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fix: setup.py update using script #341

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41 changes: 35 additions & 6 deletions setup.py
Original file line number Diff line number Diff line change
Expand Up @@ -36,20 +36,48 @@ def load_requirements(*requirements_paths):
"""
# UPDATED VIA SEMGREP - if you need to remove/modify this method remove this line and add a comment specifying why.

# e.g. {"django": "Django", "confluent-kafka": "confluent_kafka[avro]"}
by_canonical_name = {}

def check_name_consistent(package):
"""
Raise exception if package is named different ways.

This ensures that packages are named consistently so we can match
constraints to packages. It also ensures that if we require a package
with extras we don't constrain it without mentioning the extras (since
that too would interfere with matching constraints.)
"""
canonical = package.lower().replace('_', '-').split('[')[0]
seen_spelling = by_canonical_name.get(canonical)
if seen_spelling is None:
by_canonical_name[canonical] = package
elif seen_spelling != package:
raise Exception(
f'Encountered both "{seen_spelling}" and "{package}" in requirements '
'and constraints files; please use just one or the other.'
)

requirements = {}
constraint_files = set()

# groups "my-package-name<=x.y.z,..." into ("my-package-name", "<=x.y.z,...")
requirement_line_regex = re.compile(r"([a-zA-Z0-9-_.]+)([<>=][^#\s]+)?")
# groups "pkg<=x.y.z,..." into ("pkg", "<=x.y.z,...")
re_package_name_base_chars = r"a-zA-Z0-9\-_." # chars allowed in base package name
# Two groups: name[maybe,extras], and optionally a constraint
requirement_line_regex = re.compile(
r"([%s]+(?:\[[%s,\s]+\])?)([<>=][^#\s]+)?"
% (re_package_name_base_chars, re_package_name_base_chars)
)

def add_version_constraint_or_raise(current_line, current_requirements, add_if_not_present):
regex_match = requirement_line_regex.match(current_line)
if regex_match:
package = regex_match.group(1)
version_constraints = regex_match.group(2)
check_name_consistent(package)
existing_version_constraints = current_requirements.get(package, None)
# it's fine to add constraints to an unconstrained package, but raise an error if there are already
# constraints in place
# It's fine to add constraints to an unconstrained package,
# but raise an error if there are already constraints in place.
if existing_version_constraints and existing_version_constraints != version_constraints:
raise BaseException(f'Multiple constraint definitions found for {package}:'
f' "{existing_version_constraints}" and "{version_constraints}".'
Expand All @@ -58,7 +86,8 @@ def add_version_constraint_or_raise(current_line, current_requirements, add_if_n
if add_if_not_present or package in current_requirements:
current_requirements[package] = version_constraints

# process .in files and store the path to any constraint files that are pulled in
# Read requirements from .in files and store the path to any
# constraint files that are pulled in.
for path in requirements_paths:
with open(path) as reqs:
for line in reqs:
Expand All @@ -67,7 +96,7 @@ def add_version_constraint_or_raise(current_line, current_requirements, add_if_n
if line and line.startswith('-c') and not line.startswith('-c http'):
constraint_files.add(os.path.dirname(path) + '/' + line.split('#')[0].replace('-c', '').strip())

# process constraint files and add any new constraints found to existing requirements
# process constraint files: add constraints to existing requirements
for constraint_file in constraint_files:
with open(constraint_file) as reader:
for line in reader:
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