feat: add psagentai agent with deployment and configuration
Initial project setup including the main agent script, configuration files, profile JSON state, systemd service unit, startup script, deployment documentation, and Python dependencies. Includes .env, venv/, and __pycache__/ which should likely be excluded via .gitignore to avoid committing secrets and artifacts.
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#
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# The Python Imaging Library
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# $Id$
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#
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# FITS file handling
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#
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# Copyright (c) 1998-2003 by Fredrik Lundh
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#
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# See the README file for information on usage and redistribution.
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#
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from __future__ import annotations
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import gzip
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import math
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from . import Image, ImageFile
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def _accept(prefix: bytes) -> bool:
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return prefix.startswith(b"SIMPLE")
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class FitsImageFile(ImageFile.ImageFile):
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format = "FITS"
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format_description = "FITS"
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def _open(self) -> None:
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assert self.fp is not None
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headers: dict[bytes, bytes] = {}
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header_in_progress = False
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decoder_name = ""
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while True:
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header = self.fp.read(80)
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if not header:
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msg = "Truncated FITS file"
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raise OSError(msg)
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keyword = header[:8].strip()
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if keyword in (b"SIMPLE", b"XTENSION"):
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header_in_progress = True
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elif headers and not header_in_progress:
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# This is now a data unit
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break
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elif keyword == b"END":
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# Seek to the end of the header unit
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self.fp.seek(math.ceil(self.fp.tell() / 2880) * 2880)
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if not decoder_name:
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decoder_name, offset, args = self._parse_headers(headers)
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header_in_progress = False
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continue
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if decoder_name:
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# Keep going to read past the headers
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continue
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value = header[8:].split(b"/")[0].strip()
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if value.startswith(b"="):
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value = value[1:].strip()
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if not headers and (not _accept(keyword) or value != b"T"):
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msg = "Not a FITS file"
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raise SyntaxError(msg)
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headers[keyword] = value
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if not decoder_name:
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msg = "No image data"
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raise ValueError(msg)
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offset += self.fp.tell() - 80
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self.tile = [ImageFile._Tile(decoder_name, (0, 0) + self.size, offset, args)]
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def _get_size(
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self, headers: dict[bytes, bytes], prefix: bytes
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) -> tuple[int, int] | None:
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naxis = int(headers[prefix + b"NAXIS"])
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if naxis == 0:
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return None
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if naxis == 1:
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return 1, int(headers[prefix + b"NAXIS1"])
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else:
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return int(headers[prefix + b"NAXIS1"]), int(headers[prefix + b"NAXIS2"])
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def _parse_headers(
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self, headers: dict[bytes, bytes]
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) -> tuple[str, int, tuple[str | int, ...]]:
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prefix = b""
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decoder_name = "raw"
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offset = 0
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if (
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headers.get(b"XTENSION") == b"'BINTABLE'"
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and headers.get(b"ZIMAGE") == b"T"
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and headers[b"ZCMPTYPE"] == b"'GZIP_1 '"
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):
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no_prefix_size = self._get_size(headers, prefix) or (0, 0)
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number_of_bits = int(headers[b"BITPIX"])
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offset = no_prefix_size[0] * no_prefix_size[1] * (number_of_bits // 8)
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prefix = b"Z"
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decoder_name = "fits_gzip"
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size = self._get_size(headers, prefix)
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if not size:
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return "", 0, ()
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self._size = size
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number_of_bits = int(headers[prefix + b"BITPIX"])
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if number_of_bits == 8:
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self._mode = "L"
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elif number_of_bits == 16:
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self._mode = "I;16"
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elif number_of_bits == 32:
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self._mode = "I"
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elif number_of_bits in (-32, -64):
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self._mode = "F"
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args: tuple[str | int, ...]
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if decoder_name == "raw":
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args = (self.mode, 0, -1)
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else:
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args = (number_of_bits,)
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return decoder_name, offset, args
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class FitsGzipDecoder(ImageFile.PyDecoder):
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_pulls_fd = True
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def decode(self, buffer: bytes | Image.SupportsArrayInterface) -> tuple[int, int]:
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assert self.fd is not None
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with gzip.open(self.fd) as fp:
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value = fp.read(self.state.xsize * self.state.ysize * 4)
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rows = []
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offset = 0
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number_of_bits = min(self.args[0] // 8, 4)
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for y in range(self.state.ysize):
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row = bytearray()
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for x in range(self.state.xsize):
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row += value[offset + (4 - number_of_bits) : offset + 4]
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offset += 4
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rows.append(row)
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self.set_as_raw(bytes([pixel for row in rows[::-1] for pixel in row]))
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return -1, 0
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# --------------------------------------------------------------------
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# Registry
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Image.register_open(FitsImageFile.format, FitsImageFile, _accept)
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Image.register_decoder("fits_gzip", FitsGzipDecoder)
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Image.register_extensions(FitsImageFile.format, [".fit", ".fits"])
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