Marlin/buildroot/share/PlatformIO/scripts/signature.py
2023-12-25 20:58:38 -06:00

423 lines
17 KiB
Python
Executable file

#!/usr/bin/env python3
#
# signature.py
#
import schema
import subprocess,re,json,hashlib
from datetime import datetime
from pathlib import Path
def enabled_defines(filepath):
'''
Return all enabled #define items from a given C header file in a dictionary.
A "#define" in a multi-line comment could produce a false positive if it's not
preceded by a non-space character (like * in a multi-line comment).
Output:
Each entry is a dictionary with a 'name' and a 'section' key. We end up with:
{ MOTHERBOARD: { name: "MOTHERBOARD", section: "hardware" }, ... }
The 'name' key might get dropped as redundant, but it's useful for debugging.
Because the option names are the keys, only the last occurrence is retained.
Use the Schema class for a more complete list of options, soon with full parsing.
This list is used to filter what is actually a config-defined option versus
defines from elsewhere.
While the Schema class parses the configurations on its own, this script will
get the preprocessor output and get the intersection of the enabled options from
our crude scraping method and the actual compiler output.
We end up with the actual configured state,
better than what the config files say. You can then use the
a decent reflection of all enabled options that (probably) came from
resulting config.ini to produce more exact configuration files.
'''
outdict = {}
section = "user"
spatt = re.compile(r".*@section +([-a-zA-Z0-9_\s]+)$") # must match @section ...
f = open(filepath, encoding="utf8").read().split("\n")
# Get the full contents of the file and remove all block comments.
# This will avoid false positives from #defines in comments
f = re.sub(r'/\*.*?\*/', '', '\n'.join(f), flags=re.DOTALL).split("\n")
a = []
for line in f:
sline = line.strip()
m = re.match(spatt, sline) # @section ...
if m:
section = m.group(1).strip()
continue
if sline[:7] == "#define":
# Extract the key here (we don't care about the value)
kv = sline[8:].strip().split()
outdict[kv[0]] = { 'name':kv[0], 'section': section }
return outdict
# Compute the SHA256 hash of a file
def get_file_sha256sum(filepath):
sha256_hash = hashlib.sha256()
with open(filepath,"rb") as f:
# Read and update hash string value in blocks of 4K
for byte_block in iter(lambda: f.read(4096),b""):
sha256_hash.update(byte_block)
return sha256_hash.hexdigest()
#
# Compress a JSON file into a zip file
#
import zipfile
def compress_file(filepath, storedname, outpath):
with zipfile.ZipFile(outpath, 'w', compression=zipfile.ZIP_BZIP2, compresslevel=9) as zipf:
zipf.write(filepath, arcname=storedname, compress_type=zipfile.ZIP_BZIP2, compresslevel=9)
def compute_build_signature(env):
'''
Compute the build signature by extracting all configuration settings and
building a unique reversible signature that can be included in the binary.
The signature can be reversed to get a 1:1 equivalent configuration file.
'''
if 'BUILD_SIGNATURE' in env: return
env.Append(BUILD_SIGNATURE=1)
build_path = Path(env['PROJECT_BUILD_DIR'], env['PIOENV'])
marlin_json = build_path / 'marlin_config.json'
marlin_zip = build_path / 'mc.zip'
# Definitions from these files will be kept
header_paths = [ 'Marlin/Configuration.h', 'Marlin/Configuration_adv.h' ]
# Check if we can skip processing
hashes = ''
for header in header_paths:
hashes += get_file_sha256sum(header)[0:10]
# Read a previously exported JSON file
# Same configuration, skip recomputing the build signature
same_hash = False
try:
with marlin_json.open() as infile:
conf = json.load(infile)
same_hash = conf['__INITIAL_HASH'] == hashes
if same_hash:
compress_file(marlin_json, 'marlin_config.json', marlin_zip)
except:
pass
# Extract "enabled" #define lines by scraping the configuration files.
# This data also contains the @section for each option.
conf_defines = {}
conf_names = []
for hpath in header_paths:
# Get defines in the form of { name: { name:..., section:... }, ... }
defines = enabled_defines(hpath)
# Get all unique define names into a flat array
conf_names += defines.keys()
# Remember which file these defines came from
conf_defines[hpath.split('/')[-1]] = defines
# Get enabled config options based on running GCC to preprocess the config files.
# The result is a list of line strings, each starting with '#define'.
from preprocessor import run_preprocessor
build_output = run_preprocessor(env)
# Dumb regex to filter out some dumb macros
r = re.compile(r"\(+(\s*-*\s*_.*)\)+")
# Extract all the #define lines in the build output as key/value pairs
build_defines = {}
for line in build_output:
# Split the define from the value.
key_val = line[8:].strip().decode().split(' ')
key, value = key_val[0], ' '.join(key_val[1:])
# Ignore values starting with two underscore, since it's low level
if len(key) > 2 and key[0:2] == "__": continue
# Ignore values containing parentheses (likely a function macro)
if '(' in key and ')' in key: continue
# Then filter dumb values
if r.match(value): continue
build_defines[key] = value if len(value) else ""
#
# Continue to gather data for CONFIGURATION_EMBEDDING or CONFIG_EXPORT
#
if not ('CONFIGURATION_EMBEDDING' in build_defines or 'CONFIG_EXPORT' in build_defines):
return
# Filter out useless macros from the output
cleaned_build_defines = {}
for key in build_defines:
# Remove all boards now
if key.startswith("BOARD_") and key != "BOARD_INFO_NAME": continue
# Remove all keys ending by "_T_DECLARED" as it's a copy of extraneous system stuff
if key.endswith("_T_DECLARED"): continue
# Remove keys that are not in the #define list in the Configuration list
if key not in conf_names + [ 'DETAILED_BUILD_VERSION', 'STRING_DISTRIBUTION_DATE' ]: continue
# Add to a new dictionary for simplicity
cleaned_build_defines[key] = build_defines[key]
# And we only care about defines that (most likely) came from the config files
# Build a dictionary of dictionaries with keys: 'name', 'section', 'value'
# { 'file1': { 'option': { 'name':'option', 'section':..., 'value':... }, ... }, 'file2': { ... } }
real_config = {}
for header in conf_defines:
real_config[header] = {}
for key in cleaned_build_defines:
if key in conf_defines[header]:
if key[0:2] == '__': continue
val = cleaned_build_defines[key]
real_config[header][key] = { 'file':header, 'name': key, 'value': val, 'section': conf_defines[header][key]['section']}
def tryint(key):
try: return int(build_defines[key])
except: return 0
# Get the CONFIG_EXPORT value and do an extended dump if > 100
# For example, CONFIG_EXPORT 102 will make a 'config.ini' with a [config:] group for each schema @section
config_dump = tryint('CONFIG_EXPORT')
extended_dump = config_dump > 100
if extended_dump: config_dump -= 100
#
# Produce an INI file if CONFIG_EXPORT == 2
#
if config_dump == 2:
print("Generating config.ini ...")
ini_fmt = '{0:40} = {1}'
ext_fmt = '{0:40} {1}'
ignore = ('CONFIGURATION_H_VERSION', 'CONFIGURATION_ADV_H_VERSION', 'CONFIG_EXPORT')
if extended_dump:
# Extended export will dump config options by section
# We'll use Schema class to get the sections
try:
conf_schema = schema.extract()
except Exception as exc:
print("Error: " + str(exc))
exit(1)
# Then group options by schema @section
sections = {}
for header in real_config:
for name in real_config[header]:
#print(f" name: {name}")
if name not in ignore:
ddict = real_config[header][name]
#print(f" real_config[{header}][{name}]:", ddict)
sect = ddict['section']
if sect not in sections: sections[sect] = {}
sections[sect][name] = ddict
# Get all sections as a list of strings, with spaces and dashes replaced by underscores
long_list = [ re.sub(r'[- ]+', '_', x).lower() for x in sections.keys() ]
# Make comma-separated lists of sections with 64 characters or less
sec_lines = []
while len(long_list):
line = long_list.pop(0) + ', '
while len(long_list) and len(line) + len(long_list[0]) < 64 - 1:
line += long_list.pop(0) + ', '
sec_lines.append(line.strip())
sec_lines[-1] = sec_lines[-1][:-1] # Remove the last comma
else:
sec_lines = ['all']
# Build the ini_use_config item
sec_list = ini_fmt.format('ini_use_config', sec_lines[0])
for line in sec_lines[1:]: sec_list += '\n' + ext_fmt.format('', line)
config_ini = build_path / 'config.ini'
with config_ini.open('w') as outfile:
filegrp = { 'Configuration.h':'config:basic', 'Configuration_adv.h':'config:advanced' }
vers = build_defines["CONFIGURATION_H_VERSION"]
dt_string = datetime.now().strftime("%Y-%m-%d at %H:%M:%S")
outfile.write(
f'''#
# Marlin Firmware
# config.ini - Options to apply before the build
#
# Generated by Marlin build on {dt_string}
#
[config:base]
#
# ini_use_config - A comma-separated list of actions to apply to the Configuration files.
# The actions will be applied in the listed order.
# - none
# Ignore this file and don't apply any configuration options
#
# - base
# Just apply the options in config:base to the configuration
#
# - minimal
# Just apply the options in config:minimal to the configuration
#
# - all
# Apply all 'config:*' sections in this file to the configuration
#
# - another.ini
# Load another INI file with a path relative to this config.ini file (i.e., within Marlin/)
#
# - https://me.myserver.com/path/to/configs
# Fetch configurations from any URL.
#
# - example/Creality/Ender-5 Plus @ bugfix-2.1.x
# Fetch example configuration files from the MarlinFirmware/Configurations repository
# https://raw.githubusercontent.com/MarlinFirmware/Configurations/bugfix-2.1.x/config/examples/Creality/Ender-5%20Plus/
#
# - example/default @ release-2.0.9.7
# Fetch default configuration files from the MarlinFirmware/Configurations repository
# https://raw.githubusercontent.com/MarlinFirmware/Configurations/release-2.0.9.7/config/default/
#
# - [disable]
# Comment out all #defines in both Configuration.h and Configuration_adv.h. This is useful
# to start with a clean slate before applying any config: options, so only the options explicitly
# set in config.ini will be enabled in the configuration.
#
# - [flatten] (Not yet implemented)
# Produce a flattened set of Configuration.h and Configuration_adv.h files with only the enabled
# #defines and no comments. A clean look, but context-free.
#
{sec_list}
{ini_fmt.format('ini_config_vers', vers)}
''' )
if extended_dump:
# Loop through the sections
for skey in sorted(sections):
#print(f" skey: {skey}")
sani = re.sub(r'[- ]+', '_', skey).lower()
outfile.write(f"\n[config:{sani}]\n")
opts = sections[skey]
for name in sorted(opts):
val = opts[name]['value']
if val == '': val = 'on'
#print(f" {name} = {val}")
outfile.write(ini_fmt.format(name.lower(), val) + '\n')
else:
# Standard export just dumps config:basic and config:advanced sections
for header in real_config:
outfile.write(f'\n[{filegrp[header]}]\n')
for name in sorted(real_config[header]):
if name not in ignore:
val = real_config[header][name]['value']
if val == '': val = 'on'
outfile.write(ini_fmt.format(name.lower(), val) + '\n')
#
# CONFIG_EXPORT 3 = schema.json, 4 = schema.yml
#
if config_dump >= 3:
try:
conf_schema = schema.extract()
except Exception as exc:
print("Error: " + str(exc))
conf_schema = None
if conf_schema:
#
# 3 = schema.json
#
if config_dump in (3, 13):
print("Generating schema.json ...")
schema.dump_json(conf_schema, build_path / 'schema.json')
if config_dump == 13:
schema.group_options(conf_schema)
schema.dump_json(conf_schema, build_path / 'schema_grouped.json')
#
# 4 = schema.yml
#
elif config_dump == 4:
print("Generating schema.yml ...")
try:
import yaml
except ImportError:
env.Execute(env.VerboseAction(
'$PYTHONEXE -m pip install "pyyaml"',
"Installing YAML for schema.yml export",
))
import yaml
schema.dump_yaml(conf_schema, build_path / 'schema.yml')
#
# Produce a JSON file for CONFIGURATION_EMBEDDING or CONFIG_EXPORT == 1
# Skip if an identical JSON file was already present.
#
if not same_hash and (config_dump == 1 or 'CONFIGURATION_EMBEDDING' in build_defines):
with marlin_json.open('w') as outfile:
json_data = {}
if extended_dump:
print("Extended dump ...")
for header in real_config:
confs = real_config[header]
json_data[header] = {}
for name in confs:
c = confs[name]
s = c['section']
if s not in json_data[header]: json_data[header][s] = {}
json_data[header][s][name] = c['value']
else:
for header in real_config:
conf = real_config[header]
#print(f"real_config[{header}]", conf)
for name in conf:
json_data[name] = conf[name]['value']
json_data['__INITIAL_HASH'] = hashes
# Append the source code version and date
json_data['VERSION'] = {
'DETAILED_BUILD_VERSION': cleaned_build_defines['DETAILED_BUILD_VERSION'],
'STRING_DISTRIBUTION_DATE': cleaned_build_defines['STRING_DISTRIBUTION_DATE']
}
try:
curver = subprocess.check_output(["git", "describe", "--match=NeVeRmAtCh", "--always"]).strip()
json_data['VERSION']['GIT_REF'] = curver.decode()
except:
pass
json.dump(json_data, outfile, separators=(',', ':'))
#
# The rest only applies to CONFIGURATION_EMBEDDING
#
if not 'CONFIGURATION_EMBEDDING' in build_defines:
(build_path / 'mc.zip').unlink(missing_ok=True)
return
# Compress the JSON file as much as we can
if not same_hash:
compress_file(marlin_json, 'marlin_config.json', marlin_zip)
# Generate a C source file containing the entire ZIP file as an array
with open('Marlin/src/mczip.h','wb') as result_file:
result_file.write(
b'#ifndef NO_CONFIGURATION_EMBEDDING_WARNING\n'
+ b' #warning "Generated file \'mc.zip\' is embedded (Define NO_CONFIGURATION_EMBEDDING_WARNING to suppress this warning.)"\n'
+ b'#endif\n'
+ b'const unsigned char mc_zip[] PROGMEM = {\n '
)
count = 0
for b in (build_path / 'mc.zip').open('rb').read():
result_file.write(b' 0x%02X,' % b)
count += 1
if count % 16 == 0: result_file.write(b'\n ')
if count % 16: result_file.write(b'\n')
result_file.write(b'};\n')
if __name__ == "__main__":
# Build required. From command line just explain usage.
print("Use schema.py to export JSON and YAML from the command-line.")
print("Build Marlin with CONFIG_EXPORT 2 to export 'config.ini'.")