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normalize-options.js
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215 lines (190 loc) · 5.45 KB
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import * as vnopts from "vnopts";
/**
* @typedef {import("./support.js").NamedOptionInfo} NamedOptionInfo
*/
let hasDeprecationWarned;
/**
* @param {*} options
* @param {*} optionInfos
* @param {{ logger?: false; isCLI?: boolean; passThrough?: string[] | boolean; FlagSchema?: any; descriptor?: any }} param2
*/
function normalizeOptions(
options,
optionInfos,
{
logger = false,
isCLI = false,
passThrough = false,
FlagSchema,
descriptor,
} = {},
) {
// TODO: Move CLI related part into `/src/cli`
if (isCLI) {
/* c8 ignore start */
if (!FlagSchema) {
throw new Error("'FlagSchema' option is required.");
}
if (!descriptor) {
throw new Error("'descriptor' option is required.");
}
/* c8 ignore stop */
} else {
descriptor = vnopts.apiDescriptor;
}
const unknown = !passThrough
? (key, value, options) => {
// Don't suggest `_` for unknown flags
const { _, ...schemas } = options.schemas;
return vnopts.levenUnknownHandler(key, value, {
...options,
schemas,
});
}
: Array.isArray(passThrough)
? (key, value) =>
!passThrough.includes(key) ? undefined : { [key]: value }
: (key, value) => ({ [key]: value });
const schemas = optionInfosToSchemas(optionInfos, { isCLI, FlagSchema });
const normalizer = new vnopts.Normalizer(schemas, {
logger,
unknown,
descriptor,
});
const shouldSuppressDuplicateDeprecationWarnings = logger !== false;
if (shouldSuppressDuplicateDeprecationWarnings && hasDeprecationWarned) {
// @ts-expect-error
normalizer._hasDeprecationWarned = hasDeprecationWarned;
}
const normalized = normalizer.normalize(options);
if (shouldSuppressDuplicateDeprecationWarnings) {
// @ts-expect-error
hasDeprecationWarned = normalizer._hasDeprecationWarned;
}
return normalized;
}
function optionInfosToSchemas(optionInfos, { isCLI, FlagSchema }) {
const schemas = [];
if (isCLI) {
schemas.push(vnopts.AnySchema.create({ name: "_" }));
}
for (const optionInfo of optionInfos) {
schemas.push(
optionInfoToSchema(optionInfo, {
isCLI,
optionInfos,
FlagSchema,
}),
);
if (optionInfo.alias && isCLI) {
schemas.push(
vnopts.AliasSchema.create({
// @ts-expect-error
name: optionInfo.alias,
sourceName: optionInfo.name,
}),
);
}
}
return schemas;
}
/**
* @param {NamedOptionInfo} optionInfo
* @param {any} param1
* @returns
*/
function optionInfoToSchema(optionInfo, { isCLI, optionInfos, FlagSchema }) {
const { name } = optionInfo;
const parameters = { name };
let SchemaConstructor;
const handlers = {};
switch (optionInfo.type) {
case "int":
SchemaConstructor = vnopts.IntegerSchema;
if (isCLI) {
parameters.preprocess = Number;
}
break;
case "string":
SchemaConstructor = vnopts.StringSchema;
break;
case "choice":
SchemaConstructor = vnopts.ChoiceSchema;
parameters.choices = optionInfo.choices.map((choiceInfo) =>
choiceInfo?.redirect
? {
...choiceInfo,
redirect: {
to: { key: optionInfo.name, value: choiceInfo.redirect },
},
}
: choiceInfo,
);
break;
case "boolean":
SchemaConstructor = vnopts.BooleanSchema;
break;
case "flag":
// Only available when normalizing CLI options
SchemaConstructor = FlagSchema;
parameters.flags = optionInfos.flatMap((optionInfo) =>
[
optionInfo.alias,
optionInfo.description && optionInfo.name,
optionInfo.oppositeDescription && `no-${optionInfo.name}`,
].filter(Boolean),
);
break;
case "path":
SchemaConstructor = vnopts.StringSchema;
break;
default:
/* c8 ignore next */
throw new Error(`Unexpected type ${optionInfo.type}`);
}
if (optionInfo.exception) {
parameters.validate = (value, schema, utils) =>
optionInfo.exception(value) || schema.validate(value, utils);
} else {
parameters.validate = (value, schema, utils) =>
value === undefined || schema.validate(value, utils);
}
/* c8 ignore start */
if (optionInfo.redirect) {
handlers.redirect = (value) =>
!value
? undefined
: {
to:
typeof optionInfo.redirect === "string"
? optionInfo.redirect
: {
key: optionInfo.redirect.option,
value: optionInfo.redirect.value,
},
};
}
/* c8 ignore stop */
/* c8 ignore next 3 */
if (optionInfo.deprecated) {
handlers.deprecated = true;
}
// allow CLI overriding, e.g., prettier package.json --tab-width 1 --tab-width 2
if (isCLI && !optionInfo.array) {
const originalPreprocess = parameters.preprocess || ((x) => x);
parameters.preprocess = (value, schema, utils) =>
schema.preprocess(
originalPreprocess(Array.isArray(value) ? value.at(-1) : value),
utils,
);
}
return optionInfo.array
? vnopts.ArraySchema.create({
...(isCLI ? { preprocess: (v) => (Array.isArray(v) ? v : [v]) } : {}),
...handlers,
// @ts-expect-error
valueSchema: SchemaConstructor.create(parameters),
})
: SchemaConstructor.create({ ...parameters, ...handlers });
}
export default normalizeOptions;