perf(lsp): fix redundant file reads #20802
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dsherret
approved these changes
Oct 12, 2023
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When populating
FileSystemDocs, we read files into it here: https://github.com/denoland/deno/blob/v1.37.1/cli/lsp/documents.rs#L762. But this was being invoked redundantly all over the place because we were unnecessarily invalidating the existing entry. In particularDocument::open()was setting thefs_versionto"1"invariably. Now it's set according to the file's mtime and updated whenever a save notification is received.