404 when trying to clone geckodriver

Question

I am trying to clone this project with mercurial:

https://hg.mozilla.org/mozilla-central/file/tip/testing/geckodriver

I have downloaded TortoiseHg and selected clone repository.

It gives 404 error:

% hg clone --verbose https://hg.mozilla.org/mozilla-central/file/tip/testing/geckodriver "D:\Projects\gecko"
HTTP Error: 404 (Not Found)
[command returned code 255 Mon Oct 17 23:12:18 2022]

What is the correct path I should be trying to clone?

Answer 1

1. The URL used everywhere is just the URL of page in some Web-frontend for the some repository in some state, loosely connected to real URL of repository

2. I don't know the internal structure of Mozilla Central (they can use subrepos for separate projects or have one giant monorepo), but by inspecting changesets, which affected geckodriver dir in tree, I see modified files with path testing/geckodriver/ in names, based on which I assume that the project of interest is not an independent entity, but only a subtree in a large repository. Thus, because with HG you can't clone just part of tree (contrary to SVN, f.e.), you, maybe, have to clone the whole Mozilla Central repository in worst case

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PS: hg clone -v https://hg.mozilla.org/mozilla-central/testing/geckodriver will not work, don't waste time on it

PPS: If I grok docs correctly (NB: it's not guaranteed!!!) you can enable (still experimental, but bundled for years) sparse extension, prepare sparse-config and try to clone needed subtree testing/geckodriver (it will be not dumb hg clone, but hg init, hack-hack hgrc, hg pull https://hg.mozilla.org/mozilla-central in order to have limiting sparse-profile in game on getting sources)