feat(publish): support package publishing from a subdirectory

Follows package.json `distDir` while package publishing (and yalc publish)
...because uirouter/angular builds a publishable package in `./dist` using ng-packagr.

publish_yalc_package.js

@@ -92,9 +92,13 @@ function publishYalcPackage(installTargetDir, installSource, flags) {
         }
       }
 
+      // If ngPackage is found in package.json, the directory to be published is actually ./dist
+      const distDir = !!pkgJson.distDir || '.';
       if (!flags.noPublish) {
+        shelljs.pushd(distDir);
         // Publish to local yalc registry
         util._exec('npx yalc publish');
+        shelljs.popd();
       }
     } finally {
       shelljs.mv(BUILD_TEMP_DIR, installTargetDir);

release.js

@@ -111,7 +111,10 @@ if (!yargs.argv.dryrun) {
 
 // Publish to NPM and push to github
 if (!yargs.argv.dryrun) {
+  const distDir = packageJson.distDir || '.';
+  shelljs.pushd(distDir);
   _exec(`npm publish`);
+  shelljs.popd();
   _exec(`git tag ${version}`);
   _exec(`git push origin master`);
   _exec(`git push origin ${version}`);

test_downstream_projects.js

@@ -53,6 +53,7 @@ function localPublish(packageDir) {
   // Un-yalc any deps in the package.json (after building, but before yalc publishing)
   const packageString = fs.readFileSync('package.json');
   const package = JSON.parse(packageString);
+  const distDir =  !!package.distDir || '.';
   const { resolutions = {}, dependencies = {}, devDependencies = {} } = package;
 
   const yalcLockfile = fs.existsSync('yalc.lock') ? JSON.parse(fs.readFileSync('yalc.lock')) : {};
@@ -75,7 +76,9 @@ function localPublish(packageDir) {
     fs.writeFileSync('package.json', JSON.stringify(package, null, 2));
   }
 
+  shelljs.pushd(distDir);
   util._exec('npx yalc publish');
+  shelljs.popd();
 
   if (yalcPackages.length) {
     console.log(`           ===> Restoring yalc'd manifest ${packageDir}/package.json <===`)