identity: wip caching

1 files changed, 48 insertions, 0 deletions

diff --git a/cache/identity_excerpt.go b/cache/identity_excerpt.go
new file mode 100644
index 00000000..7bc660b6
--- /dev/null
+++ b/cache/identity_excerpt.go
@@ -0,0 +1,48 @@
+package cache
+
+import (
+	"encoding/gob"
+
+	"github.com/MichaelMure/git-bug/identity"
+)
+
+// IdentityExcerpt hold a subset of the identity values to be able to sort and
+// filter identities efficiently without having to read and compile each raw
+// identity.
+type IdentityExcerpt struct {
+	Id string
+
+	Name  string
+	Login string
+}
+
+func NewIdentityExcerpt(i *identity.Identity) *IdentityExcerpt {
+	return &IdentityExcerpt{
+		Id:    i.Id(),
+		Name:  i.Name(),
+		Login: i.Login(),
+	}
+}
+
+// Package initialisation used to register the type for (de)serialization
+func init() {
+	gob.Register(IdentityExcerpt{})
+}
+
+/*
+ * Sorting
+ */
+
+type IdentityById []*IdentityExcerpt
+
+func (b IdentityById) Len() int {
+	return len(b)
+}
+
+func (b IdentityById) Less(i, j int) bool {
+	return b[i].Id < b[j].Id
+}
+
+func (b IdentityById) Swap(i, j int) {
+	b[i], b[j] = b[j], b[i]
+}