Correct versioning of unversioned source in git

Correct versioning of unversioned source in git

[Tomas Novotny]

	Hi all,

there is a recipe sunxi-board-fex in meta-sunxi layer. That recipe fetches
sources from unversioned git which contains definitions of some boards (in
fact it is something like a store).
	I'm not sure with correct versioning in OE. Is that:
PV = "1.0+git${SRCPV}"
SRCREV = "<some_gitrev_I_want>"
correct? Will be change of SRCREV (only) catched by build system (I'm curious
how OE handles age of the rev in git)?
	Or do I need to raise PV to 1.1 and so on with every change to SRCREV?
	Thanks,

	Tomas

Re: Correct versioning of unversioned source in git

[Koen Kooi]

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Hash: SHA1

Tomas Novotny schreef op 13-03-14 10:08:
> Hi all,
> 
> there is a recipe sunxi-board-fex in meta-sunxi layer. That recipe
> fetches sources from unversioned git which contains definitions of some
> boards (in fact it is something like a store). I'm not sure with correct
> versioning in OE. Is that: PV = "1.0+git${SRCPV}" SRCREV =
> "<some_gitrev_I_want>" correct? Will be change of SRCREV (only) catched
> by build system (I'm curious how OE handles age of the rev in git)? Or do
> I need to raise PV to 1.1 and so on with every change to SRCREV?

The answer changes if you have more than one buildhost. If you have only one
buildhost and don't care about other people rebuilding the exact same
versions, 1.0+git${SRCPV} will work.

If you have more than one buildhost and/or care about other people
rebuilding the exact same, you'll need to increase PR (or PV) everytime
SRCREV changes. That will still cause some discrepancies if someone rebuilds
after >1 SRCREV change, but upgrade paths should work when increasing PV
(not with PR!).

regards,

Koen

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Re: Correct versioning of unversioned source in git

[Paul Eggleton]

On Thursday 13 March 2014 10:59:38 Koen Kooi wrote:
> Tomas Novotny schreef op 13-03-14 10:08:
> > there is a recipe sunxi-board-fex in meta-sunxi layer. That recipe
> > fetches sources from unversioned git which contains definitions of some
> > boards (in fact it is something like a store). I'm not sure with correct
> > versioning in OE. Is that: PV = "1.0+git${SRCPV}" SRCREV =
> > "<some_gitrev_I_want>" correct? Will be change of SRCREV (only) catched
> > by build system (I'm curious how OE handles age of the rev in git)? Or do
> > I need to raise PV to 1.1 and so on with every change to SRCREV?
> 
> The answer changes if you have more than one buildhost. If you have only one
> buildhost and don't care about other people rebuilding the exact same
> versions, 1.0+git${SRCPV} will work.
> 
> If you have more than one buildhost and/or care about other people
> rebuilding the exact same, you'll need to increase PR (or PV) everytime
> SRCREV changes. That will still cause some discrepancies if someone rebuilds
> after >1 SRCREV change, but upgrade paths should work when increasing PV
> (not with PR!).

Why not with PR?

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre

Re: Correct versioning of unversioned source in git

[Koen Kooi]

Op 13 mrt. 2014, om 11:45 heeft Paul Eggleton <paul.eggleton@linux.intel.com> het volgende geschreven:

> On Thursday 13 March 2014 10:59:38 Koen Kooi wrote:
>> Tomas Novotny schreef op 13-03-14 10:08:
>>> there is a recipe sunxi-board-fex in meta-sunxi layer. That recipe
>>> fetches sources from unversioned git which contains definitions of some
>>> boards (in fact it is something like a store). I'm not sure with correct
>>> versioning in OE. Is that: PV = "1.0+git${SRCPV}" SRCREV =
>>> "<some_gitrev_I_want>" correct? Will be change of SRCREV (only) catched
>>> by build system (I'm curious how OE handles age of the rev in git)? Or do
>>> I need to raise PV to 1.1 and so on with every change to SRCREV?
>> 
>> The answer changes if you have more than one buildhost. If you have only one
>> buildhost and don't care about other people rebuilding the exact same
>> versions, 1.0+git${SRCPV} will work.
>> 
>> If you have more than one buildhost and/or care about other people
>> rebuilding the exact same, you'll need to increase PR (or PV) everytime
>> SRCREV changes. That will still cause some discrepancies if someone rebuilds
>> after >1 SRCREV change, but upgrade paths should work when increasing PV
>> (not with PR!).
> 
> Why not with PR?

because SRCPV in in PV, not PR

> 
> Cheers,
> Paul
> 
> -- 
> 
> Paul Eggleton
> Intel Open Source Technology Centre
> 

Re: Correct versioning of unversioned source in git

[Paul Eggleton]

On Thursday 13 March 2014 12:09:21 Koen Kooi wrote:
> Op 13 mrt. 2014, om 11:45 heeft Paul Eggleton 
<paul.eggleton@linux.intel.com> het volgende geschreven:
> > On Thursday 13 March 2014 10:59:38 Koen Kooi wrote:
> >> Tomas Novotny schreef op 13-03-14 10:08:
> >>> there is a recipe sunxi-board-fex in meta-sunxi layer. That recipe
> >>> fetches sources from unversioned git which contains definitions of some
> >>> boards (in fact it is something like a store). I'm not sure with correct
> >>> versioning in OE. Is that: PV = "1.0+git${SRCPV}" SRCREV =
> >>> "<some_gitrev_I_want>" correct? Will be change of SRCREV (only) catched
> >>> by build system (I'm curious how OE handles age of the rev in git)? Or
> >>> do
> >>> I need to raise PV to 1.1 and so on with every change to SRCREV?
> >> 
> >> The answer changes if you have more than one buildhost. If you have only
> >> one buildhost and don't care about other people rebuilding the exact
> >> same versions, 1.0+git${SRCPV} will work.
> >> 
> >> If you have more than one buildhost and/or care about other people
> >> rebuilding the exact same, you'll need to increase PR (or PV) everytime
> >> SRCREV changes. That will still cause some discrepancies if someone
> >> rebuilds after >1 SRCREV change, but upgrade paths should work when
> >> increasing PV (not with PR!).
> > 
> > Why not with PR?
> 
> because SRCPV in in PV, not PR

Right, but if you're using the PR server, that also stores the incrementing 
number at the start of SRCPV; PR may also increment when SRCREV changes as 
well (not sure on the latter). The PR server ought to be used if you care 
about this sort of thing.

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre

Re: Correct versioning of unversioned source in git

[Koen Kooi]

Op 13 mrt. 2014, om 12:14 heeft Paul Eggleton <paul.eggleton@linux.intel.com> het volgende geschreven:

> On Thursday 13 March 2014 12:09:21 Koen Kooi wrote:
>> Op 13 mrt. 2014, om 11:45 heeft Paul Eggleton 
> <paul.eggleton@linux.intel.com> het volgende geschreven:
>>> On Thursday 13 March 2014 10:59:38 Koen Kooi wrote:
>>>> Tomas Novotny schreef op 13-03-14 10:08:
>>>>> there is a recipe sunxi-board-fex in meta-sunxi layer. That recipe
>>>>> fetches sources from unversioned git which contains definitions of some
>>>>> boards (in fact it is something like a store). I'm not sure with correct
>>>>> versioning in OE. Is that: PV = "1.0+git${SRCPV}" SRCREV =
>>>>> "<some_gitrev_I_want>" correct? Will be change of SRCREV (only) catched
>>>>> by build system (I'm curious how OE handles age of the rev in git)? Or
>>>>> do
>>>>> I need to raise PV to 1.1 and so on with every change to SRCREV?
>>>> 
>>>> The answer changes if you have more than one buildhost. If you have only
>>>> one buildhost and don't care about other people rebuilding the exact
>>>> same versions, 1.0+git${SRCPV} will work.
>>>> 
>>>> If you have more than one buildhost and/or care about other people
>>>> rebuilding the exact same, you'll need to increase PR (or PV) everytime
>>>> SRCREV changes. That will still cause some discrepancies if someone
>>>> rebuilds after >1 SRCREV change, but upgrade paths should work when
>>>> increasing PV (not with PR!).
>>> 
>>> Why not with PR?
>> 
>> because SRCPV in in PV, not PR
> 
> Right, but if you're using the PR server, that also stores the incrementing 
> number at the start of SRCPV; PR may also increment when SRCREV changes as 
> well (not sure on the latter). The PR server ought to be used if you care 
> about this sort of thing.

Only if your PR server is publicly available *and* you have network access during the build. There is currently no workable way to get versioning info to users trying to rebuild something. The closest I've been to a solution is to ship prserv-tool exports in git.

regards,

Koen

Re: Correct versioning of unversioned source in git

[Paul Eggleton]

On Thursday 13 March 2014 12:17:40 Koen Kooi wrote:
> Op 13 mrt. 2014, om 12:14 heeft Paul Eggleton 
<paul.eggleton@linux.intel.com> het volgende geschreven:
> > On Thursday 13 March 2014 12:09:21 Koen Kooi wrote:
> >> Op 13 mrt. 2014, om 11:45 heeft Paul Eggleton
> > 
> > <paul.eggleton@linux.intel.com> het volgende geschreven:
> >>> On Thursday 13 March 2014 10:59:38 Koen Kooi wrote:
> >>>> Tomas Novotny schreef op 13-03-14 10:08:
> >>>>> there is a recipe sunxi-board-fex in meta-sunxi layer. That recipe
> >>>>> fetches sources from unversioned git which contains definitions of
> >>>>> some
> >>>>> boards (in fact it is something like a store). I'm not sure with
> >>>>> correct
> >>>>> versioning in OE. Is that: PV = "1.0+git${SRCPV}" SRCREV =
> >>>>> "<some_gitrev_I_want>" correct? Will be change of SRCREV (only)
> >>>>> catched
> >>>>> by build system (I'm curious how OE handles age of the rev in git)? Or
> >>>>> do
> >>>>> I need to raise PV to 1.1 and so on with every change to SRCREV?
> >>>> 
> >>>> The answer changes if you have more than one buildhost. If you have
> >>>> only
> >>>> one buildhost and don't care about other people rebuilding the exact
> >>>> same versions, 1.0+git${SRCPV} will work.
> >>>> 
> >>>> If you have more than one buildhost and/or care about other people
> >>>> rebuilding the exact same, you'll need to increase PR (or PV) everytime
> >>>> SRCREV changes. That will still cause some discrepancies if someone
> >>>> rebuilds after >1 SRCREV change, but upgrade paths should work when
> >>>> increasing PV (not with PR!).
> >>> 
> >>> Why not with PR?
> >> 
> >> because SRCPV in in PV, not PR
> > 
> > Right, but if you're using the PR server, that also stores the
> > incrementing
> > number at the start of SRCPV; PR may also increment when SRCREV changes as
> > well (not sure on the latter). The PR server ought to be used if you care
> > about this sort of thing.
> 
> Only if your PR server is publicly available *and* you have network access
> during the build. There is currently no workable way to get versioning info
> to users trying to rebuild something. The closest I've been to a solution
> is to ship prserv-tool exports in git.

If you're saying you want something that doesn't require network access, gets 
the right answer for all users *and* automatically increments when something 
changes - those are conflicting requirements...

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre

Re: Correct versioning of unversioned source in git

[Koen Kooi]

Op 13 mrt. 2014, om 12:54 heeft Paul Eggleton <paul.eggleton@linux.intel.com> het volgende geschreven:

> On Thursday 13 March 2014 12:17:40 Koen Kooi wrote:
>> Op 13 mrt. 2014, om 12:14 heeft Paul Eggleton 
> <paul.eggleton@linux.intel.com> het volgende geschreven:
>>> On Thursday 13 March 2014 12:09:21 Koen Kooi wrote:
>>>> Op 13 mrt. 2014, om 11:45 heeft Paul Eggleton
>>> 
>>> <paul.eggleton@linux.intel.com> het volgende geschreven:
>>>>> On Thursday 13 March 2014 10:59:38 Koen Kooi wrote:
>>>>>> Tomas Novotny schreef op 13-03-14 10:08:
>>>>>>> there is a recipe sunxi-board-fex in meta-sunxi layer. That recipe
>>>>>>> fetches sources from unversioned git which contains definitions of
>>>>>>> some
>>>>>>> boards (in fact it is something like a store). I'm not sure with
>>>>>>> correct
>>>>>>> versioning in OE. Is that: PV = "1.0+git${SRCPV}" SRCREV =
>>>>>>> "<some_gitrev_I_want>" correct? Will be change of SRCREV (only)
>>>>>>> catched
>>>>>>> by build system (I'm curious how OE handles age of the rev in git)? Or
>>>>>>> do
>>>>>>> I need to raise PV to 1.1 and so on with every change to SRCREV?
>>>>>> 
>>>>>> The answer changes if you have more than one buildhost. If you have
>>>>>> only
>>>>>> one buildhost and don't care about other people rebuilding the exact
>>>>>> same versions, 1.0+git${SRCPV} will work.
>>>>>> 
>>>>>> If you have more than one buildhost and/or care about other people
>>>>>> rebuilding the exact same, you'll need to increase PR (or PV) everytime
>>>>>> SRCREV changes. That will still cause some discrepancies if someone
>>>>>> rebuilds after >1 SRCREV change, but upgrade paths should work when
>>>>>> increasing PV (not with PR!).
>>>>> 
>>>>> Why not with PR?
>>>> 
>>>> because SRCPV in in PV, not PR
>>> 
>>> Right, but if you're using the PR server, that also stores the
>>> incrementing
>>> number at the start of SRCPV; PR may also increment when SRCREV changes as
>>> well (not sure on the latter). The PR server ought to be used if you care
>>> about this sort of thing.
>> 
>> Only if your PR server is publicly available *and* you have network access
>> during the build. There is currently no workable way to get versioning info
>> to users trying to rebuild something. The closest I've been to a solution
>> is to ship prserv-tool exports in git.
> 
> If you're saying you want something that doesn't require network access, gets 
> the right answer for all users *and* automatically increments when something 
> changes - those are conflicting requirements...

I know, that's why putting SRCPV in PV instead of PR is such a massive pain :/

Re: Correct versioning of unversioned source in git

[Tomas Novotny]

On Thu, 13 Mar 2014 10:59:38 +0100, Koen Kooi <koen@dominion.thruhere.net>
wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Tomas Novotny schreef op 13-03-14 10:08:
> > Hi all,
> > 
> > there is a recipe sunxi-board-fex in meta-sunxi layer. That recipe
> > fetches sources from unversioned git which contains definitions of some
> > boards (in fact it is something like a store). I'm not sure with correct
> > versioning in OE. Is that: PV = "1.0+git${SRCPV}" SRCREV =
> > "<some_gitrev_I_want>" correct? Will be change of SRCREV (only) catched
> > by build system (I'm curious how OE handles age of the rev in git)? Or do
> > I need to raise PV to 1.1 and so on with every change to SRCREV?
> 
> The answer changes if you have more than one buildhost. If you have only one
> buildhost and don't care about other people rebuilding the exact same
> versions, 1.0+git${SRCPV} will work.
> 
> If you have more than one buildhost and/or care about other people
> rebuilding the exact same, you'll need to increase PR (or PV) everytime
> SRCREV changes. That will still cause some discrepancies if someone rebuilds
> after >1 SRCREV change, but upgrade paths should work when increasing PV
> (not with PR!).

Thanks for the explanation, I will use the latter option.

Tomas

Re: Correct versioning of unversioned source in git

[Mike Looijmans]

On 03/13/2014 12:54 PM, Paul Eggleton wrote:
> On Thursday 13 March 2014 12:17:40 Koen Kooi wrote:
>> Op 13 mrt. 2014, om 12:14 heeft Paul Eggleton
> <paul.eggleton@linux.intel.com> het volgende geschreven:
>>> On Thursday 13 March 2014 12:09:21 Koen Kooi wrote:
>>>> Op 13 mrt. 2014, om 11:45 heeft Paul Eggleton
>>>
>>> <paul.eggleton@linux.intel.com> het volgende geschreven:
>>>>> On Thursday 13 March 2014 10:59:38 Koen Kooi wrote:
>>>>>> Tomas Novotny schreef op 13-03-14 10:08:
>>>>>>> there is a recipe sunxi-board-fex in meta-sunxi layer. That recipe
>>>>>>> fetches sources from unversioned git which contains definitions of
>>>>>>> some
>>>>>>> boards (in fact it is something like a store). I'm not sure with
>>>>>>> correct
>>>>>>> versioning in OE. Is that: PV = "1.0+git${SRCPV}" SRCREV =
>>>>>>> "<some_gitrev_I_want>" correct? Will be change of SRCREV (only)
>>>>>>> catched
>>>>>>> by build system (I'm curious how OE handles age of the rev in git)? Or
>>>>>>> do
>>>>>>> I need to raise PV to 1.1 and so on with every change to SRCREV?
>>>>>>
>>>>>> The answer changes if you have more than one buildhost. If you have
>>>>>> only
>>>>>> one buildhost and don't care about other people rebuilding the exact
>>>>>> same versions, 1.0+git${SRCPV} will work.
>>>>>>
>>>>>> If you have more than one buildhost and/or care about other people
>>>>>> rebuilding the exact same, you'll need to increase PR (or PV) everytime
>>>>>> SRCREV changes. That will still cause some discrepancies if someone
>>>>>> rebuilds after >1 SRCREV change, but upgrade paths should work when
>>>>>> increasing PV (not with PR!).
>>>>>
>>>>> Why not with PR?
>>>>
>>>> because SRCPV in in PV, not PR
>>>
>>> Right, but if you're using the PR server, that also stores the
>>> incrementing
>>> number at the start of SRCPV; PR may also increment when SRCREV changes as
>>> well (not sure on the latter). The PR server ought to be used if you care
>>> about this sort of thing.
>>
>> Only if your PR server is publicly available *and* you have network access
>> during the build. There is currently no workable way to get versioning info
>> to users trying to rebuild something. The closest I've been to a solution
>> is to ship prserv-tool exports in git.
>
> If you're saying you want something that doesn't require network access, gets
> the right answer for all users *and* automatically increments when something
> changes - those are conflicting requirements...

"gitpkgv" from mete-openembedded has been doing a good job at that for me in 
several projects. It just counts the number of git commits and uses that as 
counter. Everybody thus sees the same number, versions are incremental, and no 
server access needed during build.


My only wish would be that this were in oe-core.





Met vriendelijke groet / kind regards,

Mike Looijmans

TOPIC Embedded Systems
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