Initial commit

src/installer.js

@@ -0,0 +1,36 @@
+const {exec} = require('@actions/exec')
+const path = require('path')
+const semver = require('semver')
+
+module.exports = {installElixir, installOTP}
+
+/**
+ * Install Elixir.
+ *
+ * @param {string} version
+ * @param {string} arch
+ */
+async function installElixir(version) {
+  let arch = 'all'
+  if (semver.gt('1.9.0', version)) arch = 'amd64'
+
+  if (process.platform === 'linux') {
+    await exec(path.join(__dirname, 'install-elixir-ubuntu'), [version, arch])
+  }
+}
+
+/**
+ * Install OTP.
+ *
+ * @param {string} version
+ */
+async function installOTP(version) {
+  if (process.platform === 'linux') {
+    await exec(path.join(__dirname, 'install-otp-ubuntu'), [version])
+    return
+  }
+
+  throw new Error(
+    '@actions/setup-elixir only supports Ubuntu Linux at this time'
+  )
+}