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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 "/usr/local/opt/coreutils/libexec" ]; then
83 path_start="$path_start:/usr/local/opt/coreutils/libexec/gnubin"
84 manpath_start="$manpath_start:/usr/local/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 if [ "$UNAME" = SunOS ]; then
264 # Solaris: use GNU versions of coreutils
265 test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep"
266 test -x /usr/gnu/bin/sed && alias sed="/usr/gnu/bin/sed"
267 test -x /usr/gnu/bin/awk && alias awk="/usr/gnu/bin/awk"
268 fi
269
270 # ---------------------------------------------------------------------------
271 # BASH COMPLETION
272 # ---------------------------------------------------------------------------
273
274 test -z "$BASH_COMPLETION" && {
275 bash=${BASH_VERSION%.*}; bmajor=${bash%.*}; bminor=${bash#*.}
276 test -n "$PS1" && test $bmajor -gt 1 && {
277 # search for a bash_completion file to source
278 for f in /usr/local/etc/bash_completion \
279 /usr/pkg/etc/bash_completion \
280 /opt/local/etc/bash_completion \
281 /etc/bash_completion \
282 /etc/bash/bash_completion
283 do
284 test -f $f && {
285 . $f
286 break
287 }
288 done
289 }
290 unset bash bmajor bminor
291 }
292
293 # restore some key environment variables which may have been unset
294 # by bash_completion script
295 : ${HOME=~}
296 : ${LOGNAME=$(id -un)}
297 : ${UNAME=$(uname)}
298
299 # override and disable tilde expansion
300 _expand() {
301 return 0
302 }
303
304 # ---------------------------------------------------------------------------
305 # LS AND DIRCOLORS
306 # ---------------------------------------------------------------------------
307
308 # we always pass these to ls(1)
309 LS_COMMON="-p"
310
311 # if the dircolors utility is available, set that up for ls
312 dircolors="$(type -P gdircolors dircolors | head -1)"
313 test -n "$dircolors" && {
314 COLORS=/etc/DIR_COLORS
315 test -e "/etc/DIR_COLORS.$TERM" && COLORS="/etc/DIR_COLORS.$TERM"
316 test -e "$HOME/.dircolors" && COLORS="$HOME/.dircolors"
317 test ! -e "$COLORS" && COLORS=
318 eval `$dircolors --sh $COLORS`
319 }
320 unset dircolors
321
322 # enable color ls output if available
323 test -n "$COLORS" &&
324 LS_COMMON="--color=auto $LS_COMMON"
325
326 # setup the main ls alias if we've established common args
327 test -n "$LS_COMMON" &&
328 alias ls="command ls $LS_COMMON"
329
330 # setup color grep output if available
331 if [ -n "$COLORS" ]; then
332 case "$UNAME" in
333 "SunOS")
334 test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep --color=always"
335 test -x /opt/local/bin/grep && alias grep="/opt/local/bin/grep --color=always"
336 ;;
337 *)
338 alias grep="command grep --color=always"
339 ;;
340 esac
341 # older versions of grep only support a singular highlight color
342 export GREP_COLOR='1;32'
343 # newer versions of grep have more flexible color configuration
344 export GREP_COLORS='fn=36:ln=33:ms=1;32'
345 fi
346
347 # ---------------------------------------------------------------------------
348 # MISC FUNCTIONS
349 # ---------------------------------------------------------------------------
350
351 # set 'screen' window title
352 settitle_screen() {
353 printf "\033k%s\033\\" "$@"
354 }
355 # set 'xterm' window title
356 settitle_window() {
357 printf "\033]0;%s\007" "$@"
358 }
359
360 # push SSH public key to another box
361 push_ssh_cert() {
362 local _host
363 test -f ~/.ssh/id_rsa.pub || ssh-keygen -t rsa -b 4096
364 for _host in "$@";
365 do
366 echo $_host
367 ssh $_host 'cat >> ~/.ssh/authorized_keys' < ~/.ssh/id_rsa.pub
368 done
369 }
370
371 # ---------------------------------------------------------------------------
372 # PATH MANIPULATION FUNCTIONS
373 # ---------------------------------------------------------------------------
374
375 # Usage: pls [<var>]
376 # List path entries of PATH or environment variable <var>.
377 pls () { eval echo \$${1:-PATH} | tr ':' '\n'; }
378
379 # Usage: ppop [-n <num>] [<var>]
380 # Pop <num> entries off the end of PATH or environment variable <var>.
381 ppop () {
382 local n=1
383 [ "$1" = "-n" ] && { n=$2; shift 2; }
384 local i=0 var=${1:-PATH}
385 local list=$(eval echo \$$var)
386 while [ $i -lt $n ]; do
387 list=${list%:*}
388 i=$(( i + 1 ))
389 done
390 eval "$var='$list'"
391 }
392
393 # Usage: ppush <path> [<var>]
394 # Push an entry onto the end of PATH or enviroment variable <var>.
395 ppush () {
396 local var=${2:-PATH}
397 local list=$(eval echo \$$var)
398 local i=0 dir=""
399 IFS=':' read -a dirs <<< "$1"
400 for ((i=0; i<${#dirs[@]}; i++)); do
401 dir=$(eval echo "${dirs[$i]}")
402 [ ! -d "$dir" ] && continue
403 [ -n "$list" ] && list="$list:$dir" || list="$dir"
404 done
405 eval "$var='$list'"
406 }
407
408 # Usage: pinsert <path> [<var>]
409 # Push an entry onto the start of PATH or enviroment variable <var>.
410 pinsert () {
411 local var=${2:-PATH}
412 local list=$(eval echo \$$var)
413 local i=0 dir=""
414 IFS=':' read -a dirs <<< "${1}"
415 for ((i=${#dirs[@]}-1; i>=0; i--)); do
416 dir=$(eval echo "${dirs[$i]}")
417 [ ! -d "$dir" ] && continue
418 [ -n "$list" ] && list="$dir:$list" || list="$dir"
419 done
420 eval "$var='$list'"
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: puniq [<pathlist>]
428 # Remove duplicate entries from a PATH style value while retaining
429 # the original order. Use PATH if no <path> is given.
430 #
431 # Example:
432 # $ puniq /usr/bin:/usr/local/bin:/usr/bin
433 # /usr/bin:/usr/local/bin
434 puniq () { echo "$1" | tr ':' '\n' | grep -v "^$" | nl | sort -u -k 2,2 | sort -n | cut -f 2- | paste -s -d ':' -; }
435
436 # ---------------------------------------------------------------------------
437 # USER SHELL ENVIRONMENT
438 # ---------------------------------------------------------------------------
439
440 # source ~/.shenv now if it exists
441 test -r ~/.shenv &&
442 . ~/.shenv
443
444 # condense PATH entries
445 PATH=$(puniq "$PATH")
446 MANPATH=$(puniq "$MANPATH")
447
448 # use the color prompt by default when interactive
449 test -n "$PS1" &&
450 prompt_color
451
452 # fzf
453 export FZF_DEFAULT_COMMAND='rg --files --no-ignore --hidden --follow -g "!{.git,node_modules,*.swp,.venv}/*" 2> /dev/null'
454 export FZF_DEFAULT_OPTS='--bind J:down,K:up --reverse --ansi --multi'
455
456 # ---------------------------------------------------------------------------
457 # MOTD / FORTUNE
458 # ---------------------------------------------------------------------------
459
460 test -n "$INTERACTIVE" -a -n "$LOGIN" && {
461 # get current uname and uptime (if exists on this host)
462 # strip any leading whitespace from uname and uptime commands
463 t_uname="$(test -n "`type -P uname`" && uname -npsr | sed -e 's/^\s+//')"
464 t_uptime="$(test -n "`type -P uptime`" && uptime | sed -e 's/^\s+//')"
465 if [ -n "$t_uname" ] || [ -n "$t_uptime" ]; then
466 echo " --"
467 test -n "$t_uname" && echo $t_uname
468 test -n "$t_uptime" && echo $t_uptime
469 echo " --"
470 fi
471 unset t_uname t_uptime
472 }
473
474 # vim: ts=4 sts=4 shiftwidth=4 expandtab