39 lines
1,017 B
Fish
Executable file
39 lines
1,017 B
Fish
Executable file
#!/bin/env fish
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function evalFlake --argument-names config property
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set -l argv $argv[3..]
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set -l flakePath "$(realpath (status dirname))/../../.."
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argparse --ignore-unknown "apply=" "fallback=" json -- $argv
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if [ -z "$_flag_json" ]
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set -a argv --raw
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else
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set -a argv --json
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end
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if [ -z "$_flag_apply" ]
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set _flag_apply "_: _"
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end
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if [ -n "$VALHALLA_FLAKE_ROOT" ]
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set flakePath "$VALHALLA_FLAKE_ROOT"
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end
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if [ -n "$config" ]
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set config ".$config"
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set _flag_apply "_: ($_flag_apply) ((import $(realpath --relative-to (pwd) "$(status dirname)/../../../lib/eval-attribute.nix")) _)"
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end
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PROPERTY="$property" \
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nix eval --impure --extra-experimental-features "nix-command flakes" \
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--apply "$_flag_apply" \
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"$flakePath#valhalla$config" \
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$argv
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or begin
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if [ -n "$_flag_fallback" ]
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echo "$_flag_fallback"
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else
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false
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end
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end
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end
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