ia64/xen-unstable

view linux-2.6-xen-sparse/mkbuildtree @ 6946:e703abaf6e3d

Add behaviour to the remove methods to remove the transaction's path itself. This allows us to write Remove(path) to remove the specified path rather than having to slice the path ourselves.
author emellor@ewan
date Sun Sep 18 14:42:13 2005 +0100 (2005-09-18)
parents 3233e7ecfa9f
children ee8226e15e9f 659ad553199e
line source
1 #!/bin/bash
3 # mkbuildtree <build tree>
4 #
5 # Creates symbolic links in <build tree> for the sparse tree
6 # in the current directory.
8 # Script to determine the relative path between two directories.
9 # Copyright (c) D. J. Hawkey Jr. 2002
10 # Fixed for Xen project by K. Fraser in 2003.
11 abs_to_rel ()
12 {
13 local CWD SRCPATH
15 if [ "$1" != "/" -a "${1##*[^/]}" = "/" ]; then
16 SRCPATH=${1%?}
17 else
18 SRCPATH=$1
19 fi
20 if [ "$2" != "/" -a "${2##*[^/]}" = "/" ]; then
21 DESTPATH=${2%?}
22 else
23 DESTPATH=$2
24 fi
26 CWD=$PWD
27 [ "${1%%[^/]*}" != "/" ] && cd $1 && SRCPATH=$PWD
28 [ "${2%%[^/]*}" != "/" ] && cd $2 && DESTPATH=$PWD
29 [ "$CWD" != "$PWD" ] && cd $CWD
31 BASEPATH=$SRCPATH
33 [ "$SRCPATH" = "$DESTPATH" ] && DESTPATH="." && return
34 [ "$SRCPATH" = "/" ] && DESTPATH=${DESTPATH#?} && return
36 while [ "$BASEPATH/" != "${DESTPATH%${DESTPATH#$BASEPATH/}}" ]; do
37 BASEPATH=${BASEPATH%/*}
38 done
40 SRCPATH=${SRCPATH#$BASEPATH}
41 DESTPATH=${DESTPATH#$BASEPATH}
42 DESTPATH=${DESTPATH#?}
43 while [ -n "$SRCPATH" ]; do
44 SRCPATH=${SRCPATH%/*}
45 DESTPATH="../$DESTPATH"
46 done
48 [ -z "$BASEPATH" ] && BASEPATH="/"
49 [ "${DESTPATH##*[^/]}" = "/" ] && DESTPATH=${DESTPATH%?}
50 }
52 # relative_lndir <target_dir>
53 # Creates a tree of symlinks in the current working directory that mirror
54 # real files in <target_dir>. <target_dir> should be relative to the current
55 # working directory. Symlinks in <target_dir> are ignored. Source-control files
56 # are ignored.
57 relative_lndir ()
58 {
59 local SYMLINK_DIR REAL_DIR pref i j
60 SYMLINK_DIR=$PWD
61 REAL_DIR=$1
62 (
63 cd $REAL_DIR
64 for i in `find . -type d | grep -v SCCS`; do
65 [ -d $SYMLINK_DIR/$i ] || mkdir -p $SYMLINK_DIR/$i
66 (
67 cd $i
68 pref=`echo $i | sed -e 's#/[^/]*#../#g' -e 's#^\.##'`
69 for j in `find . -maxdepth 1 -type f -o -type l`; do
70 ln -sf ${pref}${REAL_DIR}/$i/$j ${SYMLINK_DIR}/$i/$j
71 done
72 )
73 done
74 )
75 }
77 [ "$1" == "" ] && { echo "Syntax: $0 <linux tree to xenify>"; exit 1; }
79 # Get absolute path to the destination directory
80 pushd . >/dev/null
81 cd ${1} || { echo "cannot cd to ${1}"; exit 1; }
82 AD=$PWD
83 popd >/dev/null
85 # Get absolute path to the source directory
86 AS=`pwd`
88 # Get path to source, relative to destination
89 abs_to_rel ${AD} ${AS}
90 RS=$DESTPATH
92 # Remove old copies of files and directories at the destination
93 for i in `find . -type f -o -type l` ; do rm -f ${AD}/${i#./} ; done
95 # We now work from the destination directory
96 cd ${AD} || { echo "cannot cd to ${AD}"; exit 1; }
98 # Remove old symlinks
99 for i in `find . -type l`; do rm -f $i; done
101 # Create symlinks of files and directories which exist in the sparse source
102 relative_lndir ${RS}
103 rm -f mkbuildtree
105 # Create links to the shared definitions of the Xen interfaces.
106 rm -rf ${AD}/include/asm-xen/xen-public
107 mkdir ${AD}/include/asm-xen/xen-public
108 cd ${AD}/include/asm-xen/xen-public
109 relative_lndir ../../../${RS}/../xen/include/public
111 cd ${AD}/include/asm-xen/linux-public
112 ln -sf ../../../${RS}/../tools/xenstore/xenstored.h