internal/lsp: explicitly watch all known directories

VS Code's file watching API doesn't send notifications about directory
deletions unless you register for them explicitly (see Rather than watch
every file in the workspace, keep track of every relevant directory and
register file watchers for it.

This CL moves the snapshot's WorkspaceDirectories function to the
session and changes it to a KnownDirectories function. It returns all of
the directories and subdirectories known the session at a given moment.
Top-level directories are marked as such so that their *.{go,mod,sum}
contents can be watched, while subdirectories are just watched by path
so we can be notified of deletions.

Fixes golang/go#42348

Change-Id: Ic6d02dba55b5de89370522ea5d3cf1d198927997
Run-TryBot: Rebecca Stambler <>
gopls-CI: kokoro <>
TryBot-Result: Go Bot <>
Reviewed-by: Heschi Kreinick <>
Trust: Rebecca Stambler <>
6 files changed
tree: 0f4aca501ae53cf5ced6e30d3a50d5417805594f
  1. .gitattributes
  2. .gitignore
  3. .prettierrc
  10. benchmark/
  11. blog/
  12. cmd/
  13. codereview.cfg
  14. container/
  15. cover/
  16. go.mod
  17. go.sum
  18. go/
  19. godoc/
  20. gopls/
  21. imports/
  22. internal/
  23. playground/
  24. present/
  25. refactor/
  26. txtar/

Go Tools

This subrepository holds the source for various packages and tools that support the Go programming language.

Some of the tools, godoc and vet for example, are included in binary Go distributions.

Others, including the Go guru and the test coverage tool, can be fetched with go get.

Packages include a type-checker for Go and an implementation of the Static Single Assignment form (SSA) representation for Go programs.


The easiest way to install is to run go get -u You can also manually git clone the repository to $GOPATH/src/

JS/CSS Formatting

This repository uses prettier to format JS and CSS files.

The version of prettier used is 1.18.2.

It is encouraged that all JS and CSS code be run through this before submitting a change. However, it is not a strict requirement enforced by CI.

Report Issues / Send Patches

This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see

The main issue tracker for the tools repository is located at Prefix your issue with “x/tools/(your subdir):” in the subject line, so it is easy to find.