[9.3.0] Register discovered headers for path mapping - #30442
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This PR adds all the discovered headers to the list of artifacts checked for collision by path mapping. This ensure we do not apply path mapping when several of these headers conflict. Otherwise it fails later on, when computing merkle hashes, with a big bad crash. Fixes bazelbuild#29546 Not really. It may silently disable path mapping on actions that used to support it before. - [X] I have added tests for the new use cases (if any). - [X] I have updated the documentation (if applicable). RELNOTES: None Closes bazelbuild#29547. PiperOrigin-RevId: 949155011 Change-Id: I7f5a8e2194d8a98c9d9f253d875265c51074229c (cherry picked from commit deaa7a9) Closes bazelbuild#30308
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I assume the test failures are unrelated, but could you take a look? |
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Jul 23, 2026
iancha1992
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Description
This PR adds all the discovered headers to the list of artifacts checked for collision by path mapping. This ensure we do not apply path mapping when several of these headers conflict. Otherwise it fails later on, when computing merkle hashes, with a big bad crash.
Motivation
Fixes #29546
Build API Changes
Not really. It may silently disable path mapping on actions that used to support it before.
Checklist
RELNOTES: None
Closes #29547.
PiperOrigin-RevId: 949155011
Change-Id: I7f5a8e2194d8a98c9d9f253d875265c51074229c (cherry picked from commit deaa7a9)
Closes #30308