diff --git a/.editorconfig b/.editorconfig
index 7968c6333..116738756 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -3,7 +3,7 @@ root = true
 
 [*]
 indent_style = space
-end_of_line = crlf
+# end_of_line = native # set via .gitattributes
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 000000000..e1b1161d8
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,4 @@
+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
diff --git a/NuKeeper/Commands/GitHubNuKeeperCommand.cs b/NuKeeper/Commands/GitHubNuKeeperCommand.cs
index d6dd1a8d3..cd5b02e68 100644
--- a/NuKeeper/Commands/GitHubNuKeeperCommand.cs
+++ b/NuKeeper/Commands/GitHubNuKeeperCommand.cs
@@ -1,136 +1,136 @@
-using System;
-using System.Threading.Tasks;
-using System.Linq;
-using McMaster.Extensions.CommandLineUtils;
-using NuKeeper.Configuration;
-using NuKeeper.Engine;
-using NuKeeper.Inspection.Logging;
-using NuKeeper.Inspection.Report;
-
-namespace NuKeeper.Commands
-{
-    internal abstract class GitHubNuKeeperCommand : CommandBase
-    {
-        private readonly GitHubEngine _engine;
-
-        [Argument(1, Name = "Token",
-            Description =
-                "GitHub personal access token to authorise access to GitHub server.")]
-        // ReSharper disable once UnassignedGetOnlyAutoProperty
-        // ReSharper disable once MemberCanBePrivate.Global
-        protected string GitHubToken { get; }
-
-        [Option(CommandOptionType.SingleValue, ShortName = "x", LongName = "maxrepo",
-            Description = "The maximum number of repositories to change. Defaults to 10.")]
-        // ReSharper disable once MemberCanBePrivate.Global
-        protected int AllowedMaxRepositoriesChangedChange { get; } = 10;
-
-        [Option(CommandOptionType.SingleValue, ShortName = "f", LongName = "fork",
-            Description =
-                "Prefer to make branches on a fork of the target repository, or on that repository itself. Allowed values are PreferFork, PreferSingleRepository, SingleRepositoryOnly. Defaults to PreferFork.")]
-        // ReSharper disable once MemberCanBePrivate.Global
-        protected ForkMode ForkMode { get; } = ForkMode.PreferFork;
-
-        [Option(CommandOptionType.SingleValue, ShortName = "p", LongName = "maxpr",
-            Description = "The maximum number of pull requests to raise on any repository. Defaults to 3.")]
-        // ReSharper disable once MemberCanBePrivate.Global
-        protected int MaxPullRequestsPerRepository { get; } = 3;
-
-        [Option(CommandOptionType.MultipleValue, ShortName = "l", LongName = "label",
-            Description =
-                "Label to apply to GitHub pull requests. Defaults to 'nukeeper'. Multiple labels can be provided by specifying this option multiple times.")]
-        // ReSharper disable once UnassignedGetOnlyAutoProperty
-        // ReSharper disable once MemberCanBePrivate.Global
-        protected string[] Label { get; } = { "nukeeper" };
-
-        [Option(CommandOptionType.SingleValue, ShortName = "g", LongName = "api",
-            Description =
-                "GitHub Api Base Url. If you are using an internal GitHub server and not the public one, you must set it to the api url for your GitHub server.")]
-        // ReSharper disable once UnassignedGetOnlyAutoProperty
-        // ReSharper disable once MemberCanBePrivate.Global
-        protected string GithubApiEndpoint { get; }
-
-        [Option(CommandOptionType.SingleValue, ShortName = "r", LongName = "report",
-            Description =
-                "Controls if a CSV report file of possible updates is generated. Allowed values are Off, On, ReportOnly (which skips applying updates). Defaults to Off.")]
-        protected ReportMode ReportMode { get; } = ReportMode.Off;
-
-        protected GitHubNuKeeperCommand(GitHubEngine engine, IConfigureLogLevel logger, IFileSettingsCache fileSettingsCache) :
-            base(logger, fileSettingsCache)
-        {
-            _engine = engine;
-        }
-
-        protected override ValidationResult PopulateSettings(SettingsContainer settings)
-        {
-            var baseResult = base.PopulateSettings(settings);
-            if (!baseResult.IsSuccess)
-            {
-                return baseResult;
-            }
-
-            var apiBase = GithubEndpointWithFallback();
-
-            if (string.IsNullOrWhiteSpace(apiBase))
-            {
-                return ValidationResult.Failure("No GitHub Api base found");
-            }
-
-            if (!Uri.TryCreate(apiBase, UriKind.Absolute, out var githubUri))
-            {
-                return ValidationResult.Failure($"Bad GitHub Api base '{GithubApiEndpoint}'");
-            }
-
-            var token = ReadToken();
-            if (string.IsNullOrWhiteSpace(token))
-            {
-                return ValidationResult.Failure("The required GitHub access token was not found");
-            }
-
-            var githubUrl = GitSettingsReader.EnsureTrailingSlash(githubUri);
-
-            settings.GithubAuthSettings = new GithubAuthSettings(githubUrl, token);
-
-            settings.UserSettings.MaxRepositoriesChanged = AllowedMaxRepositoriesChangedChange;
-            settings.PackageFilters.MaxPackageUpdates = MaxPullRequestsPerRepository;
-            settings.UserSettings.ForkMode = ForkMode;
-            settings.UserSettings.ReportMode = ReportMode;
-
-            var fileSetting = FileSettingsCache.Get();
-
-            settings.SourceControlServerSettings.Labels =
-                Concat.AllPopulated(Label, fileSetting.Label).ToList();
-
-            return ValidationResult.Success;
-        }
-
-        protected override async Task<int> Run(SettingsContainer settings)
-        {
-            await _engine.Run(settings);
-            return 0;
-        }
-
-        private string GithubEndpointWithFallback()
-        {
-            const string defaultGithubApi = "https://api.github.com/";
-            var fileSetting = FileSettingsCache.Get();
-            return Concat.FirstValue(GithubApiEndpoint, fileSetting.Api, defaultGithubApi);
-        }
-
-        private string ReadToken()
-        {
-            if (!string.IsNullOrWhiteSpace(GitHubToken))
-            {
-                return GitHubToken;
-            }
-
-            var envToken = Environment.GetEnvironmentVariable("NuKeeper_github_token");
-            if (!string.IsNullOrWhiteSpace(envToken))
-            {
-                return envToken;
-            }
-
-            return string.Empty;
-        }
-    }
-}
+using System;
+using System.Threading.Tasks;
+using System.Linq;
+using McMaster.Extensions.CommandLineUtils;
+using NuKeeper.Configuration;
+using NuKeeper.Engine;
+using NuKeeper.Inspection.Logging;
+using NuKeeper.Inspection.Report;
+
+namespace NuKeeper.Commands
+{
+    internal abstract class GitHubNuKeeperCommand : CommandBase
+    {
+        private readonly GitHubEngine _engine;
+
+        [Argument(1, Name = "Token",
+            Description =
+                "GitHub personal access token to authorise access to GitHub server.")]
+        // ReSharper disable once UnassignedGetOnlyAutoProperty
+        // ReSharper disable once MemberCanBePrivate.Global
+        protected string GitHubToken { get; }
+
+        [Option(CommandOptionType.SingleValue, ShortName = "x", LongName = "maxrepo",
+            Description = "The maximum number of repositories to change. Defaults to 10.")]
+        // ReSharper disable once MemberCanBePrivate.Global
+        protected int AllowedMaxRepositoriesChangedChange { get; } = 10;
+
+        [Option(CommandOptionType.SingleValue, ShortName = "f", LongName = "fork",
+            Description =
+                "Prefer to make branches on a fork of the target repository, or on that repository itself. Allowed values are PreferFork, PreferSingleRepository, SingleRepositoryOnly. Defaults to PreferFork.")]
+        // ReSharper disable once MemberCanBePrivate.Global
+        protected ForkMode ForkMode { get; } = ForkMode.PreferFork;
+
+        [Option(CommandOptionType.SingleValue, ShortName = "p", LongName = "maxpr",
+            Description = "The maximum number of pull requests to raise on any repository. Defaults to 3.")]
+        // ReSharper disable once MemberCanBePrivate.Global
+        protected int MaxPullRequestsPerRepository { get; } = 3;
+
+        [Option(CommandOptionType.MultipleValue, ShortName = "l", LongName = "label",
+            Description =
+                "Label to apply to GitHub pull requests. Defaults to 'nukeeper'. Multiple labels can be provided by specifying this option multiple times.")]
+        // ReSharper disable once UnassignedGetOnlyAutoProperty
+        // ReSharper disable once MemberCanBePrivate.Global
+        protected string[] Label { get; } = { "nukeeper" };
+
+        [Option(CommandOptionType.SingleValue, ShortName = "g", LongName = "api",
+            Description =
+                "GitHub Api Base Url. If you are using an internal GitHub server and not the public one, you must set it to the api url for your GitHub server.")]
+        // ReSharper disable once UnassignedGetOnlyAutoProperty
+        // ReSharper disable once MemberCanBePrivate.Global
+        protected string GithubApiEndpoint { get; }
+
+        [Option(CommandOptionType.SingleValue, ShortName = "r", LongName = "report",
+            Description =
+                "Controls if a CSV report file of possible updates is generated. Allowed values are Off, On, ReportOnly (which skips applying updates). Defaults to Off.")]
+        protected ReportMode ReportMode { get; } = ReportMode.Off;
+
+        protected GitHubNuKeeperCommand(GitHubEngine engine, IConfigureLogLevel logger, IFileSettingsCache fileSettingsCache) :
+            base(logger, fileSettingsCache)
+        {
+            _engine = engine;
+        }
+
+        protected override ValidationResult PopulateSettings(SettingsContainer settings)
+        {
+            var baseResult = base.PopulateSettings(settings);
+            if (!baseResult.IsSuccess)
+            {
+                return baseResult;
+            }
+
+            var apiBase = GithubEndpointWithFallback();
+
+            if (string.IsNullOrWhiteSpace(apiBase))
+            {
+                return ValidationResult.Failure("No GitHub Api base found");
+            }
+
+            if (!Uri.TryCreate(apiBase, UriKind.Absolute, out var githubUri))
+            {
+                return ValidationResult.Failure($"Bad GitHub Api base '{GithubApiEndpoint}'");
+            }
+
+            var token = ReadToken();
+            if (string.IsNullOrWhiteSpace(token))
+            {
+                return ValidationResult.Failure("The required GitHub access token was not found");
+            }
+
+            var githubUrl = GitSettingsReader.EnsureTrailingSlash(githubUri);
+
+            settings.GithubAuthSettings = new GithubAuthSettings(githubUrl, token);
+
+            settings.UserSettings.MaxRepositoriesChanged = AllowedMaxRepositoriesChangedChange;
+            settings.PackageFilters.MaxPackageUpdates = MaxPullRequestsPerRepository;
+            settings.UserSettings.ForkMode = ForkMode;
+            settings.UserSettings.ReportMode = ReportMode;
+
+            var fileSetting = FileSettingsCache.Get();
+
+            settings.SourceControlServerSettings.Labels =
+                Concat.AllPopulated(Label, fileSetting.Label).ToList();
+
+            return ValidationResult.Success;
+        }
+
+        protected override async Task<int> Run(SettingsContainer settings)
+        {
+            await _engine.Run(settings);
+            return 0;
+        }
+
+        private string GithubEndpointWithFallback()
+        {
+            const string defaultGithubApi = "https://api.github.com/";
+            var fileSetting = FileSettingsCache.Get();
+            return Concat.FirstValue(GithubApiEndpoint, fileSetting.Api, defaultGithubApi);
+        }
+
+        private string ReadToken()
+        {
+            if (!string.IsNullOrWhiteSpace(GitHubToken))
+            {
+                return GitHubToken;
+            }
+
+            var envToken = Environment.GetEnvironmentVariable("NuKeeper_github_token");
+            if (!string.IsNullOrWhiteSpace(envToken))
+            {
+                return envToken;
+            }
+
+            return string.Empty;
+        }
+    }
+}