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 0xFFFFFFF1 && gpg --list-keys 0x88888888 ; then
  73                 echo Keys fetched
  74                 # OK
  75                 return 0
  76             else
  77                 keyservers="keyserver.ubuntu.com
  78                             pgp.surf.nl
  79                             keyserver.bazon.ru
  80                             agora.cenditel.gob.ve
  81                             pgp.benny-baumann.de"
  82                 for keyserver in $keyservers ; do
  83                     if gpg --keyserver "$keyserver" --recv-key 0xFFFFFFF1 &&
  84                             gpg --keyserver "$keyserver" --recv-key 0x88888888 ; then
  85                         # OK
  86                         return 0
  87                     fi
  88                 done
  89                 echo
  90                 echo "Cannot fetch keyID 0x88888888, so the signature cannot be checked."
  91                 return 1
  92             fi
  93         else
  94             # GnuPG not installed
  95             echo
  96             echo "GnuPG (gpg) is not installed so the signature cannot be checked."
  97             return 1
  98         fi
  99     }
 100
 101     # Check signature - in case ftpmirror.gnu.org is compromised
 102     if fetch_keys; then
 103         if gpg --with-fingerprint "$latest".tar.bz2.sig 2>&1 |
 104                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
 105             # Source code signed by Ole Tange <ole@tange.dk>
 106             # KeyID FFFFFFF1/88888888
 107             true
 108         else
 109             # GnuPG signature failed
 110             echo
 111             echo "The signature on $latest.tar.bz2 is wrong. This may indicate that a criminal has changed the code."
 112             echo "THIS IS BAD AND THE CODE WILL NOT BE INSTALLED."
 113             echo
 114             echo "See http://git.savannah.gnu.org/cgit/parallel.git/tree/README for other installation methods."
 115             exit 1
 116         fi
 117     else
 118         # GnuPG not installed or public keys not downloaded
 119         echo "This means that if the code has been changed by criminals, you will not discover that!"
 120         echo
 121         echo "Continue anyway? (y/n)"
 122         read YN </dev/tty
 123         if test "$YN" = "n"; then
 124             # Stop
 125             exit 2
 126         else
 127             # Continue
 128             true
 129         fi
 130     fi
 131
 132     bzip2 -dc "$latest".tar.bz2 | tar xf -
 133     cd "$latest" || exit 2
 134     if ./configure && make && make install; then
 135         echo
 136         echo "GNU $latest installed globally"
 137     else
 138         if ./configure --prefix="$HOME" && make && make install; then
 139             echo
 140             echo "GNU $latest installed in $HOME/bin"
 141         else
 142             mkdir -p "$HOME"/bin/;
 143             chmod 755 src/*;
 144             cp src/parallel src/env_parallel* src/sem src/sql src/niceload src/parcat "$HOME"/bin;
 145             echo
 146             echo "GNU $latest copied to $HOME/bin"
 147         fi
 148
 149         # Is $HOME/bin already in $PATH?
 150         if echo "$PATH" | grep "$HOME"/bin >/dev/null; then
 151             # $HOME/bin is already in $PATH
 152             true
 153         else
 154             # Add $HOME/bin to $PATH for both bash and csh
 155             echo 'PATH=$PATH:$HOME/bin' >> "$HOME"/.bashrc
 156             echo 'setenv PATH ${PATH}:${HOME}/bin' >> "$HOME"/.cshrc
 157         fi
 158
 159         # Is $HOME/share/man already in $MANPATH?
 160         if echo "$MANPATH" | grep "$HOME"/share/man >/dev/null; then
 161             # $HOME/share/man is already in $MANPATH
 162             true
 163         else
 164             # Add $HOME/share/man to $MANPATH for both bash and csh
 165             echo 'export MANPATH=$MANPATH:$HOME/share/man' >> "$HOME"/.bashrc
 166             echo 'setenv MANPATH ${MANPATH}:${HOME}/share/man' >> "$HOME"/.cshrc
 167         fi
 168     fi
 169 }
 170
 171 # Make sure the whole script is downloaded before starting
 172 run