Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 78 insertions, 0 deletions

diff --git a/REORG.TODO/scripts/rellns-sh b/REORG.TODO/scripts/rellns-sh
new file mode 100755
index 0000000000..a5779c70bb
--- /dev/null
+++ b/REORG.TODO/scripts/rellns-sh
@@ -0,0 +1,78 @@
+#!/bin/sh
+# rellns-sh - Simplified ln program to generate relative symbolic link.
+# Copyright (C) 1996-2017 Free Software Foundation, Inc.
+# Written by Ulrich Drepper <drepper@cygnus.com>, October 1996
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+
+# With -p, instead of creating the link print the computed relative link
+# name.
+do_print=false
+case $1 in
+  -p)
+    do_print=true
+    shift
+    ;;
+esac
+if test $# -ne 2; then
+  echo "Usage: rellns [-p] SOURCE DEST" >&2
+  exit 1
+fi
+
+# Make both paths absolute.
+if test -d $1; then
+  to=`cd $1 && pwd -P`
+else
+  temp=`echo $1 | sed 's%/*[^/]*$%%'`
+  if test -z "$temp"; then
+    to=`pwd -P`
+  else
+    to=`cd $temp && pwd -P`
+  fi
+  to="$to/`echo $1 | sed 's%.*/\([^/][^/]*\)$%\1%'`"
+fi
+to=`echo $to | sed 's%^/%%'`
+
+if test -d $2; then
+  from=`echo $2 | sed 's%/*$%%'`
+else
+  from=`echo $2 | sed 's%/*[^/]*$%%'`
+fi
+
+if test -z "$from"; then
+  from=`pwd -P | sed 's%^/%%'`
+else
+  from=`cd $from && pwd -P | sed 's%^/%%'`
+fi
+
+while test -n "$to" && test -n "$from"; do
+  preto=`echo $to | sed 's%^\([^/]*\)/.*%\1%'`
+  prefrom=`echo $from | sed 's%^\([^/]*\)/.*%\1%'`
+
+  test "$preto" != "$prefrom" && break
+
+  to=`echo $to | sed 's%^[^/]*/*\(.*\)$%\1%'`
+  from=`echo $from | sed 's%^[^/]*/*\(.*\)$%\1%'`
+done
+
+while test -n "$from"; do
+  rfrom="../$rfrom"
+  from=`echo $from | sed 's%^[^/]*/*%%'`
+done
+
+if $do_print; then
+  echo "$rfrom$to"
+else
+  ln -s $rfrom$to $2
+fi