.bashrc

   1 #!/bin/bash
   2 # ~/.bashrc: executed by bash(1) for non-login shells.
   3 # A basically sane bash environment.
   4
   5 # ----------------------------------------------------------------------
   6 #  BASICS
   7 # ----------------------------------------------------------------------
   8
   9 # short-circuit for non-interactive sessions
  10 [ -z "$PS1" ] && return
  11
  12 # the basics
  13 : ${HOME=~}
  14 : ${LOGNAME=$(id -un)}
  15 : ${UNAME=$(uname)}
  16 # strip OS type and version under Cygwin (e.g. CYGWIN_NT-5.1 => Cygwin)
  17 UNAME=${UNAME/CYGWIN_*/Cygwin}
  18
  19 # complete hostnames from this file
  20 HOSTFILE=~/.ssh/known_hosts
  21
  22 # readline config
  23 INPUTRC=~/.inputrc
  24
  25 # if current $TERM isn't valid, fall-back to TERM=xterm-color or TERM=xterm
  26 case $(tput colors 2>&1) in
  27     tput* )
  28         export TERM=xterm-color
  29         case $(tput colors 2>&1) in
  30             tput* )
  31                 export TERM=xterm
  32                 ;;
  33         esac
  34         ;;
  35 esac
  36
  37 # ----------------------------------------------------------------------
  38 #  SHELL OPTIONS
  39 # ----------------------------------------------------------------------
  40
  41 # notify of bg job completion immediately
  42 set -o notify
  43
  44 # shell opts. see bash(1) for details
  45 shopt -s cdspell >/dev/null 2>&1
  46 shopt -s checkjobs >/dev/null 2>&1
  47 shopt -s checkwinsize >/dev/null 2>&1
  48 shopt -s extglob >/dev/null 2>&1
  49 shopt -s histappend >/dev/null 2>&1
  50 shopt -s hostcomplete >/dev/null 2>&1
  51 shopt -s interactive_comments >/dev/null 2>&1
  52 shopt -u mailwarn >/dev/null 2>&1
  53 shopt -s no_empty_cmd_completion >/dev/null 2>&1
  54
  55 # don't check for new mail
  56 unset MAILCHECK
  57
  58 # disable core dumps
  59 ulimit -S -c 0
  60
  61 # default umask
  62 umask 0022
  63
  64 # ----------------------------------------------------------------------
  65 # PATH
  66 # ----------------------------------------------------------------------
  67
  68 # make sure $MANPATH has some sane defaults
  69 : ${MANPATH="/usr/share/man"}
  70 test -d "/usr/share/man" && MANPATH="/usr/share/man:$MANPATH"
  71
  72 # include the various sbin's along with /usr/local/bin
  73 PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin"
  74 PATH="/usr/local/bin:$PATH"
  75
  76 # use $HOME specific bin and sbin
  77 test -d "$HOME/bin" && PATH="$HOME/bin:$PATH"
  78 test -d "$HOME/sbin" && PATH="$HOME/sbin:$PATH"
  79
  80 # SmartOS pkgin
  81 test -d "/opt/local" && PATH="/opt/local/sbin:/opt/local/bin:$PATH"
  82 test -d "/opt/local/man" && MANPATH="/opt/local/man:$MANPATH"
  83 # SmartOS local files
  84 test -d "/opt/custom" && PATH="/opt/custom/sbin:/opt/custom/bin:$PATH"
  85 test -d "/opt/custom/man" && MANPATH="/opt/custom/man:$MANPATH"
  86 # SmartOS SDC
  87 test -d "/smartdc" && PATH="/smartdc/bin:/opt/smartdc/bin:/opt/smartdc/agents/bin:$PATH"
  88 test -d "/smartdc/man" && MANPATH="/smartdc/man:$MANPATH"
  89 # SmartOS native binaries, for OS/LX zones
  90 test -d "/native" && PATH="$PATH:/native/usr/sbin:/native/usr/bin:/native/sbin:/native/bin"
  91 test -d "/native/usr/share/man" && MANPATH="$MANPATH:/native/usr/share/man"
  92
  93 # RVM
  94 test -d "$HOME/.rvm/bin" && PATH="$PATH:$HOME/.rvm/bin"
  95
  96 # setup $GOPATH
  97 test -d "/usr/local/share/golang" && export GOPATH=/usr/local/share/golang
  98 test -n "$GOPATH" && PATH="$PATH:$GOPATH/bin"
  99
 100 # ----------------------------------------------------------------------
 101 # ENVIRONMENT CONFIGURATION
 102 # ----------------------------------------------------------------------
 103
 104 # detect interactive shell
 105 case "$-" in
 106     *i*) INTERACTIVE=yes ;;
 107     *)   unset INTERACTIVE ;;
 108 esac
 109
 110 # detect login shell
 111 case "$0" in
 112    -*) LOGIN=yes ;;
 113    *)  unset LOGIN ;;
 114 esac
 115
 116 # enable en_US locale w/ utf-8 encodings if not already
 117 # configured
 118 : ${LANG:="en_US.UTF-8"}
 119 : ${LANGUAGE:="en"}
 120 : ${LC_CTYPE:="en_US.UTF-8"}
 121 : ${LC_ALL:="en_US.UTF-8"}
 122 export LANG LANGUAGE LC_CTYPE LC_ALL
 123
 124 # ignore backups, CVS directories, python bytecode, vim swap files
 125 FIGNORE="~:CVS:#:.pyc:.swp:.swa:apache-solr-*"
 126
 127 # history stuff
 128 HISTCONTROL=ignoreboth
 129 HISTFILESIZE=10000
 130 HISTSIZE=10000
 131
 132 # ----------------------------------------------------------------------
 133 # PAGER / EDITOR
 134 # ----------------------------------------------------------------------
 135
 136 # see what we have to work with ...
 137 HAVE_VIM=$(command -v vim)
 138
 139 # EDITOR
 140 test -n "$HAVE_VIM" &&
 141     EDITOR=vim ||
 142     EDITOR=vi
 143 export EDITOR
 144
 145 # PAGER
 146 if test -n "$(command -v less)" ; then
 147     PAGER="less"
 148     MANPAGER="less"
 149     LESS="-FiRX"
 150     export LESS
 151 else
 152     PAGER=more
 153     MANPAGER="$PAGER"
 154 fi
 155 export PAGER MANPAGER
 156
 157 # ----------------------------------------------------------------------
 158 # PROMPT
 159 # ----------------------------------------------------------------------
 160
 161 # http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
 162
 163 if [ "$UID" = 0 ]; then
 164     # root
 165     PS_C1="\[\033[1;31m\]"  # red
 166     PS_C2="\[\033[0;37m\]"  # grey
 167     PS_P="#"
 168 else
 169     case "$UNAME" in
 170         Cygwin)
 171             PS_C1="\[\033[0;32m\]"  # green
 172             PS_C2="\[\033[0;37m\]"  # grey
 173             ;;
 174         Darwin)
 175             PS_C1="\[\033[1;97m\]"  # white
 176             PS_C2="\[\033[0;37m\]"  # grey
 177             ;;
 178         SunOS)
 179             PS_C1="\[\033[1;96m\]"  # cyan
 180             PS_C2="\[\033[0;36m\]"  # cyan
 181             ;;
 182         *)
 183             PS_C1="\[\033[1;93m\]"  # yellow
 184             PS_C2="\[\033[0;33m\]"  # brown
 185     esac
 186     PS_P="\$"
 187 fi
 188
 189 prompt_simple() {
 190     unset PROMPT_COMMAND
 191     PS1="[\u@\h:\w]\$ "
 192     PS2="> "
 193 }
 194
 195 prompt_compact() {
 196     unset PROMPT_COMMAND
 197     PS1="${PS_C1}${PS_P}\[\033[0m\] "
 198     PS2="> "
 199 }
 200
 201 prompt_color() {
 202     # if git and the git bash_completion scripts are installed, use __git_ps1() to show current branch info.
 203     # never show branch info for $HOME (dotfiles) repo.
 204     # use the following to exclude a given repo: `git config --local --bool --add bash.hidePrompt true`
 205     if [ -n "$(type -P git)" -a "$(type -t __git_ps1)" = "function" ]; then
 206         PS_GIT='$(test -n "$(__git_ps1 %s)" &&
 207                   test "$(git rev-parse --show-toplevel)" != "$HOME" &&
 208                   test "$(git config --bool bash.hidePrompt)" != "true" &&
 209                   __git_ps1 "{\[\033[0;40;36m\]%s\[\033[0;90m\]}")'
 210         export GIT_PS1_SHOWDIRTYSTATE=1
 211     fi
 212     PS1="\[\033[0;90m\][${PS_C1}\u@\h\[\033[0m\]\[\033[0;90m\]:${PS_C2}\w\[\033[0;90m\]]${PS_GIT}${PS_P}\[\033[0m\] "
 213     PS2="> "
 214 }
 215
 216 # ----------------------------------------------------------------------
 217 # MACOS X / DARWIN SPECIFIC
 218 # ----------------------------------------------------------------------
 219
 220 if [ "$UNAME" = Darwin ]; then
 221     # put ports on the paths if /opt/local exists
 222     test -x /opt/local -a ! -L /opt/local && {
 223         PORTS=/opt/local
 224
 225         # setup the PATH and MANPATH
 226         PATH="$PORTS/bin:$PORTS/sbin:$PATH"
 227         MANPATH="$PORTS/share/man:$MANPATH"
 228
 229         # nice little port alias
 230         alias port="sudo nice -n +18 $PORTS/bin/port"
 231     }
 232     # put coreutils on the paths if /usr/local/opt/coreutils/libexec exists
 233     test -x /usr/local/opt/coreutils/libexec -a ! -L /usr/local/opt/coreutils/libexec && {
 234         # setup the PATH and MANPATH
 235         PATH="/usr/local/opt/coreutils/libexec/gnubin:$PATH"
 236         MANPATH="/usr/local/opt/coreutils/libexec/gnuman:$MANPATH"
 237     }
 238 fi
 239
 240 # ----------------------------------------------------------------------
 241 # SOLARIS SPECIFIC
 242 # ----------------------------------------------------------------------
 243
 244 if [ "$UNAME" = SunOS ]; then
 245     # use GNU versions of core utils
 246     test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep"
 247     test -x /usr/gnu/bin/sed  && alias sed="/usr/gnu/bin/sed"
 248     test -x /usr/gnu/bin/awk  && alias awk="/usr/gnu/bin/awk"
 249 fi
 250
 251 # ----------------------------------------------------------------------
 252 # ALIASES / FUNCTIONS
 253 # ----------------------------------------------------------------------
 254
 255 # 'ls' helpers
 256 alias ll="ls -l"
 257 alias l.="ls -d .*"
 258 alias ll.="ls -ld .*"
 259 alias lla="ls -la"
 260
 261 # use 'git diff --no-index' as a prettier 'diff' alternative (if available)
 262 test -n "$(type -P git)" && alias diff="git diff --no-index"
 263
 264 # alias 'vi' to 'vim' if Vim is installed
 265 vim="$(type -P vim)"
 266 test -n "$vim" && {
 267     alias vi='vim'
 268 }
 269 unset vim
 270
 271 # disk usage with human sizes and minimal depth
 272 alias du1='du -h --max-depth=1'
 273 alias fn='find . -name'
 274 alias hi='history | tail -20'
 275
 276 # alias csh-style "rebash" to bash equivalent
 277 alias rehash="hash -r"
 278
 279 # set 'screen' window title
 280 settitle_screen() {
 281     printf "\033k%s\033\\" "$@"
 282 }
 283 # set 'xterm' window title
 284 settitle_window() {
 285     printf "\033]0;%s\007" "$@"
 286 }
 287
 288 # svn-wrapper
 289 alias svn=svn-wrapper
 290
 291 # ----------------------------------------------------------------------
 292 # BASH COMPLETION
 293 # ----------------------------------------------------------------------
 294
 295 test -z "$BASH_COMPLETION" && {
 296     bash=${BASH_VERSION%.*}; bmajor=${bash%.*}; bminor=${bash#*.}
 297     test -n "$PS1" && test $bmajor -gt 1 && {
 298         # search for a bash_completion file to source
 299         for f in /usr/local/etc/bash_completion \
 300                  /usr/pkg/etc/bash_completion \
 301                  /opt/local/etc/bash_completion \
 302                  /etc/bash_completion \
 303                  /etc/bash/bash_completion
 304         do
 305             test -f $f && {
 306                 . $f
 307                 break
 308             }
 309         done
 310     }
 311     unset bash bmajor bminor
 312 }
 313
 314 # restore some key environment variables which may have been unset
 315 # by bash_completion script
 316 : ${HOME=~}
 317 : ${LOGNAME=$(id -un)}
 318 : ${UNAME=$(uname)}
 319
 320 # override and disable tilde expansion
 321 _expand() {
 322     return 0
 323 }
 324
 325 # ----------------------------------------------------------------------
 326 # LS AND DIRCOLORS
 327 # ----------------------------------------------------------------------
 328
 329 # we always pass these to ls(1)
 330 LS_COMMON="-p"
 331
 332 # if the dircolors utility is available, set that up for ls
 333 dircolors="$(type -P gdircolors dircolors | head -1)"
 334 test -n "$dircolors" && {
 335     COLORS=/etc/DIR_COLORS
 336     test -e "/etc/DIR_COLORS.$TERM"   && COLORS="/etc/DIR_COLORS.$TERM"
 337     test -e "$HOME/.dircolors"        && COLORS="$HOME/.dircolors"
 338     test ! -e "$COLORS"               && COLORS=
 339     eval `$dircolors --sh $COLORS`
 340 }
 341 unset dircolors
 342
 343 # enable color ls output if available
 344 test -n "$COLORS" &&
 345     LS_COMMON="--color=auto $LS_COMMON"
 346
 347 # setup the main ls alias if we've established common args
 348 test -n "$LS_COMMON" &&
 349     alias ls="command ls $LS_COMMON"
 350
 351 # setup color grep output if available
 352 if [ -n "$COLORS" ]; then
 353     case "$UNAME" in
 354         "SunOS")
 355             test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep --color=always"
 356             test -x /opt/local/bin/grep && alias grep="/opt/local/bin/grep --color=always"
 357             ;;
 358         *)
 359             alias grep="command grep --color=always"
 360             ;;
 361     esac
 362     # older versions of grep only support a singular highlight color
 363     export GREP_COLOR='1;37;42'
 364     # newer versions of grep have more flexible color configuration
 365     export GREP_COLORS='fn=36:ln=1;33:ms=1;37;42'
 366 fi
 367
 368 # --------------------------------------------------------------------
 369 # MISC COMMANDS
 370 # --------------------------------------------------------------------
 371
 372 # push SSH public key to another box
 373 push_ssh_cert() {
 374     local _host
 375     test -f ~/.ssh/id_rsa.pub || ssh-keygen -t rsa -b 4096
 376     for _host in "$@";
 377     do
 378         echo $_host
 379         ssh $_host 'cat >> ~/.ssh/authorized_keys' < ~/.ssh/id_rsa.pub
 380     done
 381 }
 382
 383 # --------------------------------------------------------------------
 384 # PATH MANIPULATION FUNCTIONS
 385 # --------------------------------------------------------------------
 386
 387 # Usage: pls [<var>]
 388 # List path entries of PATH or environment variable <var>.
 389 pls () { eval echo \$${1:-PATH} |tr : '\n'; }
 390
 391 # Usage: pshift [-n <num>] [<var>]
 392 # Shift <num> entries off the front of PATH or environment var <var>.
 393 # with the <var> option. Useful: pshift $(pwd)
 394 pshift () {
 395     local n=1
 396     [ "$1" = "-n" ] && { n=$(( $2 + 1 )); shift 2; }
 397     eval "${1:-PATH}='$(pls |tail -n +$n |tr '\n' :)'"
 398 }
 399
 400 # Usage: ppop [-n <num>] [<var>]
 401 # Pop <num> entries off the end of PATH or environment variable <var>.
 402 ppop () {
 403     local n=1 i=0
 404     [ "$1" = "-n" ] && { n=$2; shift 2; }
 405     while [ $i -lt $n ]
 406     do eval "${1:-PATH}='\${${1:-PATH}%:*}'"
 407        i=$(( i + 1 ))
 408     done
 409 }
 410
 411 # Usage: prm <path> [<var>]
 412 # Remove <path> from PATH or environment variable <var>.
 413 prm () { eval "${2:-PATH}='$(pls $2 |grep -v "^$1\$" |tr '\n' :)'"; }
 414
 415 # Usage: punshift <path> [<var>]
 416 # Shift <path> onto the beginning of PATH or environment variable <var>.
 417 punshift () { eval "${2:-PATH}='$1:$(eval echo \$${2:-PATH})'"; }
 418
 419 # Usage: ppush <path> [<var>]
 420 ppush () { eval "${2:-PATH}='$(eval echo \$${2:-PATH})':$1"; }
 421
 422 # Usage: puniq [<path>]
 423 # Remove duplicate entries from a PATH style value while retaining
 424 # the original order. Use PATH if no <path> is given.
 425 #
 426 # Example:
 427 #   $ puniq /usr/bin:/usr/local/bin:/usr/bin
 428 #   /usr/bin:/usr/local/bin
 429 puniq () {
 430     echo "$1" | tr : '\n' | nl | sort -u -k 2,2 | sort -n |
 431     cut -f 2- | tr '\n' : | sed -e 's/:$//' -e 's/^://'
 432 }
 433
 434 # -------------------------------------------------------------------
 435 # USER SHELL ENVIRONMENT
 436 # -------------------------------------------------------------------
 437
 438 # source ~/.shenv now if it exists
 439 test -r ~/.shenv &&
 440     . ~/.shenv
 441
 442 # condense PATH entries
 443 PATH=$(puniq "$PATH")
 444 MANPATH=$(puniq "$MANPATH")
 445
 446 # use the color prompt by default when interactive
 447 test -n "$PS1" &&
 448     prompt_color
 449
 450 # fzf
 451 export FZF_DEFAULT_COMMAND='rg --files --no-ignore --hidden --follow -g "!{.git,node_modules,*.swp,.venv}/*" 2> /dev/null'
 452 export FZF_DEFAULT_OPTS='--bind J:down,K:up --reverse --ansi --multi'
 453
 454 # -------------------------------------------------------------------
 455 # MOTD / FORTUNE
 456 # -------------------------------------------------------------------
 457
 458 test -n "$INTERACTIVE" -a -n "$LOGIN" && {
 459     # get current uname and uptime (if exists on this host)
 460     # strip any leading whitespace from uname and uptime commands
 461     t_uname="$(test -n "`type -P uname`" && uname -npsr | sed -e 's/^\s+//')"
 462     t_uptime="$(test -n "`type -P uptime`" && uptime | sed -e 's/^\s+//')"
 463     if [ -n "$t_uname" ] || [ -n "$t_uptime" ]; then
 464         echo " --"
 465         test -n "$t_uname" && echo $t_uname
 466         test -n "$t_uptime" && echo $t_uptime
 467         echo " --"
 468     fi
 469     unset t_uname t_uptime
 470 }
 471
 472 # vim: ts=4 sts=4 shiftwidth=4 expandtab
 473 # vim: foldmethod=expr foldexpr=autofolds#foldexpr(v\:lnum,'sh') foldtext=autofolds#foldtext() foldlevel=2