Merge pull request 'Resolve TODOs' (#8) from resolve-todos into master

Reviewed-on: #8

main.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"time"
 
 	"github.com/AlecAivazis/survey/v2"
 	"github.com/gobwas/glob"
@@ -23,6 +24,17 @@ type Cache struct {
 	pullBaseBranch string `json:"pullBaseBranch"`
 }
 
+type pullCache struct {
+	repoID int
+	iid    int
+	webURL string
+}
+
+const (
+	perPage         = 10
+	waitSecForMerge = 3
+)
+
 func loadCache() (cache *Cache) {
 	// default values
 	cache = &Cache{
@@ -115,31 +127,51 @@ func main() {
 		}
 
 		repoList = append(repoList, repos...)
-
 		if len(repos) < 10 {
 			break
 		}
-
 		page++
 	}
 	fmt.Println()
 
+	var pullsToMergeCache []*pullCache
 	for i := range repoList {
 		if !excludeRule.Match(repoList[i].Name) {
 			// for each NOT excluded repo ...
-			threatRepo(baseBranchRule, client, repoList[i])
+			pullsToMergeCache = append(pullsToMergeCache,
+				threatRepo(baseBranchRule, client, repoList[i]),
+			)
 		}
 	}
+
+	fmt.Printf("\n\nwait 3sec for gitlab before merge created pulls\n")
+	time.Sleep(waitSecForMerge * time.Second)
+	mergePulls(client, pullsToMergeCache)
 }
 
 // threatRepo create (if needed) & merge "develop[ment]" branch in DefaultBranch
-func threatRepo(baseBranchRule glob.Glob, client *gitlab.Client, repo *gitlab.Project) {
+// and return pulls to merge
+func threatRepo(baseBranchRule glob.Glob, client *gitlab.Client, repo *gitlab.Project) *pullCache {
 	fmt.Printf("Handle Repository '%s'\n", repo.Name)
 
-	// TODO: handle pagination
-	branchList, _, err := client.Branches.ListBranches(repo.ID, nil)
-	if err != nil {
-		error(10, "Could not obtain branch list from '%s': %v\n", repo.Name, err)
+	var branchList []*gitlab.Branch
+	var page = 1
+	for {
+		bL, _, err := client.Branches.ListBranches(repo.ID, &gitlab.ListBranchesOptions{
+			ListOptions: gitlab.ListOptions{
+				Page:    page,
+				PerPage: perPage,
+			},
+		})
+		if err != nil {
+			error(10, "Could not obtain branch list from '%s': %v\n", repo.Name, err)
+		}
+
+		branchList = append(branchList, bL...)
+		if len(bL) < 10 {
+			break
+		}
+		page++
 	}
 
 	fmt.Printf("  found %d branches:", len(branchList))
@@ -164,7 +196,7 @@ func threatRepo(baseBranchRule glob.Glob, client *gitlab.Client, repo *gitlab.Pr
 
 			if len(diff.Commits) == 0 {
 				fmt.Printf("  branch '%s' is not ahead of '%s', skiping\n", baseBranch.Name, repo.DefaultBranch)
-				return
+				return nil
 			}
 
 			// check if pull already exist
@@ -181,7 +213,7 @@ func threatRepo(baseBranchRule glob.Glob, client *gitlab.Client, repo *gitlab.Pr
 			if len(pullList) == 0 {
 				fmt.Printf("  no existing pull for %s, creating one ...\n", baseBranch.Name)
 				pull, _, err := client.MergeRequests.CreateMergeRequest(repo.ID, &gitlab.CreateMergeRequestOptions{
-					Title:              optString(fmt.Sprintf("%s <- %s", repo.DefaultBranch, baseBranch.Name)), // TODO: better title (required)
+					Title:              optString(fmt.Sprintf("%s <- %s", repo.DefaultBranch, baseBranch.Name)),
 					Description:        optString("Auto created by https://code.obermui.de/6543/GitLab_MergeDevel2Default"),
 					SourceBranch:       &baseBranch.Name,
 					TargetBranch:       &repo.DefaultBranch,
@@ -189,7 +221,7 @@ func threatRepo(baseBranchRule glob.Glob, client *gitlab.Client, repo *gitlab.Pr
 				})
 				if err != nil {
 					fmt.Printf("  could not create merge request '%s <- %s', skiping '%s'\n", repo.DefaultBranch, baseBranch.Name, repo.Name)
-					return
+					return nil
 				}
 				pullList = []*gitlab.MergeRequest{pull}
 			} else {
@@ -197,32 +229,38 @@ func threatRepo(baseBranchRule glob.Glob, client *gitlab.Client, repo *gitlab.Pr
 				changes, _, err := client.MergeRequests.GetMergeRequestChanges(repo.ID, pullList[0].IID, nil)
 				if err != nil {
 					fmt.Printf("  could not obtain changes of merge request '%s', skiping '%s'\n", pullList[0].WebURL, repo.Name)
-					return
+					return nil
 				}
 
 				if len(changes.Changes) == 0 {
 					fmt.Printf("  pull '%s' does not conatin changes, skiping\n", changes.WebURL)
-					return
+					return nil
 				}
 			}
 
-			// TODO: check and wait for pull to get ready
+			// since we had a match go to next repo ... and return pull
+			return &pullCache{
+				repoID: repo.ID,
+				iid:    pullList[0].IID,
+				webURL: pullList[0].WebURL,
+			}
+		}
+	}
+	return nil
+}
 
-			// merge pull
-			if pull, _, err := client.MergeRequests.AcceptMergeRequest(repo.ID, pullList[0].IID, nil); err != nil {
-				fmt.Printf("  pull '%s' can not be merged: %v\n", pullList[0].WebURL, err)
+func mergePulls(c *gitlab.Client, pulls []*pullCache) {
+	for i := range pulls {
+		if pull, _, err := c.MergeRequests.AcceptMergeRequest(pulls[i].repoID, pulls[i].iid, nil); err != nil {
+			fmt.Printf("  pull '%s' can not be merged: %v\n", pulls[i].webURL, err)
+		} else {
+			fmt.Printf("  pull '%s' got merged successfully\n", pull.WebURL)
+
+			if err, _ := c.Branches.DeleteBranch(pulls[i].repoID, pull.SourceBranch); err != nil {
+				fmt.Printf("  branch '%s' can not be deleted: %v\n", pull.SourceBranch, err)
 			} else {
-				fmt.Printf("  pull '%s' got merged successfully\n", pull.WebURL)
-
-				if err, _ := client.Branches.DeleteBranch(repo.ID, baseBranch.Name); err != nil {
-					fmt.Printf("  branch '%s' can not be deleted: %v\n", baseBranch.Name, err)
-				} else {
-					fmt.Printf("  branch '%s' successfully deleted\n", baseBranch.Name)
-				}
+				fmt.Printf("  branch '%s' successfully deleted\n", pull.SourceBranch)
 			}
-
-			// since we had a match go to next repo ...
-			return
 		}
 	}
 }