Fixing Windows build: no termion support

Cargo.toml

@@ -14,7 +14,6 @@ description = "A command-line utility for easily compressing and decompressing f
 
 [dependencies]
 colored = "2.0.0"
-termion = "1.5.6"
 walkdir = "2.3.2"
 tar     = "0.4.33"
 xz2     = "0.1.6"
@@ -25,6 +24,8 @@ zip     = "0.5.11"
 # Dependency from workspace
 oof = { path = "./oof" }
 
+[target.'cfg(unix)'.dependencies]
+termion = "1.5.6"
 [profile.release]
 lto = true
 codegen-units = 1

src/utils.rs

@@ -126,7 +126,9 @@ pub struct Bytes {
     bytes: f64,
 }
 
-#[allow(dead_code)]
+/// Module with a list of bright colors.
+#[allow(dead_code, non_upper_case_globals)]
+#[cfg(target_family = "unix")]
 pub mod colors {
     use termion::color::*;
 
@@ -158,6 +160,22 @@ pub mod colors {
         LightYellow.fg_str()
     }
 }
+// Termion does not support Windows
+#[cfg(not(target_family = "unix"))]
+pub mod colors {
+    pub fn empty() -> &'static str {
+        ""
+    }
+    pub const reset: fn() -> &'static str = empty;
+    pub const black: fn() -> &'static str = empty;
+    pub const blue: fn() -> &'static str = empty;
+    pub const cyan: fn() -> &'static str = empty;
+    pub const green: fn() -> &'static str = empty;
+    pub const magenta: fn() -> &'static str = empty;
+    pub const red: fn() -> &'static str = empty;
+    pub const white: fn() -> &'static str = empty;
+    pub const yellow: fn() -> &'static str = empty;
+}
 
 impl Bytes {
     const UNIT_PREFIXES: [&'static str; 6] = ["", "k", "M", "G", "T", "P"];