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build-config.py
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build-config.py
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#!/usr/bin/python3
# Copyright 2021 - 2024 iDigitalFlame
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from os import listdir
from io import StringIO
from sys import argv, exit, stderr, stdout
from os.path import isfile, isdir, islink, join, abspath, dirname
class Builder(object):
def __init__(self):
self.base = None
self.dirs = dict()
self.files = dict()
def __str__(self):
b = StringIO()
self.write(b)
b.close()
s = b.getvalue()
del b
return s
def build(self, dir):
if not isdir(dir):
raise ValueError(f'Path "{dir}" is not a directory!')
self.base = abspath(dir)
self._dir(self.base, True)
def _file(self, path):
if path.endswith(".md"):
return
b = path.replace(self.base, "")
if len(b) == 0:
raise ValueError(f'Invalid file path "{path}"!')
if b.startswith(".git"):
return
if b[0] != "/":
b = f"/{b}"
d = dirname(b)
if len(d) > 1:
if d not in self.dirs:
self.dirs[d] = 1
else:
self.dirs[d] += 1
del d
r, k = None, False
try:
with open(path, "r") as f:
r = f.read()
except UnicodeDecodeError:
y = StringIO()
with open(path, "rb") as f:
for c in f.read():
y.write(f"\\x{hex(c).upper()[2:].zfill(2)}")
r, k = y.getvalue(), True
y.close()
del y
if not isinstance(r, str) or len(r) == 0:
self.files[b] = f'/usr/bin/printf "" > "${{SETUP_DIRECTORY}}{b}"'
return
i = 0
o = StringIO()
e = [f'/usr/bin/printf "" > "${{SETUP_DIRECTORY}}{b}"']
for c in r:
if i >= 80:
e.append(
f"/usr/bin/printf '{o.getvalue()}' >> \"${{SETUP_DIRECTORY}}{b}\""
)
o.truncate(0)
o.seek(0)
o.flush()
i = 0
if c == "\n":
o.write("\\n")
i += 1
elif c == "\t":
o.write("\\t")
i += 1
elif c == "\\" and not k:
o.write("\\\\")
i += 1
elif c == "'":
o.write("'\\''")
i += 3
elif c == "%":
o.write("%%")
i += 1
else:
o.write(c)
i += 1
if o.tell() > 0:
e.append(f"/usr/bin/printf '{o.getvalue()}' >> \"${{SETUP_DIRECTORY}}{b}\"")
del o, k, r
self.files[b] = "\n".join(e)
del e, b
def write(self, output):
output.write(
f"#!/bin/bash\n# Automatically generated build files script.\n# Args: {' '.join(argv)}\n\n"
)
for k, v in self.dirs.items():
if v == 0 or len(k) <= 1:
continue
if k[0] != "/":
k = f"/{k}"
output.write(f'mkdir -p "${{SETUP_DIRECTORY}}{k}" 2> /dev/null\n')
output.write("\n")
for k, v in self.files.items():
output.write(f'# Create file "{k}"\n')
output.write(v)
output.write("\n\n")
def print(self, file=None):
if isinstance(file, str) and len(file) > 0:
with open(file, "w") as o:
self.write(o)
return
return self.write(stdout)
def _dir(self, path, base=False):
if isfile(path):
return self._file(path)
if not isdir(path):
print(f'Ignoring non-file/dir entry "{path}".', file=stderr)
return
for f in listdir(path):
p = join(path, f)
if base and (f == ".git" or f == "LICENSE" or f.lower().endswith(".md")):
continue
if (not isdir(p) and not isfile(p)) or islink(p):
print(f'Ignoring non file/dir entry "{path}".', file=stderr)
continue
if isdir(p):
self._dir(p, False)
continue
try:
self._file(p)
except Exception as err:
raise ValueError(f"{p}: {err}") from err
if __name__ == "__main__":
if len(argv) < 2:
print(f"{argv[0]} <chroot> [outscript]", file=stderr)
exit(1)
file = None
if len(argv) >= 3:
file = argv[2]
try:
b = Builder()
b.build(argv[1])
b.print(file)
except Exception as err:
print(f"{err}", file=stderr)
exit(1)
exit(0)