2cef07af80
This adds a `help` verb (and `--help` option) to the `fonttools` command line tool. Submodules will be listed in the help text if they have an importable `main` function with a docstring, and `main`'s docstring will be used as the one-line description for the help text.
35 lines
956 B
Python
35 lines
956 B
Python
import pkgutil
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import sys
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import fontTools
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import importlib
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import os
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from pathlib import Path
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def main():
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"""Show this help"""
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path = fontTools.__path__
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descriptions = {}
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for pkg in sorted(
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mod.name
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for mod in pkgutil.walk_packages([fontTools.__path__[0]], prefix="fontTools.")
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):
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try:
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imports = __import__(pkg, globals(), locals(), ["main"])
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except ImportError as e:
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continue
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try:
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description = imports.main.__doc__
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if description:
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pkg = pkg.replace("fontTools.", "").replace(".__main__", "")
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descriptions[pkg] = description
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except AttributeError as e:
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pass
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for pkg, description in descriptions.items():
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print("fonttools %-12s %s" % (pkg, description), file=sys.stderr)
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if __name__ == "__main__":
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print("fonttools v%s\n" % fontTools.__version__, file=sys.stderr)
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main()
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