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f0aa65791b
* CHANGELOG text clarification * Dialing in config/options * Yet more dialing in of config/options * Refactor output writers * YAML output for more commands
46 lines
635 B
Go
46 lines
635 B
Go
package cli
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import (
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"io"
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"os"
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"github.com/mattn/go-isatty"
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"golang.org/x/term"
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)
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// isTerminal returns true if w is a terminal.
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func isTerminal(w io.Writer) bool {
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switch v := w.(type) {
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case *os.File:
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return term.IsTerminal(int(v.Fd()))
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default:
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return false
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}
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}
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// isColorTerminal returns true if w is a colorable terminal.
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func isColorTerminal(w io.Writer) bool {
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if w == nil {
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return false
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}
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if !isTerminal(w) {
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return false
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}
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if os.Getenv("TERM") == "dumb" {
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return false
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}
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f, ok := w.(*os.File)
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if !ok {
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return false
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}
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if isatty.IsCygwinTerminal(f.Fd()) {
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return false
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}
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return true
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}
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