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destroyedlolo
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Joined: 17 Jun 2011
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Location: Close to Annecy (France)
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 Posted: Tue Mar 20, 2018 4:59 pm Post subject: Any advices to have several Lua version on Gentoo |
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Hello,
I've created several tools related to home automation that use Lua as embedded language (majors ones are Marcel and Selene). They are using Lua 5.1.5.
I'm on way to do some big changes and especially move them to latest 5.4 (which seems not yet packaged for Gentoo but it's another story).
So, is it possible to have 2 differents packaged Lua version on a system, and if so, is it possible to switch an interactive shell to the newer version with disturbing the rest of the system (I think eselect switch globally) ?
Thanks
Last edited by destroyedlolo on Tue Mar 20, 2018 7:09 pm; edited 1 time in total |
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Zucca
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Joined: 14 Jun 2007
Posts: 3345
Location: Rasi, Finland
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| Posted: Tue Mar 20, 2018 5:04 pm Post subject: |
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Yes. Lua packages have been slotted. With eselect you chose the default interpreter.
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fedeliallalinea
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Joined: 08 Mar 2003
Posts: 30917
Location: here
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| Posted: Tue Mar 20, 2018 5:09 pm Post subject: |
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| Zucca wrote: | | Yes. Lua packages have been slotted. With eselect you chose the default interpreter. |
That's true but for moment only 5.1.4-r4 isn't hard masked
| Code: | [I] dev-lang/lua
Available versions:
(0) 5.1.5-r4
(5.1) [M]~5.1.5-r100 [M]~5.1.5-r101
(5.2) [M]~5.2.3 [M]~5.2.3-r1 [M]~5.2.3-r2
(5.3) [M]~5.3.3 [M]~5.3.3-r1
{+deprecated emacs readline static ABI_MIPS="n32 n64 o32" ABI_PPC="32 64" ABI_S390="32 64" ABI_X86="32 64 x32"}
Installed versions: 5.1.5-r4(19:24:00 05. 01. 18)(deprecated readline -emacs -static ABI_MIPS="-n32 -n64 -o32" ABI_PPC="-32 -64" ABI_S390="-32 -64" ABI_X86="64 -32 -x32")
Homepage: http://www.lua.org/
Description: A powerful light-weight programming language designed for extending applications |
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Zucca
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Location: Rasi, Finland
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| Posted: Tue Mar 20, 2018 6:48 pm Post subject: |
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Oh. I forgot... My bad.
By reading the package.mask from portage tree... I'm not sure why the mask has been set.
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Gentoo IRC channels reside on Libera.Chat.
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fedeliallalinea
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| Posted: Tue Mar 20, 2018 6:54 pm Post subject: |
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| Zucca wrote: | | By reading the package.mask from portage tree... I'm not sure why the mask has been set. |
| /usr/portage/profiles/package.mask: | # Matti Bickel <mabi@gentoo.org> (22 Apr 2014)
# Masked slotted lua for testing
# William Hubbs <williamh@gentoo.org> (07 Aug 2016)
# Taking this mask since Mabi is retired
# Rafael Martins <rafaelmartins@gentoo.org> (04 Dec 2016)
# Adding Lua 5.3 to mask
app-eselect/eselect-lua
=dev-lang/lua-5.1.5-r2
=dev-lang/lua-5.1.5-r100
=dev-lang/lua-5.1.5-r101
=dev-lang/lua-5.2.3
=dev-lang/lua-5.2.3-r1
=dev-lang/lua-5.2.3-r2
=dev-lang/lua-5.3.3
=dev-lang/lua-5.3.3-r1
# Samuli Suominen <ssuominen@gentoo.org> (06 Mar 2012)
# Masked for testing since this is known to break nearly
# every reverse dependency wrt bug 407091
>=dev-lang/lua-5.2.0 |
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Mr. T.
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Joined: 26 Dec 2016
Posts: 477
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| Posted: Tue Mar 20, 2018 7:06 pm Post subject: |
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Hey!
| lua.org wrote: | | Work on Lua 5.4 has begun but there is no release date yet nor a roadmap. If you want to try it now, get the latest work version. Note that all details may change in the final version. |
P.S: There is a typo in the title of the thread: Any advices...
Edit: See also bug 407091
helecho |
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Zucca
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Location: Rasi, Finland
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| Posted: Tue Mar 20, 2018 7:37 pm Post subject: |
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For some reason I missed the bug number first time I read the file. :P
But yeah, Gentoo is lagging behind with lua packages. Hopefully they'll resolve the bug soon.
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destroyedlolo
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Joined: 17 Jun 2011
Posts: 846
Location: Close to Annecy (France)
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| Posted: Tue Mar 20, 2018 7:50 pm Post subject: |
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Speaking about "Masking" : I've checked, on my smart home system, only GVIM has a dependancy on Lua and if it causes issue, I can disable it.
[quote="helecho"] | lua.org wrote: | | Work on Lua 5.4 has begun but there is no release date yet nor a roadmap. If you want to try it now, get the latest work version. Note that all details may change in the final version. |
Yes, I know 
But taking in account the time I'll have to spend on my own migration (because there is lot of changes b/w 5.1 and >= 5.2 API), 5.4 will be released.
| helecho wrote: | | P.S: There is a typo in the title of the thread: advices |
Corrected 
Another question : without a "patch", Lua is not multi-thread compliant, and, frankly speaking, having multiple Lua's State in a program creates lot of side effect (i.e : strings can't be compared).
So, do someone already created this patch ? (Lua's website provides only an example for m$-windows).
If so, what about adding a "USE" flag "multi-thread" to enable this patch ?
Bye
Laurent |
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