Remove jsonfile and add tag capability

README.md

@@ -95,6 +95,9 @@ Commands:
   down <count> <file>
     Apply a specific number of rollbacks to the database.
 
+  tag <name> <file>
+    Apply a tag to the latest changeset in the database.
+
   status
     Output the list of migrations already applied to the database.
 ```

cmd/rove/main.go

@@ -28,6 +28,10 @@ var (
 	cDBDownCount = cDBDown.Arg("count", "Number of rollbacks [int].").Required().Int()
 	cDBDownFile  = cDBDown.Arg("file", "Filename of the migration file [string].").Required().String()
 
+	cDBTag     = app.Command("tag", "Apply a tag to the latest changeset in the database.")
+	cDBTagName = cDBTag.Arg("name", "Name of the tag [string].").Required().String()
+	cDBTagFile = cDBTag.Arg("file", "Filename of the migration file [string].").Required().String()
+
 	cDBStatus = app.Command("status", "Output the list of migrations already applied to the database.")
 )
 
@@ -66,8 +70,12 @@ func main() {
 		r := rove.NewFileMigration(db, *cDBDownFile)
 		r.Verbose = true
 		err = r.Reset(*cDBDownCount)
+	case cDBTag.FullCommand():
+		r := rove.NewFileMigration(db, *cDBTagFile)
+		r.Verbose = true
+		err = r.Tag(*cDBTagName)
 	case cDBStatus.FullCommand():
-		r := rove.NewFileMigration(db, *cDBDownFile)
+		r := rove.NewFileMigration(db, "")
 		r.Verbose = true
 		_, err = r.Status()
 	}

interface.go

@@ -5,21 +5,24 @@ type Changelog interface {
 	// Initialize should perform any work to set up the changelog or return an
 	// error.
 	Initialize() error
+	// BeginTx should start a transaction on the changelog.
+	BeginTx() (Transaction, error)
 	// ChangesetApplied should return the checksum from the changelog of a
 	// matching changeset, an error, or a blank string if the changeset doesn't
 	// exist in the changelog.
 	ChangesetApplied(id string, author string, filename string) (checksum string, err error)
-	// BeginTx should start a transaction on the changelog.
-	BeginTx() (Transaction, error)
+	// Changesets should return a list of the changesets or return an error.
+	Changesets(reverse bool) ([]Changeset, error)
 	// Count should return the number of changesets in the changelog or return
 	// an error.
 	Count() (count int, err error)
 	// Insert should add a new changeset to the changelog or return an error.
 	Insert(id, author, filename string, count int, checksum, description, version string) error
-	// Changesets should return a list of the changesets or return an error.
-	Changesets(reverse bool) ([]Changeset, error)
 	// Delete should remove the changeset from the changelog or return an error.
 	Delete(id, author, filename string) error
+	// Tag should add a tag to the latest changeset in the database or return
+	// an error.
+	Tag(id, author, filename, tag string) error
 }
 
 // Transaction represents a changelog transaction.