Fix `git add -p` to work when any options enabled (#323)

* Add test for input and output for diff interactive filter

* Add color_only in config struct

* Refactor should_handle false when color_only and FileMeta, CommitMeta

* Refactor handle_hunk_header_line to show raw_text with color_format when color_only

* Fix indent

* Revert the logic changes for interactive filter

* Add color only workaround in set options

* Add more test patterns for diff interactive fillter

1 files changed, 7 insertions, 3 deletions

diff --git a/src/options/set.rs b/src/options/set.rs
index a6b4f151..a9ca6be7 100644
--- a/src/options/set.rs
+++ b/src/options/set.rs
@@ -19,8 +19,8 @@ use crate::options::option_value::{OptionValue, ProvenancedOptionValue};
 use crate::options::{self, theme};
 
 macro_rules! set_options {
-	([$( $field_ident:ident ),* ],
-     $opt:expr, $builtin_features:expr, $git_config:expr, $arg_matches:expr, $expected_option_name_map:expr, $check_names:expr) => {
+    ([$( $field_ident:ident ),* ],
+    $opt:expr, $builtin_features:expr, $git_config:expr, $arg_matches:expr, $expected_option_name_map:expr, $check_names:expr) => {
         let mut option_names = HashSet::new();
         $(
             let kebab_case_field_name = stringify!($field_ident).replace("_", "-");
@@ -59,7 +59,7 @@ macro_rules! set_options {
                              &option_names - &expected_option_names));
             }
         }
-	}
+    }
 }
 
 pub fn set_options(
@@ -192,6 +192,10 @@ pub fn set_options(
     // there (does not emit lines in 1-1 correspondence with raw git output). See #274.
     if opt.color_only {
         opt.side_by_side = false;
+        opt.file_style = "raw".to_string();
+        opt.commit_style = "raw".to_string();
+        opt.hunk_header_style = "raw".to_string();
+        opt.hunk_header_decoration_style = "none".to_string();
     }
 }