#!/bin/bash
-##############################################################################
+##############
+
# variables script:
# Defines the environment variables used by the personalized unix
# environment.
-##############################################################################
+# Author: Chris Koeritz
-if [ ! -z "$SHELL_DEBUG" ]; then echo variables initialization begins...; fi
+##############
-##############################################################################
-# System variables.
-##############################################################################
-# OS stands for the operating system that we think is running.
-if [ -z "$OS" ]; then
- export OS=UNIX
-fi
-export IS_DARWIN=$(echo $OSTYPE | grep -i darwin)
+#hmmm: moved from functions.sh; does that hose everything up?
-if [ -z "$HOME" ]; then
- if [ "$OS" == "Windows_NT" ]; then
- export HOME=/c/home
- if [ ! -d $HOME ]; then
- mkdir $HOME
- fi
- fi
-fi
+ # defines a variable within the feisty meow environment and remembers that
+ # this is a new or modified definition. if the feisty meow codebase is
+ # unloaded, then so are all the variables that were defined.
+ # this function always exports the variables it defines.
+ function define_yeti_variable()
+ {
+# if variable exists already, save old value for restore,
+# otherwise save null value for restore,
+# have to handle unsetting if there was no prior value of one
+# we newly defined.
+# add variable name to a list of feisty defined variables.
-# patch home to undo cygwin style of drive letter.
-export HOME=$(echo $HOME | sed -e 's/\/cygdrive\//\//g')
-#echo HOME is now $HOME
+#hmmm: first implem just sets it up and exports the variable.
+# i.e., this method always exports.
+export "${@}"
-if [ "$OS" == "Windows_NT" ]; then
- export HOSTNAME=$(echo $HOSTNAME | tr A-Z a-z)
-fi
-##############################################################################
-# Directory variables.
-##############################################################################
-# The yeti library directory holds useful shell scripts, public databases,
-# configuration examples, javascript code, and other stuff.
-export SCRIPT_SYSTEM=feisty_meow
+return 0
+ }
-#if [ -z "$FEISTY_MEOW_DIR" ]; then export FEISTY_MEOW_DIR="$HOME/$SCRIPT_SYSTEM"; fi
-#if [ -z "$FEISTY_MEOW_SCRIPTS" ]; then export FEISTY_MEOW_SCRIPTS="$FEISTY_MEOW_DIR/scripts"; fi
-#if [ -z "$FEISTY_MEOW_SCRIPTS" ]; then export FEISTY_MEOW_SCRIPTS="$FEISTY_MEOW_SCRIPTS"; fi
-# include helpful functions.
-source "$FEISTY_MEOW_SCRIPTS/core/functions.sh"
+##############
-# LIBDIR is an older variable that points at the root of the yeti code.
-export LIBDIR=$FEISTY_MEOW_DIR
+# this section should always run or bash will reset them on us.
+# these need to be as minimal as possible.
-if [ -z "$FEISTY_MEOW_GENERATED" ]; then
- # The generated scripts directory is where automatically generated files live.
- # It is separate from the main body of the shell scripts in order to keep things from
- # exploding.
- export FEISTY_MEOW_GENERATED=$HOME/.zz_auto_gen
-fi
+# sets the main prompt to a simple default, with user@host.
+define_yeti_variable PS1='\u@\h $ ';
+# sets the history length and max file size so we can get some long history around here.
+define_yeti_variable HISTSIZE=1000000
+define_yeti_variable HISTFILESIZE=8000000
-##############################################################################
-# other variables...
-##############################################################################
+# make the TERM available to all sub-shells.
+define_yeti_variable TERM
+
+##############
+
+# we'll run this again only if we think it's needed.
+if [ -z "$CORE_VARIABLES_LOADED" ]; then
-# pull in the custom overrides for feisty_meow scripts.
-for i in $FEISTY_MEOW_SCRIPTS/custom/*.sh; do
- if [ ! -z "$SHELL_DEBUG" ]; then
- echo "loading customization: $(basename $(dirname $i))/$(basename $i)"
+ if [ ! -z "$DEBUG_FEISTY_MEOW" ]; then echo variables initialization begins...; fi
+
+ ##############
+
+ # start with some simpler things.
+
+ define_yeti_variable SCRIPT_SYSTEM=feisty_meow
+
+ # OS variable records the operating system we think we found.
+ if [ -z "$OS" ]; then
+ define_yeti_variable OS=UNIX
fi
- source $i
-done
+ define_yeti_variable IS_DARWIN=$(echo $OSTYPE | grep -i darwin)
+
+ ##############
-# sets the prompts to what we (i.e., i) like...
-# there are four different prompts. the first one, PS1, is the one that users
-# see the most often.
-export PS1='\u@\h $ ';
-### export PS2='> '; export PS3='#? '; export PS4='+ '
-
-# variables for perl.
-export PERLLIB
-if [ "$OS" != "Windows_NT" ]; then
- PERLLIB+="/usr/lib/perl5"
-else
-#echo "the scripts dir is $FEISTY_MEOW_SCRIPTS"
- FEISTY_MEOW_SCRIPTS="$(echo $FEISTY_MEOW_SCRIPTS | sed -e 's/\\/\//g')"
- FEISTY_MEOW_SCRIPTS="$FEISTY_MEOW_SCRIPTS"
-#echo "the scripts dir is now $FEISTY_MEOW_SCRIPTS"
- export PERLIO=:perlio
- # choose perl's IO over the system's so we can handle file bytes exactly.
-fi
+ # guess the current platform.
+ IS_UNIX=$(uname | grep -i linux)
+ if [ -z "$IS_UNIX" ]; then IS_UNIX=$(uname | grep -i unix); fi
+ if [ -z "$IS_UNIX" ]; then IS_UNIX=$(uname | grep -i darwin); fi
+ IS_DOS=$(uname | grep -i ming)
+ if [ -z "$IS_DOS" ]; then IS_DOS=$(uname | grep -i cygwin); fi
-#make this automatic!
-PERLLIB+=":$FEISTY_MEOW_SCRIPTS/core:$FEISTY_MEOW_SCRIPTS/text:$FEISTY_MEOW_SCRIPTS/files:$FEISTY_MEOW_SCRIPTS/archival"
+ # now if we're stuck in DOS, try to determine the type of system.
+ if [ ! -z "$IS_DOS" ]; then
+ # IS_MSYS will be non-empty if this is the msys toolset. otherwise
+ # we assume that it's cygwin.
+ IS_MSYS=$(uname | grep -i ming)
-# set this so nechung can find its data.
-export NECHUNG=$LIBDIR/database/fortunes.dat
+ # if not MSYS, then we'll assume cygwin and set the cygwin root var.
+ if [ -z "$IS_MSYS" ]; then
+ define_yeti_variable CYGROOT=$(cygpath -w -m /)
+ fi
+ fi
-# ensure we use the right kind of rsh for security.
-export CVS_RSH=ssh
+ ##############
+
+ # fallbacks to set crucial variables for feisty meow...
+
+ # set the main root directory variable for the feisty meow codebase.
+ # this is only used for extreme failure modes, when the values were not
+ # pulled in from our auto-generated config.
+ if [ -z "$FEISTY_MEOW_APEX" ]; then
+ if [ -d "$HOME/feisty_meow" ]; then
+ define_yeti_variable FEISTY_MEOW_APEX="$HOME/feisty_meow"
+ define_yeti_variable FEISTY_MEOW_SCRIPTS="$FEISTY_MEOW_SCRIPTS"
+ fi
+ fi
-# sets the history length and max file size so we can get some long history around here.
-HISTSIZE=1000000
-HISTFILESIZE=2000000
-
-# set the editor for subversion if it hasn't already been set.
-if [ -z "$SVN_EDITOR" ]; then
-#hmmm: not sure what original reason for having these different was...
- if [ "$OS" == "Windows_NT" ]; then
- export SVN_EDITOR=$(which gvim)
- else
- export SVN_EDITOR=$(which vi)
+ # main declaration of the transients area.
+ if [ -z "$TMP" ]; then
+ define_yeti_variable TMP=$HOME/.tmp
fi
-fi
-# include variables needed for compiling hoople and using its scripts.
-if [ -z "$FEISTY_MEOW_DIR" ]; then
- if [ -d "$HOME/feisty_meow" ]; then
- export FEISTY_MEOW_DIR="$HOME/feisty_meow"
+ # set up the top-level for all build creations and logs and such.
+ if [ -z "$FEISTY_MEOW_GENERATED_STORE" ]; then
+ define_yeti_variable FEISTY_MEOW_GENERATED_STORE="$TMP/generated-feisty_meow"
+ fi
+ if [ ! -d "$FEISTY_MEOW_GENERATED_STORE" ]; then
+ mkdir -p "$FEISTY_MEOW_GENERATED_STORE"
+ fi
+ # set up our effluent outsourcing valves.
+ if [ -z "$TEMPORARIES_PILE" ]; then
+ define_yeti_variable TEMPORARIES_PILE="$FEISTY_MEOW_GENERATED_STORE/temporaries"
+ fi
+ if [ ! -d "$TEMPORARIES_PILE" ]; then
+ mkdir -p "$TEMPORARIES_PILE"
fi
-fi
-# initialize the build variables, if possible.
-found_build_vars=0
-if [ ! -z "$FEISTY_MEOW_DIR" ]; then
- # first guess at using the old school bin directory.
- bv="$FEISTY_MEOW_DIR/bin/build_variables.sh"
- if [ -f "$bv" ]; then
- # the old bin directory is present, so let's use its build vars.
- source "$bv" "$bv"
- found_build_vars=1
+ # similarly, make sure we have someplace to look for our generated files, if
+ # we were not handed a value.
+ if [ -z "$FEISTY_MEOW_LOADING_DOCK" ]; then
+ # The generated scripts directory is where automatically generated files live.
+ # It is separate from the main body of the shell scripts in order to keep things from
+ # exploding.
+ define_yeti_variable FEISTY_MEOW_LOADING_DOCK=$HOME/.zz_feisty_loading
+ fi
+
+ ##############
+
+ # set up the color_add variable which is a flag that lets ls know colors work.
+
+ # test if we can use color in ls...
+ ls --help 2>&1 | grep -i -q color
+ if [ $? -eq 0 ]; then
+ export color_add='--color=auto'
else
- # try again with the new school location for the file.
- bv="$FEISTY_MEOW_DIR/scripts/generator/build_variables.sh"
- if [ -f "$bv" ]; then
- # yep, that one looks good, so pull in the build defs.
- source "$bv" "$bv"
- found_build_vars=1
- else
- # try once more with new school and assume we're deep.
- bv="$FEISTY_MEOW_DIR/../../scripts/generator/build_variables.sh"
- if [ -f "$bv" ]; then
- # sweet, there is something there.
- source "$bv" "$bv"
- found_build_vars=1
+ export color_add=
+ fi
+ unset test_ls_colors
+
+ ##############
+
+ # umask sets a permission mask for all file creations.
+ # this mask disallows writes by "group" and "others".
+ umask 022
+ # this mask disallows writes by the "group" and disallows "others" completely.
+ #umask 027
+
+ # ulimit sets user limits. we set the maximum allowed core dump file size
+ # to zero, because it is obnoxious to see the core dumps from crashed
+ # programs lying around everywhere.
+ ulimit -c 0
+
+ ##############
+
+ # user variables, sort of... if they haven't given themselves a name yet,
+ # then we will make one up for them.
+
+ # define a default name, if one wasn't already set.
+ if [ -z "$NAME" ]; then
+ define_yeti_variable NAME='Unset Q. Namington, Fixley Your Name III'
+ fi
+
+ ##############
+
+ # variables for perl.
+
+ define_yeti_variable PERLLIB+="/usr/lib/perl5"
+ define_yeti_variable PERL5LIB+="/usr/lib/perl5"
+ if [ "$OS" == "Windows_NT" ]; then
+ define_yeti_variable PERLIO=:perlio
+ # choose perl's IO over the ms-windows version so we can handle file
+ # bytes properly.
+ fi
+
+ # iterate across our sub-directories and find the perl scripts.
+ # this currently only looks one level down.
+ for i in $FEISTY_MEOW_SCRIPTS/*; do
+ if [ -d "$i" ]; then
+ # check if there is a perl file present; add the folder to PERLLIB if so.
+ ls $i/*.pl &>/dev/null
+ if [ $? -eq 0 ]; then
+ PERLLIB+=":$(dos_to_unix_path $i)"
+ PERL5LIB+=":$(dos_to_unix_path $i)"
fi
fi
- fi
-fi
+ done
+ #echo PERLLIB is now $PERLLIB
+
+ ##############
+
+ # set this so nechung can find its data.
+ define_yeti_variable NECHUNG=$FEISTY_MEOW_APEX/infobase/fortunes.dat
+
+## # establish a pipe for less to see our beloved syntax highlighting.
+## define_yeti_variable LESSOPEN="| source-highlight -f esc -o STDOUT -i %s"
-# augment the configuration if we found our build variables.
-if [ $found_build_vars == 1 ]; then
+ # the base checkout list is just to update feisty_meow. additional folder
+ # names can be added in your customized scripts. the space at the end of
+ # this variable is important and allows users to extend the list like:
+ # define_yeti_variable REPOSITORY_DIR+="muppets configs"
+ # see the customize/fred folder for a live example.
+ define_yeti_variable REPOSITORY_LIST="$FEISTY_MEOW_APEX "
+
+ # the archive collections list is a set of directories that are major
+ # repositories of data which can be synched to backup drives.
+ define_yeti_variable ARCHIVE_COLLECTIONS_LIST=
- # the binary directory contains handy programs we use a lot in yeti. we set up the path to it
- # here based on the operating system.
- # note that yeti has recently become more dependent on hoople. hoople was always the source of
- # the binaries, but now we don't ship them with yeti any more as pre-built items. this reduces
- # the size of the code package a lot and shortens up our possible exposure to compromised
- # binaries. people can bootstrap up their own set from hoople now instead.
- export BINDIR=$FEISTY_MEOW_DIR/production/binaries
+ # initializes the feisty meow build variables, if possible.
+ function initialize_build_variables()
+ {
+ found_build_vars=0
+ # we need to know the feisty meow directory, or we bail.
+ if [ -z "$FEISTY_MEOW_APEX" ]; then return; fi
+ # pick from our expected generator folder, but make sure it's there...
+ buildvars="$FEISTY_MEOW_SCRIPTS/generator/build_variables.sh"
+ if [ -f "$buildvars" ]; then
+ # yep, that one looks good, so pull in the build defs.
+ source "$buildvars" "$buildvars"
+ found_build_vars=1
+ fi
+ # now augment the environment if we found our build variables.
+ if [ $found_build_vars == 1 ]; then
+ # the binary directory contains our collection of handy programs.
+ define_yeti_variable FEISTY_MEOW_BINARIES=$TARGETS_STORE
+ # add binaries created within build to the path.
+ define_yeti_variable PATH="$(dos_to_unix_path $FEISTY_MEOW_BINARIES):$PATH"
+ # Shared libraries are located via this variable.
+ define_yeti_variable LD_LIBRARY_PATH="$(dos_to_unix_path $LD_LIBRARY_PATH):$(dos_to_unix_path $FEISTY_MEOW_BINARIES)"
+ fi
+ }
+
+ ##############
+
+ # windoze specific patching up missing things.
+
+ if [ "$OS" == "Windows_NT" ]; then
+ define_yeti_variable HOSTNAME=$(echo $HOSTNAME | tr A-Z a-z)
+ fi
+
+ ##############
+
+ # load in the build environment.
+ initialize_build_variables
+
+ ##############
+
+ # add to the PATH variables used for locating applications. this step is taken after any
+ # potential overrides from the user.
+ define_yeti_variable PATH="$(dos_to_unix_path $FEISTY_MEOW_LOADING_DOCK):$PATH:$(find /usr/local/games -maxdepth 1 -type d -exec echo -n {}: ';' 2>/dev/null)/sbin"
+
+ ##############
- # add binaries created within build to the path.
- export PATH="$(dos_to_msys_path $BUILD_TOP/build/bin):$PATH"
+ # set the SHUNIT_PATH so our shunit tests can find the codebase.
+ define_yeti_variable SHUNIT_PATH="$FEISTY_MEOW_SCRIPTS/shunit"
+
+ ##############
- # Shared libraries are located via this variable.
- export LD_LIBRARY_PATH="$(dos_to_msys_path $LD_LIBRARY_PATH):$(dos_to_msys_path $BINDIR)"
+ define_yeti_variable CORE_VARIABLES_LOADED=true
+
+ if [ ! -z "$DEBUG_FEISTY_MEOW" ]; then echo variables initialization ends....; fi
fi
-# Set the path for locating applications.
-export PATH="$(dos_to_msys_path $BINDIR):$(dos_to_msys_path $FEISTY_MEOW_GENERATED):$PATH:/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/lib:/usr/games:/usr/bin:."
+##############
-if [ ! -z "$SHELL_DEBUG" ]; then echo variables initialization ends....; fi
+# pull in the custom overrides for feisty_meow scripts. this is done last,
+# because we want to set everything up as expected, then let the user
+# override individual variables and definitions. we also don't guard this
+# to avoid running it again, because we don't know what mix of functions and
+# aliases they want to define in there.
+for i in $FEISTY_MEOW_LOADING_DOCK/custom/*.sh; do
+ if [ ! -f "$i" ]; then
+ # skip it if it's not real.
+ continue;
+ fi
+ if [ ! -z "$DEBUG_FEISTY_MEOW" ]; then
+ echo "loading customization: $(basename $(dirname $i))/$(basename $i)"
+ fi
+ source "$i"
+done