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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
// @flow
/**
* Utils for working with Source URLs
* @module utils/source
*/
import { isOriginalId, isGeneratedId } from "devtools-source-map";
import { getUnicodeUrl } from "devtools-modules";
import { endTruncateStr } from "./utils";
import { truncateMiddleText } from "../utils/text";
import { parse as parseURL } from "../utils/url";
import { renderWasmText } from "./wasm";
import { toEditorPosition } from "./editor";
export { isMinified } from "./isMinified";
import { getURL, getFileExtension } from "./sources-tree";
import { prefs, features } from "./prefs";
import type {
SourceId,
Source,
SourceActor,
SourceContent,
SourceLocation
} from "../types";
import { isFulfilled, type AsyncValue } from "./async-value";
import type { Symbols } from "../reducers/types";
type transformUrlCallback = string => string;
export const sourceTypes = {
coffee: "coffeescript",
js: "javascript",
jsx: "react",
ts: "typescript",
vue: "vue"
};
/**
* Trims the query part or reference identifier of a url string, if necessary.
*
* @memberof utils/source
* @static
*/
function trimUrlQuery(url: string): string {
const length = url.length;
const q1 = url.indexOf("?");
const q2 = url.indexOf("&");
const q3 = url.indexOf("#");
const q = Math.min(
q1 != -1 ? q1 : length,
q2 != -1 ? q2 : length,
q3 != -1 ? q3 : length
);
return url.slice(0, q);
}
export function shouldBlackbox(source: ?Source) {
if (!source) {
return false;
}
if (!source.url) {
return false;
}
if (isOriginalId(source.id) && !features.originalBlackbox) {
return false;
}
return true;
}
export function shouldPrettyPrint(
source: Source,
content: SourceContent
): boolean {
if (
!source ||
isPretty(source) ||
!isJavaScript(source, content) ||
isOriginal(source) ||
(prefs.clientSourceMapsEnabled && source.sourceMapURL)
) {
return false;
}
return true;
}
/**
* Returns true if the specified url and/or content type are specific to
* javascript files.
*
* @return boolean
* True if the source is likely javascript.
*
* @memberof utils/source
* @static
*/
export function isJavaScript(source: Source, content: SourceContent): boolean {
const url = source.url;
const contentType = content.type === "wasm" ? null : content.contentType;
return (
(url && /\.(jsm|js)?$/.test(trimUrlQuery(url))) ||
!!(contentType && contentType.includes("javascript"))
);
}
/**
* @memberof utils/source
* @static
*/
export function isPretty(source: Source): boolean {
const url = source.url;
return isPrettyURL(url);
}
export function isPrettyURL(url: string): boolean {
return url ? /formatted$/.test(url) : false;
}
export function isThirdParty(source: Source) {
const url = source.url;
if (!source || !url) {
return false;
}
return !!url.match(/(node_modules|bower_components)/);
}
/**
* @memberof utils/source
* @static
*/
export function getPrettySourceURL(url: ?string): string {
if (!url) {
url = "";
}
return `${url}:formatted`;
}
/**
* @memberof utils/source
* @static
*/
export function getRawSourceURL(url: string): string {
return url ? url.replace(/:formatted$/, "") : url;
}
function resolveFileURL(
url: string,
transformUrl: transformUrlCallback = initialUrl => initialUrl,
truncate: boolean = true
) {
url = getRawSourceURL(url || "");
const name = transformUrl(url);
if (!truncate) {
return name;
}
return endTruncateStr(name, 50);
}
export function getFormattedSourceId(id: string) {
const sourceId = id.split("/")[1];
return `SOURCE${sourceId}`;
}
/**
* Gets a readable filename from a source URL for display purposes.
* If the source does not have a URL, the source ID will be returned instead.
*
* @memberof utils/source
* @static
*/
export function getFilename(source: Source) {
const { url, id } = source;
if (!getRawSourceURL(url)) {
return getFormattedSourceId(id);
}
const { filename } = getURL(source);
return getRawSourceURL(filename);
}
/**
* Provides a middle-trunated filename
*
* @memberof utils/source
* @static
*/
export function getTruncatedFileName(
source: Source,
querystring: string = "",
length: number = 30
) {
return truncateMiddleText(`${getFilename(source)}${querystring}`, length);
}
/* Gets path for files with same filename for editor tabs, breakpoints, etc.
* Pass the source, and list of other sources
*
* @memberof utils/source
* @static
*/
export function getDisplayPath(mySource: Source, sources: Source[]) {
const filename = getFilename(mySource);
// Find sources that have the same filename, but different paths
// as the original source
const similarSources = sources.filter(
source =>
getRawSourceURL(mySource.url) != getRawSourceURL(source.url) &&
filename == getFilename(source)
);
if (similarSources.length == 0) {
return undefined;
}
// get an array of source path directories e.g. ['a/b/c.html'] => [['b', 'a']]
const paths = [mySource, ...similarSources].map(source =>
getURL(source)
.path.split("/")
.reverse()
.slice(1)
);
// create an array of similar path directories and one dis-similar directory
// for example [`a/b/c.html`, `a1/b/c.html`] => ['b', 'a']
// where 'b' is the similar directory and 'a' is the dis-similar directory.
let similar = true;
const displayPath = [];
for (let i = 0; similar && i < paths[0].length; i++) {
const [dir, ...dirs] = paths.map(path => path[i]);
displayPath.push(dir);
similar = dirs.includes(dir);
}
return displayPath.reverse().join("/");
}
/**
* Gets a readable source URL for display purposes.
* If the source does not have a URL, the source ID will be returned instead.
*
* @memberof utils/source
* @static
*/
export function getFileURL(source: Source, truncate: boolean = true) {
const { url, id } = source;
if (!url) {
return getFormattedSourceId(id);
}
return resolveFileURL(url, getUnicodeUrl, truncate);
}
const contentTypeModeMap = {
"text/javascript": { name: "javascript" },
"text/typescript": { name: "javascript", typescript: true },
"text/coffeescript": { name: "coffeescript" },
"text/typescript-jsx": {
name: "jsx",
base: { name: "javascript", typescript: true }
},
"text/jsx": { name: "jsx" },
"text/x-elm": { name: "elm" },
"text/x-clojure": { name: "clojure" },
"text/x-clojurescript": { name: "clojure" },
"text/wasm": { name: "text" },
"text/html": { name: "htmlmixed" }
};
export function getSourcePath(url: string) {
if (!url) {
return "";
}
const { path, href } = parseURL(url);
// for URLs like "about:home" the path is null so we pass the full href
return path || href;
}
/**
* Returns amount of lines in the source. If source is a WebAssembly binary,
* the function returns amount of bytes.
*/
export function getSourceLineCount(content: SourceContent): number {
if (content.type === "wasm") {
const { binary } = content.value;
return binary.length;
}
return content.value.split("\n").length;
}
/**
*
* Checks if a source is minified based on some heuristics
* @param key
* @param text
* @return boolean
* @memberof utils/source
* @static
*/
/**
*
* Returns Code Mirror mode for source content type
* @param contentType
* @return String
* @memberof utils/source
* @static
*/
// eslint-disable-next-line complexity
export function getMode(
source: Source,
content: SourceContent,
symbols?: Symbols
): { name: string, base?: Object } {
const { url } = source;
if (content.type !== "text") {
return { name: "text" };
}
const { contentType, value: text } = content;
if ((url && url.match(/\.jsx$/i)) || (symbols && symbols.hasJsx)) {
if (symbols && symbols.hasTypes) {
return { name: "text/typescript-jsx" };
}
return { name: "jsx" };
}
if (symbols && symbols.hasTypes) {
if (symbols.hasJsx) {
return { name: "text/typescript-jsx" };
}
return { name: "text/typescript" };
}
const languageMimeMap = [
{ ext: ".c", mode: "text/x-csrc" },
{ ext: ".kt", mode: "text/x-kotlin" },
{ ext: ".cpp", mode: "text/x-c++src" },
{ ext: ".m", mode: "text/x-objectivec" },
{ ext: ".rs", mode: "text/x-rustsrc" },
{ ext: ".hx", mode: "text/x-haxe" }
];
// check for C and other non JS languages
if (url) {
const result = languageMimeMap.find(({ ext }) => url.endsWith(ext));
if (result !== undefined) {
return { name: result.mode };
}
}
// if the url ends with .marko we set the name to Javascript so
// syntax highlighting works for marko too
if (url && url.match(/\.marko$/i)) {
return { name: "javascript" };
}
// Use HTML mode for files in which the first non whitespace
// character is `<` regardless of extension.
const isHTMLLike = text.match(/^\s*</);
if (!contentType) {
if (isHTMLLike) {
return { name: "htmlmixed" };
}
return { name: "text" };
}
// // @flow or /* @flow */
if (text.match(/^\s*(\/\/ @flow|\/\* @flow \*\/)/)) {
return contentTypeModeMap["text/typescript"];
}
if (/script|elm|jsx|clojure|wasm|html/.test(contentType)) {
if (contentType in contentTypeModeMap) {
return contentTypeModeMap[contentType];
}
return contentTypeModeMap["text/javascript"];
}
if (isHTMLLike) {
return { name: "htmlmixed" };
}
return { name: "text" };
}
export function isInlineScript(source: SourceActor): boolean {
return source.introductionType === "scriptElement";
}
export function getTextAtPosition(
sourceId: SourceId,
asyncContent: AsyncValue<SourceContent> | null,
location: SourceLocation
) {
if (!asyncContent || !isFulfilled(asyncContent)) {
return "";
}
const content = asyncContent.value;
const line = location.line;
const column = location.column || 0;
if (content.type === "wasm") {
const { line: editorLine } = toEditorPosition(location);
const lines = renderWasmText(sourceId, content);
return lines[editorLine];
}
const lineText = content.value.split("\n")[line - 1];
if (!lineText) {
return "";
}
return lineText.slice(column, column + 100).trim();
}
export function getSourceClassnames(source: Object, symbols?: Symbols) {
// Conditionals should be ordered by priority of icon!
const defaultClassName = "file";
if (!source || !source.url) {
return defaultClassName;
}
if (isPretty(source)) {
return "prettyPrint";
}
if (source.isBlackBoxed) {
return "blackBox";
}
if (symbols && !symbols.loading && symbols.framework) {
return symbols.framework.toLowerCase();
}
return sourceTypes[getFileExtension(source)] || defaultClassName;
}
export function getRelativeUrl(source: Source, root: string) {
const { group, path } = getURL(source);
if (!root) {
return path;
}
// + 1 removes the leading "/"
const url = group + path;
return url.slice(url.indexOf(root) + root.length + 1);
}
export function underRoot(source: Source, root: string) {
return source.url && source.url.includes(root);
}
export function isOriginal(source: Source) {
// Pretty-printed sources are given original IDs, so no need
// for any additional check
return isOriginalId(source.id);
}
export function isGenerated(source: Source) {
return isGeneratedId(source.id);
}
export function getSourceQueryString(source: ?Source) {
if (!source) {
return;
}
return parseURL(getRawSourceURL(source.url)).search;
}
export function isUrlExtension(url: string) {
return /\/?(chrome|moz)-extension:\//.test(url);
}
export function getPlainUrl(url: string): string {
const queryStart = url.indexOf("?");
return queryStart !== -1 ? url.slice(0, queryStart) : url;
}