Fix the `github-tag-action` workflow (#932)

This has been failing for a while because of some changes in `git`.

(cherry picked from commit 4b14d29c20)

.github/workflows/ci.yml

@@ -63,6 +63,7 @@ jobs:
       matrix:
         libgit2:
           - '109b4c887ffb63962c7017a66fc4a1f48becb48e'  # v1.2.0 with a fixed symbol
+          - 'v1.3.0'
     name: Go (system-wide, dynamic)
 
     runs-on: ubuntu-20.04
@@ -105,3 +106,26 @@ jobs:
         sudo ./script/build-libgit2.sh --static --system
     - name: Test
       run: go test --count=1 --tags "static,system_libgit2" ./...
+
+  check-generate:
+    name: Check generated files were not modified
+    runs-on: ubuntu-20.04
+    steps:
+    - name: Set up Go
+      uses: actions/setup-go@v1
+      with:
+        go-version: '1.17'
+      id: go
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+    - name: Install libgit2 build dependencies
+      run: |
+        git submodule update --init
+        sudo apt-get install -y --no-install-recommends libssh2-1-dev
+        go install golang.org/x/tools/cmd/stringer@latest
+    - name: Generate files
+      run: |
+        export PATH=$(go env GOPATH)/bin:$PATH
+        make generate
+    - name: Check nothing changed
+      run: git diff --quiet --exit-code || (echo "detected changes after generate" ; git status ; exit 1)

.github/workflows/tag.yml

@@ -19,7 +19,7 @@ jobs:
         fetch-depth: 0
     - name: Bump version and push tag
       id: bump-version
-      uses: anothrNick/github-tag-action@9aaabdb5e989894e95288328d8b17a6347217ae3
+      uses: anothrNick/github-tag-action@43ed073f5c1445ca8b80d920ce2f8fa550ae4e8d
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         WITH_V: true

Build_bundled_static.go

@@ -10,8 +10,8 @@ package git
 #cgo CFLAGS: -DLIBGIT2_STATIC
 #include <git2.h>
 
-#if LIBGIT2_VER_MAJOR != 1 || LIBGIT2_VER_MINOR < 2 || LIBGIT2_VER_MINOR > 2
-# error "Invalid libgit2 version; this git2go supports libgit2 between v1.2.0 and v1.2.0"
+#if LIBGIT2_VER_MAJOR != 1 || LIBGIT2_VER_MINOR < 2 || LIBGIT2_VER_MINOR > 3
+# error "Invalid libgit2 version; this git2go supports libgit2 between v1.2.0 and v1.3.0"
 #endif
 */
 import "C"

Build_system_dynamic.go

@@ -8,8 +8,8 @@ package git
 #cgo CFLAGS: -DLIBGIT2_DYNAMIC
 #include <git2.h>
 
-#if LIBGIT2_VER_MAJOR != 1 || LIBGIT2_VER_MINOR < 2 || LIBGIT2_VER_MINOR > 2
-# error "Invalid libgit2 version; this git2go supports libgit2 between v1.2.0 and v1.2.0"
+#if LIBGIT2_VER_MAJOR != 1 || LIBGIT2_VER_MINOR < 2 || LIBGIT2_VER_MINOR > 3
+# error "Invalid libgit2 version; this git2go supports libgit2 between v1.2.0 and v1.3.0"
 #endif
 */
 import "C"

Build_system_static.go

@@ -8,8 +8,8 @@ package git
 #cgo CFLAGS: -DLIBGIT2_STATIC
 #include <git2.h>
 
-#if LIBGIT2_VER_MAJOR != 1 || LIBGIT2_VER_MINOR < 2 || LIBGIT2_VER_MINOR > 2
-# error "Invalid libgit2 version; this git2go supports libgit2 between v1.2.0 and v1.2.0"
+#if LIBGIT2_VER_MAJOR != 1 || LIBGIT2_VER_MINOR < 2 || LIBGIT2_VER_MINOR > 3
+# error "Invalid libgit2 version; this git2go supports libgit2 between v1.2.0 and v1.3.0"
 #endif
 */
 import "C"

Makefile

@@ -2,6 +2,10 @@ TEST_ARGS ?= --count=1
 
 default: test
 
+
+generate: static-build/install/lib/libgit2.a
+	go generate --tags "static" ./...
+
 # System library
 # ==============
 # This uses whatever version of libgit2 can be found in the system.

README.md

@@ -1,6 +1,6 @@
 git2go
 ======
-[![GoDoc](https://godoc.org/github.com/libgit2/git2go?status.svg)](http://godoc.org/github.com/libgit2/git2go) [![Build Status](https://travis-ci.org/libgit2/git2go.svg?branch=main)](https://travis-ci.org/libgit2/git2go)
+[![GoDoc](https://godoc.org/github.com/libgit2/git2go?status.svg)](http://godoc.org/github.com/libgit2/git2go/v32) [![Build Status](https://travis-ci.org/libgit2/git2go.svg?branch=main)](https://travis-ci.org/libgit2/git2go)
 
 Go bindings for [libgit2](http://libgit2.github.com/).
 
@@ -78,7 +78,7 @@ In order to let Go pass the correct flags to `pkg-config`, `-tags static` needs
 
 One thing to take into account is that since Go expects the `pkg-config` file to be within the same directory where `make install-static` was called, so the `go.mod` file may need to have a [`replace` directive](https://github.com/golang/go/wiki/Modules#when-should-i-use-the-replace-directive) so that the correct setup is achieved. So if `git2go` is checked out at `$GOPATH/src/github.com/libgit2/git2go` and your project at `$GOPATH/src/github.com/my/project`, the `go.mod` file of `github.com/my/project` might need to have a line like
 
-    replace github.com/libgit2/git2go/v32 ../../libgit2/git2go
+    replace github.com/libgit2/git2go/v32 => ../../libgit2/git2go
 
 Parallelism and network operations
 ----------------------------------

clone_test.go

@@ -2,6 +2,7 @@ package git
 
 import (
 	"io/ioutil"
+	"os"
 	"testing"
 )
 
@@ -70,3 +71,17 @@ func TestCloneWithCallback(t *testing.T) {
 	}
 	defer remote.Free()
 }
+
+// TestCloneWithExternalHTTPUrl
+func TestCloneWithExternalHTTPUrl(t *testing.T) {
+
+	path, err := ioutil.TempDir("", "git2go")
+	defer os.RemoveAll(path)
+
+	// clone the repo
+	url := "https://github.com/libgit2/TestGitRepository"
+	_, err = Clone(url, path, &CloneOptions{})
+	if err != nil {
+		t.Fatal("cannot clone remote repo via https, error: ", err)
+	}
+}

git.go

@@ -14,6 +14,7 @@ import (
 	"unsafe"
 )
 
+//go:generate stringer -type ErrorClass -trimprefix ErrorClass -tags static
 type ErrorClass int
 
 const (
@@ -48,6 +49,7 @@ const (
 	ErrorClassPatch      ErrorClass = C.GIT_ERROR_PATCH
 )
 
+//go:generate stringer -type ErrorCode -trimprefix ErrorCode -tags static
 type ErrorCode int
 
 const (

rebase.go

@@ -318,7 +318,7 @@ func (r *Repository) InitRebase(branch *AnnotatedCommit, upstream *AnnotatedComm
 		return nil, MakeGitError(ret)
 	}
 
-	return newRebaseFromC(ptr, cOpts), nil
+	return newRebaseFromC(ptr, r, cOpts), nil
 }
 
 // OpenRebase opens an existing rebase that was previously started by either an invocation of InitRebase or by another client.
@@ -340,7 +340,7 @@ func (r *Repository) OpenRebase(opts *RebaseOptions) (*Rebase, error) {
 		return nil, MakeGitError(ret)
 	}
 
-	return newRebaseFromC(ptr, cOpts), nil
+	return newRebaseFromC(ptr, r, cOpts), nil
 }
 
 // OperationAt gets the rebase operation specified by the given index.
@@ -392,6 +392,27 @@ func (rebase *Rebase) Next() (*RebaseOperation, error) {
 	return newRebaseOperationFromC(ptr), nil
 }
 
+// InmemoryIndex gets the index produced by the last operation, which is the
+// result of `Next()` and which will be committed by the next invocation of
+// `Commit()`. This is useful for resolving conflicts in an in-memory rebase
+// before committing them.
+//
+// This is only applicable for in-memory rebases; for rebases within a working
+// directory, the changes were applied to the repository's index.
+func (rebase *Rebase) InmemoryIndex() (*Index, error) {
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	var ptr *C.git_index
+	err := C.git_rebase_inmemory_index(&ptr, rebase.ptr)
+	runtime.KeepAlive(rebase)
+	if err < 0 {
+		return nil, MakeGitError(err)
+	}
+
+	return newIndexFromC(ptr, rebase.r), nil
+}
+
 // Commit commits the current patch.
 // You must have resolved any conflicts that were introduced during the patch application from the Next() invocation.
 func (rebase *Rebase) Commit(ID *Oid, author, committer *Signature, message string) error {
@@ -457,8 +478,8 @@ func (r *Rebase) Free() {
 	freeRebaseOptions(r.options)
 }
 
-func newRebaseFromC(ptr *C.git_rebase, opts *C.git_rebase_options) *Rebase {
-	rebase := &Rebase{ptr: ptr, options: opts}
+func newRebaseFromC(ptr *C.git_rebase, repo *Repository, opts *C.git_rebase_options) *Rebase {
+    rebase := &Rebase{ptr: ptr, r: repo, options: opts}
 	runtime.SetFinalizer(rebase, (*Rebase).Free)
 	return rebase
 }

rebase_test.go

@@ -14,6 +14,80 @@ import (
 
 // Tests
 
+func TestRebaseInMemoryWithConflict(t *testing.T) {
+	repo := createTestRepo(t)
+	defer cleanupTestRepo(t, repo)
+	seedTestRepo(t, repo)
+
+    // Create two branches with common history, where both modify "common-file"
+    // in a conflicting way.
+    _, err := commitSomething(repo, "common-file", "a\nb\nc\n", commitOptions{})
+    checkFatal(t, err)
+	checkFatal(t, createBranch(repo, "branch-a"))
+	checkFatal(t, createBranch(repo, "branch-b"))
+
+	checkFatal(t, repo.SetHead("refs/heads/branch-a"))
+    _, err = commitSomething(repo, "common-file", "1\nb\nc\n", commitOptions{})
+    checkFatal(t, err)
+
+	checkFatal(t, repo.SetHead("refs/heads/branch-b"))
+    _, err = commitSomething(repo, "common-file", "x\nb\nc\n", commitOptions{})
+    checkFatal(t, err)
+
+	branchA, err := repo.LookupBranch("branch-a", BranchLocal)
+    checkFatal(t, err)
+	onto, err := repo.AnnotatedCommitFromRef(branchA.Reference)
+    checkFatal(t, err)
+
+    // We then rebase "branch-b" onto "branch-a" in-memory, which should result
+    // in a conflict.
+    rebase, err := repo.InitRebase(nil, nil, onto, &RebaseOptions{InMemory: 1})
+    checkFatal(t, err)
+
+    _, err = rebase.Next()
+	checkFatal(t, err)
+
+    index, err := rebase.InmemoryIndex()
+	checkFatal(t, err)
+
+    // We simply resolve the conflict and commit the rebase.
+    if !index.HasConflicts() {
+        t.Fatal("expected index to have conflicts")
+    }
+
+    conflict, err := index.Conflict("common-file")
+    checkFatal(t, err)
+
+    resolvedBlobID, err := repo.CreateBlobFromBuffer([]byte("resolved contents"))
+    checkFatal(t, err)
+
+    resolvedEntry := *conflict.Our
+    resolvedEntry.Id = resolvedBlobID
+    checkFatal(t, index.Add(&resolvedEntry))
+    checkFatal(t, index.RemoveConflict("common-file"))
+
+    var commitID Oid
+    checkFatal(t, rebase.Commit(&commitID, signature(), signature(), "rebased message"))
+    checkFatal(t, rebase.Finish())
+
+    // And then assert that we can look up the new merge commit, and that the
+    // "common-file" has the expected contents.
+    commit, err := repo.LookupCommit(&commitID)
+    checkFatal(t, err)
+    if commit.Message() != "rebased message" {
+        t.Fatalf("unexpected commit message %q", commit.Message())
+    }
+
+    tree, err := commit.Tree()
+    checkFatal(t, err)
+
+    blob, err := repo.LookupBlob(tree.EntryByName("common-file").Id)
+    checkFatal(t, err)
+    if string(blob.Contents()) != "resolved contents" {
+        t.Fatalf("unexpected resolved blob contents %q", string(blob.Contents()))
+    }
+}
+
 func TestRebaseAbort(t *testing.T) {
 	// TEST DATA
 

refspec.go

@@ -0,0 +1,149 @@
+package git
+
+/*
+#include <git2.h>
+*/
+import "C"
+import (
+	"runtime"
+	"unsafe"
+)
+
+type Refspec struct {
+	doNotCompare
+	ptr *C.git_refspec
+}
+
+// ParseRefspec parses a given refspec string
+func ParseRefspec(input string, isFetch bool) (*Refspec, error) {
+	var ptr *C.git_refspec
+
+	cinput := C.CString(input)
+	defer C.free(unsafe.Pointer(cinput))
+
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ret := C.git_refspec_parse(&ptr, cinput, cbool(isFetch))
+	if ret < 0 {
+		return nil, MakeGitError(ret)
+	}
+
+	spec := &Refspec{ptr: ptr}
+	runtime.SetFinalizer(spec, (*Refspec).Free)
+	return spec, nil
+}
+
+// Free releases a refspec object which has been created by ParseRefspec
+func (s *Refspec) Free() {
+	runtime.SetFinalizer(s, nil)
+	C.git_refspec_free(s.ptr)
+}
+
+// Direction returns the refspec's direction
+func (s *Refspec) Direction() ConnectDirection {
+	direction := C.git_refspec_direction(s.ptr)
+	return ConnectDirection(direction)
+}
+
+// Src returns the refspec's source specifier
+func (s *Refspec) Src() string {
+	var ret string
+	cstr := C.git_refspec_src(s.ptr)
+
+	if cstr != nil {
+		ret = C.GoString(cstr)
+	}
+
+	runtime.KeepAlive(s)
+	return ret
+}
+
+// Dst returns the refspec's destination specifier
+func (s *Refspec) Dst() string {
+	var ret string
+	cstr := C.git_refspec_dst(s.ptr)
+
+	if cstr != nil {
+		ret = C.GoString(cstr)
+	}
+
+	runtime.KeepAlive(s)
+	return ret
+}
+
+// Force returns the refspec's force-update setting
+func (s *Refspec) Force() bool {
+	force := C.git_refspec_force(s.ptr)
+	return force != 0
+}
+
+// String returns the refspec's string representation
+func (s *Refspec) String() string {
+	var ret string
+	cstr := C.git_refspec_string(s.ptr)
+
+	if cstr != nil {
+		ret = C.GoString(cstr)
+	}
+
+	runtime.KeepAlive(s)
+	return ret
+}
+
+// SrcMatches checks if a refspec's source descriptor matches a reference
+func (s *Refspec) SrcMatches(refname string) bool {
+	cname := C.CString(refname)
+	defer C.free(unsafe.Pointer(cname))
+
+	matches := C.git_refspec_src_matches(s.ptr, cname)
+	return matches != 0
+}
+
+// SrcMatches checks if a refspec's destination descriptor matches a reference
+func (s *Refspec) DstMatches(refname string) bool {
+	cname := C.CString(refname)
+	defer C.free(unsafe.Pointer(cname))
+
+	matches := C.git_refspec_dst_matches(s.ptr, cname)
+	return matches != 0
+}
+
+// Transform a reference to its target following the refspec's rules
+func (s *Refspec) Transform(refname string) (string, error) {
+	buf := C.git_buf{}
+
+	cname := C.CString(refname)
+	defer C.free(unsafe.Pointer(cname))
+
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ret := C.git_refspec_transform(&buf, s.ptr, cname)
+	if ret < 0 {
+		return "", MakeGitError(ret)
+	}
+	defer C.git_buf_dispose(&buf)
+
+	return C.GoString(buf.ptr), nil
+}
+
+// Rtransform converts a target reference to its source reference following the
+// refspec's rules
+func (s *Refspec) Rtransform(refname string) (string, error) {
+	buf := C.git_buf{}
+
+	cname := C.CString(refname)
+	defer C.free(unsafe.Pointer(cname))
+
+	runtime.LockOSThread()
+	defer runtime.UnlockOSThread()
+
+	ret := C.git_refspec_rtransform(&buf, s.ptr, cname)
+	if ret < 0 {
+		return "", MakeGitError(ret)
+	}
+	defer C.git_buf_dispose(&buf)
+
+	return C.GoString(buf.ptr), nil
+}

refspec_test.go

@@ -0,0 +1,75 @@
+package git
+
+import (
+	"testing"
+)
+
+func TestRefspec(t *testing.T) {
+	t.Parallel()
+
+	const (
+		input      = "+refs/heads/*:refs/remotes/origin/*"
+		mainLocal  = "refs/heads/main"
+		mainRemote = "refs/remotes/origin/main"
+	)
+
+	refspec, err := ParseRefspec(input, true)
+	checkFatal(t, err)
+
+	// Accessors
+
+	s := refspec.String()
+	if s != input {
+		t.Errorf("expected string %q, got %q", input, s)
+	}
+
+	if d := refspec.Direction(); d != ConnectDirectionFetch {
+		t.Errorf("expected fetch refspec, got direction %v", d)
+	}
+
+	if pat, expected := refspec.Src(), "refs/heads/*"; pat != expected {
+		t.Errorf("expected refspec src %q, got %q", expected, pat)
+	}
+
+	if pat, expected := refspec.Dst(), "refs/remotes/origin/*"; pat != expected {
+		t.Errorf("expected refspec dst %q, got %q", expected, pat)
+	}
+
+	if !refspec.Force() {
+		t.Error("expected refspec force flag")
+	}
+
+	// SrcMatches
+
+	if !refspec.SrcMatches(mainLocal) {
+		t.Errorf("refspec source did not match %q", mainLocal)
+	}
+
+	if refspec.SrcMatches("refs/tags/v1.0") {
+		t.Error("refspec source matched under refs/tags")
+	}
+
+	// DstMatches
+
+	if !refspec.DstMatches(mainRemote) {
+		t.Errorf("refspec destination did not match %q", mainRemote)
+	}
+
+	if refspec.DstMatches("refs/tags/v1.0") {
+		t.Error("refspec destination matched under refs/tags")
+	}
+
+	// Transforms
+
+	fromLocal, err := refspec.Transform(mainLocal)
+	checkFatal(t, err)
+	if fromLocal != mainRemote {
+		t.Errorf("transform by refspec returned %s; expected %s", fromLocal, mainRemote)
+	}
+
+	fromRemote, err := refspec.Rtransform(mainRemote)
+	checkFatal(t, err)
+	if fromRemote != mainLocal {
+		t.Errorf("rtransform by refspec returned %s; expected %s", fromRemote, mainLocal)
+	}
+}

remote.go

@@ -182,6 +182,9 @@ type Remote struct {
 	ptr       *C.git_remote
 	callbacks RemoteCallbacks
 	repo      *Repository
+	// weak indicates that a remote is a weak pointer and should not be
+	// freed.
+	weak bool
 }
 
 type remotePointerList struct {
@@ -288,6 +291,9 @@ type PushOptions struct {
 
 	// Headers are extra headers for the push operation.
 	Headers []string
+
+	// Proxy options to use for this push operation
+	ProxyOptions ProxyOptions
 }
 
 type RemoteHead struct {
@@ -602,6 +608,9 @@ func (r *Remote) free() {
 // Free releases the resources of the Remote.
 func (r *Remote) Free() {
 	r.repo.Remotes.untrackRemote(r)
+	if r.weak {
+		return
+	}
 	r.free()
 }
 
@@ -995,6 +1004,7 @@ func populatePushOptions(copts *C.git_push_options, opts *PushOptions, errorTarg
 		strings: makeCStringsFromStrings(opts.Headers),
 	}
 	populateRemoteCallbacks(&copts.callbacks, &opts.RemoteCallbacks, errorTarget)
+	populateProxyOptions(&copts.proxy_opts, &opts.ProxyOptions)
 	return copts
 }
 
@@ -1004,6 +1014,7 @@ func freePushOptions(copts *C.git_push_options) {
 	}
 	untrackCallbacksPayload(&copts.callbacks)
 	freeStrarray(&copts.custom_headers)
+	freeProxyOptions(&copts.proxy_opts)
 }
 
 // Fetch performs a fetch operation. refspecs specifies which refspecs
@@ -1231,3 +1242,12 @@ func freeRemoteCreateOptions(ptr *C.git_remote_create_options) {
 	C.free(unsafe.Pointer(ptr.name))
 	C.free(unsafe.Pointer(ptr.fetchspec))
 }
+
+// createNewEmptyRemote used to get a new empty object of *Remote
+func createNewEmptyRemote() *Remote {
+	return &Remote{
+		callbacks: RemoteCallbacks{},
+		repo:      nil,
+		weak:      false,
+	}
+}

settings.go

@@ -101,6 +101,14 @@ func EnableStrictHashVerification(enabled bool) error {
 	}
 }
 
+func EnableFsyncGitDir(enabled bool) error {
+	if enabled {
+		return setSizet(C.GIT_OPT_ENABLE_FSYNC_GITDIR, 1)
+	} else {
+		return setSizet(C.GIT_OPT_ENABLE_FSYNC_GITDIR, 0)
+	}
+}
+
 func CachedMemory() (current int, allowed int, err error) {
 	return getSizetSizet(C.GIT_OPT_GET_CACHED_MEMORY)
 }

settings_test.go

@@ -65,6 +65,14 @@ func TestEnableStrictHashVerification(t *testing.T) {
 	checkFatal(t, err)
 }
 
+func TestEnableFsyncGitDir(t *testing.T) {
+	err := EnableFsyncGitDir(false)
+	checkFatal(t, err)
+
+	err = EnableFsyncGitDir(true)
+	checkFatal(t, err)
+}
+
 func TestCachedMemory(t *testing.T) {
 	current, allowed, err := CachedMemory()
 	checkFatal(t, err)

ssh.go

@@ -17,6 +17,7 @@ import (
 	"net"
 	"net/url"
 	"runtime"
+	"strings"
 	"unsafe"
 
 	"golang.org/x/crypto/ssh"
@@ -74,6 +75,13 @@ func (t *sshSmartSubtransport) Action(urlString string, action SmartServiceActio
 		return nil, err
 	}
 
+	// Escape \ and '.
+	uPath := strings.Replace(u.Path, `\`, `\\`, -1)
+	uPath = strings.Replace(uPath, `'`, `\'`, -1)
+
+	// TODO: Add percentage decode similar to libgit2.
+	// Refer: https://github.com/libgit2/libgit2/blob/358a60e1b46000ea99ef10b4dd709e92f75ff74b/src/str.c#L455-L481
+
 	var cmd string
 	switch action {
 	case SmartServiceActionUploadpackLs, SmartServiceActionUploadpack:
@@ -83,7 +91,7 @@ func (t *sshSmartSubtransport) Action(urlString string, action SmartServiceActio
 			}
 			t.Close()
 		}
-		cmd = fmt.Sprintf("git-upload-pack %q", u.Path)
+		cmd = fmt.Sprintf("git-upload-pack '%s'", uPath)
 
 	case SmartServiceActionReceivepackLs, SmartServiceActionReceivepack:
 		if t.currentStream != nil {
@@ -92,7 +100,7 @@ func (t *sshSmartSubtransport) Action(urlString string, action SmartServiceActio
 			}
 			t.Close()
 		}
-		cmd = fmt.Sprintf("git-receive-pack %q", u.Path)
+		cmd = fmt.Sprintf("git-receive-pack '%s'", uPath)
 
 	default:
 		return nil, fmt.Errorf("unexpected action: %v", action)

transport.go

@@ -22,7 +22,6 @@ void _go_git_setup_smart_subtransport_stream(_go_managed_smart_subtransport_stre
 */
 import "C"
 import (
-	"errors"
 	"fmt"
 	"io"
 	"reflect"
@@ -306,8 +305,10 @@ func smartTransportCallback(
 	registeredSmartTransport := pointerHandles.Get(handle).(*RegisteredSmartTransport)
 	remote, ok := remotePointers.get(owner)
 	if !ok {
-		err := errors.New("remote pointer not found")
-		return setCallbackError(errorMessage, err)
+		// create a new empty remote and set it
+		// as a weak pointer, so that control stays in golang
+		remote = createNewEmptyRemote()
+		remote.weak = true
 	}
 
 	managed := &managedSmartSubtransport{