This documents the fact that nix-build, nix-env, nix-instantiate, and
nix-shell accept an extended syntax for their file arguments, including
some well-known (but not well documented) aspects, like being able to
specify `<nixpkgs>`, but also https:// tarball URLs, `flake:` prefixed
flakerefs, and the cursed `channel:` prefixed hardcoded URLs
Same thing for the new CLI incoming :)
Change-Id: Ib6d68594a16132805ba5d97526e16f7b3633117e
nix-shell: support single quotes in shebangs, fix whitespace parsing
(cherry picked from commit 3b99c6291377cbd22607896af9dfafa857d2f2dc)
Change-Id: I2a431b21c3467eefa1ef95d5a36d672f45b6937a
e.g. nix-env -e subversion => nix-env --uninstall subversion
The aim is to make the documentation less cryptic for newcomers and the
long options are more self-documenting.
The change was made with the following script:
<https://github.com/aschmolck/convert-short-nix-opts-to-long-ones>
and sanity checked visually.
Documentation on "classic" commands with many sub-commands are
notoriously hard to discover due to lack of overview and anchor links.
Additionally the information on common options and environment variables
is not accessible offline in man pages, and therefore often overlooked
by readers.
With this change, each sub-command of nix-store and nix-env gets its
own page in the manual (listed in the table of contents), and each own
man page.
Also, man pages for each subcommand now (again) list common options
and environment variables. While this makes each page quite long and
some common parameters don't apply, this should still make it easier
to navigate as that additional information was not accessible on the
command line at all.
It is now possible to run 'nix-store --<subcommand> --help` to display
help pages for the given subcommand.
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
They are equivalent according to
<https://spec.commonmark.org/0.29/#hard-line-breaks>,
and the trailing spaces tend to be a pain (because the make git
complain, editors tend to want to remove them − the `.editorconfig`
actually specifies that − etc..).
http://nixos.org redirects to https://nixos.org and apparently the HTTP library doesn't follow the redirect, so the output is empty.
When defining https in the request it crashes because the library doesn't seem to support https.
So this switches the example to a different http library.
