Re^2: How to get the unique canonical path of a given path?

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Re^3: How to get the unique canonical path of a given path? by Fletch (Bishop) on Jul 13, 2022 at 21:58 UTC
I don’t think you’re going to find much off the shelf because the posix/*nix way of "canonical" path is to expand out and replace symlinks (see Pathname Resolution). I think closest you might get would be rolling something using File::Spec and `splitdir` to unroll (maybe with glob for tilde handling beforehand), process for dot(s), then concatenate the remaining elements back. The cake is a lie. The cake is a lie. The cake is a lie.	[reply] [d/l]
Re^3: How to get the unique canonical path of a given path? by hippo (Archbishop) on Jul 13, 2022 at 21:26 UTC
I don't want to resolve any links in the path. Well then, I don't understand what you mean because AFAICS `realpath` does not do that. If you can provide an SSCCE (ideally in the form of a test) showing precisely what output you want for a given input and how `realpath` fails in that regard perhaps we can guide you further. Update: yes, it does do that - see replies. 🦛	[reply] [d/l] [select]
Re^4: How to get the unique canonical path of a given path? by ikegami (Patriarch) on Jul 14, 2022 at 14:50 UTC
`realpath` absolutely does resolve links. `$ perl -MPath::Tiny -E 'say path("/home/ikegami/tmp")->realpath' /tmp/ikegami` [download] There's also an example in the OP. It's the only way to safely remove «`..`». Well, technically you only need to resolve links to the left of the «`..`».	[reply] [d/l] [select]
Re^5: How to get the unique canonical path of a given path? by hippo (Archbishop) on Jul 14, 2022 at 15:27 UTC
Ah yes, you are quite correct both in the result and the rationale. I'm left wondering what on earth it was I tried with this yesterday to come to the opposite, erroneous conclusion. 🦛	[reply]