| 1 | # -*- Mode: Python; test-case-name: moap.test.test_util_distro -*- |
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| 2 | # vi:si:et:sw=4:sts=4:ts=4 |
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| 3 | |
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| 4 | import commands |
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| 5 | import os |
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| 6 | |
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| 7 | import distutils.version |
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| 8 | |
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| 9 | from moap.util import log |
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| 10 | |
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| 11 | """ |
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| 12 | Figure out what distribution, architecture and version the user is on. |
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| 13 | """ |
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| 14 | |
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| 15 | class Distro: |
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| 16 | """ |
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| 17 | @cvar description: a longer human-readable name for the distro |
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| 18 | @type description: str |
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| 19 | @cvar distributor: a short lower-case identifier for the distro |
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| 20 | @type distributor: str |
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| 21 | @cvar release: the version of the distro |
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| 22 | @type release: str |
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| 23 | @cvar arch: the architecture of the distro |
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| 24 | @type arch: str |
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| 25 | """ |
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| 26 | description = None |
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| 27 | distributor = None |
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| 28 | release = None |
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| 29 | arch = None |
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| 30 | |
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| 31 | def __init__(self, description, distributor, release, arch): |
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| 32 | self.description = description |
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| 33 | self.distributor = distributor |
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| 34 | self.release = release |
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| 35 | self.arch = arch |
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| 36 | |
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| 37 | def atLeast(self, release): |
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| 38 | """ |
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| 39 | @param release: release to compare with |
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| 40 | @type release: str |
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| 41 | |
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| 42 | Returns: whether the distro is at least as new as the given release, |
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| 43 | taking non-numbers into account. |
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| 44 | """ |
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| 45 | mine = distutils.version.LooseVersion(self.release) |
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| 46 | theirs = distutils.version.LooseVersion(release) |
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| 47 | return mine >= theirs |
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| 48 | |
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| 49 | def getSysName(): |
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| 50 | """ |
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| 51 | Get the system name. Typically the first item in the os.uname tuple. |
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| 52 | """ |
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| 53 | return os.uname()[1] |
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| 54 | |
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| 55 | def getMachine(): |
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| 56 | """ |
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| 57 | Get the machine architecture. Typically the fifth item in os.uname. |
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| 58 | """ |
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| 59 | return os.uname()[4] |
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| 60 | |
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| 61 | def getDistroFromRelease(): |
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| 62 | """ |
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| 63 | Decide on the distro based on the presence of a distro-specific release |
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| 64 | file. |
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| 65 | |
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| 66 | rtype: L{Distro} or None. |
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| 67 | """ |
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| 68 | # start with lsb_release |
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| 69 | output = commands.getoutput("lsb_release -i") |
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| 70 | if output and output.startswith('Distributor ID:'): |
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| 71 | distributor = output.split(':', 2)[1].strip() |
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| 72 | output = commands.getoutput("lsb_release -d") |
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| 73 | description = output.split(':', 2)[1].strip() |
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| 74 | output = commands.getoutput("lsb_release -r") |
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| 75 | release = output.split(':', 2)[1].strip() |
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| 76 | |
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| 77 | return Distro(description, distributor, release, None) |
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