b8c7fddd58
Before this change, building a GOROOT using make.bash, and then moving the entire to a new path confused the go tool. Correct operation of the go tool under these conditions required either running make.bash again (not always possible if the new location was owned by a different system user) or setting the GOROOT environment variable. Setting GOROOT is unfortunate and discouraged, as it makes it too easy to use the go tool from one GOROOT and the compiler from another GOROOT. With this change, the go tool finds its GOROOT relative to its own location, using os.Executable. It checks it is in a GOROOT by searching for the GOROOT/pkg/tool directory, to avoid two plausible situations: ln -s $GOROOT/bin/go /usr/local/bin/go and PATH=$HOME/bin:$PATH GOPATH=$HOME ln -s $GOROOT/bin/go $HOME/bin/go Additionally, if the current executable path is not in a GOROOT, the tool will follow any symlinks for the executable and check to see if its original path is a GOROOT. Fixes #18678 Change-Id: I151d7d449d213164f98193cc176b616849e6332c Reviewed-on: https://go-review.googlesource.com/42533 Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> |
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The Go Programming Language
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