Support to configure default submit type for newly created projects

Bug: issue 2257
Change-Id: If65a15c1f2928d26ffb2ab6fb12acbdc9b2cdda8
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

Documentation/cmd-create-project.txt

@@ -115,8 +115,11 @@ Description values containing spaces should be quoted in single quotes
 * CHERRY_PICK: always cherry-pick the commit.
 
 +
-Defaults to MERGE_IF_NECESSARY.  For more details see
-link:project-setup.html#submit_type[Change Submit Actions].
+Defaults to MERGE_IF_NECESSARY unless
+link:config-gerrit.html#repository.name.defaultSubmitType[
+repository.<name>.defaultSubmitType] is set to a different value.
+For more details see link:project-setup.html#submit_type[
+Change Submit Actions].
 
 --use-content-merge::
 	If enabled, Gerrit will try to perform a 3-way merge of text

Documentation/config-gerrit.txt

@@ -2323,6 +2323,14 @@ to be the default owner of new projects.
 Currently only the repository name `*` is supported.
 This is a wildcard designating all repositories.
 
+[[repository.name.defaultSubmitType]]repository.<name>.defaultSubmitType::
++
+The default submit type for newly created projects. Supported values
+are `MERGE_IF_NECESSARY`, `FAST_FORWARD_ONLY`, `REBASE_IF_NECESSARY`,
+`MERGE_ALWAYS` and `CHERRY_PICK`.
++
+By default, `MERGE_IF_NECESSARY`.
+
 [[repository.name.ownerGroup]]repository.<name>.ownerGroup::
 +
 A name of a group which exists in the database. Zero, one or many

Documentation/rest-api-projects.txt

@@ -1478,7 +1478,9 @@ Whether an empty initial commit should be created.
 The submit type that should be set for the project
 (`MERGE_IF_NECESSARY`, `REBASE_IF_NECESSARY`, `FAST_FORWARD_ONLY`,
 `MERGE_ALWAYS`, `CHERRY_PICK`). +
-If not set, `MERGE_IF_NECESSARY` is set as submit type.
+If not set, `MERGE_IF_NECESSARY` is set as submit type unless
+link:config-gerrit.html#repository.name.defaultSubmitType[
+repository.<name>.defaultSubmitType] is set to a different value.
 |`branches`                  |optional|
 A list of branches that should be initially created. +
 For the branch names the `refs/heads/` prefix can be omitted.

gerrit-server/src/main/java/com/google/gerrit/server/project/CreateProject.java

@@ -101,8 +101,7 @@ public class CreateProject implements RestModifyView<TopLevelResource, Input> {
     args.createEmptyCommit = input.createEmptyCommit;
     args.permissionsOnly = input.permissionsOnly;
     args.projectDescription = Strings.emptyToNull(input.description);
-    args.submitType =
-        Objects.firstNonNull(input.submitType, SubmitType.MERGE_IF_NECESSARY);
+    args.submitType = input.submitType;
     args.branch = input.branches;
     if (input.owners != null) {
       List<AccountGroup.UUID> ownerIds =

gerrit-server/src/main/java/com/google/gerrit/server/project/PerformCreateProject.java

@@ -14,6 +14,7 @@
 
 package com.google.gerrit.server.project;
 
+import com.google.common.base.Objects;
 import com.google.gerrit.common.ProjectUtil;
 import com.google.gerrit.common.data.AccessSection;
 import com.google.gerrit.common.data.GroupDescription;
@@ -25,9 +26,11 @@ import com.google.gerrit.extensions.events.NewProjectCreatedListener;
 import com.google.gerrit.extensions.registration.DynamicSet;
 import com.google.gerrit.reviewdb.client.AccountGroup;
 import com.google.gerrit.reviewdb.client.Project;
+import com.google.gerrit.reviewdb.client.Project.SubmitType;
 import com.google.gerrit.server.GerritPersonIdent;
 import com.google.gerrit.server.IdentifiedUser;
 import com.google.gerrit.server.account.GroupBackend;
+import com.google.gerrit.server.config.GerritServerConfig;
 import com.google.gerrit.server.config.ProjectOwnerGroups;
 import com.google.gerrit.server.extensions.events.GitReferenceUpdated;
 import com.google.gerrit.server.git.GitRepositoryManager;
@@ -40,6 +43,7 @@ import com.google.inject.assistedinject.Assisted;
 import org.eclipse.jgit.errors.ConfigInvalidException;
 import org.eclipse.jgit.errors.RepositoryNotFoundException;
 import org.eclipse.jgit.lib.CommitBuilder;
+import org.eclipse.jgit.lib.Config;
 import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.lib.ObjectId;
 import org.eclipse.jgit.lib.ObjectInserter;
@@ -66,6 +70,7 @@ public class PerformCreateProject {
     PerformCreateProject create(CreateProjectArgs createProjectArgs);
   }
 
+  private final Config cfg;
   private final Set<AccountGroup.UUID> projectOwnerGroups;
   private final IdentifiedUser currentUser;
   private final GitRepositoryManager repoManager;
@@ -78,13 +83,15 @@ public class PerformCreateProject {
   private final MetaDataUpdate.User metaDataUpdateFactory;
 
   @Inject
-  PerformCreateProject(@ProjectOwnerGroups Set<AccountGroup.UUID> pOwnerGroups,
+  PerformCreateProject(@GerritServerConfig Config cfg,
+      @ProjectOwnerGroups Set<AccountGroup.UUID> pOwnerGroups,
       IdentifiedUser identifiedUser, GitRepositoryManager gitRepoManager,
       GitReferenceUpdated referenceUpdated,
       DynamicSet<NewProjectCreatedListener> createdListener,
       @GerritPersonIdent PersonIdent personIdent, GroupBackend groupBackend,
       MetaDataUpdate.User metaDataUpdateFactory,
       @Assisted CreateProjectArgs createPArgs, ProjectCache pCache) {
+    this.cfg = cfg;
     this.projectOwnerGroups = pOwnerGroups;
     this.currentUser = identifiedUser;
     this.repoManager = gitRepoManager;
@@ -179,7 +186,8 @@ public class PerformCreateProject {
 
       Project newProject = config.getProject();
       newProject.setDescription(createProjectArgs.projectDescription);
-      newProject.setSubmitType(createProjectArgs.submitType);
+      newProject.setSubmitType(Objects.firstNonNull(createProjectArgs.submitType,
+          cfg.getEnum("repository", "*", "defaultSubmitType", SubmitType.MERGE_IF_NECESSARY)));
       newProject
           .setUseContributorAgreements(createProjectArgs.contributorAgreements);
       newProject.setUseSignedOffBy(createProjectArgs.signedOffBy);

gerrit-sshd/src/main/java/com/google/gerrit/sshd/commands/CreateProjectCommand.java

@@ -63,9 +63,8 @@ final class CreateProjectCommand extends SshCommand {
   @Option(name = "--description", aliases = {"-d"}, metaVar = "DESCRIPTION", usage = "description of project")
   private String projectDescription = "";
 
-  @Option(name = "--submit-type", aliases = {"-t"}, usage = "project submit type\n"
-      + "(default: MERGE_IF_NECESSARY)")
-  private SubmitType submitType = SubmitType.MERGE_IF_NECESSARY;
+  @Option(name = "--submit-type", aliases = {"-t"}, usage = "project submit type")
+  private SubmitType submitType;
 
   @Option(name = "--contributor-agreements", usage = "if contributor agreement is required")
   private InheritableBoolean contributorAgreements = InheritableBoolean.INHERIT;