build.cake

#tool dotnet:?package=GitVersion.Tool&version=5.12.0 // 6.0.0-beta.7 supports .NET 8, 7, 6
#tool dotnet:?package=coveralls.net&version=4.0.1
#tool nuget:?package=ReportGenerator&version=5.2.4
#addin nuget:?package=Newtonsoft.Json&version=13.0.3
#addin nuget:?package=System.Text.Encodings.Web&version=8.0.0
#addin nuget:?package=Cake.Coveralls&version=1.1.0

#r "Spectre.Console"
using Spectre.Console

using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;

const string Release = "Release"; // task name, target, and Release config name
var compileConfig = Argument("configuration", Release); // compile

// build artifacts
var artifactsDir = Directory("artifacts");

// unit testing
var artifactsForUnitTestsDir = artifactsDir + Directory("UnitTests");
var unitTestAssemblies = @"./test/Ocelot.UnitTests/Ocelot.UnitTests.csproj";
var minCodeCoverage = 0.80d;
var coverallsRepoToken = "OCELOT_COVERALLS_TOKEN";
var coverallsRepo = "https://coveralls.io/github/ThreeMammals/Ocelot";

// acceptance testing
var artifactsForAcceptanceTestsDir = artifactsDir + Directory("AcceptanceTests");
var acceptanceTestAssemblies = @"./test/Ocelot.AcceptanceTests/Ocelot.AcceptanceTests.csproj";

// integration testing
var artifactsForIntegrationTestsDir = artifactsDir + Directory("IntegrationTests");
var integrationTestAssemblies = @"./test/Ocelot.IntegrationTests/Ocelot.IntegrationTests.csproj";

// benchmark testing
var artifactsForBenchmarkTestsDir = artifactsDir + Directory("BenchmarkTests");
var benchmarkTestAssemblies = @"./test/Ocelot.Benchmarks";

// packaging
var packagesDir = artifactsDir + Directory("Packages");
var artifactsFile = packagesDir + File("artifacts.txt");
var releaseNotesFile = packagesDir + File("ReleaseNotes.md");
var releaseNotes = new List<string>();

// stable releases
var tagsUrl = "https://api.github.com/repos/ThreeMammals/ocelot/releases/tags/";
var nugetFeedStableKey = EnvironmentVariable("OCELOT_NUTGET_API_KEY");
var nugetFeedStableUploadUrl = "https://www.nuget.org/api/v2/package";
var nugetFeedStableSymbolsUploadUrl = "https://www.nuget.org/api/v2/package";

// internal build variables - don't change these.
string committedVersion = "0.0.0-dev";
GitVersion versioning = null;
int releaseId = 0;
bool IsTechnicalRelease = false;
string gitHubUsername = "TomPallister";
string gitHubPassword = Environment.GetEnvironmentVariable("OCELOT_GITHUB_API_KEY");

var target = Argument("target", "Default");
var slnFile = (target == Release) ? $"./Ocelot.{Release}.sln" : "./Ocelot.sln";
Information("\nTarget: " + target);
Information("Build: " + compileConfig);
Information("Solution: " + slnFile);

TaskTeardown(context => {
	AnsiConsole.Markup($"[green]DONE[/] {context.Task.Name}\n");
});

Task("Default")
	.IsDependentOn("Build");

Task("Build")
	.IsDependentOn("RunTests");

Task("ReleaseNotes")
	.IsDependentOn("CreateReleaseNotes");

Task("RunTests")
	.IsDependentOn("RunUnitTests")
	.IsDependentOn("RunAcceptanceTests")
	.IsDependentOn("RunIntegrationTests");

Task(Release)
	.IsDependentOn("Build")
	.IsDependentOn("CreateReleaseNotes")
	.IsDependentOn("CreateArtifacts")
	.IsDependentOn("PublishGitHubRelease")
    .IsDependentOn("PublishToNuget");

Task("Compile")
	.IsDependentOn("Clean")
	.IsDependentOn("Version")
	.Does(() =>
	{	
		Information("Build: " + compileConfig);
		Information("Solution: " + slnFile);
		var settings = new DotNetBuildSettings
		{
			Configuration = compileConfig,
		};
		if (target != Release)
		{
			settings.Framework = "net8.0"; // build using .NET 8 SDK only
		}
		Information($"Settings {nameof(DotNetBuildSettings.Framework)}: {settings.Framework}");
		Information($"Settings {nameof(DotNetBuildSettings.Configuration)}: {settings.Configuration}");
		DotNetBuild(slnFile, settings);
	});

Task("Clean")
	.Does(() =>
	{
        if (DirectoryExists(artifactsDir))
        {
            DeleteDirectory(artifactsDir, new DeleteDirectorySettings {
				Recursive = true,
				Force = true
			});
        }
        CreateDirectory(artifactsDir);
	});

Task("Version")
	.Does(() =>
	{
		versioning = GetNuGetVersionForCommit();
		var nugetVersion = versioning.NuGetVersion;
		Information("SemVer version number: " + nugetVersion);

		if (IsRunningOnCircleCI())
		{
			Information("Persisting version number...");
			PersistVersion(committedVersion, nugetVersion);
		}
		else
		{
			Information("We are not running on build server, so we won't persist the version number.");
		}
	});

Task("CreateReleaseNotes")
	.IsDependentOn("Version")
	.Does(() =>
	{
		Information($"Generating release notes at {releaseNotesFile}");

		// local helper function
		Func<string, IEnumerable<string>> GitHelper = (command) =>
		{
			IEnumerable<string> output;
			var exitCode = StartProcess(
				"git",
				new ProcessSettings { Arguments = command, RedirectStandardOutput = true },
				out output);
			if (exitCode != 0)
				throw new Exception("Failed to execute Git command: " + command);
			return output;
		};

		var lastReleaseTags = GitHelper("describe --tags --abbrev=0 --exclude net*");
		var lastRelease = lastReleaseTags.First(t => !t.StartsWith("net")); // skip 'net*-vX.Y.Z' tag and take 'major.minor.build'
		var releaseVersion = versioning.NuGetVersion;

		// Read main header from Git file, substitute version in header, and add content further...
		Information("{0}  New release tag is " + releaseVersion);
		Information("{1} Last release tag is " + lastRelease);
		var releaseHeader = string.Format(System.IO.File.ReadAllText("./ReleaseNotes.md"), releaseVersion, lastRelease);
		releaseNotes = new List<string> { releaseHeader };
		if (IsTechnicalRelease)
		{
			WriteReleaseNotes();
			return;
		}

		var shortlogSummary = GitHelper($"shortlog --no-merges --numbered --summary {lastRelease}..HEAD")
			.ToList();
		var re = new Regex(@"^[\s\t]*(?'commits'\d+)[\s\t]+(?'author'.*)$");
		var summary = shortlogSummary
			.Where(x => re.IsMatch(x))
			.Select(x => re.Match(x))
			.Select(m => new
			{
				commits = int.Parse(m.Groups["commits"]?.Value ?? "0"),
				author = m.Groups["author"]?.Value?.Trim() ?? string.Empty,
			})
			.ToList();

		// Starring aka Release Influencers
		var starring = new List<string>();
		foreach (var contributor in summary)
		{
			var stars = string.Join(string.Empty, Enumerable.Repeat(":star:", contributor.commits));
			starring.Add($"{stars}  {contributor.author}");
		}

		// Honoring aka Top Contributors
		const int top3 = 3; // going to create Top 3
		var topContributors = new List<string>();
		var commitsGrouping = summary
			.GroupBy(x => x.commits)
			.Select(g => new
			{
				commits = g.Key,
				count = g.Count(),
				authors = g.Select(x => x.author).ToList(),
			})
			.OrderByDescending(x => x.commits)
			.ToList();

		// local helpers
		string[] places = new[] { "1st", "2nd", "3rd" };
		static string Plural(int n) => n == 1 ? "" : "s";
		static string Honor(string place, string author, int commits, string suffix = null)
			=> $"{place[0]}<sup>{place[1..]}</sup> :{place}_place_medal: goes to **{author}** for delivering **{commits}** feature{Plural(commits)} {suffix ?? ""}";
		static string HonorForFiles(string place, string author, int commits, int files, string suffix = null)
			=> Honor(place, author, commits, $"in **{files}** file{Plural(files)} changed {suffix ?? ""}");
		static string HonorForInsertions(string place, string author, int commits, int files, int insertions, string suffix = null)
			=> HonorForFiles(place, author, commits, files, $"with **{insertions}** insertion{Plural(insertions)} {suffix ?? ""}");
		static string HonorForDeletions(string place, string author, int commits, int files, int insertions, int deletions)
			=> HonorForInsertions(place, author, commits, files, insertions, $"and **{deletions}** deletion{Plural(deletions)}");

		foreach (var group in commitsGrouping)
		{
			if (topContributors.Count >= top3) break;
			if (group.count == 1)
			{
				var place = places[topContributors.Count];
				var author = group.authors.First();
				var honoring = Honor(place, author, group.commits);
				topContributors.Add(honoring);
			}
			else // multiple candidates with the same number of commits, so, group by files changed
			{
				var statistics = new List<(string Contributor, int Files, int Insertions, int Deletions)>();
				var shortstatRegex = new Regex(@"^\s*(?'files'\d+)\s+files?\s+changed(?'ins',\s+(?'insertions'\d+)\s+insertions?\(\+\))?(?'del',\s+(?'deletions'\d+)\s+deletions?\(\-\))?\s*$");
				// Collect statistics from git log & shortlog
				foreach (var author in group.authors)
				{
					if (!statistics.Exists(s => s.Contributor == author))
					{
						var shortstat = GitHelper($"log --no-merges --author=\"{author}\" --shortstat --pretty=oneline {lastRelease}..HEAD");
						var data = shortstat
							.Where(x => shortstatRegex.IsMatch(x))
							.Select(x => shortstatRegex.Match(x))
							.Select(m => new
							{
								files = int.Parse(m.Groups["files"]?.Value ?? "0"),
								insertions = int.Parse(m.Groups["insertions"]?.Value ?? "0"),
								deletions = int.Parse(m.Groups["deletions"]?.Value ?? "0"),
							})
							.ToList();
						statistics.Add((author, data.Sum(x => x.files), data.Sum(x => x.insertions), data.Sum(x => x.deletions)));
					}
				}
				var filesGrouping = statistics
					.GroupBy(x => x.Files)
					.Select(g => new
					{
						files = g.Key,
						count = g.Count(),
						contributors = g.SelectMany(x => statistics.Where(s => s.Contributor==x.Contributor && s.Files==g.Key)).ToList(),
					})
					.OrderByDescending(x => x.files)
					.ToList();
				foreach (var fGroup in filesGrouping)
				{
					if (topContributors.Count >= top3) break;
					if (fGroup.count == 1)
					{
						var place = places[topContributors.Count];
						var contributor = fGroup.contributors.First();
						var honoring = HonorForFiles(place, contributor.Contributor, group.commits, contributor.Files);
						topContributors.Add(honoring);
					}
					else // multiple candidates with the same number of commits, with the same number of changed files, so, group by additions (insertions)
					{
						var insertionsGrouping = fGroup.contributors
							.GroupBy(x => x.Insertions)
							.Select(g => new
							{
								insertions = g.Key,
								count = g.Count(),
								contributors = g.SelectMany(x => fGroup.contributors.Where(s => s.Contributor == x.Contributor && s.Insertions == g.Key)).ToList(),
							})
							.OrderByDescending(x => x.insertions)
							.ToList();
						foreach (var insGroup in insertionsGrouping)
						{
							if (topContributors.Count >= top3) break;
							if (insGroup.count == 1)
							{
								var place = places[topContributors.Count];
								var contributor = insGroup.contributors.First();
								var honoring = HonorForInsertions(place, contributor.Contributor, group.commits, contributor.Files, contributor.Insertions);
								topContributors.Add(honoring);
							}
							else // multiple candidates with the same number of commits, with the same number of changed files, with the same number of insertions, so, order desc by deletions
							{
								foreach (var contributor in insGroup.contributors.OrderByDescending(x => x.Deletions))
								{
									if (topContributors.Count >= top3) break;
									var place = places[topContributors.Count];
									var honoring = HonorForDeletions(place, contributor.Contributor, group.commits, contributor.Files, contributor.Insertions, contributor.Deletions);
									topContributors.Add(honoring);
								}
							}
						}
					}
				}
			}
		} // END of Top 3

		// releaseNotes.Add("### Honoring :medal_sports: aka Top Contributors :clap:");
		// releaseNotes.AddRange(topContributors);
		// releaseNotes.Add("");
		// releaseNotes.Add("### Starring :star: aka Release Influencers :bowtie:");
		// releaseNotes.AddRange(starring);
		releaseNotes.Add("");
		releaseNotes.Add($"### Features in Release {releaseVersion}");
		var commitsHistory = GitHelper($"log --no-merges --date=format:\"%A, %B %d at %H:%M\" --pretty=format:\"<sub>%h by **%aN** on %ad &rarr;</sub>%n%s\" {lastRelease}..HEAD");
		releaseNotes.AddRange(commitsHistory);

		WriteReleaseNotes();
	});

private void WriteReleaseNotes()
{
	Information($"RUN {nameof(WriteReleaseNotes)} ...");

	EnsureDirectoryExists(packagesDir);
	System.IO.File.WriteAllLines(releaseNotesFile, releaseNotes, Encoding.UTF8);

	var content = System.IO.File.ReadAllText(releaseNotesFile, Encoding.UTF8);
	if (string.IsNullOrEmpty(content))
	{
		System.IO.File.WriteAllText(releaseNotesFile, "No commits since last release");
	}

	Information("Release notes are >>>\n{0}<<<", content);
	Information($"EXITED {nameof(WriteReleaseNotes)}");
}

Task("RunUnitTests")
	.IsDependentOn("Compile")
	.Does(() =>
	{
		var testSettings = new DotNetTestSettings
		{
			Configuration = compileConfig,
			ResultsDirectory = artifactsForUnitTestsDir,
			ArgumentCustomization = args => args
				.Append("--no-restore")
				.Append("--no-build")
				.Append("--collect:\"XPlat Code Coverage\"") // this create the code coverage report
				.Append("--verbosity:detailed")
				.Append("--consoleLoggerParameters:ErrorsOnly")
		};
		if (target != Release)
		{
			testSettings.Framework = "net8.0"; // .NET 8 SDK only
		}
		EnsureDirectoryExists(artifactsForUnitTestsDir);
		DotNetTest(unitTestAssemblies, testSettings);

		var coverageSummaryFile = GetSubDirectories(artifactsForUnitTestsDir)
			.First()
			.CombineWithFilePath(File("coverage.cobertura.xml"));
		Information(coverageSummaryFile);
		Information(artifactsForUnitTestsDir);

		GenerateReport(coverageSummaryFile);
		
		if (IsRunningOnCircleCI() && IsMainOrDevelop())
		{
			var repoToken = EnvironmentVariable(coverallsRepoToken);
			if (string.IsNullOrEmpty(repoToken))
			{
				throw new Exception(string.Format("Coveralls repo token not found. Set environment variable '{0}'", coverallsRepoToken));
			}

			Information(string.Format("Uploading test coverage to {0}", coverallsRepo));
			CoverallsNet(coverageSummaryFile, CoverallsNetReportType.OpenCover, new CoverallsNetSettings()
			{
				RepoToken = repoToken
			});
		}
		else
		{
			Information("We are not running on the build server so we won't publish the coverage report to coveralls.io");
		}

		var sequenceCoverage = XmlPeek(coverageSummaryFile, "//coverage/@line-rate");
		var branchCoverage = XmlPeek(coverageSummaryFile, "//coverage/@line-rate");

		Information("Sequence Coverage: " + sequenceCoverage);
	
		if(double.Parse(sequenceCoverage) < minCodeCoverage)
		{
			var whereToCheck = !IsRunningOnCircleCI() ? coverallsRepo : artifactsForUnitTestsDir;
			throw new Exception(string.Format("Code coverage fell below the threshold of {0}%. You can find the code coverage report at {1}", minCodeCoverage, whereToCheck));
		};
	});

Task("RunAcceptanceTests")
	.IsDependentOn("Compile")
	.Does(() =>
	{
		var settings = new DotNetTestSettings
		{
			Configuration = compileConfig,
			Framework = "net8.0", // .NET 8 SDK only
			ArgumentCustomization = args => args
				.Append("--no-restore")
				.Append("--no-build")
		};
		if (target != Release)
		{
			settings.Framework = "net8.0"; // .NET 8 SDK only
		}
		EnsureDirectoryExists(artifactsForAcceptanceTestsDir);
		DotNetTest(acceptanceTestAssemblies, settings);
	});

Task("RunIntegrationTests")
	.IsDependentOn("Compile")
	.Does(() =>
	{
		var settings = new DotNetTestSettings
		{
			Configuration = compileConfig,
			Framework = "net8.0", // .NET 8 SDK only
			ArgumentCustomization = args => args
				.Append("--no-restore")
				.Append("--no-build")
		};
		if (target != Release)
		{
			settings.Framework = "net8.0"; // .NET 8 SDK only
		}
		EnsureDirectoryExists(artifactsForIntegrationTestsDir);
		DotNetTest(integrationTestAssemblies, settings);
	});

Task("CreateArtifacts")
	.IsDependentOn("CreateReleaseNotes")
	.IsDependentOn("Compile")
	.Does(() =>
	{
		WriteReleaseNotes();
		System.IO.File.AppendAllLines(artifactsFile, new[] { "ReleaseNotes.md" });

		if (!IsTechnicalRelease)
		{
			CopyFiles("./src/**/Release/Ocelot.*.nupkg", packagesDir);
			var projectFiles = GetFiles("./src/**/Release/Ocelot.*.nupkg");
			foreach(var projectFile in projectFiles)
			{
				System.IO.File.AppendAllLines(
					artifactsFile,
					new[] { projectFile.GetFilename().FullPath }
				);
			}
		}

		var artifacts = System.IO.File.ReadAllLines(artifactsFile)
			.Distinct();

		Information($"Listing all {nameof(artifacts)}...");
		foreach (var artifact in artifacts)
		{
			var codePackage = packagesDir + File(artifact);
			if (FileExists(codePackage))
			{
				Information("Created package " + codePackage);
			} else {
				Information("Package does not exist: " + codePackage);
			}
		}
	});

Task("PublishGitHubRelease")
	.IsDependentOn("CreateArtifacts")
	.Does(() => 
	{
		if (IsRunningOnCircleCI())
		{
			var path = packagesDir.ToString() + @"/**/*";

			CreateGitHubRelease();

			foreach (var file in GetFiles(path))
			{
				UploadFileToGitHubRelease(file);
			}

			CompleteGitHubRelease();
		}
	});

Task("EnsureStableReleaseRequirements")
    .Does(() =>	
    {
		Information("Check if stable release...");

        if (!IsRunningOnCircleCI())
		{
           throw new Exception("Stable release should happen via circleci");
		}

		Information("Release is stable...");
	});

Task("DownloadGitHubReleaseArtifacts")
    .Does(async () =>
    {
		try
		{
			// hack to let GitHub catch up, todo - refactor to poll
			System.Threading.Thread.Sleep(5000);
			EnsureDirectoryExists(packagesDir);

			var releaseUrl = tagsUrl + versioning.NuGetVersion;
			var releaseInfo = await GetResourceAsync(releaseUrl);
        	var assets_url = Newtonsoft.Json.Linq.JObject.Parse(releaseInfo)
				.Value<string>("assets_url");

			var assets = await GetResourceAsync(assets_url);
			foreach(var asset in Newtonsoft.Json.JsonConvert.DeserializeObject<Newtonsoft.Json.Linq.JArray>(assets))
			{
				var file = packagesDir + File(asset.Value<string>("name"));
				DownloadFile(asset.Value<string>("browser_download_url"), file);
			}
		}
		catch(Exception exception)
		{
			Information("There was an exception " + exception);
			throw;
		}
	});

Task("PublishToNuget")
    .IsDependentOn("DownloadGitHubReleaseArtifacts")
    .Does(() =>
    {
		if (IsTechnicalRelease)
		{
			Information("Skipping of publishing to NuGet because of technical release...");
			return;
		}

		if (IsRunningOnCircleCI())
		{
			PublishPackages(packagesDir, artifactsFile, nugetFeedStableKey, nugetFeedStableUploadUrl, nugetFeedStableSymbolsUploadUrl);
		}
	});

Task("Void").Does(() => {});

RunTarget(target);

private void GenerateReport(Cake.Core.IO.FilePath coverageSummaryFile)
{
	var dir = System.IO.Directory.GetCurrentDirectory();
	Information(dir);

	var reportSettings = new ProcessArgumentBuilder();
	reportSettings.Append($"-targetdir:" + $"{dir}/{artifactsForUnitTestsDir}");
	reportSettings.Append($"-reports:" + coverageSummaryFile);

	var toolpath = Context.Tools.Resolve("net7.0/ReportGenerator.dll");
	Information($"Tool Path : {toolpath.ToString()}");

	DotNetExecute(toolpath, reportSettings);
}

/// Gets unique nuget version for this commit
private GitVersion GetNuGetVersionForCommit()
{
    GitVersion(new GitVersionSettings{
        UpdateAssemblyInfo = false,
        OutputType = GitVersionOutput.BuildServer
    });

    return GitVersion(new GitVersionSettings{ OutputType = GitVersionOutput.Json });
}

/// Updates project version in all of our projects
private void PersistVersion(string committedVersion, string newVersion)
{
	Information(string.Format("We'll search all csproj files for {0} and replace with {1}...", committedVersion, newVersion));

	var projectFiles = GetFiles("./**/*.csproj");

	foreach(var projectFile in projectFiles)
	{
		var file = projectFile.ToString();
 
		Information(string.Format("Updating {0}...", file));

		var updatedProjectFile = System.IO.File.ReadAllText(file)
			.Replace(committedVersion, newVersion);

		System.IO.File.WriteAllText(file, updatedProjectFile);
	}
}

/// Publishes code and symbols packages to nuget feed, based on contents of artifacts file
private void PublishPackages(ConvertableDirectoryPath packagesDir, ConvertableFilePath artifactsFile, string feedApiKey, string codeFeedUrl, string symbolFeedUrl)
{
		Information("Publishing to NuGet...");
        var artifacts = System.IO.File
            .ReadAllLines(artifactsFile)
			.Distinct();
		
		foreach(var artifact in artifacts)
		{
			if (artifact == "ReleaseNotes.md") 
			{
				continue;
			}

			var codePackage = packagesDir + File(artifact);
			Information("Pushing package " + codePackage + "...");

			Information("Calling DotNetNuGetPush");
			DotNetNuGetPush(
				codePackage,
				new DotNetNuGetPushSettings { ApiKey = feedApiKey, Source = codeFeedUrl }
			);
		}
}

private void CreateGitHubRelease()
{
	var json = $"{{ \"tag_name\": \"{versioning.NuGetVersion}\", \"target_commitish\": \"main\", \"name\": \"{versioning.NuGetVersion}\", \"body\": \"{ReleaseNotesAsJson()}\", \"draft\": true, \"prerelease\": true }}";
	
	var content = new System.Net.Http.StringContent(json, System.Text.Encoding.UTF8, "application/json");

	using (var client = new System.Net.Http.HttpClient())
	{	
		client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue(
        	"Basic",
			Convert.ToBase64String(System.Text.ASCIIEncoding.ASCII.GetBytes($"{gitHubUsername}:{gitHubPassword}"))
		);
		client.DefaultRequestHeaders.Add("User-Agent", "Ocelot Release");

		var result = client.PostAsync("https://api.github.com/repos/ThreeMammals/Ocelot/releases", content).Result;
		if(result.StatusCode != System.Net.HttpStatusCode.Created) 
		{
			throw new Exception("CreateGitHubRelease result.StatusCode = " + result.StatusCode);
		}
		var returnValue = result.Content.ReadAsStringAsync().Result;
		dynamic test = Newtonsoft.Json.JsonConvert.DeserializeObject<Newtonsoft.Json.Linq.JObject>(returnValue);
		releaseId = test.id;
	}
}

private string ReleaseNotesAsJson()
{
	return System.Text.Encodings.Web.JavaScriptEncoder.Default.Encode(System.IO.File.ReadAllText(releaseNotesFile));
}

private void UploadFileToGitHubRelease(FilePath file)
{
	var data = System.IO.File.ReadAllBytes(file.FullPath);
	var content = new System.Net.Http.ByteArrayContent(data);
	content.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/octet-stream");

	using (var client = new System.Net.Http.HttpClient())
	{	
		client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue(
        	"Basic",
			Convert.ToBase64String(System.Text.ASCIIEncoding.ASCII.GetBytes($"{gitHubUsername}:{gitHubPassword}"))
		);
		client.DefaultRequestHeaders.Add("User-Agent", "Ocelot Release");

		var result = client.PostAsync($"https://uploads.github.com/repos/ThreeMammals/Ocelot/releases/{releaseId}/assets?name={file.GetFilename()}", content).Result;
		if(result.StatusCode != System.Net.HttpStatusCode.Created) 
		{
			throw new Exception("UploadFileToGitHubRelease result.StatusCode = " + result.StatusCode);
		}
	}
}

private void CompleteGitHubRelease()
{
	var json = $"{{ \"tag_name\": \"{versioning.NuGetVersion}\", \"target_commitish\": \"main\", \"name\": \"{versioning.NuGetVersion}\", \"body\": \"{ReleaseNotesAsJson()}\", \"draft\": false, \"prerelease\": false }}";
	var request = new System.Net.Http.HttpRequestMessage(new System.Net.Http.HttpMethod("Patch"), $"https://api.github.com/repos/ThreeMammals/Ocelot/releases/{releaseId}");
	request.Content = new System.Net.Http.StringContent(json, System.Text.Encoding.UTF8, "application/json");

	using (var client = new System.Net.Http.HttpClient())
	{	
		client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue(
        	"Basic",
			Convert.ToBase64String(System.Text.ASCIIEncoding.ASCII.GetBytes($"{gitHubUsername}:{gitHubPassword}"))
		);
		client.DefaultRequestHeaders.Add("User-Agent", "Ocelot Release");

		var result = client.SendAsync(request).Result;
		if (result.StatusCode != System.Net.HttpStatusCode.OK) 
		{
			throw new Exception("CompleteGitHubRelease result.StatusCode = " + result.StatusCode);
		}
	}
}

/// gets the resource from the specified url
private async Task<string> GetResourceAsync(string url)
{
	try
	{
		Information("Getting resource from " + url);

		using var client = new System.Net.Http.HttpClient();
		client.DefaultRequestHeaders.Accept.ParseAdd("application/vnd.github.v3+json");
		client.DefaultRequestHeaders.UserAgent.ParseAdd("BuildScript");

		using var response = await client.GetAsync(url);
		response.EnsureSuccessStatusCode();
		var content = await response.Content.ReadAsStringAsync();
		Information("Response is >>>" + Environment.NewLine + content + Environment.NewLine + "<<<");
		return content;
	}
	catch(Exception exception)
	{
		Information("There was an exception " + exception);
		throw;
	}
}

private bool IsRunningOnCircleCI()
{
    return !string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable("CIRCLECI"));
}

private bool IsMainOrDevelop()
{
	var env = Environment.GetEnvironmentVariable("CIRCLE_BRANCH").ToLower();

    return env == "main" || env == "develop";
}