48 lines
1,007 B
Perl
48 lines
1,007 B
Perl
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Fallback rules must either have:
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* all their targets in the source
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* no targets in the source
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Here we me makes sure that having some targets in the source and some not is
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impossible.
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$ cat>dune-project <<EOF
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> (lang dune 3.10)
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> EOF
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$ cat >dune <<EOF
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> (rule
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> (action
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> (progn
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> (with-stdout-to x (echo ""))
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> (with-stdout-to y (echo ""))))
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> (mode fallback)
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> (targets x y))
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> EOF
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$ build() { dune build x y; }
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$ build
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$ touch x
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$ build
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File "dune", lines 1-7, characters 0-122:
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1 | (rule
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2 | (action
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3 | (progn
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4 | (with-stdout-to x (echo ""))
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5 | (with-stdout-to y (echo ""))))
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6 | (mode fallback)
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7 | (targets x y))
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Error: Some of the targets of this fallback rule are present in the source
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tree, and some are not. This is not allowed. Either none of the targets must
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be present in the source tree, either they must all be.
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The following targets are present:
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- x
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The following targets are not:
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- y
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[1]
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