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tasks.py
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tasks.py
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# flake8: noqa
from __future__ import print_function, unicode_literals
import io
import logging
import os
from invoke import task, run
import pkg_resources
# see urllib3 regarding InsecureRequestWarning and InsecurePlatformWarning
logging.captureWarnings(True)
if not os.getenv('VIRTUAL_ENV'):
if not os.path.exists('.venv'):
run('virtualenv -q --system-site-packages .venv', hide=True)
execfile('.venv/bin/activate_this.py', dict(__file__='.venv/bin/activate_this.py'))
try:
pkg_resources.require('semantic_version')
pkg_resources.require('twine')
pkg_resources.require('wheel')
except pkg_resources.DistributionNotFound:
run('pip -q install -U semantic_version twine wheel', hide=True)
@task
def install_gitflow():
"""Install git-flow if not found"""
if not run('which git-flow', hide=True, warn=True).ok:
run('wget --no-check-certificate -q -O /tmp/gitflow-installer.sh https://raw.github.com/petervanderdoes/gitflow/develop/contrib/gitflow-installer.sh')
run('sudo bash /tmp/gitflow-installer.sh install stable')
run('rm /tmp/gitflow-installer.sh')
@task
def next_release(major=False, minor=False, patch=True):
"""Get next release version (by major, minor or patch)"""
import semantic_version
prev = run('git describe --abbrev=0 --tags', hide=True).stdout
ver = semantic_version.Version(prev)
if major:
return ver.next_major()
if minor:
return ver.next_minor()
if patch:
return ver.next_patch()
return None
@task(install_gitflow)
def start_rel_branch(relver):
"""Start release branch"""
print('start release branch', relver)
run('git flow release start {}'.format(relver), hide=True)
@task(install_gitflow)
def finish_rel_branch(relver):
"""Finish release branch"""
print('finish release branch', relver)
run('git flow release finish --keepremote -F -p -m "version {ver}" {ver}'.format(ver=relver), hide=True)
@task
def package():
"""Package application for release"""
print('packaging application')
run('python setup.py sdist bdist_egg bdist_wheel', hide=True)
def _iter_changelog(changelog):
"""Convert a oneline log iterator to formatted strings.
:param changelog: An iterator of one line log entries like
that given by _iter_log_oneline.
:return: An iterator over (release, formatted changelog) tuples.
"""
first_line = True
current_release = None
prev_msg = None
yield current_release, 'Changelog\n=========\n\n'
for hash, tags, msg in changelog:
if prev_msg is None:
prev_msg = msg
else:
if prev_msg.lower() == msg.lower():
continue
else:
prev_msg = msg
if tags:
current_release = max(tags, key=pkg_resources.parse_version)
underline = len(current_release) * '-'
if not first_line:
yield current_release, '\n'
yield current_release, (
'%(tag)s\n%(underline)s\n\n' %
dict(tag=current_release, underline=underline))
if not msg.startswith('Merge '):
if msg.endswith('.'):
msg = msg[:-1]
yield current_release, '* %(msg)s\n' % dict(msg=msg)
first_line = False
def _iter_log_inner(debug):
"""Iterate over --oneline log entries.
This parses the output intro a structured form but does not apply
presentation logic to the output - making it suitable for different
uses.
:return: An iterator of (hash, tags_set, 1st_line) tuples.
"""
if debug:
print('Generating ChangeLog')
changelog = run('git log --oneline --decorate', hide=True).stdout.strip().decode('utf-8', 'replace')
for line in changelog.split('\n'):
line_parts = line.split()
if len(line_parts) < 2:
continue
# Tags are in a list contained in ()'s. If a commit
# subject that is tagged happens to have ()'s in it
# this will fail
if line_parts[1].startswith('(') and ')' in line:
msg = line.split(')')[1].strip()
else:
msg = ' '.join(line_parts[1:])
if 'tag:' in line:
tags = set([
tag.split(',')[0]
for tag in line.split(')')[0].split('tag: ')[1:]])
else:
tags = set()
yield line_parts[0], tags, msg
def _iter_log_oneline(debug):
"""Iterate over --oneline log entries if possible.
This parses the output into a structured form but does not apply
presentation logic to the output - making it suitable for different
uses.
"""
return _iter_log_inner(debug)
@task
def write_changelog(debug=False):
"""Write a changelog based on the git changelog."""
changelog = _iter_log_oneline(debug)
if changelog:
changelog = _iter_changelog(changelog)
if not changelog:
return
if debug:
print('Writing ChangeLog')
new_changelog = os.path.join(os.path.curdir, 'ChangeLog')
# If there's already a ChangeLog and it's not writable, just use it
if (os.path.exists(new_changelog)
and not os.access(new_changelog, os.W_OK)):
return
with io.open(new_changelog, 'w', encoding='utf-8') as changelog_file:
for release, content in changelog:
changelog_file.write(content)
@task
def prepare_release(ver=None):
"""Prepare release artifacts"""
write_changelog(True)
if ver is None:
ver = next_release()
print('saving updates to ChangeLog')
run('git commit ChangeLog -m "[RELEASE] Update to version v{}"'.format(ver), hide=True)
sha = run('git log -1 --pretty=format:"%h"', hide=True).stdout
run('git tag -a "{ver}" -m "version {ver}" {sha}'.format(ver=ver, sha=sha), hide=True)
package()
write_changelog()
run('git tag -d {}'.format(ver), hide=True)
run('git commit --all --amend --no-edit', hide=True)
@task
def publish(idx=None):
"""Publish packaged distributions to pypi index"""
if idx is None:
idx = ''
else:
idx = '-r ' + idx
run('python setup.py register {}'.format(idx))
run('twine upload {} dist/*.whl dist/*.egg dist/*.tar.gz'.format(idx))
@task
def release(major=False, minor=False, patch=True, pypi_index=None):
"""Overall process flow for performing a release"""
relver = next_release(major, minor, patch)
start_rel_branch(relver)
prepare_release(relver)
finish_rel_branch(relver)
publish(pypi_index)
@task
def clean(all=False, docs=False, dist=False, extra=None):
"""Clean up build files"""
run('find . -type f -name "*.py[co]" -delete')
run('find . -type d -name "__pycache__" -delete')
patterns = ['build', '*.egg-info/']
if all or docs:
patterns.append('doc/build/html/*')
if all or dist:
patterns.append('dist')
if extra:
patterns.append(extra)
for pattern in patterns:
run('rm -rf {}'.format(pattern))
@task
def pep8():
try:
pkg_resources.require('hacking')
except pkg_resources.DistributionNotFound:
run('pip -q install -U hacking', hide=True)
run('flake8 --show-source seedbox')