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#set -x
# This script creates the backout package for a patch package
#
# directory format options.
#
# @(#) postinstall 1.10 99/04/23 SMI
#
# Copyright (c) 1995 by Sun Microsystems, Inc.
# All rights reserved
#

# Description:
#       Set the TYPE parameter for the remote file
#
# Parameters:
#       none
#
# Globals set:
#       TYPE

set_TYPE_parameter () {
        if [ ${PATCH_UNDO_ARCHIVE:?????} = "/dev" ]; then
                # handle device specific stuff
                TYPE="removable"
        else
                TYPE="filesystem"
        fi
}

#
# Description:
#       Build the remote file that points to the backout data
#
# Parameters:
#       $1:     the un/compressed undo archive
#
# Globals set:
#       UNDO, STATE

build_remote_file () {
        remote_path=$PKGSAV/$SUNW_PATCHID/remote
        set_TYPE_parameter
        STATE="active"

        if [ $1 = "undo" ]; then
                UNDO="undo"
        else
                UNDO="undo.Z"
        fi

        cat > $remote_path << EOF
# Backout data stored remotely
TYPE=$TYPE
FIND_AT=$ARCHIVE_DIR/$UNDO
STATE=$STATE
EOF
}

PATH=/usr/sadm/bin:$PATH

if [ "$PKG_INSTALL_ROOT" = "/" ]; then
        PKG_INSTALL_ROOT=""
fi

if [ -n "$PATCH_BUILD_DIR" -a -d "$PATCH_BUILD_DIR" ]; then
        BUILD_DIR="$PATCH_BUILD_DIR/$SUNW_PATCHID.$PKGINST"
else
        BUILD_DIR="$PKG_INSTALL_ROOT/var/tmp/$SUNW_PATCHID.$PKGINST"
fi

if [ ! -n "$PATCH_UNDO_ARCHIVE" ]; then
        PATCH_UNDO_ARCHIVE="none"
fi

FILE_DIR=$BUILD_DIR/files
RELOC_DIR=$FILE_DIR/reloc
ROOT_DIR=$FILE_DIR/root
BO_Deletes=$FILE_DIR/deletes
THIS_DIR=`dirname $0`
PROTO_FILE=$BUILD_DIR/prototype
TEMP_REMOTE=$PKGSAV/$SUNW_PATCHID/temp

if [ "$PATCH_PROGRESSIVE" = "true" ]; then
        # remove the scripts that are left behind
        install_scripts=`dirname $0`
        rm $install_scripts/checkinstall $install_scripts/patch_checkinstall $install_scripts/patch_postinstall

        # If this is being used in an old-style patch, insert
        # the old-style script commands here.

        #XXXOld_CommandsXXX#

        exit 0
fi

#
# At this point we either have a deletes file or we don't. If we do,
# we create a prototype entry.
#
if [ -f $BO_Deletes ]; then
        echo "i deletes=$BO_Deletes" >> $BUILD_DIR/prototype
fi

#
# Now delete everything in the deletes list after transferring
# the file to the backout package and the entry to the prototype
# file. Remember that the pkgmap will get the CLIENT_BASEDIR path
# but we have to actually get at it using the BASEDIR path. Also
# remember that removef will import our PKG_INSTALL_ROOT
#
Our_Deletes=$THIS_DIR/deletes
if [ -f $Our_Deletes ]; then
        cd $BASEDIR

        cat $Our_Deletes | while read path; do
                Reg_File=0

                if valpath -l $path; then
                        Client_Path="$CLIENT_BASEDIR/$path"
                        Build_Path="$RELOC_DIR/$path"
                        Proto_Path=$BASEDIR/$path
                else    # It's an absolute path
                        Client_Path=$path
                        Build_Path="$ROOT_DIR$path"
                        Proto_Path=$PKG_INSTALL_ROOT$path
                fi

                # If BASEDIR/CLIENTBASEDIR = "/", then the previous prepends
                # an extra / i.e. //. The sed command later can't find a
                # Proto_Path with // and therefore will not substitute the
                # correct build_Path resulting in the backout pkg not being
                # created.

                if [ "$CLIENT_BASEDIR" = "/" ]; then
                        Client_Path=`echo $Client_Path | sed 's|^\/\/|\/|'`
                        Proto_Path=`echo $Proto_Path | sed 's|^\/\/|\/|'`
                fi
                        
                # Note: If the file isn't really there, pkgproto
                # doesn't write anything.
                LINE=`pkgproto $Proto_Path=$path`
                ftype=`echo $LINE | nawk '{ print $1 }'`
                if [ "$ftype" = "f" ]; then
                        Reg_File=1
                fi

                if [ $Reg_File = 1 ]; then
                        # Add source file to the prototype entry
                        if [ "$Proto_Path" = "$path" ]; then
                                LINE=`echo $LINE | sed -e "s|$Proto_Path|$Build_Path|2"`
                        else
                                LINE=`echo $LINE | sed -e "s|$Proto_Path|$Build_Path|"`
                        fi

                        DirName=`dirname $Build_Path`
                        # make room in the build tree
                        mkdir -p $DirName
                        cp -p $Proto_Path $Build_Path
                fi

                # Insert it into the prototype file
                echo $LINE 1>>$PROTO_FILE 2>/dev/null

                # Remove the file only if it's OK'd by removef
                rm `removef $PKGINST $Client_Path` 1>/dev/null 2>&1
        done
        removef -f $PKGINST

        rm $Our_Deletes
fi

#
# Unless specifically denied, make the backout package.
#
if [ "$PATCH_NO_UNDO" != "true" ]; then
        cd $BUILD_DIR   # We have to build from here.

        if [ "$PATCH_UNDO_ARCHIVE" != "none" ]; then
                STAGE_DIR="$PATCH_UNDO_ARCHIVE"
                ARCHIVE_DIR="$PATCH_UNDO_ARCHIVE/$SUNW_PATCHID/$PKGINST"
                mkdir -p $ARCHIVE_DIR
                mkdir -p $PKGSAV/$SUNW_PATCHID
        else
                if [ -d $PKGSAV/$SUNW_PATCHID ]; then
                        rm -r $PKGSAV/$SUNW_PATCHID
                fi
                STAGE_DIR=$PKGSAV
                ARCHIVE_DIR=$PKGSAV/$SUNW_PATCHID
                mkdir $ARCHIVE_DIR
        fi

        pkgmk -o -d $STAGE_DIR 1>/dev/null 2>&1
        pkgtrans -s $STAGE_DIR $ARCHIVE_DIR/undo $PKG 1>/dev/null 2>&1
        compress $ARCHIVE_DIR/undo
        retcode=$?
        if [ "$PATCH_UNDO_ARCHIVE" != "none" ]; then
                if [ $retcode != 0 ]; then
                        build_remote_file "undo"
                else
                        build_remote_file "undo.Z"
                fi
        fi
        rm -r $STAGE_DIR/$PKG

        cd ..
        rm -r $BUILD_DIR
        # remove the scripts that are left behind
        install_scripts=`dirname $0`
        rm $install_scripts/checkinstall $install_scripts/patch_checkinstall $install_scripts/patch_postinstall
fi

#
# Since this apparently worked, we'll mark as obsoleted the prior
# versions of this patch - installpatch deals with explicit obsoletions.
#
cd ${PKG_INSTALL_ROOT:-/}
cd var/sadm/pkg

active_base=`echo $SUNW_PATCHID | nawk '
        { print substr($0, 1, match($0, "-")-1) } '`

List=`ls -d $PKGINST/save/${active_base}* 2>/dev/null`
if [ $? -ne 0 ]; then
        List=""
fi

for savedir in $List; do
        patch=`basename $savedir` 
        if [ $patch = $SUNW_PATCHID ]; then
                break
        fi

        # If we get here then the previous patch gets deleted
        if [ -f $savedir/undo ]; then
                mv $savedir/undo $savedir/obsolete
                echo $SUNW_PATCHID >> $savedir/obsoleted_by
        elif [ -f $savedir/undo.Z ]; then
                mv $savedir/undo.Z $savedir/obsolete.Z
                echo $SUNW_PATCHID >> $savedir/obsoleted_by
        elif  [ -f $savedir/remote ]; then
                `grep . $PKGSAV/$patch/remote | sed 's|STATE=.*|STATE=obsolete|' > $TEMP_REMOTE` 
                rm -f $PKGSAV/$patch/remote 
                mv $TEMP_REMOTE $PKGSAV/$patch/remote  
                rm -f $TEMP_REMOTE 
                echo $SUNW_PATCHID >> $savedir/obsoleted_by
        elif  [ -f $savedir/obsolete -o -f $savedir/obsolete.Z ]; then
                echo $SUNW_PATCHID >> $savedir/obsoleted_by
        fi
done

# If additional operations are required for this package, place
# those package-specific commands here.

#XXXSpecial_CommandsXXX#

exit 0