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