patch/switch: add switch sub-cmd

Implement the :project switch command. Switch between different
projects.

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

2 files changed, 83 insertions, 0 deletions

diff --git a/commands/patch/switch.go b/commands/patch/switch.go
new file mode 100644
index 00000000..b1193be7
--- /dev/null
+++ b/commands/patch/switch.go
@@ -0,0 +1,54 @@
+package patch
+
+import (
+	"fmt"
+	"time"
+
+	"git.sr.ht/~rjarry/aerc/app"
+	"git.sr.ht/~rjarry/aerc/commands"
+	"git.sr.ht/~rjarry/aerc/lib/pama"
+	"git.sr.ht/~rjarry/aerc/log"
+)
+
+type Switch struct {
+	Project string `opt:"project" complete:"Complete"`
+}
+
+func init() {
+	register(Switch{})
+}
+
+func (Switch) Aliases() []string {
+	return []string{"switch"}
+}
+
+func (s Switch) Complete(arg string) []string {
+	m := pama.New()
+	names, err := m.Names()
+	if err != nil {
+		log.Errorf("failed to get completion: %v", err)
+		return nil
+	}
+	cur, err := m.CurrentProject()
+	if err == nil {
+		i := 0
+		for ; i < len(names); i++ {
+			if cur.Name == names[i] {
+				names = append(names[:i], names[i+1:]...)
+				break
+			}
+		}
+	}
+	return commands.FilterList(names, arg, nil)
+}
+
+func (s Switch) Execute(_ []string) error {
+	name := s.Project
+	err := pama.New().SwitchProject(name)
+	if err != nil {
+		return err
+	}
+	app.PushStatus(fmt.Sprintf("Project switched to '%s'", name),
+		10*time.Second)
+	return nil
+}
diff --git a/lib/pama/switch.go b/lib/pama/switch.go
new file mode 100644
index 00000000..4d6b25f7
--- /dev/null
+++ b/lib/pama/switch.go
@@ -0,0 +1,29 @@
+package pama
+
+import (
+	"fmt"
+)
+
+func (m PatchManager) SwitchProject(name string) error {
+	c, err := m.CurrentProject()
+	if err == nil {
+		if c.Name == name {
+			return nil
+		}
+	}
+	names, err := m.store().Names()
+	if err != nil {
+		return storeErr(err)
+	}
+	found := false
+	for _, n := range names {
+		if n == name {
+			found = true
+			break
+		}
+	}
+	if !found {
+		return fmt.Errorf("Project '%s' not found", name)
+	}
+	return storeErr(m.store().SetCurrent(name))
+}