| #!/usr/bin/env python3 |
| # Copyright lowRISC contributors. |
| # Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| # SPDX-License-Identifier: Apache-2.0 |
| # |
| # Usage: |
| # run './build_docs.py' to generate the documentation and keep it updated |
| # open 'http://localhost:1313/' to check live update (this opens the top |
| # level index page). you can also directly access a specific document by |
| # accessing 'http://localhost:1313/path/to/doc', |
| # e.g. http://localhost:1313/hw/ip/uart/doc |
| |
| import argparse |
| import logging |
| import os |
| import platform |
| import re |
| import socket |
| import subprocess |
| import sys |
| import textwrap |
| from pathlib import Path |
| |
| import check_tool_requirements |
| import dashboard.gen_dashboard_entry as gen_dashboard_entry |
| import difgen.gen_dif_listing as gen_dif_listing |
| import dvsim.Testplan as Testplan |
| import reggen.gen_cfg_html as gen_cfg_html |
| import reggen.gen_html as gen_html |
| import reggen.gen_selfdoc as reggen_selfdoc |
| import tlgen |
| from reggen.ip_block import IpBlock |
| |
| USAGE = """ |
| build_docs [options] |
| """ |
| |
| # Version of hugo extended to be used to build the docs |
| try: |
| TOOL_REQUIREMENTS = check_tool_requirements.read_tool_requirements() |
| HUGO_EXTENDED_VERSION = TOOL_REQUIREMENTS['hugo_extended'].min_version |
| except Exception as e: |
| print("Unable to get required hugo version: %s" % str(e), file=sys.stderr) |
| sys.exit(1) |
| |
| # Configurations |
| # TODO: Move to config.yaml |
| SRCTREE_TOP = Path(__file__).parent.joinpath('..').resolve() |
| config = { |
| # Toplevel source directory |
| "topdir": |
| SRCTREE_TOP, |
| |
| # Pre-generate register and hwcfg fragments from these files. |
| "hardware_definitions": [ |
| "hw/ip/aes/data/aes.hjson", |
| "hw/ip/aon_timer/data/aon_timer.hjson", |
| "hw/top_earlgrey/ip_autogen/alert_handler/data/alert_handler.hjson", |
| "hw/ip/entropy_src/data/entropy_src.hjson", |
| "hw/ip/csrng/data/csrng.hjson", |
| "hw/ip/adc_ctrl/data/adc_ctrl.hjson", |
| "hw/ip/edn/data/edn.hjson", |
| "hw/ip/flash_ctrl/data/flash_ctrl.hjson", |
| "hw/ip/gpio/data/gpio.hjson", |
| "hw/ip/hmac/data/hmac.hjson", |
| "hw/ip/i2c/data/i2c.hjson", |
| "hw/ip/keymgr/data/keymgr.hjson", |
| "hw/ip/kmac/data/kmac.hjson", |
| "hw/ip/lc_ctrl/data/lc_ctrl.hjson", |
| "hw/ip/otbn/data/otbn.hjson", |
| "hw/ip/otp_ctrl/data/otp_ctrl.hjson", |
| "hw/ip/pattgen/data/pattgen.hjson", |
| "hw/ip/pwm/data/pwm.hjson", |
| "hw/ip/rom_ctrl/data/rom_ctrl.hjson", |
| "hw/ip/rv_dm/data/rv_dm.hjson", |
| "hw/top_earlgrey/ip/pinmux/data/autogen/pinmux.hjson", |
| "hw/top_earlgrey/ip/clkmgr/data/autogen/clkmgr.hjson", |
| "hw/top_earlgrey/ip/pwrmgr/data/autogen/pwrmgr.hjson", |
| "hw/top_earlgrey/ip/rstmgr/data/autogen/rstmgr.hjson", |
| "hw/top_earlgrey/ip/sensor_ctrl/data/sensor_ctrl.hjson", |
| "hw/top_earlgrey/ip_autogen/rv_plic/data/rv_plic.hjson", |
| "hw/ip/rv_core_ibex/data/rv_core_ibex.hjson", |
| "hw/ip/rv_timer/data/rv_timer.hjson", |
| "hw/ip/spi_host/data/spi_host.hjson", |
| "hw/ip/spi_device/data/spi_device.hjson", |
| "hw/ip/sram_ctrl/data/sram_ctrl.hjson", |
| "hw/ip/sysrst_ctrl/data/sysrst_ctrl.hjson", |
| "hw/ip/uart/data/uart.hjson", |
| "hw/ip/usbdev/data/usbdev.hjson", |
| ], |
| |
| # Generate different dashboards for hwcfg's from different folders, as |
| # specified below. Note that this only generates fragments for |
| # the "hardware_definitions" registered above, or if the file has the |
| # ending ".prj.hjson" (non-comportable IPs may only have a .prj.hjson |
| # file instead of a full comportable IP hjson). |
| "dashboard_definitions": { |
| "comportable": [ |
| "hw/ip", |
| ], |
| "top_earlgrey": [ |
| "hw/top_earlgrey/ip", |
| "hw/top_earlgrey/ip_autogen", |
| ], |
| }, |
| |
| # Pre-generate testplan fragments from these files. |
| "testplan_definitions": [ |
| "hw/ip/aes/data/aes_testplan.hjson", |
| "hw/top_earlgrey/ip_autogen/alert_handler/data/alert_handler_testplan.hjson", |
| "hw/ip/aon_timer/data/aon_timer_testplan.hjson", |
| "hw/ip/clkmgr/data/clkmgr_testplan.hjson", |
| "hw/ip/entropy_src/data/entropy_src_testplan.hjson", |
| "hw/ip/csrng/data/csrng_testplan.hjson", |
| "hw/ip/adc_ctrl/data/adc_ctrl_testplan.hjson", |
| "hw/ip/edn/data/edn_testplan.hjson", |
| "hw/ip/flash_ctrl/data/flash_ctrl_testplan.hjson", |
| "hw/ip/gpio/data/gpio_testplan.hjson", |
| "hw/ip/hmac/data/hmac_testplan.hjson", |
| "hw/ip/i2c/data/i2c_testplan.hjson", |
| "hw/ip/kmac/data/kmac_testplan.hjson", |
| "hw/ip/keymgr/data/keymgr_testplan.hjson", |
| "hw/ip/lc_ctrl/data/lc_ctrl_testplan.hjson", |
| "hw/ip/otbn/data/otbn_testplan.hjson", |
| "hw/ip/otp_ctrl/data/otp_ctrl_testplan.hjson", |
| "hw/ip/pattgen/data/pattgen_testplan.hjson", |
| "hw/ip/pinmux/data/pinmux_fpv_testplan.hjson", |
| "hw/ip/pwm/data/pwm_testplan.hjson", |
| "hw/ip/pwrmgr/data/pwrmgr_testplan.hjson", |
| "hw/ip/rom_ctrl/data/rom_ctrl_testplan.hjson", |
| "hw/ip/rstmgr/data/rstmgr_testplan.hjson", |
| "hw/ip/rv_dm/data/rv_dm_testplan.hjson", |
| "hw/top_earlgrey/ip_autogen/rv_plic/data/rv_plic_fpv_testplan.hjson", |
| "hw/ip/rv_timer/data/rv_timer_testplan.hjson", |
| "hw/ip/spi_device/data/spi_device_testplan.hjson", |
| "hw/ip/spi_host/data/spi_host_testplan.hjson", |
| "hw/ip/sram_ctrl/data/sram_ctrl_testplan.hjson", |
| "hw/ip/tlul/data/tlul_testplan.hjson", |
| "hw/ip/uart/data/uart_testplan.hjson", |
| "hw/ip/usbdev/data/usbdev_testplan.hjson", |
| "hw/ip/sysrst_ctrl/data/sysrst_ctrl_testplan.hjson", |
| "hw/top_earlgrey/data/chip_testplan.hjson", |
| "hw/top_earlgrey/data/chip_testplan.hjson:gls", |
| "hw/top_earlgrey/data/standalone_sw_testplan.hjson", |
| "sw/device/silicon_creator/manuf/data/manuf_testplan.hjson", |
| "util/dvsim/examples/testplanner/foo_testplan.hjson", |
| ], |
| |
| # Pre-generated utility selfdoc |
| "selfdoc_tools": ["tlgen", "reggen"], |
| |
| # DIF Docs |
| "difs-directory": "sw/device/lib/dif", |
| |
| # Top Level Docs |
| "top_docs_directory": "top", |
| |
| # Pre-generate top level documentation from the following files. |
| "hw_top_definitions": [ |
| "hw/top_earlgrey/data/autogen/top_earlgrey.gen.hjson", |
| ], |
| |
| # Output directory for documents |
| "outdir": |
| SRCTREE_TOP.joinpath('build', 'docs'), |
| "outdir-generated": |
| SRCTREE_TOP.joinpath('build', 'docs-generated'), |
| "verbose": |
| False, |
| } |
| |
| |
| def generate_dashboards(): |
| for dashboard_name, dirs in config["dashboard_definitions"].items(): |
| hjson_paths = [] |
| # helper dict to avoid adding duplicate paths in case where |
| # the listed folders for a dashboard have a common prefix that |
| # would cause an item to be added multiple times. |
| known_paths = {} |
| for d in dirs: |
| # Search for files with the prj.hjson prefix |
| # (typically non-comportable IPs like tlul or prims). |
| hjson_paths += SRCTREE_TOP.joinpath(d).rglob('*.prj.hjson') |
| # Check for registered comportable IP definitions in this folder. |
| for k in config["hardware_definitions"]: |
| if k not in known_paths and os.path.commonprefix([d, k]) == d: |
| hjson_paths += [SRCTREE_TOP.joinpath(k)] |
| known_paths.update({k: 1}) |
| |
| hjson_paths.sort(key=lambda f: f.name) |
| |
| dashboard_path = config["outdir-generated"].joinpath( |
| dashboard_name, 'dashboard') |
| dashboard_path.parent.mkdir(exist_ok=True, parents=True) |
| dashboard_html = open(str(dashboard_path), mode='w') |
| for hjson_path in hjson_paths: |
| gen_dashboard_entry.gen_dashboard_html(hjson_path, dashboard_html) |
| dashboard_html.close() |
| |
| |
| def generate_hardware_blocks(): |
| for hardware in config["hardware_definitions"]: |
| regs = IpBlock.from_path(str(SRCTREE_TOP.joinpath(hardware)), []) |
| |
| hw_path = config["outdir-generated"].joinpath(hardware) |
| dst_path = hw_path.parent |
| dst_path.mkdir(parents=True, exist_ok=True) |
| |
| regs_path = dst_path.joinpath(hw_path.name + '.registers') |
| with open(regs_path, 'w') as regs_file: |
| gen_html.gen_html(regs, regs_file) |
| |
| hwcfg_path = dst_path.joinpath(hw_path.name + '.hwcfg') |
| with open(hwcfg_path, 'w') as hwcfg_file: |
| gen_cfg_html.gen_cfg_html(regs, hwcfg_file) |
| |
| |
| def generate_testplans(): |
| for testplan in config["testplan_definitions"]: |
| # Split the filename into filename and tags, if provided. |
| split = testplan.split(":") |
| filename = split[0] |
| tags = "_".join(split[1:]) |
| plan = Testplan.Testplan(SRCTREE_TOP.joinpath(testplan), |
| repo_top=SRCTREE_TOP) |
| plan_filename = f"{filename}.{tags}_testplan" |
| plan_path = config["outdir-generated"].joinpath(plan_filename) |
| plan_path.parent.mkdir(parents=True, exist_ok=True) |
| |
| testplan_html = open(str(plan_path), mode='w') |
| testplan_html.write(plan.get_testplan_table("html")) |
| testplan_html.close() |
| |
| |
| def generate_selfdocs(): |
| """Generate documents for the tools in `util/` if `--doc` option exists. |
| |
| Each tool creates selfdoc differently. Manually invoked. |
| """ |
| for tool in config["selfdoc_tools"]: |
| selfdoc_path = config["outdir-generated"].joinpath(tool + '.selfdoc') |
| selfdoc_path.parent.mkdir(parents=True, exist_ok=True) |
| with open(str(selfdoc_path), mode='w') as fout: |
| if tool == "reggen": |
| reggen_selfdoc.document(fout) |
| elif tool == "tlgen": |
| fout.write(tlgen.selfdoc(heading=3, cmd='tlgen.py --doc')) |
| |
| |
| def generate_pkg_reqs(): |
| """Generate an apt/yum command line invocation from |
| apt/yum-requirements.txt |
| |
| This will be saved in outdir-generated/apt_cmd.txt and |
| outdir-generated/yum_cmd.txt, respectively. |
| """ |
| |
| for pkgmgr in ["apt", "yum"]: |
| # Read the apt/yum-requirements.txt |
| requirements = [] |
| requirements_file = open(str(SRCTREE_TOP.joinpath(pkgmgr + "-requirements.txt"))) |
| for package_line in requirements_file.readlines(): |
| # Ignore everything after `#` on each line, and strip whitespace |
| package = package_line.split('#', 1)[0].strip() |
| if package: |
| # only add non-empty lines to packages |
| requirements.append(package) |
| |
| cmd = "$ sudo " + pkgmgr + " install " + " ".join(requirements) |
| cmd_lines = textwrap.wrap(cmd, |
| width=78, |
| replace_whitespace=True, |
| subsequent_indent=' ', |
| break_long_words=False, |
| break_on_hyphens=False) |
| # Newlines need to be escaped |
| cmd = " \\\n".join(cmd_lines) |
| |
| # And then to write the generated string directly to the file. |
| cmd_path = config["outdir-generated"].joinpath(pkgmgr + '_cmd.txt') |
| cmd_path.parent.mkdir(parents=True, exist_ok=True) |
| with open(str(cmd_path), mode='w') as fout: |
| fout.write(cmd) |
| |
| |
| def generate_tool_versions(): |
| """Generate an tool version number requirement from tool_requirements.py |
| |
| The version number per tool will be saved in outdir-generated/version_$TOOL_NAME.txt |
| """ |
| |
| # And then write a version file for every tool. |
| for tool, req in TOOL_REQUIREMENTS.items(): |
| version_path = config["outdir-generated"].joinpath('version_' + tool + '.txt') |
| version_path.parent.mkdir(parents=True, exist_ok=True) |
| with open(str(version_path), mode='w') as fout: |
| fout.write(req.min_version) |
| |
| |
| def generate_dif_docs(): |
| """Generate doxygen documentation and DIF listings from DIF source comments. |
| |
| This invokes Doxygen, and a few other things. Be careful of changing any |
| paths here, some correspond to paths in other configuration files. |
| """ |
| |
| logging.info("Generating Software API Documentation (Doxygen)...") |
| |
| doxygen_out_path = config["outdir-generated"].joinpath("sw") |
| |
| # The next two paths correspond to relative paths specified in the Doxyfile |
| doxygen_xml_path = doxygen_out_path.joinpath("api-xml") |
| |
| # We need to prepare this path because doxygen won't `mkdir -p` |
| doxygen_sw_path = doxygen_out_path.joinpath("public-api/sw/apis") |
| doxygen_sw_path.mkdir(parents=True, exist_ok=True) |
| |
| # This is where warnings will be generated |
| doxygen_warnings_path = doxygen_out_path.joinpath("doxygen_warnings.log") |
| if doxygen_warnings_path.exists(): |
| doxygen_warnings_path.unlink() |
| |
| doxygen_args = [ |
| "doxygen", |
| str(SRCTREE_TOP.joinpath("util/doxygen/Doxyfile")), |
| ] |
| |
| doxygen_results = subprocess.run( # noqa: F841 |
| doxygen_args, check=True, |
| cwd=str(SRCTREE_TOP), stdout=subprocess.PIPE, |
| env=dict( |
| os.environ, |
| SRCTREE_TOP=str(SRCTREE_TOP), |
| DOXYGEN_OUT=str(doxygen_out_path), |
| )) |
| |
| logging.info("Generated Software API Documentation (Doxygen)") |
| |
| if doxygen_warnings_path.exists(): |
| logging.warning("Doxygen Generated Warnings " |
| "(saved in {})".format(str(doxygen_warnings_path))) |
| |
| combined_xml = gen_dif_listing.get_combined_xml(doxygen_xml_path) |
| |
| dif_paths = [] |
| dif_paths.extend(sorted(SRCTREE_TOP.joinpath(config["difs-directory"]).glob("dif_*.h"))) |
| |
| dif_listings_root_path = config["outdir-generated"].joinpath("sw/difs_listings") |
| difrefs_root_path = config["outdir-generated"].joinpath("sw/difref") |
| |
| for dif_header_path in dif_paths: |
| dif_header = str(dif_header_path.relative_to(SRCTREE_TOP)) |
| |
| dif_listings_filename = dif_listings_root_path.joinpath(dif_header + ".html") |
| dif_listings_filename.parent.mkdir(parents=True, exist_ok=True) |
| |
| with open(str(dif_listings_filename), mode='w') as dif_listings_html: |
| gen_dif_listing.gen_listing_html(combined_xml, dif_header, |
| dif_listings_html) |
| |
| difref_functions = gen_dif_listing.get_difref_info(combined_xml, dif_header) |
| for function in difref_functions: |
| difref_filename = difrefs_root_path.joinpath(function["name"] + '.html') |
| difref_filename.parent.mkdir(parents=True, exist_ok=True) |
| |
| with open(str(difref_filename), mode='w') as difref_html: |
| gen_dif_listing.gen_difref_html(function, difref_html) |
| |
| logging.info("Generated DIF Listing for {}".format(dif_header)) |
| |
| |
| def generate_top_docs(): |
| '''Generate top level documentation fragments. |
| |
| The result is in Markdown format and is written to |
| outdir-generated/top_docs_directory/<top level name>/*.md. |
| ''' |
| script = SRCTREE_TOP / 'util' / 'design' / 'gen-top-docs.py' |
| outdir = config['outdir-generated'] / config["top_docs_directory"] |
| for top in config["hw_top_definitions"]: |
| subprocess.run([str(script), "-t", top, "-o", outdir]) |
| |
| |
| def generate_otbn_isa(): |
| '''Generate the OTBN ISA documentation fragment |
| |
| The result is in Markdown format and is written to |
| outdir-generated/otbn-isa.md |
| |
| ''' |
| otbn_dir = SRCTREE_TOP / 'hw/ip/otbn' |
| script = otbn_dir / 'util/yaml_to_doc.py' |
| yaml_file = otbn_dir / 'data/insns.yml' |
| impl_file = otbn_dir / 'dv/otbnsim/sim/insn.py' |
| |
| out_dir = config['outdir-generated'].joinpath('otbn-isa') |
| subprocess.run([str(script), str(yaml_file), str(impl_file), str(out_dir)], |
| check=True) |
| |
| |
| def hugo_match_version(hugo_bin_path, version): |
| logging.info("Hugo binary path: %s", hugo_bin_path) |
| args = [str(hugo_bin_path), "version"] |
| process = subprocess.run(args, |
| universal_newlines=True, |
| stdout=subprocess.PIPE, |
| check=True, |
| cwd=str(SRCTREE_TOP)) |
| |
| logging.info("Checking for correct Hugo version: %s", version) |
| # Hugo version string example: |
| # "Hugo Static Site Generator v0.59.0-1DD0C69C/extended linux/amd64 BuildDate: 2019-10-21T09:45:38Z" # noqa: E501 |
| return bool(re.search("v" + version + ".*[/+]extended", process.stdout)) |
| |
| |
| def install_hugo(install_dir): |
| """Download and "install" hugo into |install_dir| |
| |
| install_dir is created if it doesn't exist yet. |
| |
| Limitations: |
| Currently only 64-bit x86 Linux and macOS is supported.""" |
| |
| # TODO: Support more configurations |
| if platform.system() == 'Linux' and platform.machine() == 'x86_64': |
| download_url = ('https://github.com/gohugoio/hugo/releases/download/v{version}' |
| '/hugo_extended_{version}_Linux-64bit.tar.gz').format( |
| version=HUGO_EXTENDED_VERSION) |
| |
| elif platform.system() == 'Darwin' and platform.machine() == 'x86_64': |
| download_url = ('https://github.com/gohugoio/hugo/releases/download/v{version}' |
| '/hugo_extended_{version}_macOS-64bit.tar.gz').format( |
| version=HUGO_EXTENDED_VERSION) |
| |
| else: |
| logging.fatal( |
| "Auto-install of hugo only supported for 64-bit x86 Linux and " |
| "macOS. Manually install hugo and re-run this script with --force-global.") |
| return False |
| |
| install_dir.mkdir(exist_ok=True, parents=True) |
| hugo_bin_path = install_dir / 'hugo' |
| |
| try: |
| if hugo_match_version(hugo_bin_path, HUGO_EXTENDED_VERSION): |
| return hugo_bin_path |
| except PermissionError: |
| # If there is an error checking the version just continue to download |
| logging.info("Hugo version could not be verified. Continue to download.") |
| except FileNotFoundError: |
| pass |
| |
| # TODO: Investigate the use of Python builtins for downloading. Extracting |
| # the archive will probably will be a call to tar. |
| cmd = 'curl -sL {download_url} | tar -xzO hugo > {hugo_bin_file}'.format( |
| hugo_bin_file=str(hugo_bin_path), download_url=download_url) |
| logging.info("Calling %s to download hugo.", cmd) |
| subprocess.run(cmd, shell=True, check=True, cwd=str(SRCTREE_TOP)) |
| hugo_bin_path.chmod(0o755) |
| return hugo_bin_path |
| |
| |
| def invoke_hugo(preview, bind_wan, hugo_opts, hugo_bin_path): |
| site_docs = SRCTREE_TOP.joinpath('site', 'docs') |
| config_file = str(site_docs.joinpath('config.toml')) |
| layout_dir = str(site_docs.joinpath('layouts')) |
| args = [ |
| str(hugo_bin_path), |
| "--config", |
| config_file, |
| "--destination", |
| str(config["outdir"]), |
| "--contentDir", |
| str(SRCTREE_TOP), |
| "--layoutDir", |
| layout_dir, |
| # This option is needed because otherwise Hugo hangs trying to follow |
| # Bazel symlinks (even though they're in config.toml's ignoreFiles): |
| # see https://github.com/lowRISC/opentitan/issues/12322 for details. |
| "--watch=false", |
| ] |
| if preview: |
| args += ["server"] |
| # --bind-wan only applies when previewing. |
| if bind_wan: |
| args += ["--bind", "0.0.0.0", "--baseURL", |
| "http://" + socket.getfqdn()] |
| if hugo_opts is not None: |
| args += hugo_opts |
| |
| subprocess.run(args, check=True, cwd=str(SRCTREE_TOP)) |
| |
| |
| def main(): |
| logging.basicConfig(level=logging.INFO, |
| format="%(asctime)s - %(message)s", |
| datefmt="%Y-%m-%d %H:%M") |
| |
| parser = argparse.ArgumentParser( |
| prog="build_docs", |
| formatter_class=argparse.RawDescriptionHelpFormatter, |
| usage=USAGE) |
| parser.add_argument( |
| '--preview', |
| action='store_true', |
| help="""Starts a local server with live reload (updates triggered upon |
| changes in the documentation files). This feature is intended |
| to preview the documentation locally.""") |
| parser.add_argument( |
| '--bind-wan', |
| action='store_true', |
| help="""When previewing, bind to all interfaces (instead of just |
| localhost). This makes the documentation preview visible from |
| other hosts.""") |
| parser.add_argument( |
| '--force-global', |
| action='store_true', |
| help="""Use a global installation of Hugo. This skips the version |
| check and relies on Hugo to be available from the environment.""") |
| parser.add_argument( |
| '--hugo-opts', |
| nargs=argparse.REMAINDER, |
| help="""Indicates that all following arguments should be passed as |
| additional options to hugo. This may be useful for controlling |
| server bindings and so forth.""") |
| parser.add_argument('--hugo', help="""TODO""") |
| |
| args = parser.parse_args() |
| |
| generate_hardware_blocks() |
| generate_dashboards() |
| generate_testplans() |
| generate_selfdocs() |
| generate_pkg_reqs() |
| generate_tool_versions() |
| generate_dif_docs() |
| generate_otbn_isa() |
| generate_top_docs() |
| |
| hugo_localinstall_dir = SRCTREE_TOP / 'build' / 'docs-hugo' |
| os.environ["PATH"] += os.pathsep + str(hugo_localinstall_dir) |
| |
| hugo_bin_path = "hugo" |
| if not args.force_global: |
| try: |
| hugo_bin_path = install_hugo(hugo_localinstall_dir) |
| except KeyboardInterrupt: |
| pass |
| |
| try: |
| invoke_hugo(args.preview, args.bind_wan, args.hugo_opts, hugo_bin_path) |
| except subprocess.CalledProcessError: |
| sys.exit("Error building site") |
| except PermissionError: |
| sys.exit("Error running Hugo") |
| except KeyboardInterrupt: |
| pass |
| |
| |
| if __name__ == "__main__": |
| main() |
