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On 07/07/2018 11:53 PM, Michał Górny wrote: |
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> Dnia 8 lipca 2018 08:08:31 CEST, Zac Medico <zmedico@g.o> napisał(a): |
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>> Please review. |
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>> |
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>> Title: Portage rsync hardlink support |
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>> Author: Zac Medico <zmedico@g.o> |
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>> Posted: 2018-07-11 |
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>> Revision: 1 |
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>> News-Item-Format: 2.0 |
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>> Display-If-Installed: sys-apps/portage |
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>> |
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>> For users of the rsync tree, beginning with sys-apps/portage-2.3.42, |
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>> the default behavior for sync operations will use hardlinks in order |
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>> to ensure that a repository remains in a valid state if something |
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>> goes wrong [1]. For example, if signature verification fails during a |
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>> sync operation, the new hardlink behavior will preserve the previous |
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>> state of the repository. |
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>> |
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>> The new behavior may conflict with configurations that restrict the |
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>> use of hardlinks, such as overlay filesystems. Therefore, users will |
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>> have to set "sync-allow-hardlinks = no" in repos.conf if they have |
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>> a configuration that restricts the use of hardlinks, but this should |
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>> not be very common: |
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>> |
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>> [DEFAULT] |
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>> sync-allow-hardlinks = no |
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>> |
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>> [1] https://bugs.gentoo.org/660410 sys-apps/portage: use rsync |
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>> --link-dest to implement atomic repository updates (and abort if |
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>> signature verification fails) |
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> |
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> Is safe git syncing implemented already? If not, maybe finish it first and cover both with a single news item. Git is going to be more efficient here, so people may want to learn they have an alternative. |
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|
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Yeah there's already a patch for git sync [1] but I'd rather not make |
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this news item more complicated than it needs to be. I wouldn't have |
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bothered with a news item except that I want to give people some warning |
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in case they are using overlayfs [2]. I think the efficiency difference |
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between rsync and git here are pretty negligible for most people. |
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|
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[1] https://bugs.gentoo.org/660372 |
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[2] |
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https://www.brunsware.de/blog/gentoo/portage-tree-squashfs-overlayfs.html |
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-- |
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Thanks, |
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Zac |
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