+ }
+
+ # an unfortunately similarly named function to the above 'ps' as in process
+ # methods, but this 'ps' stands for postscript. this takes a postscript file
+ # and converts it into pcl3 printer language and then ships it to the printer.
+ # this mostly makes sense for an environment where one's default printer is
+ # pcl. if the input postscript causes ghostscript to bomb out, there has been
+ # some good success running ps2ps on the input file and using the cleaned
+ # postscript file for printing.
+ function ps2pcl2lpr() {
+ for $i in $*; do
+ gs -sDEVICE=pcl3 -sOutputFile=- -sPAPERSIZE=letter "$i" | lpr -l
+ done
+ }
+
+ function fix_alsa() {
+ sudo /etc/init.d/alsasound restart
+ }
+
+ # switches from a /X/path form to an X:/ form. this also processes cygwin paths.
+ function unix_to_dos_path() {
+ # we usually remove dos slashes in favor of forward slashes.
+ local DOSSYHOME
+ if [[ ! "$OS" =~ ^[Ww][iI][nN] ]]; then
+ # fake this value for non-windows (non-cygwin) platforms.
+ DOSSYHOME="$HOME"
+ else
+ # for cygwin, we must replace the /home/X path with an absolute one, since cygwin
+ # insists on the /home form instead of /c/cygwin/home being possible. this is
+ # super frustrating and nightmarish.
+ 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
+ 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
+ }
+
+ # switches from an X:/ form to a /cygdrive/X/path form. this is only useful
+ # for the cygwin environment currently.
+ function dos_to_unix_path() {
+ # we always remove dos slashes in favor of forward slashes.
+#old: echo "$1" | sed -e 's/\\/\//g' | sed -e 's/\([a-zA-Z]\):\/\(.*\)/\/\1\/\2/'
+ echo "$1" | sed -e 's/\\/\//g' | sed -e 's/\([a-zA-Z]\):\/\(.*\)/\/cygdrive\/\1\/\2/'
+ }
+
+ # 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)
+ if [ $DEBIAN_LIKE -eq 1 ]; then
+ # success; this is debianish.
+ return 0
+ else
+ # this seems like some other OS.
+ return 1
+ fi
+ }
+
+ # su function: makes su perform a login.
+ # for some OSes, this transfers the X authority information to the new login.
+ function su() {
+ if debian_like; then
+ # debian currently requires the full version which imports X authority
+ # information for su.
+
+ # get the x authority info for our current user.
+ source $FEISTY_MEOW_SCRIPTS/x_win/get_x_auth.sh
+
+ if [ -z "$X_auth_info" ]; then
+ # if there's no authentication info to pass along, we just do a normal su.
+ /bin/su -l $*
+ else
+ # under X, we update the new login's authority info with the previous
+ # user's info.
+ (unset XAUTHORITY; /bin/su -l $* -c "$X_auth_info ; export DISPLAY=$DISPLAY ; bash")
+ fi
+ else
+ # non-debian supposedly doesn't need the extra overhead any more.
+ # or at least suse doesn't, which is the other one we've tested on.
+ /bin/su -l $*
+ fi
+
+ # relabel the console after returning.
+ bash $FEISTY_MEOW_SCRIPTS/tty/label_terminal_with_infos.sh
+ }
+
+ # sudo function wraps the normal sudo by ensuring we replace the terminal
+ # label if they're doing an su with the sudo.
+ function sudo() {
+ local first_command="$1"
+ /usr/bin/sudo "$@"
+ if [ "$first_command" == "su" ]; then
+ # yep, they were doing an su, but they're back now.
+ bash $FEISTY_MEOW_SCRIPTS/tty/label_terminal_with_infos.sh
+ fi
+ }
+
+ # trashes the .#blah files that cvs and svn leave behind when finding conflicts.
+ # this kind of assumes you've already checked them for any salient facts.
+ function clean_cvs_junk() {
+ for i in $*; do
+ find $i -follow -type f -iname ".#*" -exec perl $FEISTY_MEOW_SCRIPTS/files/safedel.pl {} ";"
+ done
+ }
+
+ # overlay for nechung binary so that we can complain less grossly about it when it's missing.
+ function nechung() {
+ local wheres_nechung=$(which nechung 2>/dev/null)
+ if [ -z "$wheres_nechung" ]; then
+ echo "The nechung oracle program cannot be found. You may want to consider"
+ echo "rebuilding the feisty meow applications with this command:"
+ echo "bash $FEISTY_MEOW_SCRIPTS/generator/produce_feisty_meow.sh"
+ else
+ $wheres_nechung
+ fi
+ }
+
+ # recreates all the generated files that the feisty meow scripts use.
+ function regenerate() {
+ # do the bootstrapping process again.
+ echo "regenerating feisty meow script environment."
+ bash $FEISTY_MEOW_SCRIPTS/core/reconfigure_feisty_meow.sh
+ echo
+ # force a full reload by turning off sentinel variable and alias.
+ # the nethack one is used by fred's customizations.
+ # interesting note perhaps: found that the NETHACKOPTIONS variable was
+ # not being unset correctly when preceded by an alias. split them up
+ # like they are now due to that bug.
+ unset -v CORE_ALIASES_LOADED FEISTY_MEOW_LOADING_DOCK NECHUNG NETHACKOPTIONS
+ unset -f function_sentinel
+ # reload feisty meow environment in current shell.
+ source $FEISTY_MEOW_SCRIPTS/core/launch_feisty_meow.sh
+ # run nechung oracle to give user a new fortune.
+ nechung
+ }
+
+ # copies a set of custom scripts into the proper location for feisty meow
+ # to merge their functions and aliases with the standard set.
+ function recustomize()
+ {
+ user="$1"; shift
+ if [ -z "$user" ]; then
+ # use our default example user if there was no name provided.
+ user=fred
+ fi
+ if [ ! -d "$FEISTY_MEOW_APEX/customizing/$user" ]; then
+ echo "The customization folder provided for $user should be:"
+ echo " '$FEISTY_MEOW_APEX/customizing/$user'"
+ echo "but that folder does not exist. Skipping customization."
+ return 1
+ fi
+ regenerate >/dev/null
+ pushd "$FEISTY_MEOW_LOADING_DOCK/custom" &>/dev/null
+ incongruous_files="$(bash "$FEISTY_MEOW_SCRIPTS/files/list_non_dupes.sh" "$FEISTY_MEOW_APEX/customizing/$user" "$FEISTY_MEOW_LOADING_DOCK/custom")"
+
+ #echo "the incongruous files list is: $incongruous_files"
+ # disallow a single character result, since we get "*" as result when nothing exists yet.
+ if [ ${#incongruous_files} -ge 2 ]; then
+ echo "cleaning unknown older overrides..."
+ perl "$FEISTY_MEOW_SCRIPTS/files/safedel.pl" $incongruous_files
+ echo
+ fi
+ popd &>/dev/null
+ echo "copying custom overrides for $user"
+ mkdir -p "$FEISTY_MEOW_LOADING_DOCK/custom" 2>/dev/null
+ perl "$FEISTY_MEOW_SCRIPTS/text/cpdiff.pl" "$FEISTY_MEOW_APEX/customizing/$user" "$FEISTY_MEOW_LOADING_DOCK/custom"
+ if [ -d "$FEISTY_MEOW_APEX/customizing/$user/scripts" ]; then
+ echo "copying custom scripts for $user"
+ \cp -R "$FEISTY_MEOW_APEX/customizing/$user/scripts" "$FEISTY_MEOW_LOADING_DOCK/custom/"
+ fi
+ echo
+ regenerate
+ }
+
+ # generates a random password where the first parameter is the number of characters
+ # in the password (default 20) and the second parameter specifies whether to use
+ # special characters (1) or not (0).
+ # found function at http://legroom.net/2010/05/06/bash-random-password-generator
+ function random_password()
+ {
+ [ "$2" == "0" ] && CHAR="[:alnum:]" || CHAR="[:graph:]"
+ cat /dev/urandom | tr -cd "$CHAR" | head -c ${1:-32}
+ echo
+ }
+
+ # 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
+ which which &>/dev/null
+ if [ $? -ne 0 ]; then
+ # there is no which command here. we produce nothing due to this.
+ echo
+ fi
+ echo $(which $to_find)
+ }
+
+#hmmm: improve this by not adding the link
+# if already there, or if the drive is not valid.
+ function add_cygwin_drive_mounts() {
+ for i in c d e f g h q z ; do
+ ln -s /cygdrive/$i $i
+ done
+ }
+
+ # takes a file to modify, and then it will replace any occurrences of the
+ # pattern provided as the second parameter with the text in the third
+ # parameter.
+ function replace_pattern_in_file()
+ {
+ local file="$1"; shift
+ local pattern="$1"; shift
+ local replacement="$1"; shift
+ if [ -z "$file" -o -z "$pattern" -o -z "$replacement" ]; then
+ echo "replace_pattern_in_file: needs a filename, a pattern to replace, and the"
+ echo "text to replace that pattern with."
+ return 1
+ fi
+ sed -i -e "s%$pattern%$replacement%g" "$file"
+ }
+
+ # goes to a particular directory passed as parameter 1, and then removes all
+ # the parameters after that from that directory.
+ function push_whack_pop()
+ {
+ local dir="$1"; shift
+ pushd "$dir" &>/dev/null
+ rm -rf $* &>/dev/null
+ popd &>/dev/null
+ }
+
+ function spacem()
+ {
+ while [ $# -gt 0 ]; do
+ arg="$1"; shift
+ if [ ! -f "$arg" -a ! -d "$arg" ]; then
+ echo "failure to find a file or directory named '$arg'."
+ continue
+ fi
+
+ # first we will capture the output of the character replacement operation for reporting.
+ # this is done first since some filenames can't be properly renamed in perl (e.g. if they
+ # have pipe characters apparently).
+ intermediate_name="$(bash "$FEISTY_MEOW_SCRIPTS/files/replace_spaces_with_underscores.sh" "$arg")"
+ local saw_intermediate_result=0
+ if [ -z "$intermediate_name" ]; then
+ # make sure we report something, if there are no further name changes.
+ intermediate_name="'$arg'"
+ else
+ # now zap the first part of the name off (since original name isn't needed).
+ intermediate_name="$(echo $intermediate_name | sed -e 's/.*=> //')"
+ saw_intermediate_result=1
+ fi
+
+ # first we rename the file to be lower case.
+ actual_file="$(echo $intermediate_name | sed -e "s/'\([^']*\)'/\1/")"
+ final_name="$(perl $FEISTY_MEOW_SCRIPTS/files/renlower.pl "$actual_file")"
+ local saw_final_result=0
+ if [ -z "$final_name" ]; then
+ final_name="$intermediate_name"
+ else
+ final_name="$(echo $final_name | sed -e 's/.*=> //')"
+ saw_final_result=1
+ fi
+#echo intermed=$saw_intermediate_result
+#echo final=$saw_final_result
+
+ if [[ $saw_intermediate_result != 0 || $saw_final_result != 0 ]]; then
+ # printout the combined operation results.
+ echo "'$arg' => $final_name"
+ fi
+ done
+ }
+
+ ##############
+
+# new breed of definer functions goes here. still in progress.
+
+ # defines an alias and remembers that this is a new or modified definition.
+ # if the feisty meow codebase is unloaded, then so are all the aliases that
+ # were defined.
+ function define_yeti_alias()
+ {
+# if alias exists already, save old value for restore,
+# otherwise save null value for restore,
+# have to handle unaliasing if there was no prior value of one
+# we newly defined.
+# add alias name to a list of feisty defined aliases.
+
+#hmmm: first implem, just do the alias and get that working...
+alias "${@}"
+
+
+return 0
+ }
+
+ # defines a variable within the feisty meow environment and remembers that
+ # this is a new or modified definition. if the feisty meow codebase is
+ # unloaded, then so are all the variables that were defined.
+ # this function always exports the variables it defines.
+# function define_yeti_variable()
+# {
+## if variable exists already, save old value for restore,
+## otherwise save null value for restore,
+## have to handle unsetting if there was no prior value of one
+## we newly defined.
+## add variable name to a list of feisty defined variables.
+#
+##hmmm: first implem just sets it up and exports the variable.
+## i.e., this method always exports.
+#export "${@}"
+#
+#
+#return 0
+# }
+
+ ##############
+
+ # just shows a separator line for an 80 column console, or uses the first
+ # parameter as the number of columns to expect.
+ function separator()
+ {
+ count=$1; shift
+ if [ -z "$count" ]; then
+ count=79
+ fi
+ echo
+ local i
+ for ((i=0; i < $count - 1; i++)); do
+ echo -n "="
+ done
+ echo
+ echo
+ }
+ # alias for separator.
+ function sep()
+ {
+ separator $*
+ }
+
+ ##############
+
+ function function_sentinel() { return 0; }
+
+ if [ ! -z "$SHELL_DEBUG" ]; then echo "feisty meow function definitions done."; fi
+
+ ##############
+
+ # test code for set_var_if_undefined.
+ run_test=0
+ if [ $run_test != 0 ]; then
+ echo running tests on set_var_if_undefined.
+ flagrant=petunia
+ set_var_if_undefined flagrant forknordle
+ check_result "testing if defined variable would be whacked"
+ if [ $flagrant != petunia ]; then
+ echo set_var_if_undefined failed to leave the test variable alone
+ exit 1
+ fi
+ unset bobblehead_stomper
+ set_var_if_undefined bobblehead_stomper endurance
+ if [ $bobblehead_stomper != endurance ]; then
+ echo set_var_if_undefined failed to set a variable that was not defined yet
+ exit 1
+ fi