Add --cache-dir option

src/assets.rs

@@ -216,6 +216,10 @@ pub fn config_dir() -> Cow<'static, str> {
     PROJECT_DIRS.config_dir().to_string_lossy()
 }
 
+pub fn cache_dir() -> Cow<'static, str> {
+    PROJECT_DIRS.cache_dir().to_string_lossy()
+}
+
 pub fn clear_assets() {
     print!("Clearing theme set cache ... ");
     fs::remove_file(theme_set_path()).ok();

src/clap_app.rs

@@ -374,9 +374,14 @@ pub fn build_app(interactive_output: bool) -> ClapApp<'static, 'static> {
                         .short("d")
                         .help("Show bat's configuration directory."),
                 )
+                .arg(
+                    Arg::with_name("cache-dir")
+                        .long("cache-dir")
+                        .help("Show bat's cache directory."),
+                )
                 .group(
                     ArgGroup::with_name("cache-actions")
-                        .args(&["init", "clear", "config-dir"])
+                        .args(&["init", "clear", "config-dir", "cache-dir"])
                         .required(arg_group_required),
                 )
                 .arg(

src/main.rs

@@ -49,7 +49,7 @@ use ansi_term::Colour::Green;
 use ansi_term::Style;
 
 use app::{App, Config};
-use assets::{clear_assets, config_dir, HighlightingAssets};
+use assets::{cache_dir, clear_assets, config_dir, HighlightingAssets};
 use config::config_file;
 use controller::Controller;
 use inputfile::InputFile;
@@ -98,6 +98,8 @@ fn run_cache_subcommand(matches: &clap::ArgMatches) -> Result<()> {
         clear_assets();
     } else if matches.is_present("config-dir") {
         writeln!(io::stdout(), "{}", config_dir())?;
+    } else if matches.is_present("cache-dir") {
+        writeln!(io::stdout(), "{}", cache_dir())?;
     }
 
     Ok(())