Extract getPagesBaseUrl to separate module

src/get-pages-base-url.js

@@ -0,0 +1,33 @@
+const core = require('@actions/core')
+const axios = require('axios')
+
+async function getPagesBaseUrl({ repositoryNwo, githubToken}) {
+  try {
+    const pagesEndpoint = `https://api.github.com/repos/${repositoryNwo}/pages`
+
+    core.info(`Get the Base URL to the page with endpoint ${pagesEndpoint}`)
+    const response = await axios.get(
+      pagesEndpoint,
+      {
+        headers: {
+          Accept: 'application/vnd.github.v3+json',
+          Authorization: `Bearer ${githubToken}`
+        }
+      }
+    )
+
+    pageObject = response.data
+    core.info(JSON.stringify(pageObject))
+
+    const siteUrl = new URL(pageObject.html_url)
+    core.setOutput('base_url', siteUrl.href)
+    core.setOutput('origin', siteUrl.origin)
+    core.setOutput('host', siteUrl.host)
+    core.setOutput('base_path', siteUrl.pathname)
+  } catch (error) {
+    core.error('Get on the Page failed', error)
+    throw error
+  }
+}
+
+module.exports = getPagesBaseUrl