Remove lazy_static

Author: Perlmint

Cargo.toml

@@ -13,6 +13,7 @@ anyhow = "1.0"
 thiserror = "1.0"
 async-trait = "0.1"
 bytes = "*"
+once_cell = "1"
 
 reqwest = { version = "0.11", features = ["json", "rustls-tls"], default-features = false }
 tokio = { version = "1", features = ["full"] }
@@ -29,7 +30,6 @@ hmac = "0.12"
 sha2 = "0.10"
 
 futures = "0.3"
-lazy_static = "1.4.0"
 rand = "0.8"
 redis = "0.21"
 

src/modules/mhw.rs

@@ -1,59 +1,56 @@
 use crate::slack;
-use lazy_static::lazy_static;
 use rand::{thread_rng, Rng};
 
 struct MonsterHunterData<'a> {
-    keywords: Vec<&'a str>,
+    keywords: &'a [&'a str],
     text: &'a str,
     image_url: &'a str,
 }
 
-lazy_static! {
-    static ref MHW_DATA: Vec<MonsterHunterData<'static>> = vec![
-        MonsterHunterData {
-            keywords: vec!["ㄷㄷ", "ㄷㄷ가마루", "도도가마루"],
-            text: "도도가마루",
-            image_url:
-                "https://raw.githubusercontent.com/skyser2003/ditto_bot_rust/master/images/Dodogama.png"
-        },
-        MonsterHunterData {
-            keywords: vec!["ㅊㅊ", "추천"],
-            text: "치치야크",
-            image_url:
-                "https://raw.githubusercontent.com/skyser2003/ditto_bot_rust/master/images/Tzitzi_Ya_Ku.png"
-        },
-        MonsterHunterData {
-            keywords: vec!["ㅈㄹ", "지랄"],
-            text: "조라마그다라오스",
-            image_url:
-                "https://raw.githubusercontent.com/skyser2003/ditto_bot_rust/master/images/Zorah_Magdaros.png"
-        },
-        MonsterHunterData {
-            keywords: vec!["ㄹㅇ", "리얼"],
-            text: "로아루드로스",
-            image_url:
-                "https://raw.githubusercontent.com/skyser2003/ditto_bot_rust/master/images/Royal_Ludroth.png"
-        },
-        MonsterHunterData {
-            keywords: vec!["ㅇㄷ"],
-            text: "오도가론",
-            image_url:
-                "https://raw.githubusercontent.com/skyser2003/ditto_bot_rust/master/images/Odogaron.png"
-        },
-        MonsterHunterData {
-            keywords: vec!["이불", "졸려", "잘래", "잠와", "이블조"],
-            text: "이블조",
-            image_url:
-                "https://raw.githubusercontent.com/skyser2003/ditto_bot_rust/master/images/Evil_Jaw.png"
-        },
-    ];
+macro_rules! url_prefix {
+    () => {
+        "https://raw.githubusercontent.com/skyser2003/ditto_bot_rust/master/images/"
+    };
 }
 
+const MHW_DATA: &'static [MonsterHunterData<'static>] = &[
+    MonsterHunterData {
+        keywords: &["ㄷㄷ", "ㄷㄷ가마루", "도도가마루"],
+        text: "도도가마루",
+        image_url: concat!(url_prefix!(), "Dodogama.png"),
+    },
+    MonsterHunterData {
+        keywords: &["ㅊㅊ", "추천"],
+        text: "치치야크",
+        image_url: concat!(url_prefix!(), "Tzitzi_Ya_Ku.png"),
+    },
+    MonsterHunterData {
+        keywords: &["ㅈㄹ", "지랄"],
+        text: "조라마그다라오스",
+        image_url: concat!(url_prefix!(), "Zorah_Magdaros.png"),
+    },
+    MonsterHunterData {
+        keywords: &["ㄹㅇ", "리얼"],
+        text: "로아루드로스",
+        image_url: concat!(url_prefix!(), "Royal_Ludroth.png"),
+    },
+    MonsterHunterData {
+        keywords: &["ㅇㄷ"],
+        text: "오도가론",
+        image_url: concat!(url_prefix!(), "Odogaron.png"),
+    },
+    MonsterHunterData {
+        keywords: &["이불", "졸려", "잘래", "잠와", "이블조"],
+        text: "이블조",
+        image_url: concat!(url_prefix!(), "Evil_Jaw.png"),
+    },
+];
+
 pub async fn handle<B: crate::Bot>(bot: &B, msg: &crate::MessageEvent) -> anyhow::Result<()> {
     // TODO: Remove hard coded value
     if thread_rng().gen_range(0..100) < 35 {
-        for data in &*MHW_DATA {
-            for keyword in &data.keywords {
+        for data in MHW_DATA {
+            for keyword in data.keywords {
                 if msg.text.contains(keyword) {
                     bot.send_message(
                         &msg.channel,

src/modules/namuwiki.rs

@@ -1,11 +1,10 @@
 use crate::slack;
-use lazy_static::lazy_static;
+
+use once_cell::sync::OnceCell;
 use regex::Regex;
 use reqwest::Url;
 
-lazy_static! {
-    static ref TITLE_REGEX: Regex = Regex::new(r"<title>(.+) - 나무위키</title>").unwrap();
-}
+const TITLE_REGEX: OnceCell<Regex> = OnceCell::new();
 
 pub async fn handle<B: crate::Bot>(bot: &B, msg: &crate::MessageEvent) -> anyhow::Result<()> {
     if let Some(link) = &msg.link {
@@ -24,6 +23,7 @@ pub async fn handle<B: crate::Bot>(bot: &B, msg: &crate::MessageEvent) -> anyhow
             let body = res.text().await?;
 
             let title_opt = TITLE_REGEX
+                .get_or_try_init(|| Regex::new(r"<title>(.+) - 나무위키</title>"))?
                 .captures(&body)
                 .and_then(|captures| captures.get(1).map(|match_title| match_title.as_str()));