2 files changed, 73 insertions, 0 deletions

diff --git a/src/config.rs b/src/config.rs
new file mode 100644
index 0000000..d690ed2
--- /dev/null
+++ b/src/config.rs
@@ -0,0 +1,48 @@
+use std::io::{BufRead, Error};
+use std::path::PathBuf;
+
+#[derive(Debug)]
+pub(crate) struct Entry {
+    filename: PathBuf
+}
+
+#[derive(Debug)]
+pub(crate) struct Config {
+    entries: Vec<Entry>
+}
+
+impl Entry {}
+
+impl Config {}
+
+pub(crate) fn create_config(reader: impl BufRead) -> Result<Config, String> {
+    let lines= reader.lines();
+    let(successful_lines, failed_lines) : (Vec<Result<String,Error>>, Vec<Result<String, Error>>) = lines.partition(Result::is_ok);
+
+    let successful_lines : Vec<_> = successful_lines.into_iter().map(Result::unwrap).collect();
+    let failed_lines : Vec<_> = failed_lines.into_iter().map(Result::unwrap_err).collect();
+
+    if !failed_lines.is_empty() {
+        return Result::Err(format!("Something went wrong when parsing file lines"));
+    }
+
+    let (entries, failures) : (Vec<Result<Entry, String>>, Vec<Result<Entry, String>>) = successful_lines.into_iter().map(|line| {
+        match line.split_whitespace().collect::<Vec<&str>>().as_slice() {
+            [s] => {
+                return Result::Ok(Entry {filename: PathBuf::from(s)});
+            }
+            _ => {
+                return Result::Err(format!("Line contains invalid Entry: {}", line));
+            }
+        }
+    }).partition(Result::is_ok);
+
+    let entries : Vec<_> = entries.into_iter().map(Result::unwrap).collect();
+    let failures : Vec<_> = failures.into_iter().map(Result::unwrap_err).collect();
+
+    if !failures.is_empty() {
+        return Result::Err(failures.first().unwrap().to_string())
+    }
+
+    return Result::Ok(Config {entries});
+}
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..d4de3cc
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,25 @@
+#![feature(fmt_internals)]
+
+use std::{env, io};
+use std::fs::File;
+use std::io::{BufReader, Write};
+
+mod config;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    if args.len() != 2 {
+        ::std::process::exit(-1);
+    }
+    let file = File::open(&args[1]);
+    if file.is_err() {
+        ::std::process::exit(-2);
+    }
+    let reader = BufReader::new(file.unwrap());
+    let config = config::create_config(reader);
+
+    match io::stdout().write(format!("{:?}\n", config).as_bytes()){
+        Ok(_) => {}
+        Err(_) => std::process::exit(-3)
+    }
+}