mirror of
https://github.com/cheat/cheat.git
synced 2024-11-25 15:31:36 +01:00
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
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"os/exec"
|
|
"strings"
|
|
|
|
"github.com/cheat/cheat/internal/config"
|
|
)
|
|
|
|
// Display writes output either directly to stdout, or through a pager,
|
|
// depending upon configuration.
|
|
func Display(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:]
|
|
|
|
// run the pager
|
|
cmd := exec.Command(pager, args...)
|
|
cmd.Stdin = strings.NewReader(out)
|
|
cmd.Stdout = os.Stdout
|
|
|
|
// handle errors
|
|
err := cmd.Run()
|
|
if err != nil {
|
|
fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to write to pager: %v", err))
|
|
os.Exit(1)
|
|
}
|
|
}
|