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27 lines
548 B
Go
27 lines
548 B
Go
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package config
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import (
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"os"
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"os/exec"
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)
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// Pager attempts to locate a pager that's appropriate for the environment.
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func Pager() string {
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// if $PAGER is set, return the corresponding pager
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if os.Getenv("PAGER") != "" {
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return os.Getenv("PAGER")
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}
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// Otherwise, search for `pager`, `less`, and `more` on the `$PATH`. If
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// none are found, return an empty pager.
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for _, pager := range []string{"pager", "less", "more"} {
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if path, err := exec.LookPath(pager); err != nil {
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return path
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}
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}
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// default to no pager
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return ""
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}
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