[WIP] Undefined variable value yields '.' as node and may cause removing all files in tree.#3905
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bdbaddog wants to merge 3 commits intoSCons:masterfrom
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[WIP] Undefined variable value yields '.' as node and may cause removing all files in tree.#3905bdbaddog wants to merge 3 commits intoSCons:masterfrom
bdbaddog wants to merge 3 commits intoSCons:masterfrom
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… cause rermoving all files in tree.
mwichmann
reviewed
Mar 22, 2021
| global CleanTargets | ||
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| # Check for anything which evaluates to empty string, which would yield cleaning '.' | ||
| targets_strings = [(t, self.subst(t)) for t in flatten(targets) if is_String(t) and ('$' in t or t == '')] |
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wouldn't it be simpler to just let tlist and flist expand and check in them?
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So I don't think using tlist or flist would allow proper checking for accidental '.' from undefined var.
Also you wouldn't be able to give as much information about what was wrong.
mwichmann
reviewed
Mar 22, 2021
mwichmann
reviewed
Mar 22, 2021
mwichmann
changed the title
mwichmann
reviewed
Jun 22, 2022
| raise UserError( | ||
| "Targets specified to Clean() include one which evaluates to an empty string: [%s]" % ",".join( | ||
| ["%s='%s'" % (str(t), s) for (t, s) in targets_strings])) | ||
| if any([s == '' for t, s in files_strings]): |
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I see that one stanza checks targets_strings and the other files_strings, but this still reads quite duplicative... any way to combine?
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Attaching a test case made from the original report (suffixed .txt instead of .py due to github limitations) |
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Fixes #2801. Undefined variable value yields '.' as node and may cause removing all files in tree.
Contributor Checklist:
CHANGES.txt(and read theREADME.rst)