#!/bin/bash
-# Copyright (C) 2019 Ian Kelling
-# SPDX-License-Identifier: AGPL-3.0-or-later
+# I, Ian Kelling, follow the GNU license recommendations at
+# https://www.gnu.org/licenses/license-recommendations.en.html. They
+# recommend that small programs, < 300 lines, be licensed under the
+# Apache License 2.0. This file contains or is part of one or more small
+# programs. If a small program grows beyond 300 lines, I plan to switch
+# its license to GPL.
+
+# Copyright 2024 Ian Kelling
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+# http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
# this gets sourced. shebang is just for file mode detection
# Use source ~/.bashrc instead of doing bash -l when running a script
TERM=xterm-256color
fi
- if [[ $TERM == alacritty && ! -e /usr/share/terminfo/a/alacritty ]]; then
- # todo: we should try installing the alacritty terminfo if it is not found
- # https://github.com/alacritty/alacritty/issues/2838
- TERM=xterm-256color
- fi
-
- # copying from the alacritty example above,
- if [[ $TERM == xterm-kitty ]]; then
- if [[ ! -e /usr/share/terminfo/x/xterm-kitty ]]; then
- TERM=xterm-256color
- else
- if [[ -e /a/opt/kitty/shell-integration/bash/kitty.bash ]]; then
- KITTY_SHELL_INTEGRATION=t
- source /a/opt/kitty/shell-integration/bash/kitty.bash
- fi
- fi
- fi
-
# todo: not sure this works in sakura
#stty werase undef
#bind "\C-w": kill-region
# sakura == xterm-256color
# konsole == xterm
- if [[ $TERM != xterm-kitty && $TERM == xterm* ]]; then
+ if [[ $TERM == xterm* ]]; then
# control + arrow keys. for other terminals, see http://unix.stackexchange.com/questions/10806/how-to-change-previous-next-word-shortcut-in-bash
bind '"\e[1;5C": shell-forward-word' 2>/dev/null
bind '"\e[1;5D": shell-backward-word' 2>/dev/null
fi
-case $TERM in
- # fixup broken backspace in chroots
- xterm-kitty|alacritty)
- chroot() {
- TERM=xterm-256color command chroot "$@"
- }
- ;;
-esac
-
export BC_LINE_LENGTH=0
# ansible option
export LESS=RXij12
export SYSTEMD_LESS=$LESS
+
export NNN_COLORS=2136
export SL_FILES_DIR=/b/ds/sl/.iank
fi
fi
+# go exists here
+path-add --ifexists /usr/local/go/bin
+
mysrc() {
local path dir file
fi
# -q = quiet
journalctl -qn2 -f -u "$cmd_name" &
+ jr_pid=$!
# Trial and error of time needed to avoid missing initial lines.
# .5 was not reliable. 1 was not reliable. 2 was not reliable
sleep 4
- jr_pid=$!
systemd-run --unit "$cmd_name" --wait --collect "$cmd" "$@" || ret=$?
# The sleep lets the journal output its last line
# before the prompt comes up.
done
}
+screenrtp() {
+
+ local ip port xoffset
+ read -r ip port xoffset <<<"$@"
+
+ setxenv
+
+ if [[ ! $port ]]; then
+ port=9999
+ fi
+
+ while true; do
+ # By default, plugged in screen goes to the right side, so we need an
+ # offset that is the same as the laptop's x resolution. If we are in
+ # mirror mode, then we don't need an offset.
+ if [[ ! $xoffset ]]; then
+ xoffset=0
+ laptop_x=$(xrandr | awk '$1 == "LVDS-1" {print $4}' | sed 's/x.*//') || { sleep 1; continue; }
+ total_x=$(xdpyinfo| awk '$1 == "dimensions:" {print $2}' | sed 's/x.*//') || { sleep 1; continue; }
+ screen2_res=$(xrandr | awk '$2 == "connected" && $1 != "LVDS-1" { print $3 }' | sed 's/+.*//')
+ if (( laptop_x < total_x )); then
+ xoffset=$laptop_x
+ fi
+ fi
+
+ m ffmpeg -probesize 50M -thread_queue_size 50 \
+ -video_size $screen2_res -f x11grab -framerate 30 -i :0.0+$xoffset.0 \
+ -vcodec libx264 -g 1 -tune zerolatency -preset ultrafast -pix_fmt yuv420p -x264-params repeat-headers=1 \
+ -f rtp_mpegts rtp://$ip:$port ||:
+
+
+ sleep 1
+ done
+}
+
+setxenv() {
+ if [[ ! $DISPLAY ]]; then
+ export DISPLAY=:0.0
+ fi
+ if [[ ! $XAUTHORITY ]]; then
+ export XAUTHORITY=$HOME/.Xauthority
+ fi
+}
+
#### end fsf section
}
_khfix-common() {
- local host ip port file key tmp
- read -r host ip port < <(timeout -s 9 2 ssh -oBatchMode=yes -oControlMaster=no -oControlPath=/ -v $1 |& sed -rn "s/debug1: Connecting to ([^ ]+) \[([^\]*)] port ([0-9]+).*/\1 \2 \3/p" ||: )
+ local host ip port file key tmp ssh_host alias
+ ssh_host=$1
+ {
+ read -r host ip port
+ read -r alias;
+ # note ":graph:" is needed or else we get a trailing \r out of ssh,
+ # dunno why. web search says terminals add \r, so I tried adding -T
+ # to turn off psuedo terminal, but it didnt help.
+ } < <(timeout -s 9 2 ssh -TN -oBatchMode=yes -oControlMaster=no -oControlPath=/ -v $ssh_host |&
+ sed -rn "s/debug1: Connecting to ([^ ]+) \[([^\]*)] port ([0-9]+).*/\1 \2 \3/p;
+s/^debug1: using hostkeyalias: ([[:graph:]]*).*/\1/p" ||: )
file=$(readlink -f ~/.ssh/known_hosts)
if [[ ! $ip ]]; then
echo "khfix: ssh failed"
return 1
fi
+ ip_entry=$ip
+ host_entry=$host
+ if [[ $alias ]]; then
+ host_entry="$alias"
+ fi
if [[ $port != 22 ]]; then
ip_entry="[$ip]:$port"
- host_entry="[$host]:$port"
- else
- ip_entry=$ip
- host_entry=$host
+ if [[ ! $alias ]]; then
+ host_entry="[$host]:$port"
+ fi
fi
- if [[ $host != "$ip" ]]; then
+ if [[ $host_entry != "$ip_entry" ]]; then
tmp=$(mktemp)
ssh-keygen -F "$host_entry" -f $file >$tmp || [[ $? == 1 ]] # 1 when it doesnt exist in the file
if [[ -s $tmp ]]; then
key=$(sed -r 's/^.*([^ ]+ +[^ ]+) *$/\1/' $tmp)
+ else
+ echo "khfix WARNING: did not find host entry:$host_entry in known_hosts"
fi
rm $tmp
if [[ $key ]]; then
ssh-keygen -F "$ip_entry" -f $file >$tmp || [[ $? == 1 ]]
if [[ -s $tmp ]]; then
key=$(sed -r 's/^.*([^ ]+ +[^ ]+) *$/\1/' $tmp)
+ else
+ echo "khfix WARNING: did not find ip entry:$ip_entry in known_hosts"
fi
rm $tmp
if [[ $key ]]; then
grep -Fv "$key" "$file" | sponge "$file"
fi
- ll ~/.ssh/known_hosts
}
-khfix-r() { # known hosts fix + root
+khfix-r() { # known hosts fix without syncing to root user
_khfix-common "$@" || return 1
ssh $1 :
- rootsshsync
}
khfix() {
_khfix-common "$@" || return 1
ssh $1 :
+ rootsshsync
}
# copy path into clipboard
a() {
local x
x=$(readlink -nf "${1:-$PWD}")
- # yes, its kinda dumb that xclip/xsel cant do this in one invocation
- echo -n "$x" | xclip -selection clipboard
- echo -n "$x" | xclip
+ # yes, its kinda dumb that xclip/xsel cant do this in one invocation.
+ # And, summarizing this:
+ # https://askubuntu.com/questions/705620/xclip-vs-xsel
+ # xclip has a few more options. xclip has a bug in tmux / forwarded x sessions.
+ cbs "$x"
+}
+
+# clipboard a string (into selection & clipboard buffer)
+cbs() {
+ # yes, its kinda dumb that xclip/xsel cant do this in one invocation.
+ # And, summarizing this:
+ # https://askubuntu.com/questions/705620/xclip-vs-xsel
+ # xclip has a few more options. xclip has a bug in tmux / forwarded x sessions.
+ printf "%s" "$*" | xclip -selection clipboard
+ printf "%s" "$*" | xclip
}
# a1 = awk {print $1}
sed -rn '/testignore|jtuttle|eximbackup/!s/^[^ ]+ ([^ ]+) [^ ]+ [^ ]+ <= ([^ ]+).* id=([^ ]+) T="(.*)" from (<[^ ]+> .*$)/\1 \5\n \3\n \4/p' <${1:-/var/log/exim4/mainlog}
}
etailin() {
- tail -F /var/log/exim4/mainlog | sed -rn '/testignore|jtuttle|eximbackup/!s/^[^ ]+ ([^ ]+) [^ ]+ [^ ]+ <= ([^ ]+).*T="(.*)" from (<[^ ]+> .*$)/\1 \4\n \3/p'
+ local -a tail_arg
+ tail_arg=(-n500)
+ if [[ $1 ]]; then
+ tail_arg=($@)
+ fi
+ tail "${tail_arg[@]}" -F /var/log/exim4/mainlog | sed -rn '/testignore|jtuttle|eximbackup/!s/^[^ ]+ ([^ ]+) [^ ]+ [^ ]+ <= ([^ ]+).*T="(.*)" from (<[^ ]+> .*$)/\1 \4\n \3/p'
}
done < <(find "$@" -print0);
}
+# shellcheck disable=SC2120
faf() { # find all files. use -L to follow symlinks
find "$@" -not \( -name .svn -prune -o -name .git -prune \
-o -name .hg -prune -o -name .editor-backups -prune \
"$@" &> /a/tmp/gtmp
g /a/tmp/gtmp
}
-# g command substitution
+# g command substitution.
gc() {
+ # shellcheck disable=SC2046 # i want word splitting for this hackery
g $("$@")
}
file_prefix=$2
file_suffix=$3
tmp="${file_prefix##*[[:alnum:]]}"
- targetf="${file_prefix%$tmp}"
+ targetf="${file_prefix%"$tmp"}"
echo targetf: $targetf
github-release-dl "$@"
files=(./*)
/usr/bin/nagstamon &
}
-# profanity screen
+# profanity tmux
profsrc() {
- screen -RD -S profanity
+ screen -L profanity a
}
# i dont want to wait for konsole to exit...
c "$(mktemp -d)"
pkg=$1
# shellcheck disable=SC2012
- cached=$(ls -t /var/cache/apt/archives/${pkg}_* | tail -n1 2>/dev/null) ||:
+ cached=$(ls -t /var/cache/apt/archives/${pkg}_* 2>/dev/null | tail -n1 2>/dev/null) ||:
if [[ $cached ]]; then
m cp $cached .
else
systemctl -n 40 status "$@"
}
+# assume last arg is a service and we want to tail its log.
+serj() {
+ local service jr_pid ret
+ ret=0
+ service="${*: -1}"
+ journalctl -qn2 -f -u "$service" &
+ sleep 3
+ s systemctl "$@" || ret=$?
+ sleep .5
+ kill %%
+ (( ret == 0 )) || return $ret
+}
+
seru() { systemctl --user "$@"; }
# like restart, but do nothing if its not already started
srestart() {
systemctl list-unit-files | rg "$@"
}
+# check whether we generally want to do sk on the file
+sk-p() {
+ [[ ! -L $f ]] && istext "$1" && [[ $(head -n1 "$1" 2>/dev/null) == '#!/bin/bash'* ]]
+}
sk() {
- # disable a warning with:
- # shellcheck disable=SC2206 # reasoning
-
- # see bash-template/style-guide.md for justifications
-
- local quotes others
+ # see https://savannah.gnu.org/maintenance/fsf/bash-style-guide/ for justifications
+ local quotes others ret
quotes=2048,2068,2086,2206,2254
- others=2029,2032,2033,2054,2164,
- shellcheck -W 999 -x -e $quotes,$others "$@" || return $?
+ others=2029,2032,2033,2054,2164
+ shellcheck -x -W 999 -e $quotes,$others "$@" || ret=$?
+ if (( ret >= 1 )); then
+ echo "A template comment to disable is now in clipboard. eg: # shellcheck disable=SC2206 # reason"
+ cbs "# shellcheck disable=SC"
+ return $ret
+ fi
}
+
# sk with quotes. For checking scripts that we expect to take untrusted
# input in order to verify we quoted vars.
skq() {
shellcheck -W 999 -x -e $others "$@" || return $?
}
-skgit() {
+# sk on all modified files in current git repo
+skmodified() {
local f
for f in $(i s | awk '$1 == "modified:" {print $2}'); do
- if istext "$f" && [[ $(head -n1 "$f" 2>/dev/null) == '#!/bin/bash'* ]]; then
+ if sk-p "$f"; then
sk $f ||:
fi
done
}
+
+# sk on all the files in current git repo
+skgit() {
+ local f toplevel orig_dir tmp
+ local -a ls_files sk_files
+ toplevel=$(git rev-parse --show-toplevel)
+ if [[ $PWD != "$toplevel" ]]; then
+ orig_dir=$PWD
+ cd $toplevel
+ fi
+ # tracked & untracked files
+ tmp=$(git ls-files && git ls-files --others --exclude-standard)
+ mapfile -t ls_files <<<"$tmp"
+ for f in "${ls_files[@]}"; do
+ if sk-p "$f"; then
+ sk_files+=("$f")
+ fi
+ done
+ sk "${sk_files[@]}"
+ if [[ $orig_dir ]]; then
+ cd $orig_dir
+ fi
+}
+
+
# sl: ssh, but firsh rsync our bashrc and related files to a special
# directory on the remote host if needed.
slr() {
sl --rsync "$@"
}
-sss() { # ssh solo
- sl -oControlMaster=no -oControlPath=/ "$@"
+
+
+# ssh solo
+#
+# WARNING: If you are trying to use -i, remember that keys added to
+# agent previously will still be tried. Use ssh-add -D to remove all
+# keys from the agent.
+sss() {
+ ssh -oControlMaster=no -oControlPath=/ "$@"
}
# kill off old shared socket then ssh
ssk() {
ccomp ssh sl slr sss ssk
# plain ssh
ssh() {
- if [[ $TERM == alacritty || $TERM == xterm-kitty ]]; then
- TERM=xterm-256color LC_USEBASHRC=t command ssh "$@"
- else
- LC_USEBASHRC=t command ssh "$@"
- fi
+ LC_USEBASHRC=t command ssh "$@"
}
pson() {
PROMPT_COMMAND=(prompt-command)
if [[ $TERM == *(screen*|xterm*|rxvt*) ]]; then
- trap 'settitle "$BASH_COMMAND"' DEBUG
+ trap 'auto-window-title "$BASH_COMMAND"' DEBUG
fi
}
}
m() { printf "%s\n" "$*"; "$@"; }
+m2() { printf "%s\n" "$*" >&2; "$@"; }
# update file. note: duplicated in mail-setup.
# updates $ur u result to true or false
}
catnew() {
- local dir file
+ local dir file _
dir="$1"
+ # shellcheck disable=SC2030
inotifywait -m "$dir" -e create -e moved_to | while read -r _ _ file; do
hr
cat "$dir/$file"
done
}
+# note, there is also the tool gron which is meant for this, but
+# this is good enough to not bother installing another tool
+jq-lines() {
+ # https://stackoverflow.com/questions/59700329/how-to-print-path-and-key-values-of-json-file-using-jq
+ jq --stream -r 'select(.[1]|scalars!=null) | "\(.[0]|join(".")): \(.[1]|tojson)"' "$@"
+}
tsr() { # ts run
"$@" |& ts || return $?
# https://github.com/trapd00r/LS_COLORS
# I would like if there was something similar for light.
+ # https://www.bigsoft.co.uk/blog/2008/04/11/configuring-ls_colors
+ # change the hard to read turqouise.
+ # defaults dircolors --print-database.
+
# the default bold green is too light.
# this explains the codes: https://gist.github.com/thomd/7667642
- export LS_COLORS=ex=1
+ export LS_COLORS="ex=1:ln=00;31"
term_bold="$(tput bold)"
term_red="$(tput setaf 1)"
# so I've thrown a bunch of things at the wall to speed it up.
prompt-command() {
local return=$? # this MUST COME FIRST
+
+ # all usable colors:
+ # black
+ # green nonzero exit (pri 1)
+ # purple default
+ # purple bold
+ # red pwd different owner & group & not writable (pri 2)
+ # red bold pwd different owner & group & writable (pri 2)
+ # yellow
+
local ps_char ps_color
unset IFS
history -a # save history
fi
- case $return in
- 0) ps_color="$term_purple"
- ps_char='\$'
- ;;
- *) ps_color="$term_green"
- ps_char="$return \\$"
- ;;
- esac
+ ps_color="$term_purple"
+ ps_char='\$'
if [[ ! -O . ]]; then # not owner
if [[ -w . ]]; then # writable
ps_color="$term_bold$term_red"
else
- ps_color="$term_bold$term_green"
+ ps_color="$term_red"
fi
fi
+ if [[ $return != 0 ]]; then
+ ps_color="$term_green"
+ ps_char="$return \\$"
+ fi
+
# faster than sourceing the file im guessing
if [[ -e /dev/shm/iank-status && ! -e /tmp/quiet-status ]]; then
eval "$(< /dev/shm/iank-status)"
fi
# make the titlebar be the last command and the current directory.
- settitle () {
+ auto-window-title () {
# These are some checks to help ensure we dont set the title at
# condition from the screen man page i think.
# note: duplicated in tx()
if [[ $TERM == *(screen*|xterm*|rxvt*) ]]; then
- trap 'settitle "$BASH_COMMAND"' DEBUG
+ trap 'auto-window-title "$BASH_COMMAND"' DEBUG
else
trap DEBUG
fi
fi
+
+lp22viewers() {
+ v=0
+ roomv=(0 0)
+ rooms=(jupiter saturn)
+ for ip in 209.51.188.25 live.fsf.org; do
+ out=$(curl -sS --insecure https://$ip/)
+ for i in 0 1 2; do
+ room=${rooms[i]}
+ while read -r n; do
+ v=$((v+n))
+ roomv[$i]=$(( ${roomv[$i]} + n ))
+ done < <(printf "%s\n" "$out" | grep -Po "$room.*?current[^0-9]*[0-9]*" | grep -o '[0-9]*$' )
+ done
+ done
+ printf "total: %s " $v
+ for i in 0 1; do
+ room=${rooms[i]}
+ printf "$room: %s " "${roomv[$i]}"
+ done
+ echo
+}
+
+arpflush() {
+ local default_route_dev
+ default_route_dev=$(ip r show default | sed 's/.*dev \([^ ]*\).*/\1/' | head -n1)
+ m s ip n flush dev "$default_route_dev"
+}
+
+dsh() {
+ command dsh -c "$@"
+}
+
# * stuff that makes sense to be at the end