Omit shebang lines on Windows (#1417)

src/shebang.rs

@@ -47,7 +47,7 @@ impl<'line> Shebang<'line> {
   }
 
   pub(crate) fn include_shebang_line(&self) -> bool {
-    !matches!(self.interpreter_filename(), "cmd" | "cmd.exe")
+    !cfg!(windows) && !matches!(self.interpreter_filename(), "cmd" | "cmd.exe")
   }
 }
 
@@ -201,7 +201,14 @@ mod tests {
   }
 
   #[test]
-  fn include_shebang_line_other() {
+  #[cfg(not(windows))]
+  fn include_shebang_line_other_not_windows() {
     assert!(Shebang::new("#!foo -c").unwrap().include_shebang_line());
   }
+
+  #[test]
+  #[cfg(windows)]
+  fn include_shebang_line_other_windows() {
+    assert!(!Shebang::new("#!foo -c").unwrap().include_shebang_line());
+  }
 }

tests/misc.rs

@@ -1081,6 +1081,7 @@ test! {
   stderr:   "#!/bin/sh\necho hello\n",
 }
 
+#[cfg(not(windows))]
 test! {
   name:     shebang_line_numbers,
   justfile: r#"
@@ -1100,6 +1101,36 @@ test! {
     #!/usr/bin/env cat
 
 
+    a
+
+    b
+
+
+    c
+  ",
+}
+
+#[cfg(windows)]
+test! {
+  name:     shebang_line_numbers,
+  justfile: r#"
+    quiet:
+      #!/usr/bin/env cat
+
+      a
+
+      b
+
+
+      c
+
+
+  "#,
+  stdout:   "
+
+
+
+
     a
 
     b

tests/tempdir.rs

@@ -24,13 +24,21 @@ fn test_tempdir_is_set() {
       }
     })
     .current_dir("foo")
-    .stdout(
+    .stdout(if cfg!(windows) {
+      "
+
+
+
+
+      cat just*/foo
+      "
+    } else {
       "
       #!/usr/bin/env bash
 
 
       cat just*/foo
-      ",
-    )
+      "
+    })
     .run();
 }