e5a27f04e8
This only happened if the containing project was buggy, ie. you tried to build a target that has no .do file available anywhere. However, it resulted in a confusing outcome for that case, where we'd run the wrong default.do file with the wrong parameters. Extended an existing test to catch this mistake.
51 lines
1.9 KiB
Python
51 lines
1.9 KiB
Python
"""Code for manipulating file paths."""
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import os
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from . import env
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from .logs import debug2
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def _default_do_files(filename):
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l = filename.split('.')
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for i in range(1, len(l)+1):
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basename = '.'.join(l[:i])
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ext = '.'.join(l[i:])
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if ext:
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ext = '.' + ext
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yield ("default%s.do" % ext), basename, ext
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def possible_do_files(t):
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"""Yield a list of tuples describing the .do file needed to build t."""
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dirname, filename = os.path.split(t)
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yield (os.path.join(env.v.BASE, dirname), "%s.do" % filename,
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'', filename, '')
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# It's important to try every possibility in a directory before resorting
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# to a parent directory. Think about nested projects: We don't want
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# ../../default.o.do to take precedence over ../default.do, because
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# the former one might just be an artifact of someone embedding my project
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# into theirs as a subdir. When they do, my rules should still be used
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# for building my project in *all* cases.
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t = os.path.normpath(os.path.join(env.v.BASE, t))
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dirname, filename = os.path.split(t)
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dirbits = dirname.split('/')
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# since t is an absolute path, dirbits[0] is always '', so we don't
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# need to count all the way down to i=0.
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for i in range(len(dirbits), 0, -1):
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basedir = '/'.join(dirbits[:i]) or '/'
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subdir = '/'.join(dirbits[i:])
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for dofile, basename, ext in _default_do_files(filename):
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yield (basedir, dofile,
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subdir, os.path.join(subdir, basename), ext)
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def find_do_file(f):
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for dodir, dofile, basedir, basename, ext in possible_do_files(f.name):
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dopath = os.path.join(dodir, dofile)
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debug2('%s: %s:%s ?\n' % (f.name, dodir, dofile))
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if os.path.exists(dopath):
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f.add_dep('m', dopath)
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return dodir, dofile, basedir, basename, ext
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else:
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f.add_dep('c', dopath)
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return None, None, None, None, None
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