qaviton-package-manager 2019.10.16.7.6.8.502905

a package manager for git projects with private repositories

Qaviton Package Manager

Qaviton Package Manager (qpm)
is a package management tool integrated with git.
to enable management of packages both public & private,
from git repositories, in addition to the standard package manager.

Replace redundant packaging systems using qpm:
Package everything using git tags:

>qpm --build
         |
branch: dev
         |
branch: tests
         |  
[tag 2019.9.1] 
         |
[tag 2019.9.2]
         |
branch: release/latest


>qpm --install "git+https://url/owner/project.git@release/latest#egg=package:>=2019.9.2"
  |       |      |   |           |                     |             |              |
qaviton install vcs+protocol://project_url          @branch   #egg=package      (optional) 
package method  type                                              directory   pep-440 pep-508
manager                                                             path     :version_specifier

Installation

pip install --upgrade qaviton_package_manager

Requirements

• git 2.16+
• Python 3.6+

Features

• CI CD workflow ✓
• managing private+public packages ✓
• managing nested private packages ✓
• cli + scripting ✓
• pip capabilities ✓
• git capabilities ✓
• pypi capabilities ✓
• automatic builds ✓
• secure credentials ✓
• cross-platform ✓
• nested/multiple packages ✗
• pip -e installs ✗ (coming soon)
• docker build ✗ (but can be used with the run function)
• docker push ✗ (but can be used with the run function)

Usage

creating a manager:

(venv) windows> qpm ^
--create ^
--url "https://github.com/owner/project.git" ^
--username "user1" ^
--password "pass@#$" ^
--email "[e-mail]" ^
--pypi_user "supasayajin" ^
--pypi_pass "final space" 

(venv) bash$ qpm  \
--create  \
--url "https://github.com/owner/project.git"  \
--username "user1"  \
--password "pass@#$"  \
--email "[e-mail]"  \
--pypi_user "supasayajin"  \
--pypi_pass "final space"  \
/

this should leave you with the following project structure:

project/
  ├ package/
  │   └ __init__.py  # with __author__, __version__, __author_email__, __description__, __url__, __license__
  ├ tests/
  │   └ __init__.py
  ├ .gitignore
  ├ LICENSE 
  ├ README.md
  ├ requirements.txt
  ├ requirements-test.txt
  ├ setup.py
  └ package.py  # ignored by .gitignore

now let's build a package:

# package.py
from qaviton_package_manager import Manager
from qaviton_package_manager import decypt

# if this is not secure enough, you can add cache_timeout=3600 
# and store credentials in memory
# manager = Manager(cache_timeout=3600)  
# and we need to insert the credentials in run time: > python package.py --username "x"  --password "z"
manager = Manager(**decypt(
    key=b'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx==',
    token=b'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx==',
))


if __name__ == "__main__":
    # running with lambdas will protect you from processes getting stuck
    manager.run(
        lambda: manager.update(), # pip install -r requirements.txt --upgrade
        lambda: manager.update_test(), # pip install -r requirements-test.txt --upgrade
        lambda: manager.test(), # python -m pytest --junitxml=test_report.xml tests
        lambda: manager.build(), # git commit, tag & push (internal logic is more complicated)
        lambda: manager.upload(), # upload to pypi
    )

make sure you have at list 1 passing test for your package

# tests/my_package_test.py
def test_with_100p_coverage():
    print("testing my package!\nPASS")

# we can now create a package
python package.py

CLI:

we can call any method and send any parameter to the manager through cli:

# release a version if all tests pass
qpm --username "" --password "" --update --update_test --test --build --upload

# build a stable version if all tests pass
qpm --username "" --password "" --update --update_test --test --build "stable/latest"

# install cachetools using pip and save the requirement in requirements.txt
qpm --install cachetools

# cache credentials in memory
qpm --username "" --password "" --cache_timeout "-1"

# using the system & python to execute tests
qpm --test "system" "echo success" --test "python" "-c" "print(\"py success\");"

Script:

# ci_cd.py
from qaviton_processes import run, escape, python
from package import manager
from datetime import datetime


d = datetime.utcnow()
docker_url = manager.vars['docker_url']
docker_user = manager.vars['docker_user']
docker_pass = manager.vars['docker_pass']
docker_email = manager.vars['docker_email']
SSH_PRIVATE_KEY = manager.kwargs['SSH_PRIVATE_KEY']
docker_tag = manager.kwargs['docker_tag']
branch_build = "ci_cd/latest"
dev_branch = "dev"

manager.run(
    lambda: manager.should_build(from_branch=dev_branch, to_branch=branch_build),
    lambda: manager.install(),
    lambda: manager.install_test(),
    lambda: manager.test.pytest("tests/ci_cd"),
    lambda: manager.build(to_branch=branch_build, version=f'{d.year}.{d.month}.{d.day}'),
    # docker distribute
    lambda: run(f"docker login --username=\"{escape(docker_user)}\" --password=\"{escape(docker_pass)}\" --email=\"{escape(docker_email)}\" \"{escape(docker_url)}\""),
    lambda: run(f"docker build --force-rm -t test-multi-stage-builds --build-arg SSH_PRIVATE_KEY=\"{escape(SSH_PRIVATE_KEY)}\" ."),
    lambda: run(f"docker tag {docker_tag} yourhubusername/verse_gapminder:firsttry"),
    lambda: run("docker push yourhubusername/verse_gapminder"),
    # deploy script
    lambda: python("deploy.py")    
)

# schedualer.py
from time import time, sleep
from datetime import datetime, timedelta
from qaviton_processes import python_code_async

d = datetime.utcnow()
date = datetime(year=d.year, month=d.month, day=d.day, hour=22)
delta = timedelta(days=1)

# build a package once a day at 22pm
while True:
    python_code_async('import ci_cd')
    date += delta
    sleep(date.timestamp()-time())

warnings

• this manager is meant for automated ci cd purposes
  and should not be used instead of regular git commit/push/merge.
  make sure to avoid using it on unstable branches
  to avoid failed packaging requests or potential data loss.
  we recommend using it from a CI CD dedicated branch.

• the manager defaults to encrypted credentials,
  if encrypted credentials on the disk are not secure enough,
  please make sure to enable caching, to store credentials in memory