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refator: put all modules under modules directory
This commit is contained in:
Jaka Hudoklin
parent
e3b788c5dc
commit
da12e2a319
32 changed files with 148 additions and 580739 deletions
332
generators/istio/default.nix
Normal file
332
generators/istio/default.nix
Normal file
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@ -0,0 +1,332 @@
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{ pkgs ? import <nixpkgs> {}, lib ? pkgs.lib, spec ? ./istio-schema.json }:
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with lib;
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let
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gen = rec {
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mkMerge = values: ''mkMerge [${concatMapStrings (value: "
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${value}
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") values}]'';
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toNixString = value: if isAttrs value || isList value
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then builtins.toJSON value
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else if isString value
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then ''"${value}"''
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else if value == null
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then "null"
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else builtins.toString value;
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removeEmptyLines = str: concatStringsSep "\n" (filter (l: (builtins.match "( |)+" l) == null) (splitString "\n" str));
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mkOption = {
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description ? null,
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type ? null,
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default ? null,
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apply ? null
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}: removeEmptyLines ''mkOption {
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${optionalString (description != null) "description = ${builtins.toJSON description};"}
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${optionalString (type != null) ''type = ${type};''}
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${optionalString (default != null) ''default = ${toNixString default};''}
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${optionalString (apply != null) ''apply = ${apply};''}
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}'';
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mkOverride = priority: value: "mkOverride ${toString priority} ${toNixString value}";
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types = {
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unspecified = "types.unspecified";
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str = "types.str";
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int = "types.int";
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bool = "types.bool";
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attrs = "types.attrs";
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nullOr = val: "(types.nullOr ${val})";
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attrsOf = val: "(types.attrsOf ${val})";
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listOf = val: "(types.listOf ${val})";
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coercedTo = coercedType: coerceFunc: finalType:
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"(types.coercedTo ${coercedType} ${coerceFunc} ${finalType})";
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either = val1: val2: "(types.either ${val1} ${val2})";
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loaOf = type: "(types.loaOf ${type})";
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};
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hasTypeMapping = def:
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hasAttr "type" def &&
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elem def.type ["string" "integer" "boolean"];
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mergeValuesByKey = mergeKey: ''(mergeValuesByKey "${mergeKey}")'';
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mapType = def:
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if def.type == "string" then
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if hasAttr "format" def && def.format == "int-or-string"
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then types.either types.int types.str
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else types.str
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else if def.type == "integer" then types.int
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else if def.type == "number" then types.int
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else if def.type == "boolean" then types.bool
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else if def.type == "object" then types.attrs
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else throw "type ${def.type} not supported";
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submoduleOf = definitions: ref: ''(submoduleOf "${ref}")'';
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submoduleForDefinition = ref: name: kind: group: version:
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''(submoduleForDefinition "${ref}" "${name}" "${kind}" "${group}" "${version}")'';
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coerceAttrsOfSubmodulesToListByKey = ref: mergeKey:
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''(coerceAttrsOfSubmodulesToListByKey "${ref}" "${mergeKey}")'';
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attrsToList = "values: if values != null then mapAttrsToList (n: v: v) values else values";
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refDefinition = attr: head (tail (tail (splitString "/" attr."$ref")));
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};
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fixJSON = content: replaceStrings ["\\u"] ["u"] content;
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fetchSpecs = path: builtins.fromJSON (fixJSON (builtins.readFile path));
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genDefinitions = swagger: with gen; (mapAttrs (name: definition:
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# if $ref is in definition it means it's an alias of other definition
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if hasAttr "$ref" definition
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then definitions."${refDefinition definition}"
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else if !(hasAttr "properties" definition)
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then {
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type = mapType definition;
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}
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else {
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options = mapAttrs (propName: property:
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let
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isRequired = elem propName (definition.required or []);
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requiredOrNot = type: if isRequired then type else types.nullOr type;
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optionProperties =
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# if $ref is in property it references other definition,
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# but if other definition does not have properties, then just take it's type
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if hasAttr "$ref" property then
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if hasTypeMapping swagger.definitions.${refDefinition property} then {
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type = requiredOrNot (mapType swagger.definitions.${refDefinition property});
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}
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else {
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type = requiredOrNot (submoduleOf definitions (refDefinition property));
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}
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else if !(hasAttr "type" property) then {
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type = types.unspecified;
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}
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# if property has an array type
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else if property.type == "array" then
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# if reference is in items it can reference other type of another
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# definition
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if hasAttr "$ref" property.items then
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# if it is a reference to simple type
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if hasTypeMapping swagger.definitions.${refDefinition property.items}
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then {
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type = requiredOrNot (types.listOf (mapType swagger.definitions.${refDefinition property.items}.type));
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}
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# if a reference is to complex type
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else
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# if x-kubernetes-patch-merge-key is set then make it an
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# attribute set of submodules
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if hasAttr "x-kubernetes-patch-merge-key" property
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then let
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mergeKey = property."x-kubernetes-patch-merge-key";
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in {
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type = requiredOrNot (coerceAttrsOfSubmodulesToListByKey (refDefinition property.items) mergeKey);
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apply = attrsToList;
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}
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# in other case it's a simple list
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else {
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type = requiredOrNot (types.listOf (submoduleOf definitions (refDefinition property.items)));
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}
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# in other case it only references a simple type
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else {
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type = requiredOrNot (types.listOf (mapType property.items));
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}
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else if property.type == "object" && hasAttr "additionalProperties" property
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then
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# if it is a reference to simple type
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if (
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hasAttr "$ref" property.additionalProperties &&
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hasTypeMapping swagger.definitions.${refDefinition property.additionalProperties}
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) then {
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type = requiredOrNot (types.attrsOf (mapType swagger.definitions.${refDefinition property.additionalProperties}));
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}
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else if hasAttr "$ref" property.additionalProperties
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then {
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type = requiredOrNot types.attrs;
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}
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# if is an array
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else if property.additionalProperties.type == "array"
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then {
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type = requiredOrNot (types.loaOf (mapType property.additionalProperties.items));
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}
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else {
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type = requiredOrNot (types.attrsOf (mapType property.additionalProperties));
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}
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# just a simple property
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else {
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type = requiredOrNot (mapType property);
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};
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in mkOption ({
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description = property.description or "";
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} // optionProperties)
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) definition.properties;
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config =
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let
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optionalProps = filterAttrs (propName: property:
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!(elem propName (definition.required or []))
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) definition.properties;
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in mapAttrs (name: property: mkOverride 1002 null) optionalProps;
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}
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) swagger.definitions);
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genResources = swagger: (mapAttrsToList (name: property: rec {
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splittedType = splitString "." (removePrefix "me.snowdrop.istio.api." property.javaType);
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group = (concatStringsSep "." (take ((length splittedType) - 2) splittedType)) + ".istio.io";
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kind = removeSuffix "Spec" (last splittedType);
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version = last (take ((length splittedType) - 1) splittedType);
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ref = removePrefix "#/definitions/" property."$ref";
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})
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(filterAttrs (name: property:
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(hasPrefix "me.snowdrop.istio.api" property.javaType) &&
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hasSuffix "Spec" property.javaType
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) swagger.properties)) ++ (mapAttrsToList (name: property: rec {
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splittedType = splitString "." (removePrefix "me.snowdrop.istio.mixer." property.javaType);
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group = "config.istio.io";
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version = "v1alpha2";
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kind = head (tail splittedType);
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ref = removePrefix "#/definitions/" property."$ref";
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}) (filterAttrs (name: property:
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(hasPrefix "me.snowdrop.istio.mixer" property.javaType) &&
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hasSuffix "Spec" property.javaType
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) swagger.properties));
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swagger = fetchSpecs spec;
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definitions = genDefinitions swagger;
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in pkgs.writeText "gen.nix"
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"# This file was generated with kubenix k8s generator, do not edit
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{lib, config, ... }:
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with lib;
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let
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types = lib.types // rec {
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str = mkOptionType {
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name = \"str\";
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description = \"string\";
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check = isString;
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merge = mergeEqualOption;
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};
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# Either value of type `finalType` or `coercedType`, the latter is
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# converted to `finalType` using `coerceFunc`.
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coercedTo = coercedType: coerceFunc: finalType:
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mkOptionType rec {
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name = \"coercedTo\";
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description = \"\${finalType.description} or \${coercedType.description}\";
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check = x: finalType.check x || coercedType.check x;
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merge = loc: defs:
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let
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coerceVal = val:
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if finalType.check val then val
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else let
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coerced = coerceFunc val;
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in assert finalType.check coerced; coerced;
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in finalType.merge loc (map (def: def // { value = coerceVal def.value; }) defs);
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getSubOptions = finalType.getSubOptions;
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getSubModules = finalType.getSubModules;
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substSubModules = m: coercedTo coercedType coerceFunc (finalType.substSubModules m);
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typeMerge = t1: t2: null;
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functor = (defaultFunctor name) // { wrapped = finalType; };
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};
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};
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mkOptionDefault = mkOverride 1001;
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extraOptions = {
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kubenix = {};
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};
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mergeValuesByKey = mergeKey: values:
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listToAttrs (map
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(value: nameValuePair (
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if isAttrs value.\${mergeKey}
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then toString value.\${mergeKey}.content
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else (toString value.\${mergeKey})
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) value)
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values);
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submoduleOf = ref: types.submodule ({name, ...}: {
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options = definitions.\"\${ref}\".options;
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config = definitions.\"\${ref}\".config;
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});
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submoduleWithMergeOf = ref: mergeKey: types.submodule ({name, ...}: let
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convertName = name:
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if definitions.\"\${ref}\".options.\${mergeKey}.type == types.int
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then toInt name
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else name;
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in {
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options = definitions.\"\${ref}\".options;
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config = definitions.\"\${ref}\".config // {
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\${mergeKey} = mkOverride 1002 (convertName name);
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};
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});
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submoduleForDefinition = ref: resource: kind: group: version:
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types.submodule ({name, ...}: {
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options = definitions.\"\${ref}\".options // extraOptions;
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config = mkMerge ([
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definitions.\"\${ref}\".config
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{
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kind = mkOptionDefault kind;
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apiVersion = mkOptionDefault version;
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# metdata.name cannot use option default, due deep config
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metadata.name = mkOptionDefault name;
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}
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] ++ (config.defaults.\${resource} or [])
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++ (config.defaults.all or []));
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});
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coerceAttrsOfSubmodulesToListByKey = ref: mergeKey: (types.coercedTo
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(types.listOf (submoduleOf ref))
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(mergeValuesByKey mergeKey)
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(types.attrsOf (submoduleWithMergeOf ref mergeKey))
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);
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definitions = {
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${concatStrings (mapAttrsToList (name: value: "
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\"${name}\" = {${optionalString (hasAttr "options" value) "
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options = {${concatStrings (mapAttrsToList (name: value: "
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\"${name}\" = ${value};
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") value.options)}};
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"}${optionalString (hasAttr "config" value) "
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config = {${concatStrings (mapAttrsToList (name: value: "
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\"${name}\" = ${value};
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") value.config)}};
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"}};
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") definitions)}
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} // (import ./overrides.nix {inheirt definitions lib;}));
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in {
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kubernetes.customResources = [
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${concatMapStrings (resource: ''{
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group = "${resource.group}";
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version = "${resource.version}";
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kind = "${resource.kind}";
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description = "";
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module = definitions."${resource.ref}";
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}'') (genResources swagger)}
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];
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}
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"
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