liquibase.command.copy.FileSystemProjectCopier Maven / Gradle / Ivy

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There is a newer version: 4.31.1

package liquibase.command.copy;

import liquibase.exception.UnexpectedLiquibaseException;
import org.apache.commons.io.IOUtils;

import java.io.*;
import java.nio.file.Files;
import java.nio.file.Paths;

public class FileSystemProjectCopier implements ProjectCopier {
    @Override
    public int getPriority(String path) {
        if (path == null) {
            return PRIORITY_NOT_APPLICABLE;
        }

        if (path.startsWith("/") || !path.contains(":")) {
            return PRIORITY_DEFAULT;
        }

        if (path.startsWith("file:") || path.matches("^[A-Za-z]:.*")) {
            return PRIORITY_DEFAULT;
        }
        return PRIORITY_NOT_APPLICABLE;
    }

    @Override
    public boolean isRemote() {
        return false;
    }

    /**
     * Create the project directory if it does not exist
     * For the local file system implementation of ProjectCopier this will not
     * be a temporary directory, so the keepTempFiles flag is ignored
     *
     * @param projectDir    The project directory
     * @param keepTempFiles *** IGNORED ***
     * @return File
     */
    @Override
    public File createWorkingStorage(String projectDir, boolean keepTempFiles) {
        File projectDirFile = new File(projectDir);
        boolean b = projectDirFile.mkdirs();
        if (!b && !projectDirFile.exists()) {
            throw new UnexpectedLiquibaseException("Unable to create project directory '" + projectDir + "'");
        }
        return projectDirFile;
    }

    /**
     * Copy files from the source to the remote location
     * This is a no-op currently for this implementation of ProjectCopier
     *
     * @param source    The source directory
     * @param target    The target directory
     * @param recursive Flag for copying recursively
     */
    @Override
    public void copy(String source, String target, boolean recursive) {
        try (InputStream input = Files.newInputStream(Paths.get(source));
             OutputStream output = Files.newOutputStream(Paths.get(target))) {
            IOUtils.copyLarge(input, output);
        } catch (Exception e) {
            throw new UnexpectedLiquibaseException("Unable to copy file(s)! Make sure you are targeting a valid path for the new file.", e);
        }
    }
}