// Processes a generic POST-RECEIVE hook and
// attempts to trigger a build.
func Hook(w http.ResponseWriter, r *http.Request) error {
// if this is a pull request route
// to a different handler
if r.Header.Get("X-Github-Event") == "pull_request" {
PullRequestHook(w, r)
return nil
}
// get the payload of the message
// this should contain a json representation of the
// repository and commit details
payload := r.FormValue("payload")
// parse the github Hook payload
hook, err := github.ParseHook([]byte(payload))
if err != nil {
println("could not parse hook")
return RenderText(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
}
// make sure this is being triggered because of a commit
// and not something like a tag deletion or whatever
if hook.IsTag() || hook.IsGithubPages() ||
hook.IsHead() == false || hook.IsDeleted() {
return RenderText(w, http.StatusText(http.StatusOK), http.StatusOK)
}
// get the repo from the URL
repoId := r.FormValue("id")
// get the repo from the database, return error if not found
repo, err := database.GetRepoSlug(repoId)
if err != nil {
return RenderText(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
}
// Get the user that owns the repository
user, err := database.GetUser(repo.UserID)
if err != nil {
return RenderText(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
}
// Verify that the commit doesn't already exist.
// We should never build the same commit twice.
_, err = database.GetCommitHash(hook.Head.Id, repo.ID)
if err != nil && err != sql.ErrNoRows {
println("commit already exists")
return RenderText(w, http.StatusText(http.StatusBadGateway), http.StatusBadGateway)
}
// we really only need:
// * repo owner
// * repo name
// * repo host (github)
// * commit hash
// * commit timestamp
// * commit branch
// * commit message
// * commit author
// * pull request
// once we have this data we could just send directly to the queue
// and let it handle everything else
commit := &Commit{}
commit.RepoID = repo.ID
commit.Branch = hook.Branch()
commit.Hash = hook.Head.Id
commit.Status = "Pending"
commit.Created = time.Now().UTC()
// extract the author and message from the commit
// this is kind of experimental, since I don't know
// what I'm doing here.
if hook.Head != nil && hook.Head.Author != nil {
commit.Message = hook.Head.Message
commit.Timestamp = hook.Head.Timestamp
commit.SetAuthor(hook.Head.Author.Email)
} else if hook.Commits != nil && len(hook.Commits) > 0 && hook.Commits[0].Author != nil {
commit.Message = hook.Commits[0].Message
commit.Timestamp = hook.Commits[0].Timestamp
commit.SetAuthor(hook.Commits[0].Author.Email)
}
// get the drone.yml file from GitHub
client := github.New(user.GithubToken)
content, err := client.Contents.FindRef(repo.Owner, repo.Name, ".drone.yml", commit.Hash)
if err != nil {
msg := "No .drone.yml was found in this repository. You need to add one.\n"
if err := saveFailedBuild(commit, msg); err != nil {
return RenderText(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
}
return RenderText(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
}
// decode the content. Note: Not sure this will ever happen...it basically means a GitHub API issue
raw, err := content.DecodeContent()
if err != nil {
msg := "Could not decode the yaml from GitHub. Check that your .drone.yml is a valid yaml file.\n"
if err := saveFailedBuild(commit, msg); err != nil {
return RenderText(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
}
return RenderText(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
}
// parse the build script
buildscript, err := script.ParseBuild(raw)
if err != nil {
msg := "Could not parse your .drone.yml file. It needs to be a valid drone yaml file.\n\n" + err.Error() + "\n"
if err := saveFailedBuild(commit, msg); err != nil {
return RenderText(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
}
return RenderText(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
}
// save the commit to the database
if err := database.SaveCommit(commit); err != nil {
return RenderText(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
}
// save the build to the database
build := &Build{}
build.Slug = "1" // TODO
build.CommitID = commit.ID
build.Created = time.Now().UTC()
build.Status = "Pending"
if err := database.SaveBuild(build); err != nil {
return RenderText(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
}
// notify websocket that a new build is pending
//realtime.CommitPending(repo.UserID, repo.TeamID, repo.ID, commit.ID, repo.Private)
//realtime.BuildPending(repo.UserID, repo.TeamID, repo.ID, commit.ID, build.ID, repo.Private)
queue.Add(&queue.BuildTask{Repo: repo, Commit: commit, Build: build, Script: buildscript}) //Push(repo, commit, build, buildscript)
// OK!
return RenderText(w, http.StatusText(http.StatusOK), http.StatusOK)
}
func PullRequestHook(w http.ResponseWriter, r *http.Request) {
// get the payload of the message
// this should contain a json representation of the
// repository and commit details
payload := r.FormValue("payload")
println("GOT PR HOOK")
println(payload)
hook, err := github.ParsePullRequestHook([]byte(payload))
if err != nil {
RenderText(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
return
}
// ignore these
if hook.Action != "opened" && hook.Action != "synchronize" {
RenderText(w, http.StatusText(http.StatusOK), http.StatusOK)
return
}
// get the repo from the URL
repoId := r.FormValue("id")
// get the repo from the database, return error if not found
repo, err := database.GetRepoSlug(repoId)
if err != nil {
RenderText(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
return
}
// Get the user that owns the repository
user, err := database.GetUser(repo.UserID)
if err != nil {
RenderText(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
return
}
// Verify that the commit doesn't already exist.
// We should enver build the same commit twice.
_, err = database.GetCommitHash(hook.PullRequest.Head.Sha, repo.ID)
if err != nil && err != sql.ErrNoRows {
RenderText(w, http.StatusText(http.StatusBadGateway), http.StatusBadGateway)
return
}
///////////////////////////////////////////////////////
commit := &Commit{}
commit.RepoID = repo.ID
commit.Branch = hook.PullRequest.Head.Ref
commit.Hash = hook.PullRequest.Head.Sha
commit.Status = "Pending"
commit.Created = time.Now().UTC()
commit.Gravatar = hook.PullRequest.User.GravatarId
commit.PullRequest = strconv.Itoa(hook.Number)
commit.Message = hook.PullRequest.Title
// label := p.PullRequest.Head.Labe
// get the drone.yml file from GitHub
client := github.New(user.GithubToken)
content, err := client.Contents.FindRef(repo.Owner, repo.Name, ".drone.yml", commit.Hash) // TODO should this really be the hash??
if err != nil {
println(err.Error())
RenderText(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
return
}
// decode the content
raw, err := content.DecodeContent()
if err != nil {
RenderText(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
return
}
// parse the build script
buildscript, err := script.ParseBuild(raw)
if err != nil {
// TODO if the YAML is invalid we should create a commit record
// with an ERROR status so that the user knows why a build wasn't
// triggered in the system
RenderText(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
return
}
// save the commit to the database
if err := database.SaveCommit(commit); err != nil {
RenderText(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
// save the build to the database
build := &Build{}
build.Slug = "1" // TODO
build.CommitID = commit.ID
build.Created = time.Now().UTC()
build.Status = "Pending"
if err := database.SaveBuild(build); err != nil {
RenderText(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
// notify websocket that a new build is pending
// TODO we should, for consistency, just put this inside Queue.Add()
queue.Add(&queue.BuildTask{Repo: repo, Commit: commit, Build: build, Script: buildscript})
// OK!
RenderText(w, http.StatusText(http.StatusOK), http.StatusOK)
}