build

#!/usr/bin/env python3

import argparse
import os
import os.path
import platform
import re
import stat
import subprocess
import sys
import urllib.request

import yaml


def call(verbose, arguments, **kwargs):
    if verbose:
        print_args = [a.replace(" ", "\\ ") for a in arguments]
        print_args = [a.replace('"', '\\"') for a in print_args]
        print_args = [a.replace("'", "\\'") for a in print_args]
        print(" ".join(print_args))
    subprocess.check_call(arguments, **kwargs)


def load_env(env_files):
    """
    Parse env files and return environment as dict
    """
    env = {}
    for env_file in env_files:
        with open(env_file) as f:
            for line in f:
                if line and line[0] != "#":
                    try:
                        index = line.index("=")
                        env[line[:index].strip()] = line[index + 1 :].strip()
                    except ValueError:
                        # Ignore lines that don't have a '='
                        pass
    return env


def main():
    parser = argparse.ArgumentParser(description="Build the project")
    parser.add_argument("--verbose", help="Display the docker build commands")
    parser.add_argument("--config", action="store_true", help="Build only the configuration image")
    parser.add_argument("--geoportal", action="store_true", help="Build only the geoportal image")
    parser.add_argument("--upgrade", help="Start upgrading the project to version")
    parser.add_argument("env", nargs="*", help="The environment config")
    args = parser.parse_args()

    if args.upgrade:
        version_re = re.search(r"([0-9]\.[0-9])\.[0-9]", args.upgrade)
        major_version = version_re.group(0) if version_re is not None else args.upgrade
        full_version = args.upgrade if args.upgrade != "master" else "2.5"
        with open("upgrade", "w") as f:
            result = urllib.request.urlopen(
                "https://raw.githubusercontent.com/camptocamp/c2cgeoportal/{}/scripts/upgrade".format(
                    major_version
                )
            )
            if result.code != 200:
                print("ERROR:")
                print(result.read())
                sys.exit(1)
            f.write(result.read().decode())
        os.chmod("upgrade", os.stat("upgrade").st_mode | stat.S_IXUSR)
        try:
            if platform.system() == "Windows":
                subprocess.check_call(["python", "upgrade", full_version])
            else:
                subprocess.check_call(["./upgrade", full_version])
        except subprocess.CalledProcessError:
            sys.exit(1)
        sys.exit(0)

    with open("project.yaml") as project_file:
        project_env = yaml.load(project_file, Loader=yaml.SafeLoader)["env"]
    if len(args.env) != project_env["required_args"]:
        print(project_env["help"])
        sys.exit(1)
    env_files = [e.format(*args.env) for e in project_env["files"]]
    print("Use env files: {}".format(", ".join(env_files)))
    for env_file in env_files:
        if not os.path.exists(env_file):
            print("Error: the env file '{}' does not exist.".format(env_file))
            sys.exit(1)
    env = load_env(env_files)

    base = env["DOCKER_BASE"] if "DOCKER_BASE" in env else "camptocamp/package_gmf"
    tag = ":" + env["DOCKER_TAG"] if "DOCKER_TAG" in env else ""
    schema = env["PGSCHEMA"]

    default = not (args.config or args.geoportal)

    if default or args.config:
        call(
            args.verbose,
            [
                "docker",
                "build",
                "--tag={}-config{}".format(base, tag),
                "--build-arg=PGSCHEMA=" + schema,
                ".",
            ],
        )
    if default or args.geoportal:
        git_hash = subprocess.check_output(["git", "rev-parse", "HEAD"]).strip().decode()
        call(
            args.verbose,
            [
                "docker",
                "build",
                "--tag={}-geoportal{}".format(base, tag),
                "--build-arg=PGSCHEMA=" + schema,
                "--build-arg=GIT_HASH=" + git_hash,
                "geoportal",
            ],
        )
        call(
            args.verbose,
            [
                "docker",
                "build",
                "--target=builder",
                "--tag={}-geoportal-dev{}".format(base, tag),
                "geoportal",
            ],
        )

    with open(".env", "w") as dest:
        for file_ in env_files:
            with open(file_) as src:
                dest.write(src.read() + "\n")
        dest.write("# Used env files: {}\n".format(" ".join(env_files)))


if __name__ == "__main__":
    main()