Separate fingerprints and snapshots (#5927)This de-tangles FileContentSnapshot (and removes it) from NormalizedFileSnapshots.Also it makes clear that only PhysicalSnapshots can be used to check if a file changed the timestamp.
Intern more paths/path segments for file snapshots (#5958)It seems like f781104 caused quite an increase on memoryusage for multi project builds. We observed this in anincreased Garbage collection time when buildingsanityCheck on Gradle itself (10s -> 2minutes).This PR reduces the memory footprint by interning pathsegments and relative paths in file collection snapshots.
Retain hierarchical structure in file system mirror (#5844)The `FileSystemSnapshotter` now returns a root for each snapshotted file, possible containing all the children in hierarchy as the directory would no the file system.This PR also contains some performance related changes:- Stop interning path segments: That was only necessary when we stored the same path segments in many RelativePath objects. We don't do this any more, so interning should not be necessary and make things faster.Actually, up-to-date assemble on largeMonolithicJavaProject (parallel false)is about 40ms faster with this change (2.5 %).- Don't use IndexedNormalizedFileSnapshots: It seems like there are no real performance gains by using IndexedNormalizedFileSnapshots.