Properly accounts for behavior on windows systems

Signed-off-by: Jason Heath <jh@jasonheath.com>

components/hab/src/main.rs

@@ -57,6 +57,8 @@ use habitat_common::{self as common,
                           UIWriter,
                           UI},
                      FeatureFlag};
+#[cfg(not(target_os = "windows"))]
+use habitat_core::util::posix_perm;
 use habitat_core::{crypto::{init,
                             keys::{Key,
                                    KeyCache}},
@@ -70,7 +72,6 @@ use habitat_core::{crypto::{init,
                              PackageTarget},
                    service::ServiceGroup,
                    url::default_bldr_url,
-                   util::posix_perm,
                    ChannelIdent};
 use habitat_sup_client::{SrvClient,
                          SrvClientError};
@@ -129,20 +130,25 @@ async fn main() {
     env_logger::init();
     let mut ui = UI::default_with_env();
     let flags = FeatureFlag::from_env(&mut ui);
-
-    #[cfg(not(target_os = "windows"))]
-    if let Err(e) = posix_perm::set_umask_0022() {
-        ui.fatal(e).unwrap();
-        std::process::exit(1);
-    }
-
+    manage_permissions(&mut ui);
     if let Err(e) = start(&mut ui, flags).await {
         let exit_code = e.exit_code();
         ui.fatal(e).unwrap();
         std::process::exit(exit_code)
     }
 }
 
+#[cfg(not(target_os = "windows"))]
+fn manage_permissions(ui: &mut UI) {
+    if let Err(e) = posix_perm::set_umask_0022() {
+        ui.fatal(e).unwrap();
+        std::process::exit(1);
+    }
+}
+
+#[cfg(target_os = "windows")]
+fn manage_permissions(_ui: &mut UI) {}
+
 #[allow(clippy::cognitive_complexity)]
 async fn start(ui: &mut UI, feature_flags: FeatureFlag) -> Result<()> {
     // We parse arguments with configopt in a separate thread to eliminate