iankelling.org Git - distro-setup/blob - .bashrc

   1 # to debug
   2 #set -x
   3 # redirect output to log file
   4 #exec 1>/a/tmp/bashlog
   5 #exec 2>/a/tmp/bashlog
   6
   7
   8 # The default of sourcing this file for all ssh commands is a buggy practice. Normally, this
   9 # file is not sourced when a script is run, and we should follow that convention.
  10 # we can override with ssh -t which sets $SSH_TTY, which we can detect
  11 if [[ $SSH_CONNECTION ]] \
  12    && [[ $- == *c* ]] \
  13    && [[ ! $SSH_TTY ]] \
  14    && [[ $- != *i* ]]; then
  15     return
  16 fi
  17
  18 # Side note on ssh. Command lines and env variables sent across ssh are strictly limited.
  19 # If we did want to easily pass info, we could override an obscure unused LC_var
  20 # Or we could set SendEnv and AcceptEnv ssh vars, or we could transfer a file.
  21
  22
  23
  24 ###################
  25 ## include files ###
  26 ###################
  27
  28 for x in $HOME/bin/bash-programs-by-ian/repos/*/*-function; do
  29     source "$x"
  30 done
  31
  32 source $HOME/bin/bash_private # so I can share my bashrc
  33 source $HOME/path_add-function
  34
  35
  36
  37
  38 ############
  39 # settings #
  40 ############
  41
  42 CDPATH=.:/a
  43
  44 # remove gnome keyring warning messages
  45 # there is probably a more proper way, but I didn't find any easily on google
  46 unset GNOME_KEYRING_CONTROL
  47
  48 path_add /a/opt/adt-bundle*/tools /a/opt/adt-bundle*/platform-tools
  49
  50 #use extra globing features. See man bash, search extglob.
  51 shopt -s extglob
  52 #include .files when globbing.
  53 shopt -s dotglob
  54
  55 # disabled because it is broken with bash_completion package. It is a known bug they hope to fix.
  56 # When a glob expands to nothing, make it an empty string instead of the literal characters.
  57 # shopt -s nullglob
  58
  59 # make tab on an empty line do nothing
  60 shopt -s no_empty_cmd_completion
  61
  62
  63 # advanced completion
  64 # http://bash-completion.alioth.debian.org/
  65 # i was using the git version for a while. not bothering now.
  66 # seems a bit inefficient to source it here, and let the system bash
  67 # scripts source it too. todo, investigate if I am super bored sometime
  68 if [[ -r "/usr/share/bash-completion/bash_completion" ]]; then
  69     . /usr/share/bash-completion/bash_completion
  70 fi
  71
  72 # fix spelling errors for cd, only in interactive shell
  73 shopt -s cdspell
  74 # append history instead of overwritting it
  75 shopt -s histappend
  76 # for compatibility, per gentoo/debian bashrc
  77 shopt -s checkwinsize
  78 # attempt to save multiline single commands as single history entries.
  79 shopt -s cmdhist
  80
  81 if [[ $- == *i* ]]; then
  82     # for readline-complete.el
  83     if [[ $INSIDE_EMACS ]]; then
  84         bind 'set horizontal-scroll-mode on'
  85         bind 'set print-completions-horizontally on'
  86         export PAGER=cat
  87         export MANPAGER=cat
  88         stty echo
  89         # debconf occasionally spews messages about wanting to initialize dialog
  90         # and falling back to readline, since our terminal is dumb, then does nothing,
  91         # This is a long standing bug. Here is the fix.
  92         if [[ $DISPLAY ]]; then
  93             export DEBIAN_FRONTEND=gnome
  94         else
  95             export DEBIAN_FRONTEND=readline
  96         fi
  97     else
  98         stty werase undef lnext undef stop undef start undef
  99         # terminal keys: C-c, C-z. the rest defined by stty -a are, at least in
 100         # gnome-terminal, overridden by bash, or disabled by the system
 101
 102         # arrow keys. for other terminals, see http://unix.stackexchange.com/questions/10806/how-to-change-previous-next-word-shortcut-in-bash
 103         if [[ $TERM == "xterm" ]]; then
 104             bind '"\e[1;5C": shell-forward-word' 2>/dev/null
 105             bind '"\e[1;5D": shell-backward-word' 2>/dev/null
 106         else
 107             bind '"\eOc": shell-forward-word'
 108             bind '"\eOd": shell-backward-word'
 109         fi
 110     fi
 111
 112 fi
 113
 114
 115 # history number. History expansion is good.
 116 PS4='$LINENO+ '
 117 # history file size limit, set to unlimited.
 118 HISTFILESIZE=
 119 # max commands 1 session can append to history
 120 HISTSIZE=100000
 121 # my history size limit based on lines
 122 HISTFILELINES=1000000
 123 # this needs to be different from the derault because
 124 # default HISTFILESIZE is 500 and could clobber our history
 125 HISTFILE=$HOME/.bh
 126 HISTTIMEFORMAT="%I:%M %p %m/%d "
 127 # consecutive duplicate lines don't go in history
 128 HISTIGNORE="&"
 129
 130 export BC_LINE_LENGTH=0
 131
 132 path_add /a/opt/adt-bundle*/tools /a/opt/adt-bundle*/platform-tools
 133 path_add $HOME/bin/bash-programs-by-ian/utils
 134 # note, if I use a machine I don't want files readable by all users, set
 135 # umask 077  # If fewer than 4 digits are entered, leading zeros are assumed
 136
 137 C_DEFAULT_DIR=/a
 138
 139
 140
 141
 142 ###############
 143 ### aliases ###
 144 ###############
 145
 146 if [[ $- == *i* ]]; then
 147     alias cp='cp -i'
 148     alias mv='mv -i'
 149 fi
 150
 151 # remove any default aliases for these
 152 alias ls > /dev/null 2>&1 && unalias ls
 153 alias ll > /dev/null 2>&1 && unalias ll
 154 alias grep > /dev/null 2>&1 && unalias grep
 155
 156
 157 mkdir() {
 158     command mkdir -p "$@"
 159 }
 160
 161
 162 alias d='builtin bg'
 163 complete -A stopped -P '"%' -S '"' d
 164
 165 alias his='history'
 166
 167
 168 # note: gksudo is recommended for X apps because it does not set the
 169 # home directory to the same.
 170
 171 if [[ $- == *i* ]]; then
 172     # extra space at the end allows aliases to work
 173     alias s='SUDOD="$PWD" sudo -i '
 174 else
 175     s() {
 176         if [[ $EUID != 0 || $1 == -* ]]; then
 177             local SUDOD="$PWD"
 178             sudo -i "$@"
 179         else
 180             "$@"
 181         fi
 182     }
 183 fi
 184
 185
 186
 187 if [[ $OS == Windows_NT ]]; then
 188     alias ffs='cygstart "/c/Program Files (x86)/Mozilla Firefox/firefox.exe" -P scratch'
 189     export DISPLAY=nt
 190     alias j='command cygpath'
 191     alias t='command cygstart'
 192     alias cygstart='echo be quick, use the alias "t" instead :\)'
 193     alias cygpath='echo be quick, use the alias "j" instead :\)'
 194
 195 fi
 196
 197
 198 #####################
 199 ###  functions   ####
 200 #####################
 201
 202
 203
 204 a() {
 205     beet "${@}"
 206 }
 207
 208
 209 t() {
 210     trash-put "$@"
 211 }
 212
 213
 214 if type ack-grep >/dev/null 2>&1; then
 215     alias ack=ack-grep
 216 fi
 217
 218
 219 gr() {
 220     grep -i --binary-files=without-match --color=auto "$@"
 221 }
 222
 223 grr() {
 224     grep -ri --binary-files=without-match --color=auto "$@"
 225 }
 226
 227
 228
 229
 230
 231
 232 calc() { echo "scale=3; $*" | bc -l; }
 233
 234 cd() {
 235     if [[ $1 == .. ]]; then
 236         echo 'be cool, use the alias ".." instead :)'
 237     fi
 238     builtin cd "$@"
 239 }
 240
 241
 242 # makes it so chown -R symlink affects the symlink and its target.
 243 chown() {
 244     if [[ $1 == -R ]]; then
 245         shift
 246         command chown -h "$@"
 247         command chown "$@"
 248         command chown -RH "$@"
 249     else
 250         command chown "$@"
 251     fi
 252 }
 253
 254
 255
 256 cgpl ()
 257 {
 258     if [[ $# == 0 ]]; then
 259         cp /a/bin/data/COPYING .
 260     else
 261         cp /a/bin/data/COPYING "$@"
 262     fi
 263 }
 264
 265
 266 dc() {
 267     diff --strip-trailing-cr -w "$@"   # diff content
 268 }
 269
 270
 271 distro_name() {
 272     if [[ -f /etc/fedora-release ]]; then
 273         echo fedora
 274     else
 275         grep "^ID=.*" /etc/os-release | sed 's/^ID=//'
 276     fi
 277 }
 278
 279
 280 dt() {
 281     date "+%A, %B %d, %r" "$@"
 282 }
 283
 284
 285 e() { echo "$@"; }
 286
 287
 288 envload() { # load environment from a previous: export > file
 289     local file=${1:-$HOME/.${USER}_env}
 290     eval "$(export | sed 's/^declare -x/export -n/')"
 291     while IFS= read -r line; do
 292         # declare -x makes variables local to a function
 293         eval ${line/#declare -x/export}
 294     done < "$file"
 295 }
 296
 297
 298
 299 # havn't tested these:
 300 #file cut copy and paste, like the text buffers :)
 301 _fbufferinit() { # internal use by
 302     ! [[ $my_f_tempdir ]] && my_f_tempdir=$(mktemp -d)
 303     rm -rf "$my_f_tempdir"/*
 304 }
 305 fcp() { # file cp
 306     _fbufferinit
 307     cp "$@" "$my_f_tempdir"/
 308 }
 309 fct() { # file cut
 310     _fbufferinit
 311     mv "$@" "$my_f_tempdir"/
 312 }
 313 fpst() { # file paste
 314     [[ $2 ]] && { echo too many arguments; return 1; }
 315     target=${1:-.}
 316     cp "$my_f_tempdir"/* "$target"
 317 }
 318
 319
 320 # find array. make an array of file names found by find into $x
 321 # argument: find arguments
 322 # return: find results in an array $x
 323 fa() {
 324     while read -rd ''; do
 325         x+=("$REPLY");
 326     done < <(find "$@" -print0);
 327 }
 328
 329
 330 git_empty_branch() { # start an empty git branch. carefull, it deletes untracked files.
 331     [[ $# == 1 ]] || { echo 'need a branch name!'; return 1;}
 332     local gitroot
 333     gitroot || return 1 # function to set gitroot
 334     builtin cd $gitroot
 335     git symbolic-ref HEAD refs/heads/$1
 336     rm .git/index
 337     git clean -fdx
 338 }
 339
 340 fw() {
 341     firefox -P default "$@" >/dev/null 2>&1
 342 }
 343
 344 fn() {
 345     firefox -P alt "$@" >/dev/null 2>&1
 346 }
 347
 348
 349
 350
 351
 352 # horizontal row. used to break up output
 353 hr() { printf "$(tput setaf 5)█$(tput sgr0)%.0s" $(seq $COLUMNS); }
 354
 355
 356 i() {
 357     git "$@"
 358 }
 359 # modified from ~/local/bin/git-completion.bash
 360 # other completion commands are mostly taken from bash_completion package
 361 complete -o bashdefault -o default -o nospace -F _git i 2>/dev/null \
 362     || complete -o default -o nospace -F _git i
 363
 364
 365 # insensitive find
 366 ifn () {
 367     find . -iname '*'"$*"'*'
 368 }
 369
 370
 371
 372 l() {
 373     if [[ $PWD == /[iap] ]]; then
 374         command ls -A --color=auto -I lost+found "$@"
 375     else
 376         command ls -A --color=auto "$@"
 377     fi
 378 }
 379
 380
 381 lld() { ll -d "$@"; }
 382
 383
 384 low() {  # make filenames all lowercase
 385     local x y
 386     for x in "$@"; do
 387         y=$(tr "[A-Z]" "[a-z]" <<<"$x")
 388         [[ $y != $x ]] && mv "$x" "$y"
 389     done
 390 }
 391
 392
 393 lower() { # make first letter of filenames lowercase.
 394     local x
 395     for x in "$@"; do
 396         if [[ ${x::1} == [A-Z] ]]; then
 397             y=$(tr "[A-Z]" "[a-z]" <<<"${x::1}")"${x:1}"
 398             safe_rename "$x" "$y"
 399         fi
 400     done
 401 }
 402
 403 safe_rename() {
 404     if [[ $# != 2 ]]; then
 405         echo safe_rename error: $# args, need 2 >2
 406         return 1
 407     elif [[ $1 != $2 ]]; then
 408         if [[ -e $2 ]]; then
 409             echo Cannot rename "$1" to "$2" as it already exists.
 410         else
 411             mv "$1" "$2"
 412         fi
 413     fi
 414 }
 415
 416 despace() {
 417     local x y
 418     for x in "$@"; do
 419         y="${x// /_}"
 420         safe_rename "$x" "$y"
 421     done
 422 }
 423
 424 # force symbolic link creation.
 425 # trash-put any existing files where links would be created.
 426 # mkdir -p the directory containing the link(s) if needed.
 427 # then do ln -s -- "$@"
 428 lnf() {
 429     if [[ $# -gt 2 && ! -d ${!#} ]]; then
 430         mkdir -p "${!#}"
 431     fi
 432     if [[ $# -gt 1 && -d ${!#} ]]; then
 433         local oldcwd=$PWD
 434         cd ${!#} # last arg
 435         for x in "${@:1:$(($#-1))}"; do # all but last arg
 436             # remove any trailing slashes
 437             x="${x%%+(/)}"
 438             # remove any leading directory components
 439             x="${x##*/}"
 440             te "$x" && trash-put "$x"
 441         done
 442         cd "$oldcwd"
 443     elif [[ $# -eq 2 ]]; then
 444         if te "$2"; then
 445             trash-put "$2"
 446         elif [[ ! -d $(getdir "$2") ]]; then
 447             mkdir -p $(getdir "$2")
 448         fi
 449     else
 450         te "${1##*/}" && rm "${1##*/}"
 451     fi
 452     ln -s -- "$@"
 453 }
 454
 455
 456
 457 # package manager
 458 # aliases would be much more compact, but they can't be used as ssh commands
 459 # also, to be used in a script, you need -i which prints annoying
 460 # warnings. instead, use -l in a script to source this file
 461 if type -p yum > /dev/null; then
 462     p() {
 463         if [[ $EUID == 0 ]]; then
 464             yum "$@"
 465         else
 466             sudo yum "$@"
 467         fi
 468     }
 469     pi() {
 470         if [[ $EUID == 0 ]]; then
 471             yum -y install "$@"
 472         else
 473             sudo yum -y install "$@"
 474         fi
 475     }
 476     pf() {
 477         if [[ $EUID == 0 ]]; then
 478             yum search "$@"
 479         else
 480             sudo yum search "$@"
 481         fi
 482     }
 483 else
 484     p() {
 485         if [[ $EUID == 0 ]]; then
 486             aptitude "$@"
 487         else
 488             sudo aptitude "$@"
 489         fi
 490     }
 491     pi() {
 492         if [[ $EUID == 0 ]]; then
 493             aptitude -y install "$@"
 494         else
 495             sudo aptitude -y install "$@"
 496         fi
 497     }
 498     pf() {
 499         if [[ $EUID == 0 ]]; then
 500             aptitude search "$@"
 501         else
 502             sudo aptitude search "$@"
 503         fi
 504     }
 505 fi
 506
 507
 508 # test existence
 509 te() {
 510     local ret=0
 511     for x in "$@"; do
 512         [[ -e "$x" || -L "$x" ]] || ret=1
 513     done
 514     return $ret
 515 }
 516
 517
 518 # fix root file ownership for FILE argument.
 519 # check if parent or grandparent is not root and if the dir of FILE is also
 520 # owned by that user, and change ownership to that user
 521 perm_fix() {
 522     local parent
 523     if [[ $EUID == 0 ]]; then
 524         [[ -e $1 ]] || touch $1
 525         if [[ $(stat -c "%u" "$1") == 0 ]] ; then
 526
 527             argdir=$(getdir "$1")
 528             if [[ $(stat -c "%u" "$argdir") != 0 ]] ; then
 529                 if ! chown "--reference=$argdir" "$1"; then
 530                     echo failed to fix bad ownership file permissons
 531                     return 1
 532                 fi
 533             fi
 534         fi
 535     fi
 536 }
 537
 538 pfind() { #find *$1* in $PATH
 539     [[ $# != 1 ]] && { echo requires 1 argument; return 1; }
 540     local pathArray
 541     IFS=: pathArray=($PATH); unset IFS
 542     find "${pathArray[@]}" -iname "*$1*"
 543 }
 544
 545
 546 pwd() { # do pwd + some other info.
 547     echo "$(ll -d "$PWD")               $USER@$HOSTNAME         $(date +%r)"
 548 }
 549
 550
 551 pwgen() { # generate a random password, with digits & punctuation and without
 552     arg=${1:-50}
 553     head -c 200 /dev/urandom | tr -cd '[:graph:]' | head -c "$arg"
 554     echo
 555     head -c 200 /dev/urandom | tr -cd '[:alnum:]' | head -c "$arg"
 556     echo
 557 }
 558
 559 q() { # start / launch a program in the backround and redir output to null
 560     "$@" &> /dev/null &
 561 }
 562
 563
 564
 565 r() {
 566     exit "$@"
 567 }
 568
 569 # rsync, root is required to keep permissions right.
 570 # rsync  --archive --human-readable --verbose --itemize-changes --checksum \(-ahvic\) \
 571 #                                       --no-times --delete
 572 # basically, make an exact copy, use checksums instead of file times to be more accurate
 573 rl() { rsync -ahvic --delete "$@"; }
 574 # don't delete files on the target end which do not exist on the original end:
 575 rld() { rsync -ahvic "$@"; }
 576 complete -F _rsync -o nospace rld rlt fl
 577 # rl without preserving modification time. for some reason I had this as default before.
 578 # perhaps that reason will come up again and I will document it.
 579 rlt() { rsync -ahvic --delete --no-t "$@"; }
 580
 581
 582
 583 # use sb instead of s is for sudo redirections, eg. sb 'echo "ok fine" > /etc/file'
 584 sb() {
 585     local SUDOD="$PWD"
 586     sudo -i bash -c "$@"
 587 }
 588 complete -F _root_command s sb
 589
 590 # use -ll, less secure but faster.
 591 srm () {
 592     srm -ll "$@"
 593 }
 594
 595 # sudo redo. be aware, this command may not work right on strange distros or earlier software
 596 sr() {
 597     if [[ $# == 0 ]]; then
 598         sudo -E bash -c -l "$(history -p '!!')"
 599     else
 600         echo this command redos last history item. no argument is accepted
 601     fi
 602 }
 603
 604
 605
 606 # log with script. timing is $1.t and script is $1.s
 607 # -l to save to ~/typescripts/
 608 # -t to add a timestamp to the filenames
 609 slog() {
 610     local logdir do_stamp arg_base
 611     (( $# >= 1 )) || { echo "arguments wrong"; return 1; }
 612     logdir="/a/dt/"
 613     do_stamp=false
 614     while getopts "lt" option
 615     do
 616         case $option in
 617             l ) arg_base=$logdir ;;
 618             t ) do_stamp=true ;;
 619         esac
 620     done
 621     shift $(($OPTIND - 1))
 622     arg_base+=$1
 623     [[ -e $logdir ]] || mkdir -p $logdir
 624     $do_stamp && arg_base+=$(date +%F.%T%z)
 625     script -t $arg_base.s 2> $arg_base.t
 626 }
 627 splay() { # script replay
 628     #logRoot="$HOME/typescripts/"
 629     #scriptreplay "$logRoot$1.t" "$logRoot$1.s"
 630     scriptreplay "$1.t" "$1.s"
 631 }
 632
 633
 634
 635 # timer in minutes
 636 tm() {
 637     (sleep $(calc "$@ * 60") && mpv /a/bin/data/alarm.mp3) > /dev/null 2>&1 &
 638 }
 639
 640
 641 ts() { # start editing a new file
 642     [[ $# != 1 ]] && echo "I need a filename." && return 1
 643     local quiet
 644     if [[ $- != *i* ]]; then
 645         quiet=true
 646     fi
 647     if [[ $1 == *.c ]]; then
 648         e '#include <stdio.h>' >"$1"
 649         e '#include <stdlib.h>' >>"$1"
 650         e 'int main(int argc, char * argv[]) {' >>"$1"
 651         e '     printf( "hello world\n");' >>"$1"
 652         e '     return 0;' >>"$1"
 653         e '}' >>"$1"
 654         e "${1%.c}: $1" > Makefile
 655         e "     g++ -ggdb -std=gnu99 -o ${1%.c} $<" >> Makefile
 656         e "#!/bin/bash" >run.sh
 657         e "./${1%.c}" >>run.sh
 658         chmod +x run.sh
 659     elif [[ $1 == *.java ]]; then
 660         e "public class ${1%.*} {" >"$1"
 661         e '     public static void main(String[] args) {' >>"$1"
 662         e '             System.out.println("Hello, world!");' >>"$1"
 663         e '     }' >>"$1"
 664         e '}' >>"$1"
 665
 666     else
 667         echo "#!/bin/bash" > "$1"
 668         chmod +x "$1"
 669     fi
 670     [[ $quiet ]] || g "$1"
 671
 672 }
 673
 674 tx() { # toggle set -x, and the prompt so it doesn't spam
 675     if [[ $- == *x* ]]; then
 676         set +x
 677         PROMPT_COMMAND=prompt_command
 678     else
 679         unset PROMPT_COMMAND
 680         PS1="\w \$ "
 681         set -x
 682     fi
 683 }
 684
 685
 686
 687
 688 if [[ $OS == Windows_NT ]]; then
 689     # cygstart wrapper
 690     cs() {
 691         cygstart "$@" &
 692     }
 693     xp() {
 694         explorer.exe .
 695     }
 696     # launch
 697     o() {
 698         local x=(*$1*)
 699         (( ${#x[#]} > 1 )) && { echo "warning ${#x[#]} matches found"; sleep 1; }
 700         cygstart *$1* &
 701     }
 702 else
 703     o() {
 704         if type gvfs-open &> /dev/null ; then
 705             gvfs-open "$@"
 706         else
 707             xdg-open "$@"
 708         fi
 709         # another alternative is run-mailcap
 710     }
 711 fi
 712
 713
 714 # todo, update this
 715 complete -F _longopt la lower low rlt rld rl lld ts ll dircp ex fcp fct fpst gr
 716
 717
 718
 719 hl() { # history limit. Write extra history to archive file.
 720     local max_lines linecount tempfile
 721     for x in $HISTFILE ${HISTFILE}_archive; do
 722         if [[ -e $x && ! -w $x ]]; then
 723             echo "error: history file $x is not writable."
 724             return 1
 725         fi
 726     done
 727     history -w
 728     if [[ $1 ]]; then
 729         max_lines=$(($1 * 2)) # 2 lines for every history command
 730     else
 731         max_lines=$HISTFILELINES
 732     fi
 733     linecount=$(wc -l < $HISTFILE)
 734     linecount=${linecount:-0}
 735     if (($linecount > $max_lines)); then
 736         prune_lines=$(($linecount - $max_lines))
 737         tempfile=$(mktemp)
 738         [[ $tempfile ]] || { echo mktemp failed; return 1; }
 739         head -$prune_lines $HISTFILE >> ${HISTFILE}a \
 740             && sed -ie "1,${prune_lines}d"  $HISTFILE
 741     fi
 742     perm_fix $HISTFILE
 743     perm_fix ${HISTFILE}_archive
 744 }
 745
 746 # commands to run when bash exits normally
 747 trap "hl; smh" EXIT
 748
 749
 750 # temporary variables to test colorization
 751 # some copied from gentoo /etc/bash/bashrc,
 752 use_color=false
 753 # dircolors --print-database uses its own built-in database
 754 # instead of using /etc/DIR_COLORS.  Try to use the external file
 755 # first to take advantage of user additions.
 756 safe_term=${TERM//[^[:alnum:]]/?}   # sanitize TERM
 757 match_lhs=""
 758 [[ -f ~/.dir_colors   ]] && match_lhs="${match_lhs}$(<~/.dir_colors)"
 759 [[ -f /etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(</etc/DIR_COLORS)"
 760 [[ -z ${match_lhs}    ]] \
 761     && type -P dircolors >/dev/null \
 762     && match_lhs=$(dircolors --print-database)
 763 # test if our $TERM is in the TERM values in dircolor
 764 [[ $'\n'${match_lhs} == *$'\n'"TERM "${safe_term}* ]] && use_color=true
 765
 766
 767 if ${use_color} && [[ $- == *i* ]]; then
 768
 769     if [[ $XTERM_VERSION == Cygwin* ]]; then
 770         get_term_color() {
 771             for x in "$@"; do
 772                 case $x in
 773                     underl) echo -n $'\E[4m' ;;
 774                     bold) echo -n $'\E[1m' ;;
 775                     red) echo -n $'\E[31m' ;;
 776                     green) echo -n $'\E[32m' ;;
 777                     blue) echo -n $'\E[34m' ;;
 778                     cyan) echo -n $'\E[36m' ;;
 779                     yellow) echo -n $'\E[33m' ;;
 780                     purple) echo -n $'\E[35m' ;;
 781                     nocolor) echo -n $'\E(B\E[m' ;;
 782                 esac
 783             done
 784         }
 785
 786     else
 787         get_term_color() {
 788             for x in "$@"; do
 789                 case $x in
 790                     underl) echo -n $(tput smul) ;;
 791                     bold) echo -n $(tput bold) ;;
 792                     red) echo -n $(tput setaf 1) ;;
 793                     green) echo -n $(tput setaf 2) ;;
 794                     blue) echo -n $(tput setaf 4) ;;
 795                     cyan) echo -n $(tput setaf 6) ;;
 796                     yellow) echo -n $(tput setaf 3) ;;
 797                     purple) echo -n $(tput setaf 5) ;;
 798                     nocolor) echo -n $(tput sgr0) ;; # no font attributes
 799                 esac
 800             done
 801         }
 802     fi
 803 else
 804     get_term_color() {
 805         :
 806     }
 807 fi
 808 # Try to keep environment pollution down, EPA loves us.
 809 unset safe_term match_lhs use_color
 810
 811
 812
 813
 814
 815
 816 ###############
 817 # prompt ######
 818 ###############
 819
 820
 821 if [[ $- == *i* ]]; then
 822     # git branch/status prompt function
 823     if [[ $OS != Windows_NT ]]; then
 824         GIT_PS1_SHOWDIRTYSTATE=true
 825     fi
 826     # arch source location
 827     [[ -r /usr/share/git/git-prompt.sh ]] && source /usr/share/git/git-prompt.sh
 828     # fedora/debian source
 829     [[ -r /usr/share/git-core/contrib/completion/git-prompt.sh ]] && source /usr/share/git-core/contrib/completion/git-prompt.sh
 830
 831     # in case we didn't source git-prompt.sh
 832     if ! declare -f __git_ps1 > /dev/null; then
 833         __git_ps1() {
 834             :
 835         }
 836     fi
 837
 838     # this needs to come before next ps1 stuff
 839     if [[ $BASH_VERSION == [456789]* ]]; then
 840         shopt -s autocd
 841         shopt -s globstar
 842         shopt -s dirspell
 843         PS1='\w'
 844         if [[ $- == *i* ]]  && [[ ! $INSIDE_EMACS ]]; then
 845             PROMPT_DIRTRIM=2
 846             bind -m vi-command B:shell-backward-word
 847             bind -m vi-command W:shell-forward-word
 848         fi
 849     else
 850         PS1='\W'
 851     fi
 852
 853     if [[ $SSH_CLIENT ]]; then
 854         PS1="\h $PS1"
 855     fi
 856
 857     prompt_command() {
 858         local return=$? # this MUST COME FIRST
 859         local psc pst
 860         local ps_char ps_color
 861         unset IFS
 862         history -a # save history
 863         history -n # read any new history
 864         if [[ ! DESKTOP_SESSION == xmonad && $TERM == *(screen*|xterm*|rxvt*) ]]; then
 865             # from the screen man page
 866             if [[ $TERM == screen* ]]; then
 867                 local title_escape="\033]..2;"
 868             else
 869                 local title_escape="\033]0;"
 870             fi
 871             echo -ne "$title_escape${PWD/#$HOME/~}  $USER@$HOSTNAME\007"
 872         fi
 873
 874         case $return in
 875             0) ps_color="$(get_term_color blue)"
 876                ps_char='\$'
 877                ;;
 878             1) ps_color="$(get_term_color green)"
 879                ps_char=$return
 880                ;;
 881             *) ps_color="$(get_term_color yellow)"
 882                ps_char=$return
 883                ;;
 884         esac
 885         if [[ ! -O . ]]; then # not owner
 886             if [[ -w . ]]; then # writable
 887                 ps_color="$(get_term_color bold red)"
 888             else
 889                 ps_color="$(get_term_color bold green)"
 890             fi
 891         fi
 892         PS1="${PS1/%!(*[wW]*)}$(__git_ps1 ' (%s)') \[$ps_color\]$ps_char\[$(get_term_color nocolor)\] "
 893     }
 894     PROMPT_COMMAND=prompt_command
 895 fi
 896
 897
 898 ###########################################
 899 # stuff that makes sense to be at the end #
 900 ###########################################
 901 if [[ "$SUDOD" ]]; then
 902     cd "$SUDOD"
 903 elif [[ -d /a ]] && [[ $PWD == $HOME ]] && [[ $- == *i* ]]; then
 904     cd /a
 905 fi
 906
 907
 908 # best practice
 909 unset IFS
 910
 911
 912 # if someone exported $SOE, catch errors
 913 if [[ $SOE ]]; then
 914     errcatch
 915 fi