refactor: Eliminate deprecation warning when --all-features implicitly enables the deprecated feature

Cargo.toml

@@ -63,6 +63,7 @@ tempdir = "0.3.7"
 aes-crypto = ["aes", "constant_time_eq", "hmac", "pbkdf2", "sha1", "rand", "zeroize"]
 chrono = ["chrono/default"]
 _deflate-any = []
+_all-features = [] # Detect when --all-features is used
 deflate = ["flate2/rust_backend", "_deflate-any"]
 
 # DEPRECATED: previously enabled `flate2/miniz_oxide` which is equivalent to `flate2/rust_backend`

examples/write_dir.rs

@@ -25,8 +25,8 @@ struct Args {
 enum CompressionMethod {
     Stored,
     Deflated,
-    DeflatedMiniz,
     DeflatedZlib,
+    DeflatedZlibNg,
     Bzip2,
     Zstd,
 }
@@ -50,15 +50,6 @@ fn real_main() -> i32 {
             #[cfg(feature = "deflate")]
             zip::CompressionMethod::Deflated
         }
-        CompressionMethod::DeflatedMiniz => {
-            #[cfg(not(feature = "deflate-miniz"))]
-            {
-                println!("The `deflate-miniz` feature is not enabled");
-                return 1;
-            }
-            #[cfg(feature = "deflate-miniz")]
-            zip::CompressionMethod::Deflated
-        }
         CompressionMethod::DeflatedZlib => {
             #[cfg(not(feature = "deflate-zlib"))]
             {
@@ -68,6 +59,15 @@ fn real_main() -> i32 {
             #[cfg(feature = "deflate-zlib")]
             zip::CompressionMethod::Deflated
         }
+        CompressionMethod::DeflatedZlibNg => {
+            #[cfg(not(feature = "deflate-zlib-ng"))]
+            {
+                println!("The `deflate-zlib-ng` feature is not enabled");
+                return 1;
+            }
+            #[cfg(feature = "deflate-zlib-ng")]
+            zip::CompressionMethod::Deflated
+        }
         CompressionMethod::Bzip2 => {
             #[cfg(not(feature = "bzip2"))]
             {

src/build.rs

@@ -1,7 +1,8 @@
 use std::env::var;
 
 fn main() {
-    if var("CARGO_FEATURE_DEFLATE_MINIZ").is_ok() {
+    if var("CARGO_FEATURE_DEFLATE_MINIZ").is_ok()
+            && var("CARGO_FEATURE__ALL_FEATURES").is_err() {
         println!("cargo:warning=Feature `deflate-miniz` is deprecated; replace it with `deflate`");
     }
 }