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#! /bin/sh
#
# Running examples:
#
# $ ./for-group configure
# $ ./for-group make [-jN]
#
# This is a wrapper for the configure and Make steps designed for a group
# of users (sharing the same group name) using this pipeline on the same
# build directory.
#
# When the configuration (normally done with `./configure') and build
# (normally done with `.local/bin/make') steps are done with this script,
# all the files that are created within the pipeline have these properties:
#
# 1) Group owner will be a special group (value of `thisgroup' below).
# 2) The permission flags give write access to the group members.
#
# Original author:
# Mohammad Akhlaghi <mohammad@akhlaghi.org>
# Contributing author(s):
# Your name <your@email.address>
# Copyright (C) 2019, Mohammad Akhlaghi.
#
# This script 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 3 of the License, or
# (at your option) any later version.
#
# This script 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.
#
# A copy of the GNU General Public License is available at
# <http://www.gnu.org/licenses/>.
# Desired group
thisgroup=ourgroup
# Script settings
# ---------------
# Stop the script if there are any errors.
set -e
# Set and run the respective command.
if [ "x$1" = x ]; then
echo "$0: an argument is necessary ('configure' or 'make')"
exit 1
elif [ "x$1" = xconfigure ]; then script="./configure"
elif [ "x$1" = xmake ]; then script=".local/bin/make $2"
else
echo "$0: argument must be 'configure' or 'make'"
exit 1
fi
echo; echo $script; echo
sg $thisgroup "umask g+w && $script"
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