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59d5c96c24
Implement a `pager` config option. If configured, `cheat` will automatically pipe output through the configured pager (where appropriate).
38 lines
772 B
Go
38 lines
772 B
Go
package display
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import (
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"fmt"
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"os"
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"os/exec"
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"strings"
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"github.com/cheat/cheat/internal/config"
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)
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// Display writes output either directly to stdout, or through a pager,
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// depending upon configuration.
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func Display(out string, conf config.Config) {
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// if no pager was configured, print the output to stdout and exit
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if conf.Pager == "" {
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fmt.Print(out)
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os.Exit(0)
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}
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// otherwise, pipe output through the pager
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parts := strings.Split(conf.Pager, " ")
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pager := parts[0]
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args := parts[1:]
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// run the pager
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cmd := exec.Command(pager, args...)
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cmd.Stdin = strings.NewReader(out)
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cmd.Stdout = os.Stdout
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// handle errors
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err := cmd.Run()
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if err != nil {
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fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to write to pager: %v", err))
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os.Exit(1)
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}
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}
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