cheat/internal/display/write.go

37 lines
780 B
Go
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package display
import (
"fmt"
"os"
"os/exec"
"strings"
"github.com/cheat/cheat/internal/config"
)
// Write writes output either directly to stdout, or through a pager,
// depending upon configuration.
func Write(out string, conf config.Config) {
// if no pager was configured, print the output to stdout and exit
if conf.Pager == "" {
fmt.Print(out)
os.Exit(0)
}
// otherwise, pipe output through the pager
parts := strings.Split(conf.Pager, " ")
pager := parts[0]
args := parts[1:]
// configure the pager
cmd := exec.Command(pager, args...)
cmd.Stdin = strings.NewReader(out)
cmd.Stdout = os.Stdout
// run the pager and handle errors
if err := cmd.Run(); err != nil {
fmt.Fprintf(os.Stderr, "failed to write to pager: %v\n", err)
os.Exit(1)
}
}