149 lines
4.3 KiB
Bash
Executable File
149 lines
4.3 KiB
Bash
Executable File
#! /bin/bash
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# Run a testcase on a remote system, via ssh.
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# Copyright (C) 2012 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <http://www.gnu.org/licenses/>.
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# usage: cross-test-ssh.sh [--ssh SSH] HOST COMMAND ...
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# Run with --help flag to get more detailed help.
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progname="$(basename $0)"
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env_blacklist='HOME LOGNAME MAIL PATH SHELL SHLVL SSH_CLIENT SSH_CONNECTION
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USER TERM TERMCAP PWD'
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usage="usage: ${progname} [--ssh SSH] HOST COMMAND ..."
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help="Run a glibc test COMMAND on the remote machine HOST, via ssh,
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passing environment variables, preserving the current working directory,
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and respecting quoting.
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If the '--ssh SSH' flag is present, use SSH as the SSH command,
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instead of ordinary 'ssh'.
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To use this to run glibc tests, invoke the tests as follows:
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$ make test-wrapper='ABSPATH/cross-test-ssh.sh HOST' tests
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where ABSPATH is the absolute path to this script, and HOST is the
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name of the machine to connect to via ssh.
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If you need to connect to the test machine as a different user, you
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may specify that just as you would to SSH:
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$ make test-wrapper='ABSPATH/cross-test-ssh.sh USER@HOST' tests
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Naturally, the remote user must have an appropriate public key, and
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you will want to ensure that SSH does not prompt interactively for a
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password on each connection.
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HOST and the build machines (on which 'make check' is being run) must
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share a filesystem; all files needed by the tests must be visible at
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the same paths on both machines.
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${progname} runs COMMAND in the same directory on the HOST that
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${progname} itself is run in on the build machine.
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The command and arguments are passed to the remote host in a way that
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avoids any further shell substitution or expansion, on the assumption
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that the shell on the build machine has already done them
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appropriately.
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${progname} propagates the values all environment variables through to
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the remote target, except the following:
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${env_blacklist}"
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ssh='ssh'
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while [ $# -gt 0 ]; do
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case "$1" in
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"--ssh")
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shift
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if [ $# -lt 1 ]; then
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break
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fi
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ssh="$1"
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;;
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"--help")
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echo "$usage"
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echo "$help"
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exit 0
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;;
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*)
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break
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;;
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esac
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shift
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done
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if [ $# -lt 1 ]; then
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echo "$usage" >&2
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echo "Type '${progname} --help' for more detailed help." >&2
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exit 1
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fi
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host="$1"; shift
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# Print the sequence of arguments as strings properly quoted for the
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# Bourne shell, separated by spaces.
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bourne_quote ()
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{
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local arg qarg
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for arg in "$@"; do
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qarg=${arg//\'/\'\\\'\'}
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echo -n "'$qarg' "
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done
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}
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# Remove unnecessary newlines from a Bourne shell command sequence.
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remove_newlines ()
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{
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sed -n \
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-e '1h' \
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-e '2,$H' \
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-e '${g
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s/\([^\]\)\n/\1; /g
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p
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}'
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}
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# Unset all variables from the blacklist. Then echo all exported
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# variables. The 'export -p' command adds backslashes for environment
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# variables which contain newlines.
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blacklist_exports ()
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{
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(unset ${env_blacklist}; export -p) | remove_newlines
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}
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# Produce properly quoted Bourne shell arguments for 'env' to carry
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# over the current environment, less blacklisted variables.
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exports="$(blacklist_exports)"
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exports="${exports:+${exports}; }"
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# Transform the current argument list into a properly quoted Bourne shell
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# command string.
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command="$(bourne_quote "$@")"
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# Add commands to set environment variables and the current directory.
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command="${exports}cd $PWD; ${command}"
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# HOST's sshd simply concatenates its arguments with spaces and
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# passes them to some shell. We want to force the use of /bin/sh,
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# so we need to re-quote the whole command to ensure it appears as
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# the sole argument of the '-c' option.
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full_command="$(bourne_quote "${command}")"
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$ssh "$host" /bin/sh -c "$full_command"
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