presets: remove rustc 1.74 compatibility

MSRV is 1.76

Cargo.lock

@@ -1704,9 +1704,7 @@ dependencies = [
  "nom_locate",
  "num-traits",
  "once_cell",
- "os_str_bytes",
  "regex",
- "rustversion",
  "thiserror",
 ]
 
@@ -2338,9 +2336,6 @@ name = "os_str_bytes"
 version = "6.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2355d85b9a3786f481747ced0e0ff2ba35213a1f9bd406ed906554d7af805a1"
-dependencies = [
- "memchr",
-]
 
 [[package]]
 name = "owned_ttf_parser"
@@ -2918,12 +2913,6 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
-[[package]]
-name = "rustversion"
-version = "1.0.17"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "955d28af4278de8121b7ebeb796b6a45735dc01436d898801014aced2773a3d6"
-
 [[package]]
 name = "ryu"
 version = "1.0.18"

librashader-presets/Cargo.toml

@@ -21,9 +21,6 @@ once_cell = "1"
 # we don't need unicode
 regex = {  version = "1", default-features = false, features = ["perf"] }
 
-rustversion = "1.0"
-os_str_bytes = {  version = "6", features = ["conversions"] }
-
 [features]
 parse_legacy_glsl = []
 

librashader-presets/src/context.rs

@@ -365,7 +365,6 @@ impl WildcardContext {
     }
 }
 
-#[rustversion::since(1.74)]
 pub(crate) fn apply_context(path: &mut PathBuf, context: &FastHashMap<String, String>) {
     use std::ffi::{OsStr, OsString};
 
@@ -412,53 +411,3 @@ pub(crate) fn apply_context(path: &mut PathBuf, context: &FastHashMap<String, St
         *path = new_path;
     }
 }
-
-#[rustversion::before(1.74)]
-pub(crate) fn apply_context(path: &mut PathBuf, context: &FastHashMap<String, String>) {
-    use os_str_bytes::RawOsStr;
-    static WILDCARD_REGEX: Lazy<Regex> = Lazy::new(|| Regex::new("\\$([A-Z-_]+)\\$").unwrap());
-    if context.is_empty() {
-        return;
-    }
-    let path_str = RawOsStr::new(path.as_os_str());
-    let path_bytes = path_str.to_raw_bytes();
-    // Don't want to do any extra work if there's no match.
-    if !WILDCARD_REGEX.is_match(&path_bytes) {
-        return;
-    }
-
-    let mut new_path = PathBuf::with_capacity(path.capacity());
-    for component in path.components() {
-        match component {
-            Component::Normal(path) => {
-                let haystack = RawOsStr::new(path);
-                let haystack = haystack.to_raw_bytes();
-
-                let replaced =
-                    WILDCARD_REGEX.replace_all(&haystack, |caps: &regex::bytes::Captures| {
-                        let Some(name) = caps.get(1) else {
-                            return caps[0].to_vec();
-                        };
-
-                        let Ok(key) = std::str::from_utf8(name.as_bytes()) else {
-                            return caps[0].to_vec();
-                        };
-                        if let Some(replacement) = context.get(key) {
-                            return RawOsStr::from_str(replacement).to_raw_bytes().to_vec();
-                        }
-                        return caps[0].to_vec();
-                    });
-
-                // SAFETY: The original source is valid encoded bytes, and our replacement is
-                // valid encoded bytes. This upholds the safety requirements of `from_encoded_bytes_unchecked`.
-                new_path.push(RawOsStr::assert_cow_from_raw_bytes(&replaced.as_ref()).to_os_str())
-            }
-            _ => new_path.push(component),
-        }
-    }
-
-    // If no wildcards are found within the path, or the path after replacing the wildcards does not exist on disk, the path returned will be unaffected.
-    if let Ok(true) = new_path.try_exists() {
-        *path = new_path;
-    }
-}