init: pristine aerc 0.20.0 source

lib/crypto/gpg/gpgbin/encrypt.go

@@ -0,0 +1,33 @@
+package gpgbin
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+
+	"git.sr.ht/~rjarry/aerc/models"
+)
+
+// Encrypt runs gpg --encrypt [--sign] -r [recipient]
+func Encrypt(r io.Reader, to []string, from string) ([]byte, error) {
+	args := []string{
+		"--armor",
+	}
+	if from != "" {
+		args = append(args, "--sign", "--default-key", from)
+	}
+	for _, rcpt := range to {
+		args = append(args, "--recipient", rcpt)
+	}
+	args = append(args, "--encrypt", "-")
+
+	g := newGpg(r, args)
+	_ = g.cmd.Run()
+	var md models.MessageDetails
+	err := parseStatusFd(bytes.NewReader(g.stderr.Bytes()), &md)
+	if err != nil {
+		return nil, fmt.Errorf("gpg: failure to encrypt: %w. check public key(s)", err)
+	}
+
+	return g.stdout.Bytes(), nil
+}