1 Commits (67e7f61af7fffbc47aadf48777e2dd5da39796ff)

Author	SHA1	Message	Date
Felix Lange	effaf18523	build: improve cross compilation setup (#22804) ... This PR cleans up the CI build system and fixes a couple of issues. - The go tool launcher code has been moved to internal/build. With the new toolchain functions, the environment of the host Go (i.e. the one that built ci.go) and the target Go (i.e. the toolchain downloaded by -dlgo) are isolated more strictly. This is important to make cross compilation and -dlgo work correctly in more cases. - The -dlgo option now skips the download and uses the host Go if the running Go version matches dlgoVersion exactly. - The 'test' command now supports -dlgo, -cc and -arch. Running unit tests with foreign GOARCH is occasionally useful. For example, it can be used to run 32-bit tests on Windows. It can also be used to run darwin/amd64 tests on darwin/arm64 using Rosetta 2. - The 'aar', 'xcode' and 'xgo' commands now use a slightly different method to install external tools. They previously used `go get`, but this comes with the annoying side effect of modifying go.mod. They now use `go install` instead, which is the recommended way of installing tools without modifying the local module. - The old build warning about outdated Go version has been removed because we're much better at keeping backwards compatibility now.	4 years ago