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Extract DRBD related tests
As the DRBD code was extracted from bdev.py, the corresponding testsshould as well be extracted into their own file. That's what this patchperforms.
Signed-off-by: Thomas Thrainer <thomasth@google.com>Signed-off-by: Michele Tartara <mtartara@google.com>...
Extract command generation logic from DRBD8
In order to easily support the DRBD 8.4 command syntax, this patchextracts all command generation logic (i.e. where calls to `drbdsetup`are assembled) into a new class DRBD83CmdGenerator.
Signed-off-by: Thomas Thrainer <thomasth@google.com>...
Add `drbdsetup show` parser for DRBD 8.4
Common functionality between the DRBD 8.3 and DRBD 8.4 parser has beenextracted into BaseShowInfo. A test which verifies the behaviour isincluded, but the DRBD84ShowInfo class is not yet used within the DRBD8class....
Extract DRBD info parsing into drbd_info.py
Parsing the status (/proc/drbd) and `drbdsetup show` output takes quitea bit of code, which has to be augmented by even more with the DRBD 8.4support. So extract all the related classes into their own file.
Extract DRBD8ShowInfo class
This class parses the `drbdsetup show` output and represents it in aneasily accessible format. It got extracted so that 1) the DRBD8 classcan focus more on DRBD logic rather than parsing and 2) it's easier toadapt the parser to new formats....
Add test for DRBD 8.4 /proc/drbd parsing
The current parser already supports the output of DRBD 8.4 /proc/drbd,so add tests which actually verify this behaviour.Note that the empty lines in proc_drbd84.txt are actually present in theoutput of DRBD 8.4, they always appear when minors are not contiguous....
Add test for empty version in /proc/drbd
The previous patch removed a (rather implicit) test for /proc/drbd notcontaining a version line. This adds an explicit test for this case.
Extract /proc/drbd parsing code into DRBD8Info
As the DRBD8 class got bigger due to the previous merge of BaseDRBD, nowparts of it are ripped out into DRBD8Info. This new class parses/proc/drbd and exposes the information in an easily accessible way. This...
Remove BaseDRBD
BaseDRBD was probably useful when DRBD 0.7 and DRBD 8 were supported.However, there is only one subclass of BaseDRBD remaining (DRBD8), andthe separation of responsibilities between those two classes was ratherrandomly chosen.
The unification into one class also eases the introduction of...
Rename _MassageProcData to _JoinProcDataPerMinor
That's what the method actually does, so there is no reason why weshould use a funny but unreadable name.
Extract DRBD-related classes into block/drbd.py
This is in preparation to introducing support for DRBD8.4.base.py had to be extracted as well in order to avoid cylic importsbetween bdev.py and drbd.py. It now contains the BlockDev class andutility functions needed by bdev.py and drbd.py....
Move lib/bdev.py to lib/block/bdev.py
That's in preparation of extracting DRBD related code from bdev.py. Asbdev.py is already rather long, new features will require to split itinto more manageable pieces. That's why it's moved in an own directory.