mirror of https://github.com/knative/docs.git
107 lines
2.7 KiB
Go
107 lines
2.7 KiB
Go
/*
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Copyright 2018 The Knative Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"context"
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"encoding/json"
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"flag"
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"fmt"
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ghclient "github.com/google/go-github/github"
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"github.com/knative/eventing/pkg/event"
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"golang.org/x/oauth2"
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"gopkg.in/go-playground/webhooks.v3/github"
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"log"
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"net/http"
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"os"
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"strings"
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)
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const (
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// Environment variable containing json credentials
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envSecret = "GITHUB_SECRET"
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// this is what we tack onto each PR title if not there already
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titleSuffix = "looks pretty legit"
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)
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// GithubHandler holds necessary objects for communicating with the Github.
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type GithubHandler struct {
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client *ghclient.Client
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ctx context.Context
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}
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type GithubSecrets struct {
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AccessToken string `json:"accessToken"`
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SecretToken string `json:"secretToken"`
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}
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func (h *GithubHandler) newPullRequestPayload(ctx context.Context, pl *github.PullRequestPayload) {
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title := pl.PullRequest.Title
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log.Printf("GOT PR with Title: %q", title)
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// Check the title and if it contains 'looks pretty legit' leave it alone
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if strings.Contains(title, titleSuffix) {
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// already modified, leave it alone.
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return
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}
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newTitle := fmt.Sprintf("%s (%s)", title, titleSuffix)
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updatedPR := ghclient.PullRequest{
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Title: &newTitle,
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}
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newPR, response, err := h.client.PullRequests.Edit(h.ctx,
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pl.Repository.Owner.Login, pl.Repository.Name, int(pl.Number), &updatedPR)
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if err != nil {
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log.Printf("Failed to update PR: %s\n%s", err, response)
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return
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}
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if newPR.Title != nil {
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log.Printf("New PR Title: %q", *newPR.Title)
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} else {
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log.Printf("New PR title is nil")
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}
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}
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func main() {
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flag.Parse()
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githubSecrets := os.Getenv(envSecret)
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var credentials GithubSecrets
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err := json.Unmarshal([]byte(githubSecrets), &credentials)
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if err != nil {
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log.Fatalf("Failed to unmarshal credentials: %s", err)
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return
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}
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// Set up the auth for being able to talk to Github.
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ctx := context.Background()
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ts := oauth2.StaticTokenSource(
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&oauth2.Token{AccessToken: credentials.AccessToken},
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)
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tc := oauth2.NewClient(ctx, ts)
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client := ghclient.NewClient(tc)
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h := &GithubHandler{
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client: client,
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ctx: ctx,
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}
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log.Fatal(http.ListenAndServe(":8080", event.Handler(h.newPullRequestPayload)))
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}
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