gets _ZO_FZF_EXTRA_OPTS and add it to default fzf flags

src/cmd/query.rs

@@ -99,26 +99,21 @@ impl Query {
 
             fzf.env("FZF_DEFAULT_OPTS", fzf_opts)
         } else {
-            fzf.args([
-                // Search mode
-                "--exact",
-                // Search result
-                "--no-sort",
-                // Interface
-                "--bind=ctrl-z:ignore,btab:up,tab:down",
-                "--cycle",
-                "--keep-right",
-                // Layout
-                "--border=sharp", // rounded edges don't display correctly on some terminals
-                "--height=45%",
-                "--info=inline",
-                "--layout=reverse",
-                // Display
-                "--tabstop=1",
-                // Scripting
-                "--exit-0",
-            ])
-            .enable_preview()
+            let default_args = config::fzf_default_args();
+            let args = if let Some(fzf_extra_opts) = config::fzf_extra_opts() {
+                let extra_fzf_args_list: Vec<String> = fzf_extra_opts
+                    .to_str()
+                    .unwrap_or_default()
+                    .split_whitespace()
+                    .map(|arg| String::from(arg))
+                    .collect();
+
+                vec![default_args, extra_fzf_args_list].concat()
+            } else {
+                default_args
+            };
+
+            fzf.args(args).enable_preview()
         }
         .spawn()
     }

src/config.rs

@@ -51,6 +51,28 @@ pub fn fzf_extra_opts() -> Option<OsString> {
     env::var_os("_ZO_FZF_EXTRA_OPTS")
 }
 
+pub fn fzf_default_args() -> Vec<String> {
+    vec![
+        // Search mode
+        String::from("--exact"),
+        // Search result
+        String::from("--no-sort"),
+        // Interface
+        String::from("--bind=ctrl-z:ignore,btab:up,tab:down"),
+        String::from("--cycle"),
+        String::from("--keep-right"),
+        // Layout
+        String::from("--border=sharp"), // rounded edges don't display correctly on some terminals
+        String::from("--height=45%"),
+        String::from("--info=inline"),
+        String::from("--layout=reverse"),
+        // Display
+        String::from("--tabstop=1"),
+        // Scripting
+        String::from("--exit-0"),
+    ]
+}
+
 pub fn maxage() -> Result<Rank> {
     env::var_os("_ZO_MAXAGE").map_or(Ok(10_000.0), |maxage| {
         let maxage = maxage.to_str().context("invalid unicode in _ZO_MAXAGE")?;