src/main/java/com/googlesource/gerrit/plugins/uploadvalidator/ValidatorConfig.java

// Copyright (C) 2017 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.googlesource.gerrit.plugins.uploadvalidator;

import com.google.gerrit.common.data.RefConfigSection;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.server.config.PluginConfig;
import com.google.gerrit.server.project.RefPatternMatcher;
import com.google.inject.Inject;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ValidatorConfig {
  private static final Logger log = LoggerFactory
      .getLogger(ValidatorConfig.class);

  private final ConfigFactory configFactory;

  @Inject
  public ValidatorConfig(ConfigFactory configFactory) {
    this.configFactory = configFactory;
  }

  public boolean isEnabledForRef(Project.NameKey projectName, String refName) {
    PluginConfig pluginConfig = configFactory.get(projectName);
    if (pluginConfig == null) {
      log.error("Failed to check if validation is enabled for project "
          + projectName.get() + ": Plugin config not found");
      return false;
    }
    if(!isValidConfig(pluginConfig, projectName)) {
      return false;
    }

    String[] refPatterns = pluginConfig.getStringList("ref");
    if (refPatterns.length == 0) {
      return true; // Default behavior: no branch-specific config
    }

    for (String refPattern : refPatterns) {
      if (match(refName, refPattern)) {
        return true;
      }
    }
    return false;
  }

  private boolean isValidConfig(PluginConfig config, Project.NameKey projectName) {
    boolean valid = true;
    for (String refPattern : config.getStringList("ref")) {
      if (!RefConfigSection.isValid(refPattern)) {
        log.error(
            "Invalid ref name/pattern/regex '{}' in {} project's plugin config",
            refPattern, projectName.get());
        valid = false;
      }
    }

    return valid;
  }

  private static boolean match(String refName, String refPattern) {
    return RefPatternMatcher.getMatcher(refPattern).match(refName, null);
  }
}