Fish 4.x is a Rust rewrite published to crates.io as 'fish'. Added the
crate to the catalog so fish-deps update will run cargo install --force
fish to upgrade it. A yellow restart reminder is printed after the
upgrade since the new binary won't take effect until the shell restarts.
README warning updated to mention cargo install fish as the upgrade
path for users stuck on Fish 3.x.
cargo is now the second entry in the catalog (after fish) so it is
installed before any Rust tool that depends on it. Install preference:
rustup installer (curl | sh) first, system PM as fallback. Update
runs rustup update when rustup is available.
The rustup-installer special is evaluated before the system PM in the
method list so it is always option 1 / the default for cargo.
Split _fish_deps_pm.fish into one file per function so Fish can
autoload each by name (_fish_deps_detect_pm, _fish_deps_pm_install,
_fish_deps_pm_upgrade). A single file with multiple functions only
autoloads under the filename, leaving the others unreachable.
Replace all `test -a`/`test -o` binary operators with `; and`/`; or`
chains throughout _fish_deps_install and _fish_deps_update. Fish 4.x
removed support for -a/-o in test, causing the "unexpected argument"
errors seen on Debian.
Also consolidate paru/yay cases in pm_install and pm_upgrade since
both helpers use identical flags.
rootiest
