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-rw-r--r--_examples/azure_devops/main.go56
-rw-r--r--plumbing/protocol/packp/srvresp.go28
-rw-r--r--plumbing/protocol/packp/srvresp_test.go17
-rw-r--r--plumbing/protocol/packp/uppackresp.go2
-rw-r--r--plumbing/protocol/packp/uppackresp_test.go6
5 files changed, 97 insertions, 12 deletions
diff --git a/_examples/azure_devops/main.go b/_examples/azure_devops/main.go
new file mode 100644
index 0000000..9c02ca0
--- /dev/null
+++ b/_examples/azure_devops/main.go
@@ -0,0 +1,56 @@
+package main
+
+import (
+ "fmt"
+ "os"
+
+ git "github.com/go-git/go-git/v5"
+ . "github.com/go-git/go-git/v5/_examples"
+ "github.com/go-git/go-git/v5/plumbing/protocol/packp/capability"
+ "github.com/go-git/go-git/v5/plumbing/transport"
+ "github.com/go-git/go-git/v5/plumbing/transport/http"
+)
+
+func main() {
+ CheckArgs("<url>", "<directory>", "<azuredevops_username>", "<azuredevops_password>")
+ url, directory, username, password := os.Args[1], os.Args[2], os.Args[3], os.Args[4]
+
+ // Clone the given repository to the given directory
+ Info("git clone %s %s", url, directory)
+
+ // Azure DevOps requires capabilities multi_ack / multi_ack_detailed,
+ // which are not fully implemented and by default are included in
+ // transport.UnsupportedCapabilities.
+ //
+ // The initial clone operations require a full download of the repository,
+ // and therefore those unsupported capabilities are not as crucial, so
+ // by removing them from that list allows for the first clone to work
+ // successfully.
+ //
+ // Additional fetches will yield issues, therefore work always from a clean
+ // clone until those capabilities are fully supported.
+ //
+ // New commits and pushes against a remote worked without any issues.
+ transport.UnsupportedCapabilities = []capability.Capability{
+ capability.ThinPack,
+ }
+
+ r, err := git.PlainClone(directory, false, &git.CloneOptions{
+ Auth: &http.BasicAuth{
+ Username: username,
+ Password: password,
+ },
+ URL: url,
+ Progress: os.Stdout,
+ })
+ CheckIfError(err)
+
+ // ... retrieving the branch being pointed by HEAD
+ ref, err := r.Head()
+ CheckIfError(err)
+ // ... retrieving the commit object
+ commit, err := r.CommitObject(ref.Hash())
+ CheckIfError(err)
+
+ fmt.Println(commit)
+}
diff --git a/plumbing/protocol/packp/srvresp.go b/plumbing/protocol/packp/srvresp.go
index b3a7ee8..8cd0a72 100644
--- a/plumbing/protocol/packp/srvresp.go
+++ b/plumbing/protocol/packp/srvresp.go
@@ -21,11 +21,6 @@ type ServerResponse struct {
// Decode decodes the response into the struct, isMultiACK should be true, if
// the request was done with multi_ack or multi_ack_detailed capabilities.
func (r *ServerResponse) Decode(reader *bufio.Reader, isMultiACK bool) error {
- // TODO: implement support for multi_ack or multi_ack_detailed responses
- if isMultiACK {
- return errors.New("multi_ack and multi_ack_detailed are not supported")
- }
-
s := pktline.NewScanner(reader)
for s.Scan() {
@@ -48,7 +43,23 @@ func (r *ServerResponse) Decode(reader *bufio.Reader, isMultiACK bool) error {
}
}
- return s.Err()
+ // isMultiACK is true when the remote server advertises the related
+ // capabilities when they are not in transport.UnsupportedCapabilities.
+ //
+ // Users may decide to remove multi_ack and multi_ack_detailed from the
+ // unsupported capabilities list, which allows them to do initial clones
+ // from Azure DevOps.
+ //
+ // Follow-up fetches may error, therefore errors are wrapped with additional
+ // information highlighting that this capabilities are not supported by go-git.
+ //
+ // TODO: Implement support for multi_ack or multi_ack_detailed responses.
+ err := s.Err()
+ if err != nil && isMultiACK {
+ return fmt.Errorf("multi_ack and multi_ack_detailed are not supported: %w", err)
+ }
+
+ return err
}
// stopReading detects when a valid command such as ACK or NAK is found to be
@@ -113,8 +124,9 @@ func (r *ServerResponse) decodeACKLine(line []byte) error {
}
// Encode encodes the ServerResponse into a writer.
-func (r *ServerResponse) Encode(w io.Writer) error {
- if len(r.ACKs) > 1 {
+func (r *ServerResponse) Encode(w io.Writer, isMultiACK bool) error {
+ if len(r.ACKs) > 1 && !isMultiACK {
+ // For further information, refer to comments in the Decode func above.
return errors.New("multi_ack and multi_ack_detailed are not supported")
}
diff --git a/plumbing/protocol/packp/srvresp_test.go b/plumbing/protocol/packp/srvresp_test.go
index 02fab42..aa0af52 100644
--- a/plumbing/protocol/packp/srvresp_test.go
+++ b/plumbing/protocol/packp/srvresp_test.go
@@ -72,8 +72,21 @@ func (s *ServerResponseSuite) TestDecodeMalformed(c *C) {
c.Assert(err, NotNil)
}
+// multi_ack isn't fully implemented, this ensures that Decode ignores that fact,
+// as in some circumstances that's OK to assume so.
+//
+// TODO: Review as part of multi_ack implementation.
func (s *ServerResponseSuite) TestDecodeMultiACK(c *C) {
+ raw := "" +
+ "0031ACK 1111111111111111111111111111111111111111\n" +
+ "0031ACK 6ecf0ef2c2dffb796033e5a02219af86ec6584e5\n" +
+ "00080PACK\n"
+
sr := &ServerResponse{}
- err := sr.Decode(bufio.NewReader(bytes.NewBuffer(nil)), true)
- c.Assert(err, NotNil)
+ err := sr.Decode(bufio.NewReader(bytes.NewBufferString(raw)), true)
+ c.Assert(err, IsNil)
+
+ c.Assert(sr.ACKs, HasLen, 2)
+ c.Assert(sr.ACKs[0], Equals, plumbing.NewHash("1111111111111111111111111111111111111111"))
+ c.Assert(sr.ACKs[1], Equals, plumbing.NewHash("6ecf0ef2c2dffb796033e5a02219af86ec6584e5"))
}
diff --git a/plumbing/protocol/packp/uppackresp.go b/plumbing/protocol/packp/uppackresp.go
index 26ae61e..a485cb7 100644
--- a/plumbing/protocol/packp/uppackresp.go
+++ b/plumbing/protocol/packp/uppackresp.go
@@ -78,7 +78,7 @@ func (r *UploadPackResponse) Encode(w io.Writer) (err error) {
}
}
- if err := r.ServerResponse.Encode(w); err != nil {
+ if err := r.ServerResponse.Encode(w, r.isMultiACK); err != nil {
return err
}
diff --git a/plumbing/protocol/packp/uppackresp_test.go b/plumbing/protocol/packp/uppackresp_test.go
index 260dc57..3f87804 100644
--- a/plumbing/protocol/packp/uppackresp_test.go
+++ b/plumbing/protocol/packp/uppackresp_test.go
@@ -59,6 +59,10 @@ func (s *UploadPackResponseSuite) TestDecodeMalformed(c *C) {
c.Assert(err, NotNil)
}
+// multi_ack isn't fully implemented, this ensures that Decode ignores that fact,
+// as in some circumstances that's OK to assume so.
+//
+// TODO: Review as part of multi_ack implementation.
func (s *UploadPackResponseSuite) TestDecodeMultiACK(c *C) {
req := NewUploadPackRequest()
req.Capabilities.Set(capability.MultiACK)
@@ -67,7 +71,7 @@ func (s *UploadPackResponseSuite) TestDecodeMultiACK(c *C) {
defer res.Close()
err := res.Decode(ioutil.NopCloser(bytes.NewBuffer(nil)))
- c.Assert(err, NotNil)
+ c.Assert(err, IsNil)
}
func (s *UploadPackResponseSuite) TestReadNoDecode(c *C) {
generated by cgit (git 2.34.1) at 2024-11-10 23:44:38 +0000