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This implements the dosym command proposed for EAPI 8 (called dosym8
because we cannot use the same name as the package-manager builtin).
"dosym -r <target> <link>" will expand the (apparent) path of <target>
relative to the (apparent) path of the directory containing <link>.
The main aim of this is to allow for an absolute path to be specified
as the link target, and the function will count path components and
convert it into a relative path.
Since we're inside ED at this point but the image will finally be
installed in EROOT, we don't try to resolve any pre-existing symlinks
in <target> or <link>. In other words, path expansion only looks at
the specified apparent paths, without touching any actual files in ED
or EROOT.
Signed-off-by: Ulrich Müller <ulm@gentoo.org>
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Ulrich Müller
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