build: conditionalize ANSI support to Windows only

The `enable-ansi-support` crate is only required on Windows to enable ANSI escape codes in the terminal. On other operating systems, this functionality is native. This change restricts the dependency to Windows targets and wraps its usage in a `#[cfg(target_os = "windows")]` block, reducing the dependency footprint for non-Windows builds.

Author: plusvic

Cargo.toml

@@ -53,7 +53,6 @@ der-parser = "10.0.0"
 digest = "0.10.7"
 dsa = "0.6.3"
 ecdsa = "0.16.9"
-enable-ansi-support = "0.3.1"
 env_logger = "0.11.10"
 figment = "0.10.19"
 globwalk = "0.9.1"

cli/Cargo.toml

@@ -57,7 +57,6 @@ figment = { workspace = true, features = ["toml"] }
 globwalk = { workspace = true }
 home = { workspace = true }
 itertools = { workspace = true }
-enable-ansi-support = { workspace = true }
 env_logger = { workspace = true, optional = true, features = ["auto-color"] }
 log = { workspace = true, optional = true }
 protobuf = { workspace = true }
@@ -85,4 +84,7 @@ wild = "2.2.1"
 [dev-dependencies]
 assert_cmd = "2.2.2"
 assert_fs = "1.1.4"
-predicates = { workspace = true }
+predicates = { workspace = true }
+
+[target.'cfg(windows)'.dependencies]
+enable-ansi-support = "0.3.1"

cli/src/main.rs

@@ -29,8 +29,8 @@ const EXIT_ERROR: i32 = 1;
 const CONFIG_FILE: &str = ".yara-x.toml";
 
 fn main() -> anyhow::Result<()> {
-    // Enable support for ANSI escape codes in Windows. In other platforms
-    // this is a no-op.
+    // Enable support for ANSI escape codes in Windows.
+    #[cfg(target_os = "windows")]
     if let Err(err) = enable_ansi_support::enable_ansi_support() {
         println!("could not enable ANSI support: {err}")
     }