bin/gen_release_notes.py - external/github.com/Mesa3D/mesa - Git at Google

 #!/usr/bin/env python3
 # Copyright © 2019-2020 Intel Corporation

 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
 # in the Software without restriction, including without limitation the rights
 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 # copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:

 # The above copyright notice and this permission notice shall be included in
 # all copies or substantial portions of the Software.

 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.

 """Generates release notes for a given version of mesa."""

 import asyncio
 import datetime
 import os
 import pathlib
 import re
 import subprocess
 import sys
 import textwrap
 import typing
 import urllib.parse

 import aiohttp
 from mako.template import Template
 from mako import exceptions

 import docutils.utils
 import docutils.parsers.rst.states as states

 CURRENT_GL_VERSION = '4.6'
 CURRENT_VK_VERSION = '1.2'

 TEMPLATE = Template(textwrap.dedent("""\
     ${header}
     ${header_underline}

     %if not bugfix:
     Mesa ${this_version} is a new development release. People who are concerned
     with stability and reliability should stick with a previous release or
     wait for Mesa ${this_version[:-1]}1.
     %else:
     Mesa ${this_version} is a bug fix release which fixes bugs found since the ${previous_version} release.
     %endif

     Mesa ${this_version} implements the OpenGL ${gl_version} API, but the version reported by
     glGetString(GL_VERSION) or glGetIntegerv(GL_MAJOR_VERSION) /
     glGetIntegerv(GL_MINOR_VERSION) depends on the particular driver being used.
     Some drivers don't support all the features required in OpenGL ${gl_version}. OpenGL
     ${gl_version} is **only** available if requested at context creation.
     Compatibility contexts may report a lower version depending on each driver.

     Mesa ${this_version} implements the Vulkan ${vk_version} API, but the version reported by
     the apiVersion property of the VkPhysicalDeviceProperties struct
     depends on the particular driver being used.

     SHA256 checksum
     ---------------

     ::

         TBD.


     New features
     ------------

     %for f in features:
     - ${rst_escape(f)}
     %endfor


     Bug fixes
     ---------

     %for b in bugs:
     - ${rst_escape(b)}
     %endfor


     Changes
     -------
     %for c, author_line in changes:
       %if author_line:

     ${rst_escape(c)}

       %else:
     - ${rst_escape(c)}
       %endif
     %endfor
     """))


 # copied from https://docutils.sourceforge.io/sandbox/xml2rst/xml2rstlib/markup.py
 class Inliner(states.Inliner):
     """
     Recognizer for inline markup. Derive this from the original inline
     markup parser for best results.
     """

     # Copy static attributes from super class
     vars().update(vars(states.Inliner))

     def quoteInline(self, text):
         """
         `text`: ``str``
           Return `text` with inline markup quoted.
         """
         # Method inspired by `states.Inliner.parse`
         self.document = docutils.utils.new_document("<string>")
         self.document.settings.trim_footnote_reference_space = False
         self.document.settings.character_level_inline_markup = False
         self.document.settings.pep_references = False
         self.document.settings.rfc_references = False

         self.init_customizations(self.document.settings)

         self.reporter = self.document.reporter
         self.reporter.stream = None
         self.language = None
         self.parent = self.document
         remaining = docutils.utils.escape2null(text)
         checked = ""
         processed = []
         unprocessed = []
         messages = []
         while remaining:
             original = remaining
             match = self.patterns.initial.search(remaining)
             if match:
                 groups = match.groupdict()
                 method = self.dispatch[groups['start'] or groups['backquote']
                                        or groups['refend'] or groups['fnend']]
                 before, inlines, remaining, sysmessages = method(self, match, 0)
                 checked += before
                 if inlines:
                     assert len(inlines) == 1, "More than one inline found"
                     inline = original[len(before)
                                       :len(original) - len(remaining)]
                     rolePfx = re.search("^:" + self.simplename + ":(?=`)",
                                         inline)
                     refSfx = re.search("_+$", inline)
                     if rolePfx:
                         # Prefixed roles need to be quoted in the middle
                         checked += (inline[:rolePfx.end()] + "\\"
                                     + inline[rolePfx.end():])
                     elif refSfx and not re.search("^`", inline):
                         # Pure reference markup needs to be quoted at the end
                         checked += (inline[:refSfx.start()] + "\\"
                                     + inline[refSfx.start():])
                     else:
                         # Quote other inlines by prefixing
                         checked += "\\" + inline
             else:
                 checked += remaining
                 break
         # Quote all original backslashes
         checked = re.sub('\x00', "\\\x00", checked)
         return docutils.utils.unescape(checked, 1)

 inliner = Inliner();


 async def gather_commits(version: str) -> str:
     p = await asyncio.create_subprocess_exec(
         'git', 'log', '--oneline', f'mesa-{version}..', '--grep', r'Closes: \(https\|#\).*',
         stdout=asyncio.subprocess.PIPE)
     out, _ = await p.communicate()
     assert p.returncode == 0, f"git log didn't work: {version}"
     return out.decode().strip()


 async def parse_issues(commits: str) -> typing.List[str]:
     issues: typing.List[str] = []
     for commit in commits.split('\n'):
         sha, message = commit.split(maxsplit=1)
         p = await asyncio.create_subprocess_exec(
             'git', 'log', '--max-count', '1', r'--format=%b', sha,
             stdout=asyncio.subprocess.PIPE)
         _out, _ = await p.communicate()
         out = _out.decode().split('\n')

         for line in reversed(out):
             if line.startswith('Closes:'):
                 bug = line.lstrip('Closes:').strip()
                 if bug.startswith('https://gitlab.freedesktop.org/mesa/mesa'):
                     # This means we have a bug in the form "Closes: https://..."
                     issues.append(os.path.basename(urllib.parse.urlparse(bug).path))
                 elif ',' in bug:
                     issues.extend([b.strip().lstrip('#') for b in bug.split(',')])
                 elif bug.startswith('#'):
                     issues.append(bug.lstrip('#'))

     return issues


 async def gather_bugs(version: str) -> typing.List[str]:
     commits = await gather_commits(version)
     issues = await parse_issues(commits)

     loop = asyncio.get_event_loop()
     async with aiohttp.ClientSession(loop=loop) as session:
         results = await asyncio.gather(*[get_bug(session, i) for i in issues])
     typing.cast(typing.Tuple[str, ...], results)
     bugs = list(results)
     if not bugs:
         bugs = ['None']
     return bugs


 async def get_bug(session: aiohttp.ClientSession, bug_id: str) -> str:
     """Query gitlab to get the name of the issue that was closed."""
     # Mesa's gitlab id is 176,
     url = 'https://gitlab.freedesktop.org/api/v4/projects/176/issues'
     params = {'iids[]': bug_id}
     async with session.get(url, params=params) as response:
         content = await response.json()
     return content[0]['title']


 async def get_shortlog(version: str) -> str:
     """Call git shortlog."""
     p = await asyncio.create_subprocess_exec('git', 'shortlog', f'mesa-{version}..',
                                              stdout=asyncio.subprocess.PIPE)
     out, _ = await p.communicate()
     assert p.returncode == 0, 'error getting shortlog'
     assert out is not None, 'just for mypy'
     return out.decode()


 def walk_shortlog(log: str) -> typing.Generator[typing.Tuple[str, bool], None, None]:
     for l in log.split('\n'):
         if l.startswith(' '): # this means we have a patch description
             yield l.lstrip(), False
         elif l.strip():
             yield l, True


 def calculate_next_version(version: str, is_point: bool) -> str:
     """Calculate the version about to be released."""
     if '-' in version:
         version = version.split('-')[0]
     if is_point:
         base = version.split('.')
         base[2] = str(int(base[2]) + 1)
         return '.'.join(base)
     return version


 def calculate_previous_version(version: str, is_point: bool) -> str:
     """Calculate the previous version to compare to.

     In the case of -rc to final that verison is the previous .0 release,
     (19.3.0 in the case of 20.0.0, for example). for point releases that is
     the last point release. This value will be the same as the input value
     for a point release, but different for a major release.
     """
     if '-' in version:
         version = version.split('-')[0]
     if is_point:
         return version
     base = version.split('.')
     if base[1] == '0':
         base[0] = str(int(base[0]) - 1)
         base[1] = '3'
     else:
         base[1] = str(int(base[1]) - 1)
     return '.'.join(base)


 def get_features(is_point_release: bool) -> typing.Generator[str, None, None]:
     p = pathlib.Path(__file__).parent.parent / 'docs' / 'relnotes' / 'new_features.txt'
     if p.exists():
         if is_point_release:
             print("WARNING: new features being introduced in a point release", file=sys.stderr)
         with p.open('rt') as f:
             for line in f:
                 yield line
             else:
                 yield "None"
         p.unlink()
     else:
         yield "None"


 async def main() -> None:
     v = pathlib.Path(__file__).parent.parent / 'VERSION'
     with v.open('rt') as f:
         raw_version = f.read().strip()
     is_point_release = '-rc' not in raw_version
     assert '-devel' not in raw_version, 'Do not run this script on -devel'
     version = raw_version.split('-')[0]
     previous_version = calculate_previous_version(version, is_point_release)
     this_version = calculate_next_version(version, is_point_release)
     today = datetime.date.today()
     header = f'Mesa {this_version} Release Notes / {today}'
     header_underline = '=' * len(header)

     shortlog, bugs = await asyncio.gather(
         get_shortlog(previous_version),
         gather_bugs(previous_version),
     )

     final = pathlib.Path(__file__).parent.parent / 'docs' / 'relnotes' / f'{this_version}.rst'
     with final.open('wt') as f:
         try:
             f.write(TEMPLATE.render(
                 bugfix=is_point_release,
                 bugs=bugs,
                 changes=walk_shortlog(shortlog),
                 features=get_features(is_point_release),
                 gl_version=CURRENT_GL_VERSION,
                 this_version=this_version,
                 header=header,
                 header_underline=header_underline,
                 previous_version=previous_version,
                 vk_version=CURRENT_VK_VERSION,
                 rst_escape=inliner.quoteInline,
             ))
         except:
             print(exceptions.text_error_template().render())

     subprocess.run(['git', 'add', final])
     subprocess.run(['git', 'commit', '-m',
                     f'docs: add release notes for {this_version}'])


 if __name__ == "__main__":
     loop = asyncio.get_event_loop()
     loop.run_until_complete(main())
	#!/usr/bin/env python3
	# Copyright © 2019-2020 Intel Corporation

	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and associated documentation files (the "Software"), to deal
	# in the Software without restriction, including without limitation the rights
	# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	# copies of the Software, and to permit persons to whom the Software is
	# furnished to do so, subject to the following conditions:

	# The above copyright notice and this permission notice shall be included in
	# all copies or substantial portions of the Software.

	# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	# SOFTWARE.

	"""Generates release notes for a given version of mesa."""

	import asyncio
	import datetime
	import os
	import pathlib
	import re
	import subprocess
	import sys
	import textwrap
	import typing
	import urllib.parse

	import aiohttp
	from mako.template import Template
	from mako import exceptions

	import docutils.utils
	import docutils.parsers.rst.states as states

	CURRENT_GL_VERSION = '4.6'
	CURRENT_VK_VERSION = '1.2'

	TEMPLATE = Template(textwrap.dedent("""\
	${header}
	${header_underline}

	%if not bugfix:
	Mesa ${this_version} is a new development release. People who are concerned
	with stability and reliability should stick with a previous release or
	wait for Mesa ${this_version[:-1]}1.
	%else:
	Mesa ${this_version} is a bug fix release which fixes bugs found since the ${previous_version} release.
	%endif

	Mesa ${this_version} implements the OpenGL ${gl_version} API, but the version reported by
	glGetString(GL_VERSION) or glGetIntegerv(GL_MAJOR_VERSION) /
	glGetIntegerv(GL_MINOR_VERSION) depends on the particular driver being used.
	Some drivers don't support all the features required in OpenGL ${gl_version}. OpenGL
	${gl_version} is only available if requested at context creation.
	Compatibility contexts may report a lower version depending on each driver.

	Mesa ${this_version} implements the Vulkan ${vk_version} API, but the version reported by
	the apiVersion property of the VkPhysicalDeviceProperties struct
	depends on the particular driver being used.

	SHA256 checksum
	---------------

	::

	TBD.


	New features
	------------

	%for f in features:
	- ${rst_escape(f)}
	%endfor


	Bug fixes
	---------

	%for b in bugs:
	- ${rst_escape(b)}
	%endfor


	Changes
	-------
	%for c, author_line in changes:
	%if author_line:

	${rst_escape(c)}

	%else:
	- ${rst_escape(c)}
	%endif
	%endfor
	"""))


	# copied from https://docutils.sourceforge.io/sandbox/xml2rst/xml2rstlib/markup.py
	class Inliner(states.Inliner):
	"""
	Recognizer for inline markup. Derive this from the original inline
	markup parser for best results.
	"""

	# Copy static attributes from super class
	vars().update(vars(states.Inliner))

	def quoteInline(self, text):
	"""
	`text`: ``str``
	Return `text` with inline markup quoted.
	"""
	# Method inspired by `states.Inliner.parse`
	self.document = docutils.utils.new_document("<string>")
	self.document.settings.trim_footnote_reference_space = False
	self.document.settings.character_level_inline_markup = False
	self.document.settings.pep_references = False
	self.document.settings.rfc_references = False

	self.init_customizations(self.document.settings)

	self.reporter = self.document.reporter
	self.reporter.stream = None
	self.language = None
	self.parent = self.document
	remaining = docutils.utils.escape2null(text)
	checked = ""
	processed = []
	unprocessed = []
	messages = []
	while remaining:
	original = remaining
	match = self.patterns.initial.search(remaining)
	if match:
	groups = match.groupdict()
	method = self.dispatch[groups['start'] or groups['backquote']
	or groups['refend'] or groups['fnend']]
	before, inlines, remaining, sysmessages = method(self, match, 0)
	checked += before
	if inlines:
	assert len(inlines) == 1, "More than one inline found"
	inline = original[len(before)
	:len(original) - len(remaining)]
	rolePfx = re.search("^:" + self.simplename + ":(?=`)",
	inline)
	refSfx = re.search("_+$", inline)
	if rolePfx:
	# Prefixed roles need to be quoted in the middle
	checked += (inline[:rolePfx.end()] + "\\"
	+ inline[rolePfx.end():])
	elif refSfx and not re.search("^`", inline):
	# Pure reference markup needs to be quoted at the end
	checked += (inline[:refSfx.start()] + "\\"
	+ inline[refSfx.start():])
	else:
	# Quote other inlines by prefixing
	checked += "\\" + inline
	else:
	checked += remaining
	break
	# Quote all original backslashes
	checked = re.sub('\x00', "\\\x00", checked)
	return docutils.utils.unescape(checked, 1)

	inliner = Inliner();


	async def gather_commits(version: str) -> str:
	p = await asyncio.create_subprocess_exec(
	'git', 'log', '--oneline', f'mesa-{version}..', '--grep', r'Closes: \(https\\|#\).*',
	stdout=asyncio.subprocess.PIPE)
	out, _ = await p.communicate()
	assert p.returncode == 0, f"git log didn't work: {version}"
	return out.decode().strip()


	async def parse_issues(commits: str) -> typing.List[str]:
	issues: typing.List[str] = []
	for commit in commits.split('\n'):
	sha, message = commit.split(maxsplit=1)
	p = await asyncio.create_subprocess_exec(
	'git', 'log', '--max-count', '1', r'--format=%b', sha,
	stdout=asyncio.subprocess.PIPE)
	_out, _ = await p.communicate()
	out = _out.decode().split('\n')

	for line in reversed(out):
	if line.startswith('Closes:'):
	bug = line.lstrip('Closes:').strip()
	if bug.startswith('https://gitlab.freedesktop.org/mesa/mesa'):
	# This means we have a bug in the form "Closes: https://..."
	issues.append(os.path.basename(urllib.parse.urlparse(bug).path))
	elif ',' in bug:
	issues.extend([b.strip().lstrip('#') for b in bug.split(',')])
	elif bug.startswith('#'):
	issues.append(bug.lstrip('#'))

	return issues


	async def gather_bugs(version: str) -> typing.List[str]:
	commits = await gather_commits(version)
	issues = await parse_issues(commits)

	loop = asyncio.get_event_loop()
	async with aiohttp.ClientSession(loop=loop) as session:
	results = await asyncio.gather(*[get_bug(session, i) for i in issues])
	typing.cast(typing.Tuple[str, ...], results)
	bugs = list(results)
	if not bugs:
	bugs = ['None']
	return bugs


	async def get_bug(session: aiohttp.ClientSession, bug_id: str) -> str:
	"""Query gitlab to get the name of the issue that was closed."""
	# Mesa's gitlab id is 176,
	url = 'https://gitlab.freedesktop.org/api/v4/projects/176/issues'
	params = {'iids[]': bug_id}
	async with session.get(url, params=params) as response:
	content = await response.json()
	return content[0]['title']


	async def get_shortlog(version: str) -> str:
	"""Call git shortlog."""
	p = await asyncio.create_subprocess_exec('git', 'shortlog', f'mesa-{version}..',
	stdout=asyncio.subprocess.PIPE)
	out, _ = await p.communicate()
	assert p.returncode == 0, 'error getting shortlog'
	assert out is not None, 'just for mypy'
	return out.decode()


	def walk_shortlog(log: str) -> typing.Generator[typing.Tuple[str, bool], None, None]:
	for l in log.split('\n'):
	if l.startswith(' '): # this means we have a patch description
	yield l.lstrip(), False
	elif l.strip():
	yield l, True


	def calculate_next_version(version: str, is_point: bool) -> str:
	"""Calculate the version about to be released."""
	if '-' in version:
	version = version.split('-')[0]
	if is_point:
	base = version.split('.')
	base[2] = str(int(base[2]) + 1)
	return '.'.join(base)
	return version


	def calculate_previous_version(version: str, is_point: bool) -> str:
	"""Calculate the previous version to compare to.

	In the case of -rc to final that verison is the previous .0 release,
	(19.3.0 in the case of 20.0.0, for example). for point releases that is
	the last point release. This value will be the same as the input value
	for a point release, but different for a major release.
	"""
	if '-' in version:
	version = version.split('-')[0]
	if is_point:
	return version
	base = version.split('.')
	if base[1] == '0':
	base[0] = str(int(base[0]) - 1)
	base[1] = '3'
	else:
	base[1] = str(int(base[1]) - 1)
	return '.'.join(base)


	def get_features(is_point_release: bool) -> typing.Generator[str, None, None]:
	p = pathlib.Path(__file__).parent.parent / 'docs' / 'relnotes' / 'new_features.txt'
	if p.exists():
	if is_point_release:
	print("WARNING: new features being introduced in a point release", file=sys.stderr)
	with p.open('rt') as f:
	for line in f:
	yield line
	else:
	yield "None"
	p.unlink()
	else:
	yield "None"


	async def main() -> None:
	v = pathlib.Path(__file__).parent.parent / 'VERSION'
	with v.open('rt') as f:
	raw_version = f.read().strip()
	is_point_release = '-rc' not in raw_version
	assert '-devel' not in raw_version, 'Do not run this script on -devel'
	version = raw_version.split('-')[0]
	previous_version = calculate_previous_version(version, is_point_release)
	this_version = calculate_next_version(version, is_point_release)
	today = datetime.date.today()
	header = f'Mesa {this_version} Release Notes / {today}'
	header_underline = '=' * len(header)

	shortlog, bugs = await asyncio.gather(
	get_shortlog(previous_version),
	gather_bugs(previous_version),
	)

	final = pathlib.Path(__file__).parent.parent / 'docs' / 'relnotes' / f'{this_version}.rst'
	with final.open('wt') as f:
	try:
	f.write(TEMPLATE.render(
	bugfix=is_point_release,
	bugs=bugs,
	changes=walk_shortlog(shortlog),
	features=get_features(is_point_release),
	gl_version=CURRENT_GL_VERSION,
	this_version=this_version,
	header=header,
	header_underline=header_underline,
	previous_version=previous_version,
	vk_version=CURRENT_VK_VERSION,
	rst_escape=inliner.quoteInline,
	))
	except:
	print(exceptions.text_error_template().render())

	subprocess.run(['git', 'add', final])
	subprocess.run(['git', 'commit', '-m',
	f'docs: add release notes for {this_version}'])


	if __name__ == "__main__":
	loop = asyncio.get_event_loop()
	loop.run_until_complete(main())