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go/go.env

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cmd/go: introduce GOROOT/go.env and move proxy/sumdb config there Various Linux distributions edit cmd/go/internal/cfg/cfg.go to change the default settings of GOPROXY and GOSUMDB. Make it possible for them to do this without editing the go command source code by introducing GOROOT/go.env and moving those defaults there. With the upcoming changes for reproducible builds (#24904), this should mean that Linux distributions distribute binaries that are bit-for-bit identical to the Go distribution binaries, even when rebuilding the distribution themselves. Fixes #57179. Change-Id: Ib2ecc61e6d036f97db6fd47dca757c94fdea5629 Reviewed-on: https://go-review.googlesource.com/c/go/+/462198 Auto-Submit: Russ Cox <rsc@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Russ Cox <rsc@golang.org>
2023-01-14 14:40:22 -07:00
# This file contains the initial defaults for go command configuration.
# Values set by 'go env -w' and written to the user's go/env file override these.
# The environment overrides everything else.
# Use the Go module mirror and checksum database by default.
# See https://proxy.golang.org for details.
GOPROXY=https://proxy.golang.org,direct
GOSUMDB=sum.golang.org
cmd/go: set default GOTOOLCHAIN in GOROOT/go.env As part of the work for #57179 we moved configurable defaults to GOROOT/go.env, so that packagers don't have to modify source code to change those defaults. Since packagers may want to modify GOTOOLCHAIN's default, move it to go.env too. This CL modifies 'go env' to print GOTOOLCHAIN by default. It also refines CL 496957 from yesterday to recognize any env var in either go.env or the user go/env, not just the user go/env. When I put GOTOOLCHAIN in go.env, but before I added it to the default printing list, 'go env GOTOOLCHAIN' was printing an empty string, and it was incredibly confusing. For #57001. Fixes #60361 while we're here. Also includes a fix for a review comment on CL 497079 that I forgot to mail. Change-Id: I7b904d9202f05af789aaa33aed93f903b515aa28 Reviewed-on: https://go-review.googlesource.com/c/go/+/497437 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Russ Cox <rsc@golang.org>
2023-05-23 10:37:01 -06:00
# Automatically download newer toolchains as directed by go.mod files.
cmd/go: additional doc-inspired tests and bug fixes Additional tests and bug fixes realized while writing go.dev/doc/gotoolchain (CL 500775). - Handle go get toolchain@go1.22 (resolve to latest patch release, same as go get go@1.22). (See modload/query.go and gover/mod.go.) - Handle go get go@patch toolchain@patch. (See modload/query.go and gover/mod.go.) - Remove prefix-goVERSION-suffix form for toolchain name, standardizing on goVERSION-suffix. I have no good explanation for having two forms, so simplify to one. (See vendor and gover.) - Fail toolchain downloads when GOSUMDB=off. Because toolchain downloads cannot always be predicted (especially during switching rather than selection), they cannot be listed in go.sum. We rely on the checksum database for integrity of the download, especially if proxied. If the checksum database is disabled, this integrity check won't happen, so fail toolchain downloads. (See modfetch/sumdb.go and script/gotoolchain_net.txt) - Use names from documentation in package toolchain (Select, Switch; SwitchTo renamed to Exec to avoid both names; reqs.go renamed to switch.go; toolchain.go renamed to select.go.) - Make "go env GOTOOLCHAIN" and "go env -w GOTOOLCHAIN" work even when GOTOOLCHAIN is misconfigured. (See special case at top of Select in select.go.) - Clarify what goInstallVersion does (report whether this is go install or go run pkg@version) and explain the potential version switch more clearly. Use the Switcher directly instead of reimplementing it. (See select.go.) - Document go@ and toolchain@ forms in go help get, linking to go.dev/doc/toolchain. (See modget/get.go.) - Update URL of documentation in $GOROOT/go.env. For #57001. Change-Id: I895ef3519ff95db8710ed23b36ebaf4f648120cb Reviewed-on: https://go-review.googlesource.com/c/go/+/500797 Reviewed-by: Michael Matloob <matloob@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Bypass: Russ Cox <rsc@golang.org>
2023-06-04 20:34:52 -06:00
# See https://go.dev/doc/toolchain for details.
cmd/go: set default GOTOOLCHAIN in GOROOT/go.env As part of the work for #57179 we moved configurable defaults to GOROOT/go.env, so that packagers don't have to modify source code to change those defaults. Since packagers may want to modify GOTOOLCHAIN's default, move it to go.env too. This CL modifies 'go env' to print GOTOOLCHAIN by default. It also refines CL 496957 from yesterday to recognize any env var in either go.env or the user go/env, not just the user go/env. When I put GOTOOLCHAIN in go.env, but before I added it to the default printing list, 'go env GOTOOLCHAIN' was printing an empty string, and it was incredibly confusing. For #57001. Fixes #60361 while we're here. Also includes a fix for a review comment on CL 497079 that I forgot to mail. Change-Id: I7b904d9202f05af789aaa33aed93f903b515aa28 Reviewed-on: https://go-review.googlesource.com/c/go/+/497437 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> Run-TryBot: Russ Cox <rsc@golang.org>
2023-05-23 10:37:01 -06:00
GOTOOLCHAIN=auto
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