SVNKit API to work with ~/.subversion/ configuration area.

Test.java

package org.tmatesoft.svn.util;

import java.io.File;
import java.util.Arrays;

import org.tmatesoft.svn.core.SVNException;
import org.tmatesoft.svn.core.SVNURL;
import org.tmatesoft.svn.core.internal.wc.DefaultSVNAuthenticationManager;
import org.tmatesoft.svn.core.internal.wc.DefaultSVNHostOptionsProvider;
import org.tmatesoft.svn.core.internal.wc.DefaultSVNOptions;
import org.tmatesoft.svn.core.internal.wc.ISVNHostOptionsProvider;
import org.tmatesoft.svn.core.internal.wc.SVNCompositeConfigFile;
import org.tmatesoft.svn.core.internal.wc.SVNConfigFile;
import org.tmatesoft.svn.core.internal.wc.SVNFileUtil;
import org.tmatesoft.svn.core.wc.SVNWCUtil;

/**
 * @author <a href="semen.vadishev@svnkit.com">Semen Vadishev</a>
 */
public class Test {

    public static void main(String[] args) throws SVNException {
        DefaultSVNAuthenticationManager manager = (DefaultSVNAuthenticationManager) SVNWCUtil.createDefaultAuthenticationManager();

        // API to work with ~/.subversion/config
        DefaultSVNOptions defaultOptions = manager.getDefaultOptions();

        // API to work with ~/.subversion/servers
        ISVNHostOptionsProvider hostOptionsProvider = manager.getHostOptionsProvider();

        // 1. Get password storage types:
        String[] passwordStorageTypes = defaultOptions.getPasswordStorageTypes();
        System.out.println(Arrays.toString(passwordStorageTypes));

        // Be careful: SVNKit default password storage types != Subversion default password storage types
        // SVNKit doesn't yet support 'kwallet', so this type won't be listed if ~/.subversion/config has no option
        // [auth] password-stores = XXX
        // (or this option is commented)
        
        // To workaround that you may try do the following:
        File configDirectory = SVNWCUtil.getDefaultConfigurationDirectory();
        // Ensure all configuration files exist
        SVNConfigFile.createDefaultConfiguration(configDirectory);
        SVNConfigFile userConfig = new SVNConfigFile(new File(configDirectory, "config"));
        SVNConfigFile systemConfig = new SVNConfigFile(new File(SVNFileUtil.getSystemConfigurationDirectory(), "config"));
        SVNCompositeConfigFile configFile = new SVNCompositeConfigFile(systemConfig, userConfig);
        String passwordStoresValue = configFile.getPropertyValue("auth", "password-stores");

        // Then you may parse passwordStoresValue or use our API.
        if (passwordStoresValue == null) {
            passwordStorageTypes = new String[]{"gnome-keyring", "kwallet", "keychain", "windows-cryptoapi"};
        } else {
            passwordStorageTypes = defaultOptions.getPasswordStorageTypes();
        }
        System.out.println(Arrays.toString(passwordStorageTypes));

        // 2. Get necessary options from ~/.subversion/servers with fallback to ~/.subversion/config options.

        SVNURL url = SVNURL.parseURIEncoded("http://svn.svnkit.com/repos/svnkit");
        hostOptionsProvider.getHostOptions(url).isAuthStorageEnabled();
        hostOptionsProvider.getHostOptions(url).isStorePasswords();
        hostOptionsProvider.getHostOptions(url).isStorePlainTextPasswords(null, null);
        hostOptionsProvider.getHostOptions(url).isStorePlainTextPasswords(null, null);
        // etc.
    }
}