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|
import { generate, parse, walk } from "css-tree"
import browserslist from "browserslist"
import bcd from "@mdn/browser-compat-data" with { type: "json" }
import * as semver from "@std/semver"
import type { Arg, Arrayable, Nullable, rw } from "@libs/typing"
import { type levellike as loglevel, Logger } from "@libs/logger"
import { brightGreen, brightMagenta, gray, green, italic, red, yellow } from "@std/fmt/colors"
import { Table } from "@cliffy/table"
export type { Arg, Arrayable, loglevel, Nullable }
const browsers = {
name: [
["chrome", "Chrome"],
["edge", "Edge"],
["safari", "Safari"],
["firefox", "Firefox"],
["ff", "Firefox"],
["opera", "Opera"],
["explorer", "Internet Explorer"],
["ie", "Internet Explorer"],
["chromeandroid", "Android Chrome"],
["and_chr", "Android Chrome"],
["ios_saf", "iOS Safari"],
["samsung", "Samsung Internet"],
["operamini", "Opera Mini"],
["op_mini", "Opera Mini"],
["op_mob", "Opera Mobile"],
["ucandroid", "UC Browser"],
["and_uc", "UC Browser"],
["android", "Android Browser"],
["firefoxandroid", "Android Firefox"],
["and_ff", "Android Firefox"],
["and_qq", "QQ Browser"],
["baidu", "Baidu Browser"],
["kaios", "KaiOS Browser"],
["electron", "Electron"],
["node", "Node.js"],
["blackberry", "BlackBerry"],
["bb", "BlackBerry"],
["ie_mob", "Internet Explorer Mobile"],
],
compatibility: {
chrome: "chrome",
edge: "edge",
safari: "safari",
firefox: "firefox",
ff: "firefox",
opera: "opera",
ie: "ie",
explorer: "ie",
chromeandroid: "chrome_android",
and_chr: "chrome_android",
ios_saf: "safari_ios",
samsung: "samsunginternet_android",
op_mob: "opera_android",
android: "webview_android",
firefoxandroid: "firefox_android",
and_ff: "firefox_android",
},
} as const
const vendors = /^(?:@|::|:)?(?<prefix>-(?:webkit|moz|o|ms|__debug)-)/
export async function compatibility(input: URL | string, { query = "defaults", loglevel, ...options }: { query?: Arrayable<string>; loglevel?: loglevel } & Arg<Report["print"], 1> = {}): Promise<string> {
const code = input instanceof URL ? await fetch(input).then((response) => response.text()) : input
return new Report(query, { loglevel }).for(code).print(options)
}
export class Report {
constructor(query: Arrayable<string>, { loglevel = "error" as loglevel } = {}) {
this.#log = new Logger({ level: loglevel })
browserslist(query).forEach((line: string) => {
const [browser, version] = line.split(" ")
if (!(browser in browsers.compatibility)) {
this.#log.with({ browser, version }).warn("not supported (no compatibility data in database)")
return
}
this.#browsers[browser] ??= []
this.#browsers[browser].push(version)
})
}
readonly #log: Logger
readonly #browsers = {} as Record<browser, version[]>
for(stylesheet: string): report {
const data = [] as data
walk(parse(stylesheet, { positions: true }), (node: ast_node) => {
switch (node.type) {
case "Declaration": {
this.#process(data, "properties", node, node.property, node.value)
break
}
case "PseudoClassSelector": {
this.#process(data, "selectors", node, node.name)
break
}
case "Atrule": {
this.#process(data, "at-rules", node, node.name, node.prelude)
break
}
case "Function": {
this.#process(data, "types", node, node.name)
break
}
}
})
return this.#report(data)
}
#location(location: ast_location) {
const { source: file, start: { line, column } } = location
return { file, line, column }
}
#version(version: string) {
if (version.includes("-")) {
version = version.split("-")[1]
}
version = version.replace("≤", "<=").replace("≥", ">=")
const [[{ major, minor, patch }]] = semver.parseRange(version)
return { major, minor, patch }
}
#search(section: string, name: feature, compatibility = bcd.css[section] as bcd_compatibility, _feature = null as Nullable<string>): Nullable<string> {
for (const feature of Object.keys(compatibility)) {
if (feature === "__compat") {
continue
}
if (name in compatibility[feature]) {
return _feature ?? feature
}
const _search = this.#search(section, name, compatibility[feature] as bcd_compatibility, feature)
if (_search) {
return _search
}
}
return null
}
#preprocess(log: Logger, section: bcd_section, _node: ast_node, name: string, values: ast_value, realname: Nullable<string>, prefix: Nullable<string>, skipped: boolean) {
const original = [...arguments]
if (vendors.test(name)) {
prefix = name.match(vendors)!.groups!.prefix
if (!bcd.css[section][name]) {
realname = name
name = name.replace(vendors, "")
}
}
if ((section === "properties") && (name.startsWith("--"))) {
realname = name
name = "custom-property"
}
if ((section === "types") && /^rgba?$/.test(name)) {
realname = name
name = "color"
}
if ((section === "types") && (name === "var")) {
realname = `${name}()`
name = "custom-property"
section = "properties"
}
if ((section === "types") && (name === "minmax")) {
realname = `${name}()`
name = "grid-template-columns"
section = "properties"
}
const feature = this.#search(section, name)
if (feature) {
log.trace(`found ${name} in [${feature}]`)
realname = name
name = feature
}
if (["src", "format"].includes(name)) {
skipped = true
}
if (original[1] !== section) {
log.trace(`changed section from "${original[1]}" to "${section}"`)
}
if (realname !== null) {
log.trace(`changed name from "${original[3]}" to "${name}"`)
}
return { section, name, _values: values, realname, prefix, skipped }
}
#process(data: data, section: bcd_section, node: ast_node, name: string, _values?: ast_value) {
const location = this.#location(node.loc)
const log = this.#log.with({ location: `${location.line}:${location.column}`, section, name })
let realname = null as Nullable<string>, prefix = null as Nullable<string>, skipped = false
;({ section, name, _values, realname, prefix, skipped } = this.#preprocess(log, section, node, name, _values!, realname, prefix, skipped))
const feature = bcd.css[section][name]?.__compat?.source_file?.replace(/^css\//, "").replace(/\.json$/, "") ?? `${section}/${name}`
const value = _values ? this.#clean(generate(_values) as string) : realname ?? null
let logger = log
if (value !== null) {
logger = log.with({ value })
}
if (skipped) {
logger.debug("skipped")
return
}
for (const browser in this.#browsers) {
for (const version of this.#browsers[browser]) {
logger = logger.with({ browser, version })
const { level, status } = this.#support(logger, bcd.css[section][name] as bcd_compatibility, browser, version, value ? this.#tags(log, value, _values) : [], prefix)
data.push({ feature, browser, version, location, value, level, status: { deprecated: status.deprecated, experimental: status.experimental, nonstandard: !status.standard_track } })
if (!status.deprecated) {
delete (status as rw).deprecated
}
if (!status.experimental) {
delete (status as rw).experimental
}
if (status.standard_track === false) {
Object.assign(status, { nonstandard: true })
}
delete (status as rw).standard_track
logger.with(status).log(level)
}
}
}
#tags(log: Logger, value: value, _values?: ast_value) {
const tags = [value] as tag[]
if (_values) {
walk(_values, (value: ast_value) => {
switch (true) {
case value.type === "Percentage":
tags.push("percentages")
break
case (value.type === "Number") && (Number.parseFloat(value.value) < 0):
tags.push("negative_values")
break
}
})
}
if (tags.length > 1) {
log.debug(`added tags: ${tags.slice(1).join(", ")}`)
}
return tags
}
#support(log: Logger, compatibility: bcd_compatibility | void, browser: browser, version: version, tags: tag[], prefix: Nullable<string>): { level: level; status: bcd_status } {
if (!compatibility) {
return { level: "unknown", status: { standard_track: true, deprecated: false, experimental: false } }
}
const support = compatibility.__compat.support[browsers.compatibility[browser as keyof typeof browsers.compatibility]] ?? compatibility.__compat.support[browser]
const status = compatibility.__compat.status
if (tags?.length) {
for (const tag of tags) {
const _compatibility = this.#value_compatibility(log, compatibility, tag)
if (_compatibility) {
return this.#support(log, _compatibility, browser, version, [], prefix)
}
}
}
if (Array.isArray(support)) {
for (const _support of support) {
const _result = this.#support(log, { __compat: { support: { [browser]: _support }, status } } as bcd_compatibility, browser, version, [], prefix)
if (_result.level !== "unknown") {
return _result
}
}
return { level: "unknown", status }
}
else if (typeof support === "object") {
return { level: this.#test(log, support, version, prefix), status }
}
else if (support === undefined) {
log.warn(`no compatibility data available (available: ${Object.keys(compatibility.__compat.support)})`)
}
else {
log.error("unimplemented support type, please open an issue", support)
}
return { level: "unknown", status }
}
#value_compatibility(log: Logger, compatibility: bcd_compatibility, tag: tag): bcd_compatibility | false {
for (const key in compatibility) {
if (key === "__compat") {
continue
}
const keywords = [key]
if (compatibility[key].__compat.description) {
const description = compatibility[key].__compat.description!
keywords.push(...Array.from(description.matchAll(/^<code>([\s\S]+?)<\/code>$/g)).map((match) => (match as string[])[1]))
}
if (keywords.includes(tag)) {
log.trace(`matched granular rule "${key}"`)
return compatibility[key] as bcd_compatibility
}
const _compatibility = this.#value_compatibility(log, compatibility[key] as bcd_compatibility, tag)
if (_compatibility) {
return _compatibility
}
}
return false
}
#test(log: Logger, support: bcd_support, version: version, prefix: Nullable<string>) {
let level = "unsupported" as level
const tested = this.#version(version)
if (!support.version_added) {
return level
}
const added = this.#version(support.version_added)
if (!semver.greaterOrEqual(tested, added)) {
log.trace(`unsupported prior version ${support.version_added}`)
return level
}
if (support.version_removed) {
const removed = this.#version(support.version_removed)
if (semver.greaterOrEqual(tested, removed)) {
log.trace(`support removed in version ${support.version_removed}`)
return level
}
}
if (support.partial_implementation) {
log.trace(`partially supported since version ${support.version_added}`)
level = "partial"
return level
}
if (support.prefix) {
log.trace(`supported with ${support.prefix} since version ${support.version_added}`)
if (prefix !== support.prefix) {
log.trace(`"${prefix}" does not match required "${support.prefix}"`)
return "prefixed"
}
level = "supported"
} else {
log.trace(`supported since version ${support.version_added}`)
level = "supported"
}
return level
}
#report(data: data) {
const features = {
list: [...new Set<feature>(data.map(({ feature }) => feature))],
status: {
deprecated: {} as feature_map,
experimental: {} as feature_map,
nonstandard: {} as feature_map,
},
support: {
unknown: {} as feature_map,
unsupported: {} as feature_map,
partial: {} as feature_map,
prefixed: {} as feature_map,
supported: {} as feature_map,
},
} as report["features"]
const browsers = {} as report["browsers"]
for (const { feature, browser, version, location, value, level, ...entry } of data) {
for (const status of Object.keys(features.status) as Array<keyof status>) {
if (entry.status[status as keyof status]) {
features.status[status][feature] ??= {}
features.status[status][feature][browser] ??= {}
features.status[status][feature][browser][version] ??= []
features.status[status][feature][browser][version].push({ location, value })
}
}
features.support[level][feature] ??= {}
features.support[level][feature][browser] ??= {}
features.support[level][feature][browser][version] ??= []
features.support[level][feature][browser][version].push({ location, value })
browsers[browser] ??= {}
browsers[browser][version] ??= { support: { unknown: {}, unsupported: {}, partial: {}, prefixed: {}, supported: {} } }
browsers[browser][version].support[level][feature] ??= []
browsers[browser][version].support[level][feature].push({ location, value })
}
const report = { features, browsers } as report
report.print = this.print.bind(this, report)
return report
}
#view(data: ReturnType<Report["for"]>, type: "browsers") {
switch (type) {
case "browsers":
return this.#view_browsers(data)
}
}
#view_browsers(_data: ReturnType<Report["for"]>) {
const columns = Math.max(...Object.entries(this.#browsers).filter(([browser]) => browsers.name.some(([id]) => id === browser)).map(([_, versions]) => versions.length))
const rows = browsers.name.filter(([id]) => id in this.#browsers)
const data = Object.fromEntries(
Object.entries(_data.browsers).map(([browser, versions]) => [
browser,
Object.entries(versions).sort(([a], [b]) => {
if (a.includes("-")) {
a = a.split("-")[1]
}
return Number.parseFloat(b) - Number.parseFloat(a)
}),
]),
)
const table = []
for (const [id, name] of rows) {
const row = [] as Nullable<table_entry>[]
for (let i = 0; i < columns; i++) {
if (!data[id][i]) {
row.push(null)
continue
}
const [version, { support }] = data[id][i]
row.push(this.#view_browsers_cell(id, version, name, support))
}
const support = { unknown: {}, partial: {}, unsupported: {}, prefixed: {}, supported: {} } as Record<level, browser_map>
for (const version of row.filter(Boolean) as table_entry[]) {
for (const level of Object.keys(version.features) as level[]) {
for (const feature in version.features[level]) {
support[level][feature] ??= []
for (const occurence of version.features[level][feature]) {
const { location } = occurence
if (!support[level][feature].some(({ location: { line, column } }) => line === location.line && column === location.column)) {
support[level][feature].push(occurence)
}
}
}
}
}
const summary = this.#view_browsers_cell(id, "all", name, support)
summary.users = row.reduce((total, cell) => total + (cell?.users ?? 0), 0)
row.unshift(summary)
table.push(row)
}
return table
}
#view_browsers_cell(id: string, version: version, name: string, support: Record<level, browser_map>) {
const cell = {
browser: name,
version,
count: {
flat: { unknown: 0, unsupported: 0, partial: 0, prefixed: 0, supported: 0, total: 0 },
percentage: { unknown: 0, unsupported: 0, partial: 0, prefixed: 0, supported: 0 },
},
features: { unknown: {}, unsupported: {}, partial: {}, prefixed: {}, supported: {} },
users: NaN,
}
for (const level of Object.keys(cell.features) as level[]) {
cell.count.flat[level] = Object.keys(support[level]).length
cell.count.flat.total += cell.count.flat[level]
cell.features[level] = support[level]
}
for (const level of Object.keys(cell.features) as level[]) {
cell.count.percentage[level] = 100 * cell.count.flat[level] / cell.count.flat.total
}
try {
cell.users = browserslist.coverage(browserslist(`${id} ${version}`))
} catch {
}
return cell
}
print(data: ReturnType<Report["for"]>, { view = "browsers" as const, output = "console" as "console" | "html", verbose = false, style = true } = {}): string {
const table = this.#view(data, view)
const body = new Array(table[0]?.length).fill(null).map(() => []) as string[][]
for (let i = 0; i < table.length; i++) {
for (let j = 0; j < table[0].length; j++) {
const cell = table[i][j]
if (!cell) {
body[j].push("")
continue
}
let text = j === 0 ? cell.browser : cell.version
text += `\n${this.#color(`${Math.floor(cell.count.percentage.supported)}%`, -2, output)}`
text = this.#color(text, cell.count.percentage.supported, output)
if (verbose) {
for (const level of ["unsupported", "partial", "prefixed", "unknown"] as Exclude<level, "supported">[]) {
for (const feature in cell.features[level]) {
const color = { unknown: NaN, partial: 80, unsupported: 0, prefixed: -1 }[level]
const [type, name] = feature.split("/")
const messages = new Set<string>()
for (const { value } of cell.features[level][feature]) {
let message = ""
switch (type) {
case "at-rules":
message = `@${name}`
break
case "selectors":
message = `:${value ?? name}`
break
case "properties":
message = `${name}: ${value};`
break
case "types":
message = `${name}()`
if (value) {
message = `[${name}] ${value}()`
}
break
}
messages.add(
`\n${this.#color(message, color, output)}`,
)
}
text += [...messages].sort((a, b) => a.localeCompare(b)).join("")
}
}
}
body[j].push(text)
}
}
switch (output) {
case "console":
return new Table().align("center").border(true).body(body).render().toString()
case "html":
return `<table class="css-compatibility-table">\n${
body.map((row, i) => ` <tr>${row.map((cell) => !cell ? ` \n <td data-empty></td>` : `\n <t${i ? "d" : "h"}>\n${cell.replaceAll(/^(<span .*)$/gm, " $1<br>").replaceAll(/\n([^< ].+<\/span>)/g, "$1<br>")}\n </t${i ? "d" : "h"}>`).join("")}\n </tr>`)
.join("\n")
}\n</table>${style ? `\n${Report.styling}` : ""}`
}
}
#color(string: string, value: number, output: "console" | "html") {
switch (true) {
case Number.isNaN(value):
return output === "html" ? `<span data-unknown>${string}</span>` : gray(string)
case value === -2:
return output === "html" ? `<span data-version>${string}</span>` : italic(string)
case value === -1:
return output === "html" ? `<span data-prefix>${string}</span>` : brightMagenta(string)
case value >= 100:
return output === "html" ? `<span data-perfect>${string}</span>` : brightGreen(string)
case value >= 90:
return output === "html" ? `<span data-good>${string}</span>` : green(string)
case value >= 80:
return output === "html" ? `<span data-ok>${string}</span>` : yellow(string)
default:
return output === "html" ? `<span data-bad>${string}</span>` : red(string)
}
}
#clean(string: string) {
return string
.trim()
.replaceAll(/(url|format|attr|var)\(.*?\)/g, "$1()")
.replaceAll(/#[0-9a-fA-F]{3,8}/g, "")
.replaceAll(/rgba?\(.*?\)/g, "")
.replaceAll(/-?(?:(?:\d+(\.d*)?|(?:\d*\.\d+)))([cm]m|p[ctx]|Q|in|%|r?em|v[hw]|[r]lh|m?s|turn)?/g, "")
.replaceAll(/"[^"]*?"/g, "")
.replaceAll(/var\(\)/g, "")
.replaceAll(/\s+/g, " ")
.replaceAll(/,+/g, "")
.trim() || "*"
}
protected static testing() {
Object.assign(bcd.css.properties, {
["-debug-empty-array"]: { __compat: { support: { chrome: [] }, status: { standard_track: false, deprecated: false, experimental: true } } },
["-debug-unimplemented"]: { __compat: { support: { chrome: false }, status: { standard_track: false, deprecated: false, experimental: true } } },
["-debug-prefixed"]: { __compat: { support: { chrome: { version_added: "0", prefix: "-__debug-" } }, status: { standard_track: false, deprecated: false, experimental: true } } },
["-debug-prefixed-invalid"]: { __compat: { support: { chrome: { version_added: "0", prefix: "-invalid-" } }, status: { standard_track: false, deprecated: false, experimental: true } } },
["-debug-removed"]: { __compat: { support: { chrome: { version_added: "0", version_removed: "0" } }, status: { standard_track: false, deprecated: false, experimental: true } } },
})
for (let i = 1; i <= 10; i++) {
Object.assign(bcd.css.properties, {
[`-debug-pass-${i}`]: { __compat: { support: { chrome: { version_added: "0" } }, status: { standard_track: false, deprecated: false, experimental: true } } },
[`-debug-fail-${i}`]: { __compat: { support: { chrome: { version_added: false } }, status: { standard_track: false, deprecated: false, experimental: true } } },
})
}
}
protected static styling = `
<style>
.css-compatibility-table {
border-collapse: collapse;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
}
.css-compatibility-table th {
background-color: #d0d7de;
}
.css-compatibility-table th, .css-compatibility-table td {
border: 1px solid black;
padding: 1em;
white-space: nowrap;
vertical-align: top;
text-align: left;
}
.css-compatibility-table :is(td, th) :nth-child(1) {
display: block;
text-align: center;
font-weight: bold;
font-size: 1.15em;
border-bottom: 1px solid currentColor;
}
.css-compatibility-table [data-empty] {background-color: #000;}
.css-compatibility-table [data-unknown] {color: #848d97;}
.css-compatibility-table [data-prefix] {color: #8250df;}
.css-compatibility-table [data-perfect] {color: #1a7f37;}
.css-compatibility-table [data-good] {color: #3fb950;}
.css-compatibility-table [data-ok] {color: #d29922;}
.css-compatibility-table [data-bad] {color: #f85149;}
</style>`.split("\n").map((line) => line.trim()).join("").replaceAll(/([:\],]) /g, "$1").replaceAll(/ \{/g, "{") as string
}
export type browser = string
export type version = string
export type feature = string
export type value = string
type tag = string
type status = { nonstandard: boolean; deprecated: boolean; experimental: boolean }
export type location = { file: unknown; line: number; column: number }
export type level = "unknown" | "unsupported" | "partial" | "prefixed" | "supported"
type bcd_section = "selectors" | "properties" | "types" | "at-rules"
type bcd_status = { standard_track: boolean; deprecated: boolean; experimental: boolean }
type bcd_support = {
version_added: string | false
version_removed?: string
partial_implementation?: boolean
prefix?: string
notes?: Arrayable<string>
}
type _bcd_compatibility = {
__compat: {
description?: string
support: Record<browser, Arrayable<bcd_support>>
status: bcd_status
}
}
type bcd_compatibility = _bcd_compatibility & { [key: string]: _bcd_compatibility }
type ast_node = {
type: string
name: string
loc: ast_location
property: string
value: ast_value
prelude: ast_value
}
type ast_location = { source: string; start: { line: number; column: number; offset: number }; end: { line: number; column: number; offset: number } }
type ast_value = { type: string; loc: ast_location; name: string; value: string; unit: string }
type data = Array<{
feature: feature
browser: browser
version: version
location: location
value: Nullable<value>
level: level
status: status
}>
export type feature_map = Record<feature, Record<browser, Record<version, Array<{ location: location; value: Nullable<value> }>>>>
export type browser_map = Record<feature, Array<{ location: location; value: Nullable<value> }>>
export type report = {
features: {
list: feature[]
status: {
deprecated: feature_map
experimental: feature_map
nonstandard: feature_map
}
support: Record<level, feature_map>
}
browsers: Record<
browser,
Record<version, { support: Record<level, browser_map> }>
>
print: (options?: Arg<Report["print"], 1>) => ReturnType<Report["print"]>
}
type table_entry = {
browser: browser
version: string
count: {
flat: Record<level | "total", number>
percentage: Record<level, number>
}
features: Record<level, browser_map>
users: number
}
|