Set up Hugo release flow on CircleCI

This rewrites the release logic to use CircleCI 2.0 and its approve workflow in combination with the state of the release notes to determine what to do next.

Fixes #3779

1 files changed, 23 insertions, 8 deletions

diff --git a/releaser/github.go b/releaser/github.go
index c1e7691b8..11f617007 100644
--- a/releaser/github.go
+++ b/releaser/github.go
@@ -6,14 +6,29 @@ import (
 	"io/ioutil"
 	"net/http"
 	"os"
+	"strings"
 )
 
 var (
-	gitHubCommitsApi      = "https://api.github.com/repos/gohugoio/hugo/commits/%s"
-	gitHubRepoApi         = "https://api.github.com/repos/gohugoio/hugo"
-	gitHubContributorsApi = "https://api.github.com/repos/gohugoio/hugo/contributors"
+	gitHubCommitsAPI      = "https://api.github.com/repos/gohugoio/REPO/commits/%s"
+	gitHubRepoAPI         = "https://api.github.com/repos/gohugoio/REPO"
+	gitHubContributorsAPI = "https://api.github.com/repos/gohugoio/REPO/contributors"
 )
 
+type gitHubAPI struct {
+	commitsAPITemplate      string
+	repoAPI                 string
+	contributorsAPITemplate string
+}
+
+func newGitHubAPI(repo string) *gitHubAPI {
+	return &gitHubAPI{
+		commitsAPITemplate:      strings.Replace(gitHubCommitsAPI, "REPO", repo, -1),
+		repoAPI:                 strings.Replace(gitHubRepoAPI, "REPO", repo, -1),
+		contributorsAPITemplate: strings.Replace(gitHubContributorsAPI, "REPO", repo, -1),
+	}
+}
+
 type gitHubCommit struct {
 	Author  gitHubAuthor `json:"author"`
 	HtmlURL string       `json:"html_url"`
@@ -42,10 +57,10 @@ type gitHubContributor struct {
 	Contributions int    `json:"contributions"`
 }
 
-func fetchCommit(ref string) (gitHubCommit, error) {
+func (g *gitHubAPI) fetchCommit(ref string) (gitHubCommit, error) {
 	var commit gitHubCommit
 
-	u := fmt.Sprintf(gitHubCommitsApi, ref)
+	u := fmt.Sprintf(g.commitsAPITemplate, ref)
 
 	req, err := http.NewRequest("GET", u, nil)
 	if err != nil {
@@ -57,10 +72,10 @@ func fetchCommit(ref string) (gitHubCommit, error) {
 	return commit, err
 }
 
-func fetchRepo() (gitHubRepo, error) {
+func (g *gitHubAPI) fetchRepo() (gitHubRepo, error) {
 	var repo gitHubRepo
 
-	req, err := http.NewRequest("GET", gitHubRepoApi, nil)
+	req, err := http.NewRequest("GET", g.repoAPI, nil)
 	if err != nil {
 		return repo, err
 	}
@@ -75,7 +90,7 @@ func fetchRepo() (gitHubRepo, error) {
 	for {
 		page++
 		var currPage []gitHubContributor
-		url := fmt.Sprintf(gitHubContributorsApi+"?page=%d", page)
+		url := fmt.Sprintf(g.contributorsAPITemplate+"?page=%d", page)
 
 		req, err = http.NewRequest("GET", url, nil)
 		if err != nil {