Example usage for org.eclipse.jgit.api.errors DetachedHeadException DetachedHeadException

Introduction

In this page you can find the example usage for org.eclipse.jgit.api.errors DetachedHeadException DetachedHeadException.

Prototype

public DetachedHeadException() 

Source Link

Document

The default constructor with a default message

Usage

From source file:org.flowerplatform.web.git.GitUtils.java

License:Open Source License

@SuppressWarnings("restriction")
public Object[] getFetchPushUpstreamDataRefSpecAndRemote(Repository repository)
        throws InvalidConfigurationException, NoHeadException, DetachedHeadException {

    String branchName;/* ww w .j a v a 2  s  .  co  m*/
    String fullBranch;
    try {
        fullBranch = repository.getFullBranch();
        if (fullBranch == null) {
            throw new NoHeadException(JGitText.get().pullOnRepoWithoutHEADCurrentlyNotSupported);
        }
        if (!fullBranch.startsWith(Constants.R_HEADS)) {
            // we can not pull if HEAD is detached and branch is not
            // specified explicitly
            throw new DetachedHeadException();
        }
        branchName = fullBranch.substring(Constants.R_HEADS.length());
    } catch (IOException e) {
        throw new JGitInternalException(JGitText.get().exceptionCaughtDuringExecutionOfPullCommand, e);
    }
    // get the configured remote for the currently checked out branch
    // stored in configuration key branch.<branch name>.remote
    Config repoConfig = repository.getConfig();
    String remote = repoConfig.getString(ConfigConstants.CONFIG_BRANCH_SECTION, branchName,
            ConfigConstants.CONFIG_KEY_REMOTE);
    if (remote == null) {
        // fall back to default remote
        remote = Constants.DEFAULT_REMOTE_NAME;
    }

    // get the name of the branch in the remote repository
    // stored in configuration key branch.<branch name>.merge
    String remoteBranchName = repoConfig.getString(ConfigConstants.CONFIG_BRANCH_SECTION, branchName,
            ConfigConstants.CONFIG_KEY_MERGE);

    if (remoteBranchName == null) {
        String missingKey = ConfigConstants.CONFIG_BRANCH_SECTION + "." + branchName + "."
                + ConfigConstants.CONFIG_KEY_MERGE;
        throw new InvalidConfigurationException(
                MessageFormat.format(JGitText.get().missingConfigurationForKey, missingKey));
    }

    // check if the branch is configured for pull-rebase
    boolean doRebase = repoConfig.getBoolean(ConfigConstants.CONFIG_BRANCH_SECTION, branchName,
            ConfigConstants.CONFIG_KEY_REBASE, false);

    final boolean isRemote = !remote.equals("."); //$NON-NLS-1$
    String remoteUri;
    if (isRemote) {
        remoteUri = repoConfig.getString(ConfigConstants.CONFIG_REMOTE_SECTION, remote,
                ConfigConstants.CONFIG_KEY_URL);
        if (remoteUri == null) {
            String missingKey = ConfigConstants.CONFIG_REMOTE_SECTION + "." + remote + "."
                    + ConfigConstants.CONFIG_KEY_URL;
            throw new InvalidConfigurationException(
                    MessageFormat.format(JGitText.get().missingConfigurationForKey, missingKey));
        }

        return new Object[] { fullBranch, remoteBranchName, remoteUri, doRebase };
    }
    return null;
}

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