feat: add DEFAULT_MERGE_STYLE to `repository.pull-request` section for repo init (#19751)

custom/conf/app.example.ini

@@ -948,6 +948,9 @@ PATH =
 ;; List of keywords used in Pull Request comments to automatically reopen a related issue
 ;REOPEN_KEYWORDS = reopen,reopens,reopened
 ;;
+;; Set default merge style for repository creating, valid options: merge, rebase, rebase-merge, squash
+;DEFAULT_MERGE_STYLE = merge
+;;
 ;; In the default merge message for squash commits include at most this many commits
 ;DEFAULT_MERGE_MESSAGE_COMMITS_LIMIT = 50
 ;;

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

@@ -92,6 +92,7 @@ Values containing `#` or `;` must be quoted using `` ` `` or `"""`.
  keywords used in Pull Request comments to automatically close a related issue
 - `REOPEN_KEYWORDS`: **reopen**, **reopens**, **reopened**: List of keywords used in Pull Request comments to automatically reopen
  a related issue
+- `DEFAULT_MERGE_STYLE`: **merge**: Set default merge style for repository creating, valid options: `merge`, `rebase`, `rebase-merge`, `squash`
 - `DEFAULT_MERGE_MESSAGE_COMMITS_LIMIT`: **50**: In the default merge message for squash commits include at most this many commits. Set to `-1` to include all commits
 - `DEFAULT_MERGE_MESSAGE_SIZE`: **5120**: In the default merge message for squash commits limit the size of the commit messages. Set to `-1` to have no limit. Only used if `POPULATE_SQUASH_COMMENT_WITH_COMMIT_MESSAGES` is `true`.
 - `DEFAULT_MERGE_MESSAGE_ALL_AUTHORS`: **false**: In the default merge message for squash commits walk all commits to include all authors in the Co-authored-by otherwise just use those in the limited list

models/repo.go

@@ -373,7 +373,7 @@ func CreateRepository(ctx context.Context, doer, u *user_model.User, repo *repo_
 			units = append(units, repo_model.RepoUnit{
 				RepoID: repo.ID,
 				Type:   tp,
-				Config: &repo_model.PullRequestsConfig{AllowMerge: true, AllowRebase: true, AllowRebaseMerge: true, AllowSquash: true, DefaultMergeStyle: repo_model.MergeStyleMerge, AllowRebaseUpdate: true},
+				Config: &repo_model.PullRequestsConfig{AllowMerge: true, AllowRebase: true, AllowRebaseMerge: true, AllowSquash: true, DefaultMergeStyle: repo_model.MergeStyle(setting.Repository.PullRequest.DefaultMergeStyle), AllowRebaseUpdate: true},
 			})
 		} else {
 			units = append(units, repo_model.RepoUnit{

models/repo/repo_unit.go

@@ -11,6 +11,7 @@ import (
 	"code.gitea.io/gitea/models/db"
 	"code.gitea.io/gitea/models/unit"
 	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/timeutil"
 
 	"xorm.io/xorm"
@@ -148,6 +149,10 @@ func (cfg *PullRequestsConfig) GetDefaultMergeStyle() MergeStyle {
 		return cfg.DefaultMergeStyle
 	}
 
+	if setting.Repository.PullRequest.DefaultMergeStyle != "" {
+		return MergeStyle(setting.Repository.PullRequest.DefaultMergeStyle)
+	}
+
 	return MergeStyleMerge
 }
 

modules/setting/repository.go

@@ -71,6 +71,7 @@ var (
 			WorkInProgressPrefixes                   []string
 			CloseKeywords                            []string
 			ReopenKeywords                           []string
+			DefaultMergeStyle                        string
 			DefaultMergeMessageCommitsLimit          int
 			DefaultMergeMessageSize                  int
 			DefaultMergeMessageAllAuthors            bool
@@ -192,6 +193,7 @@ var (
 			WorkInProgressPrefixes                   []string
 			CloseKeywords                            []string
 			ReopenKeywords                           []string
+			DefaultMergeStyle                        string
 			DefaultMergeMessageCommitsLimit          int
 			DefaultMergeMessageSize                  int
 			DefaultMergeMessageAllAuthors            bool
@@ -205,6 +207,7 @@ var (
 			// https://help.github.com/articles/closing-issues-via-commit-messages
 			CloseKeywords:                            strings.Split("close,closes,closed,fix,fixes,fixed,resolve,resolves,resolved", ","),
 			ReopenKeywords:                           strings.Split("reopen,reopens,reopened", ","),
+			DefaultMergeStyle:                        "merge",
 			DefaultMergeMessageCommitsLimit:          50,
 			DefaultMergeMessageSize:                  5 * 1024,
 			DefaultMergeMessageAllAuthors:            false,

routers/install/install.go

@@ -456,6 +456,8 @@ func SubmitInstall(ctx *context.Context) {
 	cfg.Section("log").Key("ROOT_PATH").SetValue(form.LogRootPath)
 	cfg.Section("log").Key("ROUTER").SetValue("console")
 
+	cfg.Section("repository.pull-request").Key("DEFAULT_MERGE_STYLE").SetValue("merge")
+
 	cfg.Section("repository.signing").Key("DEFAULT_TRUST_MODEL").SetValue("committer")
 
 	cfg.Section("security").Key("INSTALL_LOCK").SetValue("true")