[Android] Add --mnemonic_cache_salt flag for Bazel 8.1.1 - #37
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azad-uber-2 merged 1 commit intoJun 1, 2026
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…validation Add a new `--mnemonic_cache_salt=<Mnemonic>=<value>` flag that allows selectively busting the local and remote action cache for specific action types (e.g. `--mnemonic_cache_salt=Javac=V2`). The salt is included in the action properties digest (local cache) and in the CacheSalt proto (remote cache), so changing or removing it forces a cache miss only for the targeted mnemonic. Salts for unrelated mnemonics have no effect on other actions. Changes: - ExecutionOptions: add `--mnemonic_cache_salt` flag + `getMnemonicCacheSalts()` helper - ActionCache.Entry: include optional mnemonic salt in `digestActionProperties()` - ActionCacheChecker: thread `mnemonicCacheSalts` through `getTokenIfNeedToExecute()` and `updateActionCache()`; add backward-compat overloads - SkyframeActionExecutor / SkyframeExecutor: accept and store `mnemonicCacheSalts` at configure time - SkyframeBuilder / ExecutionTool: read the flag and pass it down through the builder pipeline - RemoteExecutionService: include mnemonic salt in `CacheSalt` proto for remote cache - RemoteActionContextProvider: wire `mnemonicCacheSalts` into `RemoteExecutionService` via setter - cache_salt.proto: add `mnemonic_salt` field (field 4) - Tests: fix pre-existing 8-param `updateActionCache` call; add 7 new tests covering salt hit/miss semantics Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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azad-uber-2
merged commit Jun 1, 2026
de68057
into
uber-common:uber/android/8.1.1
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Summary
Cherry-pick of fae19c5 from
uber/android/7.6.1touber/android/8.1.1with adaptations for the Bazel 8 codebase:combineUnordered) but is needed by the mnemonic cache salt feature.staticin 8.1.1 (was non-static in 7.6.1), somnemonicCacheSaltsis passed as a parameter instead of accessed as an instance field.Test plan
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Co-Authored-By: Claude Opus 4.6 (1M context) noreply@anthropic.com