142 lines
4.5 KiB
Nix
142 lines
4.5 KiB
Nix
{ pkgs, lib, home-manager, defaultManualPath, system, json2nix, docbook2txt, ...
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}:
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let
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usage = pkgs.writeText "home-manager-search-usage" ''
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Usage:
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home-manager-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 home-manager,
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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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home-manager-search
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home-manager-search -j
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home-manager-search --flake="github:nix-community/home-manager"
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home-manager-search --flake="github:nix-community/home-manager" --ref="release-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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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-home-manager-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\"" $JSON_MANUAL_PATH
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'';
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previewGomplate = isColorized:
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let
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# TODO: Color management here needs a refactoring badly...
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colorSuffix = if isColorized then "-color" else "";
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batColorArg = if isColorized then "-f " else "";
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docbook2txtColorArg = if isColorized then "-C " else "";
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template = if isColorized then optionTemplateColor else optionTemplate;
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in pkgs.writers.writeBash
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"preview-home-manager-attrs-gomplate${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" | ${docbook2txt}/bin/docbook2txt ${docbook2txtColorArg})
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EXAMPLE_DATA=$(echo $JSON_DATA | ${jq} -r ".example.text" 2>/dev/null | ${nixfmt})
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if [ $? != 0 ]; then
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EXAMPLE_DATA=$(echo $JSON_DATA | ${jq} ".example" | ${json2nix}/bin/json2nix)
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fi
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export EXAMPLE=$(echo $EXAMPLE_DATA | ${bat} ${batColorArg}--style=numbers -lnix)
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export DEFAULT=$(echo $JSON_DATA | ${jq} ".default" | ${json2nix}/bin/json2nix | ${bat} ${batColorArg}--style=numbers -lnix)
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echo $JSON_DATA | ${gomplate} --datasource opt=stdin:?type=application/json --file ${template}
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'';
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in pkgs.writers.writeBash "search-home-manager-attrs" ''
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JSON_MANUAL_PATH="${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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FLAKE_URL="''${FLAKE_URL}#docs-json"
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echo "Building docs from $FLAKE_URL"
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OUT_PATH=$(${pkgs.nix}/bin/nix build "$FLAKE_URL" --no-link --print-out-paths --no-write-lock-file)
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JSON_MANUAL_PATH="$OUT_PATH/share/doc/home-manager/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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