blender-asset-manager/client/cli/bam

#!/usr/bin/env python3
# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
# ***** END GPL LICENCE BLOCK *****

"""
Blender asset manager
"""

# TODO
# * checkout command (store some handy json info!)
# * commit command
# ** staging for svn commit
# ** svn commit
# ** handle errors
# * definition of project (.bam (like .git)) ... json



class bam_utils:
    # fake module
    __slots__ = ()
    def __new__(cls, *args, **kwargs):
        raise RuntimeError("%s should not be instantiated" % cls)

    @staticmethod
    def session_find_url():
        return "http://localhost:5000"

    @staticmethod
    def session_request_url(req_path):
        # TODO, get from config
        BAM_SERVER = "http://localhost:5000"
        result = "%s/%s" % (BAM_SERVER, req_path)
        return result

    @staticmethod
    def checkout(paths):
        import sys
        import requests

        # TODO(cam) multiple paths
        path = paths[0]
        del paths

        payload = {
            "filepath": path,
            "command": "checkout",
            }
        r = requests.get(
                bam_utils.session_request_url("file"),
                params=payload,
                auth=("bam", "bam"),
                stream=True,
                )

        if r.status_code not in {200,}:
            # TODO(cam), make into reusable function?
            print("Error %d:\n%s" % (r.status_code, next(r.iter_content(chunk_size=1024)).decode('utf-8')))
            return

        # TODO(cam) how to tell if we get back a message payload? or real data???
        local_filename = payload['filepath'].split('/')[-1]

        if 1:
            local_filename += ".zip"

        with open(local_filename, 'wb') as f:
            for chunk in r.iter_content(chunk_size=1024):
                if chunk: # filter out keep-alive new chunks
                    f.write(chunk)
                    f.flush()

                    sys.stdout.write(".")
                    sys.stdout.flush()

        print("Written:", local_filename)

    @staticmethod
    def list_dir(paths):
        import sys
        import requests

        path = paths[0]
        del paths

        # TODO(cam) multiple paths
        payload = {
            "path": path,
            }
        r = requests.get(
                bam_utils.session_request_url("file_list"),
                params=payload,
                auth=("bam", "bam"),
                stream=True,
                )

        items = r.json().get("items_list", ())

        for (name_short, name_full, file_type) in items:
            if file_type == "dir":
                print("  %s/" % name_short)
        for (name_short, name_full, file_type) in items:
            if file_type != "dir":
                print("  %s" % name_short)

def subcommand_checkout_cb(args):
    bam_utils.checkout(args.paths)

def subcommand_commit_cb(args):
    print(args)


def subcommand_update_cb(args):
    print(args)


def subcommand_revert_cb(args):
    print(args)


def subcommand_list_cb(args):
    bam_utils.list_dir(args.paths)


def subcommand_status_cb(args):
    print(args)


def create_argparse_checkout(subparsers):
    subparse = subparsers.add_parser("checkout", aliases=("co",))
    subparse.add_argument(
            "paths", nargs="*", help="Path(s) to operate on",
            )
    subparse.set_defaults(func=subcommand_checkout_cb)



def create_argparse_commit(subparsers):
    subparse = subparsers.add_parser("commit", aliases=("ci",))
    subparse.add_argument(
            "-m", "--message", dest="message", metavar='MESSAGE',
            help="Commit message",
            )
    subparse.add_argument(
            "paths", nargs="*", help="paths to commit",
            )

    subparse.set_defaults(func=subcommand_commit_cb)


def create_argparse_update(subparsers):
    subparse = subparsers.add_parser("update", aliases=("up",))
    subparse.add_argument(
            "paths", nargs="*", help="Path(s) to operate on",
            )
    subparse.set_defaults(func=subcommand_update_cb)


def create_argparse_revert(subparsers):
    subparse = subparsers.add_parser("update", aliases=("up",))
    subparse.add_argument(
            "paths", nargs="*", help="Path(s) to operate on",
            )
    subparse.set_defaults(func=subcommand_revert_cb)



def create_argparse_status(subparsers):
    subparse = subparsers.add_parser("status", aliases=("st",))
    subparse.add_argument(
            "paths", nargs="*", help="Path(s) to operate on",
            )
    subparse.set_defaults(func=subcommand_status_cb)


def create_argparse_list(subparsers):
    subparse = subparsers.add_parser("list", aliases=("ls",))
    subparse.add_argument(
            "paths", nargs="*", help="Path(s) to operate on",
            )
    subparse.set_defaults(func=subcommand_list_cb)




def create_argparse():
    import os
    import argparse

    usage_text = (
        "BAM! (Blender Asset Manager)\n" +
        __doc__
        )

    parser = argparse.ArgumentParser(description=usage_text)

    subparsers = parser.add_subparsers(
            title='subcommands',
            description='valid subcommands',
            help='additional help')

    create_argparse_checkout(subparsers)
    create_argparse_commit(subparsers)
    create_argparse_update(subparsers)
    create_argparse_revert(subparsers)
    create_argparse_status(subparsers)
    create_argparse_list(subparsers)

    return parser


def main():
    import sys

    parser = create_argparse()
    args = parser.parse_args(sys.argv[1:])

    # call subparser callback
    args.func(args)


if __name__ == "__main__":
    main()