affb1c2f66
When you run "go vet" explicitely against go1.4.go, it ignores the "+build !go1.5" tag and, of course, throws a syntax error: $ go vet go1.4.go can't load package: package main: go1.4.go:5:1: expected 'package', found 'STRING' "You need Go 1.5 or higher to compile gocryptfs!" Unfortunatey, this is how https://goreportcard.com/ seems to call "go vet", and means we get 0% on the "go vet" test and see this error: An error occurred while running this test (strconv.Atoi: parsing " go1.4.go": invalid syntax) By reworking the logic to use a non-existant package we get an uglier error $ GOROOT=/opt/go1.4.3 /opt/go1.4.3/bin/go build go1.4.go:7:8: cannot find package "You_need_Go_1.5_or_higher_to_compile_gocryptfs" in any of: /opt/go1.4.3/src/You_need_Go_1.5_or_higher_to_compile_gocryptfs (from $GOROOT) /home/jakob/go/src/You_need_Go_1.5_or_higher_to_compile_gocryptfs (from $GOPATH) profiling.go:6:2: cannot find package "runtime/trace" in any of: /opt/go1.4.3/src/runtime/trace (from $GOROOT) /home/jakob/go/src/runtime/trace (from $GOPATH) but make "go vet" happy.
8 lines
246 B
Go
8 lines
246 B
Go
// +build !go1.5
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package main
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// Cause an early compile error on Go 1.4 an lower. We need Go 1.5 for a number
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// of reasons, among them NewGCMWithNonceSize, RawURLEncoding, runtime/trace.
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import "You_need_Go_1.5_or_higher_to_compile_gocryptfs"
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