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Prevent false remote cache hits between builds on different operating systems #13552

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jamiesnape opened this issue Jun 12, 2020 · 4 comments
Closed

Prevent false remote cache hits between builds on different operating systems #13552

jamiesnape opened this issue Jun 12, 2020 · 4 comments
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component: continuous integration Jenkins, CDash, mirroring of externals, website infrastructure priority: medium unused team: kitware

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@jamiesnape
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Relates #13102.

Per bazelbuild/bazel#4558 and bazelbuild/bazel#3320 seems creating separate caches is the only truly safe solution.
@jamiesnape jamiesnape added unused team: kitware component: continuous integration Jenkins, CDash, mirroring of externals, website infrastructure priority: medium labels Jun 12, 2020
@jamiesnape jamiesnape self-assigned this Jun 12, 2020
@jamiesnape
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A minimal set of tools for a cache key would be:

  • CC (clang or gcc)
  • gfortran
  • java
  • python3

Something like

dpkg-query --showformat='${Version}' --show $(dpkg-query --search $(readlink -f $(command -v ${tool_name})) | cut -d':' -f1)

will get the version in a non-tool-specific way on Ubuntu (modulo some double quotes).

@jwnimmer-tri
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Is this a blocker for #13434?

@jamiesnape
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Pretty much. It is not a difficult task, though.

@jamiesnape
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Closed by RobotLocomotion/drake-ci@7a41cae.

@jamiesnape jamiesnape removed their assignment Jun 22, 2021
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component: continuous integration Jenkins, CDash, mirroring of externals, website infrastructure priority: medium unused team: kitware
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