mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 15:40:19 +00:00
449 lines
14 KiB
Python
Executable file
449 lines
14 KiB
Python
Executable file
#!/usr/bin/env python3
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import os
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import re
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import stat
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import sys
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import subprocess
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from pathlib import Path
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from tempfile import NamedTemporaryFile
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# Matches e.g. "| [`bash`](bash/) | GNU Bash | 5.0 | https://www.gnu.org/software/bash/ |"
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# and captures "bash" in group 1, "bash/" in group 2, "<spaces>" in group 3, "GNU Bash" in group 4, "5.0" in group 5
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# and "https://www.gnu.org/software/bash/" in group 6.
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PORT_TABLE_REGEX = re.compile(
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r'^\| \[`([^`]+)`\]\(([^\)]+)\)([^\|]+) \| ([^\|]+) \| ([^\|]+?) \| ([^\|]+) \|+$', re.MULTILINE
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)
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# Matches non-abbreviated git hashes
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GIT_HASH_REGEX = re.compile(r'^[0-9a-f]{40}$')
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PORT_TABLE_FILE = 'AvailablePorts.md'
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IGNORE_FILES = {
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'.gitignore',
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'.port_include.sh',
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'.strip_env.sh',
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PORT_TABLE_FILE,
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'build_all.sh',
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'build_installed.sh',
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'README.md',
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'.hosted_defs.sh'
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}
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# Matches port names in Ports/foo/ReadMe.md
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PORT_NAME_REGEX = re.compile(r'([ .()[\]{}\w-]+)\.patch')
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REQUIRE_GIT_PATCHES = True
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GIT_PATCH_SUBJECT_RE = re.compile(r'Subject: (.*)\n')
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def read_port_table(filename):
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"""Open a file and find all PORT_TABLE_REGEX matches.
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Args:
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filename (str): filename
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Returns:
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set: all PORT_TABLE_REGEX matches
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"""
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ports = {}
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with open(filename, 'r') as fp:
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matches = PORT_TABLE_REGEX.findall(fp.read())
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for match in matches:
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line_len = sum([len(part) for part in match])
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ports[match[0]] = {
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"dir_ref": match[1],
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"name": match[2].strip(),
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"version": match[4].strip(),
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"url": match[5].strip(),
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"line_len": line_len
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}
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return ports
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def read_port_dirs():
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"""Check Ports directory for unexpected files and check each port has an executable package.sh file.
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Returns:
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list: all ports (set), no errors encountered (bool)
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"""
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ports = {}
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all_good = True
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for entry in os.listdir():
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if entry in IGNORE_FILES:
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continue
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if not os.path.isdir(entry):
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print(f"Ports/{entry} is neither a port (not a directory) nor an ignored file?!")
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all_good = False
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continue
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if os.listdir(entry) == []:
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continue
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if not os.path.exists(entry + '/package.sh'):
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print(f"Ports/{entry}/ is missing its package.sh?!")
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all_good = False
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continue
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if not os.stat(entry + '/package.sh')[stat.ST_MODE] & stat.S_IXUSR:
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print(f"Ports/{entry}/package.sh is not executable?!")
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all_good = False
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ports[entry] = get_port_properties(entry)
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return ports, all_good
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PORT_PROPERTIES = ('port', 'version', 'files')
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def resolve_script_values(value: str, props: dict) -> str:
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"""Resolve all ${...} values in a string.
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Args:
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value (str): string to resolve
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props (dict): dict of properties to resolve from
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Returns:
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str: resolved string
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"""
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for match in re.finditer(r'\$\{([^}]+)\}', value):
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key = match.group(1)
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if key in props:
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value = value.replace(match.group(0), props[key])
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return value
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def get_script_props(dir: str, script_name: str, props: dict, depth: int = 0, max_depth: int = 10) -> dict:
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"""Parse a script file and return a dict of properties.
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Args:
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dir (str): root directory of script
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script_name (str): name of script to parse
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props (dict): dict of properties to resolve from
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depth (int): current depth of recursion
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max_depth (int): maximum depth of recursion
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Returns:
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dict: dict of properties
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"""
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if depth > max_depth:
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print(f"Maximum recursion depth exceeded while parsing {dir}/{script_name}")
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return props
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buffer: str = ""
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for line in open(f"{dir}/{script_name}", 'r'):
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# Ignore comments (search in reverse to ignore # in strings)
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if line.rfind("#") > min(line.rfind('"'), line.rfind("'"), 0):
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line = line[0:line.rfind("#")]
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line = line.rstrip()
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buffer += line
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if "=" in buffer:
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[key, value] = buffer.split("=", 1)
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if (key.startswith(" ") or key.isspace()):
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buffer = ""
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continue
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if (value.startswith(('"', "'"))):
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if (value.endswith(value[0]) and len(value) > 1):
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value = value[1:-1]
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else:
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buffer += "\n"
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continue
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props[key] = resolve_script_values(value, props)
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buffer = ""
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elif buffer.startswith('source'):
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resolved_path = resolve_script_values(buffer, props).split(' ', 1)[1]
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props = get_script_props(dir, resolved_path, props, depth + 1, max_depth)
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buffer = ""
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else:
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buffer = ""
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return props
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def get_port_properties(port):
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"""Retrieves common port properties from its package.sh file.
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Returns:
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dict: keys are values from PORT_PROPERTIES, values are from the package.sh file
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"""
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props = get_script_props(port, 'package.sh', {})
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props = {prop: props[prop] if prop in props else '' for prop in PORT_PROPERTIES}
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return props
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def check_package_files(ports):
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"""Check port package.sh file for required properties.
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Args:
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ports (list): List of all ports to check
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Returns:
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bool: no errors encountered
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"""
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all_good = True
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for port in ports.keys():
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package_file = f"{port}/package.sh"
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if not os.path.exists(package_file):
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continue
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props = ports[port]
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if props['port'] != port:
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print(f"Ports/{port} should use '{port}' for 'port' but is using '{props['port']}' instead")
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all_good = False
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for prop in PORT_PROPERTIES:
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if props[prop] == '':
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print(f"Ports/{port} is missing required property '{prop}'")
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all_good = False
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return all_good
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def get_and_check_port_patch_list(ports):
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"""Checks all port patches and returns the port list/properties
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Args:
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ports (list): List of all ports to check
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Returns:
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all_good (bool): No errors encountered
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all_properties (dict): Mapping of port to port properties
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"""
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all_port_properties = {}
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all_good = True
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for port in ports:
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patches_directory = f"{port}/patches"
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if not os.path.exists(patches_directory):
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continue
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if not os.path.isdir(patches_directory):
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print(f"Ports/{port}/patches exists, but is not a directory. This is not right!")
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all_good = False
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continue
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patches_path = Path(patches_directory)
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patches_readme_path = patches_path / "ReadMe.md"
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patch_files = set(patches_path.glob("*.patch"))
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non_patch_files = set(patches_path.glob("*")) - patch_files - {patches_readme_path}
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port_properties = {
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"patches_path": patches_path,
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"patches_readme_path": patches_readme_path,
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"patch_files": patch_files,
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"non_patch_files": non_patch_files
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}
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all_port_properties[port] = port_properties
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if len(non_patch_files) != 0:
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print(f"Ports/{port}/patches contains the following non-patch files:",
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', '.join(x.name for x in non_patch_files))
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all_good = False
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return all_good, all_port_properties
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def check_descriptions_for_port_patches(patches):
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"""Ensure that ports containing patches have them documented.
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Args:
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patches (dict): Dictionary mapping ports to all their patches
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Returns:
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bool: no errors encountered
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"""
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all_good = True
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for port, properties in patches.items():
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patches_readme_path = properties["patches_readme_path"]
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patch_files = properties["patch_files"]
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readme_file_exists = patches_readme_path.exists()
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if len(patch_files) == 0:
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print(f"Ports/{port}/patches exists, but contains no patches", end="")
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if readme_file_exists:
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print(", yet it contains a ReadMe.md")
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else:
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print()
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all_good = False
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continue
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if not readme_file_exists:
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print(f"Ports/{port}/patches contains patches but no ReadMe.md describing them")
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all_good = False
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continue
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with open(str(patches_readme_path), 'r', encoding='utf-8') as f:
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readme_contents = []
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for line in f:
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if not line.startswith('#'):
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continue
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match = PORT_NAME_REGEX.search(line)
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if match:
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readme_contents.append(match.group(1))
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patch_names = set(Path(x).stem for x in patch_files)
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for patch_name in patch_names:
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if patch_name not in readme_contents:
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print(f"Ports/{port}/patches/{patch_name}.patch does not appear to be described in"
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" the corresponding ReadMe.md")
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all_good = False
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for patch_name in readme_contents:
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if patch_name not in patch_names:
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print(f"Ports/{port}/patches/{patch_name}.patch is described in ReadMe.md, "
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"but does not actually exist")
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all_good = False
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return all_good
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def try_parse_git_patch(path_to_patch):
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with open(path_to_patch, 'rb') as f:
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contents_of_patch = f.read()
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with NamedTemporaryFile('r+b') as message_file:
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res = subprocess.run(
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f"git mailinfo {message_file.name} /dev/null",
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shell=True,
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capture_output=True,
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input=contents_of_patch)
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if res.returncode != 0:
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return None
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message = message_file.read().decode('utf-8')
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subject = GIT_PATCH_SUBJECT_RE.search(res.stdout.decode("utf-8"))
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if subject:
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message = subject.group(1) + "\n" + message
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return message
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def check_patches_are_git_patches(patches):
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"""Ensure that all patches are patches made by (or compatible with) `git format-patch`.
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Args:
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patches (dict): Dictionary mapping ports to all their patches
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Returns:
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bool: no errors encountered
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"""
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all_good = True
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for port, properties in patches.items():
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for patch_path in properties["patch_files"]:
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result = try_parse_git_patch(patch_path)
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if not result:
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print(f"Ports/{port}/patches: {patch_path.stem} does not appear to be a valid "
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"git patch.")
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all_good = False
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continue
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return all_good
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def check_available_ports(from_table, ports):
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"""Check AvailablePorts.md for correct properties.
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Args:
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from_table (dict): Ports table from AvailablePorts.md
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ports (dict): Dictionary with port properties from package.sh
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Returns:
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bool: no errors encountered
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"""
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all_good = True
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previous_line_len = None
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for port in from_table.keys():
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if previous_line_len is None:
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previous_line_len = from_table[port]["line_len"]
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if previous_line_len != from_table[port]["line_len"]:
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print(f"Table row for port {port} is improperly aligned with other rows.")
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all_good = False
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else:
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previous_line_len = from_table[port]["line_len"]
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actual_ref = from_table[port]["dir_ref"]
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expected_ref = f"{port}/"
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if actual_ref != expected_ref:
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print((
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f'Directory link target in AvailablePorts.md for port {port} is '
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f'incorrect, expected "{expected_ref}", found "{actual_ref}"'
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))
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all_good = False
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actual_version = from_table[port]["version"]
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expected_version = ports[port]["version"]
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if GIT_HASH_REGEX.match(expected_version):
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expected_version = expected_version[0:7]
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if expected_version == "git":
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expected_version = ""
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if actual_version != expected_version:
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print((
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f'Version in AvailablePorts.md for port {port} is incorrect, '
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f'expected "{expected_version}", found "{actual_version}"'
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))
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all_good = False
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return all_good
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def run():
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"""Check Ports directory and package files for errors."""
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from_table = read_port_table(PORT_TABLE_FILE)
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ports, all_good = read_port_dirs()
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from_table_set = set(from_table.keys())
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ports_set = set(ports.keys())
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if list(from_table.keys()) != sorted(from_table.keys(), key=str.lower):
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all_good = False
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print('AvailablePorts.md is not in the correct order, please ensure that all ports are sorted as follows:')
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for port in sorted(from_table.keys(), key=str.lower):
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print(f" {port}")
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if from_table_set - ports_set:
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all_good = False
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print('AvailablePorts.md lists ports that do not appear in the file system:')
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for port in sorted(from_table_set - ports_set):
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print(f" {port}")
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if ports_set - from_table_set:
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all_good = False
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print('AvailablePorts.md is missing the following ports:')
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for port in sorted(ports_set - from_table_set):
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print(f" {port}")
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if not check_package_files(ports):
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all_good = False
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if not check_available_ports(from_table, ports):
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all_good = False
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patch_list_good, port_properties = get_and_check_port_patch_list(ports.keys())
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all_good = all_good and patch_list_good
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if not check_descriptions_for_port_patches(port_properties):
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all_good = False
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if REQUIRE_GIT_PATCHES and not check_patches_are_git_patches(port_properties):
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all_good = False
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if not all_good:
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sys.exit(1)
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print('No issues found.')
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if __name__ == '__main__':
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os.chdir(f"{os.path.dirname(__file__)}/../Ports")
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run()
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