Add config.toml for meta tool

4 files changed, 37 insertions, 0 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 7bb0305295..4058c2c7fc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2461,9 +2461,11 @@ dependencies = [
  "mullvad-version",
  "rand 0.8.5",
  "reqwest",
+ "serde",
  "serde_json",
  "sha2",
  "tokio",
+ "toml 0.8.19",
 ]
 
 [[package]]
diff --git a/mullvad-update/meta/Cargo.toml b/mullvad-update/meta/Cargo.toml
index 37dd6beb24..18dfd2bdd0 100644
--- a/mullvad-update/meta/Cargo.toml
+++ b/mullvad-update/meta/Cargo.toml
@@ -18,8 +18,10 @@ hex = { version = "0.4" }
 rand = { version = "0.8.5" }
 reqwest = { version = "0.12.9", features = ["rustls-tls"] }
 serde_json = { workspace = true }
+serde = { workspace = true }
 sha2 = "0.10"
 tokio = { version = "1", features = ["full"] }
+toml = "0.8"
 
 mullvad-version = { path = "../../mullvad-version", features = ["serde"] }
 mullvad-update = { path = "../", features = ["client", "sign"] }
diff --git a/mullvad-update/meta/src/config.rs b/mullvad-update/meta/src/config.rs
new file mode 100644
index 0000000000..bbfa923cc6
--- /dev/null
+++ b/mullvad-update/meta/src/config.rs
@@ -0,0 +1,30 @@
+//! TOML configuration file
+
+use anyhow::Context;
+use serde::{Deserialize, Serialize};
+use tokio::{fs, io};
+
+/// Path to the configuration file. Currently a file in the working directory.
+const CONFIG_FILENAME: &str = "config.toml";
+
+#[derive(Default, Deserialize, Serialize)]
+pub struct Config {
+    /// URLs to use as bases for installers.
+    /// Files are expected at (example): `<base>/MullvadVPN-2025.1.exe`.
+    pub base_urls: Vec<String>,
+}
+
+impl Config {
+    pub async fn load_or_create() -> anyhow::Result<Self> {
+        println!("Reading {CONFIG_FILENAME}");
+
+        match fs::read_to_string(CONFIG_FILENAME).await {
+            Ok(toml_str) => toml::from_str(&toml_str).context("Failed to parse TOML file"),
+            Err(err) if err.kind() == io::ErrorKind::NotFound => {
+                println!("Creating default {CONFIG_FILENAME}");
+                Ok(Self::default())
+            }
+            Err(err) => Err(err).context(format!("Failed to read {CONFIG_FILENAME}")),
+        }
+    }
+}
diff --git a/mullvad-update/meta/src/main.rs b/mullvad-update/meta/src/main.rs
index f0f600db53..8c3cd478a9 100644
--- a/mullvad-update/meta/src/main.rs
+++ b/mullvad-update/meta/src/main.rs
@@ -2,6 +2,7 @@
 
 use anyhow::{bail, Context};
 use clap::Parser;
+use config::Config;
 use io_util::create_dir_and_write;
 
 use mullvad_update::format::{self, key, SignedResponse};
@@ -9,6 +10,7 @@ use mullvad_update::format::{self, key, SignedResponse};
 use platform::Platform;
 
 mod artifacts;
+mod config;
 mod github;
 mod io_util;
 mod platform;
@@ -110,6 +112,7 @@ pub enum Opt {
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     let opt = Opt::parse();
+    let config = Config::load_or_create().await?;
 
     match opt {
         Opt::GenerateKey => {