On 2016-03-10 14:51, Martin Jansa wrote:
On Thu, Mar 10, 2016 at 02:21:42PM +0100, Gary Thomas wrote:
If I have a package X that depends on X-native and they build
from the same sources, doesn't the fetch step duplicate effort
if the sources need to be downloaded from scratch? I just saw
this [appear to] happen and it's not clear if the sources were
downloaded once or twice.
The first one should create the lock file and second fetch task should
just reuse the already downloaded source.
Otherwise sharing whole downloads directory between multiple builders
wouldn't work as well.
That's great, thanks
I this is the case, perhaps if X depends on X-native then X.fetch
should depend on X-native.fetch so then download happens only once?
Or is that too hard to detect?
For many packages (and fast network links) this probably isn't an
issue, but I could imagine some very large packages simply wasting
network bandwidth.
Note: I'm happy if I'm wrong about this, it just jumped out at me.
--
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Gary Thomas | Consulting for the
MLB Associates | Embedded world
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