A flaw in the Daily Builds PPA concept

[Max Bowsher]

On 10/02/11 08:40, Jelmer Vernooij wrote:
> bOn Thu, 2011-02-10 at 08:17 +0000, Max Bowsher wrote:
>> I've just realized a flaw in the Daily Builds PPA conceptually...
>>
>> It tries daily builds of bzr core, and of plugins, into the same PPA.
>>
>> Once you do a daily build of bzr.dev, it's incompatible with the trunk
>> of most plugins. Oops.

> In what way do you mean? We should deprecate APIs first if they're used
> by plugins, so a daily build of a newer revision of bzr.dev shouldn't be
> able to break plugins.

The breakage occurs for plugins that could probably work fine with
bzr.dev, but declare a strict API requirement otherwise. The strict API
requirement will usually be echoed in debian/control Build-Depends such
that the package never actually builds at all.

> Besides one of the goals of the PPA being to provide nightly builds for
> users, it's also to make sure that the packaging is complete (all
> dependencies present, testsuite passing, etc).

Agreed, it's great for detecting bugs in the packaging of plugins
themselves, but we don't want failed builds just because plugins' trunks
haven't been marked as compatible with the latest incarnation of bzr.dev
yet, because that will swamp us in irritating build failures which
distract from real issues.

Max.

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