8458d98b27
Part of #7672
My main motivation is to be able to use `nix.checkConfig`[1]. This
doesn't work with Lix currently since the module uses `nix show-config`
if the Nix version is <2.20pre and `nix config show` otherwise. I think
this is the only instance where nixpkgs checks for which Nix commands
exist that affects us now, so I figured we could just perform the rename
here as well[2] and still provide the current version number[3].
I don't have a strong opinion on whether to deprecate `nix show-config`,
the warning is added there automatically.
(cherry picked from commit f300e11b056dea414d7d77bbc6e5a7dc5d9ddd41)
[1] https://nixos.org/manual/nixos/stable/options.html#opt-nix.checkConfig
[2] I should add that I don't use the "official" ways of installing Lix
because using the flake directly and callPackaging it seemed to fit
better into my workflow: I already have a little mess to make
sure Hydra from the flake uses the correct pkgs.nix and I didn't
want to complicate it further while keeping a single package-set I
can build in CI. Don't get me wrong, I think such a module for a
quick-start is very important, just giving context on why I bother
in the first place :)
[3] When we go public, I think it's worth considering to add support in
nixpkgs itself for Lix.
Change-Id: I47b4239b05cbeda3c370d2fa56ea768b768768ac
87 lines
3.7 KiB
Bash
87 lines
3.7 KiB
Bash
source common.sh
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# Skipping these two for now, because we actually *do* want flags and
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# config settings to always show up in the manual, just be marked
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# experimental. Will reenable once the manual generation takes advantage
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# of the JSON metadata on this.
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#
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# # Without flakes, flake options should not show up
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# # With flakes, flake options should show up
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#
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# function grep_both_ways {
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# nix --experimental-features 'nix-command' "$@" | grepQuietInverse flake
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# nix --experimental-features 'nix-command flakes' "$@" | grepQuiet flake
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#
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# # Also, the order should not matter
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# nix "$@" --experimental-features 'nix-command' | grepQuietInverse flake
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# nix "$@" --experimental-features 'nix-command flakes' | grepQuiet flake
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# }
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#
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# # Simple case, the configuration effects the running command
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# grep_both_ways show-config
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#
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# # Medium case, the configuration effects --help
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# grep_both_ways store gc --help
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# Test settings that are gated on experimental features; the setting is ignored
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# with a warning if the experimental feature is not enabled. The order of the
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# `setting = value` lines in the configuration should not matter.
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# 'flakes' experimental-feature is disabled before, ignore and warn
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NIX_CONFIG='
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experimental-features = nix-command
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accept-flake-config = true
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' nix config show accept-flake-config 1>$TEST_ROOT/stdout 2>$TEST_ROOT/stderr
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grepQuiet "false" $TEST_ROOT/stdout
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grepQuiet "Ignoring setting 'accept-flake-config' because experimental feature 'flakes' is not enabled" $TEST_ROOT/stderr
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# 'flakes' experimental-feature is disabled after, ignore and warn
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NIX_CONFIG='
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accept-flake-config = true
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experimental-features = nix-command
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' nix config show accept-flake-config 1>$TEST_ROOT/stdout 2>$TEST_ROOT/stderr
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grepQuiet "false" $TEST_ROOT/stdout
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grepQuiet "Ignoring setting 'accept-flake-config' because experimental feature 'flakes' is not enabled" $TEST_ROOT/stderr
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# 'flakes' experimental-feature is enabled before, process
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NIX_CONFIG='
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experimental-features = nix-command flakes
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accept-flake-config = true
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' nix config show accept-flake-config 1>$TEST_ROOT/stdout 2>$TEST_ROOT/stderr
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grepQuiet "true" $TEST_ROOT/stdout
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grepQuietInverse "Ignoring setting 'accept-flake-config'" $TEST_ROOT/stderr
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# 'flakes' experimental-feature is enabled after, process
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NIX_CONFIG='
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accept-flake-config = true
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experimental-features = nix-command flakes
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' nix config show accept-flake-config 1>$TEST_ROOT/stdout 2>$TEST_ROOT/stderr
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grepQuiet "true" $TEST_ROOT/stdout
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grepQuietInverse "Ignoring setting 'accept-flake-config'" $TEST_ROOT/stderr
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function exit_code_both_ways {
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expect 1 nix --experimental-features 'nix-command' "$@" 1>/dev/null
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nix --experimental-features 'nix-command flakes' "$@" 1>/dev/null
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# Also, the order should not matter
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expect 1 nix "$@" --experimental-features 'nix-command' 1>/dev/null
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nix "$@" --experimental-features 'nix-command flakes' 1>/dev/null
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}
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exit_code_both_ways show-config --flake-registry 'https://no'
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# Double check these are stable
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nix --experimental-features '' --help 1>/dev/null
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nix --experimental-features '' doctor --help 1>/dev/null
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nix --experimental-features '' repl --help 1>/dev/null
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nix --experimental-features '' upgrade-nix --help 1>/dev/null
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# These 3 arguments are currently given to all commands, which is wrong (as not
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# all care). To deal with fixing later, we simply make them require the
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# nix-command experimental features --- it so happens that the commands we wish
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# stabilizing to do not need them anyways.
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for arg in '--print-build-logs' '--offline' '--refresh'; do
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nix --experimental-features 'nix-command' "$arg" --help 1>/dev/null
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expect 1 nix --experimental-features '' "$arg" --help 1>/dev/null
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done
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