Rewrite cleanup script in rust (#626)

* Rewrite cleanup script in rust

* Remove old python script

.gitattributes

@@ -1 +0,0 @@
-cleanup.py linguist-vendored

.gitignore

@@ -1,3 +1,5 @@
 .idea/
 Cargo.lock
 target/
+cleanup
+cleanup.exe

cleanup.py

@@ -1,50 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-Cleans up `README.md`.
-"""
-
-import codecs
-
-
-def fix_dashes(lines):
-    """
-    """
-
-    fixed_lines = []
-
-    # Distinguish between the prologue and the content.
-    within_content = False
-
-    # Iterate over the awesome lines.
-    for line in lines:
-
-        # The current line is within the content.
-        if within_content:
-
-            # Adjust the dash.
-            fixed_lines.append(line.replace(u' - ', u' — '))
-        #
-        # The current line is within the prologue.
-        else:
-            # The prologue has ended.
-            if line.startswith(u'## Applications'):
-                within_content = True
-
-            # Leave the current line unmodified.
-            fixed_lines.append(line)
-
-    return fixed_lines
-
-# end def fix_dashes
-
-
-# Read the awesome file.
-with codecs.open('README.md', encoding='utf8') as awesome_file:
-    awesome_lines = awesome_file.readlines()
-
-# Fix the dashes.
-awesome_lines = fix_dashes(awesome_lines)
-
-# Write the awesome file.
-with codecs.open('README.md', 'wb', encoding='utf8') as awesome_file:
-    awesome_file.writelines(awesome_lines)

cleanup.rs

@@ -0,0 +1,44 @@
+// Cleans up `README.md`
+// Usage: rustc cleanup.rs && ./cleanup
+
+use std::fs;
+use std::fs::File;
+use std::io::Read;
+
+fn fix_dashes(lines: Vec<String>) -> Vec<String> {
+    let mut fixed_lines: Vec<String> = Vec::with_capacity(lines.len());
+
+    let mut within_content = false;
+
+    for line in lines {
+        if within_content {
+            fixed_lines.push(line.replace(" - ", " — "));
+        } else {
+            if line.starts_with("## Applications") {
+                within_content = true;
+            }
+
+            fixed_lines.push(line.to_string());
+        }
+    }
+
+    return fixed_lines;
+}
+
+fn main() {
+    // Read the awesome file.
+    let mut file = File::open("README.md").expect("Failed to read the file");
+
+    let mut contents = String::new();
+    file.read_to_string(&mut contents)
+        .expect("Failed to read file contents");
+
+    // Split contents into lines.
+    let lines: Vec<String> = contents.lines().map(|l| l.to_string()).collect();
+
+    // Fix the dashes.
+    let fixed_contents = fix_dashes(lines);
+
+    // Write the awesome file.
+    fs::write("README.md", fixed_contents.join("\n").as_bytes()).expect("Failed to write to the file");
+}

dummy.rs

@@ -1,4 +0,0 @@
-// A dummy file to give the repository a Rust flavor.
-fn main() {
-    println!("Hello world!");
-}