go/gopls
Alan Donovan 2b29c66d7e internal/gcimporter: API for shallow export data
This change adds an internal API for marshalling and
unmarshalling a types.Package to "shallow" export data,
which does not index packages other than the main one.
The import function accepts a function that loads symbols
on demand (e.g. by recursively reading export data for
indirect dependencies).

The CL includes a test that the entire standard
library can be type-checked using shallow data.

Also:
- break dependency on go/ast.
- narrow the name and type of qualifiedObject.
- add (test) dependency on errgroup, and tidy go.mod.

Change-Id: I92d31efd343cf5dd6fca6d7b918a23749e2d1e83
Reviewed-on: https://go-review.googlesource.com/c/tools/+/447737
Run-TryBot: Alan Donovan <adonovan@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
gopls-CI: kokoro <noreply+kokoro@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2022-11-04 16:27:25 +00:00
..
api-diff gopls/api-diff: simplify the api-diff implementation 2022-10-31 20:33:45 +00:00
doc gopls/doc: clean up README and add a release policy 2022-11-03 20:32:59 +00:00
integration/govim gopls/integration/govim: build gopls using go1.18rc1 2022-02-28 21:15:24 +00:00
internal gopls/internal/lsp/mod: fix vulncheck hover message 2022-11-04 14:59:01 +00:00
release gopls: migrate internal/lsp to gopls/internal/lsp 2022-09-07 16:44:44 +00:00
test gopls/internal/span: move internal/span into gopls 2022-10-07 14:50:44 +00:00
README.md gopls/doc: clean up README and add a release policy 2022-11-03 20:32:59 +00:00
go.mod internal/gcimporter: API for shallow export data 2022-11-04 16:27:25 +00:00
go.sum internal/gcimporter: API for shallow export data 2022-11-04 16:27:25 +00:00
main.go gopls: migrate internal/lsp to gopls/internal/lsp 2022-09-07 16:44:44 +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 send us a CL updating 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, run the following command:

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

Learn more in the advanced installation instructions.

Learn more about gopls releases in the release policy.

Setting up your workspace

gopls supports both Go module, multi-module and GOPATH modes. See the workspace documentation 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.

Support Policy

Gopls is maintained by engineers on the Go tools team, who actively monitor the Go and VS Code Go issue trackers.

Supported Go versions

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.

In the context of this discussion, gopls "supports" a Go version if it supports being built with that Go version as well as integrating with the go command of that Go version.

The following table shows the final gopls version that supports a given Go version. Go releases more recent than any in the table can be used with any version of gopls.

Go Version Final gopls version with support (without warnings)
Go 1.12 gopls@v0.7.5
Go 1.15 gopls@v0.9.5

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.

Supported build systems

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 may be made to work with an appropriately configured go/packages driver. See bazelbuild/rules_go#512 for more information. You can follow these instructions to configure your gopls to work with Bazel.

Troubleshooting

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

Additional information