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Source file src/cmd/go/go_unix_test.go

Documentation: cmd/go

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // +build darwin dragonfly freebsd linux netbsd openbsd solaris
     6  
     7  package main_test
     8  
     9  import (
    10  	"os"
    11  	"syscall"
    12  	"testing"
    13  )
    14  
    15  func TestGoBuildUmask(t *testing.T) {
    16  	// Do not use tg.parallel; avoid other tests seeing umask manipulation.
    17  	mask := syscall.Umask(0077) // prohibit low bits
    18  	defer syscall.Umask(mask)
    19  	tg := testgo(t)
    20  	defer tg.cleanup()
    21  	tg.tempFile("x.go", `package main; func main() {}`)
    22  	// Make sure artifact will be output to /tmp/... in case the user
    23  	// has POSIX acl's on their go source tree.
    24  	// See issue 17909.
    25  	exe := tg.path("x")
    26  	tg.creatingTemp(exe)
    27  	tg.run("build", "-o", exe, tg.path("x.go"))
    28  	fi, err := os.Stat(exe)
    29  	if err != nil {
    30  		t.Fatal(err)
    31  	}
    32  	if mode := fi.Mode(); mode&0077 != 0 {
    33  		t.Fatalf("wrote x with mode=%v, wanted no 0077 bits", mode)
    34  	}
    35  }
    36  

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