Added dependencies for issues (#2196) (#2531)

custom/conf/app.ini.sample

@@ -316,6 +316,9 @@ DEFAULT_KEEP_EMAIL_PRIVATE = false
 ; Default value for AllowCreateOrganization
 ; Every new user will have rights set to create organizations depending on this setting
 DEFAULT_ALLOW_CREATE_ORGANIZATION = true
+; Default value for EnableDependencies
+; Repositories will use depencies by default depending on this setting
+DEFAULT_ENABLE_DEPENDENCIES = true
 ; Enable Timetracking
 ENABLE_TIMETRACKING = true
 ; Default value for EnableTimetracking

docs/content/doc/advanced/config-cheat-sheet.en-us.md

@@ -182,6 +182,7 @@ Values containing `#` or `;` must be quoted using `` ` `` or `"""`.
 - `CAPTCHA_TYPE`: **image**: \[image, recaptcha\]
 - `RECAPTCHA_SECRET`: **""**: Go to https://www.google.com/recaptcha/admin to get a secret for recaptcha 
 - `RECAPTCHA_SITEKEY`: **""**: Go to https://www.google.com/recaptcha/admin to get a sitekey for recaptcha
+- `DEFAULT_ENABLE_DEPENDENCIES`: **true** Enable this to have dependencies enabled by default.
 
 ## Webhook (`webhook`)
 

models/action.go

@@ -477,6 +477,10 @@ func UpdateIssuesCommit(doer *User, repo *Repository, commits []*PushCommit) err
 			}
 
 			if err = issue.ChangeStatus(doer, repo, true); err != nil {
+				// Don't return an error when dependencies are open as this would let the push fail
+				if IsErrDependenciesLeft(err) {
+					return nil
+				}
 				return err
 			}
 		}

models/error.go

@@ -1259,3 +1259,88 @@ func IsErrU2FRegistrationNotExist(err error) bool {
 	_, ok := err.(ErrU2FRegistrationNotExist)
 	return ok
 }
+
+// .___                            ________                                   .___                   .__
+// |   | ______ ________ __   ____ \______ \   ____ ______   ____   ____    __| _/____   ____   ____ |__| ____   ______
+// |   |/  ___//  ___/  |  \_/ __ \ |    |  \_/ __ \\____ \_/ __ \ /    \  / __ |/ __ \ /    \_/ ___\|  |/ __ \ /  ___/
+// |   |\___ \ \___ \|  |  /\  ___/ |    `   \  ___/|  |_> >  ___/|   |  \/ /_/ \  ___/|   |  \  \___|  \  ___/ \___ \
+// |___/____  >____  >____/  \___  >_______  /\___  >   __/ \___  >___|  /\____ |\___  >___|  /\___  >__|\___  >____  >
+//          \/     \/            \/        \/     \/|__|        \/     \/      \/    \/     \/     \/        \/     \/
+
+// ErrDependencyExists represents a "DependencyAlreadyExists" kind of error.
+type ErrDependencyExists struct {
+	IssueID      int64
+	DependencyID int64
+}
+
+// IsErrDependencyExists checks if an error is a ErrDependencyExists.
+func IsErrDependencyExists(err error) bool {
+	_, ok := err.(ErrDependencyExists)
+	return ok
+}
+
+func (err ErrDependencyExists) Error() string {
+	return fmt.Sprintf("issue dependency does already exist [issue id: %d, dependency id: %d]", err.IssueID, err.DependencyID)
+}
+
+// ErrDependencyNotExists represents a "DependencyAlreadyExists" kind of error.
+type ErrDependencyNotExists struct {
+	IssueID      int64
+	DependencyID int64
+}
+
+// IsErrDependencyNotExists checks if an error is a ErrDependencyExists.
+func IsErrDependencyNotExists(err error) bool {
+	_, ok := err.(ErrDependencyNotExists)
+	return ok
+}
+
+func (err ErrDependencyNotExists) Error() string {
+	return fmt.Sprintf("issue dependency does not exist [issue id: %d, dependency id: %d]", err.IssueID, err.DependencyID)
+}
+
+// ErrCircularDependency represents a "DependencyCircular" kind of error.
+type ErrCircularDependency struct {
+	IssueID      int64
+	DependencyID int64
+}
+
+// IsErrCircularDependency checks if an error is a ErrCircularDependency.
+func IsErrCircularDependency(err error) bool {
+	_, ok := err.(ErrCircularDependency)
+	return ok
+}
+
+func (err ErrCircularDependency) Error() string {
+	return fmt.Sprintf("circular dependencies exists (two issues blocking each other) [issue id: %d, dependency id: %d]", err.IssueID, err.DependencyID)
+}
+
+// ErrDependenciesLeft represents an error where the issue you're trying to close still has dependencies left.
+type ErrDependenciesLeft struct {
+	IssueID int64
+}
+
+// IsErrDependenciesLeft checks if an error is a ErrDependenciesLeft.
+func IsErrDependenciesLeft(err error) bool {
+	_, ok := err.(ErrDependenciesLeft)
+	return ok
+}
+
+func (err ErrDependenciesLeft) Error() string {
+	return fmt.Sprintf("issue has open dependencies [issue id: %d]", err.IssueID)
+}
+
+// ErrUnknownDependencyType represents an error where an unknown dependency type was passed
+type ErrUnknownDependencyType struct {
+	Type DependencyType
+}
+
+// IsErrUnknownDependencyType checks if an error is ErrUnknownDependencyType
+func IsErrUnknownDependencyType(err error) bool {
+	_, ok := err.(ErrUnknownDependencyType)
+	return ok
+}
+
+func (err ErrUnknownDependencyType) Error() string {
+	return fmt.Sprintf("unknown dependency type [type: %d]", err.Type)
+}

models/issue.go

@@ -649,6 +649,20 @@ func (issue *Issue) changeStatus(e *xorm.Session, doer *User, repo *Repository,
 	if issue.IsClosed == isClosed {
 		return nil
 	}
+
+	// Check for open dependencies
+	if isClosed && issue.Repo.IsDependenciesEnabled() {
+		// only check if dependencies are enabled and we're about to close an issue, otherwise reopening an issue would fail when there are unsatisfied dependencies
+		noDeps, err := IssueNoDependenciesLeft(issue)
+		if err != nil {
+			return err
+		}
+
+		if !noDeps {
+			return ErrDependenciesLeft{issue.ID}
+		}
+	}
+
 	issue.IsClosed = isClosed
 	if isClosed {
 		issue.ClosedUnix = util.TimeStampNow()
@@ -1598,3 +1612,33 @@ func UpdateIssueDeadline(issue *Issue, deadlineUnix util.TimeStamp, doer *User)
 
 	return sess.Commit()
 }
+
+// Get Blocked By Dependencies, aka all issues this issue is blocked by.
+func (issue *Issue) getBlockedByDependencies(e Engine) (issueDeps []*Issue, err error) {
+	return issueDeps, e.
+		Table("issue_dependency").
+		Select("issue.*").
+		Join("INNER", "issue", "issue.id = issue_dependency.dependency_id").
+		Where("issue_id = ?", issue.ID).
+		Find(&issueDeps)
+}
+
+// Get Blocking Dependencies, aka all issues this issue blocks.
+func (issue *Issue) getBlockingDependencies(e Engine) (issueDeps []*Issue, err error) {
+	return issueDeps, e.
+		Table("issue_dependency").
+		Select("issue.*").
+		Join("INNER", "issue", "issue.id = issue_dependency.issue_id").
+		Where("dependency_id = ?", issue.ID).
+		Find(&issueDeps)
+}
+
+// BlockedByDependencies finds all Dependencies an issue is blocked by
+func (issue *Issue) BlockedByDependencies() ([]*Issue, error) {
+	return issue.getBlockedByDependencies(x)
+}
+
+// BlockingDependencies returns all blocking dependencies, aka all other issues a given issue blocks
+func (issue *Issue) BlockingDependencies() ([]*Issue, error) {
+	return issue.getBlockingDependencies(x)
+}

models/issue_comment.go

@@ -66,6 +66,10 @@ const (
 	CommentTypeModifiedDeadline
 	// Removed a due date
 	CommentTypeRemovedDeadline
+	// Dependency added
+	CommentTypeAddDependency
+	//Dependency removed
+	CommentTypeRemoveDependency
 )
 
 // CommentTag defines comment tag type
@@ -81,23 +85,25 @@ const (
 
 // Comment represents a comment in commit and issue page.
 type Comment struct {
-	ID              int64 `xorm:"pk autoincr"`
-	Type            CommentType
-	PosterID        int64  `xorm:"INDEX"`
-	Poster          *User  `xorm:"-"`
-	IssueID         int64  `xorm:"INDEX"`
-	Issue           *Issue `xorm:"-"`
-	LabelID         int64
-	Label           *Label `xorm:"-"`
-	OldMilestoneID  int64
-	MilestoneID     int64
-	OldMilestone    *Milestone `xorm:"-"`
-	Milestone       *Milestone `xorm:"-"`
-	AssigneeID      int64
-	RemovedAssignee bool
-	Assignee        *User `xorm:"-"`
-	OldTitle        string
-	NewTitle        string
+	ID               int64 `xorm:"pk autoincr"`
+	Type             CommentType
+	PosterID         int64  `xorm:"INDEX"`
+	Poster           *User  `xorm:"-"`
+	IssueID          int64  `xorm:"INDEX"`
+	Issue            *Issue `xorm:"-"`
+	LabelID          int64
+	Label            *Label `xorm:"-"`
+	OldMilestoneID   int64
+	MilestoneID      int64
+	OldMilestone     *Milestone `xorm:"-"`
+	Milestone        *Milestone `xorm:"-"`
+	AssigneeID       int64
+	RemovedAssignee  bool
+	Assignee         *User `xorm:"-"`
+	OldTitle         string
+	NewTitle         string
+	DependentIssueID int64
+	DependentIssue   *Issue `xorm:"-"`
 
 	CommitID        int64
 	Line            int64
@@ -281,6 +287,15 @@ func (c *Comment) LoadAssigneeUser() error {
 	return nil
 }
 
+// LoadDepIssueDetails loads Dependent Issue Details
+func (c *Comment) LoadDepIssueDetails() (err error) {
+	if c.DependentIssueID <= 0 || c.DependentIssue != nil {
+		return nil
+	}
+	c.DependentIssue, err = getIssueByID(x, c.DependentIssueID)
+	return err
+}
+
 // MailParticipants sends new comment emails to repository watchers
 // and mentioned people.
 func (c *Comment) MailParticipants(e Engine, opType ActionType, issue *Issue) (err error) {
@@ -332,22 +347,24 @@ func createComment(e *xorm.Session, opts *CreateCommentOptions) (_ *Comment, err
 	if opts.Label != nil {
 		LabelID = opts.Label.ID
 	}
+
 	comment := &Comment{
-		Type:            opts.Type,
-		PosterID:        opts.Doer.ID,
-		Poster:          opts.Doer,
-		IssueID:         opts.Issue.ID,
-		LabelID:         LabelID,
-		OldMilestoneID:  opts.OldMilestoneID,
-		MilestoneID:     opts.MilestoneID,
-		RemovedAssignee: opts.RemovedAssignee,
-		AssigneeID:      opts.AssigneeID,
-		CommitID:        opts.CommitID,
-		CommitSHA:       opts.CommitSHA,
-		Line:            opts.LineNum,
-		Content:         opts.Content,
-		OldTitle:        opts.OldTitle,
-		NewTitle:        opts.NewTitle,
+		Type:             opts.Type,
+		PosterID:         opts.Doer.ID,
+		Poster:           opts.Doer,
+		IssueID:          opts.Issue.ID,
+		LabelID:          LabelID,
+		OldMilestoneID:   opts.OldMilestoneID,
+		MilestoneID:      opts.MilestoneID,
+		RemovedAssignee:  opts.RemovedAssignee,
+		AssigneeID:       opts.AssigneeID,
+		CommitID:         opts.CommitID,
+		CommitSHA:        opts.CommitSHA,
+		Line:             opts.LineNum,
+		Content:          opts.Content,
+		OldTitle:         opts.OldTitle,
+		NewTitle:         opts.NewTitle,
+		DependentIssueID: opts.DependentIssueID,
 	}
 	if _, err = e.Insert(comment); err != nil {
 		return nil, err
@@ -549,6 +566,39 @@ func createDeleteBranchComment(e *xorm.Session, doer *User, repo *Repository, is
 	})
 }
 
+// Creates issue dependency comment
+func createIssueDependencyComment(e *xorm.Session, doer *User, issue *Issue, dependentIssue *Issue, add bool) (err error) {
+	cType := CommentTypeAddDependency
+	if !add {
+		cType = CommentTypeRemoveDependency
+	}
+
+	// Make two comments, one in each issue
+	_, err = createComment(e, &CreateCommentOptions{
+		Type:             cType,
+		Doer:             doer,
+		Repo:             issue.Repo,
+		Issue:            issue,
+		DependentIssueID: dependentIssue.ID,
+	})
+	if err != nil {
+		return
+	}
+
+	_, err = createComment(e, &CreateCommentOptions{
+		Type:             cType,
+		Doer:             doer,
+		Repo:             issue.Repo,
+		Issue:            dependentIssue,
+		DependentIssueID: issue.ID,
+	})
+	if err != nil {
+		return
+	}
+
+	return
+}
+
 // CreateCommentOptions defines options for creating comment
 type CreateCommentOptions struct {
 	Type  CommentType
@@ -557,17 +607,18 @@ type CreateCommentOptions struct {
 	Issue *Issue
 	Label *Label
 
-	OldMilestoneID  int64
-	MilestoneID     int64
-	AssigneeID      int64
-	RemovedAssignee bool
-	OldTitle        string
-	NewTitle        string
-	CommitID        int64
-	CommitSHA       string
-	LineNum         int64
-	Content         string
-	Attachments     []string // UUIDs of attachments
+	DependentIssueID int64
+	OldMilestoneID   int64
+	MilestoneID      int64
+	AssigneeID       int64
+	RemovedAssignee  bool
+	OldTitle         string
+	NewTitle         string
+	CommitID         int64
+	CommitSHA        string
+	LineNum          int64
+	Content          string
+	Attachments      []string // UUIDs of attachments
 }
 
 // CreateComment creates comment of issue or commit.