nix-option-search: Init
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README.md
18
README.md
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@ -18,17 +18,29 @@ TODO:
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### Nix Options
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TODO:
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**NOTE:** This is mostly a copypaste of `home-manager-search`.
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The documentation structure for `home-manager-search` and `nix-option-search` differ slightly, but they are similar enough that the copypaste version is kind of usable.
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I will fix up this in the future, but for now I am focusing on squashing the bugs within `home-manager-search`.
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```console
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nix run github:h7x4/nix-attr-search#nix-option-search
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```
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Or a more advanced version:
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```console
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nix run github:h7x4/nix-attr-search#nix-option-search -- --flake="github:NixOS/nixpkgs" --ref="nixos-22.05"
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```
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### Homemanager
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```
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```console
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nix run github:h7x4/nix-attr-search#home-manager-search
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```
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Or a more advanced version:
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```
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```console
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nix run github:h7x4/nix-attr-search#home-manager-search -- --flake="github:nix-community/home-manager" --ref="release-22.05"
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```
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@ -45,6 +45,10 @@
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};
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nix-option-search = pkgs.callPackage ./searchers/nix-option-search.nix {
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inherit nixpkgs;
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inherit (self.packages.${system}) json2nix;
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defaultManualPath =
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let pkg = self.packages.${system}.nix-options-json;
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in "${pkg}/share/doc/nixos/options.json";
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};
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nix-package-search =
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pkgs.callPackage ./searchers/nix-package-search.nix { };
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@ -1,2 +1,185 @@
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# TODO:
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{ pkgs, ... }: pkgs.emptyFile
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{ pkgs, lib, nixpkgs, defaultManualPath, system, json2nix, ... }:
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let
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usage = pkgs.writeText "nix-option-search-usage" ''
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Usage:
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nix-option-search [ -j | -n ] [-f=<flake-url> [-r=<git-reference>]]
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Options:
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-h | --help Display this message.
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-j | --json Display raw data in json format.
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-np | --no-preview Don't display a preview.
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-nc | --no-color Turn off ANSI colors.
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-f=* | --flake=* Use a flake url to an instance (e.g. a fork) of nixpkgs,
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generate its options, and use those instead of the global ones.
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-r=* | --ref=* If a flake url is specified, this option might be used to choose
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a specific reference (branch, tag, commit, etc.) to use for
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generating the docs.
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Example usage:
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nix-option-search
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nix-option-search -j
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nix-option-search --flake="github:NixOS/nixpkgs"
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nix-option-search --flake="github:NixOS/nixpkgs" --ref="nixos-22.05"
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'';
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inherit (pkgs.callPackage ../internals/lib.nix { })
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jq fzf gomplate nixfmt bat perl blinkred bold red green yellow blue magenta
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clear flatten;
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# TODO: Preprocess all XML tags in description.
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substitutionsColor = let s = "\\s*";
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in {
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"<code>([^>]*)</code>" = "${bold}`$1`${clear}";
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"<command>([^>]*)</command>" = "${bold}`$1`${clear}";
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"<filename>([^>]*)</filename>" = "${yellow}$1${clear}";
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"<emphasis>([^>]*)</emphasis>" = "${bold}$1${clear}";
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"<literal>([^>]*)</literal>" = "${red}$1${clear}";
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"<varname>([^>]*)</varname>" = "${red}$1${clear}";
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"</para><para>" = "\\n";
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"<link${s}xlink:href=\"([^>]*)\"${s}/>" = "${blue}$1${clear}";
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"<link${s}xlink:href=\"([^>]*)\"${s}>([^<]*)</link>" =
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"${bold}$2 ${clear}(${blue}$1${clear})";
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"<xref${s}linkend=\"opt-([^>]*)\"${s}/>" = "${blue}$1${clear}";
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};
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substitutions = let s = "\\s*";
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in {
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"<code>([^>]*)</code>" = "`$1`";
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"<command>([^>]*)</command>" = "`$1`";
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"<filename>([^>]*)</filename>" = "`$1`";
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"<emphasis>([^>]*)</emphasis>" = "`$1`";
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"<literal>([^>]*)</literal>" = "`$1`";
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"<varname>([^>]*)</varname>" = "`$1`";
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"</para><para>" = "\\n";
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"<link${s}xlink:href=\"([^>]*)\"${s}/>" = "`$1`";
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"<link${s}xlink:href=\"([^>]*)\"${s}>([^<]*)</link>" = "`$2 ($1)`";
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"<xref${s}linkend=\"opt-([^>]*)\"${s}/>" = "`$1`";
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};
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perlArgsColor = with lib;
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pipe substitutionsColor [
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(mapAttrsToList (name: value: "s|${name}|${value}|gm"))
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(concatStringsSep ";")
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(x: "-pe '${x}'")
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];
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perlArgs = with lib;
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pipe substitutions [
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(mapAttrsToList (name: value: "s|${name}|${value}|gm"))
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(concatStringsSep ";")
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(x: "-pe '${x}'")
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];
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optionTemplateColor =
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pkgs.callPackage ../templates/option-preview-template-color.nix { };
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optionTemplate =
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pkgs.callPackage ../templates/option-preview-template.nix { };
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# TODO: This preview does not respect the color option...
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previewJson = pkgs.writers.writeBash "preview-nix-option-attrs-json" ''
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OPTION_KEY=$1
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JSON_MANUAL_PATH=$2
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${jq} -C ".\"$OPTION_KEY\"" $JSON_MANUAL_PATH
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'';
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previewGomplate = isColorized:
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let
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# TODO: Color management here needs a refactoring badly...
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pArgs = if isColorized then perlArgsColor else perlArgs;
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colorSuffix = if isColorized then "-color" else "";
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batColorArg = if isColorized then "--color=always " else "";
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template = if isColorized then optionTemplateColor else optionTemplate;
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in pkgs.writers.writeBash
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"preview-nix-option-attrs-gomplate${colorSuffix}" ''
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OPTION_KEY=$1
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JSON_MANUAL_PATH=$2
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JSON_DATA=$(${jq} ".\"$OPTION_KEY\"" $JSON_MANUAL_PATH)
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export DESCRIPTION=$(echo $JSON_DATA | ${jq} -r ".description" | ${perl} ${pArgs})
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EXAMPLE_DATA=$(echo $JSON_DATA | ${jq} -r ".example.text" 2>/dev/null)
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if [ $? != 0 ]; then
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EXAMPLE_DATA=$(echo $JSON_DATA | ${jq} -r ".example" | ${json2nix}/bin/json2nix)
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fi
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export EXAMPLE=$(echo $EXAMPLE_DATA | ${nixfmt} | ${bat} ${batColorArg}--style=numbers)
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export DEFAULT=$(echo $JSON_DATA | ${jq} -r ".default" | ${json2nix}/bin/json2nix | ${nixfmt} | ${bat} ${batColorArg}--style=numbers)
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echo $JSON_DATA | ${gomplate} --datasource opt=stdin:?type=application/json --file ${template}
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'';
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in pkgs.writers.writeBash "search-nix-option-attrs" ''
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JSON_MANUAL_PATH="${defaultManualPath}"
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for i in "$@"; do
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case $i in
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-h|--help)
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cat ${usage}
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exit 0
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;;
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-j|--json)
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PRINT_JSON=1
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shift
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;;
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-np|--no-preview)
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NO_PREVIEW=1
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shift
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;;
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-nc|--no-color)
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NO_COLOR=1
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shift
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;;
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-f=*|--flake=*)
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FLAKE="''${i#*=}"
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shift
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;;
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-r=*|--ref=*)
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REF="''${i#*=}"
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shift
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;;
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*|-*|--*)
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echo "Unknown option $i"
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cat ${usage}
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exit 1
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;;
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esac
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done
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if [ -v PRINT_JSON ] && [ -v NO_PREVIEW ]; then
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echo "Cannot preview as json with no-preview enabled"
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cat ${usage}
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exit 1
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fi
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if [ -v FLAKE ]; then
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FLAKE_URL="''${FLAKE}"
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if [ -v REF ]; then
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FLAKE_URL="''${FLAKE_URL}?ref=$REF"
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fi
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echo "Building docs from $FLAKE_URL"
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OUT_PATH=$(${pkgs.nix}/bin/nix build --impure --no-link --print-out-paths --no-write-lock-file --expr "let nixpkgs=(builtins.getFlake \"$FLAKE_URL\"); in (import \"\''${nixpkgs}/nixos/release.nix\" { inherit nixpkgs; }).options")
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echo $OUT_PATH
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JSON_MANUAL_PATH="$OUT_PATH/share/doc/nixos/options.json"
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echo "Using docs located at $JSON_MANUAL_PATH"
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fi
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if [ -v NO_PREVIEW ]; then
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${jq} -r 'keys | .[] | .' $JSON_MANUAL_PATH | ${fzf}
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elif [ -v PRINT_JSON ]; then
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${jq} -r 'keys | .[] | .' $JSON_MANUAL_PATH | ${fzf} --preview "${previewJson} {} $JSON_MANUAL_PATH"
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elif [ -v NO_COLOR ]; then
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${jq} -r 'keys | .[] | .' $JSON_MANUAL_PATH | ${fzf} --preview "${
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previewGomplate false
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} {} $JSON_MANUAL_PATH"
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else
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${jq} -r 'keys | .[] | .' $JSON_MANUAL_PATH | ${fzf} --preview "${
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previewGomplate true
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} {} $JSON_MANUAL_PATH"
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fi
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''
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