fix: don't use XDG spec, because this is a system service

Cargo.lock

@@ -123,7 +123,6 @@ version = "0.4.0"
 dependencies = [
  "anyhow",
  "cloudflare",
- "directories-next",
  "env_logger",
  "log",
  "reqwest",
@@ -237,27 +236,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "directories-next"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "339ee130d97a610ea5a5872d2bbb130fdf68884ff09d3028b81bec8a1ac23bbc"
-dependencies = [
- "cfg-if",
- "dirs-sys-next",
-]
-
-[[package]]
-name = "dirs-sys-next"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ebda144c4fe02d1f7ea1a7d9641b6fc6b580adcfa024ae48797ecdeb6825b4d"
-dependencies = [
- "libc",
- "redox_users",
- "winapi",
-]
-
 [[package]]
 name = "encoding_rs"
 version = "0.8.31"
@@ -837,16 +815,6 @@ dependencies = [
  "bitflags",
 ]
 
-[[package]]
-name = "redox_users"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "528532f3d801c87aec9def2add9ca802fe569e44a544afe633765267840abe64"
-dependencies = [
- "getrandom",
- "redox_syscall",
-]
-
 [[package]]
 name = "regex"
 version = "1.7.0"

Cargo.toml

@@ -18,7 +18,6 @@ serde = { version = "1.0.152", features = ["derive"] }
 anyhow = "1.0.68"
 env_logger = "0.10.0"
 log = "0.4.17"
-directories-next = "2.0.0"
 tokio = { version = "1.23.0", features = ["time", "macros", "rt-multi-thread"] }
 serde_yaml = "0.9.16"
 cloudflare = "0.10.1"

README.md

@@ -16,9 +16,8 @@ cargo install cloudflare-ddns-service
 ## Usage
 ### Config
 
-The services adheres to the XDG spec for locating the config file. In most
-cases, that means the config file is located at
-`~/.config/cloudflare-ddns-service/config.yaml`.
+`cloudflare-ddns-service` expects to find a config file at
+`/etc/cloudflare-ddns-service/config.yml`.
 
 As you can see from the path, the configuration should be a yaml file. A sample
 could look like this:

src/main.rs

@@ -1,7 +1,6 @@
 mod network;
 
 use anyhow::{Context, Result};
-use directories_next::ProjectDirs;
 use network::{get_current_ipv4, get_current_ipv6, get_record, get_zone, update_record};
 use serde::{Deserialize, Serialize};
 use serde_yaml::{from_str, to_writer};
@@ -44,16 +43,15 @@ struct Cache {
 async fn main() -> Result<()> {
     env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("info")).init();
 
-    let dirs = ProjectDirs::from("re", "jcg", "cloudflare-ddns-service")
-        .context("Couldn't find project directories! Is $HOME set?")?;
-    let config_string = read_to_string(dirs.config_dir().join("config.yaml"))
+    let config_string = read_to_string("/etc/cloudflare-ddns-service/config.yaml")
         .context("couldn't read config file!")?;
     let config: Config = from_str(&config_string)?;
-    let cache_path = dirs.cache_dir().join("cache.yaml");
+    let cache_dir = PathBuf::from("/var/cache/cloudflare-ddns-service");
+    let cache_path = cache_dir.join("cache.yaml");
     let mut cache = match read_to_string(&cache_path) {
         Ok(cache) => from_str(&cache)?,
         Err(_) => {
-            create_dir_all(dirs.cache_dir())?;
+            create_dir_all(cache_dir)?;
             Cache::default()
         }
     };