feat: Add reset-password command (#1380)

* allow non-destructively checking if database needs to be migrated

* feat: Add reset-password command

* fix linter errors

* clean up reset-password usage prompt

* Add confirmation to reset-password command

* Ping database before checking migration, to improve error message

coderd/database/migrate_test.go

@@ -4,8 +4,11 @@ package database_test
 
 import (
 	"database/sql"
+	"fmt"
 	"testing"
 
+	"github.com/golang-migrate/migrate/v4/source"
+	"github.com/golang-migrate/migrate/v4/source/stub"
 	"github.com/stretchr/testify/require"
 	"go.uber.org/goleak"
 
@@ -75,3 +78,54 @@ func testSQLDB(t testing.TB) *sql.DB {
 
 	return db
 }
+
+// paralleltest linter doesn't correctly handle table-driven tests (https://github.com/kunwardeep/paralleltest/issues/8)
+// nolint:paralleltest
+func TestCheckLatestVersion(t *testing.T) {
+	t.Parallel()
+
+	type test struct {
+		currentVersion   uint
+		existingVersions []uint
+		expectedResult   string
+	}
+
+	tests := []test{
+		// successful cases
+		{1, []uint{1}, ""},
+		{3, []uint{1, 2, 3}, ""},
+		{3, []uint{1, 3}, ""},
+
+		// failure cases
+		{1, []uint{1, 2}, "current version is 1, but later version 2 exists"},
+		{2, []uint{1, 2, 3}, "current version is 2, but later version 3 exists"},
+		{4, []uint{1, 2, 3}, "get previous migration: prev for version 4 : file does not exist"},
+		{4, []uint{1, 2, 3, 5}, "get previous migration: prev for version 4 : file does not exist"},
+	}
+
+	for i, tc := range tests {
+		i, tc := i, tc
+		t.Run(fmt.Sprintf("entry %d", i), func(t *testing.T) {
+			t.Parallel()
+
+			driver, _ := stub.WithInstance(nil, &stub.Config{})
+			stub, ok := driver.(*stub.Stub)
+			require.True(t, ok)
+			for _, version := range tc.existingVersions {
+				stub.Migrations.Append(&source.Migration{
+					Version:    version,
+					Identifier: "",
+					Direction:  source.Up,
+					Raw:        "",
+				})
+			}
+
+			err := database.CheckLatestVersion(driver, tc.currentVersion)
+			var errMessage string
+			if err != nil {
+				errMessage = err.Error()
+			}
+			require.Equal(t, tc.expectedResult, errMessage)
+		})
+	}
+}