run.py

import shutil, os.path, json, datetime, re, glob, requests, os
import subprocess as sp

INTERNAL_DATE_FORMAT = "%Yw%W"
VERSION_PATTERN = r"<version>(.*)</version>"

DEPLOY_ITEMS = ("examples", "matsim", "contribs", ) # do not delete that dangling comma or it will not work if there's only one entry

# Default values
state = {
    "last_release_commit" : "unknown",
    "last_release_date" : "1990w00"
}

# Check if state is there and load it if so
if os.path.exists("state.json"):
    with open("state.json") as f:
        state.update(json.load(f))

# Clean up MATSim
if os.path.exists("matsim-libs"):
    print("Deleting old checkout ...")
    shutil.rmtree("matsim-libs")

# Clone MATSim
sp.check_call(["git", "clone", "--depth", "1", "https://github.com/matsim-org/matsim-libs.git"])

# Find current commit
current_commit = sp.check_output(["git", "rev-parse", "HEAD"], cwd = "matsim-libs").decode("utf-8").strip()

print("Current commit is:", current_commit)

last_release_date = datetime.datetime.strptime(state["last_release_date"], INTERNAL_DATE_FORMAT)
current_date = datetime.datetime.today().strftime(INTERNAL_DATE_FORMAT)

# We neither need a new release if the day has not passed yet, nor if there have
# not been any changes since the last release
if not current_date == last_release_date:
    if not current_commit == state["last_release_commit"]:
        # At this point a new release is requested

        with open("matsim-libs/pom.xml") as f:
            match = re.search(VERSION_PATTERN, f.read())
            current_version = match.group(1)

        if not current_version.endswith("-SNAPSHOT"):
            raise RuntimeError("The commit checked out from github does not include a SNAPSHOT version!")

        updated_version = current_version.replace("-SNAPSHOT", "-" + current_date)

        current_version_string = "<version>%s</version>" % current_version
        updated_version_string = "<version>%s</version>" % updated_version

        print("SNAPSHOT version is:", current_version)
        print("Updated (weekly) version is:", updated_version)
        print("Current commit is:", current_commit, flush=True)

        # check URL in following form: https://repo.matsim.org/repository/matsim/org/matsim/matsim/13.0/matsim-13.0.jar.md5
        # check for the .md5 file as this is known to be small, in the case it already exists
        result = requests.get("https://repo.matsim.org/repository/matsim/org/matsim/matsim/" + updated_version + "/matsim-" + updated_version + ".jar.md5")

        if not result.status_code == 404:
            raise RuntimeError("Version already exists or could not get informaton from Maven repository " + str(result.status_code))

        sp.check_call(["mvn", "versions:set", "-DnewVersion="+updated_version, "-DoldVersion=*", "-DgroupId=*", "-DartifactId=*"], cwd = "matsim-libs")

        print("Installing maven artifacts ...", flush=True)
        sp.check_call([
            "mvn", "install", "--batch-mode", "--fail-at-end",
            "-Dmaven.test.redirectTestOutputToFile",
            "-Dmatsim.preferLocalDtds=true"], cwd = "matsim-libs")

        print("Deploying maven artifacts ...", flush=True)
        # deploy non-recursively the parent project
        sp.check_call([
            "mvn", "deploy", "--batch-mode", "--fail-at-end",
            "--settings", "../settings.xml",
            "-DskipTests=true", "--non-recursive"], cwd = "matsim-libs")
        # deploy selected sub-projects
        for item in DEPLOY_ITEMS:
            sp.check_call([
                "mvn", "deploy", "--batch-mode", "--fail-at-end",
                "--settings", "../../settings.xml",
                "-DskipTests=true"], cwd = "matsim-libs/%s" % item)

        with open("state.json", "w+") as f:
            state["last_release_commit"] = current_commit
            state["last_release_date"] = current_date
            json.dump(state, f)

        print("Published version:", updated_version)
    else:
        print("No changes since last release -> no new release necessary")
else:
    print("You're too early. The day has not passed.")

#