public static async Task <string> BuildAsync
(
string repositoryFolderPath,
string githubApiToken,
string githubApiProduct,
Func <Octokit.Issue, string> issueFormatter
)
{
GithubRepoInfo repoInfo = GithubRepoInfo.FromRepositoryFolderPath(repositoryFolderPath);
IReadOnlyCollection <string> commitMessages = GetCommitMessagesSinceLastTag(repositoryFolderPath);
IReadOnlyList <Octokit.Issue> allIssues = await GetIssuesAsync(githubApiToken, githubApiProduct, repoInfo).ConfigureAwait(false);
Dictionary <int, Octokit.Issue> issuesByNumber = allIssues.ToDictionary(i => i.Number);
IReadOnlyList <Octokit.PullRequest> allPullRequests = await GetPullRequestsAsync(githubApiToken, githubApiProduct, repoInfo).ConfigureAwait(false);
Dictionary <int, Octokit.PullRequest> pullRequestsByNumber = allPullRequests.ToDictionary(pr => pr.Number);
return(commitMessages
.SelectMany(commitMessage => ParseIssueOrPrNumbers(commitMessage))
.SelectMany(issueOrPrNumber => EnumerateIssueNumbers(issueOrPrNumber))
.Distinct()
.Select(issueNumber => issuesByNumber[issueNumber])
.Select(issueFormatter)
.Aggregate
(
new StringBuilder(),
(builder, issueText) => builder.AppendLine(issueText),
builder => builder.ToString()
));
IEnumerable <int> EnumerateIssueNumbers(int issueOrPrNumber)
=> pullRequestsByNumber.TryGetValue(issueOrPrNumber, out Octokit.PullRequest pr) ? ParseIssueOrPrNumbers(pr.Body)
: issuesByNumber.TryGetValue(issueOrPrNumber, out Octokit.Issue issue) ? new[] { issue.Number }
: Enumerable.Empty <int>();
}
private static Task <IReadOnlyList <Octokit.Issue> > GetIssuesAsync(string githubApiToken, string githubApiProduct, GithubRepoInfo repoInfo)
=> CreateGithubClient(githubApiToken, githubApiProduct)
.Issue
.GetAllForRepository
(
repoInfo.Owner,
repoInfo.Repository,
new Octokit.RepositoryIssueRequest()
{
State = Octokit.ItemStateFilter.All
}
);
