private void CreatePRFromReleaseToSource(GitHubClient gitHubClient, Repository gitHubRepo, string repoUrl, string repoName, GitClient gitClient)
{
// Check if a PR has already been opened from release branch into source branch.
// If it has, log the PR URL and move on.
// This ensures the impotency of the pipeline.
var githubOrg = options.GithubOrgName;
var branchFrom = $"{options.CandidateBranch}-cleanup";
var branchTo = options.SourceBranch;
if (!gitHubClient.TryGetPullRequest(gitHubRepo, githubOrg, branchFrom, branchTo, out var pullRequest))
{
try
{
if (gitClient == null)
{
using (gitClient = GitClient.FromRemote(repoUrl))
{
gitClient.CheckoutRemoteBranch(options.ReleaseBranch);
gitClient.ForcePush(branchFrom);
}
}
else
{
gitClient.CheckoutRemoteBranch(options.ReleaseBranch);
gitClient.ForcePush(branchFrom);
}
pullRequest = gitHubClient.CreatePullRequest(gitHubRepo,
branchFrom,
branchTo,
string.Format(PullRequestNameTemplate, options.Version, options.ReleaseBranch, options.SourceBranch),
string.Format(pullRequestBody, options.ReleaseBranch, options.SourceBranch));
}
catch (Octokit.ApiValidationException e)
{
// Handles the case where source-branch (default master) and release-branch (default release) are identical, so there is no need to merge source-branch back into release-branch.
if (e.ApiError.Errors.Count > 0 && e.ApiError.Errors[0].Message.Contains("No commits between"))
{
Logger.Info(e.ApiError.Errors[0].Message);
Logger.Info("No PR will be created.");
return;
}
throw;
}
}
else
{
Logger.Info("A PR has already been opened from release branch into source branch: {0}", pullRequest.HtmlUrl);
}
var prAnnotation = string.Format(prAnnotationTemplate,
pullRequest.HtmlUrl, repoName, options.ReleaseBranch, options.SourceBranch);
BuildkiteAgent.Annotate(AnnotationLevel.Info, "release-into-source-prs", prAnnotation, true);
Logger.Info("Pull request available: {0}", pullRequest.HtmlUrl);
Logger.Info($"Successfully created PR for merging {options.ReleaseBranch} into {options.SourceBranch}.");
}
private string GetPullRequestBody(string repoName, string candidateBranch, string releaseBranch)
{
// If repoName is UnrealGDK do nothing, otherwise get the UnrealGDK-pr-url
var unrealGdkSourceBranch = repoName == "UnrealGDK" ? "" : BuildkiteAgent.GetMetadata("gdk-source-branch");
var unrealGdkPrUrl = repoName == "UnrealGDK" ? "" : BuildkiteAgent.GetMetadata($"UnrealGDK-{unrealGdkSourceBranch}-pr-url");
switch (repoName)
{
case "UnrealGDK":
return($@"#### Description
- This PR merges `{candidateBranch}` into `{releaseBranch}`.
- It was created by the [unrealgdk-release](https://buildkite.com/improbable/unrealgdk-release) Buildkite pipeline.
- Your human labour is now required to unblock the pipeline to resume the release.
#### Next Steps
- [ ] **Release Sheriff** - Delegate the tasks below.
- [ ] **Release Sheriff** - Once the Build & upload all UnrealEngine release candidates step completes, click the [run all tests](https://buildkite.com/improbable/unrealgdk-release) button.
- [ ] **Tech writers** - Review and translate [CHANGELOG.md](https://github.com/spatialos/UnrealGDK/blob/{candidateBranch}/CHANGELOG.md). Merge the translation and any edits into `{candidateBranch}`.
- [ ] **QA** - Create and complete one [component release](https://improbabletest.testrail.io/index.php?/suites/view/72) test run per Unreal Engine version you're releasing.
- [ ] **Release Sheriff** - [Check that console compatible Worker SDK DLLs are available](https://improbableio.atlassian.net/l/c/1ZDDXr9Q) for this release.
- [ ] **Release Sheriff** - If any blocking defects are discovered, merge fixes into release candidate branches.
- [ ] **Release Sheriff** - Get approving reviews on *all* release candidate PRs.
- [ ] **Release Sheriff** - When the above tasks are complete, unblock the [pipeline](https://buildkite.com/improbable/unrealgdk-release). This action will merge all release candidates into their respective release branches and create draft GitHub releases that you must then publish.
");
case "UnrealGDKExampleProject":
return($@"#### Description
- This PR merges `{candidateBranch}` into `{releaseBranch}`.
- It corresponds to {unrealGdkPrUrl}, where you can find more information about this release.");
case "UnrealGDKTestGyms":
return($@"#### Description
- This PR merges `{candidateBranch}` into `{releaseBranch}`.
- It corresponds to {unrealGdkPrUrl}, where you can find more information about this release.");
case "UnrealGDKEngineNetTest":
return($@"#### Description
- This PR merges `{candidateBranch}` into `{releaseBranch}`.
- It corresponds to {unrealGdkPrUrl}, where you can find more information about this release.");
case "TestGymBuildKite":
return($@"#### Description
- This PR merges `{candidateBranch}` into `{releaseBranch}`.
- It corresponds to {unrealGdkPrUrl}, where you can find more information about this release.");
case "UnrealEngine":
return($@"#### Description
- This PR merges `{candidateBranch}` into `{releaseBranch}`.
- It corresponds to {unrealGdkPrUrl}, where you can find more information about this release.");
default:
throw new ArgumentException($"No PR body template found for repo {repoName}");
}
}
private void FinalizeRelease(GitHubClient gitHubClient, GitClient gitClient, Repository gitHubRepo, string gitRepoName, string repoUrl)
{
// This uploads the commit hashes of the merge into release.
// When run against UnrealGDK, the UnrealEngine hashes are used to update the unreal-engine.version file to include the UnrealEngine release commits.
BuildkiteAgent.SetMetaData(options.ReleaseBranch, gitClient.GetHeadCommit().Sha);
// TODO: UNR-3615 - Fix this so it does not throw Octokit.ApiValidationException: Reference does not exist.
// Delete candidate branch.
//gitHubClient.DeleteBranch(gitHubClient.GetRepositoryFromUrl(repoUrl), options.CandidateBranch);
var release = CreateRelease(gitHubClient, gitHubRepo, gitClient, gitRepoName);
BuildkiteAgent.Annotate(AnnotationLevel.Info, "draft-releases",
string.Format(releaseAnnotationTemplate, release.HtmlUrl, gitRepoName), true);
Logger.Info("Release Successful!");
Logger.Info("Release hash: {0}", gitClient.GetHeadCommit().Sha);
Logger.Info("Draft release: {0}", release.HtmlUrl);
CreatePRFromReleaseToSource(gitHubClient, gitHubRepo, repoUrl, gitRepoName, gitClient);
}
/*
* This tool is designed to execute most of the git operations required when releasing:
* 1. Merge the RC PR into the release branch.
* 2. Draft a GitHub release using the changelog notes.
* 3. Open a PR from the release-branch into source-branch.
*/
public int Run()
{
Common.VerifySemanticVersioningFormat(options.Version);
var(repoName, pullRequestId) = ExtractPullRequestInfo(options.PullRequestUrl);
var gitHubClient = new GitHubClient(options);
var repoUrl = string.Format(Common.RepoUrlTemplate, options.GithubOrgName, repoName);
var gitHubRepo = gitHubClient.GetRepositoryFromUrl(repoUrl);
// Check if the PR has been merged already.
// If it has, log the PR URL and move on.
// This ensures the idempotence of the pipeline.
if (gitHubClient.GetMergeState(gitHubRepo, pullRequestId) == GitHubClient.MergeState.AlreadyMerged)
{
Logger.Info("Candidate branch has already merged into release branch. No merge operation will be attempted.");
// Check if a PR has already been opened from release branch into source branch.
// If it has, log the PR URL and move on.
// This ensures the idempotence of the pipeline.
var githubOrg = options.GithubOrgName;
var branchFrom = $"{options.CandidateBranch}-cleanup";
var branchTo = options.SourceBranch;
if (!gitHubClient.TryGetPullRequest(gitHubRepo, githubOrg, branchFrom, branchTo, out var pullRequest))
{
try
{
using (var gitClient = GitClient.FromRemote(repoUrl))
{
gitClient.CheckoutRemoteBranch(options.ReleaseBranch);
gitClient.ForcePush(branchFrom);
}
pullRequest = gitHubClient.CreatePullRequest(gitHubRepo,
branchFrom,
branchTo,
string.Format(PullRequestNameTemplate, options.Version, options.ReleaseBranch, options.SourceBranch),
string.Format(pullRequestBody, options.ReleaseBranch, options.SourceBranch));
}
catch (Octokit.ApiValidationException e)
{
// Handles the case where source-branch (default master) and release-branch (default release) are identical, so there is no need to merge source-branch back into release-branch.
if (e.ApiError.Errors.Count > 0 && e.ApiError.Errors[0].Message.Contains("No commits between"))
{
Logger.Info(e.ApiError.Errors[0].Message);
Logger.Info("No PR will be created.");
return(0);
}
throw;
}
}
else
{
Logger.Info("A PR has already been opened from release branch into source branch: {0}", pullRequest.HtmlUrl);
}
var prAnnotation = string.Format(prAnnotationTemplate,
pullRequest.HtmlUrl, repoName, options.ReleaseBranch, options.SourceBranch);
BuildkiteAgent.Annotate(AnnotationLevel.Info, "release-into-source-prs", prAnnotation, true);
Logger.Info("Pull request available: {0}", pullRequest.HtmlUrl);
Logger.Info("Successfully created PR from release branch into source branch.");
Logger.Info("Merge hash: {0}", pullRequest.MergeCommitSha);
return(0);
}
var remoteUrl = string.Format(Common.RepoUrlTemplate, options.GithubOrgName, repoName);
try
{
// 1. Clones the source repo.
using (var gitClient = GitClient.FromRemote(remoteUrl))
{
// 2. Checks out the candidate branch, which defaults to 4.xx-SpatialOSUnrealGDK-x.y.z-rc in UnrealEngine and x.y.z-rc in all other repos.
gitClient.CheckoutRemoteBranch(options.CandidateBranch);
// 3. Makes repo-specific changes for prepping the release (e.g. updating version files, formatting the CHANGELOG).
switch (repoName)
{
case "UnrealEngine":
UpdateVersionFile(gitClient, options.Version, UnrealGDKVersionFile);
UpdateVersionFile(gitClient, options.Version, UnrealGDKExampleProjectVersionFile);
break;
case "UnrealGDK":
UpdateChangeLog(ChangeLogFilename, options, gitClient);
var releaseHashes = options.EngineVersions.Split(" ")
.Select(version => $"{version.Trim()}-release")
.Select(BuildkiteAgent.GetMetadata)
.Select(hash => $"UnrealEngine-{hash}")
.ToList();
UpdateUnrealEngineVersionFile(releaseHashes, gitClient);
break;
case "UnrealGDKExampleProject":
UpdateVersionFile(gitClient, options.Version, UnrealGDKVersionFile);
break;
case "UnrealGDKTestGyms":
UpdateVersionFile(gitClient, options.Version, UnrealGDKVersionFile);
break;
case "UnrealGDKEngineNetTest":
UpdateVersionFile(gitClient, options.Version, UnrealGDKVersionFile);
break;
case "TestGymBuildKite":
UpdateVersionFile(gitClient, options.Version, UnrealGDKVersionFile);
break;
}
// 4. Commit changes and push them to a remote candidate branch.
gitClient.Commit(string.Format(CandidateCommitMessageTemplate, options.Version));
gitClient.ForcePush(options.CandidateBranch);
}
// Since we've pushed changes, we need to wait for all checks to pass before attempting to merge it.
var startTime = DateTime.Now;
while (true)
{
if (DateTime.Now.Subtract(startTime) > TimeSpan.FromHours(12))
{
throw new Exception($"Exceeded timeout waiting for PR to be mergeable: {options.PullRequestUrl}");
}
if (gitHubClient.GetMergeState(gitHubRepo, pullRequestId) == GitHubClient.MergeState.ReadyToMerge)
{
Logger.Info($"{options.PullRequestUrl} is mergeable. Attempting to merge.");
break;
}
Logger.Info($"{options.PullRequestUrl} is not in a mergeable state, will query mergeability again in one minute.");
Thread.Sleep(TimeSpan.FromMinutes(1));
}
PullRequestMerge mergeResult = null;
while (true)
{
// Merge into release
try
{
mergeResult = gitHubClient.MergePullRequest(gitHubRepo, pullRequestId, PullRequestMergeMethod.Merge);
}
catch (Octokit.PullRequestNotMergeableException e) {} // Will be covered by log below
if (DateTime.Now.Subtract(startTime) > TimeSpan.FromHours(12))
{
throw new Exception($"Exceeded timeout waiting for PR to be mergeable: {options.PullRequestUrl}");
}
if (!mergeResult.Merged)
{
Logger.Info($"Was unable to merge pull request at: {options.PullRequestUrl}. Received error: {mergeResult.Message}");
Logger.Info($"{options.PullRequestUrl} is not in a mergeable state, will query mergeability again in one minute.");
Thread.Sleep(TimeSpan.FromMinutes(1));
}
else
{
break;
}
}
Logger.Info($"{options.PullRequestUrl} had been merged.");
// This uploads the commit hashes of the merge into release.
// When run against UnrealGDK, the UnrealEngine hashes are used to update the unreal-engine.version file to include the UnrealEngine release commits.
BuildkiteAgent.SetMetaData(options.ReleaseBranch, mergeResult.Sha);
//TODO: UNR-3615 - Fix this so it does not throw Octokit.ApiValidationException: Reference does not exist.
// Delete candidate branch.
//gitHubClient.DeleteBranch(gitHubClient.GetRepositoryFromUrl(repoUrl), options.CandidateBranch);
using (var gitClient = GitClient.FromRemote(repoUrl))
{
// Create GitHub release in the repo
gitClient.Fetch();
gitClient.CheckoutRemoteBranch(options.ReleaseBranch);
var release = CreateRelease(gitHubClient, gitHubRepo, gitClient, repoName);
BuildkiteAgent.Annotate(AnnotationLevel.Info, "draft-releases",
string.Format(releaseAnnotationTemplate, release.HtmlUrl, repoName), true);
Logger.Info("Release Successful!");
Logger.Info("Release hash: {0}", gitClient.GetHeadCommit().Sha);
Logger.Info("Draft release: {0}", release.HtmlUrl);
}
// Check if a PR has already been opened from release branch into source branch.
// If it has, log the PR URL and move on.
// This ensures the idempotence of the pipeline.
var githubOrg = options.GithubOrgName;
var branchFrom = $"{options.CandidateBranch}-cleanup";
var branchTo = options.SourceBranch;
if (!gitHubClient.TryGetPullRequest(gitHubRepo, githubOrg, branchFrom, branchTo, out var pullRequest))
{
try
{
using (var gitClient = GitClient.FromRemote(repoUrl))
{
gitClient.CheckoutRemoteBranch(options.ReleaseBranch);
gitClient.ForcePush(branchFrom);
}
pullRequest = gitHubClient.CreatePullRequest(gitHubRepo,
branchFrom,
branchTo,
string.Format(PullRequestNameTemplate, options.Version, options.ReleaseBranch, options.SourceBranch),
string.Format(pullRequestBody, options.ReleaseBranch, options.SourceBranch));
}
catch (Octokit.ApiValidationException e)
{
// Handles the case where source-branch (default master) and release-branch (default release) are identical, so there is no need to merge source-branch back into release-branch.
if (e.ApiError.Errors.Count > 0 && e.ApiError.Errors[0].Message.Contains("No commits between"))
{
Logger.Info(e.ApiError.Errors[0].Message);
Logger.Info("No PR will be created.");
return(0);
}
throw;
}
}
else
{
Logger.Info("A PR has already been opened from release branch into source branch: {0}", pullRequest.HtmlUrl);
}
var prAnnotation = string.Format(prAnnotationTemplate,
pullRequest.HtmlUrl, repoName, options.ReleaseBranch, options.SourceBranch);
BuildkiteAgent.Annotate(AnnotationLevel.Info, "release-into-source-prs", prAnnotation, true);
Logger.Info("Pull request available: {0}", pullRequest.HtmlUrl);
Logger.Info($"Successfully created PR for merging {options.ReleaseBranch} into {options.SourceBranch}.");
}
catch (Exception e)
{
Logger.Error(e, $"ERROR: Unable to merge {options.CandidateBranch} into {options.ReleaseBranch} and/or clean up by merging {options.ReleaseBranch} into {options.SourceBranch}. Error: {0}", e);
return(1);
}
return(0);
}
/*
* This tool is designed to be used with a robot Github account. When we prep a release:
* 1. Clones the source repo.
* 2. Checks out the source branch, which defaults to 4.xx-SpatialOSUnrealGDK in UnrealEngine and master in all other repos.
* 3. Makes repo-specific changes for prepping the release (e.g. updating version files, formatting the CHANGELOG).
* 4. Commit changes and push them to a remote candidate branch.
* 5. IF the release branch does not exist, creates it from the source branch and pushes it to the remote.
* 6. Opens a PR for merging the RC branch into the release branch.
*/
public int Run()
{
Common.VerifySemanticVersioningFormat(options.Version);
var gitRepoName = options.GitRepoName;
var remoteUrl = Common.makeRepoUrl(options.GithubOrgName, gitRepoName);
try
{
// 1. Clones the source repo.
using (var gitClient = GitClient.FromRemote(remoteUrl))
{
if (!gitClient.LocalBranchExists($"origin/{options.CandidateBranch}"))
{
// 2. Checks out the source branch, which defaults to 4.xx-SpatialOSUnrealGDK in UnrealEngine and master in all other repos.
gitClient.CheckoutRemoteBranch(options.SourceBranch);
// 3. Makes repo-specific changes for prepping the release (e.g. updating version files, formatting the CHANGELOG).
// UpdateVersionFilesWithEngine returns a bool to indicate if anything has changed, we could use this to only push when
// version files etc have changed which may be reasonable but might have side-effects as our github ci interactions are fragile
Common.UpdateVersionFilesWithEngine(gitClient, gitRepoName, options.Version, options.EngineVersions, Logger, "-rc");
// 4. Commit changes and push them to a remote candidate branch.
gitClient.Commit(string.Format(CandidateCommitMessageTemplate, options.Version));
gitClient.ForcePush(options.CandidateBranch);
Logger.Info($"Updated branch '{options.CandidateBranch}' for the release candidate release.");
}
// 5. IF the release branch does not exist, creates it from the source branch and pushes it to the remote.
if (!gitClient.LocalBranchExists($"origin/{options.ReleaseBranch}"))
{
Logger.Info("The release branch {0} does not exist! Going ahead with the PR-less release process.", options.ReleaseBranch);
Logger.Info("Release candidate head hash: {0}", gitClient.GetHeadCommit().Sha);
var branchAnnotation = string.Format(branchAnnotationTemplate,
$"https://github.com/{options.GithubOrgName}/{options.GitRepoName}/tree/{options.CandidateBranch}", options.GitRepoName, options.ReleaseBranch);
BuildkiteAgent.Annotate(AnnotationLevel.Info, "candidate-into-release-prs", branchAnnotation, true);
return(0);
}
// 6. Opens a PR for merging the RC branch into the release branch.
var gitHubClient = new GitHubClient(options);
var gitHubRepo = gitHubClient.GetRepositoryFromUrl(remoteUrl);
var githubOrg = options.GithubOrgName;
var branchFrom = options.CandidateBranch;
var branchTo = options.ReleaseBranch;
// Only open a PR if one does not exist yet.
if (!gitHubClient.TryGetPullRequest(gitHubRepo, githubOrg, branchFrom, branchTo, out var pullRequest))
{
Logger.Info("No PR exists. Attempting to open a new PR");
pullRequest = gitHubClient.CreatePullRequest(gitHubRepo,
branchFrom,
branchTo,
string.Format(PullRequestTemplate, options.Version),
GetPullRequestBody(options.GitRepoName, options.CandidateBranch, options.ReleaseBranch));
}
BuildkiteAgent.SetMetaData($"{options.GitRepoName}-{options.SourceBranch}-pr-url", pullRequest.HtmlUrl);
var prAnnotation = string.Format(prAnnotationTemplate,
pullRequest.HtmlUrl, options.GitRepoName, options.CandidateBranch, options.ReleaseBranch);
BuildkiteAgent.Annotate(AnnotationLevel.Info, "candidate-into-release-prs", prAnnotation, true);
Logger.Info("Pull request available: {0}", pullRequest.HtmlUrl);
Logger.Info("Successfully created pull request for the release!");
Logger.Info("PR head hash: {0}", gitClient.GetHeadCommit().Sha);
}
}
catch (Exception e)
{
Logger.Error(e, "ERROR: Unable to prep release candidate branch. Error: {0}", e);
return(1);
}
return(0);
}
/*
* This tool is designed to be used with a robot Github account. When we prep a release:
* 1. Clones the source repo.
* 2. Checks out the source branch, which defaults to 4.xx-SpatialOSUnrealGDK in UnrealEngine and master in all other repos.
* 3. Makes repo-specific changes for prepping the release (e.g. updating version files, formatting the CHANGELOG).
* 4. Commit changes and push them to a remote candidate branch.
* 5. IF the release branch does not exist, creates it from the source branch and pushes it to the remote.
* 6. Opens a PR for merging the RC branch into the release branch.
*/
public int Run()
{
Common.VerifySemanticVersioningFormat(options.Version);
var remoteUrl = string.Format(Common.RepoUrlTemplate, options.GithubOrgName, options.GitRepoName);
try
{
var gitHubClient = new GitHubClient(options);
// 1. Clones the source repo.
using (var gitClient = GitClient.FromRemote(remoteUrl))
{
if (!gitClient.LocalBranchExists($"origin/{options.CandidateBranch}"))
{
// 2. Checks out the source branch, which defaults to 4.xx-SpatialOSUnrealGDK in UnrealEngine and master in all other repos.
gitClient.CheckoutRemoteBranch(options.SourceBranch);
// 3. Makes repo-specific changes for prepping the release (e.g. updating version files, formatting the CHANGELOG).
switch (options.GitRepoName)
{
case "UnrealGDK":
UpdateChangeLog(ChangeLogFilename, options, gitClient);
UpdatePluginFile(pluginFileName, gitClient);
var engineCandidateBranches = options.EngineVersions.Split(" ")
.Select(engineVersion => $"HEAD {engineVersion.Trim()}-{options.Version}-rc")
.ToList();
UpdateUnrealEngineVersionFile(engineCandidateBranches, gitClient);
break;
case "UnrealEngine":
UpdateVersionFile(gitClient, $"{options.Version}-rc", UnrealGDKVersionFile);
UpdateVersionFile(gitClient, $"{options.Version}-rc", UnrealGDKExampleProjectVersionFile);
break;
case "UnrealGDKExampleProject":
UpdateVersionFile(gitClient, $"{options.Version}-rc", UnrealGDKVersionFile);
break;
case "UnrealGDKTestGyms":
UpdateVersionFile(gitClient, $"{options.Version}-rc", UnrealGDKVersionFile);
break;
case "UnrealGDKEngineNetTest":
UpdateVersionFile(gitClient, $"{options.Version}-rc", UnrealGDKVersionFile);
break;
case "TestGymBuildKite":
UpdateVersionFile(gitClient, $"{options.Version}-rc", UnrealGDKVersionFile);
break;
}
// 4. Commit changes and push them to a remote candidate branch.
gitClient.Commit(string.Format(CandidateCommitMessageTemplate, options.Version));
gitClient.ForcePush(options.CandidateBranch);
}
// 5. IF the release branch does not exist, creates it from the source branch and pushes it to the remote.
if (!gitClient.LocalBranchExists($"origin/{options.ReleaseBranch}"))
{
gitClient.Fetch();
gitClient.CheckoutRemoteBranch(options.SourceBranch);
gitClient.ForcePush(options.ReleaseBranch);
}
// 6. Opens a PR for merging the RC branch into the release branch.
var gitHubRepo = gitHubClient.GetRepositoryFromUrl(remoteUrl);
var githubOrg = options.GithubOrgName;
var branchFrom = options.CandidateBranch;
var branchTo = options.ReleaseBranch;
// Only open a PR if one does not exist yet.
if (!gitHubClient.TryGetPullRequest(gitHubRepo, githubOrg, branchFrom, branchTo, out var pullRequest))
{
Logger.Info("No PR exists. Attempting to open a new PR");
pullRequest = gitHubClient.CreatePullRequest(gitHubRepo,
branchFrom,
branchTo,
string.Format(PullRequestTemplate, options.Version),
GetPullRequestBody(options.GitRepoName, options.CandidateBranch, options.ReleaseBranch));
}
BuildkiteAgent.SetMetaData($"{options.GitRepoName}-{options.SourceBranch}-pr-url", pullRequest.HtmlUrl);
var prAnnotation = string.Format(prAnnotationTemplate,
pullRequest.HtmlUrl, options.GitRepoName, options.CandidateBranch, options.ReleaseBranch);
BuildkiteAgent.Annotate(AnnotationLevel.Info, "candidate-into-release-prs", prAnnotation, true);
Logger.Info("Pull request available: {0}", pullRequest.HtmlUrl);
Logger.Info("Successfully created pull request for the release!");
Logger.Info("PR head hash: {0}", gitClient.GetHeadCommit().Sha);
}
}
catch (Exception e)
{
Logger.Error(e, "ERROR: Unable to prep release candidate branch. Error: {0}", e);
return(1);
}
return(0);
}
/*
* This tool is designed to execute most of the git operations required when releasing:
* 1. Merge the RC PR into the release branch.
* 2. Draft a GitHub release using the changelog notes.
* 3. Open a PR from the release-branch into source-branch.
*/
public int Run()
{
Common.VerifySemanticVersioningFormat(options.Version);
var(repoName, pullRequestId) = Common.ExtractPullRequestInfo(options.PullRequestUrl);
var gitHubClient = new GitHubClient(options);
var repoUrl = string.Format(Common.RepoUrlTemplate, options.GithubOrgName, repoName);
var gitHubRepo = gitHubClient.GetRepositoryFromUrl(repoUrl);
// Check if the PR has been merged already.
// If it has, log the PR URL and move on.
// This ensures the idempotence of the pipeline.
if (gitHubClient.GetMergeState(gitHubRepo, pullRequestId) == GitHubClient.MergeState.AlreadyMerged)
{
Logger.Info("Candidate branch has already merged into release branch. No merge operation will be attempted.");
// null for GitClient will let it create one if necessary
CreatePRFromReleaseToSource(gitHubClient, gitHubRepo, repoUrl, repoName, null);
return(0);
}
var remoteUrl = string.Format(Common.RepoUrlTemplate, options.GithubOrgName, repoName);
try
{
// Only do something for the UnrealGDK, since the other repos should have been prepped by the PrepFullReleaseCommand.
if (repoName == "UnrealGDK")
{
// 1. Clones the source repo.
using (var gitClient = GitClient.FromRemote(remoteUrl))
{
// 2. Checks out the candidate branch, which defaults to 4.xx-SpatialOSUnrealGDK-x.y.z-rc in UnrealEngine and x.y.z-rc in all other repos.
gitClient.CheckoutRemoteBranch(options.CandidateBranch);
// 3. Makes repo-specific changes for prepping the release (e.g. updating version files, formatting the CHANGELOG).
Common.UpdateChangeLog(ChangeLogFilename, options.Version, gitClient, ChangeLogReleaseHeadingTemplate);
var releaseHashes = options.EngineVersions.Split(" ")
.Select(version => $"{version.Trim()}-release")
.Select(BuildkiteAgent.GetMetadata)
.Select(hash => $"UnrealEngine-{hash}")
.ToList();
UpdateUnrealEngineVersionFile(releaseHashes, gitClient);
// 4. Commit changes and push them to a remote candidate branch.
gitClient.Commit(string.Format(CandidateCommitMessageTemplate, options.Version));
gitClient.ForcePush(options.CandidateBranch);
}
}
// Since we've (maybe) pushed changes, we need to wait for all checks to pass before attempting to merge it.
var startTime = DateTime.Now;
while (true)
{
if (DateTime.Now.Subtract(startTime) > TimeSpan.FromHours(12))
{
throw new Exception($"Exceeded timeout waiting for PR to be mergeable: {options.PullRequestUrl}");
}
if (gitHubClient.GetMergeState(gitHubRepo, pullRequestId) == GitHubClient.MergeState.ReadyToMerge)
{
Logger.Info($"{options.PullRequestUrl} is mergeable. Attempting to merge.");
break;
}
Logger.Info($"{options.PullRequestUrl} is not in a mergeable state, will query mergeability again in one minute.");
Thread.Sleep(TimeSpan.FromMinutes(1));
}
PullRequestMerge mergeResult = null;
while (true)
{
// Merge into release
try
{
mergeResult = gitHubClient.MergePullRequest(gitHubRepo, pullRequestId, PullRequestMergeMethod.Merge, $"Merging final GDK for Unreal {options.Version} release");
}
catch (Octokit.PullRequestNotMergeableException e) {
Logger.Info($"Was unable to merge pull request at: {options.PullRequestUrl}. Received error: {e.Message}");
}
if (DateTime.Now.Subtract(startTime) > TimeSpan.FromHours(12))
{
throw new Exception($"Exceeded timeout waiting for PR to be mergeable: {options.PullRequestUrl}");
}
if (!mergeResult.Merged)
{
Logger.Info($"{options.PullRequestUrl} is not in a mergeable state, will query mergeability again in one minute.");
Thread.Sleep(TimeSpan.FromMinutes(1));
}
else
{
break;
}
}
Logger.Info($"{options.PullRequestUrl} had been merged.");
// This uploads the commit hashes of the merge into release.
// When run against UnrealGDK, the UnrealEngine hashes are used to update the unreal-engine.version file to include the UnrealEngine release commits.
BuildkiteAgent.SetMetaData(options.ReleaseBranch, mergeResult.Sha);
// TODO: UNR-3615 - Fix this so it does not throw Octokit.ApiValidationException: Reference does not exist.
// Delete candidate branch.
//gitHubClient.DeleteBranch(gitHubClient.GetRepositoryFromUrl(repoUrl), options.CandidateBranch);
using (var gitClient = GitClient.FromRemote(repoUrl))
{
// Create GitHub release in the repo
gitClient.Fetch();
gitClient.CheckoutRemoteBranch(options.ReleaseBranch);
var release = CreateRelease(gitHubClient, gitHubRepo, gitClient, repoName);
BuildkiteAgent.Annotate(AnnotationLevel.Info, "draft-releases",
string.Format(releaseAnnotationTemplate, release.HtmlUrl, repoName), true);
Logger.Info("Release Successful!");
Logger.Info("Release hash: {0}", gitClient.GetHeadCommit().Sha);
Logger.Info("Draft release: {0}", release.HtmlUrl);
CreatePRFromReleaseToSource(gitHubClient, gitHubRepo, repoUrl, repoName, gitClient);
}
}
catch (Exception e)
{
Logger.Error(e, $"ERROR: Unable to merge {options.CandidateBranch} into {options.ReleaseBranch} and/or clean up by merging {options.ReleaseBranch} into {options.SourceBranch}. Error: {0}", e.Message);
return(1);
}
return(0);
}