From: Stephen Leake <stephen_leake@stephe-leake.org>
Subject: Re: yet another Ada web site?
Date: Fri, 14 Oct 2022 04:19:05 -0700 [thread overview]
Message-ID: <8635bqveja.fsf@stephe-leake.org> (raw)
In-Reply-To: tibc8b$8q6$1@gioia.aioe.org
"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:
> On 2022-10-14 10:41, Fabien Chouteau wrote:
>> On Thursday, October 13, 2022 at 8:58:20 AM UTC+2, Dmitry A. Kazakov wrote:
>>> It seems so. Multiple versions at once are not supported. E.g. when you
>>> are working on two projects both dependent on different versions of
>>> another project:
>>>
>>> B -> A.1
>>> C -> A.2
>> Yes of course, different crates can depend on different version of
>> the same crate.
>
> It is about whether both A's can be installed and coexist on the same
> machine.
In Alire, "installed" means "checked out the source code into a local
directory".
If A depends on a system library that is a shared object file, and those
are different versions, then it depends on the OS; Debian can handle
this nicely, Windows only via separate directories and search paths.
>>> Or even the same project, e.g. when doing some migration from one
>>> version to another.
>> Not sure how you would do that? Link two different version of the
>> same library in an executable? That's not going to work.
>
> Same as above. You have B.1 -> A.1 and B.* -> A.2. You want to install
> both A.1 and A.2 and work on B.* while checking on B.1.
And the solution is the same as well.
> In the long gone time of common sense, a project code management
> system would use a virtual file system and map different parts of the
> projects graph onto a structure of folders arranged by versions.
What prevents that now?
--
-- Stephe
next prev parent reply other threads:[~2022-10-14 11:19 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-25 10:01 yet another Ada web site? Maxim Reznik
2022-08-26 18:58 ` Paul Rubin
2022-08-27 9:12 ` Rene
2022-08-27 9:53 ` Nasser M. Abbasi
2022-08-28 7:21 ` Simon Wright
2022-08-28 7:50 ` Dmitry A. Kazakov
2022-08-28 10:26 ` Luke A. Guest
2022-09-16 15:25 ` Maxim Reznik
2022-09-16 17:07 ` Luke A. Guest
2022-09-16 17:34 ` Stephen Leake
2022-09-16 18:45 ` Jere
2022-09-17 9:45 ` Luke A. Guest
2022-09-16 18:49 ` Jere
2022-09-17 13:08 ` Move semantics (was: yet another Ada web site?) G.B.
2022-09-19 17:04 ` Move semantics Stephen Leake
2022-09-19 18:50 ` Paul Rubin
2022-09-20 11:44 ` AdaMagica
2022-09-20 14:46 ` Niklas Holsti
2022-09-20 19:39 ` Paul Rubin
2022-09-24 6:54 ` Stephen Leake
2022-09-18 8:47 ` yet another Ada web site? grosdan
2022-09-18 10:57 ` Dmitry A. Kazakov
2022-09-18 16:28 ` Luke A. Guest
2022-09-19 17:02 ` Stephen Leake
2022-09-19 6:39 ` Emmanuel Briot
2022-09-30 10:29 ` shtps
2022-09-30 12:29 ` Niklas Holsti
2022-10-09 16:13 ` Stephen Leake
2022-10-12 4:21 ` Paul Jarrett
2022-10-13 0:06 ` Stephen Leake
2022-10-13 6:58 ` Dmitry A. Kazakov
2022-10-14 8:41 ` Fabien Chouteau
2022-10-14 10:05 ` Dmitry A. Kazakov
2022-10-14 11:19 ` Stephen Leake [this message]
2022-10-14 13:05 ` Dmitry A. Kazakov
2022-10-16 8:54 ` G.B.
2022-10-16 9:20 ` Dmitry A. Kazakov
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