# This defines some general, useful functions.
+#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?
+
+##############
+
# test whether we've been here before or not.
skip_all=
type function_sentinel &>/dev/null
if [ $? -eq 0 ]; then
# there was no error, so we can skip the inits.
- if [ ! -z "$SHELL_DEBUG" ]; then
+ if [ ! -z "$DEBUG_FEISTY_MEOW" ]; then
echo "skipping function definitions, because already defined."
fi
skip_all=yes
if [ -z "$skip_all" ]; then
- if [ ! -z "$SHELL_DEBUG" ]; then
+ if [ ! -z "$DEBUG_FEISTY_MEOW" ]; then
echo "feisty meow function definitions beginning now..."
fi
# checks the result of the last command that was run, and if that failed,
# then this complains and exits from bash. the function parameters are
# used as the message to print as a complaint.
- function check_result()
+ function test_or_fail()
{
if [ $? -ne 0 ]; then
- echo -e "failed on: $*"
+ echo -e "\n\nfailed on: $*"
error_sound
exit 1
fi
}
+ # like test_or_fail, but will keep going after complaining.
+ function test_or_continue()
+ {
+ if [ $? -ne 0 ]; then
+ echo -e "\n\nfailed on: $*"
+ error_sound
+ fi
+ }
+
+ # wraps secure shell with some parameters we like, most importantly to enable X forwarding.
+ function ssh()
+ {
+ local args=($*)
+ save_terminal_title
+ # 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.
+ export TERM=linux
+ /usr/bin/ssh -X -C "${args[@]}"
+ restore_terminal_title
+ }
+
# locates a process given a search pattern to match in the process list.
# supports a single command line flag style parameter of "-u USERNAME";
# if the -u flag is found, a username is expected afterwards, and only the
regenerate >/dev/null
pushd "$FEISTY_MEOW_LOADING_DOCK/custom" &>/dev/null
incongruous_files="$(bash "$FEISTY_MEOW_SCRIPTS/files/list_non_dupes.sh" "$FEISTY_MEOW_SCRIPTS/customize/$custom_user" "$FEISTY_MEOW_LOADING_DOCK/custom")"
+
+ local fail_message="\nare the perl dependencies installed? if you're on ubuntu or debian, try this:\n
+ $(grep "apt.*perl" $FEISTY_MEOW_APEX/readme.txt)\n"
#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
+ test_or_continue "running safedel. $fail_message"
echo
fi
popd &>/dev/null
echo "copying custom overrides for $custom_user"
mkdir -p "$FEISTY_MEOW_LOADING_DOCK/custom" 2>/dev/null
perl "$FEISTY_MEOW_SCRIPTS/text/cpdiff.pl" "$FEISTY_MEOW_SCRIPTS/customize/$custom_user" "$FEISTY_MEOW_LOADING_DOCK/custom"
+ test_or_continue "running cpdiff. $fail_message"
+
if [ -d "$FEISTY_MEOW_SCRIPTS/customize/$custom_user/scripts" ]; then
echo "copying custom scripts for $custom_user"
\cp -R "$FEISTY_MEOW_SCRIPTS/customize/$custom_user/scripts" "$FEISTY_MEOW_LOADING_DOCK/custom/"
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
-# }
-
##############
#hmmm: this points to an extended functions file being needed; not all of these are core.
##############
+ # count the number of sub-directories in a directory and echo the result.
+ function count_directories()
+ {
+ local appsdir="$1"; shift
+ numdirs="$(find "$appsdir" -mindepth 1 -maxdepth 1 -type d | wc -l)"
+ echo $numdirs
+ }
+
+ # takes a string and capitalizes just the first character. any capital letters in the remainder of
+ # the string are made lower case. the processed string is returned by an echo.
+ function capitalize_first_char()
+ {
+ local to_dromedary="$1"; shift
+ to_dromedary="$(tr '[:lower:]' '[:upper:]' <<< ${to_dromedary:0:1})$(tr '[:upper:]' '[:lower:]' <<< ${to_dromedary:1})"
+ echo "$to_dromedary"
+ }
+
+ # given a source path and a target path, this will make a symbolic link from
+ # the source to the destination, but only if the source actually exists.
+ function make_safe_link()
+ {
+ local src="$1"; shift
+ local target="$1"; shift
+
+ if [ -d "$src" ]; then
+ ln -s "$src" "$target"
+ test_or_fail "Creating symlink from '$src' to '$target'"
+ fi
+ echo "Created symlink from '$src' to '$target'."
+ }
+
+ ##############
+
+ # NOTE: no more function definitions are allowed after this point.
+
function function_sentinel()
{
return 0;
}
- if [ ! -z "$SHELL_DEBUG" ]; then echo "feisty meow function definitions done."; fi
+ if [ ! -z "$DEBUG_FEISTY_MEOW" ]; then echo "feisty meow function definitions done."; fi
##############
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"
+ test_or_fail "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
projects / feisty_meow.git / blobdiff