Faster submodule updating #49057
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Faster submodule updating #49057
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rust-highfive
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What is the tradeoff here? That we won't clean out submodules if they have untracked files? |
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Yeah, they won't get cleaned by default, only when the submodule commit is outdated and the submodule updates. |
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That seems fine to me. I'm generally okay with this change then. |
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@bors: r+ rollup Nice! |
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📌 Commit 72cb109 has been approved by |
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kennytm
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Mar 17, 2018
Faster submodule updating For the common case when there are no submodules which need updating, this takes 0.48 seconds instead of 47 seconds. r? @alexcrichton
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I’m late to the party, but another reason to support this change: I was once surprised (and annoyed) to see the build system silently erase uncommitted local changes that I had just made to a submodule. Fortunately I still had those files open in my text editor, but silent data loss is really not good. |
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@SimonSapin That can still happen though if you pull master and the submodule was updated. |
jyn514
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May 24, 2022
I don't know why anyone would turn this off; doing so makes builds much slower (nearly a 60x slowdown according to rust-lang#49057). Remove the option to do so, which makes bootstrap a little easier to maintain. Bootstrap continues to allow you to manage submodules manually by setting `submodules = false`.
JohnTitor
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…lacrum Turn on `fast_submodules` unconditionally I don't know why anyone would turn this off; doing so makes builds much slower (nearly a 60x slowdown according to rust-lang#49057). Remove the option to do so, which makes bootstrap a little easier to maintain. Bootstrap continues to allow you to manage submodules manually by setting `submodules = false`.
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For the common case when there are no submodules which need updating, this takes 0.48 seconds instead of 47 seconds.
r? @alexcrichton