Add Repository information to database

internal/meta/db.go

@@ -8,6 +8,8 @@ type DB interface {
 // ReadTx is a transaction that can be used to read from the database.
 // It presents a consistent view of the underlying database.
 type ReadTx interface {
+	// Repository returns the repository information.
+	Repository() (Repository, bool)
 	// Branch returns the branch with the given name. If no such branch exists,
 	// the second return value is false.
 	Branch(name string) (Branch, bool)
@@ -28,4 +30,6 @@ type WriteTx interface {
 	Commit() error
 	// SetBranch sets the given branch in the database.
 	SetBranch(branch Branch)
+	// SetRepository sets the repository information in the database.
+	SetRepository(repository Repository)
 }

internal/meta/jsonfiledb/readtx.go

@@ -11,11 +11,15 @@ type readTx struct {
 
 var _ meta.ReadTx = &readTx{}
 
+func (tx *readTx) Repository() (meta.Repository, bool) {
+	return tx.state.RepositoryState, tx.state.RepositoryState.ID != ""
+}
+
 func (tx *readTx) Branch(name string) (branch meta.Branch, ok bool) {
-	branch, ok = tx.state.Branches[name]
+	branch, ok = tx.state.BranchState[name]
 	return
 }
 
 func (tx *readTx) AllBranches() map[string]meta.Branch {
-	return maputils.Copy(tx.state.Branches)
+	return maputils.Copy(tx.state.BranchState)
 }

internal/meta/jsonfiledb/state.go

@@ -24,23 +24,14 @@ func readState(filepath string) (*state, error) {
 }
 
 type state struct {
-	Branches map[string]meta.Branch `json:"branches"`
-}
-
-var _ meta.ReadTx = &state{}
-
-func (d *state) Branch(name string) (meta.Branch, bool) {
-	branch, ok := d.Branches[name]
-	return branch, ok
-}
-
-func (d *state) AllBranches() map[string]meta.Branch {
-	return maputils.Copy(d.Branches)
+	BranchState     map[string]meta.Branch `json:"branches"`
+	RepositoryState meta.Repository        `json:"repository"`
 }
 
 func (d *state) copy() state {
 	return state{
-		maputils.Copy(d.Branches),
+		maputils.Copy(d.BranchState),
+		d.RepositoryState,
 	}
 }
 

internal/meta/jsonfiledb/writetx.go

@@ -7,8 +7,12 @@ type writeTx struct {
 	readTx
 }
 
+func (tx *writeTx) SetRepository(repository meta.Repository) {
+	tx.state.RepositoryState = repository
+}
+
 func (tx *writeTx) SetBranch(branch meta.Branch) {
-	tx.state.Branches[branch.Name] = branch
+	tx.state.BranchState[branch.Name] = branch
 }
 
 func (tx *writeTx) Abort() {