pass formatter config to formatter

src/formatters/custom.rs

@@ -9,6 +9,7 @@ use chrono::SecondsFormat;
 use crate::error::{Result, Error::*};
 use crate::models::Entry;
 use crate::commands::Facts;
+use crate::config::Config;
 
 /// tries to find a formatter with the given name in one of the possible paths
 fn formatter_path(formatters: &[PathBuf], name: &str) -> Option<PathBuf> {
@@ -31,6 +32,18 @@ fn is_valid_formatter_name(formatter: &str) -> bool {
     }).count() == 0
 }
 
+fn get_formatter_config(config: &Config, formatter: &str) -> String {
+    if let Some(formatters) = config.extra.get("formatters") {
+        if let Some(config_for_formatter) = formatters.get(formatter) {
+            config_for_formatter.to_string()
+        } else {
+            String::from("{}")
+        }
+    } else {
+        String::from("{}")
+    }
+}
+
 pub fn print_formatted<O, E>(formatter: &str, entries: Vec<Entry>, out: &mut O, err: &mut E, facts: &Facts) -> Result<()>
 where
     O: Write,
@@ -50,7 +63,7 @@ where
         config_at: facts.config.path.clone().unwrap_or_else(|| "in memory".into()),
     })?;
 
-    let config = "{}";
+    let config = get_formatter_config(&facts.config, formatter);
 
     let mut command = Command::new(&path);