pkgsrc/textproc/nbsed/files/install-sh

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:
# NAME:
# install.sh - portable version of install(1)
#
# SYNOPSIS:
# install [-CNcs] [-f flags] [-i errs] [-o owner] [-g group] [-m mode] file1 file2 ...
# install -d [-i errs] [-o owner] [-g group] [-m mode] directory ...
#
# DESCRIPTION:
# Compatible with BSD install(1). Except that '-c' is always
# true and we always move an already installed target aside as
# this is important on many systems. Recent BSD install(1)
# versions have a '-b' option for this.
#
#
# OPTIONS:
# -b move previous target file aside (always true).
#
# -B "suffix"
# use "suffix" instead of .old for saving existing target.
#
# -c copy rather than move the file into place (always true).
#
# -C compare. Only install if target is missing or
# different.
#
# -N newer. Only install if target is missing or older.
#
# -s strip target
#
# -o "owner"
# make target owned by "owner"
#
# -g "group"
# make target group owned by "group"
#
# -m "mode"
# set permissions to "mode"
#
# -f "flags"
# Pass "flags" onto chflags(1)
#
# -i "errs"
# Ignore errors from steps indicated by "errs" (``s,o,g,m'').
#
# BUGS:
# The '-i' option is to save your sanity when 'bsd.prog.mk'
# insists on haveing a '-o' "owner" option which is doomed to
# fail on many systems. We ignore '-b', '-B' and '-c' options.
#
# AUTHOR:
# Simon J. Gerraty <sjg@quick.com.au>
#
# RCSid:
# $Id: install-sh,v 1.1.1.1 2003/08/18 17:34:59 agc Exp $
#
# @(#) Copyright (c) 1993 Simon J. Gerraty
#
# This file is provided in the hope that it will
# be of use. There is absolutely NO WARRANTY.
# Permission to copy, redistribute or otherwise
# use this file is hereby granted provided that
# the above copyright notice and this notice are
# left intact.
#
# Please send copies of changes and bug-fixes to:
# sjg@quick.com.au
#
set -- `getopt B:bpxCNcsdo:g:m:i:f: $*`
Mydir=`dirname $0`
[ -s $Mydir/.installrc ] && . $Mydir/.installrc
owner=:
group=:
mode=:
strip=:
mkdirs=
compare=:
newer=:
chflags=:
LS1=
CP_P=
while [ $# -gt 1 ]
do
case $1 in
--) shift; break;;
-p) CP_P=-p;;
-x) set -x;;
-B) OLD_EXT=$2; shift;;
-C) compare=Different;;
-N) newer=Newer;
# check if /bin/ls supports -1
/bin/ls -1 $0 >/dev/null 2>&1 && LS1=1
;;
-o) owner="${CHOWN:-chown} $2 "; shift;;
-g) group="${CHGRP:-chgrp} $2 "; shift;;
-m) mode="${CHMOD:-chmod} $2 "; shift;;
-s) strip=${STRIP:-strip};;
-d) mkdirs="mkdir -p";;
-i) ignore_err="$ignore_err$2"; shift;;
-f) chflags="${CHFLAGS:-chflags} $2 "; shift;;
esac
shift
done
Newer() {
n=`/bin/ls -t$LS1 $* 2>/dev/null | head -1`
[ $1 = $n ]
}
Different() {
cmp -s $*
[ $? != 0 ]
}
Err() {
case "$ignore_err" in
*$1*) ;;
*) exit 1;;
esac
}
Setem() {
# the order is important
if [ ! -d $1 ]; then
$strip $1 || Err s
fi
$group $1 || Err g
$owner $1 || Err o
$mode $1 || Err m
$chflags $1 || Err f
return 0
}
# a bug in HP-UX's /bin/sh, means we need to re-set $*
# after any calls to add_path()
args="$*"
# all this just for chown!
add_path () { [ -d $1 ] && eval ${2:-PATH}="\$${2:-PATH}:$1"; }
add_path /etc
add_path /usr/etc
add_path /sbin
add_path /usr/sbin
# restore saved $*
set -- $args
# make directories if needed
# and ensure mode etc are as desired
if [ "$mkdirs" ]; then
for d in $*
do
[ ! -d $d ] && $mkdirs $d
Setem $d
done
exit 0 # that's all we do
fi
# install files
if [ $# -gt 2 ]; then
dest_dir=yes
elif [ $# -eq 1 ]; then
echo "what should I do with $*?" >&2
exit 1
fi
# get list of files
while [ $# -gt 1 ]
do
files="$files $1"
shift
done
# last one is dest
dest=$1
shift
if [ "$dest_dir" = yes -a ! -d $dest ]; then
echo "no directory $dest" >&2
exit 1
fi
for f in $files
do
b=`basename $f`
if [ -d $dest ]; then
t=$dest/$b
else
t=$dest
fi
$newer $f $t || continue
$compare $f $t || continue
[ -f $t ] && { mv -f $t $t.old || exit 1; }
{ cp $CP_P $f $t && Setem $t; } || exit 1
done
exit 0