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go/doc/next/3-tools.md
qiulaidongfeng 6cd066f8b2 cmd/go: add -changed to query for non-defaults in the env
Fixes #34208

Change-Id: I8ec2d96262dcd7cbf870f6173690143c54190722
GitHub-Last-Rev: 6543df4784
GitHub-Pull-Request: golang/go#65655
Reviewed-on: https://go-review.googlesource.com/c/go/+/563137
Reviewed-by: Alan Donovan <adonovan@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Matloob <matloob@golang.org>
2024-05-16 14:34:32 +00:00

1.2 KiB

Tools

Go command

Setting the GOROOT_FINAL environment variable no longer has an effect (#62047). Distributions that install the go command to a location other than $GOROOT/bin/go should install a symlink instead of relocating or copying the go binary.

The new go env -changed flag causes the command to print only those settings whose effective value differs from the default value that would be obtained in an empty environment with no prior uses of the -w flag.

Vet

The go vet subcommand now includes the stdversion analyzer, which flags references to symbols that are too new for the version of Go in effect in the referring file. (The effective version is determined by the go directive in the file's enclosing go.mod file, and by any //go:build constraints in the file.)

For example, it will report a diagnostic for a reference to the reflect.TypeFor function (introduced in go1.22) from a file in a module whose go.mod file specifies go 1.21.

Cgo