Allow cross-repository dependencies on issues (#7901)

* in progress changes for #7405, added ability to add cross-repo dependencies

* removed unused repolink var

* fixed query that was breaking ci tests; fixed check in issue dependency add so that the id of the issue and dependency is checked rather than the indexes

* reverted removal of string in local files becasue these are done via crowdin, not updated manually

* removed 'Select("issue.*")' from getBlockedByDependencies and getBlockingDependencies based on comments in PR review

* changed getBlockedByDependencies and getBlockingDependencies to use a more xorm-like query, also updated the sidebar as a result

* simplified the getBlockingDependencies and getBlockedByDependencies methods; changed the sidebar to show the dependencies in a different format where you can see the name of the repository

* made some changes to the issue view in the dependencies (issue name on top, repo full name on separate line). Change view of issue in the dependency search results (also showing the full repo name on separate line)

* replace call to FindUserAccessibleRepoIDs with SearchRepositoryByName. The former was hardcoded to use isPrivate = false on the repo search, but this code needed it to be true. The SearchRepositoryByName method is used more in the code including on the user's dashboard

* some more tweaks to the layout of the issues when showing dependencies and in the search box when you add new dependencies

* added Name to the RepositoryMeta struct

* updated swagger doc

* fixed total count for link header on SearchIssues

* fixed indentation

* fixed aligment of remove icon on dependencies in issue sidebar

* removed unnecessary nil check (unnecessary because issue.loadRepo is called prior to this block)

* reverting .css change, somehow missed or forgot that less is used

* updated less file and generated css; updated sidebar template with styles to line up delete and issue index

* added ordering to the blocked by/depends on queries

* fixed sorting in issue dependency search and the depends on/blocks views to show issues from the current repo first, then by created date descending; added a "all cross repository dependencies" setting to allow this feature to be turned off, if turned off, the issue dependency search will work the way it did before (restricted to the current repository)

* re-applied my swagger changes after merge

* fixed split string condition in issue search

* changed ALLOW_CROSS_REPOSITORY_DEPENDENCIES description to sound more global than just the issue dependency search; returning 400 in the cross repo issue search api method if not enabled; fixed bug where the issue count did not respect the state parameter

* when adding a dependency to an issue, added a check to make sure the issue and dependency are in the same repo if cross repo dependencies is not enabled

* updated sortIssuesSession call in PullRequests, another commit moved this method from pull.go to pull_list.go so I had to re-apply my change here

* fixed incorrect setting of user id parameter in search repos call

custom/conf/app.ini.sample

@@ -479,6 +479,8 @@ DEFAULT_ORG_MEMBER_VISIBLE = false
 ; Default value for EnableDependencies
 ; Repositories will use dependencies by default depending on this setting
 DEFAULT_ENABLE_DEPENDENCIES = true
+; Dependencies can be added from any repository where the user is granted access or only from the current repository depending on this setting.
+ALLOW_CROSS_REPOSITORY_DEPENDENCIES = true
 ; Enable heatmap on users profiles.
 ENABLE_USER_HEATMAP = true
 ; Enable Timetracking

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

@@ -297,6 +297,7 @@ relation to port exhaustion.
 - `RECAPTCHA_SITEKEY`: **""**: Go to https://www.google.com/recaptcha/admin to get a sitekey for recaptcha.
 - `RECAPTCHA_URL`: **https://www.google.com/recaptcha/**: Set the recaptcha url - allows the use of recaptcha net.
 - `DEFAULT_ENABLE_DEPENDENCIES`: **true**: Enable this to have dependencies enabled by default.
+- `ALLOW_CROSS_REPOSITORY_DEPENDENCIES` : **true** Enable this to allow dependencies on issues from any repository where the user is granted access.
 - `ENABLE_USER_HEATMAP`: **true**: Enable this to display the heatmap on users profiles.
 - `EMAIL_DOMAIN_WHITELIST`: **\<empty\>**: If non-empty, list of domain names that can only be used to register
   on this instance.

models/issue.go

@@ -9,6 +9,7 @@ import (
 	"path"
 	"regexp"
 	"sort"
+	"strconv"
 	"strings"
 
 	"code.gitea.io/gitea/modules/base"
@@ -378,6 +379,12 @@ func (issue *Issue) apiFormat(e Engine) *api.Issue {
 		Updated:  issue.UpdatedUnix.AsTime(),
 	}
 
+	apiIssue.Repo = &api.RepositoryMeta{
+		ID:       issue.Repo.ID,
+		Name:     issue.Repo.Name,
+		FullName: issue.Repo.FullName(),
+	}
+
 	if issue.ClosedUnix != 0 {
 		apiIssue.Closed = issue.ClosedUnix.AsTimePtr()
 	}
@@ -1047,11 +1054,13 @@ type IssuesOptions struct {
 	LabelIDs    []int64
 	SortType    string
 	IssueIDs    []int64
+	// prioritize issues from this repo
+	PriorityRepoID int64
 }
 
 // sortIssuesSession sort an issues-related session based on the provided
 // sortType string
-func sortIssuesSession(sess *xorm.Session, sortType string) {
+func sortIssuesSession(sess *xorm.Session, sortType string, priorityRepoID int64) {
 	switch sortType {
 	case "oldest":
 		sess.Asc("issue.created_unix")
@@ -1069,6 +1078,8 @@ func sortIssuesSession(sess *xorm.Session, sortType string) {
 		sess.Asc("issue.deadline_unix")
 	case "farduedate":
 		sess.Desc("issue.deadline_unix")
+	case "priorityrepo":
+		sess.OrderBy("CASE WHEN issue.repo_id = " + strconv.FormatInt(priorityRepoID, 10) + " THEN 1 ELSE 2 END, issue.created_unix DESC")
 	default:
 		sess.Desc("issue.created_unix")
 	}
@@ -1170,7 +1181,7 @@ func Issues(opts *IssuesOptions) ([]*Issue, error) {
 	defer sess.Close()
 
 	opts.setupSession(sess)
-	sortIssuesSession(sess, opts.SortType)
+	sortIssuesSession(sess, opts.SortType, opts.PriorityRepoID)
 
 	issues := make([]*Issue, 0, setting.UI.IssuePagingNum)
 	if err := sess.Find(&issues); err != nil {
@@ -1476,8 +1487,8 @@ func GetRepoIssueStats(repoID, uid int64, filterMode int, isPull bool) (numOpen
 }
 
 // SearchIssueIDsByKeyword search issues on database
-func SearchIssueIDsByKeyword(kw string, repoID int64, limit, start int) (int64, []int64, error) {
-	var repoCond = builder.Eq{"repo_id": repoID}
+func SearchIssueIDsByKeyword(kw string, repoIDs []int64, limit, start int) (int64, []int64, error) {
+	var repoCond = builder.In("repo_id", repoIDs)
 	var subQuery = builder.Select("id").From("issue").Where(repoCond)
 	var cond = builder.And(
 		repoCond,
@@ -1566,33 +1577,43 @@ func UpdateIssueDeadline(issue *Issue, deadlineUnix timeutil.TimeStamp, doer *Us
 	return sess.Commit()
 }
 
+// DependencyInfo represents high level information about an issue which is a dependency of another issue.
+type DependencyInfo struct {
+	Issue      `xorm:"extends"`
+	Repository `xorm:"extends"`
+}
+
 // Get Blocked By Dependencies, aka all issues this issue is blocked by.
-func (issue *Issue) getBlockedByDependencies(e Engine) (issueDeps []*Issue, err error) {
+func (issue *Issue) getBlockedByDependencies(e Engine) (issueDeps []*DependencyInfo, err error) {
 	return issueDeps, e.
-		Table("issue_dependency").
-		Select("issue.*").
-		Join("INNER", "issue", "issue.id = issue_dependency.dependency_id").
+		Table("issue").
+		Join("INNER", "repository", "repository.id = issue.repo_id").
+		Join("INNER", "issue_dependency", "issue_dependency.dependency_id = issue.id").
 		Where("issue_id = ?", issue.ID).
+		//sort by repo id then created date, with the issues of the same repo at the beginning of the list
+		OrderBy("CASE WHEN issue.repo_id = " + strconv.FormatInt(issue.RepoID, 10) + " THEN 0 ELSE issue.repo_id END, issue.created_unix DESC").
 		Find(&issueDeps)
 }
 
 // Get Blocking Dependencies, aka all issues this issue blocks.
-func (issue *Issue) getBlockingDependencies(e Engine) (issueDeps []*Issue, err error) {
+func (issue *Issue) getBlockingDependencies(e Engine) (issueDeps []*DependencyInfo, err error) {
 	return issueDeps, e.
-		Table("issue_dependency").
-		Select("issue.*").
-		Join("INNER", "issue", "issue.id = issue_dependency.issue_id").
+		Table("issue").
+		Join("INNER", "repository", "repository.id = issue.repo_id").
+		Join("INNER", "issue_dependency", "issue_dependency.issue_id = issue.id").
 		Where("dependency_id = ?", issue.ID).
+		//sort by repo id then created date, with the issues of the same repo at the beginning of the list
+		OrderBy("CASE WHEN issue.repo_id = " + strconv.FormatInt(issue.RepoID, 10) + " THEN 0 ELSE issue.repo_id END, issue.created_unix DESC").
 		Find(&issueDeps)
 }
 
 // BlockedByDependencies finds all Dependencies an issue is blocked by
-func (issue *Issue) BlockedByDependencies() ([]*Issue, error) {
+func (issue *Issue) BlockedByDependencies() ([]*DependencyInfo, error) {
 	return issue.getBlockedByDependencies(x)
 }
 
 // BlockingDependencies returns all blocking dependencies, aka all other issues a given issue blocks
-func (issue *Issue) BlockingDependencies() ([]*Issue, error) {
+func (issue *Issue) BlockingDependencies() ([]*DependencyInfo, error) {
 	return issue.getBlockingDependencies(x)
 }
 

models/issue_label.go

@@ -250,6 +250,19 @@ func GetLabelIDsInRepoByNames(repoID int64, labelNames []string) ([]int64, error
 		Find(&labelIDs)
 }
 
+// GetLabelIDsInReposByNames returns a list of labelIDs by names in one of the given
+// repositories.
+// it silently ignores label names that do not belong to the repository.
+func GetLabelIDsInReposByNames(repoIDs []int64, labelNames []string) ([]int64, error) {
+	labelIDs := make([]int64, 0, len(labelNames))
+	return labelIDs, x.Table("label").
+		In("repo_id", repoIDs).
+		In("name", labelNames).
+		Asc("name").
+		Cols("id").
+		Find(&labelIDs)
+}
+
 // GetLabelInRepoByID returns a label by ID in given repository.
 func GetLabelInRepoByID(repoID, labelID int64) (*Label, error) {
 	return getLabelInRepoByID(x, repoID, labelID)

models/issue_test.go

@@ -264,24 +264,23 @@ func TestIssue_loadTotalTimes(t *testing.T) {
 
 func TestIssue_SearchIssueIDsByKeyword(t *testing.T) {
 	assert.NoError(t, PrepareTestDatabase())
-
-	total, ids, err := SearchIssueIDsByKeyword("issue2", 1, 10, 0)
+	total, ids, err := SearchIssueIDsByKeyword("issue2", []int64{1}, 10, 0)
 	assert.NoError(t, err)
 	assert.EqualValues(t, 1, total)
 	assert.EqualValues(t, []int64{2}, ids)
 
-	total, ids, err = SearchIssueIDsByKeyword("first", 1, 10, 0)
+	total, ids, err = SearchIssueIDsByKeyword("first", []int64{1}, 10, 0)
 	assert.NoError(t, err)
 	assert.EqualValues(t, 1, total)
 	assert.EqualValues(t, []int64{1}, ids)
 
-	total, ids, err = SearchIssueIDsByKeyword("for", 1, 10, 0)
+	total, ids, err = SearchIssueIDsByKeyword("for", []int64{1}, 10, 0)
 	assert.NoError(t, err)
 	assert.EqualValues(t, 4, total)
 	assert.EqualValues(t, []int64{1, 2, 3, 5}, ids)
 
 	// issue1's comment id 2
-	total, ids, err = SearchIssueIDsByKeyword("good", 1, 10, 0)
+	total, ids, err = SearchIssueIDsByKeyword("good", []int64{1}, 10, 0)
 	assert.NoError(t, err)
 	assert.EqualValues(t, 1, total)
 	assert.EqualValues(t, []int64{1}, ids)

models/pull_list.go

@@ -87,7 +87,7 @@ func PullRequests(baseRepoID int64, opts *PullRequestsOptions) ([]*PullRequest,
 
 	prs := make([]*PullRequest, 0, ItemsPerPage)
 	findSession, err := listPullRequestStatement(baseRepoID, opts)
-	sortIssuesSession(findSession, opts.SortType)
+	sortIssuesSession(findSession, opts.SortType, 0)
 	if err != nil {
 		log.Error("listPullRequestStatement: %v", err)
 		return nil, maxResults, err

modules/indexer/issues/bleve.go

@@ -218,9 +218,18 @@ func (b *BleveIndexer) Delete(ids ...int64) error {
 
 // Search searches for issues by given conditions.
 // Returns the matching issue IDs
-func (b *BleveIndexer) Search(keyword string, repoID int64, limit, start int) (*SearchResult, error) {
+func (b *BleveIndexer) Search(keyword string, repoIDs []int64, limit, start int) (*SearchResult, error) {
+	var repoQueriesP []*query.NumericRangeQuery
+	for _, repoID := range repoIDs {
+		repoQueriesP = append(repoQueriesP, numericEqualityQuery(repoID, "RepoID"))
+	}
+	repoQueries := make([]query.Query, len(repoQueriesP))
+	for i, v := range repoQueriesP {
+		repoQueries[i] = query.Query(v)
+	}
+
 	indexerQuery := bleve.NewConjunctionQuery(
-		numericEqualityQuery(repoID, "RepoID"),
+		bleve.NewDisjunctionQuery(repoQueries...),
 		bleve.NewDisjunctionQuery(
 			newMatchPhraseQuery(keyword, "Title", issueIndexerAnalyzer),
 			newMatchPhraseQuery(keyword, "Content", issueIndexerAnalyzer),
@@ -243,7 +252,6 @@ func (b *BleveIndexer) Search(keyword string, repoID int64, limit, start int) (*
 		}
 		ret.Hits = append(ret.Hits, Match{
 			ID: id,
-			RepoID: repoID,
 		})
 	}
 	return &ret, nil

modules/indexer/issues/bleve_test.go

@@ -76,7 +76,7 @@ func TestBleveIndexAndSearch(t *testing.T) {
 	)
 
 	for _, kw := range keywords {
-		res, err := indexer.Search(kw.Keyword, 2, 10, 0)
+		res, err := indexer.Search(kw.Keyword, []int64{2}, 10, 0)
 		assert.NoError(t, err)
 
 		var ids = make([]int64, 0, len(res.Hits))

modules/indexer/issues/db.go

@@ -26,8 +26,8 @@ func (db *DBIndexer) Delete(ids ...int64) error {
 }
 
 // Search dummy function
-func (db *DBIndexer) Search(kw string, repoID int64, limit, start int) (*SearchResult, error) {
-	total, ids, err := models.SearchIssueIDsByKeyword(kw, repoID, limit, start)
+func (db *DBIndexer) Search(kw string, repoIDs []int64, limit, start int) (*SearchResult, error) {
+	total, ids, err := models.SearchIssueIDsByKeyword(kw, repoIDs, limit, start)
 	if err != nil {
 		return nil, err
 	}
@@ -38,7 +38,6 @@ func (db *DBIndexer) Search(kw string, repoID int64, limit, start int) (*SearchR
 	for _, id := range ids {
 		result.Hits = append(result.Hits, Match{
 			ID: id,
-			RepoID: repoID,
 		})
 	}
 	return &result, nil

modules/indexer/issues/indexer.go

@@ -29,7 +29,6 @@ type IndexerData struct {
 // Match represents on search result
 type Match struct {
 	ID    int64   `json:"id"`
-	RepoID int64   `json:"repo_id"`
 	Score float64 `json:"score"`
 }
 
@@ -44,7 +43,7 @@ type Indexer interface {
 	Init() (bool, error)
 	Index(issue []*IndexerData) error
 	Delete(ids ...int64) error
-	Search(kw string, repoID int64, limit, start int) (*SearchResult, error)
+	Search(kw string, repoIDs []int64, limit, start int) (*SearchResult, error)
 }
 
 type indexerHolder struct {
@@ -262,9 +261,9 @@ func DeleteRepoIssueIndexer(repo *models.Repository) {
 }
 
 // SearchIssuesByKeyword search issue ids by keywords and repo id
-func SearchIssuesByKeyword(repoID int64, keyword string) ([]int64, error) {
+func SearchIssuesByKeyword(repoIDs []int64, keyword string) ([]int64, error) {
 	var issueIDs []int64
-	res, err := holder.get().Search(keyword, repoID, 1000, 0)
+	res, err := holder.get().Search(keyword, repoIDs, 1000, 0)
 	if err != nil {
 		return nil, err
 	}

modules/indexer/issues/indexer_test.go

@@ -30,19 +30,19 @@ func TestBleveSearchIssues(t *testing.T) {
 
 	time.Sleep(5 * time.Second)
 
-	ids, err := SearchIssuesByKeyword(1, "issue2")
+	ids, err := SearchIssuesByKeyword([]int64{1}, "issue2")
 	assert.NoError(t, err)
 	assert.EqualValues(t, []int64{2}, ids)
 
-	ids, err = SearchIssuesByKeyword(1, "first")
+	ids, err = SearchIssuesByKeyword([]int64{1}, "first")
 	assert.NoError(t, err)
 	assert.EqualValues(t, []int64{1}, ids)
 
-	ids, err = SearchIssuesByKeyword(1, "for")
+	ids, err = SearchIssuesByKeyword([]int64{1}, "for")
 	assert.NoError(t, err)
 	assert.EqualValues(t, []int64{1, 2, 3, 5}, ids)
 
-	ids, err = SearchIssuesByKeyword(1, "good")
+	ids, err = SearchIssuesByKeyword([]int64{1}, "good")
 	assert.NoError(t, err)
 	assert.EqualValues(t, []int64{1}, ids)
 }
@@ -53,19 +53,19 @@ func TestDBSearchIssues(t *testing.T) {
 	setting.Indexer.IssueType = "db"
 	InitIssueIndexer(true)
 
-	ids, err := SearchIssuesByKeyword(1, "issue2")
+	ids, err := SearchIssuesByKeyword([]int64{1}, "issue2")
 	assert.NoError(t, err)
 	assert.EqualValues(t, []int64{2}, ids)
 
-	ids, err = SearchIssuesByKeyword(1, "first")
+	ids, err = SearchIssuesByKeyword([]int64{1}, "first")
 	assert.NoError(t, err)
 	assert.EqualValues(t, []int64{1}, ids)
 
-	ids, err = SearchIssuesByKeyword(1, "for")
+	ids, err = SearchIssuesByKeyword([]int64{1}, "for")
 	assert.NoError(t, err)
 	assert.EqualValues(t, []int64{1, 2, 3, 5}, ids)
 
-	ids, err = SearchIssuesByKeyword(1, "good")
+	ids, err = SearchIssuesByKeyword([]int64{1}, "good")
 	assert.NoError(t, err)
 	assert.EqualValues(t, []int64{1}, ids)
 }

modules/setting/service.go

@@ -39,6 +39,7 @@ var Service struct {
 	EnableTimetracking                      bool
 	DefaultEnableTimetracking               bool
 	DefaultEnableDependencies               bool
+	AllowCrossRepositoryDependencies        bool
 	DefaultAllowOnlyContributorsToTrackTime bool
 	NoReplyAddress                          string
 	EnableUserHeatmap                       bool
@@ -79,6 +80,7 @@ func newService() {
 		Service.DefaultEnableTimetracking = sec.Key("DEFAULT_ENABLE_TIMETRACKING").MustBool(true)
 	}
 	Service.DefaultEnableDependencies = sec.Key("DEFAULT_ENABLE_DEPENDENCIES").MustBool(true)
+	Service.AllowCrossRepositoryDependencies = sec.Key("ALLOW_CROSS_REPOSITORY_DEPENDENCIES").MustBool(true)
 	Service.DefaultAllowOnlyContributorsToTrackTime = sec.Key("DEFAULT_ALLOW_ONLY_CONTRIBUTORS_TO_TRACK_TIME").MustBool(true)
 	Service.NoReplyAddress = sec.Key("NO_REPLY_ADDRESS").MustString("noreply.example.org")
 	Service.EnableUserHeatmap = sec.Key("ENABLE_USER_HEATMAP").MustBool(true)

modules/structs/issue.go

@@ -26,6 +26,13 @@ type PullRequestMeta struct {
 	Merged    *time.Time `json:"merged_at"`
 }
 
+// RepositoryMeta basic repository information
+type RepositoryMeta struct {
+	ID       int64  `json:"id"`
+	Name     string `json:"name"`
+	FullName string `json:"full_name"`
+}
+
 // Issue represents an issue in a repository
 // swagger:model
 type Issue struct {
@@ -57,6 +64,7 @@ type Issue struct {
 	Deadline *time.Time `json:"due_date"`
 
 	PullRequest *PullRequestMeta `json:"pull_request"`
+	Repo        *RepositoryMeta  `json:"repository"`
 }
 
 // ListIssueOption list issue options

public/css/index.css

@@ -78,6 +78,7 @@ a{cursor:pointer}
 .ui.form .ui.button{font-weight:400}
 .ui.floating.label{z-index:10}
 .ui.transparent.label{background-color:transparent}
+.ui.nopadding{padding:0}
 .ui.menu,.ui.segment,.ui.vertical.menu{box-shadow:none}
 .ui .menu:not(.vertical) .item>.button.compact{padding:.58928571em 1.125em}
 .ui .menu:not(.vertical) .item>.button.small{font-size:.92857143rem}
@@ -109,6 +110,8 @@ a{cursor:pointer}
 .ui .text.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block}
 .ui .text.thin{font-weight:400}
 .ui .text.middle{vertical-align:middle}
+.ui .text.nopadding{padding:0}
+.ui .text.nomargin{margin:0}
 .ui .message{text-align:center}
 .ui.bottom.attached.message{font-weight:700;text-align:left;color:#000}
 .ui.bottom.attached.message .pull-right{color:#000}

public/js/index.js

@@ -3254,10 +3254,16 @@ function deleteDependencyModal(id, type) {
 
 function initIssueList() {
     const repolink = $('#repolink').val();
+    const repoId = $('#repoId').val();
+    const crossRepoSearch = $('#crossRepoSearch').val();
+    let issueSearchUrl = suburl + '/api/v1/repos/' + repolink + '/issues?q={query}';
+    if (crossRepoSearch === 'true') {
+        issueSearchUrl = suburl + '/api/v1/repos/issues/search?q={query}&priority_repo_id=' + repoId;
+    }
     $('#new-dependency-drop-list')
         .dropdown({
             apiSettings: {
-                url: suburl + '/api/v1/repos/' + repolink + '/issues?q={query}',
+                url: issueSearchUrl,                
                 onResponse: function(response) {
                     const filteredResponse = {'success': true, 'results': []};
                     const currIssueId = $('#new-dependency-drop-list').data('issue-id');
@@ -3268,7 +3274,8 @@ function initIssueList() {
                             return;
                         }
                         filteredResponse.results.push({
-                            'name'  : '#' + issue.number + ' ' + htmlEncode(issue.title),
+                            'name'  : '#' + issue.number + ' ' + htmlEncode(issue.title) + 
+                                '<div class="text small dont-break-out">' + htmlEncode(issue.repository.full_name) + '</div>',
                             'value' : issue.id
                         });
                     });

public/less/_base.less

@@ -321,6 +321,10 @@ code,
         background-color: transparent;
     }
 
+    &.nopadding {
+        padding: 0;
+    }
+
     &.menu,
     &.vertical.menu,
     &.segment {
@@ -453,6 +457,14 @@ code,
         &.middle {
             vertical-align: middle;
         }
+
+        &.nopadding {
+            padding: 0;
+        }
+
+        &.nomargin {
+            margin: 0;
+        }
     }
 
     .message {

routers/api/v1/api.go

@@ -596,6 +596,8 @@ func RegisterRoutes(m *macaron.Macaron) {
 			m.Get("/search", repo.Search)
 		})
 
+		m.Get("/repos/issues/search", repo.SearchIssues)
+
 		m.Combo("/repositories/:id", reqToken()).Get(repo.GetByID)
 
 		m.Group("/repos", func() {

routers/api/v1/repo/issue.go

@@ -14,6 +14,7 @@ import (
 	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/modules/context"
 	issue_indexer "code.gitea.io/gitea/modules/indexer/issues"
+	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/timeutil"
@@ -22,6 +23,137 @@ import (
 	milestone_service "code.gitea.io/gitea/services/milestone"
 )
 
+// SearchIssues searches for issues across the repositories that the user has access to
+func SearchIssues(ctx *context.APIContext) {
+	// swagger:operation GET /repos/issues/search issue issueSearchIssues
+	// ---
+	// summary: Search for issues across the repositories that the user has access to
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: state
+	//   in: query
+	//   description: whether issue is open or closed
+	//   type: string
+	// - name: labels
+	//   in: query
+	//   description: comma separated list of labels. Fetch only issues that have any of this labels. Non existent labels are discarded
+	//   type: string
+	// - name: page
+	//   in: query
+	//   description: page number of requested issues
+	//   type: integer
+	// - name: q
+	//   in: query
+	//   description: search string
+	//   type: string
+	// - name: priority_repo_id
+	//   in: query
+	//   description: repository to prioritize in the results
+	//   type: integer
+	//   format: int64
+	// responses:
+	//   "200":
+	//     "$ref": "#/responses/IssueList"
+	var isClosed util.OptionalBool
+	switch ctx.Query("state") {
+	case "closed":
+		isClosed = util.OptionalBoolTrue
+	case "all":
+		isClosed = util.OptionalBoolNone
+	default:
+		isClosed = util.OptionalBoolFalse
+	}
+
+	// find repos user can access (for issue search)
+	repoIDs := make([]int64, 0)
+	issueCount := 0
+	for page := 1; ; page++ {
+		repos, count, err := models.SearchRepositoryByName(&models.SearchRepoOptions{
+			Page:        page,
+			PageSize:    15,
+			Private:     true,
+			Keyword:     "",
+			OwnerID:     ctx.User.ID,
+			TopicOnly:   false,
+			Collaborate: util.OptionalBoolNone,
+			UserIsAdmin: ctx.IsUserSiteAdmin(),
+			UserID:      ctx.User.ID,
+			OrderBy:     models.SearchOrderByRecentUpdated,
+		})
+		if err != nil {
+			ctx.Error(500, "SearchRepositoryByName", err)
+			return
+		}
+
+		if len(repos) == 0 {
+			break
+		}
+		log.Trace("Processing next %d repos of %d", len(repos), count)
+		for _, repo := range repos {
+			switch isClosed {
+			case util.OptionalBoolTrue:
+				issueCount += repo.NumClosedIssues
+			case util.OptionalBoolFalse:
+				issueCount += repo.NumOpenIssues
+			case util.OptionalBoolNone:
+				issueCount += repo.NumIssues
+			}
+			repoIDs = append(repoIDs, repo.ID)
+		}
+	}
+
+	var issues []*models.Issue
+
+	keyword := strings.Trim(ctx.Query("q"), " ")
+	if strings.IndexByte(keyword, 0) >= 0 {
+		keyword = ""
+	}
+	var issueIDs []int64
+	var labelIDs []int64
+	var err error
+	if len(keyword) > 0 && len(repoIDs) > 0 {
+		issueIDs, err = issue_indexer.SearchIssuesByKeyword(repoIDs, keyword)
+	}
+
+	labels := ctx.Query("labels")
+	if splitted := strings.Split(labels, ","); labels != "" && len(splitted) > 0 {
+		labelIDs, err = models.GetLabelIDsInReposByNames(repoIDs, splitted)
+		if err != nil {
+			ctx.Error(500, "GetLabelIDsInRepoByNames", err)
+			return
+		}
+	}
+
+	// Only fetch the issues if we either don't have a keyword or the search returned issues
+	// This would otherwise return all issues if no issues were found by the search.
+	if len(keyword) == 0 || len(issueIDs) > 0 || len(labelIDs) > 0 {
+		issues, err = models.Issues(&models.IssuesOptions{
+			RepoIDs:        repoIDs,
+			Page:           ctx.QueryInt("page"),
+			PageSize:       setting.UI.IssuePagingNum,
+			IsClosed:       isClosed,
+			IssueIDs:       issueIDs,
+			LabelIDs:       labelIDs,
+			SortType:       "priorityrepo",
+			PriorityRepoID: ctx.QueryInt64("priority_repo_id"),
+		})
+	}
+
+	if err != nil {
+		ctx.Error(500, "Issues", err)
+		return
+	}
+
+	apiIssues := make([]*api.Issue, len(issues))
+	for i := range issues {
+		apiIssues[i] = issues[i].APIFormat()
+	}
+
+	ctx.SetLinkHeader(issueCount, setting.UI.IssuePagingNum)
+	ctx.JSON(200, &apiIssues)
+}
+
 // ListIssues list the issues of a repository
 func ListIssues(ctx *context.APIContext) {
 	// swagger:operation GET /repos/{owner}/{repo}/issues issue issueListIssues
@@ -79,7 +211,7 @@ func ListIssues(ctx *context.APIContext) {
 	var labelIDs []int64
 	var err error
 	if len(keyword) > 0 {
-		issueIDs, err = issue_indexer.SearchIssuesByKeyword(ctx.Repo.Repository.ID, keyword)
+		issueIDs, err = issue_indexer.SearchIssuesByKeyword([]int64{ctx.Repo.Repository.ID}, keyword)
 	}
 
 	if splitted := strings.Split(ctx.Query("labels"), ","); len(splitted) > 0 {

routers/repo/issue.go

@@ -149,7 +149,7 @@ func issues(ctx *context.Context, milestoneID int64, isPullOption util.OptionalB
 
 	var issueIDs []int64
 	if len(keyword) > 0 {
-		issueIDs, err = issue_indexer.SearchIssuesByKeyword(repo.ID, keyword)
+		issueIDs, err = issue_indexer.SearchIssuesByKeyword([]int64{repo.ID}, keyword)
 		if err != nil {
 			ctx.ServerError("issueIndexer.Search", err)
 			return
@@ -778,6 +778,9 @@ func ViewIssue(ctx *context.Context) {
 	// Check if the user can use the dependencies
 	ctx.Data["CanCreateIssueDependencies"] = ctx.Repo.CanCreateIssueDependencies(ctx.User)
 
+	// check if dependencies can be created across repositories
+	ctx.Data["AllowCrossRepositoryDependencies"] = setting.Service.AllowCrossRepositoryDependencies
+
 	// Render comments and and fetch participants.
 	participants[0] = issue.Poster
 	for _, comment = range issue.Comments {

routers/repo/issue_dependency.go

@@ -10,6 +10,7 @@ import (
 
 	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/modules/setting"
 )
 
 // AddDependency adds new dependencies
@@ -39,14 +40,14 @@ func AddDependency(ctx *context.Context) {
 		return
 	}
 
-	// Check if both issues are in the same repo
-	if issue.RepoID != dep.RepoID {
+	// Check if both issues are in the same repo if cross repository dependencies is not enabled
+	if issue.RepoID != dep.RepoID && !setting.Service.AllowCrossRepositoryDependencies {
 		ctx.Flash.Error(ctx.Tr("repo.issues.dependency.add_error_dep_not_same_repo"))
 		return
 	}
 
 	// Check if issue and dependency is the same
-	if dep.Index == issueIndex {
+	if dep.ID == issue.ID {
 		ctx.Flash.Error(ctx.Tr("repo.issues.dependency.add_error_same_issue"))
 		return
 	}

templates/repo/issue/view_content/sidebar.tmpl

@@ -274,14 +274,15 @@
 					</span>
 					<div class="ui relaxed divided list">
 						{{range .BlockingDependencies}}
-							<div class="item{{if .IsClosed}} is-closed{{end}}">
-								<div class="ui black label">#{{.Index}}</div>
-								<a class="title has-emoji" href="{{$.RepoLink}}/issues/{{.Index}}">{{.Title}}</a>
-								<div class="ui transparent label right floated">
+							<div class="item{{if .Issue.IsClosed}} is-closed{{end}}">
+								<span class="text grey right floated">#{{.Issue.Index}}</span>
+								<a class="title has-emoji" href="{{.Repository.Link}}/issues/{{.Issue.Index}}">{{.Issue.Title}}</a>
+								<div class="text small">{{.Repository.OwnerName}}/{{.Repository.Name}}</div>
+								<div class="ui transparent label right floated nopadding">
 									{{if and $.CanCreateIssueDependencies (not $.Repository.IsArchived)}}
-										<a class="delete-dependency-button" onclick="deleteDependencyModal({{.ID}}, 'blocking');"
+										<a class="delete-dependency-button" onclick="deleteDependencyModal({{.Issue.ID}}, 'blocking');"
 											data-tooltip="{{$.i18n.Tr "repo.issues.dependency.remove_info"}}" data-inverted="">
-											<i class="delete icon text red"></i>
+											<i class="delete icon text red nopadding nomargin"></i>
 										</a>
 									{{end}}
 								</div>
@@ -300,14 +301,15 @@
 					</span>
 					<div class="ui relaxed divided list">
 						{{range .BlockedByDependencies}}
-							<div class="item{{if .IsClosed}} is-closed{{end}}">
-								<div class="ui black label">#{{.Index}}</div>
-								<a class="title has-emoji" href="{{$.RepoLink}}/issues/{{.Index}}">{{.Title}}</a>
-								<div class="ui transparent label right floated">
-									{{if and $.CanCreateIssueDependencies (not $.IsArchived)}}
-										<a class="delete-dependency-button" onclick="deleteDependencyModal({{.ID}}, 'blockedBy');"
+							<div class="item{{if .Issue.IsClosed}} is-closed{{end}}">
+								<span class="text grey right floated">#{{.Issue.Index}}</span>
+								<a class="title has-emoji" href="{{.Repository.Link}}/issues/{{.Issue.Index}}">{{.Issue.Title}}</a>
+								<div class="text small">{{.Repository.OwnerName}}/{{.Repository.Name}}</div>
+								<div class="ui transparent label right floated nopadding">
+									{{if and $.CanCreateIssueDependencies (not $.Repository.IsArchived)}}
+										<a class="delete-dependency-button" onclick="deleteDependencyModal({{.Issue.ID}}, 'blockedBy');"
 											data-tooltip="{{$.i18n.Tr "repo.issues.dependency.remove_info"}}" data-inverted="">
-											<i class="delete icon text red"></i>
+											<i class="delete icon text red nopadding nomargin"></i>
 										</a>
 									{{end}}
 								</div>
@@ -424,6 +426,8 @@
 </div>
 {{if and .CanCreateIssueDependencies (not .Repository.IsArchived)}}
 	<input type="hidden" id="repolink" value="{{$.RepoRelPath}}">
+	<input type="hidden" id="repoId" value="{{.Repository.ID}}">
+	<input type="hidden" id="crossRepoSearch" value="{{.AllowCrossRepositoryDependencies}}">
 	<!-- I know, there is probably a better way to do this -->
 	<input type="hidden" id="issueIndex" value="{{.Issue.Index}}"/>
 

templates/swagger/v1_json.tmpl

@@ -1111,6 +1111,56 @@
         }
       }
     },
+    "/repos/issues/search": {
+      "get": {
+        "produces": [
+          "application/json"
+        ],
+        "tags": [
+          "issue"
+        ],
+        "summary": "Search for issues across the repositories that the user has access to",
+        "operationId": "issueSearchIssues",
+        "parameters": [
+          {
+            "type": "string",
+            "description": "whether issue is open or closed",
+            "name": "state",
+            "in": "query"
+          },
+          {
+            "type": "string",
+            "description": "comma separated list of labels. Fetch only issues that have any of this labels. Non existent labels are discarded",
+            "name": "labels",
+            "in": "query"
+          },
+          {
+            "type": "integer",
+            "description": "page number of requested issues",
+            "name": "page",
+            "in": "query"
+          },
+          {
+            "type": "string",
+            "description": "search string",
+            "name": "q",
+            "in": "query"
+          },
+          {
+            "type": "integer",
+            "format": "int64",
+            "description": "repository to prioritize in the results",
+            "name": "priority_repo_id",
+            "in": "query"
+          }
+        ],
+        "responses": {
+          "200": {
+            "$ref": "#/responses/IssueList"
+          }
+        }
+      }
+    },
     "/repos/migrate": {
       "post": {
         "consumes": [
@@ -9199,6 +9249,9 @@
         "pull_request": {
           "$ref": "#/definitions/PullRequestMeta"
         },
+        "repository": {
+          "$ref": "#/definitions/RepositoryMeta"
+        },
         "state": {
           "$ref": "#/definitions/StateType"
         },
@@ -10095,6 +10148,26 @@
       },
       "x-go-package": "code.gitea.io/gitea/modules/structs"
     },
+    "RepositoryMeta": {
+      "description": "RepositoryMeta basic repository information",
+      "type": "object",
+      "properties": {
+        "full_name": {
+          "type": "string",
+          "x-go-name": "FullName"
+        },
+        "id": {
+          "type": "integer",
+          "format": "int64",
+          "x-go-name": "ID"
+        },
+        "name": {
+          "type": "string",
+          "x-go-name": "Name"
+        }
+      },
+      "x-go-package": "code.gitea.io/gitea/modules/structs"
+    },
     "SearchResults": {
       "description": "SearchResults results of a successful search",
       "type": "object",