Add CI workflow to check line endings of all source files (#2082)

In addition, all found errors (formatting & line ending) have been fixed in this PR.

.github/workflows/check-formatting.yml

@@ -8,18 +8,19 @@ on:
   pull_request:
 
 jobs:
-  build:
-    runs-on: ubuntu-latest
-    container:
-      image: ubuntu:19.10
+  check:
+    runs-on: ubuntu-20.04
 
     steps:
     - uses: actions/checkout@v2.3.3
     - name: apt-get update
-      run: apt-get update
+      run: sudo apt-get update
 
     - name: Install clang-format
-      run: apt-get -y install clang-format
+      run: sudo apt-get -y install clang-format dos2unix
 
     - name: Check formatting
       run: ./tools/check-format.sh
+
+    - name: Check line-endings
+      run: ./tools/check-line-endings.sh

README.md

@@ -41,7 +41,7 @@ git submodule update --init --recursive
 The code is formatted using clang format in Qt Creator. [.clang-format](src/.clang-format) contains the style file for clang format.
 
 ### Get it automated with QT Creator + Beautifier + Clang Format
-1. Download LLVM: https://releases.llvm.org/9.0.0/LLVM-9.0.0-win64.exe
+1. Download LLVM: https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/LLVM-11.0.0-win64.exe
 2. During the installation, make sure to add it to your path
 3. In QT Creator, select `Help` > `About Plugins` > `C++` > `Beautifier` to enable the plugin
 4. Restart QT Creator

src/providers/twitch/IrcMessageHandler.cpp

@@ -1,4 +1,4 @@
-#include "IrcMessageHandler.hpp"
+#include "IrcMessageHandler.hpp"
 
 #include "Application.hpp"
 #include "controllers/accounts/AccountController.hpp"

src/providers/twitch/TwitchMessageBuilder.hpp

@@ -1,4 +1,4 @@
-#pragma once
+#pragma once
 
 #include "common/Aliases.hpp"
 #include "common/Outcome.hpp"

src/util/Overloaded.hpp

@@ -8,6 +8,6 @@ struct Overloaded : Ts... {
 };
 
 template <class... Ts>
-Overloaded(Ts...)->Overloaded<Ts...>;
+Overloaded(Ts...) -> Overloaded<Ts...>;
 
 }  // namespace chatterino

tools/check-format.sh

@@ -4,12 +4,14 @@ set -eu
 
 fail="0"
 
+clang-format --version
+
 while read -r file; do
     if ! diff -u <(cat "$file") <(clang-format "$file"); then
         echo "$file differs!!!!!!!"
         fail="1"
     fi
-done < <(find src/ \( -iname "*.hpp" -o -iname "*.cpp" \))
+done < <(find src/ -type f \( -iname "*.hpp" -o -iname "*.cpp" \))
 
 if [ "$fail" = "1" ]; then
     echo "At least one file is poorly formatted - check the output above"

tools/check-line-endings.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+set -eu
+
+fail="0"
+
+dos2unix --version
+
+while read -r file; do
+    num_dos_line_endings=$(dos2unix -id "$file" | awk '/[0-9]+/{print $(NF-1)}')
+    if [ "$num_dos_line_endings" -gt "0" ]; then
+        >&2 echo "File '$file' contains $num_dos_line_endings DOS line-endings, it should only be using unix line-endings!"
+        fail="1"
+    fi
+done < <(find src/ -type f \( -iname "*.hpp" -o -iname "*.cpp" \))
+
+if [ "$fail" = "1" ]; then
+    >&2 echo "At least one file is not using unix line-endings - check the output above"
+    exit 1
+fi
+
+>&2 echo "Every file seems to be using unix line-endings. Good job!"