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Commit4ec1064

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Actual CLI stuff
1 parent6e9da3e commit4ec1064

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8 files changed

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-24
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8 files changed

+243
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lines changed

‎README.md‎

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#typescript-project-template
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Template repo for new TypeScript projects.
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This repo assumes the following:
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* Source code lives in the`src` directory.
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* The main export is located in`src/index.ts`.
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* Tests live in the`test` directory.
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* Each test is name`<name>.test.ts`.
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* The`npm_token`,`app_id`, and`app_private_key` secrets are present in the repo.
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* The code will be a CommonJS module.
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#github-run-script
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Run a script on multiple repositories, cloning them if needed.

‎package-lock.json‎

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‎package.json‎

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{
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"name":"<package-name>",
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"name":"github-run-script",
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"version":"1.0.0",
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"description":"<package-description>",
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"description":"Run a script on multiple repositories, cloning them if needed.",
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"main":"dist/index.js",
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"type":"commonjs",
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"types":"dist/index.d.ts",
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},
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"repository": {
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"type":"git",
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"url":"git+https://github.com/PythonCoderAS/<package-name>.git"
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"url":"git+https://github.com/PythonCoderAS/github-run-script.git"
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},
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"keywords": [],
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"author":"PythonCoderAS",
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"license":"MIT",
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"bugs": {
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"url":"https://github.com/PythonCoderAS/<package-name>/issues"
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"url":"https://github.com/PythonCoderAS/github-run-script/issues"
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},
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"homepage":"https://github.com/PythonCoderAS/<package-name>#readme",
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"homepage":"https://github.com/PythonCoderAS/github-run-script#readme",
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"dependencies": {
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"array-string-map":"^3.0.0",
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"node-filter-async":"^2.0.0",
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"sade":"^1.8.1"
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},
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"devDependencies": {
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"@types/chai":"^4.3.1",

‎src/cli.ts‎

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import*assadefrom"sade";
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importhandlerfrom"./handler";
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// eslint-disable-next-line @typescript-eslint/no-var-requires -- Needed in order to not copy over package.json and make new src directory inside of dist
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const{ version, description}=require("../package.json");
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constcli=sade("github-run-script <script>",true)
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.version(version)
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.describe(description)
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.option(
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"-o, --owner",
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"The owner for repositories without an explicit owner."
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)
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.option(
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"-s, --search-path",
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"A path to search for already-cloned repositories."
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)
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.action(handler);
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exportdefaultcli;

‎src/handler.ts‎

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import{mkdtemp,readdir,stat,rm}from"fs/promises";
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import{spawn}from"child_process";
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import{CliFlags,RepoOwner}from"./types";
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import{getRepoAndOwner,waitOnChildProcessToExit}from"./utils";
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importArrayStringMapfrom"array-string-map";
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importfilterAsyncfrom"node-filter-async";
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import{tmpdir}from"os";
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exportdefaultasyncfunctionhandler(script:string,flags:CliFlags){
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console.log(script,flags);
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const{owner:defaultOwner,_:repoNames}=flags;
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constrepos:RepoOwner[]=[];
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for(constrepoNameofrepoNames){
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try{
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const[owner,repo]=getRepoAndOwner(repoName,defaultOwner);
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repos.push([owner,repo]);
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// eslint-disable-next-line @typescript-eslint/no-explicit-any -- We need the `message` attribute.
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}catch(e:any){
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console.error(e.message);
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process.exit(1);
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}
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}
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consttempDir=awaitmkdtemp(`${tmpdir()}/github-run-script-`);
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try{
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constdirectoryMapping:ArrayStringMap<RepoOwner,string>=
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newArrayStringMap();
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constscanDirectories:Map<string,string[]>=newMap();
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if(flags.searchPath){
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// If it's one path, it won't be in an array. This converts it into an array.
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if(typeofflags.searchPath==="string"){
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flags.searchPath=[flags.searchPath];
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}
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// What this code block does is simple. It stores in `scanDirectories`
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// a mapping of source path name to an array of directories in that directory.
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awaitPromise.all(
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flags.searchPath.map(async(path)=>{
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scanDirectories.set(
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path,
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awaitfilterAsync(awaitreaddir(path),async(item)=>{
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return(awaitstat(`${path}/${item}`)).isDirectory();
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})
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);
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})
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);
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}
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awaitPromise.all(
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repos.map(async([owner,repo])=>{
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// First, we need to check if the repository exists in `scanDirectories`.
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// TODO: Handle cases where the same repo is present multiple times in
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// TODO: different directories, or if two repos with the same name but
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// TODO: different owners is provided. (Maybe we can check `.git`.)
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for(const[path,directories]ofscanDirectories){
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for(constdirectoryofdirectories){
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if(repo===directory){
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directoryMapping.set([owner,repo],path);
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break;
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}
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}
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// If we already found a match earlier, no need to re-iterate over the other
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// directories.
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if(directoryMapping.has([owner,repo])){
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break;
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}
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}
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// Deal wit the special case where we did not find a match. Time to clone.
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if(!directoryMapping.has([owner,repo])){
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constdestPath=`${tempDir}/${repo}`;
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console.log(`Cloning${owner}/${repo} to${destPath}`);
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constchildProc=awaitspawn(
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"git",
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["clone",`https://github.com/${owner}/${repo}.git`,destPath],
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{stdio:"inherit"}
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);
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awaitwaitOnChildProcessToExit(childProc);
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directoryMapping.set([owner,repo],destPath);
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}
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// Time to execute the script!
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constpath=directoryMapping.get([owner,repo]);
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constchildProc=awaitspawn(script,[],{
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cwd:path,
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env:{
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...process.env,
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REPO_OWNER:owner,
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REPO_NAME:repo,
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REPO:`${owner}/${repo}`,
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REPO_PATH:path,
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},
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stdio:"inherit",
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});
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awaitwaitOnChildProcessToExit(childProc);
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})
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);
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}finally{
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// We need to clean up the temporary directory.
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awaitrm(tempDir,{recursive:true,force:true});
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}
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}

‎src/index.ts‎

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#!/usr/bin/env node
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importclifrom"./cli";
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cli.parse(process.argv);

‎src/types.ts‎

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exportinterfaceCliFlags{
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owner?:string;
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searchPath?:string|string[];
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_:string[];
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}
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/**
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* A two-element tuple that contains [owner, repository].
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*/
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exporttypeRepoOwner=[string,string];

‎src/utils.ts‎

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import{RepoOwner}from"./types";
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import{ChildProcess}from"child_process";
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exportfunctiongetRepoAndOwner(
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input:string,
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defaultOwner?:string
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):RepoOwner{
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let[owner,repo]=input.split("/");
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if(!repo){
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// This means that there was no slash, so we need to do some reassignments.
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repo=owner;
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if(!defaultOwner){
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thrownewError(
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`${input}: No owner specified and no default owner was provided.`
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);
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}
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owner=defaultOwner;
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}
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return[owner,repo];
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}
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exportasyncfunctionwaitOnChildProcessToExit(process:ChildProcess){
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returnnewPromise((resolve,reject)=>{
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process.on("exit",resolve);
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process.on("error",reject);
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});
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}

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