Hi Pieter, Le mer. 12 sept. 2018 à 15:20, Pieter Smith <[email protected]> a écrit : > > Hi all, > > I would like to extend the OpenWRT build system to allow a substantial > speed-up with optional pre-built binary injection. The goal is to > perform the full distro build including toolchain in less than 10 min > for the product that we develop. > > My proposal is to augment the build so that build results can optionally > be published of fetched. Locally compiled build results can be published > for potential fetch and injection on future builds by other developers > or build slaves. > > Above all the implementation should guarantee repeatability and > consistency. A fetch and inject speed up will only be allowed if it does > not violate this requirement. > > So far I have come up with the idea to guarantee this by publishing > build results under a strong hash (sha1 or better). The hash is > based on the source state of what needs to be built, and the hashes of > all dependencies and configuration leading up to that (Something similar > to what git does to calculate a commit id). > > If the calculated hash for what has to be built can be fetched and > injected, consistency is guaranteed and the speedup is safe. If the > calculated hash has not been built before, the build step is performed > and the result is published under the calculated hash. > > Can anyone comment on the above? > > Regards, > Pieter Smith > > P.S. If I missed something existing that can already achieve some of the > build speed-up, please let me know.
Never tried it myself, but have you tried ccache ? Regards Etienne > _______________________________________________ > openwrt-devel mailing list > [email protected] > https://lists.openwrt.org/mailman/listinfo/openwrt-devel _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/mailman/listinfo/openwrt-devel
