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66 lines
1.8 KiB
Python
Executable File
66 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Checks that `elm.json` contains an `exposed-modules` entry for every
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# module in `src/Nri` (recursively) named `Vn.elm`, where `n` is a decimal
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# number.
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#
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# On success, this emits nothing and exits 0.
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#
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# On failure, this emits a list of those modules not exposed, and exits 2.
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#
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import json
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import os
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import re
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import sys
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re_v_file = re.compile(r"^V[0-9]+[.]elm$")
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re_module = re.compile(
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r"""
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# Zero or more blank lines or single-line comments.
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(?:^$\n|^--.*$\n)*
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# Optional port or effect modifier.
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^(?:(?:port|effect)\s+)?
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# The module declaration itself begins.
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module
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# Optional newline, comment, newline.
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(?:\n\s+--.+\n)?
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# After some whitespace, capture the module name.
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\s+(?P<module>[^ ]+)\b
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""",
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flags=re.MULTILINE | re.VERBOSE)
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def p_v_file(filename):
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"""Is `filename` a versioned widget file?"""
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return re_v_file.match(filename) is not None
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def read_module(filename):
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"""Read the module name from the Elm source."""
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with open(filename, "r", encoding="utf-8") as elm:
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return re_module.search(elm.read()).group("module")
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def find_v_modules(root):
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for dirname, dirnames, filenames in os.walk(root + "/Nri"):
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filenames = filter(p_v_file, filenames)
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filepaths = (os.path.join(dirname, filename) for filename in filenames)
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yield from map(read_module, filepaths)
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def read_exposed_modules(path):
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with open(path, "r", encoding="utf-8") as pkg:
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yield from json.load(pkg).get("exposed-modules")
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if __name__ == "__main__":
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available = set(find_v_modules("src"))
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exposed = set(read_exposed_modules("elm.json"))
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missing = available - exposed
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for module in sorted(missing):
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print("Not exposed:", module, file=sys.stderr)
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raise SystemExit(
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0 if len(missing) == 0 else 2)
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