replace dotenv_codegen

Cargo.lock

@@ -57,7 +57,7 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 name = "cloudflare-dynamic-dns"
 version = "0.1.0"
 dependencies = [
- "dotenv_codegen",
+ "dotenv",
  "env_logger",
  "log",
  "regex",
@@ -87,29 +87,6 @@ version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77c90badedccf4105eca100756a0b1289e191f6fcbdadd3cee1d2f614f97da8f"
 
-[[package]]
-name = "dotenv_codegen"
-version = "0.15.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56966279c10e4f8ee8c22123a15ed74e7c8150b658b26c619c53f4a56eb4a8aa"
-dependencies = [
- "dotenv_codegen_implementation",
- "proc-macro-hack",
-]
-
-[[package]]
-name = "dotenv_codegen_implementation"
-version = "0.15.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53e737a3522cd45f6adc19b644ce43ef53e1e9045f2d2de425c1f468abd4cf33"
-dependencies = [
- "dotenv",
- "proc-macro-hack",
- "proc-macro2",
- "quote",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "encoding_rs"
 version = "0.8.32"
@@ -534,7 +511,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn",
 ]
 
 [[package]]
@@ -579,12 +556,6 @@ version = "0.3.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26072860ba924cbfa98ea39c8c19b4dd6a4a25423dbdf219c1eca91aa0cf6964"
 
-[[package]]
-name = "proc-macro-hack"
-version = "0.5.20+deprecated"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc375e1527247fe1a97d8b7156678dfe7c1af2fc075c9a4db3690ecd2a148068"
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.60"
@@ -766,17 +737,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "syn"
-version = "1.0.109"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
-dependencies = [
- "proc-macro2",
- "quote",
- "unicode-ident",
-]
-
 [[package]]
 name = "syn"
 version = "2.0.18"
@@ -972,7 +932,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn",
  "wasm-bindgen-shared",
 ]
 
@@ -1006,7 +966,7 @@ checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.18",
+ "syn",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]

Cargo.toml

@@ -7,7 +7,7 @@ edition = "2021"
 
 [dependencies]
 reqwest = { version = "0.11.16", features = ["blocking"] }
-dotenv_codegen = "0.15.0"
+dotenv = "0.15.0"
 serde_json = "1.0.96"
 regex = "1.7.3"
 log = "0.4.17"

Dockerfile

@@ -0,0 +1,8 @@
+FROM rust:1.70
+
+WORKDIR ./src/
+COPY . .
+
+RUN cargo install --path .
+
+CMD ["cloudflare-dynamic-dns"]

src/main.rs

@@ -1,11 +1,9 @@
 mod errors;
 mod public_ip;
 
-#[macro_use]
-extern crate dotenv_codegen;
-
-use std::{thread::sleep, time::Duration};
+use std::{env, thread::sleep, time::Duration};
 
+use dotenv::dotenv;
 use log::{error, info};
 use public_ip::get_public_ip_address;
 use reqwest::header::{AUTHORIZATION, CONTENT_TYPE};
@@ -19,12 +17,11 @@ fn main() {
         .filter_level(log::LevelFilter::Info)
         .init();
 
-    let token = dotenv!("AUTH_BEARER");
-    let zone_id = dotenv!("ZONE_ID");
-    let domain = dotenv!("DOMAIN");
+    dotenv().ok();
+    let (token, zone_id, domain) = get_and_ensure_env_vars();
 
     loop {
-        let result = update(token, zone_id, domain);
+        let result = update(&token, &zone_id, &domain);
 
         match result {
             Ok(_) => (),
@@ -122,3 +119,22 @@ fn update_ip_address(
 
     Ok(())
 }
+
+fn get_and_ensure_env_vars() -> (String, String, String) {
+    let mut token: Option<String> = Option::None;
+    let mut zone_id: Option<String> = Option::None;
+    let mut domain: Option<String> = Option::None;
+
+    env::vars().for_each(|(key, value)| match key.as_str() {
+        "AUTH_BEARER" => token = Some(String::from(value)),
+        "ZONE_ID" => zone_id = Some(String::from(value)),
+        "DOMAIN" => domain = Some(String::from(value)),
+        _ => {}
+    });
+
+    let token = token.expect("AUTH_BEARER not set");
+    let zone_id = zone_id.expect("ZONE_ID not set");
+    let domain = domain.expect("DOMAIN not set");
+
+    (token, zone_id, domain)
+}