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create pathAccessible, use it to infer default dirs

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(cherry picked from commit 2c462486fe)
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Yorick van Pelt 2023-05-26 15:32:28 +02:00 • committed by Emily
parent a1c22a7c10
commit 8a9b22b604
5 changed files with 26 additions and 14 deletions
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8
src/libutil/util.hh
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@ -119,6 +119,14 @@ struct stat lstat(const Path & path);
*/
bool pathExists(const Path & path);
/**
* A version of pathExists that returns false on a permission error.
* Useful for inferring default paths across directories that might not
* be readable.
* @return true iff the given path can be accessed and exists
*/
bool pathAccessible(const Path & path);
/**
* Read the contents (target) of a symbolic link. The result is not
* in any way canonicalised.