XpandPosh

1.2.9

Cmdlets/src/XpandPosh.Cmdlets/PublishGitHubRelease/New-GithubReleaseNotes.cs

                                using System;

using System.Linq;

using System.Management.Automation;

using System.Reactive.Linq;

using System.Reactive.Threading.Tasks;

using System.Text.RegularExpressions;

using System.Threading.Tasks;

using XpandPosh.Cmdlets.GetGitHubCommitIssue;

using XpandPosh.CmdLets;

namespace XpandPosh.Cmdlets.PublishGitHubRelease{

    [CmdletBinding(SupportsShouldProcess = true)]

    [Cmdlet(VerbsCommon.New, "GithubReleaseNotes",SupportsShouldProcess = true)]

    [OutputType(typeof(string))]

    public class NewGitHubReleaseNotes : XpandCmdlet{

        [Parameter()]

        public IReleaseNotesTemplate ReleaseNotesTemplate{ get; set; } = Cmdlets.PublishGitHubRelease.ReleaseNotesTemplate.Default;

        [Parameter(Mandatory = true)]

        public ICommitIssues[] CommitIssues{ get; set; }

        protected override  Task ProcessRecordAsync(){

            return Observable.Return(string.Join(Environment.NewLine,ReleaseNotesTemplate.Parts

                    .Select(GetBody)

                    .Where(s => !string.IsNullOrWhiteSpace(s))))

                .WriteObject(this)

                .ToTask();

        }

        private  string GetBody( ITemplatePart templatePart){

            var body = string.Join(Environment.NewLine, CommitIssues

                .Where(tuple => templatePart.Labels.Intersect(tuple.Issues.SelectMany(issue => issue.Labels).Select(label => label.Name)).Any())

                .Select(tuple => {

                    var commitMessage = Regex.Replace(tuple.GitHubCommit.Commit.Message, @"(#\d*)", "", RegexOptions.IgnoreCase);

                    var numbers = string.Join(" ",tuple.Issues.Select(issue => $"#[{issue.Number}]({tuple.Repository2.HtmlUrl}/issues/{issue.Number})"));

                    return $"1. {numbers} {commitMessage}";

                }));

            return !string.IsNullOrWhiteSpace(body) ? string.Join(Environment.NewLine, templatePart.Header, body, templatePart.Footer) : null;

        }

    }

}