123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183
import { walkSync } from "https://deno.land/std@v0.34.0/fs/mod.ts";import * as path from "https://deno.land/std@v0.34.0/path/mod.ts";
class DrakeError extends Error {  constructor(message?: string) {    super(message);    this.name = "DrakeError";  }}
/** Throw `DrakeError` with error message to terminate execution. */export function abort(message: string): void {  throw new DrakeError(message);}
/** * Quote string array values with double-quotes then join them with a separator. * Double-quote characters are escaped with a backspace. * The separator defaults to a space character. */export function quote(values: string[], sep: string = " "): string {  values = values.map(value => `"${value.replace(/"/g, '\\"')}"`);  return values.join(sep);}
/** Read the entire contents of a file synchronously to a UTF-8 string. */export function readFile(filename: string): string {  return new TextDecoder("utf-8").decode(Deno.readFileSync(filename));}
/* Write text to a file synchronously. If the file exists it will be overwritten. */export function writeFile(filename: string, text: string): void {  Deno.writeFileSync(filename, new TextEncoder().encode(text));}
/** Find and replace in text file synchronously. */export function updateFile(  filename: string,  find: RegExp,  replace: string): void {  writeFile(filename, readFile(filename).replace(find, replace));}
/** * Return true if `name` is a normal task name. Normal task names contain one or more alphanumeric, * underscore and hyphen characters and cannot start with a hyphen. * *     isNormalTask("hello-world")    // true *     isNormalTask("io.ts")          // false *     isNormalTask("./hello-world")  // false * */export function isNormalTask(name: string): boolean {  return /^\w[\w-]*$/.test(name);}
/** * Return true if `name` is a file task name. File task names are valid file paths. *  *     isFileTask("io.ts")          // true *     isFileTask("hello-world")    // false *     isFileTask("./hello-world")  // true *  */export function isFileTask(name: string): boolean {  return !isNormalTask(name);}
/** * The path name is normalized and the relative path names are guaranteed to start with a `.` * character (to distinguish them from non-file task names). *  *     normalizePath("hello-world")   // "./hello-world" *     normalizePath("lib/io.ts")     // "./lib/io.ts" */export function normalizePath(name: string): string {  name = path.normalize(name);  if (!path.isAbsolute(name)) {    if (!name.startsWith(".")) {      name = "." + path.sep + name;    }  }  return name;}
/** Normalise Drake task name. Throw an error if the name is blank or it contains wildcard * characters. */export function normalizeTaskName(name: string): string {  name = name.trim();  if (name === "") {    abort("blank task name");  }  if (path.isGlob(name)) {    abort(`wildcard task name not allowed: ${name}`);  }  if (isFileTask(name)) {    name = normalizePath(name);  }  return name;}
/** * Return a list prerequisite task names. * Globs are expanded and path names are normalized. */export function normalizePrereqs(prereqs: string[]): string[] {  const result: string[] = [];  for (let prereq of prereqs) {    prereq = prereq.trim();    if (prereq === "") {      abort("blank prerequisite name");    }    if (!isFileTask(prereq)) {      result.push(prereq);    } else if (path.isGlob(prereq)) {      result.push(...glob(prereq));    } else {      result.push(normalizePath(prereq));    }  }  return result;}
/** * Return array of normalized file names matching the glob patterns. * e.g. `glob("tmp/*.ts", "lib/*.ts", "mod.ts");` */export function glob(...patterns: string[]): string[] {  const regexps = patterns.map(pat => path.globToRegExp(path.normalize(pat)));  const iter = walkSync(".", { match: regexps, includeDirs: false });  return Array.from(iter, info => normalizePath(info.filename));}
/** Start shell command and return status promise. */function launch(command: string): Promise<Deno.ProcessStatus> {  let args: string[];  const shellVar = Deno.build.os === "win" ? "COMSPEC" : "SHELL";  const shellExe = Deno.env(shellVar) as string;  if (!shellExe) {    abort(`cannot locate shell: missing ${shellVar} environment variable`);  }  if (Deno.build.os === "win") {    args = [shellExe, "/C", command];  } else {    args = [shellExe, "-c", command];  }  // create subprocess  const p = Deno.run({    args: args,    stdout: "inherit"  });  return p.status();}
/** * Execute commands in the command shell. * If `commands` is a string execute it. * If `commands` is an array of commands execute them in parallel. * If any command fails throw an error. */export async function sh(commands: string | string[]) {  if (typeof commands === "string") {    commands = [commands];  }  const promises = [];  for (const cmd of commands) {    promises.push(launch(cmd));  }  const results = await Promise.all(promises);  for (const i in results) {    const cmd = commands[i];    const code = results[i].code;    if (code === undefined) {      abort(`sh: ${cmd}: undefined exit code`);    }    if (code !== 0) {      abort(`sh: ${cmd}: error code: ${code}`);    }  }}