3 # This defines some general, useful functions.
5 #hmmm: starting to get a bit beefy in here. perhaps there is a good way to refactor the functions into more specific folders, if they aren't really totally general purpose?
9 # test whether we've been here before or not.
11 type function_sentinel &>/dev/null
13 # there was no error, so we can skip the inits.
14 if [ ! -z "$DEBUG_FEISTY_MEOW" ]; then
15 echo "skipping function definitions, because already defined."
22 if [ -z "$skip_all" ]; then
24 if [ ! -z "$DEBUG_FEISTY_MEOW" ]; then
25 echo "feisty meow function definitions beginning now..."
28 # a handy little method that can be used for date strings. it was getting
29 # really tiresome how many different ways the script did the date formatting.
30 function date_stringer() {
32 if [ -z "$sep" ]; then sep='_'; fi
33 date +"%Y$sep%m$sep%d$sep%H%M$sep%S" | tr -d '/\n/'
36 # makes a directory of the name specified and then tries to change the
37 # current directory to that directory.
39 if [ ! -d "$1" ]; then mkdir -p "$1"; fi
44 [[ "$(declare -p $1)" =~ "declare -a" ]]
54 # displays the value of a variable in bash friendly format.
59 local varname="$1"; shift
60 if [ -z "$varname" ]; then
64 if is_alias "$varname"; then
65 #echo found $varname is alias
66 local tmpfile="$(mktemp $TMP/aliasout.XXXXXX)"
67 alias $varname | sed -e 's/.*=//' >$tmpfile
68 echo "alias $varname=$(cat $tmpfile)"
70 elif [ -z "${!varname}" ]; then
71 echo "$varname undefined"
73 if is_array "$varname"; then
74 #echo found $varname is array var
76 eval temparray="(\${$varname[@]})"
77 echo "$varname=(${temparray[@]})"
78 #hmmm: would be nice to print above with elements enclosed in quotes, so that we can properly
79 # see ones that have spaces in them.
81 #echo found $varname is simple
82 echo "$varname=${!varname}"
91 # when passed a list of things, this will return the unique items from that list as an echo.
94 # do the uniquification: split the space separated items into separate lines, then
95 # sort the list, then run the uniq tool on the list. results will be packed back onto
96 # one line when invoked like: local fredlist="$(uniquify a b c e d a e f a e d b)"
97 echo $* | tr ' ' '\n' | sort | uniq
100 # sets the variable in parameter 1 to the value in parameter 2, but only if
101 # that variable was undefined.
102 function set_var_if_undefined()
104 local var_name="$1"; shift
105 local var_value="$1"; shift
106 if [ -z "${!var_name}" ]; then
107 eval export $var_name="$var_value"
113 function success_sound()
115 if [ ! -z "$CLAM_FINISH_SOUND" ]; then
116 bash $FEISTY_MEOW_SCRIPTS/multimedia/sound_play.sh "$CLAM_FINISH_SOUND"
120 function error_sound()
122 if [ ! -z "$CLAM_ERROR_SOUND" ]; then
123 bash $FEISTY_MEOW_SCRIPTS/multimedia/sound_play.sh "$CLAM_ERROR_SOUND"
129 # echoes the maximum number of columns that the terminal supports. usually
130 # anything you print to the terminal with length less than (but not equal to)
131 # maxcols will never wrap.
132 function get_maxcols()
134 # calculate the number of columsn in the terminal.
135 local cols=$(stty size | awk '{print $2}')
141 # checks the result of the last command that was run, and if that failed,
142 # then this complains and exits from bash. the function parameters are
143 # used as the message to print as a complaint.
144 function test_or_die()
146 if [ $? -ne 0 ]; then
147 echo -e "\n\naction failed: $*\n\nExiting script..."
153 # like test_or_die, but will keep going after complaining.
154 function test_or_continue()
156 if [ $? -ne 0 ]; then
157 echo -e "\n\nerror occurred: $*\n\nContinuing script..."
164 # wraps secure shell with some parameters we like, most importantly to enable X forwarding.
169 # we remember the old terminal title, then force the TERM variable to a more generic
170 # version for the other side (just 'linux'); we don't want the remote side still
171 # thinking it's running xterm.
173 /usr/bin/ssh -X -C "${args[@]}"
174 restore_terminal_title
179 # locates a process given a search pattern to match in the process list.
180 # supports a single command line flag style parameter of "-u USERNAME";
181 # if the -u flag is found, a username is expected afterwards, and only the
182 # processes of that user are considered.
184 local -a patterns=("${@}")
186 #echo patterns list is: "${patterns[@]}"
190 if [ "${patterns[0]}" == "-u" ]; then
191 user_flag="-u ${patterns[1]}"
192 #echo "found a -u parm and user=${patterns[1]}"
193 # void the two elements with that user flag so we don't use them as patterns.
194 unset patterns[0] patterns[1]=
200 local PID_DUMP="$(mktemp "$TMP/zz_pidlist.XXXXXX")"
203 if [ "$OS" == "Windows_NT" ]; then
204 # gets cygwin's (god awful) ps to show windoze processes also.
205 local EXTRA_DOZER_FLAGS="-W"
206 # pattern to use for peeling off the process numbers.
207 local pid_finder_pattern='s/ *\([0-9][0-9]*\) *.*$/\1/p'
210 # flags which clean up the process listing output on unixes.
211 # apparently cygwin doesn't count as a type of unix, because their
212 # crummy specialized ps command doesn't support normal ps flags.
213 local EXTRA_UNIX_FLAGS="-o pid,args"
214 # pattern to use for peeling off the process numbers.
215 local pid_finder_pattern='s/^[[:space:]]*\([0-9][0-9]*\).*$/\1/p'
218 /bin/ps $EXTRA_DOZER_FLAGS $EXTRA_UNIX_FLAGS $user_flag | tail -n +2 >$PID_DUMP
220 #echo got all this stuff in the pid dump file:
224 # search for the pattern the user wants to find, and just pluck the process
225 # ids out of the results.
227 for i in "${patterns[@]}"; do
228 PIDS_SOUGHT+=($(cat $PID_DUMP \
230 | sed -n -e "$pid_finder_pattern"))
233 #echo pids sought list became:
234 #echo "${PIDS_SOUGHT[@]}"
237 if [ ${#PIDS_SOUGHT[*]} -ne 0 ]; then
238 local PIDS_SOUGHT2=$(printf -- '%s\n' ${PIDS_SOUGHT[@]} | sort | uniq)
240 PIDS_SOUGHT=${PIDS_SOUGHT2[*]}
241 echo ${PIDS_SOUGHT[*]}
246 # finds all processes matching the pattern specified and shows their full
247 # process listing (whereas psfind just lists process ids).
250 echo "psa finds processes by pattern, but there was no pattern on the command line."
253 local -a patterns=("${@}")
254 p=$(psfind "${patterns[@]}")
260 if [ "${patterns[0]}" == "-u" ]; then
261 # void the two elements with that user flag so we don't use them as patterns.
262 unset patterns[0] patterns[1]=
266 echo "Processes matching ${patterns[@]}..."
268 if [ -n "$IS_DARWIN" ]; then
271 # only print the header the first time.
272 if [ -z "$fuzil_sentinel" ]; then
275 ps $i -w -u | sed -e '1d'
280 # cases besides mac os x's darwin.
281 if [ "$OS" == "Windows_NT" ]; then
282 # special case for windows.
285 ps -W -p $curr | tail -n +2
288 # normal OSes can handle a nice simple query.
296 #hmmm: holy crowbars, this is an old one. do we ever still have any need of it?
297 # an unfortunately similarly named function to the above 'ps' as in process
298 # methods, but this 'ps' stands for postscript. this takes a postscript file
299 # and converts it into pcl3 printer language and then ships it to the printer.
300 # this mostly makes sense for an environment where one's default printer is
301 # pcl. if the input postscript causes ghostscript to bomb out, there has been
302 # some good success running ps2ps on the input file and using the cleaned
303 # postscript file for printing.
304 function ps2pcl2lpr() {
306 gs -sDEVICE=pcl3 -sOutputFile=- -sPAPERSIZE=letter "$i" | lpr -l
310 # restarts the sound driver.
311 function fix_sound_driver() {
313 # sudo service alsasound restart
315 sudo service pulseaudio restart
322 #hmmm: ugly absolute path here.
324 restore_terminal_title
327 # switches from a /X/path form to an X:/ form. this also processes cygwin paths.
328 function unix_to_dos_path() {
329 # we usually remove dos slashes in favor of forward slashes.
331 if [[ ! "$OS" =~ ^[Ww][iI][nN] ]]; then
332 # fake this value for non-windows (non-cygwin) platforms.
335 # for cygwin, we must replace the /home/X path with an absolute one, since cygwin
336 # insists on the /home form instead of /c/cygwin/home being possible. this is
337 # super frustrating and nightmarish.
338 DOSSYHOME="$(cygpath -am "$HOME")"
341 if [ ! -z "$SERIOUS_SLASH_TREATMENT" ]; then
342 # unless this flag is set, in which case we force dos slashes.
343 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'
345 echo "$1" | sed -e "s?^$HOME?$DOSSYHOME?g" | sed -e 's/\\/\//g' | sed -e 's/\/cygdrive//' | sed -e 's/\/\([a-zA-Z]\)\/\(.*\)/\1:\/\2/'
349 # switches from an X:/ form to a /cygdrive/X/path form. this is only useful
350 # for the cygwin environment currently.
351 function dos_to_unix_path() {
352 # we always remove dos slashes in favor of forward slashes.
353 #old: echo "$1" | sed -e 's/\\/\//g' | sed -e 's/\([a-zA-Z]\):\/\(.*\)/\/\1\/\2/'
354 echo "$1" | sed -e 's/\\/\//g' | sed -e 's/\([a-zA-Z]\):\/\(.*\)/\/cygdrive\/\1\/\2/'
357 # returns a successful value (0) if this system is debian or ubuntu.
358 function debian_like() {
359 # decide if we think this is debian or ubuntu or a variant.
360 DEBIAN_LIKE=$(if [ ! -z "$(grep -i debian /etc/issue)" \
361 -o ! -z "$(grep -i ubuntu /etc/issue)" ]; then echo 1; else echo 0; fi)
362 if [ $DEBIAN_LIKE -eq 1 ]; then
363 # success; this is debianish.
366 # this seems like some other OS.
371 # su function: makes su perform a login.
372 # for some OSes, this transfers the X authority information to the new login.
375 # debian currently requires the full version which imports X authority
376 # information for su.
378 # get the x authority info for our current user.
379 source "$FEISTY_MEOW_SCRIPTS/security/get_x_auth.sh"
381 if [ -z "$X_auth_info" ]; then
382 # if there's no authentication info to pass along, we just do a normal su.
385 # under X, we update the new login's authority info with the previous
387 (unset XAUTHORITY; /bin/su -l $* -c "$X_auth_info ; export DISPLAY=$DISPLAY ; bash")
390 # non-debian supposedly doesn't need the extra overhead any more.
391 # or at least suse doesn't, which is the other one we've tested on.
396 # sudo function wraps the normal sudo by ensuring we replace the terminal
397 # label if they're doing an su with the sudo.
402 restore_terminal_title
403 # if [ "$first_command" == "su" ]; then
404 # # yep, they were doing an su, but they're back now.
405 # label_terminal_with_info
410 # trashes the .#blah files that cvs and subversion leave behind when finding conflicts.
411 # this kind of assumes you've already checked them for any salient facts.
412 function clean_cvs_junk() {
414 find $i -follow -type f -iname ".#*" -exec perl $FEISTY_MEOW_SCRIPTS/files/safedel.pl {} ";"
418 # overlay for nechung binary so that we can complain less grossly about it when it's missing.
420 local wheres_nechung=$(which nechung 2>/dev/null)
421 if [ -z "$wheres_nechung" ]; then
422 echo "The nechung oracle program cannot be found. You may want to consider"
423 echo "rebuilding the feisty meow applications with this command:"
424 echo "bash $FEISTY_MEOW_SCRIPTS/generator/produce_feisty_meow.sh"
431 # recreates all the generated files that the feisty meow scripts use.
432 function regenerate() {
433 # do the bootstrapping process again.
435 echo "regenerating feisty meow script environment."
436 bash $FEISTY_MEOW_SCRIPTS/core/reconfigure_feisty_meow.sh
438 # force a full reload by turning off sentinel variables and methods.
439 unset -v CORE_VARIABLES_LOADED FEISTY_MEOW_LOADING_DOCK USER_CUSTOMIZATIONS_LOADED
440 unalias CORE_ALIASES_LOADED &>/dev/null
441 unset -f function_sentinel
442 # reload feisty meow environment in current shell.
443 source "$FEISTY_MEOW_SCRIPTS/core/launch_feisty_meow.sh"
444 # run nechung oracle to give user a new fortune.
446 restore_terminal_title
449 # copies a set of custom scripts into the proper location for feisty meow
450 # to merge their functions and aliases with the standard set.
451 function recustomize()
453 local custom_user="$1"; shift
454 if [ -z "$custom_user" ]; then
455 # use our default example user if there was no name provided.
461 if [ ! -d "$FEISTY_MEOW_SCRIPTS/customize/$custom_user" ]; then
462 echo "The customization folder provided for $custom_user should be:"
463 echo " '$FEISTY_MEOW_SCRIPTS/customize/$custom_user'"
464 echo "but that folder does not exist. Skipping customization."
467 regenerate >/dev/null
468 pushd "$FEISTY_MEOW_LOADING_DOCK/custom" &>/dev/null
469 incongruous_files="$(bash "$FEISTY_MEOW_SCRIPTS/files/list_non_dupes.sh" "$FEISTY_MEOW_SCRIPTS/customize/$custom_user" "$FEISTY_MEOW_LOADING_DOCK/custom")"
471 local fail_message="\nare the perl dependencies installed? if you're on ubuntu or debian, try this:\n
472 $(grep "apt.*perl" $FEISTY_MEOW_APEX/readme.txt)\n"
474 #echo "the incongruous files list is: $incongruous_files"
475 # disallow a single character result, since we get "*" as result when nothing exists yet.
476 if [ ${#incongruous_files} -ge 2 ]; then
477 echo "cleaning unknown older overrides..."
478 perl "$FEISTY_MEOW_SCRIPTS/files/safedel.pl" $incongruous_files
479 test_or_continue "running safedel. $fail_message"
483 echo "copying custom overrides for $custom_user"
484 mkdir -p "$FEISTY_MEOW_LOADING_DOCK/custom" 2>/dev/null
485 perl "$FEISTY_MEOW_SCRIPTS/text/cpdiff.pl" "$FEISTY_MEOW_SCRIPTS/customize/$custom_user" "$FEISTY_MEOW_LOADING_DOCK/custom"
486 test_or_continue "running cpdiff. $fail_message"
488 if [ -d "$FEISTY_MEOW_SCRIPTS/customize/$custom_user/scripts" ]; then
489 echo "copying custom scripts for $custom_user"
490 netcp "$FEISTY_MEOW_SCRIPTS/customize/$custom_user/scripts" "$FEISTY_MEOW_LOADING_DOCK/custom/" &>/dev/null
491 #hmmm: could save output to show if an error occurs.
496 restore_terminal_title
499 # generates a random password where the first parameter is the number of characters
500 # in the password (default 20) and the second parameter specifies whether to use
501 # special characters (1) or not (0).
502 # found function at http://legroom.net/2010/05/06/bash-random-password-generator
503 function random_password()
505 [ "$2" == "0" ] && CHAR="[:alnum:]" || CHAR="[:graph:]"
506 cat /dev/urandom | tr -cd "$CHAR" | head -c ${1:-32}
510 # a wrapper for the which command that finds items on the path. some OSes
511 # do not provide which, so we want to not be spewing errors when that
516 which which &>/dev/null
517 if [ $? -ne 0 ]; then
518 # there is no which command here. we produce nothing due to this.
521 echo $(which $to_find)
524 #hmmm: improve this by not adding the link
525 # if already there, or if the drive is not valid.
526 function add_cygwin_drive_mounts() {
527 for i in c d e f g h q z ; do
528 ln -s /cygdrive/$i $i
532 ############################
534 # takes a file to modify, and then it will replace any occurrences of the
535 # pattern provided as the second parameter with the text in the third
537 function replace_pattern_in_file()
539 local file="$1"; shift
540 local pattern="$1"; shift
541 local replacement="$1"; shift
542 if [ -z "$file" -o -z "$pattern" -o -z "$replacement" ]; then
543 echo "replace_pattern_in_file: needs a filename, a pattern to replace, and the"
544 echo "text to replace that pattern with."
547 sed -i -e "s%$pattern%$replacement%g" "$file"
550 # similar to replace_pattern_in_file, but also will add the new value
551 # when the old one did not already exist in the file.
552 function replace_if_exists_or_add()
554 local file="$1"; shift
555 local phrase="$1"; shift
556 local replacement="$1"; shift
557 if [ -z "$file" -o ! -f "$file" -o -z "$phrase" -o -z "$replacement" ]; then
558 echo "replace_if_exists_or_add: needs a filename, a phrase to replace, and the"
559 echo "text to replace that phrase with."
562 grep "$phrase" "$file" >/dev/null
563 # replace if the phrase is there, otherwise add it.
564 if [ $? -eq 0 ]; then
565 replace_pattern_in_file "$file" "$phrase" "$replacement"
567 # this had better be the complete line.
568 echo "$replacement" >>"$file"
572 ############################
574 # finds a variable (first parameter) in a particular property file
575 # (second parameter). the expected format for the file is:
577 function seek_variable()
579 local find_var="$1"; shift
580 local file="$1"; shift
581 if [ -z "$find_var" -o -z "$file" -o ! -f "$file" ]; then
582 echo -e "seek_variable: needs two parameters, firstly a variable name, and\nsecondly a file where the variable's value will be sought." 1>&2
587 if [ ${#line} -eq 0 ]; then continue; fi
588 # split the line into the variable name and value.
589 IFS='=' read -a assignment <<< "$line"
590 local var="${assignment[0]}"
591 local value="${assignment[1]}"
592 if [ "${value:0:1}" == '"' ]; then
593 # assume the entry was in quotes and remove them.
594 value="${value:1:$((${#value} - 2))}"
596 if [ "$find_var" == "$var" ]; then
602 # finds a variable (first parameter) in a particular XML format file
603 # (second parameter). the expected format for the file is:
604 # ... name="varX" value="valueX" ...
605 function seek_variable_in_xml()
607 local find_var="$1"; shift
608 local file="$1"; shift
609 if [ -z "$find_var" -o -z "$file" -o ! -f "$file" ]; then
610 echo "seek_variable_in_xml: needs two parameters, firstly a variable name, and"
611 echo "secondly an XML file where the variable's value will be sought."
616 if [ ${#line} -eq 0 ]; then continue; fi
617 # process the line to make it more conventional looking.
618 line="$(echo "$line" | sed -e 's/.*name="\([^"]*\)" value="\([^"]*\)"/\1=\2/')"
619 # split the line into the variable name and value.
620 IFS='=' read -a assignment <<< "$line"
621 local var="${assignment[0]}"
622 local value="${assignment[1]}"
623 if [ "${value:0:1}" == '"' ]; then
624 # assume the entry was in quotes and remove them.
625 value="${value:1:$((${#value} - 2))}"
627 if [ "$find_var" == "$var" ]; then
633 ############################
635 # goes to a particular directory passed as parameter 1, and then removes all
636 # the parameters after that from that directory.
637 function push_whack_pop()
639 local dir="$1"; shift
640 pushd "$dir" &>/dev/null
641 if [ $? -ne 0 ]; then echo failed to enter dir--quitting.; fi
642 rm -rf $* &>/dev/null
643 if [ $? -ne 0 ]; then echo received a failure code when removing.; fi
649 while [ $# -gt 0 ]; do
651 if [ ! -f "$arg" -a ! -d "$arg" ]; then
652 echo "failure to find a file or directory named '$arg'."
656 # first we will capture the output of the character replacement operation for reporting.
657 # this is done first since some filenames can't be properly renamed in perl (e.g. if they
658 # have pipe characters apparently).
659 intermediate_name="$(bash "$FEISTY_MEOW_SCRIPTS/files/replace_spaces_with_underscores.sh" "$arg")"
660 local saw_intermediate_result=0
661 if [ -z "$intermediate_name" ]; then
662 # make sure we report something, if there are no further name changes.
663 intermediate_name="'$arg'"
665 # now zap the first part of the name off (since original name isn't needed).
666 intermediate_name="$(echo $intermediate_name | sed -e 's/.*=> //')"
667 saw_intermediate_result=1
670 # first we rename the file to be lower case.
671 actual_file="$(echo $intermediate_name | sed -e "s/'\([^']*\)'/\1/")"
672 final_name="$(perl $FEISTY_MEOW_SCRIPTS/files/renlower.pl "$actual_file")"
673 local saw_final_result=0
674 if [ -z "$final_name" ]; then
675 final_name="$intermediate_name"
677 final_name="$(echo $final_name | sed -e 's/.*=> //')"
680 #echo intermed=$saw_intermediate_result
681 #echo final=$saw_final_result
683 if [[ $saw_intermediate_result != 0 || $saw_final_result != 0 ]]; then
684 # printout the combined operation results.
685 echo "'$arg' => $final_name"
692 # new breed of definer functions goes here. still in progress.
694 # defines an alias and remembers that this is a new or modified definition.
695 # if the feisty meow codebase is unloaded, then so are all the aliases that
697 function define_yeti_alias()
699 # if alias exists already, save old value for restore,
700 # otherwise save null value for restore,
701 # have to handle unaliasing if there was no prior value of one
703 # add alias name to a list of feisty defined aliases.
705 #hmmm: first implem, just do the alias and get that working...
714 #hmmm: this points to an extended functions file being needed; not all of these are core.
716 # displays documentation in "md" formatted files.
719 local file="$1"; shift
720 pandoc "$file" | lynx -stdin
725 # just shows a separator line for an 80 column console, or uses the first
726 # parameter as the number of columns to expect.
730 if [ -z "$count" ]; then
735 for ((i=0; i < $count - 1; i++)); do
741 # alias for separator.
749 # count the number of sub-directories in a directory and echo the result.
750 function count_directories()
752 local appsdir="$1"; shift
753 numdirs="$(find "$appsdir" -mindepth 1 -maxdepth 1 -type d | wc -l)"
757 # takes a string and capitalizes just the first character. any capital letters in the remainder of
758 # the string are made lower case. the processed string is returned by an echo.
759 function capitalize_first_char()
761 local to_dromedary="$1"; shift
762 to_dromedary="$(tr '[:lower:]' '[:upper:]' <<< ${to_dromedary:0:1})$(tr '[:upper:]' '[:lower:]' <<< ${to_dromedary:1})"
766 # given a source path and a target path, this will make a symbolic link from
767 # the source to the destination, but only if the source actually exists.
768 function make_safe_link()
770 local src="$1"; shift
771 local target="$1"; shift
773 if [ -d "$src" ]; then
774 ln -s "$src" "$target"
775 test_or_die "Creating symlink from '$src' to '$target'"
777 echo "Created symlink from '$src' to '$target'."
780 # pretty prints the json files provided as parameters.
781 function clean_json()
783 if [ -z "$*" ]; then return; fi
786 local file="$1"; shift
787 if [ -z "$file" ]; then break; fi
788 if [ ! -f "$file" ]; then "echo File '$file' does not exist."; continue; fi
789 temp_out="$TMP/$file.view"
790 cat "$file" | python -m json.tool > "$temp_out"
791 show_list+=($temp_out)
792 test_or_continue "pretty printing '$file'"
794 filedump "${show_list[@]}"
800 # only print our special headers or text fields.
804 grep -i "\"text\":\|^=.*" |
805 sed -e "s/\\\\r/$CR/g" -e "s/\\\\n/\\$LF/g"
810 # echoes the machine's hostname. can be used like so:
811 # local my_host=$(get_hostname)
812 function get_hostname()
814 # there used to be more variation in how to do this, but adopting mingw
815 # and cygwin tools really helped out.
816 local this_host=unknown
817 if [ "$OS" == "Windows_NT" ]; then
818 this_host=$(hostname)
819 elif [ ! -z "$(echo $MACHTYPE | grep apple)" ]; then
820 this_host=$(hostname)
821 elif [ ! -z "$(echo $MACHTYPE | grep suse)" ]; then
822 this_host=$(hostname --long)
823 elif [ -x "$(which hostname 2>/dev/null)" ]; then
824 this_host=$(hostname)
829 # makes sure that the provided "folder" is a directory and is writable.
830 function test_writeable()
832 local folder="$1"; shift
833 if [ ! -d "$folder" -o ! -w "$folder" ]; then return 1; fi
839 # NOTE: no more function definitions are allowed after this point.
841 function function_sentinel()
846 if [ ! -z "$DEBUG_FEISTY_MEOW" ]; then echo "feisty meow function definitions done."; fi
850 # test code for set_var_if_undefined.
852 if [ $run_test != 0 ]; then
853 echo running tests on set_var_if_undefined.
855 set_var_if_undefined flagrant forknordle
856 test_or_die "testing if defined variable would be whacked"
857 if [ $flagrant != petunia ]; then
858 echo set_var_if_undefined failed to leave the test variable alone
861 unset bobblehead_stomper
862 set_var_if_undefined bobblehead_stomper endurance
863 if [ $bobblehead_stomper != endurance ]; then
864 echo set_var_if_undefined failed to set a variable that was not defined yet