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: 2013-2021 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 > "$latest".tar.bz2.sig
  65     fi
  66
  67     fetch_keys() {
  68         if gpg -h 2>/dev/null >/dev/null ; then
  69             # GnuPG installed
  70             # Setup .gnupg/gpg.conf if not already done
  71             echo | gpg 2>/dev/null >/dev/null
  72             if gpg --list-keys 0xFFFFFFF1 && gpg --list-keys 0x88888888 ; then
  73                 echo Keys fetched
  74                 # OK
  75                 return 0
  76             else
  77                 keyserver1=keys.gnupg.net
  78                 keyserver2=pool.sks-keyservers.net
  79                 if gpg --keyserver "$keyserver1" --recv-key 0xFFFFFFF1 ||
  80                         gpg --keyserver "$keyserver2" --recv-key 0xFFFFFFF1 ; then
  81                     if gpg --keyserver "$keyserver1" --recv-key 0x88888888 ||
  82                             gpg --keyserver "$keyserver2" --recv-key 0x88888888; then
  83                         # OK
  84                         return 0
  85                     else
  86                         echo
  87                         echo "Cannot fetch keyID 0x88888888, so the signature cannot be checked."
  88                         return 1
  89                     fi
  90                 else
  91                     echo
  92                     echo "Cannot fetch keyID 0xFFFFFFF1, so the signature cannot be checked."
  93                     return 1
  94                 fi
  95             fi
  96         else
  97             # GnuPG not installed
  98             echo
  99             echo "GnuPG (gpg) is not installed so the signature cannot be checked."
 100             return 1
 101         fi
 102     }
 103
 104     # Check signature - in case ftpmirror.gnu.org is compromised
 105     if fetch_keys; then
 106         if gpg --with-fingerprint "$latest".tar.bz2.sig 2>&1 |
 107                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
 108             # Source code signed by Ole Tange <ole@tange.dk>
 109             # KeyID FFFFFFF1/88888888
 110             true
 111         else
 112             # GnuPG signature failed
 113             echo
 114             echo "The signature on $latest.tar.bz2 is wrong. This may indicate that a criminal has changed the code."
 115             echo "THIS IS BAD AND THE CODE WILL NOT BE INSTALLED."
 116             echo
 117             echo "See http://git.savannah.gnu.org/cgit/parallel.git/tree/README for other installation methods."
 118             exit 1
 119         fi
 120     else
 121         # GnuPG not installed or public keys not downloaded
 122         echo "This means that if the code has been changed by criminals, you will not discover that!"
 123         echo
 124         echo "Continue anyway? (y/n)"
 125         read YN </dev/tty
 126         if test "$YN" = "n"; then
 127             # Stop
 128             exit 2
 129         else
 130             # Continue
 131             true
 132         fi
 133     fi
 134
 135     bzip2 -dc "$latest".tar.bz2 | tar xf -
 136     cd "$latest" || exit 2
 137     if ./configure && make && make install; then
 138         echo
 139         echo "GNU $latest installed globally"
 140     else
 141         if ./configure --prefix="$HOME" && make && make install; then
 142             echo
 143             echo "GNU $latest installed in $HOME/bin"
 144         else
 145             mkdir -p "$HOME"/bin/;
 146             chmod 755 src/*;
 147             cp src/parallel src/env_parallel* src/sem src/sql src/niceload src/parcat "$HOME"/bin;
 148             echo
 149             echo "GNU $latest copied to $HOME/bin"
 150         fi
 151
 152         # Is $HOME/bin already in $PATH?
 153         if echo "$PATH" | grep "$HOME"/bin >/dev/null; then
 154             # $HOME/bin is already in $PATH
 155             true
 156         else
 157             # Add $HOME/bin to $PATH for both bash and csh
 158             echo 'PATH=$PATH:$HOME/bin' >> "$HOME"/.bashrc
 159             echo 'setenv PATH ${PATH}:${HOME}/bin' >> "$HOME"/.cshrc
 160         fi
 161
 162         # Is $HOME/share/man already in $MANPATH?
 163         if echo "$MANPATH" | grep "$HOME"/share/man >/dev/null; then
 164             # $HOME/share/man is already in $MANPATH
 165             true
 166         else
 167             # Add $HOME/share/man to $MANPATH for both bash and csh
 168             echo 'export MANPATH=$MANPATH:$HOME/share/man' >> "$HOME"/.bashrc
 169             echo 'setenv MANPATH ${MANPATH}:${HOME}/share/man' >> "$HOME"/.cshrc
 170         fi
 171     fi
 172 }
 173
 174 # Make sure the whole script is downloaded before starting
 175 run