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Handle mpy version checking for Circuitpython 9

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This commit is contained in:
Dan Halbert 2024-02-13 15:45:28 -05:00
parent e3d266525d
commit e7e8df0274
1 changed files with 15 additions and 3 deletions
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18
circup/__init__.py
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@ -498,6 +498,7 @@ def ensure_latest_bundle(bundle):
def extract_metadata(path):
# pylint: disable=too-many-locals,too-many-branches
"""
Given an file path, return a dictionary containing metadata extracted from
dunder attributes found therein. Works with both .py and .mpy files.
@ -528,6 +529,7 @@ def extract_metadata(path):
if result:
logger.info("Extracted metadata: %s", result)
elif path.endswith(".mpy"):
find_by_regexp_match = False
result["mpy"] = True
with open(path, "rb") as mpy_file:
content = mpy_file.read()
@ -541,10 +543,20 @@ def extract_metadata(path):
loc = content.find(b"__version__") - 1
compatibility = (None, "7.0.0-alpha.1")
elif mpy_version == b"C\x05":
# Two bytes in mpy version 5
# Two bytes for the length of "__version__" in mpy version 5
loc = content.find(b"__version__") - 2
compatibility = ("7.0.0-alpha.1", None)
if loc > -1:
compatibility = ("7.0.0-alpha.1", "8.99.99")
elif mpy_version == b"C\x06":
# Two bytes in mpy version 6
find_by_regexp_match = True
compatibility = ("9.0.0-alpha.1", None)
if find_by_regexp_match:
# Too hard to find the version positionally.
# Find the first thing that looks like an x.y.z version number.
match = re.search(rb"([\d]+\.[\d]+\.[\d]+)\x00", content)
if match:
result["__version__"] = match.group(1).decode("utf-8")
elif loc > -1:
# Backtrack until a byte value of the offset is reached.
offset = 1
while offset < loc: