10seconds_install

   1 #!/bin/bash
   2
   3 true <<'EOF'
   4 <p>
   5      This script downloads the latest version of GNU Parallel, checks
   6      the signature and installs it.
   7
   8 <p>  It first tries to install it globally.
   9 <br> If that fails, it does a personal installation.
  10 <br> If that fails, it copies to $HOME/bin
  11
  12 <p>  You can download and run the script directly by:
  13
  14 <p>  $ (wget -O - pi.dk/3 || lynx -source pi.dk/3 ||
  15         curl pi.dk/3/ || fetch -o - http://pi.dk/3) > install.sh
  16 <br> $ sha1sum install.sh | grep 12345678
  17 <br> $ md5sum install.sh
  18 <br> $ sha512sum install.sh
  19
  20 <p>  Check the sums from https://gnu.org/s/parallel/checksums
  21 <br> Then run:
  22
  23 <p>  $ bash install.sh
  24
  25
  26 <br><br><br><br>
  27 EOF
  28
  29 # SPDX-FileCopyrightText: 2013-2022 Ole Tange, http://ole.tange.dk and Free Software and Foundation, Inc.
  30 #
  31 # SPDX-License-Identifier: GPL-3.0-or-later
  32 #
  33 # This program is free software; you can redistribute it and/or
  34 # modify it under the terms of the GNU General Public License as
  35 # published by the Free Software Foundation; either version 3 of
  36 # the License, or (at your option) any later version.
  37
  38 run() {
  39     # FreeBSD prefers 'fetch', MacOS prefers 'curl', Linux prefers 'wget'
  40     get=$(
  41         (lynx -source /dev/null && echo lynx -source) ||
  42             (fetch -o /dev/null file:///bin/sh && echo fetch -o -) ||
  43             (curl -h >/dev/null && echo curl -L) ||
  44             (wget -h >/dev/null && echo wget -qO -) ||
  45             echo 'No lynx, wget, curl, fetch: Please inform parallel@gnu.org what you use for downloading URLs' >&2
  46        )
  47     if test "$get" = ""; then
  48         exit 1
  49     fi
  50
  51     if ! perl -e 1; then
  52         echo No perl installed. GNU Parallel depends on perl. Install perl and retry.
  53         exit 1
  54     fi
  55
  56     LANG=C
  57     latest=$($get http://ftpmirror.gnu.org/parallel |
  58                  perl -ne '/.*(parallel-\d{8})/ and print $1."\n"' |
  59                  perl -e 'print ((reverse sort <>)[0])')
  60     if test \! -e "$latest".tar.bz2; then
  61         # Source tar does not exist
  62         rm -f "$latest".tar.bz2 "$latest".tar.bz2.sig
  63         $get http://ftpmirror.gnu.org/parallel/"$latest".tar.bz2 > "$latest".tar.bz2
  64         $get http://ftpmirror.gnu.org/parallel/"$latest".tar.bz2.sig > "$latest".tar.bz2.sig
  65     fi
  66
  67     fetch_keys() {
  68         if gpg -h 2>/dev/null >/dev/null ; then
  69             # GnuPG installed
  70             # Setup .gnupg/gpg.conf if not already done
  71             echo | gpg 2>/dev/null >/dev/null
  72             if gpg --list-keys 0x2C6229E2FFFFFFF1 && gpg --list-keys 0xD1AB451688888888 ; then
  73                 echo Keys fetched
  74                 # OK
  75                 return 0
  76             else
  77                 keyservers="keyserver.ubuntu.com
  78                             pgp.surf.nl
  79                             keys.openpgp.org
  80                             pgp.benny-baumann.de"
  81                 for keyserver in $keyservers ; do
  82                     if gpg --keyserver "$keyserver" --recv-key 0x2C6229E2FFFFFFF1 &&
  83                             gpg --keyserver "$keyserver" --recv-key 0xD1AB451688888888 ; then
  84                         # OK
  85                         return 0
  86                     fi
  87                 done
  88                 echo
  89                 echo "Cannot fetch keyID 0xD1AB451688888888, so the signature cannot be checked."
  90                 return 1
  91             fi
  92         else
  93             # GnuPG not installed
  94             echo
  95             echo "GnuPG (gpg) is not installed so the signature cannot be checked."
  96             return 1
  97         fi
  98     }
  99
 100     # Check signature - in case ftpmirror.gnu.org is compromised
 101     if fetch_keys; then
 102         if gpg --with-fingerprint "$latest".tar.bz2.sig 2>&1 |
 103                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
 104             # Source code signed by Ole Tange <ole@tange.dk>
 105             # KeyID 0x2C6229E2FFFFFFF1/0xD1AB451688888888
 106             true
 107         else
 108             # GnuPG signature failed
 109             echo
 110             echo "The signature on $latest.tar.bz2 is wrong. This may indicate that a criminal has changed the code."
 111             echo "THIS IS BAD AND THE CODE WILL NOT BE INSTALLED."
 112             echo
 113             echo "See http://git.savannah.gnu.org/cgit/parallel.git/tree/README for other installation methods."
 114             exit 1
 115         fi
 116     else
 117         # GnuPG not installed or public keys not downloaded
 118         echo "This means that if the code has been changed by criminals, you will not discover that!"
 119         echo
 120         echo "Continue anyway? (y/n)"
 121         read YN </dev/tty
 122         if test "$YN" = "n"; then
 123             # Stop
 124             exit 2
 125         else
 126             # Continue
 127             true
 128         fi
 129     fi
 130
 131     bzip2 -dc "$latest".tar.bz2 | tar xf -
 132     cd "$latest" || exit 2
 133     if ./configure && make && make install; then
 134         echo
 135         echo "GNU $latest installed globally"
 136     else
 137         if ./configure --prefix="$HOME" && make && make install; then
 138             echo
 139             echo "GNU $latest installed in $HOME/bin"
 140         else
 141             mkdir -p "$HOME"/bin/;
 142             chmod 755 src/*;
 143             cp src/parallel src/env_parallel* src/sem src/sql src/niceload src/parcat "$HOME"/bin;
 144             echo
 145             echo "GNU $latest copied to $HOME/bin"
 146         fi
 147
 148         # Is $HOME/bin already in $PATH?
 149         if echo "$PATH" | grep "$HOME"/bin >/dev/null; then
 150             # $HOME/bin is already in $PATH
 151             true
 152         else
 153             # Add $HOME/bin to $PATH for both bash and csh
 154             echo 'PATH=$PATH:$HOME/bin' >> "$HOME"/.bashrc
 155             echo 'setenv PATH ${PATH}:${HOME}/bin' >> "$HOME"/.cshrc
 156         fi
 157
 158         # Is $HOME/share/man already in $MANPATH?
 159         if echo "$MANPATH" | grep "$HOME"/share/man >/dev/null; then
 160             # $HOME/share/man is already in $MANPATH
 161             true
 162         else
 163             # Add $HOME/share/man to $MANPATH for both bash and csh
 164             echo 'export MANPATH=$MANPATH:$HOME/share/man' >> "$HOME"/.bashrc
 165             echo 'setenv MANPATH ${MANPATH}:${HOME}/share/man' >> "$HOME"/.cshrc
 166         fi
 167     fi
 168 }
 169
 170 # Make sure the whole script is downloaded before starting
 171 run