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d9dd94711d
This fits with the goal of eliminating non-Python scripting languages, and makes forthcoming changes far easier. Reviewed-by: Martin Kletzander <mkletzan@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
82 lines
2.5 KiB
Python
82 lines
2.5 KiB
Python
#!/usr/bin/env python3
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# libvirt 'run' programs locally script
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# Copyright (C) 2012-2021 Red Hat, Inc.
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#
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# This 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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#
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# This 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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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; If not, see
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# <http://www.gnu.org/licenses/>.
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#----------------------------------------------------------------------
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#
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# With this script you can run libvirt programs without needing to
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# install them first. You just have to do for example:
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#
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# ./run virsh [args ...]
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#
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# Note that this runs the locally compiled copy of virsh which
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# is usually want you want.
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#
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# You can also run the C programs under valgrind like this:
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#
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# ./run valgrind [valgrind opts...] ./program
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#
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# or under gdb:
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#
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# ./run gdb --args ./program
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#
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# This also works with sudo (eg. if you need root access for libvirt):
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#
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# sudo ./run virsh list --all
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#
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#----------------------------------------------------------------------
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import os
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import os.path
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import random
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import sys
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# Function to intelligently prepend a path to an environment variable.
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# See https://stackoverflow.com/a/9631350
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def prepend(env, varname, extradir):
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if varname in os.environ:
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env[varname] = extradir + ":" + env[varname]
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else:
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env[varname] = extradir
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here = "@abs_builddir@"
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if len(sys.argv) < 2:
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print("syntax: %s BINARY [ARGS...]" % sys.argv[0], file=sys.stderr)
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sys.exit(1)
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prog = sys.argv[1]
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args = sys.argv[1:]
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env = os.environ
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prepend(env, "LD_LIBRARY_PATH", os.path.join(here, "src"))
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prepend(env, "PKG_CONFIG_PATH", os.path.join(here, "src"))
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prepend(env, "PATH", os.path.join(here, "tools"))
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# Ensure that any 3rd party apps using libvirt.so from the build tree get
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# files resolved to the build/source tree too. Typically useful for language
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# bindings running tests against non-installed libvirt.
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env["LIBVIRT_DIR_OVERRIDE"] = "1"
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# This is a cheap way to find some use-after-free and uninitialized
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# read problems when using glibc.
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env["MALLOC_PERTURB_"] = "%d" % random.randint(1, 255)
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# Run the program.
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os.execvpe(prog, args, env)
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