Make -pp override --paging and vice versa when passed as a later argument. (#2660)

tests/integration_tests.rs

@@ -873,6 +873,42 @@ fn disable_pager_if_disable_paging_flag_comes_after_paging() {
         .stdout(predicate::eq("hello world\n").normalize());
 }
 
+#[test]
+fn disable_pager_if_pp_flag_comes_after_paging() {
+    bat()
+        .env("PAGER", "echo pager-output")
+        .arg("--paging=always")
+        .arg("-pp")
+        .arg("test.txt")
+        .assert()
+        .success()
+        .stdout(predicate::eq("hello world\n").normalize());
+}
+
+#[test]
+fn enable_pager_if_disable_paging_flag_comes_before_paging() {
+    bat()
+        .env("PAGER", "echo pager-output")
+        .arg("-P")
+        .arg("--paging=always")
+        .arg("test.txt")
+        .assert()
+        .success()
+        .stdout(predicate::eq("pager-output\n").normalize());
+}
+
+#[test]
+fn enable_pager_if_pp_flag_comes_before_paging() {
+    bat()
+        .env("PAGER", "echo pager-output")
+        .arg("-pp")
+        .arg("--paging=always")
+        .arg("test.txt")
+        .assert()
+        .success()
+        .stdout(predicate::eq("pager-output\n").normalize());
+}
+
 #[test]
 fn pager_failed_to_parse() {
     bat()