d7a3a090df
From the 1.17 release notes (https://golang.org/doc/go1.17#gofmt): gofmt (and go fmt) now synchronizes //go:build lines with // +build lines. More info about this change can be found at https://golang.org/design/draft-gobuild
55 lines
926 B
Go
55 lines
926 B
Go
//go:build windows
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// +build windows
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package tools
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import (
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"bytes"
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"fmt"
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"github.com/git-lfs/git-lfs/v2/subprocess"
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)
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type cygwinSupport byte
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const (
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cygwinStateUnknown cygwinSupport = iota
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cygwinStateEnabled
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cygwinStateDisabled
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)
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func (c cygwinSupport) Enabled() bool {
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switch c {
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case cygwinStateEnabled:
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return true
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case cygwinStateDisabled:
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return false
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default:
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panic(fmt.Sprintf("unknown enabled state for %v", c))
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}
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}
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var (
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cygwinState cygwinSupport
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)
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func isCygwin() bool {
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if cygwinState != cygwinStateUnknown {
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return cygwinState.Enabled()
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}
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cmd := subprocess.ExecCommand("uname")
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out, err := cmd.Output()
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if err != nil {
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return false
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}
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if bytes.Contains(out, []byte("CYGWIN")) || bytes.Contains(out, []byte("MSYS")) || bytes.Contains(out, []byte("MINGW")) {
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cygwinState = cygwinStateEnabled
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} else {
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cygwinState = cygwinStateDisabled
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}
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return cygwinState.Enabled()
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}
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