go/gopls
Robert Findley f1bb5ca08f internal/lsp/cache: report a critical error when go.work is invalid
When a go.work file fails to validate, the workspace is left in an
invalid state: we will detect that the workspace is defined by the
go.work, but will not actually parse any active modules. This should be
a critical error.

Fix this by adding allowing the workspace to surface critical errors via
a new cache.workspace.criticalError method.

Additionally:
 - only build the workspace mod file in workspace.build if the mode is
   fileSystemWorkspace (in all other modes the modfile is already
   determined)
 - rename workspace.invalidate to workspace.Clone, to be consistent with
   other data structures
 - rename CriticalError.DiagList to CriticalError.Diagnostics
 - add several TODOs for observations while reading the code
 - create a new file for regtests related to broken workspaces
 - make the regtest sandbox panic when duplicate paths are present in
   the sandbox file set (an error I made while writing the test)

Updates golang/go#53933

Change-Id: If8625ab190129bc9c57e784314bc9cc92644c955
Reviewed-on: https://go-review.googlesource.com/c/tools/+/417593
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
gopls-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Robert Findley <rfindley@google.com>
2022-07-27 18:59:40 +00:00
..
api-diff gopls/api-diff: fix api-diff command for Go 1.18 2021-10-27 16:48:55 +00:00
doc internal/lsp: update inlay hints documentation to include go snippets 2022-07-26 18:27:49 +00:00
integration/govim gopls/integration/govim: build gopls using go1.18rc1 2022-02-28 21:15:24 +00:00
internal internal/lsp/cache: report a critical error when go.work is invalid 2022-07-27 18:59:40 +00:00
release all: replace all usages of os/exec with golang.org/x/sys/execabs 2021-01-19 22:25:03 +00:00
test internal/lsp: add missing bug reporting, and panic during marker tests 2022-05-31 14:14:38 +00:00
README.md gopls: document that v0.7.5 is the final version to support Go 1.12 2022-01-31 21:11:00 +00:00
go.mod gopls: update dependencies 2022-07-26 14:36:43 +00:00
go.sum all: update dependencies 2022-07-26 14:37:02 +00:00
main.go go/analysis/passes/tests: Check malformed fuzz target. 2022-02-16 18:26:19 +00:00

README.md

gopls, the Go language server

PkgGoDev

gopls (pronounced "Go please") is the official Go language server developed by the Go team. It provides IDE features to any LSP-compatible editor.

You should not need to interact with gopls directly--it will be automatically integrated into your editor. The specific features and settings vary slightly by editor, so we recommend that you proceed to the documentation for your editor below.

Editors

To get started with gopls, install an LSP plugin in your editor of choice.

If you use gopls with an editor that is not on this list, please let us know by filing an issue or modifying this documentation.

Installation

For the most part, you should not need to install or update gopls. Your editor should handle that step for you.

If you do want to get the latest stable version of gopls, change to any directory that is both outside of your GOPATH and outside of a module (a temp directory is fine), and run:

go install golang.org/x/tools/gopls@latest

Learn more in the advanced installation instructions.

Setting up your workspace

gopls supports both Go module and GOPATH modes, but if you are working with multiple modules or uncommon project layouts, you will need to specifically configure your workspace. See the Workspace document for information on supported workspace layouts.

Configuration

You can configure gopls to change your editor experience or view additional debugging information. Configuration options will be made available by your editor, so see your editor's instructions for specific details. A full list of gopls settings can be found in the Settings documentation.

Environment variables

gopls inherits your editor's environment, so be aware of any environment variables you configure. Some editors, such as VS Code, allow users to selectively override the values of some environment variables.

Troubleshooting

If you are having issues with gopls, please follow the steps described in the troubleshooting guide.

Supported Go versions and build systems

gopls follows the Go Release Policy, meaning that it officially supports the last 2 major Go releases. Per issue #39146, we attempt to maintain best-effort support for the last 4 major Go releases, but this support extends only to not breaking the build and avoiding easily fixable regressions.

The following table shows the final gopls version that supports being built at a given Go Version. Any more recent Go versions missing from this table can still be built with the latest version of gopls.

Go Version Final gopls Version With Support
Go 1.12 gopls@v0.7.5

Our extended support is enforced via continuous integration with older Go versions. This legacy Go CI may not block releases: test failures may be skipped rather than fixed. Furthermore, if a regression in an older Go version causes irreconcilable CI failures, we may drop support for that Go version in CI if it is 3 or 4 Go versions old.

gopls currently only supports the go command, so if you are using a different build system, gopls will not work well. Bazel is not officially supported, but Bazel support is in development (see bazelbuild/rules_go#512). You can follow these instructions to configure your gopls to work with Bazel.

Additional information