GitLabSCMBranchBuildStrategy.java

package argelbargel.jenkins.plugins.gitlab_branch_source;


import argelbargel.jenkins.plugins.gitlab_branch_source.heads.GitLabSCMBranchHead;
import argelbargel.jenkins.plugins.gitlab_branch_source.heads.GitLabSCMMergeRequestHead;
import hudson.Extension;
import jenkins.branch.BranchBuildStrategy;
import jenkins.branch.BranchBuildStrategyDescriptor;
import jenkins.branch.BranchSource;
import jenkins.scm.api.SCMHead;
import jenkins.scm.api.SCMSource;
import jenkins.scm.api.SCMSourceDescriptor;
import jenkins.scm.api.SCMRevision;
import jenkins.scm.api.mixin.TagSCMHead;
import net.sf.json.JSONObject;
import org.kohsuke.stapler.StaplerRequest;

import javax.annotation.CheckForNull;
import javax.annotation.Nonnull;


public class GitLabSCMBranchBuildStrategy extends BranchBuildStrategy {
    static final GitLabSCMBranchBuildStrategy INSTANCE = new GitLabSCMBranchBuildStrategy();

    @Override
    public boolean isAutomaticBuild(SCMSource source, SCMHead head) {
        if (source instanceof GitLabSCMSource) {
            return isAutomaticBuild((GitLabSCMSource) source, head);
        }

        return !TagSCMHead.class.isInstance(head);
    }

    @SuppressWarnings("SimplifiableIfStatement")
    private boolean isAutomaticBuild(GitLabSCMSource source, SCMHead head) {
        if (head instanceof TagSCMHead) {
            return source.getSourceSettings().getTagMonitorStrategy().getBuild();
        }

        if (head instanceof GitLabSCMBranchHead) {
            return !((GitLabSCMBranchHead) head).hasMergeRequest() || source.getSourceSettings().getBranchMonitorStrategy().getBuildBranchesWithMergeRequests();
        }

        if (head instanceof GitLabSCMMergeRequestHead) {
            return isAutomaticBuild(source, (GitLabSCMMergeRequestHead) head);
        }

        return true;
    }

    @Override
    public boolean isAutomaticBuild(SCMSource source, SCMHead head, SCMRevision var3,  SCMRevision var4)
    {
        if (source instanceof GitLabSCMSource) {
            return isAutomaticBuild((GitLabSCMSource) source, head);
        }

        return !TagSCMHead.class.isInstance(head);
    }

    private boolean isAutomaticBuild(GitLabSCMSource source, GitLabSCMMergeRequestHead head) {
        if (!head.isMerged()) {
            return true;
        }

        if (head.isMergeable()) {
            return true;
        }

        boolean fromOrigin = source.getProjectId() == head.getProjectId();
        return (fromOrigin && !source.getSourceSettings().getOriginMonitorStrategy().getBuildOnlyMergeableMerged()) || (!fromOrigin && !source.getSourceSettings().getForksMonitorStrategy().getBuildOnlyMergeableMerged());
    }

    boolean isApplicable(BranchSource branchSource) {
        return branchSource.getSource() instanceof GitLabSCMSource;
    }

    private GitLabSCMBranchBuildStrategy() { /* singleton */ }

    
    @Extension
    public static class DescriptorImpl extends BranchBuildStrategyDescriptor {
        @Nonnull
        @Override
        public String getDisplayName() {
            return Messages.GitLabSCMBranchBuildStrategy_DisplayName();
        }

        @Override
        public boolean isApplicable(@Nonnull SCMSourceDescriptor sourceDescriptor) {
            // TODO: HACK ALERT! the source configuration will not be displayed correctly (it hangs)
            // when the strategy is listed in the sources configuration. thus we have to disable it here
            return false;
        }

        @Override
        public BranchBuildStrategy newInstance(@CheckForNull StaplerRequest req, @Nonnull JSONObject formData) throws FormException {
            return INSTANCE;
        }
    }
}