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#!/usr/bin/env python3
import sys
import os
import json
import glob
import zipfile
import tempfile
import argparse
from urllib.request import urlopen
from io import BytesIO
sys.path.append(os.path.split(os.path.abspath(__file__))[0] + '/.marauder')
import marauder as m
# Global variables:
# Swapping for linux-brew might work.
url = 'https://github.com/Homebrew/homebrew-core/archive/master.zip'
# Use this string as the default version
_version = "1.0-unknown"
# Pick the hidden dot-file that holds json information.
_dotfile = "beer"
def download():
""" Downloads and extracts the url """
print(f"Downloading {url}", file=sys.stderr)
global extract
dl = urlopen(url)
z = zipfile.ZipFile(BytesIO(dl.read()))
extract = os.path.commonprefix(z.namelist()) + "Formula"
for file in z.namelist():
if file.startswith(extract):
z.extract(file)
def convert(create=False):
""" General purpose, converts the formulas """
global extract
def creator(data):
""" Creates/write out the formula to the build-system """
nonlocal file
def skip():
""" Returns true if formula has any unwanted dependencies """
nonlocal data
s = ['python@2',
'python',
'go',
'mono',
'ruby',
'x11',
'xcode',
'java',
'rust',
'osxfuse',
'gtk+3',
'zsh',
'perl',
'node',
'cabal-install',
'ghc',
'ant']
for d in data['depends']:
if any(d['depend'] in depend for depend in s):
return True
return False
if skip():
return None
elif data['url'].endswith('.git') or 'svn.' in os.path.dirname(data['url']):
return None # example.com/foo.git; svn.example.com/trunk
data['version'] = m.version(data['url']) or _version # <--- or default
data['install'] = [line for line in data['install'] if line != ''] # Strips lines
data['file'] = os.path.basename(file) # foobar.json | The original formula
# print(f"{data['name']}\t{data['version']}\t{data['url']}", file=sys.stderr)
# Create directories
n = data['name'].lower() # Name
try:
os.makedirs(f"{n}/_metadata")
except FileExistsError as e:
print(f"Directory {data['name']} already exists! Skipping... ({e}) {data['file']}", file=sys.stderr)
return -1
with open(f"{n}/_metadata/name", 'w') as f_name, \
open(f"{n}/_metadata/description", 'w') as f_description, \
open(f"{n}/_metadata/version", 'w') as f_version, \
open(f"{n}/_metadata/homepage", 'w') as f_homepage, \
open(f"{n}/.{_dotfile}", 'w') as f_dotfile, \
open(f"{n}/.make.sh-auto", 'w') as f_make, \
os.fdopen(os.open(f"{n}/download.sh", os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0o755), 'w') as f_download:
# _metadata
print(f"{data['name']}", file=f_name) # Use print because it appends a newline.
print(f"{data['description']}", file=f_description)
print(f"{data['version']}", file=f_version)
print(f"{data['homepage']}", file=f_homepage)
# JSON information file for whatever
json.dump(data, f_dotfile, indent=4)
# Create a script to download the file.
f_download.write(f"wget {data['url']}")
if data['mirror']:
f_download.write(f" || wget {data['mirror']}")
if data['patches']:
with os.fdopen(os.open(f"{n}/patches.sh", os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0o755), 'w') as f_patches:
for p in data['patches']:
if not p['url']: # There's data in this entry.
try:
assert p['data'] # But it might be a parsing error.
print("echo 'Creating brew-patch.diff'", file=f_patches)
print("cat << EOF >> brew-patch.diff", file=f_patches)
for l in p['data']:
f_patches.write(l)
print("EOF", file=f_patches)
except KeyError:
pass
else: # not p['url']
print(f"wget {p['url']}", file=f_patches)
# // if data['patches']
if data['install']:
try:
print("pkg:setup", file=f_make)
for l in m.makesh(data['install']):
print(f"{l}", file=f_make)
except TypeError: # FIXME
os.remove(f"{n}/.make.sh-auto")
pass
# TODO:
# -> Parse `def install`
def updater(dotfile, data, file):
""" Updates a formula """
if dotfile['url'] == data['url']:
# print(f"{dotfile['name']} is up to date.", file=sys.stderr)
return 0
# Version comes from the urls, so check the urls instead.
else:
print(f"{dotfile['name']} has to be updated.", file=sys.stdout)
data['version'] = m.version(data['url']) or _version
data['install'] = [line for line in data['install'] if line != '']
data['file'] = dotfile['file']
n = os.path.dirname(file)
with open(f"{n}/_metadata/version", 'w') as f_version, \
open(f"{n}/.{_dotfile}", 'w') as f_dotfile, \
os.fdopen(os.open(f"{n}/download.sh", os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0o755), 'w') as f_download:
print(f"{data['version']}", file=f_version)
json.dump(data, f_dotfile, indent=4)
f_download.write(f"wget {data['url']}")
if data['mirror']:
f_download.write(f" || wget {data['mirror']}")
try: # Just try to remove the old tarball.
os.remove(f"{n}/" + os.path.basename(dotfile['url']))
except OSError:
pass
if data['patches']:
with os.fdopen(os.open(f"{n}/patches.sh", os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0o755), 'w') as f_patches:
for p in data['patches']:
if not p['url']:
try:
assert p['data']
print("echo 'Creating brew-patch.diff'", file=f_patches)
print("cat << EOF >> brew-patch.diff", file=f_patches)
for l in p['data']:
f_patches.write(l)
print("EOF", file=f_patches)
except KeyError:
pass
else:
print(f"wget {p['url']}", file=f_patches)
with tempfile.TemporaryDirectory() as t:
# `pushd` tmpdir
cwd = os.getcwd()
os.chdir(t)
# Grab master and extract
download()
assert extract
extract = os.path.realpath(extract)
# `popd`
os.chdir(cwd)
if create:
for file in sorted(glob.glob(extract + '/*')):
creator(m.parse(file))
else:
for file in sorted(glob.glob(f"*/.{_dotfile}")):
f = json.load(open(file))
rb = f"{extract}/" + f['file']
updater(f, m.parse(rb), file)
def parse_arg(argv):
parser = argparse.ArgumentParser(prog='Brew-Converter', description='Converts homebrew formulas to `pwd`. Be sure to cd before using this tool.')
group = parser.add_mutually_exclusive_group()
# Args
group.add_argument('--all', help='Create and parse all brew formulas',
action='store_true', default=False, dest='all')
group.add_argument('--upgrade', help='Upgrade all formulas present',
action='store_true', default=False, dest='upgrade')
results = parser.parse_args()
# Checking
if len(argv) <= 0:
parser.print_help()
sys.exit(1)
elif results.all:
convert(create=True)
elif results.upgrade:
convert()
else:
print(f"Something went wrong: {results}")
sys.exit(3)
if __name__ == '__main__':
parse_arg(sys.argv[1:])
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