/usr/bin/starch is in coop-computing-tools 4.0-1ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# Copyright (c) 2010- The University of Notre Dame.
# This software is distributed under the GNU General Public License.
# See the file COPYING for details.
""" Starch """
from cStringIO import StringIO
from optparse import OptionParser
from subprocess import Popen, PIPE
from tarfile import REGTYPE, TarInfo, open as Tar
from time import time
from tempfile import NamedTemporaryFile
from shutil import copyfile, copyfileobj
from ConfigParser import ConfigParser, NoSectionError, NoOptionError
import os
import sys
# Todo
"""
1. Keep track of files added to avoid duplication (efficiency).
"""
# Global variables
STARCH_AUTODETECT = True
STARCH_VERBOSE = False
STARCH_PLATFORM = 'Linux'
# Shell scripts
SFX_SH='''#!/bin/sh
SFX_FILE=$0
SFX_EXIT_STATUS=0
if [ -z "$SFX_DIR" ]; then
basename=`basename $SFX_FILE`
SFX_DIR=`hostname`.$USER.$basename.dir
if [ ! -z "$CONDOR_SCRATCH_DIR" ]; then
SFX_DIR=$CONDOR_SCRATCH_DIR/$SFX_DIR
elif [ ! -z "$_CONDOR_SCRATCH_DIR" ]; then
SFX_DIR=$_CONDOR_SCRATCH_DIR/$SFX_DIR
elif [ ! -z "$XGRID_AGENT_NAME" ]; then
SFX_DIR=`pwd`/$SFX_DIR
else
SFX_DIR=/tmp/$SFX_DIR
fi
if [ ! -z "$SFX_UNIQUE" ] && [ "$SFX_UNIQUE" = 1 ]; then
SFX_DIR=`mktemp -d -u $SFX_DIR.XXXXXX`
fi
fi
extract() {
if [ ! -d "$SFX_DIR" -o "$SFX_EXTRACT_FORCE" -eq 1 ]; then
mkdir -p $SFX_DIR 2> /dev/null
archive=`awk '/^__ARCHIVE__/ {print NR + 1; exit 0; }' $SFX_FILE`
tail -n+$archive $SFX_FILE | tar xj -C $SFX_DIR
SFX_EXIT_STATUS=$?
fi
}
run() {
$SFX_DIR/run.sh $@
SFX_EXIT_STATUS=$?
}
if [ -z "$SFX_EXTRACT_ONLY" ]; then
SFX_EXTRACT_ONLY=0
fi
if [ -z "$SFX_EXTRACT_FORCE" ]; then
SFX_EXTRACT_FORCE=0
fi
if [ -z "$SFX_KEEP" ]; then
SFX_KEEP=0
fi
if [ "$SFX_EXTRACT_ONLY" -eq 1 ]; then
extract
echo $SFX_DIR
SFX_KEEP=1
else
extract && run $@
fi
if [ "$SFX_KEEP" -ne 1 ]; then
rm -fr $SFX_DIR
fi
exit $SFX_EXIT_STATUS
__ARCHIVE__
'''
RUN_SH = '''#!/bin/sh
SFX_DIR=`dirname $0`
if [ -d "$SFX_DIR/env" ]; then
for f in $SFX_DIR/env/*; do
. $f
done
fi
if [ -d "$SFX_DIR/bin" ]; then
export PATH=$SFX_DIR/bin:$PATH
fi
if [ -d "$SFX_DIR/lib" ]; then
if [ x"`uname -s`" == x"Darwin" ]; then
if [ -z "$DYLD_LIBRARY_PATH" ]; then
export DYLD_LIBRARY_PATH=$SFX_DIR/lib
else
export DYLD_LIBRARY_PATH=$SFX_DIR/lib:$DYLD_LIBRARY_PATH
fi
else
if [ -z "$LD_LIBRARY_PATH" ]; then
export LD_LIBRARY_PATH=$SFX_DIR/lib
else
export LD_LIBRARY_PATH=$SFX_DIR/lib:$LD_LIBRARY_PATH
fi
fi
fi
%s
'''
# Create SFX
def create_sfx(sfx_path, executables, libraries, data, environments, command):
""" Create self-extracting executable
Directory structure:
bin Executables
lib Libraries
env Environment Scripts (static)
run.sh Script that contains command
"""
tmp_file = NamedTemporaryFile()
tmp_file.close()
arc_path = tmp_file.name
archive = Tar(arc_path, 'w:bz2')
debug('adding executables...')
executables = find_executables(executables)
for exe_path, real_path in executables:
exe_name = os.path.basename(exe_path)
exe_info = archive.gettarinfo(real_path, os.path.join('bin', exe_name))
exe_info.mode = 0755
debug(' adding executable: %s (%s)' % (exe_name, real_path))
archive.addfile(exe_info, open(real_path))
debug('adding libraries...')
libraries = find_libraries(libraries, executables)
for lib_path, real_path in libraries:
lib_name = os.path.basename(lib_path)
lib_info = archive.gettarinfo(real_path, os.path.join('lib', lib_name))
debug(' adding library: %s (%s)' % (lib_name, real_path))
archive.addfile(lib_info, open(real_path))
debug('adding data...')
for data_path, real_path in map(lambda s: s.split(':'), data):
add_data_to_archive(archive, os.path.normpath(data_path), os.path.normpath(real_path))
debug('adding environment scripts...')
for env_path, real_path in find_files(environments, 'PWD'):
env_name = os.path.basename(env_path)
env_info = archive.gettarinfo(real_path, os.path.join('env', env_name))
debug(' adding environment script: %s (%s)' % (env_name, real_path))
archive.addfile(env_info, open(real_path))
run_info = TarInfo('run.sh')
run_info_data = RUN_SH % command
run_info.mode = 0755
run_info.mtime = time()
run_info.size = len(run_info_data)
debug('adding run.sh...')
archive.addfile(run_info, StringIO(run_info_data))
archive.close()
if os.path.exists(sfx_path):
os.unlink(sfx_path)
debug('creating sfx...')
sfx_file = open(sfx_path, 'a+')
copyfileobj(StringIO(SFX_SH), sfx_file)
copyfileobj(open(arc_path, 'r'), sfx_file)
sfx_file.close()
debug('cleaning up...')
os.chmod(sfx_path, 0755)
os.unlink(arc_path)
def add_data_to_archive(archive, data_path, real_path):
if os.path.isdir(real_path):
for root, dirs, files in os.walk(real_path):
for n in files + dirs:
dp = os.path.join(root.replace(real_path, data_path), n)
rp = os.path.join(root, n)
add_data_to_archive(archive, dp, rp)
else:
data_info = archive.gettarinfo(os.path.realpath(real_path), data_path)
debug(' adding data: %s (%s)' % (data_path, real_path))
archive.addfile(data_info, open(real_path))
# Print utilities
def debug(s):
if STARCH_VERBOSE:
print '[D]', s
def warn(s):
print >>sys.stderr, '[W]', s
def error(s):
print >>sys.stderr, '[E]', s
sys.exit(1)
# Find file utilities
def find_files(files, env_var, default_paths = None):
if default_paths:
paths = default_paths
else:
paths = [os.curdir]
if env_var in os.environ:
paths.extend(os.environ[env_var].split(':'))
for file in files:
is_found = False
for path in paths:
file_path = os.path.join(path, file)
if os.path.exists(file_path):
is_found = True
yield file_path, os.path.realpath(file_path)
break
if not is_found:
error('could not find file: %s' % file)
raise StopIteration
def find_executables(executables):
exes = []
for ep, rp in find_files(executables, 'PATH'):
exes.append((ep, rp))
return exes
def find_libraries(libraries, executables):
libs = []
for lp, rp in find_files(libraries, 'LD_LIBRARY_PATH', ['/lib', '/lib64', '/usr/lib', '/usr/lib64']):
libs.append((lp, rp))
if STARCH_AUTODETECT:
for exe_path, real_path in executables:
if STARCH_PLATFORM == 'Darwin':
libs.extend(autodetect_libraries_darwin(exe_path))
else:
libs.extend(autodetect_libraries_linux(exe_path))
return libs
def autodetect_libraries_linux(executable):
libs = []
try:
p = Popen(['ldd', executable], stdout = PIPE)
for line in p.communicate()[0].split('\n'):
try:
lib_path = line.split('=>')[-1].strip().split()[0]
if os.path.exists(lib_path):
libs.append((lib_path, os.path.realpath(lib_path)))
except Exception, e:
pass
except Exception, e:
error('could not execute ldd on %s: %s' % (executable, str(e)))
return libs
def autodetect_libraries_darwin(executable):
libs = []
try:
p = Popen(['otool', '-L', executable], stdout = PIPE)
for line in p.communicate()[0].split('\n'):
try:
lib_path = line.split('(')[0].strip()
if os.path.exists(lib_path):
libs.append((lib_path, os.path.realpath(lib_path)))
except Exception, e:
pass
except Exception, e:
error('could not execute otool on %s: %s' % (executable, str(e)))
return libs
# Configuration Parser
class StarchConfigParser(ConfigParser):
def get(self, section, name, default = None):
try:
return ConfigParser.get(self, section, name)
except (NoSectionError, NoOptionError), e:
return default
# Parse commandline options
def parse_command_line_options():
global STARCH_VERBOSE
global STARCH_AUTODETECT
global STARCH_PLATFORM
parser = OptionParser('%prog [options] <sfx_path>')
parser.add_option('-A', dest = 'autodetect', action = 'store_false',
help = 'Do not automatically detect library dependencies (default: enabled).', default=True)
parser.add_option('-C', dest = 'config', action = 'store',
help = 'Use configuration file.', metavar = 'cfg', default = None)
parser.add_option('-c', dest = 'command', action = 'store',
help = 'Specify command to execute.', metavar = 'cmd', default = '')
parser.add_option('-d', dest = 'data', action = 'append',
help = 'Add data (new path:old path).', metavar = 'npath:opath', default = [])
parser.add_option('-e', dest = 'environments', action = 'append',
help = 'Add environment script.', metavar = 'env', default = [])
parser.add_option('-l', dest = 'libraries', action = 'append',
help = 'Add library.', metavar = 'lib', default = [])
parser.add_option('-x', dest = 'executables', action = 'append',
help = 'Add executable.', metavar = 'exe', default = [])
parser.add_option('-v', dest = 'verbose', action = 'store_true',
help = 'Display verbose messages.', default = False)
(options, args) = parser.parse_args()
if len(args) != 1:
parser.print_help()
sys.exit(1)
STARCH_VERBOSE = options.verbose
STARCH_AUTODETECT = options.autodetect
STARCH_PLATFORM = os.uname()[0]
if options.config:
if not os.path.exists(options.config):
error('config file \'%s\' does not exist' % options.config)
config = StarchConfigParser()
config.read(options.config)
options.executables.extend(config.get('starch', 'executables', '').split())
options.libraries.extend(config.get('starch', 'libraries', '').split())
options.data.extend(config.get('starch', 'data', '').split())
options.environments.extend(config.get('starch', 'environments', '').split())
if not options.command:
options.command = config.get('starch', 'command', '')
if not options.executables:
error('no executables specified')
if not options.command:
options.command = os.path.basename(options.executables[0]) + ' $@'
warn('no command specified, so using: %s' % options.command)
debug('command ... ' + options.command)
return args[0], options.executables, options.libraries, \
options.data, options.environments, options.command
# Main execution
if __name__ == '__main__':
create_sfx(*parse_command_line_options())
# vim: set sts=4 sw=4 ts=8 expandtab ft=python:
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