[7.2.0] Remove unnecessary synchronization on RepositoryCache
#21788
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With a single exception that didn't matter for correctness, the operations on `RepositoryCache` were already atomic on the level of the file system and thus don't require `synchronized`. In fact, since different Bazel server instances share the same repository cache concurrently, this already had to be the case. The exception was a file write that stores the canonical id in a file whose name contains a hash of the id. However, the content of this file is never read, only its existence matters. The write is replaced by a touch. Also removes unnecessary interrupt checks and method overloads only used in tests. Work towards bazelbuild#20369 Closes bazelbuild#21403. PiperOrigin-RevId: 614728666 Change-Id: I67f81bd9e468260e4f83f15d6aaafa57e34d18f4
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With a single exception that didn't matter for correctness, the operations on
RepositoryCachewere already atomic on the level of the file system and thus don't requiresynchronized. In fact, since different Bazel server instances share the same repository cache concurrently, this already had to be the case.The exception was a file write that stores the canonical id in a file whose name contains a hash of the id. However, the content of this file is never read, only its existence matters. The write is replaced by a touch.
Also removes unnecessary interrupt checks and method overloads only used in tests.
Work towards #20369
Closes #21403.
PiperOrigin-RevId: 614728666
Change-Id: I67f81bd9e468260e4f83f15d6aaafa57e34d18f4
Commit 8eade04