parallel/10seconds_install

172 lines
5.3 KiB
Bash

#!/bin/bash
true <<'EOF'
<p>
This script downloads the latest version of GNU Parallel, checks
the signature and installs it.
<p> It first tries to install it globally.
<br> If that fails, it does a personal installation.
<br> If that fails, it copies to $HOME/bin
<p> You can download and run the script directly by:
<p> $ (wget -O - pi.dk/3 || lynx -source pi.dk/3 ||
curl pi.dk/3/ || fetch -o - http://pi.dk/3) > install.sh
<br> $ sha1sum install.sh | grep 12345678
<br> $ md5sum install.sh
<br> $ sha512sum install.sh
<p> Check the sums from https://gnu.org/s/parallel/checksums
<br> Then run:
<p> $ bash install.sh
<br><br><br><br>
EOF
# SPDX-FileCopyrightText: 2013-2022 Ole Tange, http://ole.tange.dk and Free Software and Foundation, Inc.
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
# 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 3 of
# the License, or (at your option) any later version.
run() {
# FreeBSD prefers 'fetch', MacOS prefers 'curl', Linux prefers 'wget'
get=$(
(lynx -source /dev/null && echo lynx -source) ||
(fetch -o /dev/null file:///bin/sh && echo fetch -o -) ||
(curl -h >/dev/null && echo curl -L) ||
(wget -h >/dev/null && echo wget -qO -) ||
echo 'No lynx, wget, curl, fetch: Please inform parallel@gnu.org what you use for downloading URLs' >&2
)
if test "$get" = ""; then
exit 1
fi
if ! perl -e 1; then
echo No perl installed. GNU Parallel depends on perl. Install perl and retry.
exit 1
fi
LANG=C
latest=$($get http://ftpmirror.gnu.org/parallel |
perl -ne '/.*(parallel-\d{8})/ and print $1."\n"' |
perl -e 'print ((reverse sort <>)[0])')
if test \! -e "$latest".tar.bz2; then
# Source tar does not exist
rm -f "$latest".tar.bz2 "$latest".tar.bz2.sig
$get http://ftpmirror.gnu.org/parallel/"$latest".tar.bz2 > "$latest".tar.bz2
$get http://ftpmirror.gnu.org/parallel/"$latest".tar.bz2.sig > "$latest".tar.bz2.sig
fi
fetch_keys() {
if gpg -h 2>/dev/null >/dev/null ; then
# GnuPG installed
# Setup .gnupg/gpg.conf if not already done
echo | gpg 2>/dev/null >/dev/null
if gpg --list-keys 0x2C6229E2FFFFFFF1 && gpg --list-keys 0xD1AB451688888888 ; then
echo Keys fetched
# OK
return 0
else
keyservers="keyserver.ubuntu.com
pgp.surf.nl
keys.openpgp.org
pgp.benny-baumann.de"
for keyserver in $keyservers ; do
if gpg --keyserver "$keyserver" --recv-key 0x2C6229E2FFFFFFF1 &&
gpg --keyserver "$keyserver" --recv-key 0xD1AB451688888888 ; then
# OK
return 0
fi
done
echo
echo "Cannot fetch keyID 0xD1AB451688888888, so the signature cannot be checked."
return 1
fi
else
# GnuPG not installed
echo
echo "GnuPG (gpg) is not installed so the signature cannot be checked."
return 1
fi
}
# Check signature - in case ftpmirror.gnu.org is compromised
if fetch_keys; then
if gpg --with-fingerprint "$latest".tar.bz2.sig 2>&1 |
perl -e 'exit not grep /^Primary key fingerprint: BE9C B493 81DE 3166 A3BC..66C1 2C62 29E2 FFFF FFF1|^Primary key fingerprint: CDA0 1A42 08C4 F745 0610..7E7B D1AB 4516 8888 8888/, <>'; then
# Source code signed by Ole Tange <ole@tange.dk>
# KeyID 0x2C6229E2FFFFFFF1/0xD1AB451688888888
true
else
# GnuPG signature failed
echo
echo "The signature on $latest.tar.bz2 is wrong. This may indicate that a criminal has changed the code."
echo "THIS IS BAD AND THE CODE WILL NOT BE INSTALLED."
echo
echo "See http://git.savannah.gnu.org/cgit/parallel.git/tree/README for other installation methods."
exit 1
fi
else
# GnuPG not installed or public keys not downloaded
echo "This means that if the code has been changed by criminals, you will not discover that!"
echo
echo "Continue anyway? (y/n)"
read YN </dev/tty
if test "$YN" = "n"; then
# Stop
exit 2
else
# Continue
true
fi
fi
bzip2 -dc "$latest".tar.bz2 | tar xf -
cd "$latest" || exit 2
if ./configure && make && make install; then
echo
echo "GNU $latest installed globally"
else
if ./configure --prefix="$HOME" && make && make install; then
echo
echo "GNU $latest installed in $HOME/bin"
else
mkdir -p "$HOME"/bin/;
chmod 755 src/*;
cp src/parallel src/env_parallel* src/sem src/sql src/niceload src/parcat "$HOME"/bin;
echo
echo "GNU $latest copied to $HOME/bin"
fi
# Is $HOME/bin already in $PATH?
if echo "$PATH" | grep "$HOME"/bin >/dev/null; then
# $HOME/bin is already in $PATH
true
else
# Add $HOME/bin to $PATH for both bash and csh
echo 'PATH=$PATH:$HOME/bin' >> "$HOME"/.bashrc
echo 'setenv PATH ${PATH}:${HOME}/bin' >> "$HOME"/.cshrc
fi
# Is $HOME/share/man already in $MANPATH?
if echo "$MANPATH" | grep "$HOME"/share/man >/dev/null; then
# $HOME/share/man is already in $MANPATH
true
else
# Add $HOME/share/man to $MANPATH for both bash and csh
echo 'export MANPATH=$MANPATH:$HOME/share/man' >> "$HOME"/.bashrc
echo 'setenv MANPATH ${MANPATH}:${HOME}/share/man' >> "$HOME"/.cshrc
fi
fi
}
# Make sure the whole script is downloaded before starting
run