This nifty little script allows for TAs of CMSC131/CMSC132 at UMD to convert student project submissions (distributed from submit server) into actual Eclipse projects, that can be then imported into an Eclipse Workspace without any trouble.

convert_submissions_to_projects.py

#!/usr/bin/python3
import sys
import os
import re
import shutil

PROJECT_TEMPLATE = (
        "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
        "<projectDescription>\n" +
        "	<name>INSERT_NAME_HERE</name>\n" +
        "	<comment></comment>\n" +
        "	<projects>\n" +
        "	</projects>\n" +
        "	<buildSpec>\n" +
        "		<buildCommand>\n" +
        "			<name>org.eclipse.jdt.core.javabuilder</name>\n" +
        "			<arguments>\n" +
        "			</arguments>\n" +
        "		</buildCommand>\n" +
        "	</buildSpec>\n" +
        "	<natures>\n" +
        "		<nature>org.eclipse.jdt.core.javanature</nature>\n" +
        "	</natures>\n" +
        "</projectDescription>\n"
)

CLASSPATH_TEMPLATE = (
        "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
        "<classpath>\n" +
        "	<classpathentry kind=\"con\" path=\"org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-13\">\n" +
        "		<attributes>\n" +
        "			<attribute name=\"module\" value=\"true\"/>\n" +
        "		</attributes>\n" +
        "	</classpathentry>\n" +
        "	<classpathentry kind=\"src\" path=\"src\"/>\n" +
        "	<classpathentry kind=\"output\" path=\"bin\"/>\n" +
        "</classpath>\n"
)


def main():
    listing = os.listdir(".")
    for entry in listing:
        if os.path.isdir(entry) and entry != ".idea" and entry != ".metadata" and entry != "GradingTest" \
                and not entry.startswith("OnlineTest"):
            directory_id = re.search(r"^\w+", entry).group(0)

            eclipse_project_folder = "OnlineTest_" + directory_id
            if os.path.exists(eclipse_project_folder):
                shutil.rmtree(eclipse_project_folder)
            os.mkdir(eclipse_project_folder)
            src_folder = os.path.join(eclipse_project_folder, "src")
            os.mkdir(src_folder)
            os.mkdir(os.path.join(eclipse_project_folder, "bin"))
            for directory, _, filenames in os.walk(entry):
                for filename in filenames:
                    file_path = os.path.join(directory, filename)
                    contents = open(file_path).readlines()
                    package = None
                    for line in contents:
                        if line.startswith("package"):
                            match = re.search(r"^\s*package\s*(\w+(?:\.\w+)*);", line)
                            if match is not None:
                                package = match.group(1)
                                break
                    if package is not None:
                        subdirectories = package.split(".")
                        directory_in_project = os.path.join(src_folder, os.path.join(*subdirectories))
                        if not os.path.exists(directory_in_project):
                            os.makedirs(directory_in_project)
                        shutil.copy(file_path, os.path.join(directory_in_project, filename))

            project_file = open(os.path.join(eclipse_project_folder, ".project"), 'w')
            project_file_contents = PROJECT_TEMPLATE.replace("INSERT_NAME_HERE", eclipse_project_folder)
            project_file.write(project_file_contents)
            project_file.close()

            classpath_file = open(os.path.join(eclipse_project_folder, ".classpath"), 'w')
            classpath_file.write(CLASSPATH_TEMPLATE)
            classpath_file.close()
            print("Generated Eclipse project " + eclipse_project_folder + " from folder " + entry)

    return 0


if __name__ == "__main__":
    sys.exit(main())