fi
 273
 274 # ---------------------------------------------------------------------------
 275 # ALIASES
 276 # ---------------------------------------------------------------------------
 277
 278 # 'ls' helpers
 279 alias ll="ls -l"
 280 alias l.="ls -d .*"
 281 alias ll.="ls -ld .*"
 282 alias lla="ls -la"
 283
 284 # use 'git diff --no-index' as a prettier 'diff' alternative (if available)
 285 test -n "$(type -P git)" && alias diff="git diff --no-index"
 286
 287 # alias 'vi' to 'vim' if Vim is installed
 288 test -n "$(type -P vim)" && alias vi='vim'
 289
 290 # alias csh-style "rebash" to bash equivalent
 291 alias rehash="hash -r"
 292
 293 # svn-wrapper
 294 alias svn=svn-wrapper
 295
 296 # docker helpers
 297 if [ -n "$(type -P docker)" ]; then
 298     alias docker-ps="docker ps -a --format \"table {{.ID}}\t{{.Names}}\t{{.State}}\t{{.Status}}\t{{.Networks}}\""
 299     alias docker-tail="docker logs -tf --tail 50"
 300     alias docker-top="docker run --name ctop  -it --rm -v /var/run/docker.sock:/var/run/docker.sock quay.io/vektorlab/ctop"
 301     alias ctop="docker-top"
 302 fi
 303
 304 if [ "$UNAME" = SunOS ]; then
 305     # Solaris: use GNU versions of coreutils
 306     test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep"
 307     test -x /usr/gnu/bin/sed  && alias sed="/usr/gnu/bin/sed"
 308     test -x /usr/gnu/bin/awk  && alias awk="/usr/gnu/bin/awk"
 309 fi
 310
 311 # ---------------------------------------------------------------------------
 312 # BASH COMPLETION
 313 # ---------------------------------------------------------------------------
 314
 315 test -z "$BASH_COMPLETION" && {
 316     bash=${BASH_VERSION%.*}; bmajor=${bash%.*}; bminor=${bash#*.}
 317     test -n "$PS1" && test $bmajor -gt 1 && {
 318         # search for a bash_completion file to source
 319         for f in /usr/local/etc/bash_completion \
 320                  /usr/pkg/etc/bash_completion \
 321                  /opt/local/etc/bash_completion \
 322                  /etc/bash_completion \
 323                  /etc/bash/bash_completion
 324         do
 325             test -f $f && {
 326                 . $f
 327                 break
 328             }
 329         done
 330     }
 331     unset bash bmajor bminor
 332 }
 333
 334 # restore some key environment variables which may have been unset
 335 # by bash_completion script
 336 : ${HOME=~}
 337 : ${LOGNAME=$(id -un)}
 338 : ${UNAME=$(uname)}
 339
 340 # override and disable tilde expansion
 341 _expand() {
 342     return 0
 343 }
 344
 345 # ---------------------------------------------------------------------------
 346 # LS AND DIRCOLORS
 347 # ---------------------------------------------------------------------------
 348
 349 # we always pass these to ls(1)
 350 LS_COMMON="-p"
 351
 352 # if the dircolors utility is available, set that up for ls
 353 dircolors="$(type -P gdircolors dircolors | head -1)"
 354 test -n "$dircolors" && {
 355     COLORS=/etc/DIR_COLORS
 356     test -e "/etc/DIR_COLORS.$TERM"   && COLORS="/etc/DIR_COLORS.$TERM"
 357     test -e "$HOME/.dircolors"        && COLORS="$HOME/.dircolors"
 358     test ! -e "$COLORS"               && COLORS=
 359     # AIX (vx-track) has dircolors(1) but ls(1) doesn't support --color arg
 360     test "$UNAME" = "AIX"             && COLORS=
 361     eval `$dircolors --sh $COLORS`
 362 }
 363 unset dircolors
 364
 365 # enable color ls output if available
 366 test -n "$COLORS" &&
 367     LS_COMMON="--color=auto $LS_COMMON"
 368
 369 # setup the main ls alias if we've established common args
 370 test -n "$LS_COMMON" &&
 371     alias ls="command ls $LS_COMMON"
 372
 373 # setup color grep output if available
 374 if [ -n "$COLORS" ]; then
 375     case "$UNAME" in
 376         "SunOS")
 377             test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep --color=always"
 378             test -x /opt/local/bin/grep && alias grep="/opt/local/bin/grep --color=always"
 379             ;;
 380         *)
 381             alias grep="command grep --color=always"
 382             ;;
 383     esac
 384     # older versions of grep only support a singular highlight color
 385     export GREP_COLOR='1;32'
 386     # newer versions of grep have more flexible color configuration
 387     export GREP_COLORS='fn=36:ln=33:ms=1;32'
 388 fi
 389
 390 # ---------------------------------------------------------------------------
 391 # MISC FUNCTIONS
 392 # ---------------------------------------------------------------------------
 393
 394 # set 'screen' window title
 395 settitle_screen() {
 396     printf "\033k%s\033\\" "$@"
 397 }
 398 # set 'xterm' window title
 399 settitle_window() {
 400     printf "\033]0;%s\007" "$@"
 401 }
 402
 403 # push SSH public key to another box
 404 push_ssh_cert() {
 405     local _host
 406     test -f ~/.ssh/id_rsa.pub || ssh-keygen -t rsa -b 4096
 407     for _host in "$@";
 408     do
 409         echo $_host
 410         ssh $_host 'cat >> ~/.ssh/authorized_keys' < ~/.ssh/id_rsa.pub
 411     done
 412 }
 413
 414 # ---------------------------------------------------------------------------
 415 # PATH MANIPULATION FUNCTIONS
 416 # ---------------------------------------------------------------------------
 417
 418 # Usage: pls [<var>]
 419 # List path entries of PATH or environment variable <var>.
 420 pls () { eval echo \$${1:-PATH} | tr ':' '\n'; }
 421
 422 # Usage: ppop [-n <num>] [<var>]
 423 # Pop <num> entries off the end of PATH or environment variable <var>.
 424 ppop () {
 425     local n=1
 426     [ "$1" = "-n" ] && { n=$2; shift 2; }
 427     local i=0 var=${1:-PATH}
 428     local list=$(eval echo \$$var)
 429     while [ $i -lt $n ]; do
 430         list=${list%:*}
 431         i=$(( i + 1 ))
 432     done
 433     eval "$var='$list'"
 434 }
 435
 436 # Usage: ppush <path> [<var>]
 437 # Push an entry onto the end of PATH or enviroment variable <var>.
 438 ppush () {
 439     local var=${2:-PATH}
 440     local list=$(eval echo \$$var)
 441     local i=0 dir=""
 442     IFS=':' read -a dirs <<< "$1"
 443     for ((i=0; i<${#dirs[@]}; i++)); do
 444         dir=$(eval echo "${dirs[$i]}")
 445         [ ! -d "$dir" ] && continue
 446         [ -n "$list" ] && list="$list:$dir" || list="$dir"
 447     done
 448     eval "$var='$list'"
 449 }
 450
 451 # Usage: pinsert <path> [<var>]
 452 # Push an entry onto the start of PATH or enviroment variable <var>.
 453 pinsert () {
 454     local var=${2:-PATH}
 455     local list=$(eval echo \$$var)
 456     local i=0 dir=""
 457     IFS=':' read -a dirs <<< "${1}"
 458     for ((i=${#dirs[@]}-1; i>=0; i--)); do
 459         dir=$(eval echo "${dirs[$i]}")
 460         [ ! -d "$dir" ] && continue
 461         [ -n "$list" ] && list="$dir:$list" || list="$dir"
 462     done
 463     eval "$var='$list'"
 464 }
 465
 466 # Usage: prm <path> [<var>]
 467 # Remove <path> from PATH or environment variable <var>.
 468 prm () { eval "${2:-PATH}='$(pls $2 | grep -v "^$1\$" | tr '\n' ':')'"; }
 469
 470 # Usage: puniq [<pathlist>]
 471 # Remove duplicate entries from a PATH style value while retaining
 472 # the original order. Use PATH if no <path> is given.
 473 #
 474 # Example:
 475 #   $ puniq /usr/bin:/usr/local/bin:/usr/bin
 476 #   /usr/bin:/usr/local/bin
 477 puniq () { echo "$1" | tr ':' '\n' | grep -v "^$" | nl | sort -u -k 2,2 | sort -n | cut -f 2- | paste -s -d ':' -; }
 478
 479 # ---------------------------------------------------------------------------
 480 # USER SHELL ENVIRONMENT
 481 # ---------------------------------------------------------------------------
 482
 483 # source ~/.shenv now if it exists
 484 test -r ~/.shenv &&
 485     . ~/.shenv
 486
 487 # condense PATH entries
 488 PATH=$(puniq "$PATH")
 489 MANPATH=$(puniq "$MANPATH")
 490
 491 # use the color prompt by default when interactive
 492 test -n "$PS1" &&
 493     prompt_color
 494
 495 # fzf
 496 export FZF_DEFAULT_COMMAND='rg --files --no-ignore --hidden --follow -g "!{.git,node_modules,*.swp,.venv}/*" 2> /dev/null'
 497 export FZF_DEFAULT_OPTS='--bind J:down,K:up --reverse --ansi --multi'
 498
 499 # ---------------------------------------------------------------------------
 500 # MOTD / FORTUNE
 501 # ---------------------------------------------------------------------------
 502
 503 test -n "$INTERACTIVE" -a -n "$LOGIN" && {
 504     # get current uname and uptime (if exists on this host)
 505     # strip any leading whitespace from uname and uptime commands
 506     t_uname="$(test -n "`type -P uname`" && uname -npsr | sed -e 's/^\s+//')"
 507     t_uptime="$(test -n "`type -P uptime`" && uptime | sed -e 's/^\s+//')"
 508     if [ -n "$t_uname" ] || [ -n "$t_uptime" ]; then
 509         echo " --"
 510         test -n "$t_uname" && echo $t_uname
 511         test -n "$t_uptime" && echo $t_uptime
 512         echo " --"
 513     fi
 514     unset t_uname t_uptime
 515 }
 516
 517 # vim: ts=4 sts=4 shiftwidth=4 expandtab