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