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freebsd-ports/java/javavmwrapper/pkg-deinstall
Greg Lewis 280df4e4ce . Usher in javavmwrapper 2.0, a rewrite of the wrapper scripts designed to
allow the simple use of multiple VMs.  Brief detail of the main changes:
  . When a VM is registered, symbolic links for its executables are
    created in ${LOCALBASE}/bin.  This allows people to just type
    'java', 'javac', etc. without having to add the VM installation
    directory to their PATH.
  . The actual 'java' that is executed via one of these symlinks is
    determined by the order of the (sorted) configuration file
    ${LOCALBASE}/etc/javavms and by the environment variables
    JAVA_VERSION, JAVA_OS and JAVA_VENDOR which function to select
    a VM as they do in the ports framework.
. There is a new command, checkvms, to sanity check the configuration
  and symlinks.
. The "javavm" executable is currently retained in its original capacity
  as a synonym for Java for backward compatibility.  However, its use
  is deprecated.
. Temporarily set MAINTAINER to myself to make monitoring any initial
  bug reports easier.  The intent is to convert it to java@ at a later
  date.

This is built on the ideas of znerd, hq and Shelton C. Johnson Jr., with
hq and Shelton contributing code and reviews.

PR:		27079, 39080
Reviewed by:	hq, Shelton C. Johnson Jr. <shelton_c_j@yahoo.com>
2004-11-11 19:17:37 +00:00

46 lines
1.1 KiB
Bash

#!/bin/sh
#
# $FreeBSD$
export PATH=/bin:/sbin:/usr/bin:/usr/sbin
# Run this script at the pre-deinstall stage
if [ "x${2}" != "xDEINSTALL" ]; then
exit 0
fi
# The configuration file
CONF="${PKG_PREFIX}/etc/javavms"
# Ensure the configuration file exists
if [ ! -f "${CONF}" ]; then
exit 0
fi
# Ensure the configuration file has the correct permissions
if [ ! -r "${CONF}" ]; then
echo "error: can't read configuration file ${CONF}" 1>&2
exit 1
fi
# Destroy the symbolic links that were created for every executable for a VM.
cat "${CONF}" | \
(
while read JAVAVM; do
VM=`echo "${JAVAVM}" | sed -E 's|[[:space:]]*#.*||' 2>/dev/null`
JAVA_HOME=`dirname "${VM}"`
JAVA_HOME=`dirname "${JAVA_HOME}"`
for exe in "${JAVA_HOME}"/bin/* "${JAVA_HOME}"/jre/bin/*; do
exe=`basename "${exe}"`
if [ -L "${PKG_PREFIX}/bin/${exe}" -a \
"`ls -ld "${PKG_PREFIX}/bin/${exe}" 2>/dev/null | \
awk '/->/{print $NF;exit 0}END{exit 1}'`" = \
"${PKG_PREFIX}/bin/javavm" ]; then
rm "${PKG_PREFIX}/bin/${exe}"
fi
done;
done;
)
exit 0