521 lines
14 KiB
Plaintext
521 lines
14 KiB
Plaintext
/**
|
||
* @typedef {import('unist').Node} Node
|
||
* @typedef {import('unist').Position} Position
|
||
* @typedef {import('unist').Point} Point
|
||
* @typedef {import('./minurl.shared.js').URL} URL
|
||
* @typedef {import('../index.js').Data} Data
|
||
* @typedef {import('../index.js').Value} Value
|
||
*/
|
||
|
||
/**
|
||
* @typedef {Record<string, unknown> & {type: string, position?: Position | undefined}} NodeLike
|
||
*
|
||
* @typedef {'ascii' | 'utf8' | 'utf-8' | 'utf16le' | 'ucs2' | 'ucs-2' | 'base64' | 'base64url' | 'latin1' | 'binary' | 'hex'} BufferEncoding
|
||
* Encodings supported by the buffer class.
|
||
*
|
||
* This is a copy of the types from Node, copied to prevent Node globals from
|
||
* being needed.
|
||
* Copied from: <https://github.com/DefinitelyTyped/DefinitelyTyped/blob/90a4ec8/types/node/buffer.d.ts#L170>
|
||
*
|
||
* @typedef {Options | URL | Value | VFile} Compatible
|
||
* Things that can be passed to the constructor.
|
||
*
|
||
* @typedef VFileCoreOptions
|
||
* Set multiple values.
|
||
* @property {Value | null | undefined} [value]
|
||
* Set `value`.
|
||
* @property {string | null | undefined} [cwd]
|
||
* Set `cwd`.
|
||
* @property {Array<string> | null | undefined} [history]
|
||
* Set `history`.
|
||
* @property {URL | string | null | undefined} [path]
|
||
* Set `path`.
|
||
* @property {string | null | undefined} [basename]
|
||
* Set `basename`.
|
||
* @property {string | null | undefined} [stem]
|
||
* Set `stem`.
|
||
* @property {string | null | undefined} [extname]
|
||
* Set `extname`.
|
||
* @property {string | null | undefined} [dirname]
|
||
* Set `dirname`.
|
||
* @property {Data | null | undefined} [data]
|
||
* Set `data`.
|
||
*
|
||
* @typedef Map
|
||
* Raw source map.
|
||
*
|
||
* See:
|
||
* <https://github.com/mozilla/source-map/blob/58819f0/source-map.d.ts#L15-L23>.
|
||
* @property {number} version
|
||
* Which version of the source map spec this map is following.
|
||
* @property {Array<string>} sources
|
||
* An array of URLs to the original source files.
|
||
* @property {Array<string>} names
|
||
* An array of identifiers which can be referenced by individual mappings.
|
||
* @property {string | undefined} [sourceRoot]
|
||
* The URL root from which all sources are relative.
|
||
* @property {Array<string> | undefined} [sourcesContent]
|
||
* An array of contents of the original source files.
|
||
* @property {string} mappings
|
||
* A string of base64 VLQs which contain the actual mappings.
|
||
* @property {string} file
|
||
* The generated file this source map is associated with.
|
||
*
|
||
* @typedef {{[key: string]: unknown} & VFileCoreOptions} Options
|
||
* Configuration.
|
||
*
|
||
* A bunch of keys that will be shallow copied over to the new file.
|
||
*
|
||
* @typedef {Record<string, unknown>} ReporterSettings
|
||
* Configuration for reporters.
|
||
*/
|
||
|
||
/**
|
||
* @template {ReporterSettings} Settings
|
||
* Options type.
|
||
* @callback Reporter
|
||
* Type for a reporter.
|
||
* @param {Array<VFile>} files
|
||
* Files to report.
|
||
* @param {Settings} options
|
||
* Configuration.
|
||
* @returns {string}
|
||
* Report.
|
||
*/
|
||
|
||
import bufferLike from 'is-buffer'
|
||
import {VFileMessage} from 'vfile-message'
|
||
import {path} from './minpath.js'
|
||
import {proc} from './minproc.js'
|
||
import {urlToPath, isUrl} from './minurl.js'
|
||
|
||
/**
|
||
* Order of setting (least specific to most), we need this because otherwise
|
||
* `{stem: 'a', path: '~/b.js'}` would throw, as a path is needed before a
|
||
* stem can be set.
|
||
*
|
||
* @type {Array<'basename' | 'dirname' | 'extname' | 'history' | 'path' | 'stem'>}
|
||
*/
|
||
const order = ['history', 'path', 'basename', 'stem', 'extname', 'dirname']
|
||
|
||
export class VFile {
|
||
/**
|
||
* Create a new virtual file.
|
||
*
|
||
* `options` is treated as:
|
||
*
|
||
* * `string` or `Buffer` — `{value: options}`
|
||
* * `URL` — `{path: options}`
|
||
* * `VFile` — shallow copies its data over to the new file
|
||
* * `object` — all fields are shallow copied over to the new file
|
||
*
|
||
* Path related fields are set in the following order (least specific to
|
||
* most specific): `history`, `path`, `basename`, `stem`, `extname`,
|
||
* `dirname`.
|
||
*
|
||
* You cannot set `dirname` or `extname` without setting either `history`,
|
||
* `path`, `basename`, or `stem` too.
|
||
*
|
||
* @param {Compatible | null | undefined} [value]
|
||
* File value.
|
||
* @returns
|
||
* New instance.
|
||
*/
|
||
constructor(value) {
|
||
/** @type {Options | VFile} */
|
||
let options
|
||
|
||
if (!value) {
|
||
options = {}
|
||
} else if (typeof value === 'string' || buffer(value)) {
|
||
options = {value}
|
||
} else if (isUrl(value)) {
|
||
options = {path: value}
|
||
} else {
|
||
options = value
|
||
}
|
||
|
||
/**
|
||
* Place to store custom information (default: `{}`).
|
||
*
|
||
* It’s OK to store custom data directly on the file but moving it to
|
||
* `data` is recommended.
|
||
*
|
||
* @type {Data}
|
||
*/
|
||
this.data = {}
|
||
|
||
/**
|
||
* List of messages associated with the file.
|
||
*
|
||
* @type {Array<VFileMessage>}
|
||
*/
|
||
this.messages = []
|
||
|
||
/**
|
||
* List of filepaths the file moved between.
|
||
*
|
||
* The first is the original path and the last is the current path.
|
||
*
|
||
* @type {Array<string>}
|
||
*/
|
||
this.history = []
|
||
|
||
/**
|
||
* Base of `path` (default: `process.cwd()` or `'/'` in browsers).
|
||
*
|
||
* @type {string}
|
||
*/
|
||
this.cwd = proc.cwd()
|
||
|
||
/* eslint-disable no-unused-expressions */
|
||
/**
|
||
* Raw value.
|
||
*
|
||
* @type {Value}
|
||
*/
|
||
this.value
|
||
|
||
// The below are non-standard, they are “well-known”.
|
||
// As in, used in several tools.
|
||
|
||
/**
|
||
* Whether a file was saved to disk.
|
||
*
|
||
* This is used by vfile reporters.
|
||
*
|
||
* @type {boolean}
|
||
*/
|
||
this.stored
|
||
|
||
/**
|
||
* Custom, non-string, compiled, representation.
|
||
*
|
||
* This is used by unified to store non-string results.
|
||
* One example is when turning markdown into React nodes.
|
||
*
|
||
* @type {unknown}
|
||
*/
|
||
this.result
|
||
|
||
/**
|
||
* Source map.
|
||
*
|
||
* This type is equivalent to the `RawSourceMap` type from the `source-map`
|
||
* module.
|
||
*
|
||
* @type {Map | null | undefined}
|
||
*/
|
||
this.map
|
||
/* eslint-enable no-unused-expressions */
|
||
|
||
// Set path related properties in the correct order.
|
||
let index = -1
|
||
|
||
while (++index < order.length) {
|
||
const prop = order[index]
|
||
|
||
// Note: we specifically use `in` instead of `hasOwnProperty` to accept
|
||
// `vfile`s too.
|
||
if (
|
||
prop in options &&
|
||
options[prop] !== undefined &&
|
||
options[prop] !== null
|
||
) {
|
||
// @ts-expect-error: TS doesn’t understand basic reality.
|
||
this[prop] = prop === 'history' ? [...options[prop]] : options[prop]
|
||
}
|
||
}
|
||
|
||
/** @type {string} */
|
||
let prop
|
||
|
||
// Set non-path related properties.
|
||
for (prop in options) {
|
||
// @ts-expect-error: fine to set other things.
|
||
if (!order.includes(prop)) {
|
||
// @ts-expect-error: fine to set other things.
|
||
this[prop] = options[prop]
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Get the full path (example: `'~/index.min.js'`).
|
||
*
|
||
* @returns {string}
|
||
*/
|
||
get path() {
|
||
return this.history[this.history.length - 1]
|
||
}
|
||
|
||
/**
|
||
* Set the full path (example: `'~/index.min.js'`).
|
||
*
|
||
* Cannot be nullified.
|
||
* You can set a file URL (a `URL` object with a `file:` protocol) which will
|
||
* be turned into a path with `url.fileURLToPath`.
|
||
*
|
||
* @param {string | URL} path
|
||
*/
|
||
set path(path) {
|
||
if (isUrl(path)) {
|
||
path = urlToPath(path)
|
||
}
|
||
|
||
assertNonEmpty(path, 'path')
|
||
|
||
if (this.path !== path) {
|
||
this.history.push(path)
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Get the parent path (example: `'~'`).
|
||
*/
|
||
get dirname() {
|
||
return typeof this.path === 'string' ? path.dirname(this.path) : undefined
|
||
}
|
||
|
||
/**
|
||
* Set the parent path (example: `'~'`).
|
||
*
|
||
* Cannot be set if there’s no `path` yet.
|
||
*/
|
||
set dirname(dirname) {
|
||
assertPath(this.basename, 'dirname')
|
||
this.path = path.join(dirname || '', this.basename)
|
||
}
|
||
|
||
/**
|
||
* Get the basename (including extname) (example: `'index.min.js'`).
|
||
*/
|
||
get basename() {
|
||
return typeof this.path === 'string' ? path.basename(this.path) : undefined
|
||
}
|
||
|
||
/**
|
||
* Set basename (including extname) (`'index.min.js'`).
|
||
*
|
||
* Cannot contain path separators (`'/'` on unix, macOS, and browsers, `'\'`
|
||
* on windows).
|
||
* Cannot be nullified (use `file.path = file.dirname` instead).
|
||
*/
|
||
set basename(basename) {
|
||
assertNonEmpty(basename, 'basename')
|
||
assertPart(basename, 'basename')
|
||
this.path = path.join(this.dirname || '', basename)
|
||
}
|
||
|
||
/**
|
||
* Get the extname (including dot) (example: `'.js'`).
|
||
*/
|
||
get extname() {
|
||
return typeof this.path === 'string' ? path.extname(this.path) : undefined
|
||
}
|
||
|
||
/**
|
||
* Set the extname (including dot) (example: `'.js'`).
|
||
*
|
||
* Cannot contain path separators (`'/'` on unix, macOS, and browsers, `'\'`
|
||
* on windows).
|
||
* Cannot be set if there’s no `path` yet.
|
||
*/
|
||
set extname(extname) {
|
||
assertPart(extname, 'extname')
|
||
assertPath(this.dirname, 'extname')
|
||
|
||
if (extname) {
|
||
if (extname.charCodeAt(0) !== 46 /* `.` */) {
|
||
throw new Error('`extname` must start with `.`')
|
||
}
|
||
|
||
if (extname.includes('.', 1)) {
|
||
throw new Error('`extname` cannot contain multiple dots')
|
||
}
|
||
}
|
||
|
||
this.path = path.join(this.dirname, this.stem + (extname || ''))
|
||
}
|
||
|
||
/**
|
||
* Get the stem (basename w/o extname) (example: `'index.min'`).
|
||
*/
|
||
get stem() {
|
||
return typeof this.path === 'string'
|
||
? path.basename(this.path, this.extname)
|
||
: undefined
|
||
}
|
||
|
||
/**
|
||
* Set the stem (basename w/o extname) (example: `'index.min'`).
|
||
*
|
||
* Cannot contain path separators (`'/'` on unix, macOS, and browsers, `'\'`
|
||
* on windows).
|
||
* Cannot be nullified (use `file.path = file.dirname` instead).
|
||
*/
|
||
set stem(stem) {
|
||
assertNonEmpty(stem, 'stem')
|
||
assertPart(stem, 'stem')
|
||
this.path = path.join(this.dirname || '', stem + (this.extname || ''))
|
||
}
|
||
|
||
/**
|
||
* Serialize the file.
|
||
*
|
||
* @param {BufferEncoding | null | undefined} [encoding='utf8']
|
||
* Character encoding to understand `value` as when it’s a `Buffer`
|
||
* (default: `'utf8'`).
|
||
* @returns {string}
|
||
* Serialized file.
|
||
*/
|
||
toString(encoding) {
|
||
return (this.value || '').toString(encoding || undefined)
|
||
}
|
||
|
||
/**
|
||
* Create a warning message associated with the file.
|
||
*
|
||
* Its `fatal` is set to `false` and `file` is set to the current file path.
|
||
* Its added to `file.messages`.
|
||
*
|
||
* @param {string | Error | VFileMessage} reason
|
||
* Reason for message, uses the stack and message of the error if given.
|
||
* @param {Node | NodeLike | Position | Point | null | undefined} [place]
|
||
* Place in file where the message occurred.
|
||
* @param {string | null | undefined} [origin]
|
||
* Place in code where the message originates (example:
|
||
* `'my-package:my-rule'` or `'my-rule'`).
|
||
* @returns {VFileMessage}
|
||
* Message.
|
||
*/
|
||
message(reason, place, origin) {
|
||
const message = new VFileMessage(reason, place, origin)
|
||
|
||
if (this.path) {
|
||
message.name = this.path + ':' + message.name
|
||
message.file = this.path
|
||
}
|
||
|
||
message.fatal = false
|
||
|
||
this.messages.push(message)
|
||
|
||
return message
|
||
}
|
||
|
||
/**
|
||
* Create an info message associated with the file.
|
||
*
|
||
* Its `fatal` is set to `null` and `file` is set to the current file path.
|
||
* Its added to `file.messages`.
|
||
*
|
||
* @param {string | Error | VFileMessage} reason
|
||
* Reason for message, uses the stack and message of the error if given.
|
||
* @param {Node | NodeLike | Position | Point | null | undefined} [place]
|
||
* Place in file where the message occurred.
|
||
* @param {string | null | undefined} [origin]
|
||
* Place in code where the message originates (example:
|
||
* `'my-package:my-rule'` or `'my-rule'`).
|
||
* @returns {VFileMessage}
|
||
* Message.
|
||
*/
|
||
info(reason, place, origin) {
|
||
const message = this.message(reason, place, origin)
|
||
|
||
message.fatal = null
|
||
|
||
return message
|
||
}
|
||
|
||
/**
|
||
* Create a fatal error associated with the file.
|
||
*
|
||
* Its `fatal` is set to `true` and `file` is set to the current file path.
|
||
* Its added to `file.messages`.
|
||
*
|
||
* > 👉 **Note**: a fatal error means that a file is no longer processable.
|
||
*
|
||
* @param {string | Error | VFileMessage} reason
|
||
* Reason for message, uses the stack and message of the error if given.
|
||
* @param {Node | NodeLike | Position | Point | null | undefined} [place]
|
||
* Place in file where the message occurred.
|
||
* @param {string | null | undefined} [origin]
|
||
* Place in code where the message originates (example:
|
||
* `'my-package:my-rule'` or `'my-rule'`).
|
||
* @returns {never}
|
||
* Message.
|
||
* @throws {VFileMessage}
|
||
* Message.
|
||
*/
|
||
fail(reason, place, origin) {
|
||
const message = this.message(reason, place, origin)
|
||
|
||
message.fatal = true
|
||
|
||
throw message
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Assert that `part` is not a path (as in, does not contain `path.sep`).
|
||
*
|
||
* @param {string | null | undefined} part
|
||
* File path part.
|
||
* @param {string} name
|
||
* Part name.
|
||
* @returns {void}
|
||
* Nothing.
|
||
*/
|
||
function assertPart(part, name) {
|
||
if (part && part.includes(path.sep)) {
|
||
throw new Error(
|
||
'`' + name + '` cannot be a path: did not expect `' + path.sep + '`'
|
||
)
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Assert that `part` is not empty.
|
||
*
|
||
* @param {string | undefined} part
|
||
* Thing.
|
||
* @param {string} name
|
||
* Part name.
|
||
* @returns {asserts part is string}
|
||
* Nothing.
|
||
*/
|
||
function assertNonEmpty(part, name) {
|
||
if (!part) {
|
||
throw new Error('`' + name + '` cannot be empty')
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Assert `path` exists.
|
||
*
|
||
* @param {string | undefined} path
|
||
* Path.
|
||
* @param {string} name
|
||
* Dependency name.
|
||
* @returns {asserts path is string}
|
||
* Nothing.
|
||
*/
|
||
function assertPath(path, name) {
|
||
if (!path) {
|
||
throw new Error('Setting `' + name + '` requires `path` to be set too')
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Assert `value` is a buffer.
|
||
*
|
||
* @param {unknown} value
|
||
* thing.
|
||
* @returns {value is Buffer}
|
||
* Whether `value` is a Node.js buffer.
|
||
*/
|
||
function buffer(value) {
|
||
return bufferLike(value)
|
||
}
|