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restic/internal/fs/helpers.go

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package fs
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import (
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"io/ioutil"
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"os"
"testing"
"github.com/restic/restic/internal/test"
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)
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// IsRegularFile returns true if fi belongs to a normal file. If fi is nil,
// false is returned.
func IsRegularFile(fi os.FileInfo) bool {
if fi == nil {
return false
}
return fi.Mode()&(os.ModeType|os.ModeCharDevice) == 0
}
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// TestChdir changes the current directory to dest, the function back returns to the previous directory.
func TestChdir(t testing.TB, dest string) (back func()) {
test.Helper(t).Helper()
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prev, err := os.Getwd()
if err != nil {
t.Fatal(err)
}
t.Logf("chdir to %v", dest)
err = os.Chdir(dest)
if err != nil {
t.Fatal(err)
}
return func() {
test.Helper(t).Helper()
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t.Logf("chdir back to %v", prev)
err = os.Chdir(prev)
if err != nil {
t.Fatal(err)
}
}
}
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// TestTempFile returns a new temporary file, which is removed when cleanup()
// is called.
func TestTempFile(t testing.TB, prefix string) (File, func()) {
f, err := ioutil.TempFile("", prefix)
if err != nil {
t.Fatal(err)
}
cleanup := func() {
_ = f.Close()
err = Remove(f.Name())
if err != nil {
t.Fatal(err)
}
}
return f, cleanup
}