feat: support fzf extra options

man/man1/zoxide.1

@@ -92,6 +92,10 @@ to use \fBzoxide-remove\fR(1) to remove any existing entries from the database.
 Custom options to pass to \fBfzf\fR(1) during interactive selection. See the
 manpage for the full list of options.
 .TP
+.B_ZO_FZF_EXTRA_OPTS
+Custom options to pass to \fBfzf\fR(1) during interactive selection, appended to the default ones. 
+See the manpage for the full list of options.
+.TP
 .B _ZO_MAXAGE
 Configures the aging algorithm, which limits the maximum number of entries in
 the database. By default, this is set to 10000.

src/cmd/cmd.rs

@@ -26,6 +26,7 @@ https://github.com/ajeetdsouza/zoxide
 {tab}<bold>_ZO_ECHO</bold>            {tab}Print the matched directory before navigating to it when set to 1
 {tab}<bold>_ZO_EXCLUDE_DIRS</bold>    {tab}List of directory globs to be excluded
 {tab}<bold>_ZO_FZF_OPTS</bold>        {tab}Custom flags to pass to fzf
+{tab}<bold>_ZO_FZF_EXTRA_OPTS</bold>  {tab}Custom flags added the the default fzf ones
 {tab}<bold>_ZO_MAXAGE</bold>          {tab}Maximum total age after which entries start getting deleted
 {tab}<bold>_ZO_RESOLVE_SYMLINKS</bold>{tab}Resolve symlinks when storing paths").into_resettable()
     }

src/cmd/query.rs

@@ -91,29 +91,35 @@ impl Query {
 
     fn get_fzf() -> Result<FzfChild> {
         let mut fzf = Fzf::new()?;
-        if let Some(fzf_opts) = config::fzf_opts() {
-            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()
+
+        match config::fzf_opts() {
+            Some(mut fzf_opts) => {
+                if let Some(fzf_extra_opts) = config::fzf_extra_opts() {
+                    fzf_opts.push(" ");
+                    fzf_opts.push(fzf_extra_opts);
+                }
+
+                fzf.env("FZF_DEFAULT_OPTS", fzf_opts)
+            }
+            None => {
+                let default_args = config::fzf_default_args();
+
+                let args = match config::fzf_extra_opts() {
+                    Some(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()
+                    }
+                    None => default_args,
+                };
+
+                fzf.args(args).enable_preview()
+            }
         }
         .spawn()
     }

src/config.rs

@@ -47,6 +47,32 @@ pub fn fzf_opts() -> Option<OsString> {
     env::var_os("_ZO_FZF_OPTS")
 }
 
+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")?;