[PATCH] Use the original install-sh file from SGI

["Theodore Ts'o" <tytso@mit.edu>]

The install-sh file is much more efficient than the libtool version
(50% faster wall clock time; much more than that when running in a
qemu emulation build environment).  There doesn't seem to be any real
need for the libtool version, so bring back the original install-sh
script.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---

A very large amount of time when running "make install" in a build
chroot using qemu emulation, such as constructed by running "sudo
setup-buildchroot --arch-armhf" using the script found here[1] is in
running the install-sh provided by libtool, which is amazing bloated
and forks a crazy number of processes to do something very simple.

As near as I can tell there is zero benefit in using the install-sh
provided by libtool, so restore the version that SGI originally used.

[1] https://github.com/tytso/xfstests-bld/blob/master/setup-buildchroot


 .gitignore |   1 -
 install-sh | 351 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 351 insertions(+), 1 deletion(-)
 create mode 100755 install-sh

diff --git a/.gitignore b/.gitignore
index 192ca35e..dfd3da7d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,7 +24,6 @@
 
 # libtool
 /libtool
-/install-sh
 /ltmain.sh
 
 # build system
diff --git a/install-sh b/install-sh
new file mode 100755
index 00000000..9fa706d9
--- /dev/null
+++ b/install-sh
@@ -0,0 +1,351 @@
+#! /bin/bash
+#
+# Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
+#
+# This script emulates bsd install and also recognises
+# two environment variables, with the following semantics :-
+#
+# $DIST_MANIFEST - if set, the name of the file to append manifest
+#                  information in the following format:
+#                  File     :  f mode owner group src target
+#                  Directory:  d mode owner group target
+#                  Symlink  :  l linkval target
+#
+# $DIST_ROOT     - if set, prepend to target
+#
+# The sematics of all combinations of these two variables
+# are as follows:
+#
+# $DIST_MANIFEST?  $DIST_ROOT? |   Copy?  Append Manifest?
+# -----------------------------+--------------------------
+#       not set       not set  |    yes        no
+#       not set       set      |    yes        no
+#       set           not set  |    no         yes
+#       set           set      |    yes        yes
+#
+_usage() {
+    echo "Usage: $prog [-o owner] [-g group] [-m mode] -d directory"
+    echo "or     $prog [-D] [-o owner] [-g group] [-m mode] file directory/file"
+    echo "or     $prog [-o owner] [-g group] [-m mode] file [file ...] directory"
+    echo "or     $prog -S file target  (creates \"target\" symlink)"
+    echo "or     $prog -T lt_arg [-o owner] [-g group] [-m mode] libtool.lai directory"
+    echo ""
+    echo "The \$DIST_MANIFEST and \$DIST_ROOT environment variables affect the"
+    echo "behaviour of this command - see comments in the script."
+    echo "The -D flag is only available for the second usage, and causes"
+    echo "the target directory to be created before installing the file."
+    echo ""
+    exit 1
+}
+
+_chown ()
+{
+    _st=255
+    if [ $# -eq 3 ] ; then
+	chown $1:$2 $3
+	_st=$?
+	if [ $_st -ne 0 ] ; then
+	    if [ $REAL_UID != '0' ] ; then
+		if [ ! -f $DIST_ROOT/.chown.quiet ] ; then
+		    echo '==============================================='
+		    echo Ownership of files under ${DIST_ROOT:-/}
+		    echo cannot be changed
+		    echo '==============================================='
+		    if [ -n "$DIST_ROOT" ] ; then
+			touch $DIST_ROOT/.chown.quiet
+		    fi
+		fi
+	       _st=0
+	    fi
+	fi
+    fi
+
+    return $_st
+}
+
+
+_manifest ()
+{
+    echo $* | sed -e 's/\/\//\//g' >>${DIST_MANIFEST:-/dev/null}
+}
+
+prog=`basename $0`
+HERE=`pwd`
+dflag=false
+Dflag=false
+Sflag=false
+Tflag=false
+DIRMODE=755
+FILEMODE=644
+OWNER=`id -u`
+GROUP=`id -g`
+REAL_UID=$OWNER
+
+# default is to install and don't append manifest
+INSTALL=true
+MANIFEST=:
+
+: ${DIST_ROOT:=${DESTDIR}}
+
+[ -n "$DIST_MANIFEST" -a -z "$DIST_ROOT" ] && INSTALL=false
+[ -n "$DIST_MANIFEST" ] && MANIFEST="_manifest"
+
+[ $# -eq 0 ] && _usage
+
+if $INSTALL
+then
+    CP=cp; LN=ln; MKDIR=mkdir; CHMOD=chmod; CHOWN=_chown
+else
+    CP=true; LN=true; MKDIR=true; CHMOD=true; CHOWN=true
+fi
+
+[ -n "$DIST_ROOT" -a $REAL_UID -ne 0 ] && CHOWN=true
+
+while getopts "Dcm:d:S:o:g:T:" c $*
+do
+   case $c in
+   c)
+	;;
+   g)
+	GROUP=$OPTARG
+	;;
+   o)
+	OWNER=$OPTARG
+	;;
+   m)
+	DIRMODE=`expr $OPTARG`
+	FILEMODE=$DIRMODE
+	;;
+   D)
+	Dflag=true
+	;;
+   S)
+	symlink=$OPTARG
+	Sflag=true
+	;;
+   d)
+	dir=$DIST_ROOT/$OPTARG
+	dflag=true
+	;;
+   T)
+	lt_install=$OPTARG
+	Tflag=true
+	;;
+   *)
+   	_usage
+	;;
+   esac
+done
+
+shift `expr $OPTIND - 1`
+
+status=0
+if $dflag
+then
+    #
+    # first usage
+    #
+    $MKDIR -p $dir
+    status=$?
+    if [ $status -eq 0 ]
+    then
+	$CHMOD $DIRMODE $dir
+	status=$?
+    fi
+    if [ $status -eq 0 ]
+    then
+	$CHOWN $OWNER $GROUP $dir
+	status=$?
+    fi
+    $MANIFEST d $DIRMODE $OWNER $GROUP ${dir#$DIST_ROOT}
+elif $Sflag
+then
+    #
+    # fourth usage (symlink)
+    #
+    if [ $# -ne 1 ]
+    then
+    	_usage
+    else
+    	target=$DIST_ROOT/$1
+    fi
+    $LN -s -f $symlink $target
+    status=$?
+    $MANIFEST l $symlink ${target#$DIST_ROOT}
+elif $Tflag
+then
+    #
+    # -T (install libs built by libtool)
+    #
+    if [ $# -ne 2 ]
+    then
+	_usage
+    else
+	libtool_lai=$1
+	# source the libtool variables
+	if [ ! -f $libtool_lai ]
+	then
+		echo "$prog: Unable to find libtool library file $libtool_lai"
+		exit 2
+	fi
+	. ./$libtool_lai
+	target=$DIST_ROOT/$2
+    fi
+    case $lt_install in
+    so_dot_version)
+	# Loop until we find libfoo.so.x.y.z, then break out.
+	for solib in $library_names
+	do
+		# does it have enough parts?  libfoo.so.x.y.z == 5
+		cnt=`echo "$solib" | sed -e 's/\./ /g' | wc -w`
+		if [ $cnt -eq 5 ]
+		then
+			install_name=$target/$solib
+			$CP $solib $install_name
+			status=$?
+			$MANIFEST f $FILEMODE $OWNER $GROUP $HERE/$solib ${install_name#$DIST_ROOT}
+			break
+		fi
+	done
+	;;
+
+    so_*)
+	case $lt_install in
+	so_dot_current)
+		# ln -s libfoo.so.x.y.z to libfoo.so.x
+		from_parts=5  # libfoo.so.x.y.z
+		to_parts=3    # libfoo.so.x
+		;;
+	so_base)
+		# ln -s libfoo.so.x to libfoo.so
+		from_parts=3  # libfoo.so.x
+		to_parts=2    # libfoo.so
+		;;
+	*)
+		echo "$prog: -T $lt_install invalid"
+		exit 2
+		;;
+	esac
+
+	# Loop until we find the names, then break out.
+	for solib in $library_names
+	do
+		# does it have enough parts?
+		cnt=`echo "$solib" | sed -e 's/\./ /g' | wc -w`
+		if [ $cnt -eq $from_parts ]
+		then
+			from_name=$solib
+		elif [ $cnt -eq $to_parts ]
+		then
+			to_name=$solib
+		fi
+
+		if [ -n "$from_name" ] && [ -n "$to_name" ]
+		then
+			install_name=$target/$to_name
+			$LN -s -f $from_name $install_name
+			status=$?
+			$MANIFEST l $from_name ${install_name#$DIST_ROOT}
+			break
+		fi
+	done
+	;;
+    old_lib)
+	install_name=$target/$old_library
+	$CP $old_library $install_name
+	status=$?
+	$MANIFEST f $FILEMODE $OWNER $GROUP $HERE/$old_library ${install_name#$DIST_ROOT}
+	;;
+    *)
+	echo "$prog: -T $lt_install invalid"
+	exit 2
+	;;
+    esac
+
+    case $lt_install in
+    old_lib|so_dot_version)
+	if [ $status -eq 0 ]
+	then
+		$CHMOD $FILEMODE $install_name
+		$CHOWN $OWNER $GROUP $install_name
+	fi
+	;;
+    esac
+
+else
+    list=""
+    dir=""
+    if [ $# -eq 2 ]
+    then
+	#
+	# second usage
+	#
+	f=$1
+	dir=$DIST_ROOT/$2
+	if $Dflag
+	then
+	    mkdir -p `dirname $dir`
+	fi
+	$CP $f $dir
+	status=$?
+	if [ $status -eq 0 ]
+	then
+	    if [ -f $dir/$f ]
+	    then
+		$CHMOD $FILEMODE $dir/$f
+		status=$?
+		if [ $status -eq 0 ]
+		then
+		    $CHOWN $OWNER $GROUP $dir/$f
+		    status=$?
+		fi
+		$MANIFEST f $FILEMODE $OWNER $GROUP $HERE/$f ${dir#$DIST_ROOT}/$f
+	    else
+		$CHMOD $FILEMODE $dir
+		status=$?
+		if [ $status -eq 0 ]
+		then
+		    $CHOWN $OWNER $GROUP $dir
+		    status=$?
+		fi
+		$MANIFEST f $FILEMODE $OWNER $GROUP $HERE/$dir ${dir#$DIST_ROOT}
+	    fi
+	fi
+    else
+	#
+	# third usage
+	#
+	n=1
+	while [ $# -gt 0 ]
+	do
+	    if [ $# -gt 1 ]
+	    then
+		list="$list $1"
+	    else
+		dir=$DIST_ROOT/$1
+	    fi
+	    shift
+	done
+
+	# echo DIR=$dir list=\"$list\"
+	for f in $list
+	do
+	    $CP $f $dir
+	    status=$?
+	    if [ $status -eq 0 ]
+	    then
+		$CHMOD $FILEMODE $dir/$f
+		status=$?
+		if [ $status -eq 0 ]
+		then
+		    $CHOWN $OWNER $GROUP $dir/$f
+		    status=$?
+		fi
+		$MANIFEST f $FILEMODE $OWNER $GROUP $HERE/$f ${dir#$DIST_ROOT}/$f
+	    fi
+	    [ $status -ne 0 ] && break
+	done
+    fi
+fi
+
+exit $status
-- 
2.16.1.72.g5be1f00a9a