pantsbuild / pants / 18771072790

Build # 18771072790

Build Type

push

github

Committed by web-flow

Commit Message

Ensure that materialization is idempotent as advertised. (#22757)

Materializing from the store is supposed to be idempotent. 

This is important in cases such as:
- Materializing over an existing directory in `dist/`.
- The sandboxer retrying an operation after a restart.

However in practice it was not idempotent, in several ways.

This change fixes how files, hardlinks and symlinks are
written, to ensure idempotence. It also updates the tests
to verify this.

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77874 of 97000 relevant lines covered (80.28%)

3.88 hits per line

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