From 5c1f0b383990e026f796285c5ce3803da528dc20 Mon Sep 17 00:00:00 2001
From: Zephyr Lykos <git@mochaa.ws>
Date: Sat, 30 Sep 2023 23:05:45 +0800
Subject: [PATCH] gpgme: add gpgme_get_dirinfo

---
 gpgme.go            | 20 +++++++++++++++++---
 gpgme_test.go       | 12 ++++++++++++
 unset_agent_info.go |  1 +
 3 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/gpgme.go b/gpgme.go
index d253387c7c..15af69c865 100644
--- a/gpgme.go
+++ b/gpgme.go
@@ -7,6 +7,7 @@ package gpgme
 // #include <gpgme.h>
 // #include "go_gpgme.h"
 import "C"
+
 import (
 	"fmt"
 	"io"
@@ -235,6 +236,17 @@ func SetEngineInfo(proto Protocol, fileName, homeDir string) error {
 	return handleError(C.gpgme_set_engine_info(C.gpgme_protocol_t(proto), cfn, chome))
 }
 
+func GetDirInfo(what string) string {
+	cwhat := C.CString(what)
+	defer C.free(unsafe.Pointer(cwhat))
+
+	cdir := C.gpgme_get_dirinfo(cwhat)
+	if cdir == nil {
+		return ""
+	}
+	return C.GoString(cdir)
+}
+
 func FindKeys(pattern string, secretOnly bool) ([]*Key, error) {
 	var keys []*Key
 	ctx, err := New()
@@ -567,9 +579,11 @@ func (c *Context) Sign(signers []*Key, plain, sig *Data, mode SigMode) error {
 	return err
 }
 
-type AssuanDataCallback func(data []byte) error
-type AssuanInquireCallback func(name, args string) error
-type AssuanStatusCallback func(status, args string) error
+type (
+	AssuanDataCallback    func(data []byte) error
+	AssuanInquireCallback func(name, args string) error
+	AssuanStatusCallback  func(status, args string) error
+)
 
 // AssuanSend sends a raw Assuan command to gpg-agent
 func (c *Context) AssuanSend(
diff --git a/gpgme_test.go b/gpgme_test.go
index aab84deba9..49ea5bdf3f 100644
--- a/gpgme_test.go
+++ b/gpgme_test.go
@@ -105,6 +105,18 @@ func TestEngineInfo(t *testing.T) {
 	checkError(t, SetEngineInfo(testProto, "", testHomeDir))
 }
 
+func TestGetDirInfo(t *testing.T) {
+	info := GetDirInfo("fail")
+	if info != "" {
+		t.Errorf("expected no info, got: %q", info)
+	}
+
+	info = GetDirInfo("homedir")
+	if info == "" {
+		t.Error("expected dir info, got nothing")
+	}
+}
+
 func ctxWithCallback(t *testing.T) *Context {
 	ensureVersion(t, "1.", "can only set password callback for GPG v1.x")
 
diff --git a/unset_agent_info.go b/unset_agent_info.go
index 986aca59f6..8add8ec877 100644
--- a/unset_agent_info.go
+++ b/unset_agent_info.go
@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package gpgme