[darcs-users] Q: language-c upstream repo

[Ivan Zakharyaschev]

On Mon, 21 Dec 2015, Guillaume Hoffmann wrote:

> Indeed, "darcs convert" is sensitive to patch ordering, which is a
> problem in your case.

But isn't it a bug that some tags seem to be lost after the conversion? 
(As I have demonstrated below: the tags are present in the source darcs-1 
repo, but not in the result.)

> I know it's not really solving the problem but have you noticed that
> the user "visq" on hub.darcs.net is actually the maintainer of
> language-c ? (As I can see from the repo history
> http://code.haskell.org/language-c/_darcs/inventory ).  I guess you
> can make patches against the hub.darcs.net repo then.

Ok, thanks, I'll work it out somehow. I simply have already recorded some 
patches and have wondered about a simple way to transfer them to the 
darcs-2 repo (a clone of the URL above).

> 2015-12-21 7:26 GMT-03:00 Ivan Zakharyaschev <imz at altlinux.org>:
>> On Mon, 21 Dec 2015, Ivan Zakharyaschev wrote:
>>
>>> It looks like a bug in the darcs conversion in my case, because my darcs-2
>>> result of the conversion lacks some tags, which are present in the darcs-1
>>> source (and also in the hub darcs-2 repo). It's strange that the conversion
>>> once done for hub didn't have this problem.
>>>
>>> ~/TOOLS/prog/language-c.darcs-2 $ darcs show tags
>>> imz_init_typos-fixed
>>> 0.4.1
>>> 0.3.1
>>> $ cd ../language-c
>>> ~/TOOLS/prog/language-c $ darcs show tags
>>> imz_init_typos-fixed
>>> 0.4.1
>>> darcs_apply_bug
>>> 0.3.1
>>> 0.3
>>> 0.1
>>> ~/TOOLS/prog/language-c_hub $ darcs show tags
>>> 0.4.1
>>> darcs_apply_bug
>>> 0.3.1
>>> 0.3
>>> 0.1
>>>
>>> The conversion was done like this (with some warnings/error messages):
>>>
>>> ~/TOOLS/prog $ darcs convert darcs-2 language-c language-c.darcs-2
>>> WARNING: the repository produced by this command is not understood by
>>> Darcs 1.x, and patches cannot be exchanged between repositories in
>>> darcs-1 and darcs-2 formats.
>>>
>>> Furthermore, repositories created by different invocations of
>>> this command SHOULD NOT exchange patches.
>>>
>>> Please confirm that you have read and understood the above
>>> by typing `I understand the consequences of my action': I understand the
>>> consequences of my action
>>> lossy conversion:
>>> merger 0.0 (
>>> merger 0.0 (
>>> hunk ./src/Language/C/Data/Position.hs 115
>>> +-- | advance to the next row
>>> +incRow :: Position -> Position
>>> +incRow (Position o f r c) = Position o f (r + 1) c
>>> +incRow p                  = p
>>> hunk ./src/Language/C/Data/Position.hs 115
>>> +{-# INLINE adjustPos #-}
>>> +-- | adjust position: change file and line number, reseting column to 1.
>>> This is usually
>>> +--   used for #LINE pragmas. The absolute offset is not changed - this
>>> can be done
>>> +--   by @adjustPos newFile line . incPos (length pragma)@.
>>> +adjustPos :: FilePath -> Int -> Position -> Position
>>> +adjustPos fname row (Position offs _ _ _) = Position offs fname row 1
>>> +adjustPos _ _ p                           = p
>>> )
>>> hunk ./src/Language/C/Data/Position.hs 115
>>> --- | advance to the next row
>>> +-- | advance to the next row, this does not reset the column.  use
>>> +-- @retPos@ if that's what you want to do.
>>> )
>>> Finished converting.
>>>
>>>
>>
>> $ darcs --exact-version
>> darcs compiled on May 26 2015, at 04:18:50
>>
>> Context:
>>
>> [TAG 2.10.0
>> Guillaume Hoffmann <guillaumh at gmail.com>**20150419200705
>>  Ignore-this: 6d154c9aa51c8328c777ca9a2c223125
>> ]
>>
>> Compiled with:
>>
>> HTTP-4000.2.19
>> array-0.4.0.1
>> attoparsec-0.12.1.3
>> base-4.6.0.0
>> base16-bytestring-0.1.1.6
>> binary-0.7.3.0
>> bytestring-0.10.0.0
>> containers-0.5.0.0
>> cryptohash-0.11.6
>> data-ordlist-0.4.7.0
>> dataenc-0.14.0.4
>> directory-1.2.0.0
>> filepath-1.3.0.1
>> hashable-1.2.3.1
>> haskeline-0.7.2.1
>> html-1.0.1.2
>> mmap-0.5.8
>> mtl-2.2.1
>> network-2.4.2.3
>> old-locale-1.0.0.5
>> old-time-1.1.0.1
>> parsec-3.1.8
>> process-1.1.0.2
>> random-1.1
>> regex-applicative-0.3.1
>> regex-compat-tdfa-0.95.1.4
>> tar-0.4.0.1
>> terminfo-0.3.2.5
>> text-1.2.0.4
>> time-1.4.0.1
>> transformers-0.4.2.0
>> transformers-compat-0.4.0.4
>> unix-2.6.0.0
>> unix-compat-0.4.1.4
>> utf8-string-0.3.7
>> vector-0.10.0.1
>> zip-archive-0.2.3.7
>> zlib-0.5.4.0
>>
>>
>>
>> Best regards,
>> Ivan
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>
>