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>

1 files changed, 29 insertions, 0 deletions

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))
+}