Allow build directives to bypass schedule type if they match directly.

Summary:
https://fb.workplace.com/groups/td.users/posts/3312160132413316/?comment_id=3312215952407734&reply_comment_id=3312238032405526

Mobile users want to make sure their diff didn't break a build that is normally NOT landblocking

Reviewed By: aniketmathur

Differential Revision: D56031572

fbshipit-source-id: 19c63fcbe68c46d4e05a363c0874901bd99a4b37

td_util/src/directives.rs

@@ -33,13 +33,18 @@ pub fn get_app_specific_build_directives(directives: &Option<Vec<String>>) -> Op
 pub fn app_specific_build_directives_matches_name(
     app_specific_build_directives: &Option<Vec<String>>,
     name: &String,
+    exactly: bool,
 ) -> bool {
     app_specific_build_directives
         .as_ref()
         .map_or(false, |app_specific_build_directives| {
-            app_specific_build_directives
-                .iter()
-                .any(|directive| name.starts_with(directive))
+            app_specific_build_directives.iter().any(|directive| {
+                if exactly {
+                    name == directive
+                } else {
+                    name.starts_with(directive)
+                }
+            })
         })
 }
 
@@ -78,19 +83,22 @@ mod tests {
         ]);
         assert!(app_specific_build_directives_matches_name(
             &app_specific_build_directives,
-            &"directive1".to_string()
+            &"directive1".to_string(),
+            true
         ));
         assert!(!app_specific_build_directives_matches_name(
             &app_specific_build_directives,
-            &"directive4".to_string()
+            &"directive4".to_string(),
+            true
         ));
     }
     #[test]
     fn test_app_specific_build_directives_contains_name_none() {
         let app_specific_build_directives = None;
         assert!(!app_specific_build_directives_matches_name(
             &app_specific_build_directives,
-            &"directive1".to_string()
+            &"directive1".to_string(),
+            true
         ));
     }
 
@@ -103,7 +111,8 @@ mod tests {
         ]);
         assert!(app_specific_build_directives_matches_name(
             &app_specific_build_directives,
-            &"directive1234".to_string()
+            &"directive1234".to_string(),
+            false
         ));
     }
 }