mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2026-06-29 16:08:52 +00:00
Carles Fernandez
47 lines
1.9 KiB
Python
47 lines
1.9 KiB
Python
"""
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dump_filename.py
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Helper to interpret a GNSS-SDR ``dump_filename`` configuration value the same
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way the C++ signal-processing blocks do, so the plotting utilities can locate
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the dump files from the exact string the user wrote in the configuration.
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-----------------------------------------------------------------------------
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GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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This file is part of GNSS-SDR.
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Copyright (C) 2026 (see AUTHORS file for a list of contributors)
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SPDX-License-Identifier: GPL-3.0-or-later
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-----------------------------------------------------------------------------
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"""
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from pathlib import Path
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def resolve_dump_prefix(file_prefix, input_path="."):
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"""Split a GNSS-SDR ``dump_filename`` into ``(directory, basename)``.
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Mirrors the C++ dump-file logic shared by the tracking, telemetry,
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observables, PVT, and acquisition blocks: the directory part (everything
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before the last ``/``) is separated from the basename, and any extension
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on the basename is removed. The directory is resolved relative to
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``input_path`` (an absolute ``file_prefix`` path overrides it). The
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block-specific suffixes (channel number, ``.dat``, ``.mat``, ...) are
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appended by the caller.
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Examples:
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resolve_dump_prefix("track_ch") -> (Path("."), "track_ch")
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resolve_dump_prefix("./observables.dat") -> (Path("."), "observables")
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resolve_dump_prefix("run1/acq", "data") -> (Path("data/run1"), "acq")
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"""
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prefix_path = Path(file_prefix)
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name = prefix_path.name
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# Remove a trailing extension, ignoring a possible leading dot (matches the
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# ``substr(1).find_last_of('.')`` logic used by the GNSS-SDR blocks).
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dot = name[1:].rfind(".")
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if dot != -1:
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name = name[: dot + 1]
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directory = Path(input_path) / prefix_path.parent
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return directory, name
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