code cleanup

mostly dead code removal
some formating

src/todo/file.rs

@@ -1,10 +1,7 @@
 use chrono::naive::NaiveDate;
-use regex::Regex;
 use std::cmp::min;
 use std::convert::TryFrom;
-use std::fs::DirEntry;
 use std::path::PathBuf;
-use std::str::FromStr;
 
 use crate::file::FileNameParseError;
 
@@ -14,56 +11,6 @@ pub struct File {
     pub date: NaiveDate,
 }
 
-pub enum FileError {
-    //IOError(&'static str),
-    ParseError(&'static str),
-}
-
-impl File {
-    fn capture_as_number<T: FromStr>(capture: &regex::Captures, name: &str) -> Result<T, String> {
-        Ok(capture
-            .name(name)
-            .unwrap()
-            .as_str()
-            .parse::<T>()
-            .ok()
-            .ok_or("Something went wrong".to_owned())?)
-    }
-
-    fn get_file_regex() -> Regex {
-        //TODO This would ideally be configurable
-        Regex::new(r"(?P<year>\d{4})-(?P<month>\d{2})-(?P<day>\d{2}).md")
-            .expect("could not create regex")
-    }
-}
-
-impl TryFrom<DirEntry> for File {
-    type Error = FileError;
-
-    fn try_from(direntry: DirEntry) -> Result<Self, Self::Error> {
-        let re = File::get_file_regex();
-        //        println!("{:?}", re);
-        let file_name = direntry.file_name();
-        let file_name_str = match file_name.to_str() {
-            Some(name) => name,
-            _ => "",
-        };
-        //        println!("{:?}", file_name_str);
-
-        if let Some(caps) = re.captures(file_name_str) {
-            let year: i32 = Self::capture_as_number(&caps, "year").unwrap();
-            let month: u32 = Self::capture_as_number(&caps, "month").unwrap();
-            let day: u32 = Self::capture_as_number(&caps, "day").unwrap();
-
-            return Ok(Self {
-                file: direntry.path(),
-                date: NaiveDate::from_ymd_opt(year, month, day).unwrap(),
-            });
-        };
-        Err(FileError::ParseError("Could not parse file name"))
-    }
-}
-
 fn try_get_date(file: &PathBuf) -> Result<NaiveDate, FileNameParseError> {
     let file_name = file
         .file_name()

src/todo/tasks.rs

@@ -92,6 +92,7 @@ impl ToString for Task {
 
 impl<'a> TryFrom<&'a AstNode<'a>> for Task {
     type Error = TaskError;
+
     fn try_from(node: &'a AstNode<'a>) -> Result<Self, Self::Error> {
         let data_ref = &node.data.borrow();
         if let NodeValue::TaskItem(ch) = data_ref.value {
@@ -158,6 +159,7 @@ impl ToString for TaskGroup {
 
 impl<'a> TryFrom<&'a AstNode<'a>> for TaskGroup {
     type Error = TaskError;
+
     fn try_from(node: &'a AstNode<'a>) -> Result<Self, Self::Error> {
         let node_ref = &node.data.borrow();
         if let NodeValue::Heading(heading) = node_ref.value {