From c1b30918e985608bf90476654a842f077444d31e Mon Sep 17 00:00:00 2001
From: Teoh Han Hui <teohhanhui@gmail.com>
Date: Sat, 29 Jun 2024 17:37:22 +0800
Subject: [PATCH] Clean up build.rs

---
 crates/hyfetch/build.rs           | 134 +++++++++++++++---------------
 crates/hyfetch/src/bin/hyfetch.rs |  20 ++---
 2 files changed, 78 insertions(+), 76 deletions(-)

diff --git a/crates/hyfetch/build.rs b/crates/hyfetch/build.rs
index 71a9156d..f52c335b 100644
--- a/crates/hyfetch/build.rs
+++ b/crates/hyfetch/build.rs
@@ -49,116 +49,118 @@ where
         variants.insert(variant, distro);
     }
 
-    let mut buf = "
+    let mut buf = r###"
 #[derive(Clone, Eq, PartialEq, Hash, Debug)]
 pub enum Distro {
-"
+"###
     .to_owned();
 
-    for (variant, distro) in &variants {
+    for (variant, AsciiDistro { pattern, .. }) in &variants {
         buf.push_str(&format!(
-            "
-    // {})
+            r###"
+    // {pattern})
     {variant},
-",
-            distro.pattern
+"###,
         ));
     }
 
     buf.push_str(
-        "
+        r###"
 }
-",
-    );
 
-    buf.push_str(
-        "
 impl Distro {
-    pub fn ascii_art(&self) -> &str {
-        let art = match self {
-",
+    pub fn detect<S>(name: S) -> Option<Self>
+    where
+        S: AsRef<str>,
+    {
+        let name = name.as_ref().to_lowercase();
+"###,
     );
 
-    let quotes = "#".repeat(80);
-    for (variant, distro) in &variants {
-        buf.push_str(&format!(
-            "
-            Self::{variant} => r{quotes}\"
-{}
-\"{quotes},
-",
-            distro.art
-        ));
-    }
+    for (variant, AsciiDistro { pattern, .. }) in &variants {
+        let patterns = pattern.split('|').map(|s| s.trim());
+        let mut conds = vec![];
 
-    buf.push_str(
-        "
-        };
-        &art[1..(art.len() - 1)]
-    }
-}
-",
-    );
+        for m in patterns {
+            let stripped = m.trim_matches(['*', '\'', '"']).to_lowercase();
 
-    buf.push_str(
-        "
-impl Distro {
-    pub fn detect(name: &str) -> Option<Self> {
-",
-    );
-    for (variant, distro) in &variants {
-        let distro_pattern = &distro.pattern;
-        let matches: Vec<&str> = distro_pattern.split('|').map(|s| s.trim()).collect();
-        let mut condition = Vec::new();
-
-        for m in matches {
-            let stripped = m.trim_matches(|c| c == '*' || c == '\'' || c == '"').to_lowercase();
-
-            if stripped.contains('*') || stripped.contains('"') {
-                println!("TODO: Cannot properly parse: {}", m);
+            if stripped.contains(['*', '"']) {
+                if let Some((prefix, suffix)) = stripped.split_once(r#""*""#) {
+                    conds.push(format!(
+                        r###"name.starts_with("{prefix}") && name.ends_with("{suffix}")"###
+                    ));
+                    continue;
+                }
+                println!("cargo:warning=TODO: Cannot properly parse: {m}");
             }
 
             // Exact matches
             if m.trim_matches('*') == m {
-                condition.push(format!("name == r#\"{}\"#", stripped));
+                conds.push(format!(r###"name == "{stripped}""###));
                 continue;
             }
 
             // Both sides are *
             if m.starts_with('*') && m.ends_with('*') {
-                condition.push(format!("(name.starts_with(r#\"{}\"#) || name.ends_with(r#\"{}\"#))", stripped, stripped));
+                conds.push(format!(
+                    r###"name.starts_with("{stripped}") || name.ends_with("{stripped}")"###
+                ));
                 continue;
             }
 
             // Ends with *
             if m.ends_with('*') {
-                condition.push(format!("name.starts_with(r#\"{}\"#)", stripped));
+                conds.push(format!(r###"name.starts_with("{stripped}")"###));
                 continue;
             }
 
             // Starts with *
             if m.starts_with('*') {
-                condition.push(format!("name.ends_with(r#\"{}\"#)", stripped));
+                conds.push(format!(r###"name.ends_with("{stripped}")"###));
                 continue;
             }
         }
 
-        let condition = condition.join(" || ");
-    
-        buf.push_str(&format!("
+        let condition = conds.join(" || ");
+
+        buf.push_str(&format!(
+            r###"
         if {condition} {{
             return Some(Self::{variant});
-        }}"
+        }}
+"###
         ));
-    };
-    buf.push_str(&format!("
-        None
-"
-    ));
-
-    buf.push_str("
     }
-}");
+
+    buf.push_str(
+        r###"
+        None
+    }
+
+    pub fn ascii_art(&self) -> &str {
+        let art = match self {
+"###,
+    );
+
+    let quotes = "#".repeat(80);
+    for (variant, AsciiDistro { art, .. }) in &variants {
+        buf.push_str(&format!(
+            r###"
+            Self::{variant} => r{quotes}"
+{art}
+"{quotes},
+"###,
+        ));
+    }
+
+    buf.push_str(
+        r###"
+        };
+        &art[1..(art.len() - 1)]
+    }
+}
+"###,
+    );
 
     fs::write(out_path.join("distros.rs"), buf).expect("couldn't write distros.rs");
 }
diff --git a/crates/hyfetch/src/bin/hyfetch.rs b/crates/hyfetch/src/bin/hyfetch.rs
index 429a1103..951c4890 100644
--- a/crates/hyfetch/src/bin/hyfetch.rs
+++ b/crates/hyfetch/src/bin/hyfetch.rs
@@ -82,21 +82,21 @@ fn init_tracing_subsriber(debug: bool) -> Result<()> {
         let targets = match env::var("RUST_LOG") {
             Ok(var) => Targets::from_str(&var)
                 .map_err(|e| {
-                    eprintln!("Ignoring `RUST_LOG={:?}`: {}", var, e);
+                    eprintln!("Ignoring `RUST_LOG={var:?}`: {e}");
                 })
                 .unwrap_or_default(),
             Err(env::VarError::NotPresent) => {
-                let targets = Targets::new().with_default(Subscriber::DEFAULT_MAX_LEVEL);
-                if debug {
-                    targets.with_target(env!("CARGO_CRATE_NAME"), Level::DEBUG)
-                } else {
-                    targets
-                }
-            },
-            Err(e) => {
-                eprintln!("Ignoring `RUST_LOG`: {}", e);
                 Targets::new().with_default(Subscriber::DEFAULT_MAX_LEVEL)
             },
+            Err(e) => {
+                eprintln!("Ignoring `RUST_LOG`: {e}");
+                Targets::new().with_default(Subscriber::DEFAULT_MAX_LEVEL)
+            },
+        };
+        let targets = if debug {
+            targets.with_target(env!("CARGO_CRATE_NAME"), Level::DEBUG)
+        } else {
+            targets
         };
         subscriber.with(targets)
     };