What happens to old repo links?

[Ulrich Spörlein]

Good point, https://github.com/freebsd/git_conv/issues/20

On Sun, Jul 12, 2020 at 6:25 AM Warner Losh <imp at bsdimp.com> wrote:

> Do we need to track this as an item in our github issues area? We don't
> really need the redirector until we turn off the current svn web server,
> which can run indefinitely with a read-only svn repo...
>
> Warner
>
> On Sat, Jul 11, 2020 at 3:41 AM Ulrich Spörlein <uqs at freebsd.org> wrote:
>
>> On Fri, 2020-07-10 at 20:52:35 -0400, Dan Langille wrote:
>> > Hello,
>> >
>> > At present, we have links to old commits, such as:
>> https://svnweb.freebsd.org/ports/head/graphics/mesa-devel/Makefile?annotate=537860
>> >
>> > In git, how will that work? How will we get to revision 537860?
>> >
>> > Similarly, for
>> https://svnweb.freebsd.org/ports?view=revision&revision=537860
>> >
>> > How will that work?
>> >
>> > Thank you.
>>
>> Someone will have to write a redirector that greps in the notes for the
>> hash of the corresponding SVN revision. Note that not all SVN revs are
>> present in git as such, as they might not make sense and have been
>> skipped.
>>
>> % git log --notes --grep=revision=537860\$ master
>> commit 69116835276115e2dbec1332f2070300e4905d76
>> Author: Jan Beich <jbeich at FreeBSD.org>
>> Date:   2020-06-04 00:49:09 +0000
>>
>>     graphics/mesa-devel: update to 20.1.b.1495
>>
>>     Changes:
>> https://gitlab.freedesktop.org/mesa/mesa/-/compare/fb62e642ae6...8252bb0ec6d
>>
>> Notes:
>>     svn path=/head/; revision=537860
>>
>>
>> So the redirector needs to run:
>> % git log --format=%H --notes --grep=revision=537860\$ master
>> 69116835276115e2dbec1332f2070300e4905d76
>>
>> and 301 to
>> https://cgit-beta.freebsd.org/ports/commit/?id=69116835276115e2dbec1332f2070300e4905d76
>> or
>>
>> https://cgit-beta.freebsd.org/ports/diff/graphics/mesa-devel/Makefile?id=69116835276115e2dbec1332f2070300e4905d76
>> depending on a file path being present or whatever.
>>
>> If a plugin in gitolite could do that translation, that would be great.
>>
>> hth
>> Uli
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>