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# Copyright (c) 2017 Open Source Foundries Limited.
#
# SPDX-License-Identifier: Apache-2.0
'''Sphinx extensions related to managing Zephyr applications.'''
from docutils import nodes
from docutils.parsers.rst import Directive
from docutils.parsers.rst import directives
# TODO: extend and modify this for Windows.
#
# This could be as simple as generating a couple of sets of instructions, one
# for Unix environments, and another for Windows.
class ZephyrAppCommandsDirective(Directive):
r'''
This is a Zephyr directive for generating consistent documentation
of the shell commands needed to manage (build, flash, etc.) an application.
For example, to generate commands to build samples/hello_world for
qemu_x86 use::
.. zephyr-app-commands::
:zephyr-app: samples/hello_world
:board: qemu_x86
:goals: build
Directive options:
\:tool:
which tool to use. Valid options are currently 'cmake', 'west' and 'all'.
The default is 'west'.
\:app:
path to the application to build.
\:zephyr-app:
path to the application to build, this is an app present in the upstream
zephyr repository. Mutually exclusive with \:app:.
\:cd-into:
if set, build instructions are given from within the \:app: folder,
instead of outside of it.
\:generator:
which build system to generate. Valid options are
currently 'ninja' and 'make'. The default is 'ninja'. This option
is not case sensitive.
\:host-os:
which host OS the instructions are for. Valid options are
'unix', 'win' and 'all'. The default is 'all'.
\:board:
if set, the application build will target the given board.
\:shield:
if set, the application build will target the given shield.
\:conf:
if set, the application build will use the given configuration
file. If multiple conf files are provided, enclose the
space-separated list of files with quotes, e.g., "a.conf b.conf".
\:gen-args:
if set, additional arguments to the CMake invocation
\:build-args:
if set, additional arguments to the build invocation
\:build-dir:
if set, the application build directory will *APPEND* this
(relative, Unix-separated) path to the standard build directory. This is
mostly useful for distinguishing builds for one application within a
single page.
\:goals:
a whitespace-separated list of what to do with the app (in
'build', 'flash', 'debug', 'debugserver', 'run'). Commands to accomplish
these tasks will be generated in the right order.
\:maybe-skip-config:
if set, this indicates the reader may have already
created a build directory and changed there, and will tweak the text to
note that doing so again is not necessary.
\:compact:
if set, the generated output is a single code block with no
additional comment lines
\:west-args:
if set, additional arguments to the west invocation (ignored for CMake)
'''
has_content = False
required_arguments = 0
optional_arguments = 0
final_argument_whitespace = False
option_spec = {
'tool': directives.unchanged,
'app': directives.unchanged,
'zephyr-app': directives.unchanged,
'cd-into': directives.flag,
'generator': directives.unchanged,
'host-os': directives.unchanged,
'board': directives.unchanged,
'shield': directives.unchanged,
'conf': directives.unchanged,
'gen-args': directives.unchanged,
'build-args': directives.unchanged,
'build-dir': directives.unchanged,
'goals': directives.unchanged_required,
'maybe-skip-config': directives.flag,
'compact': directives.flag,
'west-args': directives.unchanged,
}
TOOLS = ['cmake', 'west', 'all']
GENERATORS = ['make', 'ninja']
HOST_OS = ['unix', 'win', 'all']
IN_TREE_STR = '# From the root of the zephyr repository'
def run(self):
# Re-run on the current document if this directive's source changes.
self.state.document.settings.env.note_dependency(__file__)
# Parse directive options. Don't use os.path.sep or os.path.join here!
# That would break if building the docs on Windows.
tool = self.options.get('tool', 'west').lower()
app = self.options.get('app', None)
zephyr_app = self.options.get('zephyr-app', None)
cd_into = 'cd-into' in self.options
generator = self.options.get('generator', 'ninja').lower()
host_os = self.options.get('host-os', 'all').lower()
board = self.options.get('board', None)
shield = self.options.get('shield', None)
conf = self.options.get('conf', None)
gen_args = self.options.get('gen-args', None)
build_args = self.options.get('build-args', None)
build_dir_append = self.options.get('build-dir', '').strip('/')
goals = self.options.get('goals').split()
skip_config = 'maybe-skip-config' in self.options
compact = 'compact' in self.options
west_args = self.options.get('west-args', None)
if tool not in self.TOOLS:
raise self.error('Unknown tool {}; choose from: {}'.format(
tool, self.TOOLS))
if app and zephyr_app:
raise self.error('Both app and zephyr-app options were given.')
if generator not in self.GENERATORS:
raise self.error('Unknown generator {}; choose from: {}'.format(
generator, self.GENERATORS))
if host_os not in self.HOST_OS:
raise self.error('Unknown host-os {}; choose from: {}'.format(
host_os, self.HOST_OS))
if compact and skip_config:
raise self.error('Both compact and maybe-skip-config options were given.')
app = app or zephyr_app
in_tree = self.IN_TREE_STR if zephyr_app else None
# Allow build directories which are nested.
build_dir = ('build' + '/' + build_dir_append).rstrip('/')
# Create host_os array
host_os = [host_os] if host_os != "all" else [v for v in self.HOST_OS
if v != 'all']
# Create tools array
tools = [tool] if tool != "all" else [v for v in self.TOOLS
if v != 'all']
# Build the command content as a list, then convert to string.
content = []
tool_comment = None
if len(tools) > 1:
tool_comment = 'Using {}:'
run_config = {
'host_os': host_os,
'app': app,
'in_tree': in_tree,
'cd_into': cd_into,
'board': board,
'shield': shield,
'conf': conf,
'gen_args': gen_args,
'build_args': build_args,
'build_dir': build_dir,
'goals': goals,
'compact': compact,
'skip_config': skip_config,
'generator': generator,
'west_args': west_args
}
if 'west' in tools:
w = self._generate_west(**run_config)
if tool_comment:
paragraph = nodes.paragraph()
paragraph += nodes.Text(tool_comment.format('west'))
content.append(paragraph)
content.append(self._lit_block(w))
else:
content.extend(w)
if 'cmake' in tools:
c = self._generate_cmake(**run_config)
if tool_comment:
paragraph = nodes.paragraph()
paragraph += nodes.Text(tool_comment.format(
'CMake and {}'.format(generator)))
content.append(paragraph)
content.append(self._lit_block(c))
else:
content.extend(c)
if not tool_comment:
content = [self._lit_block(content)]
return content
def _lit_block(self, content):
content = '\n'.join(content)
# Create the nodes.
literal = nodes.literal_block(content, content)
self.add_name(literal)
literal['language'] = 'console'
return literal
def _generate_west(self, **kwargs):
content = []
generator = kwargs['generator']
board = kwargs['board']
app = kwargs['app']
in_tree = kwargs['in_tree']
goals = kwargs['goals']
cd_into = kwargs['cd_into']
build_dir = kwargs['build_dir']
compact = kwargs['compact']
west_args = kwargs['west_args']
kwargs['board'] = None
# west always defaults to ninja
gen_arg = ' -G\'Unix Makefiles\'' if generator == 'make' else ''
cmake_args = gen_arg + self._cmake_args(**kwargs)
cmake_args = ' --{}'.format(cmake_args) if cmake_args != '' else ''
west_args = ' {}'.format(west_args) if west_args else ''
# ignore zephyr_app since west needs to run within
# the installation. Instead rely on relative path.
src = ' {}'.format(app) if app and not cd_into else ''
dst = ' -d {}'.format(build_dir) if build_dir != 'build' else ''
if in_tree and not compact:
content.append(in_tree)
if cd_into and app:
content.append('cd {}'.format(app))
# We always have to run west build.
#
# FIXME: doing this unconditionally essentially ignores the
# maybe-skip-config option if set.
#
# This whole script and its users from within the
# documentation needs to be overhauled now that we're
# defaulting to west.
#
# For now, this keeps the resulting commands working.
content.append('west build -b {}{}{}{}{}'.
format(board, west_args, dst, src, cmake_args))
# If we're signing, we want to do that next, so that flashing
# etc. commands can use the signed file which must be created
# in this step.
if 'sign' in goals:
content.append('west sign{}'.format(dst))
for goal in goals:
if goal in {'build', 'sign'}:
continue
elif goal == 'flash':
content.append('west flash{}'.format(dst))
elif goal == 'debug':
content.append('west debug{}'.format(dst))
elif goal == 'debugserver':
content.append('west debugserver{}'.format(dst))
elif goal == 'attach':
content.append('west attach{}'.format(dst))
else:
content.append('west build -t {}{}'.format(goal, dst))
return content
@staticmethod
def _mkdir(mkdir, build_dir, host_os, skip_config):
content = []
if skip_config:
content.append("# If you already made a build directory ({}) and ran cmake, just 'cd {}' instead.".format(build_dir, build_dir)) # noqa: E501
if host_os == 'all':
content.append('mkdir {} && cd {}'.format(build_dir, build_dir))
if host_os == "unix":
content.append('{} {} && cd {}'.format(mkdir, build_dir, build_dir))
elif host_os == "win":
build_dir = build_dir.replace('/', '\\')
content.append('mkdir {} & cd {}'.format(build_dir, build_dir))
return content
@staticmethod
def _cmake_args(**kwargs):
board = kwargs['board']
shield = kwargs['shield']
conf = kwargs['conf']
gen_args = kwargs['gen_args']
board_arg = ' -DBOARD={}'.format(board) if board else ''
shield_arg = ' -DSHIELD={}'.format(shield) if shield else ''
conf_arg = ' -DCONF_FILE={}'.format(conf) if conf else ''
gen_args = ' {}'.format(gen_args) if gen_args else ''
return '{}{}{}{}'.format(board_arg, shield_arg, conf_arg, gen_args)
def _cd_into(self, mkdir, **kwargs):
app = kwargs['app']
host_os = kwargs['host_os']
compact = kwargs['compact']
build_dir = kwargs['build_dir']
skip_config = kwargs['skip_config']
content = []
os_comment = None
if len(host_os) > 1:
os_comment = '# On {}'
num_slashes = build_dir.count('/')
if not app and mkdir and num_slashes == 0:
# When there's no app and a single level deep build dir,
# simplify output
content.extend(self._mkdir(mkdir, build_dir, 'all',
skip_config))
if not compact:
content.append('')
return content
for host in host_os:
if host == "unix":
if os_comment:
content.append(os_comment.format('Linux/macOS'))
if app:
content.append('cd {}'.format(app))
elif host == "win":
if os_comment:
content.append(os_comment.format('Windows'))
if app:
backslashified = app.replace('/', '\\')
content.append('cd {}'.format(backslashified))
if mkdir:
content.extend(self._mkdir(mkdir, build_dir, host, skip_config))
if not compact:
content.append('')
return content
def _generate_cmake(self, **kwargs):
generator = kwargs['generator']
cd_into = kwargs['cd_into']
app = kwargs['app']
in_tree = kwargs['in_tree']
build_dir = kwargs['build_dir']
build_args = kwargs['build_args']
skip_config = kwargs['skip_config']
goals = kwargs['goals']
compact = kwargs['compact']
content = []
if in_tree and not compact:
content.append(in_tree)
if cd_into:
num_slashes = build_dir.count('/')
mkdir = 'mkdir' if num_slashes == 0 else 'mkdir -p'
content.extend(self._cd_into(mkdir, **kwargs))
# Prepare cmake/ninja/make variables
source_dir = ' ' + '/'.join(['..' for i in range(num_slashes + 1)])
cmake_build_dir = ''
tool_build_dir = ''
else:
source_dir = ' {}'.format(app) if app else ' .'
cmake_build_dir = ' -B{}'.format(build_dir)
tool_build_dir = ' -C{}'.format(build_dir)
# Now generate the actual cmake and make/ninja commands
gen_arg = ' -GNinja' if generator == 'ninja' else ''
build_args = ' {}'.format(build_args) if build_args else ''
cmake_args = self._cmake_args(**kwargs)
if not compact:
if not cd_into and skip_config:
content.append("# If you already ran cmake with -B{}, you " \
"can skip this step and run {} directly.".
format(build_dir, generator)) # noqa: E501
else:
content.append('# Use cmake to configure a {}-based build' \
'system:'.format(generator.capitalize())) # noqa: E501
content.append('cmake{}{}{}{}'.format(cmake_build_dir, gen_arg,
cmake_args, source_dir))
if not compact:
content.extend(['',
'# Now run ninja on the generated build system:'])
if 'build' in goals:
content.append('{}{}{}'.format(generator, tool_build_dir,
build_args))
for goal in goals:
if goal == 'build':
continue
content.append('{}{} {}'.format(generator, tool_build_dir, goal))
return content
def setup(app):
app.add_directive('zephyr-app-commands', ZephyrAppCommandsDirective)
return {
'version': '1.0',
'parallel_read_safe': True,
'parallel_write_safe': True
}