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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
import { platform, lstatSync, readDirSync } from "deno";
import { join } from "../js/deps/https/deno.land/x/std/fs/path/mod.ts";
export interface FindOptions {
skip?: string[];
depth?: number;
}
/**
* Finds files of the give extensions under the given paths recursively.
* @param dirs directories
* @param exts extensions
* @param skip patterns to ignore
* @param depth depth to find
*/
export function findFiles(
dirs: string[],
exts: string[],
{ skip = [], depth = 20 }: FindOptions = {}
) {
return findFilesWalk(dirs, depth).filter(
path =>
exts.some(ext => path.endsWith(ext)) &&
skip.every(pattern => !path.includes(pattern))
);
}
function findFilesWalk(paths: string[], depth: number) {
if (depth < 0) {
return [];
}
const foundPaths = paths.map(path =>
lstatSync(path).isDirectory()
? findFilesWalk(readDirSync(path).map(f => f.path), depth - 1)
: path
);
return [].concat(...foundPaths);
}
export const executableSuffix = platform.os === "win" ? ".exe" : "";
/** Returns true if the path exists. */
export function existsSync(path: string): boolean {
try {
lstatSync(path);
} catch (e) {
return false;
}
return true;
}
/**
* Looks up the available deno path with the priority
* of release -> debug -> global
*/
export function lookupDenoPath(): string {
const denoExe = "deno" + executableSuffix;
const releaseExe = join("target", "release", denoExe);
const debugExe = join("target", "debug", denoExe);
if (existsSync(releaseExe)) {
return releaseExe;
} else if (existsSync(debugExe)) {
return debugExe;
}
return denoExe;
}
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