Add _ZO_FZF_OPTS to specify fzf options

src/config.rs

@@ -4,6 +4,7 @@ use anyhow::{bail, Context, Result};
 
 use std::env;
 use std::fs;
+use std::ffi::OsString;
 use std::path::PathBuf;
 
 pub fn zo_data_dir() -> Result<PathBuf> {
@@ -33,6 +34,10 @@ pub fn zo_exclude_dirs() -> Vec<PathBuf> {
     }
 }
 
+pub fn zo_fzf_opts() -> Option<OsString> {
+    env::var_os("_ZO_FZF_OPTS")
+}
+
 pub fn zo_maxage() -> Result<Rank> {
     match env::var_os("_ZO_MAXAGE") {
         Some(maxage_osstr) => {

src/fzf.rs

@@ -1,3 +1,4 @@
+use crate::config::zo_fzf_opts;
 use crate::db::{Dir, Epoch};
 use crate::error::SilentExit;
 
@@ -14,12 +15,17 @@ pub struct Fzf {
 
 impl Fzf {
     pub fn new() -> Result<Self> {
-        let child = Command::new("fzf")
+        let mut command = Command::new("fzf");
+        command
             .args(&["-n2..", "--no-sort"])
             .stdin(Stdio::piped())
-            .stdout(Stdio::piped())
+            .stdout(Stdio::piped());
-            .spawn()
+
-            .context("could not launch fzf")?;
+        if let Some(fzf_opts) = zo_fzf_opts() {
+            command.env("FZF_DEFAULT_OPTS", fzf_opts);
+        }
+
+        let child = command.spawn().context("could not launch fzf")?;
 
         Ok(Fzf {
             child,

src/subcommand/query.rs

@@ -94,7 +94,7 @@ fn query_interactive(keywords: &[String]) -> Result<Option<String>> {
             continue;
         }
 
-        fzf.write_dir(&dir, now);
+        fzf.write_dir(dir, now);
     }
 
     fzf.wait_selection()