It often be helpful to be able to debug memory usage in Swift on Linux, for example to debug memory leaks.
This is a quick overview of how to generate a report of memory usage for your Swift app. This guide will only show you how to generate the report, not how to analyze it, it might be written up in a blog post later.
First we need to install a tool called Valgrind, which is used to trace memory usage.
.env files can be an easy way to setup Environment variables locally. You can start using a .env files in Vapor 3 by following this small guide.
First setup the vapor-ext package in your Package.swift file:
.package(url: "https://github.com/vapor-community/vapor-ext.git", from: "0.1.0"),Next create a .env file in the root of your project:
| var databases = DatabasesConfig() | |
| let databaseConfig: PostgreSQLDatabaseConfig | |
| if let url = Environment.get("DB_POSTGRESQL") { | |
| databaseConfig = try PostgreSQLDatabaseConfig(url: url) | |
| } else { | |
| // Local configuration | |
| let hostname = "localhost" | |
| let username = "vapor" | |
| let password = "password" | |
| let database = "vapor" |