Add skipping of commented or empty lines

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+### 🚀 Added
+- Add skipping of commented or empty lines [#36](https://github.com/mgrachev/dotenv-linter/pull/36) ([@mstruebing](https://github.com/mstruebing))
+
 ## [v1.0.0] - 2020-01-01
 ### 🚀 Added
 - Add check: Keys without values [#22](https://github.com/mgrachev/dotenv-linter/pull/22) ([@mstruebing](https://github.com/mstruebing))

src/lib.rs

@@ -35,6 +35,12 @@ pub fn run() -> Result<(), Error> {
 
         for (index, line) in reader.lines().enumerate() {
             let raw_string = line?;
+
+            // A comment or empty line should just be skipped
+            if raw_string.starts_with('#') || raw_string.trim().is_empty() {
+                continue;
+            }
+
             let number = index + 1;
 
             checks::run(&LineEntry { number, raw_string })