6 # Defines the environment variables used by the personalized unix
8 # Author: Chris Koeritz
12 #hmmm: moved from functions.sh; does that hose everything up?
14 # defines a variable within the feisty meow environment and remembers that
15 # this is a new or modified definition. if the feisty meow codebase is
16 # unloaded, then so are all the variables that were defined.
17 # this function always exports the variables it defines.
18 function define_yeti_variable()
20 # if variable exists already, save old value for restore,
21 # otherwise save null value for restore,
22 # have to handle unsetting if there was no prior value of one
24 # add variable name to a list of feisty defined variables.
26 #hmmm: first implem just sets it up and exports the variable.
27 # i.e., this method always exports.
37 # this section should always run or bash will reset them on us.
38 # these need to be as minimal as possible.
40 # sets the main prompt to a simple default, with user@host.
41 define_yeti_variable PS1='\u@\h $ ';
42 # sets the history length and max file size so we can get some long history around here.
43 define_yeti_variable HISTSIZE=1000000
44 define_yeti_variable HISTFILESIZE=8000000
46 # make the TERM available to all sub-shells.
47 define_yeti_variable TERM
51 # we'll run this again only if we think it's needed.
52 if [ -z "$NECHUNG" ]; then
54 if [ ! -z "$SHELL_DEBUG" ]; then echo variables initialization begins...; fi
58 # start with some simpler things.
60 define_yeti_variable SCRIPT_SYSTEM=feisty_meow
62 # OS variable records the operating system we think we found.
64 define_yeti_variable OS=UNIX
66 define_yeti_variable IS_DARWIN=$(echo $OSTYPE | grep -i darwin)
70 # guess the current platform.
71 IS_UNIX=$(uname | grep -i linux)
72 if [ -z "$IS_UNIX" ]; then IS_UNIX=$(uname | grep -i unix); fi
73 if [ -z "$IS_UNIX" ]; then IS_UNIX=$(uname | grep -i darwin); fi
74 IS_DOS=$(uname | grep -i ming)
75 if [ -z "$IS_DOS" ]; then IS_DOS=$(uname | grep -i cygwin); fi
77 # now if we're stuck in DOS, try to determine the type of system.
78 if [ ! -z "$IS_DOS" ]; then
79 # IS_MSYS will be non-empty if this is the msys toolset. otherwise
80 # we assume that it's cygwin.
81 IS_MSYS=$(uname | grep -i ming)
86 # fallbacks to set crucial variables for feisty meow...
88 # set the main root directory variable for the feisty meow codebase.
89 # this is only used for extreme failure modes, when the values were not
90 # pulled in from our auto-generated config.
91 if [ -z "$FEISTY_MEOW_DIR" ]; then
92 if [ -d "$HOME/feisty_meow" ]; then
93 define_yeti_variable FEISTY_MEOW_DIR="$HOME/feisty_meow"
94 define_yeti_variable FEISTY_MEOW_SCRIPTS="$FEISTY_MEOW_SCRIPTS"
98 # similarly, make sure we have someplace to look for our generated files, if
99 # we were not handed a value.
100 if [ -z "$FEISTY_MEOW_GENERATED" ]; then
101 # The generated scripts directory is where automatically generated files live.
102 # It is separate from the main body of the shell scripts in order to keep things from
104 define_yeti_variable FEISTY_MEOW_GENERATED=$HOME/.zz_auto_gen
109 # umask sets a permission mask for all file creations.
110 # this mask disallows writes by "group" and "others".
112 # this mask disallows writes by the "group" and disallows "others" completely.
115 # ulimit sets user limits. we set the maximum allowed core dump file size
116 # to zero, because it is obnoxious to see the core dumps from crashed
117 # programs lying around everywhere.
122 # user variables, sort of... if they haven't given themselves a name yet,
123 # then we will make one up for them.
125 # define a default name, if one wasn't already set.
126 if [ -z "$NAME" ]; then
127 define_yeti_variable NAME='Unset Q. Namington, Fixley Your Name III'
132 # variables for perl.
134 define_yeti_variable PERLLIB+="/usr/lib/perl5"
135 if [ "$OS" == "Windows_NT" ]; then
136 define_yeti_variable PERLIO=:perlio
137 # choose perl's IO over the ms-windows version so we can handle file
141 # iterate across our sub-directories and find the perl scripts.
142 # this currently only looks one level down.
143 for i in $FEISTY_MEOW_SCRIPTS/*; do
145 # check if there is a perl file present; add the folder to PERLLIB if so.
146 ls $i/*.pl &>/dev/null
147 if [ $? -eq 0 ]; then
148 PERLLIB+=":$(dos_to_unix_path $i)"
152 #echo PERLLIB is now $PERLLIB
156 # set this so nechung can find its data.
157 define_yeti_variable NECHUNG=$FEISTY_MEOW_DIR/infobase/fortunes.dat
159 # ensure we use the right kind of secure shell.
160 # define_yeti_variable CVS_RSH=$FEISTY_MEOW_SCRIPTS/security/ssh.sh
161 # define_yeti_variable GIT_SSH=$FEISTY_MEOW_SCRIPTS/security/ssh.sh
163 # the base checkout list is just to update feisty_meow. additional folder
164 # names can be added in your customized scripts. the space at the end of
165 # this variable is important and allows users to extend the list like:
166 # define_yeti_variable REPOSITORY_DIR+="muppets configs"
167 define_yeti_variable REPOSITORY_LIST="feisty_meow "
169 # initializes the feisty meow build variables, if possible.
170 function initialize_build_variables()
173 # we need to know the feisty meow directory, or we bail.
174 if [ -z "$FEISTY_MEOW_DIR" ]; then return; fi
175 # pick from our expected generator folder, but make sure it's there...
176 buildvars="$FEISTY_MEOW_SCRIPTS/generator/build_variables.sh"
177 if [ -f "$buildvars" ]; then
178 # yep, that one looks good, so pull in the build defs.
179 source "$buildvars" "$buildvars"
182 # now augment the environment if we found our build variables.
183 if [ $found_build_vars == 1 ]; then
184 # the binary directory contains handy programs we use a lot. we set
185 # up the path to it here based on the operating system.
186 define_yeti_variable BINDIR=$FEISTY_MEOW_DIR/production/binaries
187 # add binaries created within build to the path.
188 define_yeti_variable PATH="$(dos_to_unix_path $BINDIR):$PATH"
189 # Shared libraries are located via this variable.
190 define_yeti_variable LD_LIBRARY_PATH="$(dos_to_unix_path $LD_LIBRARY_PATH):$(dos_to_unix_path $BINDIR)"
196 # windoze specific patching up missing things.
198 if [ "$OS" == "Windows_NT" ]; then
199 define_yeti_variable HOSTNAME=$(echo $HOSTNAME | tr A-Z a-z)
204 # load in the build environment.
205 initialize_build_variables
209 # add to the PATH variables used for locating applications. this step is taken after any
210 # potential overrides from the user.
211 define_yeti_variable PATH="$(dos_to_unix_path $FEISTY_MEOW_GENERATED):$PATH:$(find /usr/local/games -maxdepth 1 -type d -exec echo -n {}: ';' 2>/dev/null)/sbin"
215 # set the SHUNIT_DIR so our shunit tests can find the codebase.
216 define_yeti_variable SHUNIT_DIR="$FEISTY_MEOW_SCRIPTS/shunit"
220 if [ ! -z "$SHELL_DEBUG" ]; then echo variables initialization ends....; fi
225 # pull in the custom overrides for feisty_meow scripts. this is done last,
226 # because we want to set everything up as expected, then let the user
227 # override individual variables and definitions. we also don't guard this
228 # to avoid running it again, because we don't know what mix of functions and
229 # aliases they want to define in there.
230 for i in $FEISTY_MEOW_GENERATED/custom/*.sh; do
231 if [ ! -f "$i" ]; then
232 # skip it if it's not real.
235 if [ ! -z "$SHELL_DEBUG" ]; then
236 echo "loading customization: $(basename $(dirname $i))/$(basename $i)"