private static async Task <long> GetLatestPullRequestIterationAsync(SubscriptionEvent <PullRequestEvent> pullRequestInfo, string accessToken)
{
var url = $"{pullRequestInfo.ResourceContainers.Account.BaseUrl}" +
$"/_apis/git/repositories/{pullRequestInfo.Resource.Repository.Id}" +
$"/pullRequests/{pullRequestInfo.Resource.PullRequestId}/iterations?api-version=4.1";
using (var httpClient = new HttpClient())
{
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
var resp = await httpClient.GetStringAsync(url);
var data = JsonConvert.DeserializeObject <PullRequestIterations>(resp);
return(data
.Value
.Select(v => v.Id)
.OrderByDescending(v => v)
.FirstOrDefault());
}
}
private static async Task <IEnumerable <AssociatedWorkItem> > GetPullRequestWorkItemsAsync(
string accessToken,
SubscriptionEvent <PullRequestEvent> pullRequestInfo,
List <string> fieldsRequired)
{
fieldsRequired.Add("System.WorkItemType");
var url = pullRequestInfo.ResourceContainers.Account.BaseUrl +
$"_apis/git/repositories/{pullRequestInfo.Resource.Repository.Id}" +
$"/pullRequests/{pullRequestInfo.Resource.PullRequestId}/workitems?api-version=4.1";
using (var httpClient = new HttpClient())
{
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
var resp = await httpClient.GetAsync(url).ConfigureAwait(false);
if (!resp.IsSuccessStatusCode)
{
return(new List <AssociatedWorkItem>());
}
var json = await resp.Content.ReadAsStringAsync();
var workItemIds = JsonConvert.DeserializeObject <Response <AssociatedWorkItem> >(json).Value.Select(v => v.Id);
var detailUrl = pullRequestInfo.ResourceContainers.Account.BaseUrl +
$"_apis/wit/workItems" +
$"?ids={Uri.EscapeDataString(string.Join(",", workItemIds))}" +
$"&fields={Uri.EscapeDataString(string.Join(",", fieldsRequired))}";
resp = await httpClient.GetAsync(detailUrl).ConfigureAwait(false);
json = await resp.Content.ReadAsStringAsync();
if (!resp.IsSuccessStatusCode)
{
return(new List <AssociatedWorkItem>());
}
return(JsonConvert.DeserializeObject <Response <AssociatedWorkItem> >(json).Value);
}
}
public static async Task UpdateStatusAsync(
[QueueTrigger("update-pr-status")] SubscriptionEvent <PullRequestEvent> pullRequestInfo,
[Table("Projects")] CloudTable projects,
[Table("Rules")] CloudTable rulesTable)
{
var partitionKey = new Uri(pullRequestInfo.ResourceContainers.Account.BaseUrl).Authority;
var rowKey = pullRequestInfo.ResourceContainers.Project.Id;
var project = projects.CreateQuery <ProjectEntity>()
.Where(p => p.PartitionKey == partitionKey && p.RowKey == rowKey)
.ToList()
.First();
await Helpers.UpdateAccessToken(projects, project.PartitionKey, project.RowKey).ConfigureAwait(false);
var accessToken = project.AccessToken;
var pr = pullRequestInfo.Resource;
if (pr.Reviewers.Count == 0)
{
// don't set a status if there are no reviewers
return;
}
var percentReviewed = (pr.Reviewers.Count(r => r.Vote != 0) / (float)pr.Reviewers.Count) * 100.0f;
var vote = pr.Reviewers.Sum(r => r.Vote);
var reviewed = percentReviewed >= 100;
var statusUrl = pullRequestInfo.ResourceContainers.Account.BaseUrl +
$"{pr.Repository.Project.Id}/_apis/git/repositories/{pr.Repository.Id}" +
$"/pullRequests/{pr.PullRequestId}/statuses?api-version=4.1-preview";
var latestIteration = await GetLatestPullRequestIterationAsync(pullRequestInfo, accessToken);
var description = $"Waiting for {pr.Reviewers.Count(r => r.Vote == 0)} reviewers";
var state = PullRequestState.Pending;
if (reviewed)
{
if (vote > 0)
{
state = PullRequestState.Succeeded;
description = "All reviews approved";
}
else
{
state = PullRequestState.Error;
description = "Reviews completed with rejections ";
}
}
var update = new PullRequestStatusUpdate
{
State = state,
Context = new Context
{
Name = "review-check",
Genre = "vsts-pullrequest-bot"
},
TargetUrl = pr.Links.Web.Href,
Description = description,
IterationId = latestIteration
};
using (var httpClient = new HttpClient())
{
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
var resp = await httpClient.PostAsJsonAsync(statusUrl, update).ConfigureAwait(false);
resp.EnsureSuccessStatusCode();
}
var rules = rulesTable.CreateQuery <RuleEntity>()
.Where(r => r.PartitionKey == rowKey)
.ToList()
.GroupBy(r => r.RuleType);
foreach (var ruleGroup in rules)
{
switch (ruleGroup.Key)
{
case RuleType.WorkItemTaskUpdate:
var ruleUpdates = ruleGroup
.Select(rg => new WorkItemUpdate
{
Op = "add",
Path = rg.Key,
Value = rg.Value
});
foreach (var workItem in (await GetPullRequestWorkItemsAsync(
accessToken,
pullRequestInfo,
ruleUpdates.Select(ru => ru.Path).ToList()))
.Where(wi => wi.Fields["System.WorkItemType"] == "Task"))
{
ruleUpdates = ruleUpdates
.Where(ru => workItem.Fields[ru.Path] != ru.Value)
.Select(ru => new WorkItemUpdate
{
Op = ru.Op,
Path = $"/fields/{ru.Path}",
Value = ru.Value
});
if (!ruleUpdates.Any())
{
return;
}
var url = pullRequestInfo.ResourceContainers.Account.BaseUrl +
$"_apis/wit/workitems/{workItem.Id}?api-version=4.1";
using (var httpClient = new HttpClient())
{
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
var req = new HttpRequestMessage(new HttpMethod("PATCH"), url);
req.Content = new StringContent(JsonConvert.SerializeObject(ruleUpdates));
req.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json-patch+json");
var resp = await httpClient.SendAsync(req).ConfigureAwait(false);
var json = await resp.Content.ReadAsStringAsync();
}
}
break;
}
}
}