3 # This defines some general, useful functions.
5 # test whether we've been here before or not.
7 function_sentinel &>/dev/null
9 # there was no error, so we can skip the inits.
10 if [ ! -z "$SHELL_DEBUG" ]; then
11 echo skipping functions.sh because already defined.
16 if [ -z "$skip_all" ]; then
18 if [ ! -z "$SHELL_DEBUG" ]; then
19 echo function definitions begin...
22 # a handy little method that can be used for date strings. it was getting
23 # really tiresome how many different ways the script did the date formatting.
24 function date_stringer() {
26 if [ -z "$sep" ]; then sep='_'; fi
27 date +"%Y$sep%m$sep%d$sep%H%M$sep%S" | tr -d '/\n/'
30 # makes a directory of the name specified and then tries to change the
31 # current directory to that directory.
33 if [ ! -d "$1" ]; then mkdir -p "$1"; fi
37 # displays the value of a variable in bash friendly format.
40 local varname="$1"; shift
41 if [ -z "$varname" ]; then
44 if [ -z "${!varname}" ]; then
45 echo "$varname undefined"
47 echo "$varname=${!varname}"
52 function success_sound()
54 if [ ! -z "$CLAM_FINISH_SOUND" ]; then
55 bash $FEISTY_MEOW_SCRIPTS/multimedia/sound_play.sh "$CLAM_FINISH_SOUND"
59 function error_sound()
61 if [ ! -z "$CLAM_ERROR_SOUND" ]; then
62 bash $FEISTY_MEOW_SCRIPTS/multimedia/sound_play.sh "$CLAM_ERROR_SOUND"
66 # checks the result of the last command that was run, and if that failed,
67 # then this complains and exits from bash. the function parameters are
68 # used as the message to print as a complaint.
69 function check_result()
72 echo -e "failed on: $*"
78 # locates a process given a search pattern to match in the process list.
80 local -a patterns=("${@}")
81 local PID_DUMP="$(mktemp "$TMP/zz_pidlist.XXXXXX")"
83 if [ "$OS" == "Windows_NT" ]; then
84 # needs to be a windows format filename for 'type' to work.
85 if [ ! -d c:/tmp ]; then
88 # windows7 magical mystery tour lets us create a file c:\\tmp_pids.txt, but then it's not
89 # really there in the root of drive c: when we look for it later. hoping to fix that
90 # problem by using a subdir, which also might be magical thinking from windows perspective.
91 tmppid=c:\\tmp\\pids.txt
92 # we have abandoned all hope of relying on ps on windows. instead we use wmic to get full
93 # command lines for processes.
94 wmic /locale:ms_409 PROCESS get processid,commandline </dev/null >"$tmppid"
96 if [ ! -z "$(uname -a | grep "^MING" )" ]; then
99 # we 'type' the file to get rid of the unicode result from wmic.
100 cmd $flag type "$tmppid" >$PID_DUMP
102 local appropriate_pattern="s/^.* *\([0-9][0-9]*\) *\$/\1/p"
103 for i in "${patterns[@]}"; do
104 PIDS_SOUGHT+=($(cat $PID_DUMP \
106 | sed -n -e "$appropriate_pattern"))
109 /bin/ps $extra_flags wuax >$PID_DUMP
110 # pattern to use for peeling off the process numbers.
111 local appropriate_pattern='s/^[-a-zA-Z_0-9][-a-zA-Z_0-9]* *\([0-9][0-9]*\).*$/\1/p'
112 # remove the first line of the file, search for the pattern the
113 # user wants to find, and just pluck the process ids out of the
115 for i in "${patterns[@]}"; do
116 PIDS_SOUGHT+=($(cat $PID_DUMP \
119 | sed -n -e "$appropriate_pattern"))
122 if [ ${#PIDS_SOUGHT[*]} -ne 0 ]; then
123 local PIDS_SOUGHT2=$(printf -- '%s\n' ${PIDS_SOUGHT[@]} | sort | uniq)
125 PIDS_SOUGHT=${PIDS_SOUGHT2[*]}
126 echo ${PIDS_SOUGHT[*]}
131 # finds all processes matching the pattern specified and shows their full
132 # process listing (whereas psfind just lists process ids).
135 echo "psa finds processes by pattern, but there was no pattern on the command line."
144 echo "Processes matching ${@}..."
146 if [ -n "$IS_DARWIN" ]; then
149 # only print the header the first time.
150 if [ -z "$fuzil_sentinel" ]; then
153 ps $i -w -u | sed -e '1d'
158 # cases besides mac os x's darwin.
160 if [ "$OS" = "Windows_NT" ]; then
161 # special case for windows.
165 ps $extra_flags | grep "$curr"
168 # normal OSes can handle a nice simple query.
174 # an unfortunately similarly named function to the above 'ps' as in process
175 # methods, but this 'ps' stands for postscript. this takes a postscript file
176 # and converts it into pcl3 printer language and then ships it to the printer.
177 # this mostly makes sense for an environment where one's default printer is
178 # pcl. if the input postscript causes ghostscript to bomb out, there has been
179 # some good success running ps2ps on the input file and using the cleaned
180 # postscript file for printing.
181 function ps2pcl2lpr() {
183 gs -sDEVICE=pcl3 -sOutputFile=- -sPAPERSIZE=letter "$i" | lpr -l
187 function fix_alsa() {
188 sudo /etc/init.d/alsasound restart
191 # switches from a /X/path form to an X:/ form. this also processes cygwin paths.
192 function unix_to_dos_path() {
193 # we usually remove dos slashes in favor of forward slashes.
194 if [ ! -z "$SERIOUS_SLASH_TREATMENT" ]; then
195 # unless this flag is set, in which case we force dos slashes.
196 echo "$1" | sed -e 's/\\/\//g' | sed -e 's/\/cygdrive//' | sed -e 's/\/\([a-zA-Z]\)\/\(.*\)/\1:\/\2/' | sed -e 's/\//\\/g'
198 echo "$1" | sed -e 's/\\/\//g' | sed -e 's/\/cygdrive//' | sed -e 's/\/\([a-zA-Z]\)\/\(.*\)/\1:\/\2/'
202 # switches from an X:/ form to an /X/path form.
203 function dos_to_unix_path() {
204 # we always remove dos slashes in favor of forward slashes.
205 echo "$1" | sed -e 's/\\/\//g' | sed -e 's/\([a-zA-Z]\):\/\(.*\)/\/\1\/\2/'
208 # returns a successful value (0) if this system is debian or ubuntu.
209 function debian_like() {
210 # decide if we think this is debian or ubuntu or a variant.
211 DEBIAN_LIKE=$(if [ ! -z "$(grep -i debian /etc/issue)" \
212 -o ! -z "$(grep -i ubuntu /etc/issue)" ]; then echo 1; else echo 0; fi)
213 if [ $DEBIAN_LIKE -eq 1 ]; then
214 # success; this is debianish.
217 # this seems like some other OS.
222 # su function: makes su perform a login.
223 # for some OSes, this transfers the X authority information to the new login.
226 # debian currently requires the full version which imports X authority
227 # information for su.
229 # get the x authority info for our current user.
230 source $FEISTY_MEOW_SCRIPTS/x_win/get_x_auth.sh
232 if [ -z "$X_auth_info" ]; then
233 # if there's no authentication info to pass along, we just do a normal su.
236 # under X, we update the new login's authority info with the previous
238 (unset XAUTHORITY; /bin/su -l $* -c "$X_auth_info ; export DISPLAY=$DISPLAY ; bash")
241 # non-debian supposedly doesn't need the extra overhead any more.
242 # or at least suse doesn't, which is the other one we've tested on.
246 # relabel the console after returning.
247 bash $FEISTY_MEOW_SCRIPTS/tty/label_terminal_with_infos.sh
250 # sudo function wraps the normal sudo by ensuring we replace the terminal
251 # label if they're doing an su with the sudo.
253 local first_command="$1"
255 if [ "$first_command" == "su" ]; then
256 # yep, they were doing an su, but they're back now.
257 bash $FEISTY_MEOW_SCRIPTS/tty/label_terminal_with_infos.sh
261 # trashes the .#blah files that cvs and svn leave behind when finding conflicts.
262 # this kind of assumes you've already checked them for any salient facts.
263 function clean_cvs_junk() {
265 find $i -follow -type f -iname ".#*" -exec perl $FEISTY_MEOW_SCRIPTS/files/safedel.pl {} ";"
269 # overlay for nechung binary so that we can complain less grossly about it when it's missing.
271 local wheres_nechung=$(which nechung 2>/dev/null)
272 if [ -z "$wheres_nechung" ]; then
273 echo "The nechung oracle program cannot be found. You may want to consider"
274 echo "rebuilding the feisty meow applications with this command:"
275 echo "bash $FEISTY_MEOW_SCRIPTS/generator/bootstrap_build.sh"
281 # recreates all the generated files that the feisty meow scripts use.
282 function regenerate() {
283 # do the bootstrapping process again.
284 echo "regenerating feisty meow script environment."
285 bash $FEISTY_MEOW_SCRIPTS/core/bootstrap_shells.sh
287 # force a full reload by turning off sentinel variable and alias.
288 # the nethack one is used by fred's customizations.
289 # interesting note perhaps: found that the NETHACKOPTIONS variable was
290 # not being unset correctly when preceded by an alias. split them up
291 # like they are now due to that bug.
292 unset -v FEISTY_MEOW_GENERATED NECHUNG NETHACKOPTIONS
293 unset -f function_sentinel
294 # reload feisty meow environment in current shell.
295 source $FEISTY_MEOW_SCRIPTS/core/launch_feisty_meow.sh
296 # run nechung oracle to give user a new fortune.
300 # generates a random password where the first parameter is the number of characters
301 # in the password (default 20) and the second parameter specifies whether to use
302 # special characters (1) or not (0).
303 # found function at http://legroom.net/2010/05/06/bash-random-password-generator
304 function random_password()
306 [ "$2" == "0" ] && CHAR="[:alnum:]" || CHAR="[:graph:]"
307 cat /dev/urandom | tr -cd "$CHAR" | head -c ${1:-32}
311 # a wrapper for the which command that finds items on the path. some OSes
312 # do not provide which, so we want to not be spewing errors when that
317 which which &>/dev/null
318 if [ $? -ne 0 ]; then
319 # there is no which command here. we produce nothing due to this.
322 echo $(which $to_find)
325 # copies a set of custom scripts into the proper location for feisty meow
326 # to merge their functions and aliases with the standard set.
327 function recustomize()
330 if [ -z "$user" ]; then
331 # use our default example user if there was no name provided.
334 if [ ! -d "$FEISTY_MEOW_DIR/customizing/$user" ]; then
335 echo "The customization folder provided for $user should be:"
336 echo " '$FEISTY_MEOW_DIR/customizing/$user'"
337 echo "but that folder does not exist. Skipping customization."
340 regenerate >/dev/null
341 pushd "$FEISTY_MEOW_GENERATED/custom" &>/dev/null
342 local incongruous_files="$(bash "$FEISTY_MEOW_SCRIPTS/files/list_non_dupes.sh" "$FEISTY_MEOW_DIR/customizing/$user" "$FEISTY_MEOW_GENERATED/custom")"
343 if [ ${#incongruous_files} -ge 1 ]; then
344 echo "cleaning unknown older overrides..."
345 perl "$FEISTY_MEOW_SCRIPTS/files/safedel.pl" $incongruous_files
349 echo "copying custom overrides for $user"
350 mkdir "$FEISTY_MEOW_GENERATED/custom" 2>/dev/null
351 perl "$FEISTY_MEOW_SCRIPTS/text/cpdiff.pl" "$FEISTY_MEOW_DIR/customizing/$user" "$FEISTY_MEOW_GENERATED/custom"
352 if [ -d "$FEISTY_MEOW_DIR/customizing/$user/scripts" ]; then
353 echo "copying custom scripts for $user"
354 \cp -R "$FEISTY_MEOW_DIR/customizing/$user/scripts" "$FEISTY_MEOW_GENERATED/custom/"
360 function add_cygwin_drive_mounts() {
361 for i in c d e f g h q z ; do
362 ln -s /cygdrive/$i $i
367 # takes a file to modify, and then it will replace any occurrences of the
368 # pattern provided as the second parameter with the text in the third
370 function replace_pattern_in_file()
372 local file="$1"; shift
373 local pattern="$1"; shift
374 local replacement="$1"; shift
375 if [ -z "$file" -o -z "$pattern" -o -z "$replacement" ]; then
376 echo "replace_pattern_in_file: needs a filename, a pattern to replace, and the"
377 echo "text to replace that pattern with."
380 sed -i -e "s%$pattern%$replacement%g" "$file"
385 function function_sentinel() { return 0; }
387 if [ ! -z "$SHELL_DEBUG" ]; then echo function definitions end....; fi