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Incremental builds across different ios_cpu #370

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mrdomino opened this issue Aug 11, 2015 · 6 comments
Closed

Incremental builds across different ios_cpu #370

mrdomino opened this issue Aug 11, 2015 · 6 comments
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@jmmv
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category: rules > ObjC / iOS / J2ObjC P4 This is either out of scope or we don't have bandwidth to review a PR. (No assignee) platform: apple team-Configurability platforms, toolchains, cquery, select(), config transitions type: feature request

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@mrdomino
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When I script bazel to build a fat objc_library, I appear to lose all build incrementality, probably because it gets reset per ios_cpu. This causes nothing-changed builds to take upwards of a minute where they'd ortherwise take less than a second.

Maybe this overlaps with some other issue or some work on the roadmap that will render this obsolete -- if so, then please close this issue and don't let it distract. :)
@laszlocsomor
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Peter, could you comment?

@kchodorow kchodorow assigned c-parsons and unassigned aragos Aug 17, 2015
@kchodorow
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Assigning to Chris, since Peter's on vacation.

@mrdomino mrdomino mentioned this issue Oct 15, 2015
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@damienmg damienmg added type: feature request P4 This is either out of scope or we don't have bandwidth to review a PR. (No assignee) mobile labels Nov 17, 2015
@aragos aragos assigned jmmv and unassigned c-parsons Dec 7, 2016
@aragos aragos added this to the 0.5 milestone Dec 7, 2016
@jmmv
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jmmv commented Dec 12, 2016

The current theory here is that we lose the in-memory metadata for all files in the action cache, and thus the incremental build has to recompute their digests, which is costly. There may be other things at play here. The plan is to get this fixed by next quarter.

@hlopko
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hlopko commented Apr 10, 2017

Hello Julio, is this still expected to be fixed in 0.5? We're still at least 2 weeks away from the release but we should be getting ready.

@damienmg
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Julio is on holiday, moving to 0.6

@damienmg damienmg modified the milestones: 0.6, 0.5 Apr 11, 2017
@jin jin modified the milestones: 0.6, 0.8 Nov 6, 2018
@jin jin added platform: apple team-Configurability platforms, toolchains, cquery, select(), config transitions labels Mar 1, 2021
bazel-io pushed a commit that referenced this issue Aug 12, 2021
@copybara-github
Import bazelbuild/remote-apis-sdks from GitHub.
7f40eb9 
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PiperOrigin-RevId: 390319167
@aiuto
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aiuto commented Dec 9, 2022

The entire Apple tool chain changed int he last 7 years. This is obsolete.

@aiuto aiuto closed this as not planned Won't fix, can't repro, duplicate, stale Dec 9, 2022
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category: rules > ObjC / iOS / J2ObjC P4 This is either out of scope or we don't have bandwidth to review a PR. (No assignee) platform: apple team-Configurability platforms, toolchains, cquery, select(), config transitions type: feature request
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@kchodorow @mrdomino @jin @hlopko @jmmv @aragos @aiuto @damienmg @laszlocsomor @c-parsons