import os
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import glob
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"""
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One day, when this module grows up, it might actually try to fix things.
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'apt-cache search | apt-get install' ... or a less terrifying version of
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the same. With added distro-independant pixie dust.
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"""
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def command(cmd):
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# this could use '/usr/bin/which', I suppose. But this seems simpler
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for dir in os.environ['PATH'].split(':'):
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file = os.path.join(os.path.expandvars(os.path.expanduser(dir)), cmd)
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if os.path.exists(file):
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return file
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raise ValueError('Missing command: %s' % cmd)
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def commands(*cmds):
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results = []
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for cmd in cmds:
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results.append(command(cmd))
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def library(lib):
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lddirs = []
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# read lddirs from main ld.so.conf file
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for line in open('/etc/ld.so.conf', 'r').readlines():
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if line.startswith('include '):
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glob_pattern = line.split('include ')[1]
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if not os.path.isabs(glob_pattern):
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# prepend with a base path of '/etc'
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glob_pattern = os.path.join('/etc', glob_pattern)
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glob_result = glob.glob(glob_pattern)
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for conf_file in glob_result:
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for conf_file_line in open(conf_file, 'r').readlines():
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if os.path.isdir(conf_file_line):
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lddirs.append(conf_file_line)
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else:
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if os.path.isdir(line):
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lddirs.append(line.strip())
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lddirs = set(lddirs)
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lddirs = list(lddirs)
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for dir in ['/lib', '/usr/lib', '/lib64', '/usr/lib64'] + lddirs:
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file = os.path.join(dir, lib)
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if os.path.exists(file):
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return file
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raise ValueError('Missing library: %s' % lib)
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def libraries(*libs):
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results = []
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for lib in libs:
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results.append(library(lib))
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def header(hdr):
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for dir in ['/usr/include', '/usr/local/include']:
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file = os.path.join(dir, hdr)
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if os.path.exists(file):
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return file
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raise ValueError('Missing header: %s' % hdr)
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def headers(*hdrs):
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results = []
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for hdr in hdrs:
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results.append(header(hdr))
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