feat(linker): link when branch names contain issue keys (#8777)

* feat(linker): branch names containing issue keys

* chore: add testing data

Author: ReeceXW

backend/plugins/linker/e2e/snapshot_tables/board_issues.csv

@@ -1,3 +1,4 @@
 "board_id","issue_id","created_at","updated_at","_raw_data_params","_raw_data_table","_raw_data_id","_raw_data_remark"
 "github:GithubRepo:1:384111310","github:GithubIssue:1:1237324696","2024-05-14 10:42:37.541","2024-05-28 00:25:41.436","{""ConnectionId"":1,""Name"":""apache/incubator-devlake""}","_raw_github_graphql_issues",69,""
 "github:GithubRepo:1:384111310","github:GithubIssue:1:1237324697","2024-05-14 10:42:37.541","2024-05-28 00:25:41.436","{""ConnectionId"":1,""Name"":""apache/incubator-devlake""}","_raw_github_graphql_issues",69,""
+"github:GithubRepo:1:384111310","github:GithubIssue:1:1237324698","2024-05-14 10:42:37.541","2024-05-28 00:25:41.436","{""ConnectionId"":1,""Name"":""apache/incubator-devlake""}","_raw_github_graphql_issues",69,""

backend/plugins/linker/e2e/snapshot_tables/pull_request_issues.csv

@@ -1,3 +1,4 @@
 pull_request_id,issue_id,pull_request_key,issue_key,_raw_data_params,_raw_data_table,_raw_data_id,_raw_data_remark
 github:GithubPullRequest:1:1819250573,github:GithubIssue:1:1237324696,7317,1884,,,0,"pull_requests,"
 github:GithubPullRequest:1:1819250573,github:GithubIssue:1:1237324697,7317,1885,,,0,"pull_requests,"
+github:GithubPullRequest:1:1819250574,github:GithubIssue:1:1237324698,7318,1886,,,0,"pull_requests,"

backend/plugins/linker/e2e/snapshot_tables/pull_requests.csv

@@ -1,2 +1,3 @@
 "id","created_at","updated_at","_raw_data_params","_raw_data_table","_raw_data_id","_raw_data_remark","base_repo_id","base_ref","base_commit_sha","head_repo_id","head_ref","head_commit_sha","merge_commit_sha","status","original_status","type","component","title","description","url","author_name","author_id","parent_pr_id","pull_request_key","created_date","merged_date","closed_date"
-"github:GithubPullRequest:1:1819250573","2024-05-15 12:07:36.778","2024-05-15 12:07:36.778","{""ConnectionId"":1,""Name"":""apache/incubator-devlake""}","_raw_github_api_pull_requests",191,"","github:GithubRepo:1:384111310","main","64c52748f3529784cb6c8a372691aa0f638fa73d","github:GithubRepo:1:384111310","fix#7275","14fb6488f2208e6a65374a86efce12dd460987e0","91dbce48759da14a4a030124c3ef751f1c5d8389","CLOSED","closed","","","fix: can't GET projects which have / in their name #1884 #1885","desc","https://github.com/apache/incubator-devlake/pull/7317","abeizn","github:GithubAccount:1:101256042","",7317,"2024-04-12 05:31:43.000","2024-04-13 05:31:43.000","2024-04-12 06:44:27.000"
+"github:GithubPullRequest:1:1819250573","2024-05-15 12:07:36.778","2024-05-15 12:07:36.778","{""ConnectionId"":1,""Name"":""apache/incubator-devlake""}","_raw_github_api_pull_requests",191,"","github:GithubRepo:1:384111310","main","64c52748f3529784cb6c8a372691aa0f638fa73d","github:GithubRepo:1:384111310","fix#7275","14fb6488f2208e6a65374a86efce12dd460987e0","91dbce48759da14a4a030124c3ef751f1c5d8389","CLOSED","closed","","","fix: can't GET projects which have / in their name #1884 #1885","desc","https://github.com/apache/incubator-devlake/pull/7317","abeizn","github:GithubAccount:1:101256042","",7317,"2024-04-12 05:31:43.000","2024-04-13 05:31:43.000","2024-04-12 06:44:27.000"
+"github:GithubPullRequest:1:1819250574","2024-05-15 12:07:36.778","2024-05-15 12:07:36.778","{""ConnectionId"":1,""Name"":""apache/incubator-devlake""}","_raw_github_api_pull_requests",192,"","github:GithubRepo:1:384111310","main","64c52748f3529784cb6c8a372691aa0f638fa73d","github:GithubRepo:1:384111310","fix#1886","14fb6488f2208e6a65374a86efce12dd460987e0","","MERGED","merged","","","Fix deployment policy recreation","no issue key here","https://github.com/apache/incubator-devlake/pull/7318","abeizn","github:GithubAccount:1:101256042","",7318,"2024-04-12 05:31:43.000","2024-04-13 05:31:43.000","2024-04-12 06:44:27.000"

backend/plugins/linker/tasks/link_pr_and_issue.go

@@ -18,10 +18,11 @@ limitations under the License.
 package tasks
 
 import (
+	"strings"
+
 	"github.com/apache/incubator-devlake/core/models/domainlayer/code"
 	"github.com/apache/incubator-devlake/core/models/domainlayer/crossdomain"
 	"github.com/apache/incubator-devlake/core/models/domainlayer/ticket"
-	"strings"
 
 	"github.com/apache/incubator-devlake/core/dal"
 	"github.com/apache/incubator-devlake/core/errors"
@@ -97,7 +98,7 @@ func LinkPrToIssue(taskCtx plugin.SubTaskContext) errors.Error {
 		Enrich: func(pullRequest *code.PullRequest) ([]interface{}, errors.Error) {
 
 			var issueKeys []string
-			for _, text := range []string{pullRequest.Title, pullRequest.Description} {
+			for _, text := range []string{pullRequest.Title, pullRequest.Description, pullRequest.HeadRef} {
 				foundIssueKeys := data.PrToIssueRegexp.FindAllString(text, -1)
 				if len(foundIssueKeys) > 0 {
 					for _, issueKey := range foundIssueKeys {