/
FZF.go
79 lines (61 loc) · 1.24 KB
/
FZF.go
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package prelude
import (
"context"
"io"
"os"
"os/exec"
"os/signal"
"time"
perrors "github.com/aymericbeaumet/pimp/pkg/errors"
)
type FZFRet struct {
Stdout string `json:"stdout"`
}
func (ret FZFRet) String() string {
return ret.Stdout
}
func FZF(input interface{}) (*FZFRet, error) {
s := ToString(input)
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
cmd := exec.CommandContext(ctx, "fzf")
stdin, err := cmd.StdinPipe()
if err != nil {
return nil, err
}
stdout, err := cmd.StdoutPipe()
if err != nil {
return nil, err
}
cmd.Stderr = os.Stderr
signalC := make(chan os.Signal, 32)
signal.Notify(signalC)
if err := cmd.Start(); err != nil {
return nil, err
}
go func() {
for signal := range signalC {
_ = cmd.Process.Signal(signal)
}
}()
if _, err := stdin.Write([]byte(s)); err != nil {
return nil, err
}
if _, err := stdin.Write([]byte{'\n'}); err != nil {
return nil, err
}
state, err := cmd.Process.Wait()
if err != nil {
return nil, err
}
if ec := state.ExitCode(); ec != 0 {
return nil, perrors.NewFatalError(ec, "")
}
outbytes, err := io.ReadAll(stdout)
if err != nil {
return nil, err
}
return &FZFRet{
Stdout: string(outbytes),
}, nil
}