-#! /usr/bin/env bash
-# Here we setup the environment
-# variables needed by the tinyos
-# make system
+#!/usr/bin/env bash
+#
+# Here we setup the environment variables needed by the tinyos make system.
+# Users source this script from their shell to setup tinyos for their login,
+# and may source again at any time to change which installed TinyOS source
+# tree their code shall be built against.
+TOSCFG="$HOME/.tosrc"
TOSBASE=/opt/tinyos
+RCFILES="$HOME/.bashrc $HOME/.shrc $HOME/.kshrc $HOME/.cshrc $ENV"
-# $1 is a directory or tos version number
-# returns a fully rooted and valid TOSROOT
-getdir()
+# $1 is a directory or tos version number returns a fully rooted and valid
+# TOSROOT, or nothing.
+gettosroot()
{
if [ -d "$1" -a -d "$1/tos" ]; then
- echo "$1"
+ echo $(cd $1 && pwd)
elif [ -d "$TOSBASE/$1" -a -d "$TOSBASE/$1/tos" ]; then
echo "$TOSBASE/$1"
fi
}
-# Clear TOS environment
-if [ -n "$TOSROOT" ]; then
- CLASSPATH=$(echo $CLASSPATH | sed -e "s|:$TOSROOT/support/sdk/java||")
-fi
-unset TOSDIR MAKERULES
+# Update CLASSPATH by replacing the element value in $1 with the element value
+# in $2. An empty $2 removes element $1, if present. An empty $1, or $1 not
+# present, adds $2.
+updclasspath()
+{
+ local jpath="support/sdk/java/tinyos.jar"
+ if [ -n "$1" -a -n "$2" ] && \
+ echo "$CLASSPATH" | grep -q "$1/$jpath"; then
+ CLASSPATH=$(echo $CLASSPATH | sed -e "s|:$1/$jpath|:$2/$jpath|")
+ elif [ -n "$2" ]; then
+ CLASSPATH="$CLASSPATH:$2/$jpath"
+ elif [ -n "$1" ]; then
+ CLASSPATH=$(echo $CLASSPATH | sed -e "s|:$1/$jpath||")
+ fi
+ export CLASSPATH
+}
-# Set TOS environment
-TOSROOT=$(getdir "$1")
-if [ -z "$TOSROOT" ]; then
- TOSROOT=$(cat ~/.tosrc 2>/dev/null)
-fi
+# Install a tinyos.sh invocation in user shell rc files.
+installshrc()
+{
+ for rc in $RCFILES; do
+ if [ -f $rc ] && ! grep -q "$TOSBASE/tinyos.sh" $rc; then
+ echo "[ -d $TOSBASE ] && . $TOSBASE/tinyos.sh" >> $rc 2>/dev/null
+ fi
+ done
+}
+
+# Uninstall the tinyos.sh invocation in user shell rc files.
+uninstallshrc()
+{
+ for rc in $RCFILES; do
+ if [ -f $rc ] && grep -q "$TOSBASE/tinyos.sh" $rc; then
+ grep -v "$TOSBASE/tinyos.sh" $rc > $rc.$$
+ mv -f $rc.$$ $rc
+ fi
+ done
+}
+
+# List available TinyOS source versions
+listsources()
+{
+ echo -n "Available sources:"
+ find $TOSBASE -maxdepth 2 -name tos -type d 2>/dev/null | sort | \
+ while read dir; do
+ echo -n " $(basename -- $(dirname -- $dir))"
+ done
+ echo
+}
+
+# MAIN
+
+if [ "$1" = "-t" ]; then
+ # Display TOS environment
+ if [ -z "$TOSROOT" ]; then
+ echo "tinyos: NOT configured"
+ else
+ echo "TOSROOT=$TOSROOT"
+ fi
+elif [ "$1" = "-l" ]; then
+ listsources
+elif [ "$1" = "-h" ]; then
+ cat <<EOF1
+Each TinyOS user must type the following to configure their login:
+
+ . $TOSBASE/tinyos.sh <version>
+
+<version> is the version of an installed source tree or the filesystem path to
+a TinyOS source tree
-if [ -z "$TOSROOT" ]; then
- echo "No TinyOS source directory found. Usage:" >&2
- echo "source /opt/tinyos/tinyos.sh [<version> | <directory>]" >&2
- export TOSROOT TOSDIR MAKERULES
+EOF1
+ listsources
+ cat <<EOF2
+
+Run this command at any time to change the TinyOS source tree for the current
+and all future shell invocations. The tree setting is persistent across
+logins.
+EOF2
+elif [ "$(basename -- $0)" = tinyos.sh ]; then
+ # Operations below here cannot be executed in a sub-shell
+ echo "tinyos: must be sourced"
+elif [ "$1" = "-u" ]; then
+ if [ -f "$TOSCFG" ]; then
+ uninstallshrc
+ updclasspath "$TOSROOT" ""
+ unset TOSROOT TOSDIR MAKERULES
+ rm -f "$TOSCFG"
+ echo "tinyos: environment uninstalled for $(whoami)"
+ else
+ echo "tinyos: environment not installed for $(whoami)"
+ fi
else
- echo "Setting up for TinyOS source in $TOSROOT"
- echo "$TOSROOT" > ~/.tosrc
- TOSDIR="$TOSROOT/tos"
- CLASSPATH=$CLASSPATH:$TOSROOT/support/sdk/java
- MAKERULES="$TOSROOT/support/make/Makerules"
- export TOSROOT TOSDIR CLASSPATH MAKERULES
+ # Get TOSROOT, either from command line or cached in $TOSCFG
+ if [ -n "$1" ]; then
+ newroot=$(gettosroot "$1")
+ if [ -n "$newroot" ]; then
+ echo "$newroot" > "$TOSCFG"
+ installshrc
+ echo "tinyos: now using $newroot"
+ else
+ echo "tinyos: invalid version; try -h option"
+ fi
+ else
+ newroot=$(cat "$TOSCFG" 2>/dev/null)
+ if [ -z "$newroot" ]; then
+ echo "tinyos: NOT configured; try -h option"
+ fi
+ fi
+
+ # Set TOS environment
+ if [ -n "$newroot" ]; then
+ updclasspath "$TOSROOT" "$newroot"
+ TOSROOT="$newroot"
+ TOSDIR="$TOSROOT/tos"
+ MAKERULES="$TOSROOT/support/make/Makerules"
+ fi
fi
-unset TOSBASE tmp
+export TOSROOT TOSDIR MAKERULES
+unset TOSBASE RCFILES
+
+# vi: sw=4
projects / tinyos-2.x.git / blobdiff