X-Git-Url: https://feistymeow.org/gitweb/?a=blobdiff_plain;f=scripts%2Fcore%2Ffunctions.sh;h=6cf06befe3dab0933527c0aee82bb9c59caca2d1;hb=870c9f51bee45e973d2c2cb4f8a9eec906d44bcc;hp=44f6155df5417f846af6e6110af554c6c007e271;hpb=0be97f8285af48152288e0c2cfbbc1306fd7d2ef;p=feisty_meow.git diff --git a/scripts/core/functions.sh b/scripts/core/functions.sh index 44f6155d..6cf06bef 100644 --- a/scripts/core/functions.sh +++ b/scripts/core/functions.sh @@ -1,4 +1,4 @@ -#!/bin/bash +#!/usr/bin/env bash # This defines some general, useful functions. @@ -32,19 +32,34 @@ if [ -z "$skip_all" ]; then if [ -z "$sep" ]; then sep='_'; fi date +"%Y$sep%m$sep%d$sep%H%M$sep%S" | tr -d '/\n/' } + + # a slightly different but also handy time and date function. this is + # intended for prefixing on log lines, so that each line has the time it + # occurred as the first element. + function timestamper() { + date +"[%Y-%m-%d %H:%M:%S] " | tr -d '/\n/' + } # a wrapper for the which command that finds items on the path. some OSes # do not provide which, so we want to not be spewing errors when that # happens. function whichable() { - to_find="$1"; shift - local WHICHER="$(\which which 2>/dev/null)" + local to_find="$1"; shift + local WHICHER="$(/usr/bin/which which 2>/dev/null)" +#>&2 echo "got whicher as: $WHICHER" if [ $? -ne 0 ]; then # there is no which command here. we produce nothing due to this. echo + return 2 fi - echo $($WHICHER $to_find 2>/dev/null) + local sporkenz # must be defined local here, before call, or we don't get exit value?! + sporkenz=$($WHICHER "$to_find" 2>/dev/null) +#>&2 echo "broken with this line, but here is exit val: $?" + local err=$? +#>&2 echo "got whicher as: $WHICHER" + echo $sporkenz + return $err } # makes a directory of the name specified and then tries to change the @@ -68,6 +83,7 @@ if [ -z "$skip_all" ]; then # makes the status of pipe number N (passed as first parameter) into the # main return value (i.e., the value for $?). this is super handy to avoid # repeating the awkward looking code below in multiple places. + # the numbering starts at zero, for the first item at the head of the pipe. function promote_pipe_return() { ( exit ${PIPESTATUS[$1]} ) @@ -214,51 +230,69 @@ if [ -z "$skip_all" ]; then function ssh() { local args=($@) - # we remember the old terminal title, then force the TERM variable to a more generic - # version for the other side (just 'linux'); we don't want the remote side still - # thinking it's running xterm. - save_terminal_title - -#hmmm: why were we doing this? it scorches the user's logged in session, leaving it without proper terminal handling. -# # we save the value of TERM; we don't want to leave the user's terminal -# # brain dead once we come back from this function. -# local oldterm="$TERM" -# export TERM=linux - - /usr/bin/ssh -Y -C "${args[@]}" - -# # restore the terminal variable also. -# TERM="$oldterm" + save_terminal_title # remember the current terminal title. + /usr/bin/ssh -C "${args[@]}" +#hmmm: removed -Y flag because considered dangerous to trust remote hosts to not abuse our X session. + restore_terminal_title + } + # this version of ssh preserves the use of the -Y flag for when X forwarding is needed. + function yssh() + { + local args=($@) + save_terminal_title # remember the current terminal title. + /usr/bin/ssh -Y "${args[@]}" restore_terminal_title - if [ ! -z "$DEBUG_FEISTY_MEOW" ]; then - echo TERM title restored to prior value - fi } ############## # locates a process given a search pattern to match in the process list. - # supports a single command line flag style parameter of "-u USERNAME"; - # if the -u flag is found, a username is expected afterwards, and only the - # processes of that user are considered. + # + # + the -u flag specifies a user name, e.g. "-u joe", which causes only + # the processes of that user "joe" to be considered. + # + # + the -x flag specifies a pattern to exclude from the list, e.g. "-x pszap.sh" + # would ignore any processes that mention the phrase "pszap.sh". function psfind() { + local user_flag="-e" + # default user flag is for all users. + local excluder="ScrengeflebbitsAPhraseWeNeverExpecttomatchanythingYO298238" + # for our default, pick an exclusion string we would never match. + + local found_flag=1 + while [ $found_flag -eq 1 ]; do + # reset our sentinel now that we're safely in our loop. + found_flag=0 + + # save the first argument, since we're going to shift the args. + local arg1="$1" + if [ "$arg1" == "-u" ]; then + # handle the user flag. + user_flag="-u $2" +#echo "found a -u parm and user=$2" + found_flag=1 # signal that we found one. + # skip these two arguments, since we've consumed them. + shift + shift + elif [ "$arg1" == "-x" ]; then + # handle the exclusion flag. + excluder="$2" +#echo "found a -x parm and excluder=$excluder" + found_flag=1 # signal that we found one. + # skip these two arguments, since we've consumed them. + shift + shift + fi + done + + # now that we've yanked any flags out, we can pull the rest of the + # arguments in as patterns to seek in the process list. local -a patterns=("${@}") #echo ==== #echo patterns list is: "${patterns[@]}" #echo ==== - local user_flag - if [ "${patterns[0]}" == "-u" ]; then - user_flag="-u ${patterns[1]}" -#echo "found a -u parm and user=${patterns[1]}" - # void the two elements with that user flag so we don't use them as patterns. - unset patterns[0] patterns[1]= - else - # select all users. - user_flag="-e" - fi - local PID_DUMP="$(mktemp "$TMP/zz_pidlist.XXXXXX")" local -a PIDS_SOUGHT @@ -266,15 +300,18 @@ if [ -z "$skip_all" ]; then # gets cygwin's (god awful) ps to show windoze processes also. local EXTRA_DOZER_FLAGS="-W" # pattern to use for peeling off the process numbers. - local pid_finder_pattern='s/ *\([0-9][0-9]*\) *.*$/\1/p' - +# local pid_finder_cmd="awk -- '{ print \$4; }'" + local field_number=4 else # flags which clean up the process listing output on unixes. # apparently cygwin doesn't count as a type of unix, because their # crummy specialized ps command doesn't support normal ps flags. local EXTRA_UNIX_FLAGS="-o pid,args" # pattern to use for peeling off the process numbers. - local pid_finder_pattern='s/^[[:space:]]*\([0-9][0-9]*\).*$/\1/p' +# local pid_finder_cmd="sed -n -e \\'s/^[[:space:]]*\([0-9][0-9]*\).*$/\\\\1/p\\'" +#echo pidfinder: $pid_finder_cmd +# local pid_finder_cmd="awk -- '{ print \$1; }'" + local field_number=1 fi /bin/ps $EXTRA_DOZER_FLAGS $EXTRA_UNIX_FLAGS $user_flag | tail -n +2 >$PID_DUMP @@ -287,9 +324,11 @@ if [ -z "$skip_all" ]; then # ids out of the results. local i for i in "${patterns[@]}"; do +#echo "pattern curr is '$i'" PIDS_SOUGHT+=($(cat $PID_DUMP \ | grep -i "$i" \ - | sed -n -e "$pid_finder_pattern")) + | grep -v "$excluder" \ + | awk -- "{ print \$${field_number}; }" )) done #echo ==== #echo pids sought list became: @@ -344,6 +383,11 @@ if [ -z "$skip_all" ]; then # special case for windows. ps | head -1 for curr in $p; do +#hmmm: currently not working right for windows cygwin. we're getting proper +# winpids out of the list now, but not able to use them in ps? +# should i be keeping the weirdo pid that we were getting in column 1 and +# use that, except when talking to taskkill? +# need further research. ps -W -p $curr | tail -n +2 done else @@ -390,12 +434,12 @@ if [ -z "$skip_all" ]; then DOSSYHOME="$(cygpath -am "$HOME")" fi - if [ ! -z "$SERIOUS_SLASH_TREATMENT" ]; then - # unless this flag is set, in which case we force dos slashes. - echo "$1" | sed -e "s?^$HOME?$DOSSYHOME?g" | sed -e 's/\\/\//g' | sed -e 's/\/cygdrive//' | sed -e 's/\/\([a-zA-Z]\)\/\(.*\)/\1:\/\2/' | sed -e 's/\//\\/g' - else +# if [ ! -z "$SERIOUS_SLASH_TREATMENT" ]; then +# # unless this flag is set, in which case we force dos slashes. +# echo "$1" | sed -e "s?^$HOME?$DOSSYHOME?g" | sed -e 's/\\/\//g' | sed -e 's/\/cygdrive//' | sed -e 's/\/\([a-zA-Z]\)\/\(.*\)/\1:\/\2/' | sed -e 's/\//\\/g' +# else echo "$1" | sed -e "s?^$HOME?$DOSSYHOME?g" | sed -e 's/\\/\//g' | sed -e 's/\/cygdrive//' | sed -e 's/\/\([a-zA-Z]\)\/\(.*\)/\1:\/\2/' - fi +# fi } # # switches from an X:/ form to a /cygdrive/X/path form. this is only useful @@ -409,8 +453,12 @@ if [ -z "$skip_all" ]; then # returns a successful value (0) if this system is debian or ubuntu. function debian_like() { # decide if we think this is debian or ubuntu or a variant. - DEBIAN_LIKE=$(if [ ! -z "$(grep -i debian /etc/issue)" \ - -o ! -z "$(grep -i ubuntu /etc/issue)" ]; then echo 1; else echo 0; fi) + DEBIAN_LIKE=$( \ + if [ \ + ! -z "$(grep -i debian /etc/issue)" -o \ + ! -z "$(grep -i ubuntu /etc/issue)" -o \ + ! -z "$(grep -i 'Pop._OS' /etc/issue)" \ + ]; then echo 1; else echo 0; fi) if [ $DEBIAN_LIKE -eq 1 ]; then # success; this is debianish. return 0 @@ -437,9 +485,11 @@ if [ -z "$skip_all" ]; then fi # launch sudo with just the variables we want to reach the other side. - # we take an extra step to null out the PATH, since MacOS seems to want - # to pass that even for a login shell (-i) somehow. - PATH= /usr/bin/sudo --preserve-env=SSH_AUTH_SOCK,IMPORTED_XAUTH "$@" + local varmods= + varmods+="OLD_HOME=$HOME " + if [ ! -z "$IMPORTED_XAUTH" ]; then varmods+="IMPORTED_XAUTH=$IMPORTED_XAUTH "; fi + if [ ! -z "$SSH_AUTH_SOCK" ]; then varmods+="SSH_AUTH_SOCK=$SSH_AUTH_SOCK "; fi + /usr/bin/sudo $varmods "$@" retval=$? # take the xauth info away again if it wasn't set already. @@ -479,9 +529,16 @@ if [ -z "$skip_all" ]; then bash $FEISTY_MEOW_SCRIPTS/core/reconfigure_feisty_meow.sh echo # force a full reload by turning off sentinel variables and methods. - unset -v CORE_VARIABLES_LOADED FEISTY_MEOW_LOADING_DOCK USER_CUSTOMIZATIONS_LOADED + unset -v CORE_VARIABLES_LOADED FEISTY_MEOW_LOADING_DOCK USER_CUSTOMIZATIONS_LOADED \ + BUILD_VARS_LOADED unalias CORE_ALIASES_LOADED &>/dev/null unset -f function_sentinel + + # reuse the original path if we can. + if [ ! -z "$FEISTY_MEOW_ORIGINAL_PATH" ]; then + export PATH="$FEISTY_MEOW_ORIGINAL_PATH" + fi + # reload feisty meow environment in current shell. log_feisty_meow_event "reloading the feisty meow scripts for $USER in current shell." source "$FEISTY_MEOW_SCRIPTS/core/launch_feisty_meow.sh" @@ -739,11 +796,11 @@ return 0 { count=$1; shift if [ -z "$count" ]; then - count=79 + count=$(($COLUMNS - 1)) fi echo local i - for ((i=0; i < $count - 1; i++)); do + for ((i=0; i < $count; i++)); do echo -n "=" done echo @@ -911,7 +968,10 @@ return 0 ############## # space 'em all: fixes naming for all of the files of the appropriate types - # in the directories specified. + # in the directories specified. we skip any file with a dot in front, to + # respect their hidden nature. currently the set of files we'll rename is + # very boutique; it's in this function, and just happens to be the types of + # files we work with a lot. function spacemall() { local -a dirs=("${@}") if [ ${#dirs[@]} -eq 0 ]; then @@ -919,9 +979,14 @@ return 0 fi local charnfile="$(mktemp $TMP/zz_charn.XXXXXX)" - find "${dirs[@]}" -follow -maxdepth 1 -mindepth 1 -type f | \ +#hmmm: any way to do the below more nicely or reusably? +#hmmm: yes! a variable with a list of files that are considered TEXT_FILE_EXTENSIONS or something like that. +#hmmm: yes continued! also a variable for BINARY_FILE_EXTENSIONS to avoid those, where we need to in other scripts. +#hmmm: wait, we actually have a mix here, since this is a renaming function and not a searching function; get it straight! +#hmmm: would the composition of those two types of extensions cover all the files i want to rename? they have to be "important". + find "${dirs[@]}" -follow -maxdepth 1 -mindepth 1 -type f -and -not -iname ".[a-zA-Z0-9]*" | \ grep -i \ -"doc\|docx\|eml\|html\|jpeg\|jpg\|m4a\|mov\|mp3\|ods\|odt\|pdf\|png\|ppt\|pptx\|txt\|vsd\|vsdx\|xls\|xlsx\|zip" | \ +"csv\|doc\|docx\|eml\|html\|ics\|jpeg\|jpg\|m4a\|mov\|mp3\|odp\|ods\|odt\|pdf\|png\|ppt\|pptx\|rtf\|txt\|vsd\|vsdx\|wav\|webp\|xls\|xlsx\|xml\|zip" | \ sed -e 's/^/"/' | sed -e 's/$/"/' | \ xargs bash "$FEISTY_MEOW_SCRIPTS/files/spacem.sh" # drop the temp file now that we're done. @@ -930,7 +995,21 @@ return 0 ############## - # site avenger aliases + # tty relevant functions... + + # keep_awake: sends a message to the screen from the background. + function keep_awake() + { + # just starts the keep_awake process in the background. + bash $FEISTY_MEOW_SCRIPTS/tty/keep_awake_process.sh & + # this should leave the job running as %1 or a higher number if there + # are pre-existing background jobs. + } + + ############## + + # site avenger functions... + function switchto() { THISDIR="$FEISTY_MEOW_SCRIPTS/site_avenger"