Rollup merge of #93897 - schopin-pro:linkchecker-symlink, r=Mark-Simulacrum
linkchecker: fix panic on directory symlinks
In Debian and Ubuntu, there are some patches that change the rustc/fonts
directory to a symlink to the system fonts. This triggers a latent bug
in linkchecker, as the DirEntry filetype isn't a dir but later on the
file itself, when opened, is one, triggering an unreachable!() clause.
This patch fixes the situation by using std::fs::metadata, which goes
through symlinks.
I'd have added a test case but `tidy` doesn't seem to like symlinks, and
moreover I'm not sure how Git deals with symlinks on Windows.
Signed-off-by: NSimon Chopin <simon.chopin@canonical.com>
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