increment build from counter

model/repo.go

@@ -30,6 +30,7 @@ type Repo struct {
 	AllowPush   bool   `json:"allow_push"               meddler:"repo_allow_push"`
 	AllowDeploy bool   `json:"allow_deploys"            meddler:"repo_allow_deploys"`
 	AllowTag    bool   `json:"allow_tags"               meddler:"repo_allow_tags"`
+	Counter     int    `json:"last_build"               meddler:"repo_counter"`
 	Config      string `json:"config_file"              meddler:"repo_config_path"`
 	Hash        string `json:"-"                        meddler:"repo_hash"`
 }

store/datastore/builds.go

@@ -1,9 +1,11 @@
 package datastore
 
 import (
+	"fmt"
 	"time"
 
 	"github.com/drone/drone/model"
+	"github.com/drone/drone/store/datastore/sql"
 	"github.com/russross/meddler"
 )
 
@@ -56,12 +58,14 @@ func (db *datastore) GetBuildQueue() ([]*model.Feed, error) {
 }
 
 func (db *datastore) CreateBuild(build *model.Build, procs ...*model.Proc) error {
-	var number int
-	db.QueryRow(rebind(buildNumberLast), build.RepoID).Scan(&number)
-	build.Number = number + 1
+	id, err := db.incrementRepoRetry(build.RepoID)
+	if err != nil {
+		return err
+	}
+	build.Number = id
 	build.Created = time.Now().UTC().Unix()
 	build.Enqueued = build.Created
-	err := meddler.Insert(db, buildTable, build)
+	err = meddler.Insert(db, buildTable, build)
 	if err != nil {
 		return err
 	}
@@ -75,6 +79,39 @@ func (db *datastore) CreateBuild(build *model.Build, procs ...*model.Proc) error
 	return nil
 }
 
+func (db *datastore) incrementRepoRetry(id int64) (int, error) {
+	repo, err := db.GetRepo(id)
+	if err != nil {
+		return 0, fmt.Errorf("database: cannot fetch repository: %s", err)
+	}
+	for i := 0; i < 10; i++ {
+		seq, err := db.incrementRepo(repo.ID, repo.Counter+i, repo.Counter+i+1)
+		if err != nil {
+			return 0, err
+		}
+		if seq == 0 {
+			continue
+		}
+		return seq, nil
+	}
+	return 0, fmt.Errorf("cannot increment next build number")
+}
+
+func (db *datastore) incrementRepo(id int64, old, new int) (int, error) {
+	results, err := db.Exec(sql.Lookup(db.driver, "repo-update-counter"), new, old, id)
+	if err != nil {
+		return 0, fmt.Errorf("database: update repository counter: %s", err)
+	}
+	updated, err := results.RowsAffected()
+	if err != nil {
+		return 0, fmt.Errorf("database: update repository counter: %s", err)
+	}
+	if updated == 0 {
+		return 0, nil
+	}
+	return new, nil
+}
+
 func (db *datastore) UpdateBuild(build *model.Build) error {
 	return meddler.Update(db, buildTable, build)
 }

store/datastore/builds_test.go

@@ -8,12 +8,23 @@ import (
 )
 
 func TestBuilds(t *testing.T) {
+	repo := &model.Repo{
+		UserID:   1,
+		FullName: "bradrydzewski/drone",
+		Owner:    "bradrydzewski",
+		Name:     "drone",
+	}
+
 	db := openTest()
 	defer db.Close()
 
 	s := From(db)
 	g := goblin.Goblin(t)
 	g.Describe("Builds", func() {
+		g.Before(func() {
+			db.Exec("DELETE FROM repos")
+			s.CreateRepo(repo)
+		})
 
 		// before each test be sure to purge the package
 		// table data from the database.
@@ -24,11 +35,11 @@ func TestBuilds(t *testing.T) {
 
 		g.It("Should Post a Build", func() {
 			build := model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusSuccess,
 				Commit: "85f8c029b902ed9400bc600bac301a0aadb144ac",
 			}
-			err := s.CreateBuild(&build, []*model.Proc{}...)
+			err := s.CreateBuild(&build)
 			g.Assert(err == nil).IsTrue()
 			g.Assert(build.ID != 0).IsTrue()
 			g.Assert(build.Number).Equal(1)
@@ -37,12 +48,12 @@ func TestBuilds(t *testing.T) {
 
 		g.It("Should Put a Build", func() {
 			build := model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Number: 5,
 				Status: model.StatusSuccess,
 				Commit: "85f8c029b902ed9400bc600bac301a0aadb144ac",
 			}
-			s.CreateBuild(&build, []*model.Proc{}...)
+			s.CreateBuild(&build)
 			build.Status = model.StatusRunning
 			err1 := s.UpdateBuild(&build)
 			getbuild, err2 := s.GetBuild(build.ID)
@@ -56,7 +67,7 @@ func TestBuilds(t *testing.T) {
 
 		g.It("Should Get a Build", func() {
 			build := model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusSuccess,
 			}
 			s.CreateBuild(&build, []*model.Proc{}...)
@@ -69,11 +80,11 @@ func TestBuilds(t *testing.T) {
 
 		g.It("Should Get a Build by Number", func() {
 			build1 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusPending,
 			}
 			build2 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusPending,
 			}
 			err1 := s.CreateBuild(build1, []*model.Proc{}...)
@@ -89,12 +100,12 @@ func TestBuilds(t *testing.T) {
 
 		g.It("Should Get a Build by Ref", func() {
 			build1 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusPending,
 				Ref:    "refs/pull/5",
 			}
 			build2 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusPending,
 				Ref:    "refs/pull/6",
 			}
@@ -112,12 +123,12 @@ func TestBuilds(t *testing.T) {
 
 		g.It("Should Get a Build by Ref", func() {
 			build1 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusPending,
 				Ref:    "refs/pull/5",
 			}
 			build2 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusPending,
 				Ref:    "refs/pull/6",
 			}
@@ -135,13 +146,13 @@ func TestBuilds(t *testing.T) {
 
 		g.It("Should Get a Build by Commit", func() {
 			build1 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusPending,
 				Branch: "master",
 				Commit: "85f8c029b902ed9400bc600bac301a0aadb144ac",
 			}
 			build2 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusPending,
 				Branch: "dev",
 				Commit: "85f8c029b902ed9400bc600bac301a0aadb144aa",
@@ -161,14 +172,14 @@ func TestBuilds(t *testing.T) {
 
 		g.It("Should Get the last Build", func() {
 			build1 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusFailure,
 				Branch: "master",
 				Commit: "85f8c029b902ed9400bc600bac301a0aadb144ac",
 				Event:  model.EventPush,
 			}
 			build2 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusSuccess,
 				Branch: "master",
 				Commit: "85f8c029b902ed9400bc600bac301a0aadb144aa",
@@ -190,19 +201,19 @@ func TestBuilds(t *testing.T) {
 
 		g.It("Should Get the last Build Before Build N", func() {
 			build1 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusFailure,
 				Branch: "master",
 				Commit: "85f8c029b902ed9400bc600bac301a0aadb144ac",
 			}
 			build2 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusSuccess,
 				Branch: "master",
 				Commit: "85f8c029b902ed9400bc600bac301a0aadb144aa",
 			}
 			build3 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusRunning,
 				Branch: "master",
 				Commit: "85f8c029b902ed9400bc600bac301a0aadb144aa",
@@ -225,11 +236,11 @@ func TestBuilds(t *testing.T) {
 
 		g.It("Should get recent Builds", func() {
 			build1 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusFailure,
 			}
 			build2 := &model.Build{
-				RepoID: 1,
+				RepoID: repo.ID,
 				Status: model.StatusSuccess,
 			}
 			s.CreateBuild(build1, []*model.Proc{}...)
@@ -243,3 +254,58 @@ func TestBuilds(t *testing.T) {
 		})
 	})
 }
+
+func TestBuildIncrement(t *testing.T) {
+	s := newTest()
+	defer func() {
+		s.Exec("delete from repos")
+		s.Exec("delete from builds")
+		s.Close()
+	}()
+
+	repo := &model.Repo{
+		UserID:   1,
+		FullName: "bradrydzewski/drone",
+		Owner:    "bradrydzewski",
+		Name:     "drone",
+	}
+	if err := s.CreateRepo(repo); err != nil {
+		t.Error(err)
+	}
+
+	num, err := s.incrementRepo(repo.ID, 0, 1)
+	if err != nil {
+		t.Error(err)
+	}
+
+	if got, want := num, 1; got != want {
+		t.Errorf("Want repository counter incremented to %d, got %d", want, got)
+	}
+
+	num, err = s.incrementRepo(repo.ID, 1, 2)
+	if err != nil {
+		t.Error(err)
+	}
+
+	if got, want := num, 2; got != want {
+		t.Errorf("Want repository counter incremented to %d, got %d", want, got)
+	}
+
+	// this block tests incrementing the repository counter
+	// should fail when attempting to increment the counter
+	// from a stale base.
+	num, _ = s.incrementRepo(repo.ID, 1, 2)
+	if num != 0 {
+		t.Errorf("Want error when trying to increment stale number")
+	}
+
+	// this block tests incrementing the repository counter
+	// using the given repository id with backoff.
+	num, err = s.incrementRepoRetry(repo.ID)
+	if err != nil {
+		t.Error(err)
+	}
+	if got, want := num, 3; got != want {
+		t.Errorf("Want repository counter incremented to %d, got %d", want, got)
+	}
+}

store/datastore/config_test.go

@@ -79,7 +79,12 @@ func TestConfigApproved(t *testing.T) {
 		t.Errorf("Unexpected error: insert config: %s", err)
 		return
 	}
-
+	s.CreateRepo(&model.Repo{
+		UserID:   1,
+		FullName: "bradrydzewski/drone",
+		Owner:    "bradrydzewski",
+		Name:     "drone",
+	})
 	s.CreateBuild(&model.Build{
 		RepoID:   1,
 		ConfigID: conf.ID,

store/datastore/ddl/mysql/ddl_gen.go

@@ -88,6 +88,14 @@ var migrations = []struct {
 		name: "create-index-sender-repos",
 		stmt: createIndexSenderRepos,
 	},
+	{
+		name: "alter-table-add-repo-seq",
+		stmt: alterTableAddRepoSeq,
+	},
+	{
+		name: "update-table-set-repo-seq",
+		stmt: updateTableSetRepoSeq,
+	},
 }
 
 // Migrate performs the database migration. If the migration fails
@@ -150,7 +158,7 @@ func selectCompleted(db *sql.DB) (map[string]struct{}, error) {
 
 var migrationTableCreate = `
 CREATE TABLE IF NOT EXISTS migrations (
- name VARCHAR(512)
+ name VARCHAR(255)
 ,UNIQUE(name)
 )
 `
@@ -442,3 +450,19 @@ CREATE TABLE IF NOT EXISTS senders (
 var createIndexSenderRepos = `
 CREATE INDEX sender_repo_ix ON senders (sender_repo_id);
 `
+
+//
+// 014_add_column_repo_seq.sql
+//
+
+var alterTableAddRepoSeq = `
+ALTER TABLE repos ADD COLUMN repo_counter INTEGER;
+`
+
+var updateTableSetRepoSeq = `
+UPDATE repos SET repo_counter = (
+  SELECT max(build_number)
+  FROM builds
+  WHERE builds.build_repo_id = repos.repo_id
+)
+`