Speed up CI with GitHub 'cache' action + ccache #2859
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This speeds up CI builds by 1/2 - 2/3 of total time, for PRs that are minor changes by reusing the compiled results from previous runs. Most of the remaining time cannot be squeezed down -- it's the instantiation of docker containers and running the testsuite itself. But the build (including of dependencies we build from scratch) is dramatically faster. Currently, this depends on ccache, so is for Linux/Mac only. I'm also working on doing something similar for Windows, but it's not ready for review yet.
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Feb 10, 2021
…ation#2859) This speeds up CI builds by 1/2 - 2/3 of total time, for PRs that are minor changes by reusing the compiled results from previous runs. Most of the remaining time cannot be squeezed down -- it's the instantiation of docker containers and running the testsuite itself. But the build (including of dependencies we build from scratch) is dramatically faster. Currently, this depends on ccache, so is for Linux/Mac only. I'm also working on doing something similar for Windows, but it's not ready for review yet.
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This speeds up CI builds by 1/2 - 2/3 of total time, for PRs that are
minor changes by reusing the compiled results from previous runs.
Most of the remaining time cannot be squeezed down -- it's the
instantiation of docker containers and running the testsuite
itself. But the build (including of dependencies we build from
scratch) is dramatically faster.
Currently, this depends on ccache, so is for Linux/Mac only. I'm also
working on doing something similar for Windows, but it's not ready for
review yet.