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# build_winpython.py

import os, sys, argparse, datetime, subprocess, shutil

import logging

from pathlib import Path

from filecmp import cmp

def setup_logging(log_file: Path, LOG_FORMAT="%(asctime)s %(levelname)s: %(message)s"):

"""Initialize logging to both file and stdout."""

logging.basicConfig(

level=logging.INFO,

format=LOG_FORMAT,

handlers=[

logging.StreamHandler(sys.stdout),

logging.FileHandler(str(log_file), encoding="utf-8", mode='a')

]

)

def log_section(message: str, highlight_bar="-"*40):

logging.info("\n" + highlight_bar)

logging.info(message)

logging.info(highlight_bar)

def delete_folder_if_exists(folder: Path, check_flavor: str = ""):

check_last = folder.parent.name if not folder.is_dir() else folder.name

expected_name = "bu" + check_flavor

if folder.exists() and folder.is_dir() and check_last == expected_name:

logging.info(f"Removing old backup: {folder}")

folder_old = folder.with_suffix('.old')

if folder_old.exists():

shutil.rmtree(folder_old)

folder.rename(folder_old)

shutil.rmtree(folder_old)

def run_command(cmd, shell=False, check=True):

logging.info(f"[RUNNING] {' '.join(cmd) if isinstance(cmd, list) else cmd}")

with subprocess.Popen(

cmd, shell=shell, stdout=subprocess.PIPE,

stderr=subprocess.STDOUT, universal_newlines=True

) as proc:

for line in proc.stdout:

logging.info(line.rstrip())

if check and proc.wait() != 0:

raise subprocess.CalledProcessError(proc.returncode, cmd)

def pip_install(python_exe: Path, req_file: str, constraints: str, find_links: str, label: str, options:[]):

if req_file and Path(req_file).exists():

cmd = [

str(python_exe), "-m", "pip", "install",

"-r", req_file, "-c", constraints,

"--pre", "--no-index", f"--find-links={find_links}",

"--upgrade", "--no-warn-script-location"

]

if options:

cmd += options

log_section(f"Pip-install {label}")

run_command(cmd)

else:

log_section(f"No {label} specified/skipped")

def patch_winpython(python_exe):

cmd = [

str(python_exe), "-c",

"from wppm import wppm; wppm.Distribution().patch_standard_packages('', to_movable=True)"

]

run_command(cmd)

def check_env_bat(winpydirbase: Path):

envbat = winpydirbase / "scripts" / "env.bat"

if not envbat.exists():

raise FileNotFoundError(f"Missing env.bat at {envbat}")

def generate_lockfiles(target_python: Path, winpydirbase: Path, constraints: str, find_links: str, file_postfix: str):

pip_req = winpydirbase.parent / "requirement_temp.txt"

with subprocess.Popen([str(target_python), "-m", "pip", "freeze"], stdout=subprocess.PIPE) as proc:

packages = [l for l in proc.stdout if b"winpython" not in l]

pip_req.write_bytes(b"".join(packages))

# Lock to web and local (scaffolding)

for kind in ("", "local"):

out = winpydirbase.parent / f"pylock.{file_postfix}{kind}.toml"

outreq = winpydirbase.parent / f"requir.{file_postfix}{kind}.txt"

cmd = [str(target_python), "-m", "pip", "lock", "--no-deps", "-c", constraints]

if kind == "local":

cmd += ["--find-links", find_links]

cmd += ["-r", str(pip_req), "-o", str(out)]

run_command(cmd)

# Convert both locks to requirement.txt with hash256

cmd = [str(target_python), "-X", "utf8", "-c", f"from wppm import wheelhouse as wh; wh.pylock_to_req(r'{out}', r'{outreq}')"]

run_command(cmd)

# check equality

web, local = "", "local"

if not cmp(winpydirbase.parent / f"requir.{file_postfix}{web}.txt", winpydirbase.parent / f"requir.{file_postfix}{local}.txt"):

print("⚠️⚠️⚠️⚠️⚠️⚠️ ALARM ⚠️⚠️⚠️⚠️⚠️⚠️differences in ", winpydirbase.parent / f"requir.{file_postfix}{web}.txt", winpydirbase.parent / f"requir.{file_postfix}{local}.txt")

raise os.error

else:

print ("💖💖💖 match 💖💖💖 ok ",winpydirbase.parent / f"requir.{file_postfix}{web}.txt", winpydirbase.parent / f"requir.{file_postfix}{local}.txt")

print ("💖 housekeeping, removing local files 💖 ", winpydirbase.parent / f"requir.{file_postfix}{local}.txt")

os.remove (winpydirbase.parent / f"requir.{file_postfix}{local}.txt")

os.remove (winpydirbase.parent / f"pylock.{file_postfix}{local}.toml")

os.remove (winpydirbase.parent / f"requirement_temp.txt")

if (winpydirbase.parent / f"requir.{file_postfix}_wheelslocal.txt").is_file():

os.remove (winpydirbase.parent / f"requir.{file_postfix}_wheelslocal.txt")

if (winpydirbase.parent / f"pylock.{file_postfix}_wheelslocal.toml").is_file():

os.remove (winpydirbase.parent / f"pylock.{file_postfix}_wheelslocal.toml")

# --- Main Logic ---

def run_make_py(build_python, winpydirbase, args, winpyver, winpyver2):

from . import make

make.make_all(

args.release, args.release_level, basedir_wpy=winpydirbase,

verbose=True, flavor=args.flavor,

source_dirs=args.source_dirs, toolsdirs=args.tools_dirs,

winpyver=winpyver, winpyver2=winpyver2

)

def process_wheelhouse_requirements(target_python: Path, winpydirbase: Path,args: argparse.Namespace,file_postfix: str):

"""

Handle installation and conversion of wheelhouse requirements.

"""

wheelhousereq = Path(args.wheelhousereq)

kind = "local"

out = winpydirbase.parent / f"pylock.{file_postfix}_wheels{kind}.toml"

outreq = winpydirbase.parent / f"requir.{file_postfix}_wheels{kind}.txt"

if wheelhousereq.is_file():

# Generate pylock from wheelhousereq

cmd = [

str(target_python), "-m", "pip", "lock", "--no-index", "--trusted-host=None", "--pre",

"--find-links", args.find_links, "-c", args.constraints, "-r", str(wheelhousereq),

"-o", str(out)

]

run_command(cmd)

# Convert pylock to requirements with hash

pylock_to_req_cmd = [

str(target_python), "-X", "utf8", "-c",

f"from wppm import wheelhouse as wh; wh.pylock_to_req(r'{out}', r'{outreq}')"

]

run_command(pylock_to_req_cmd, check=False)

kind = ""

outw = winpydirbase.parent / f"pylock.{file_postfix}_wheels{kind}.toml"

outreqw = winpydirbase.parent / f"requir.{file_postfix}_wheels{kind}.txt"

# Generate web pylock from local frozen hashes

web_lock_cmd = [

str(target_python), "-m", "pip", "lock", "--no-deps", "--require-hashes",

"-r", str(outreq), "-o", str(outw)

]

run_command(web_lock_cmd)

pylock_to_req_cmd2 = [

str(target_python), "-X", "utf8", "-c",

f"from wppm import wheelhouse as wh; wh.pylock_to_req(r'{outw}', r'{outreqw}')"

]

run_command(pylock_to_req_cmd2, check=False)

# Use wppm to download local from req made with web hashes

wheelhouse = winpydirbase / "wheelhouse" / "included.wheels"

wppm_cmd = [

str(target_python), "-X", "utf8", "-m", "wppm", str(out), "-ws", args.find_links,

"-wd", str(wheelhouse)

]

run_command(wppm_cmd, check=False)

def main():

parser = argparse.ArgumentParser()

parser.add_argument('--python-target', required=True, help='Target Python version, e.g. 311')

parser.add_argument('--release', default='', help='Release')

parser.add_argument('--flavor', default='', help='Build flavor')

parser.add_argument('--arch', default='64', help='Architecture')

parser.add_argument('--release-level', default='', help='Release level (e.g., b1, b2)')

parser.add_argument('--winpydirbase', required=True, help='Path to put environment')

parser.add_argument('--source_dirs', required=True, help='Path to directory with python zip')

parser.add_argument('--tools_dirs', required=True, help='Path to directory with python zip')

parser.add_argument('--buildenv', required=True, help='Path to build environment')

parser.add_argument('--constraints', default='constraints.txt', help='Constraints file')

parser.add_argument('--requirements', help='Main requirements.txt file')

parser.add_argument('--find-links', default='wheelhouse', help='Path to local wheelhouse')

parser.add_argument('--log-dir', default='WinPython_build_logs', help='Directory for logs')

parser.add_argument('--mandatory-req', help='Mandatory requirements file')

parser.add_argument('--pre-req', help='Pre requirements file')

parser.add_argument('--wheelhousereq', help='Wheelhouse requirements file')

parser.add_argument('--create-installer', default='', help='default installer to create')

args = parser.parse_args()

# compute paths (same as Step2)...

build_python = Path(args.buildenv) / "python.exe"

winpydirbase = Path(args.winpydirbase)

target_python = winpydirbase / "python" / "python.exe"

# Setup paths and logs

now = datetime.datetime.now()

log_dir = Path(args.log_dir)

log_dir.mkdir(exist_ok=True)

time_str = now.strftime("%Y-%m-%d_at_%H%M")

log_file = log_dir / f"build_{args.python_target}_{args.flavor}_{args.release_level}_{time_str}.txt"

setup_logging(log_file)

# Logs termination and version naming

if len(args.release_level) > 0:

z = Path(winpydirbase).name[(4+len(args.arch)):-len(args.release_level)-len(args.release)]

else:

z = Path(winpydirbase).name[(4+len(args.arch)):-len(args.release)]

tada = f"{z[:1]}_{z[1:3]}_{z[3:]}_{args.release}"

winpyver2 = tada.replace('_', '.')

winpyver = f"{winpyver2}{args.flavor}{args.release_level}"

file_postfix = f"{args.arch}-{tada}{args.flavor}{args.release_level}"

log_section(f"Preparing build for Python {args.python_target} ({args.arch}-bit)")

log_section(f"🙏 Step 1: displace old {Path(winpydirbase)}")

delete_folder_if_exists(winpydirbase.parent, check_flavor=args.flavor) #bu{flavor]}

log_section(f"🙏 Step 2: make.py Python with {str(build_python)} at ({winpydirbase}")

run_make_py(str(build_python), winpydirbase, args, winpyver, winpyver2)

check_env_bat(winpydirbase)

log_section("🙏 Step 3: install requirements")

for label, req in [

("Mandatory", args.mandatory_req),

("Pre", args.pre_req),

("Main", args.requirements),

pip_install(target_python, req, args.constraints, args.find_links, label, ["--force-reinstall"])

log_section("🙏 Step 4: Patch Winpython")

patch_winpython(target_python)

log_section(f"🙏 Step 5: install wheelhouse requirements {args.wheelhousereq}")

if args.wheelhousereq:

process_wheelhouse_requirements(target_python, winpydirbase, args, file_postfix)

log_section("🙏 Step 6: install lockfiles")

print(target_python, winpydirbase, args.constraints, args.find_links, file_postfix)

generate_lockfiles(target_python, winpydirbase, args.constraints, args.find_links, file_postfix)

log_section(f"🙏 Step 7: generate changelog")

mdn = f"WinPython{args.flavor}-{args.arch}bit-{winpyver2}.md"

out = f"WinPython{args.flavor}-{args.arch}bit-{winpyver2}_History.md"

changelog_dir = log_dir.parent/ "changelogs"

cmd = ["set", f"WINPYVER2={winpyver2}&", "set", f"WINPYFLAVOR={args.flavor}&",

"set", f"WINPYVER={winpyver2}{args.flavor}{args.release_level}&",

str(target_python), "-X", "utf8", "-c" ,

(

"from wppm import wppm;"

"result = wppm.Distribution().generate_package_index_markdown();"

f"open(r'{winpydirbase.parent / mdn}', 'w', encoding='utf-8').write(result)"

)]

run_command(cmd, shell=True)

shutil.copyfile (winpydirbase.parent / mdn, changelog_dir / mdn)

cmd = [str(target_python), "-X", "utf8", "-c",

(

"from wppm import diff;"

f"result = diff.compare_package_indexes('{winpyver2}', searchdir=r'{changelog_dir}', flavor=r'{args.flavor}', architecture={args.arch});"

f"open(r'{winpydirbase.parent / out}', 'w', encoding='utf-8').write(result)"

)]

run_command(cmd, check=False)

shutil.copyfile (winpydirbase.parent / out, changelog_dir / out)

if args.create_installer != "":

log_section("🙏 Step 8: Create Installer")

stem = f"WinPython{args.arch}-{winpyver2}{args.flavor}{args.release_level}"

cmd = [str(target_python), "-c",

f"from wppm import utils; utils.command_installer_7zip(r'{winpydirbase}', r'{winpydirbase.parent}', r'{stem}', r'{args.create_installer}')" ]

run_command(cmd, check=False)

if __name__ == '__main__':

main()