patch/apply: add apply sub-cmd

Add the :patch apply command to apply a patch set and create a
corresponding tag. The tag command argument can be completed based on
the subject lines of the selected messages. Add a test for the
completion proposal.

Signed-off-by: Koni Marti <koni.marti@gmail.com>
Acked-by: Robin Jarry <robin@jarry.cc>

1 files changed, 16 insertions, 0 deletions

diff --git a/commands/msg/pipe.go b/commands/msg/pipe.go
index b32d7159..ee5cd965 100644
--- a/commands/msg/pipe.go
+++ b/commands/msg/pipe.go
@@ -33,6 +33,10 @@ func (Pipe) Aliases() []string {
 }
 
 func (p Pipe) Execute(args []string) error {
+	return p.Run(nil)
+}
+
+func (p Pipe) Run(cb func()) error {
 	if p.Full && p.Part {
 		return errors.New("-m and -p are mutually exclusive")
 	}
@@ -57,6 +61,15 @@ func (p Pipe) Execute(args []string) error {
 			app.PushError(err.Error())
 			return
 		}
+		if cb != nil {
+			last := term.OnClose
+			term.OnClose = func(err error) {
+				if last != nil {
+					last(err)
+				}
+				cb()
+			}
+		}
 		app.NewTab(term, name)
 	}
 
@@ -89,6 +102,9 @@ func (p Pipe) Execute(args []string) error {
 					ecmd.ProcessState.ExitCode()), 10*time.Second)
 			}
 		}
+		if cb != nil {
+			cb()
+		}
 	}
 
 	app.PushStatus("Fetching messages ...", 10*time.Second)