.bashrc

   1 #!/bin/bash
   2 # ~/.bashrc: executed by bash(1) for non-login shells.
   3 # A basically sane bash environment.
   4 # Tony Duckles <http://nynim.org/about/> (based on http://github.com/rtomayko/dotfiles)
   5
   6 # short-circuit for non-interactive sessions
   7 [ -z "$PS1" ] && return
   8
   9 # the basics
  10 PATH="/usr/local/bin:/bin:/usr/bin:/usr/sbin:/usr/local/sbin:/sbin:$PATH"
  11 : ${HOME=~}
  12 : ${LOGNAME=$(id -un)}
  13 : ${UNAME=$(uname)}
  14 # strip OS type and version under Cygwin (e.g. CYGWIN_NT-5.1 => Cygwin)
  15 UNAME=${UNAME/CYGWIN_*/Cygwin}
  16
  17 # complete hostnames from this file
  18 HOSTFILE=~/.ssh/known_hosts
  19
  20 # readline config
  21 INPUTRC=~/.inputrc
  22
  23 # if current $TERM isn't valid, fall-back to TERM=xterm-color or TERM=xterm
  24 case $(tput colors 2>&1) in
  25     tput* )
  26         export TERM=xterm-color
  27         case $(tput colors 2>&1) in
  28             tput* )
  29                 export TERM=xterm
  30                 ;;
  31         esac
  32         ;;
  33 esac
  34
  35 # ----------------------------------------------------------------------
  36 #  SHELL OPTIONS
  37 # ----------------------------------------------------------------------
  38
  39 # notify of bg job completion immediately
  40 set -o notify
  41
  42 # shell opts. see bash(1) for details
  43 shopt -s cdspell >/dev/null 2>&1
  44 shopt -s checkjobs >/dev/null 2>&1
  45 shopt -s checkwinsize >/dev/null 2>&1
  46 shopt -s extglob >/dev/null 2>&1
  47 shopt -s histappend >/dev/null 2>&1
  48 shopt -s hostcomplete >/dev/null 2>&1
  49 shopt -s interactive_comments >/dev/null 2>&1
  50 shopt -u mailwarn >/dev/null 2>&1
  51 shopt -s no_empty_cmd_completion >/dev/null 2>&1
  52
  53 # don't check for new mail
  54 unset MAILCHECK
  55
  56 # disable core dumps
  57 ulimit -S -c 0
  58
  59 # default umask
  60 umask 0022
  61
  62 # ----------------------------------------------------------------------
  63 # PATH
  64 # ----------------------------------------------------------------------
  65
  66 # include the various sbin's along with /usr/local/bin
  67 PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin"
  68 PATH="/usr/local/bin:$PATH"
  69
  70 # use $HOME specific bin and sbin
  71 test -d "$HOME/bin" && PATH="$HOME/bin:$PATH"
  72 test -d "$HOME/sbin" && PATH="$HOME/sbin:$PATH"
  73
  74 # SmartOS pkgin
  75 test -d "/opt/local" && PATH="/opt/local/sbin:/opt/local/bin:$PATH"
  76 # SmartOS local files
  77 test -d "/opt/custom" && PATH="/opt/custom/sbin:/opt/custom/bin:$PATH"
  78 # SmartOS SDC
  79 test -d "/smartdc" && PATH="/smartdc/bin:/opt/smartdc/bin:/opt/smartdc/agents/bin:$PATH"
  80 # SmartOS native binaries, for OS/LX zones
  81 test -d "/native" && PATH="$PATH:/native/usr/sbin:/native/usr/bin:/native/sbin:/native/bin"
  82
  83 # RVM
  84 test -d "$HOME/.rvm/bin" && PATH="$PATH:$HOME/.rvm/bin"
  85
  86 # setup $GOPATH
  87 test -d "/usr/local/share/golang" && export GOPATH=/usr/local/share/golang
  88 test -n "$GOPATH" && PATH="$PATH:$GOPATH/bin"
  89
  90 # ----------------------------------------------------------------------
  91 # ENVIRONMENT CONFIGURATION
  92 # ----------------------------------------------------------------------
  93
  94 # detect interactive shell
  95 case "$-" in
  96     *i*) INTERACTIVE=yes ;;
  97     *)   unset INTERACTIVE ;;
  98 esac
  99
 100 # detect login shell
 101 case "$0" in
 102    -*) LOGIN=yes ;;
 103    *)  unset LOGIN ;;
 104 esac
 105
 106 # setup locale. Try to enable en_US locale w/ utf-8 encodings
 107 # (if not already configured), but do graceful fall-back.
 108 lclist=$(locale -a | grep en_US)
 109 if test -n "$(echo $lclist | grep UTF-8)"; then
 110     : ${LANG:="en_US.UTF-8"}
 111     : ${LANGUAGE:="en"}
 112     : ${LC_CTYPE:="en_US.UTF-8"}
 113     : ${LC_ALL:="en_US.UTF-8"}
 114 elif test -n "$(echo $lclist | grep utf8)"; then
 115     : ${LANG:="en_US.utf8"}
 116     : ${LANGUAGE:="en"}
 117     : ${LC_CTYPE:="en_US.utf8"}
 118     : ${LC_ALL:="en_US.utf8"}
 119 elif test -n "$(echo $lclist | grep ISO8859-1)"; then
 120     : ${LANG:="en_US.ISO8859-1"}
 121     : ${LANGUAGE:="en"}
 122     : ${LC_CTYPE:="en_US.ISO8859-1"}
 123     : ${LC_ALL:="en_US.ISO8859-1"}
 124 else
 125     : ${LANG:="en_US"}
 126     : ${LANGUAGE:="en"}
 127     : ${LC_CTYPE:="en_US"}
 128     : ${LC_ALL:="en_US"}
 129 fi
 130 export LANG LANGUAGE LC_CTYPE LC_ALL
 131 unset lclist
 132
 133 # ignore backups, CVS directories, python bytecode, vim swap files
 134 FIGNORE="~:CVS:#:.pyc:.swp:.swa:apache-solr-*"
 135
 136 # history stuff
 137 HISTCONTROL=ignoreboth
 138 HISTFILESIZE=10000
 139 HISTSIZE=10000
 140
 141 # ----------------------------------------------------------------------
 142 # PAGER / EDITOR
 143 # ----------------------------------------------------------------------
 144
 145 # see what we have to work with ...
 146 HAVE_VIM=$(command -v vim)
 147
 148 # EDITOR
 149 test -n "$HAVE_VIM" &&
 150     EDITOR=vim ||
 151     EDITOR=vi
 152 export EDITOR
 153
 154 # PAGER
 155 if test -n "$(command -v less)" ; then
 156     PAGER="less"
 157     MANPAGER="less"
 158     LESS="-FiRX"
 159     export LESS
 160 else
 161     PAGER=more
 162     MANPAGER="$PAGER"
 163 fi
 164 export PAGER MANPAGER
 165
 166 # ----------------------------------------------------------------------
 167 # PROMPT
 168 # ----------------------------------------------------------------------
 169
 170 # http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
 171
 172 if [ "$UID" = 0 ]; then
 173     # root
 174     PS_C1="\[\033[1;31m\]"  # red
 175     PS_C2="\[\033[0;37m\]"  # grey
 176     PS_P="#"
 177 else
 178     case "$UNAME" in
 179         Cygwin)
 180             PS_C1="\[\033[0;32m\]"  # green
 181             PS_C2="\[\033[0;37m\]"  # grey
 182             ;;
 183         Darwin)
 184             PS_C1="\[\033[1;97m\]"  # white
 185             PS_C2="\[\033[0;37m\]"  # grey
 186             ;;
 187         SunOS | AIX)
 188             PS_C1="\[\033[1;96m\]"  # cyan
 189             PS_C2="\[\033[0;36m\]"  # cyan
 190             ;;
 191         *)
 192             PS_C1="\[\033[1;93m\]"  # yellow
 193             PS_C2="\[\033[0;33m\]"  # brown
 194     esac
 195     PS_P="\$"
 196 fi
 197
 198 prompt_simple() {
 199     unset PROMPT_COMMAND
 200     PS1="[\u@\h:\w]\$ "
 201     PS2="> "
 202 }
 203
 204 prompt_compact() {
 205     unset PROMPT_COMMAND
 206     PS1="${PS_C1}${PS_P}\[\033[0m\] "
 207     PS2="> "
 208 }
 209
 210 prompt_color() {
 211     # if git and the git bash_completion scripts are installed, use __git_ps1() to show current branch info.
 212     # never show branch info for $HOME (dotfiles) repo.
 213     # use the following to exclude a given repo: `git config --local --bool --add bash.hidePrompt true`
 214     if [ -n "$(type -P git)" -a "$(type -t __git_ps1)" = "function" ]; then
 215         PS_GIT='$(test -n "$(__git_ps1 %s)" &&
 216                   test "$(git rev-parse --show-toplevel)" != "$HOME" &&
 217                   test "$(git config --bool bash.hidePrompt)" != "true" &&
 218                   __git_ps1 "{\[\033[0;40;36m\]%s\[\033[0;90m\]}")'
 219         export GIT_PS1_SHOWDIRTYSTATE=1
 220     fi
 221     PS1="\[\033[0;90m\][${PS_C1}\u@\h\[\033[0m\]\[\033[0;90m\]:${PS_C2}\w\[\033[0;90m\]]${PS_GIT}${PS_P}\[\033[0m\] "
 222     PS2="> "
 223 }
 224
 225 # ----------------------------------------------------------------------
 226 # MACOS X / DARWIN SPECIFIC
 227 # ----------------------------------------------------------------------
 228
 229 if [ "$UNAME" = Darwin ]; then
 230     # put ports on the paths if /opt/local exists
 231     test -x /opt/local -a ! -L /opt/local && {
 232         PORTS=/opt/local
 233
 234         # setup the PATH and MANPATH
 235         PATH="$PORTS/bin:$PORTS/sbin:$PATH"
 236         MANPATH="$PORTS/share/man:$MANPATH"
 237
 238         # nice little port alias
 239         alias port="sudo nice -n +18 $PORTS/bin/port"
 240     }
 241     # put coreutils on the paths if /usr/local/opt/coreutils/libexec exists
 242     test -x /usr/local/opt/coreutils/libexec -a ! -L /usr/local/opt/coreutils/libexec && {
 243         # setup the PATH and MANPATH
 244         PATH="/usr/local/opt/coreutils/libexec/gnubin:$PATH"
 245         MANPATH="/usr/local/opt/coreutils/libexec/gnuman:$MANPATH"
 246     }
 247 fi
 248
 249 # ----------------------------------------------------------------------
 250 # SOLARIS SPECIFIC
 251 # ----------------------------------------------------------------------
 252
 253 if [ "$UNAME" = SunOS ]; then
 254     # use GNU versions of core utils
 255     test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep"
 256     test -x /usr/gnu/bin/sed  && alias sed="/usr/gnu/bin/sed"
 257     test -x /usr/gnu/bin/awk  && alias awk="/usr/gnu/bin/awk"
 258     test -x /usr/xpg4/bin/sed  && alias sed="/usr/xpg4/bin/sed"
 259     test -x /usr/xpg4/bin/awk  && alias awk="/usr/xpg4/bin/awk"
 260
 261     # setup MANPATH
 262     MANPATH="/usr/share/man:/smartdc/man:/opt/smartdc/man:/opt/local/man:/opt/custom/man:$MANPATH"
 263 fi
 264
 265 # ----------------------------------------------------------------------
 266 # ALIASES / FUNCTIONS
 267 # ----------------------------------------------------------------------
 268
 269 # 'ls' helpers
 270 alias ll="ls -l"
 271 alias l.="ls -d .*"
 272 alias ll.="ls -ld .*"
 273 alias lla="ls -la"
 274
 275 # use 'git diff --no-index' as a prettier 'diff' alternative (if available)
 276 test -n "$(type -P git)" && alias diff="git diff --no-index"
 277
 278 # alias 'vi' to 'vim' if Vim is installed
 279 vim="$(type -P vim)"
 280 test -n "$vim" && {
 281     alias vi='vim'
 282 }
 283 unset vim
 284
 285 # disk usage with human sizes and minimal depth
 286 alias du1='du -h --max-depth=1'
 287 alias fn='find . -name'
 288 alias hi='history | tail -20'
 289
 290 # alias csh-style "rebash" to bash equivalent
 291 alias rehash="hash -r"
 292
 293 # set 'screen' window title
 294 settitle() {
 295     printf "\033k%s\033\\" "$@"
 296 }
 297
 298 # svn-wrapper
 299 alias svn=svn-wrapper
 300
 301 # ----------------------------------------------------------------------
 302 # BASH COMPLETION
 303 # ----------------------------------------------------------------------
 304
 305 test -z "$BASH_COMPLETION" && {
 306     bash=${BASH_VERSION%.*}; bmajor=${bash%.*}; bminor=${bash#*.}
 307     test -n "$PS1" && test $bmajor -gt 1 && {
 308         # search for a bash_completion file to source
 309         for f in /usr/local/etc/bash_completion \
 310                  /usr/pkg/etc/bash_completion \
 311                  /opt/local/etc/bash_completion \
 312                  /etc/bash_completion \
 313                  /etc/bash/bash_completion
 314         do
 315             test -f $f && {
 316                 . $f
 317                 break
 318             }
 319         done
 320     }
 321     unset bash bmajor bminor
 322 }
 323
 324 # restore some key environment variables which may have been unset
 325 # by bash_completion script
 326 : ${HOME=~}
 327 : ${LOGNAME=$(id -un)}
 328 : ${UNAME=$(uname)}
 329
 330 # override and disable tilde expansion
 331 _expand() {
 332     return 0
 333 }
 334
 335 # ----------------------------------------------------------------------
 336 # LS AND DIRCOLORS
 337 # ----------------------------------------------------------------------
 338
 339 # we always pass these to ls(1)
 340 LS_COMMON="-p"
 341
 342 # if the dircolors utility is available, set that up for ls
 343 dircolors="$(type -P gdircolors dircolors | head -1)"
 344 test -n "$dircolors" && {
 345     COLORS=/etc/DIR_COLORS
 346     test -e "/etc/DIR_COLORS.$TERM"   && COLORS="/etc/DIR_COLORS.$TERM"
 347     test -e "$HOME/.dircolors"        && COLORS="$HOME/.dircolors"
 348     test ! -e "$COLORS"               && COLORS=
 349     # AIX (vx-track) has dircolors(1) but ls(1) doesn't support --color arg
 350     test "$UNAME" = "AIX"             && COLORS=
 351     eval `$dircolors --sh $COLORS`
 352 }
 353 unset dircolors
 354
 355 # enable color ls output if available
 356 test -n "$COLORS" &&
 357     LS_COMMON="--color=auto $LS_COMMON"
 358
 359 # setup the main ls alias if we've established common args
 360 test -n "$LS_COMMON" &&
 361     alias ls="command ls $LS_COMMON"
 362
 363 # setup color grep output if available
 364 if [ -n "$COLORS" ]; then
 365     case "$UNAME" in
 366         "SunOS")
 367             test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep --color=always"
 368             test -x /opt/local/bin/grep && alias grep="/opt/local/bin/grep --color=always"
 369             ;;
 370         *)
 371             alias grep="command grep --color=always"
 372             ;;
 373     esac
 374     # older versions of grep only support a singular highlight color
 375     export GREP_COLOR='1;37;42'
 376     # newer versions of grep have more flexible color configuration
 377     export GREP_COLORS='fn=36:ln=1;33:ms=1;37;42'
 378 fi
 379
 380 # --------------------------------------------------------------------
 381 # MISC COMMANDS
 382 # --------------------------------------------------------------------
 383
 384 # push SSH public key to another box
 385 push_ssh_cert() {
 386     local _host
 387     test -f ~/.ssh/id_rsa.pub || ssh-keygen -t rsa -b 4096
 388     for _host in "$@";
 389     do
 390         echo $_host
 391         ssh $_host 'cat >> ~/.ssh/authorized_keys' < ~/.ssh/id_rsa.pub
 392     done
 393 }
 394
 395 # --------------------------------------------------------------------
 396 # PATH MANIPULATION FUNCTIONS
 397 # --------------------------------------------------------------------
 398
 399 # Usage: pls [<var>]
 400 # List path entries of PATH or environment variable <var>.
 401 pls () { eval echo \$${1:-PATH} |tr : '\n'; }
 402
 403 # Usage: pshift [-n <num>] [<var>]
 404 # Shift <num> entries off the front of PATH or environment var <var>.
 405 # with the <var> option. Useful: pshift $(pwd)
 406 pshift () {
 407     local n=1
 408     [ "$1" = "-n" ] && { n=$(( $2 + 1 )); shift 2; }
 409     eval "${1:-PATH}='$(pls |tail -n +$n |tr '\n' :)'"
 410 }
 411
 412 # Usage: ppop [-n <num>] [<var>]
 413 # Pop <num> entries off the end of PATH or environment variable <var>.
 414 ppop () {
 415     local n=1 i=0
 416     [ "$1" = "-n" ] && { n=$2; shift 2; }
 417     while [ $i -lt $n ]
 418     do eval "${1:-PATH}='\${${1:-PATH}%:*}'"
 419        i=$(( i + 1 ))
 420     done
 421 }
 422
 423 # Usage: prm <path> [<var>]
 424 # Remove <path> from PATH or environment variable <var>.
 425 prm () { eval "${2:-PATH}='$(pls $2 |grep -v "^$1\$" |tr '\n' :)'"; }
 426
 427 # Usage: punshift <path> [<var>]
 428 # Shift <path> onto the beginning of PATH or environment variable <var>.
 429 punshift () { eval "${2:-PATH}='$1:$(eval echo \$${2:-PATH})'"; }
 430
 431 # Usage: ppush <path> [<var>]
 432 ppush () { eval "${2:-PATH}='$(eval echo \$${2:-PATH})':$1"; }
 433
 434 # Usage: puniq [<path>]
 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 () {
 442     echo "$1" | tr : '\n' | nl | sort -u -k 2,2 | sort -n |
 443     cut -f 2- | tr '\n' :
 444 }
 445
 446 # -------------------------------------------------------------------
 447 # USER SHELL ENVIRONMENT
 448 # -------------------------------------------------------------------
 449
 450 # source ~/.shenv now if it exists
 451 test -r ~/.shenv &&
 452     . ~/.shenv
 453
 454 # condense PATH entries
 455 PATH=$(puniq "$PATH")
 456 MANPATH=$(puniq "$MANPATH")
 457
 458 # use the color prompt by default when interactive
 459 test -n "$PS1" &&
 460     prompt_color
 461
 462 # -------------------------------------------------------------------
 463 # MOTD / FORTUNE
 464 # -------------------------------------------------------------------
 465
 466 test -n "$INTERACTIVE" -a -n "$LOGIN" && {
 467     # get current uname and uptime (if exists on this host)
 468     # strip any leading whitespace from uname and uptime commands
 469     t_uname="$(test -n "`type -P uname`" && uname -npsr | sed -e 's/^\s+//')"
 470     t_uptime="$(test -n "`type -P uptime`" && uptime | sed -e 's/^\s+//')"
 471     if [ -n "$t_uname" ] || [ -n "$t_uptime" ]; then
 472         echo " --"
 473         test -n "$t_uname" && echo $t_uname
 474         test -n "$t_uptime" && echo $t_uptime
 475         echo " --"
 476     fi
 477     unset t_uname t_uptime
 478 }
 479
 480 # vim: ts=4 sts=4 shiftwidth=4 expandtab