feat: Add Github Action for notation setup

README.md

@@ -1 +1 @@
-# Notation Action
+# Notation Action

setup/action.yml

@@ -0,0 +1,16 @@
+name: setup-gh
+description: Setup Notation CLI on GitHub Action runners
+branding:
+  icon: check-circle
+  color: blue
+inputs:
+  version:
+    description: Version of Notation CLI to install
+    required: false
+    default: 1.0.0-rc.7
+  url:
+    description: URL of Notation CLI to install
+    required: false
+runs:
+  using: node16
+  main: dist/index.js

setup/dist/licenses.txt

@@ -0,0 +1,9 @@
+@vercel/ncc
+MIT
+Copyright 2018 ZEIT, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

setup/index.js

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+const path = require('path');
+const core = require('@actions/core');
+const tc = require('@actions/tool-cache');
+const { getDownloadObject } = require('./lib/utils');
+const fs = require('fs');
+const mv = require('mv');
+const { version } = require('os');
+const execSync = require('child_process').execSync;
+
+async function setup() {
+  try {
+    // Get version of tool to be installed
+    const version = core.getInput('version');
+
+    // Download the specific version of the tool, e.g. as a tarball/zipball
+    const download = getDownloadObject(version);
+    console.log(download)
+    const pathToTarball = await tc.downloadTool(download.url);
+
+    // Extract the tarball/zipball onto host runner
+    const extract = download.url.endsWith('.zip') ? tc.extractZip : tc.extractTar;
+    const pathToCLI = await extract(pathToTarball);
+    fs.mkdirSync(pathToCLI + "/" + download.binPath, { recursive: true, })
+
+    const currentPath = path.join(pathToCLI, "notation")
+    const destinationPath = path.join(pathToCLI, "/", download.binPath, "/", "notation")
+    mv(currentPath, destinationPath, function (err) {
+      if (err) {
+        throw err
+      } else {
+        console.log("Successfully moved the Notation binary to bin.");
+      }
+    });
+    // Expose the tool by adding it to the PATH
+    core.addPath(path.join(pathToCLI, download.binPath));
+
+
+  } catch (e) {
+    core.setFailed(e);
+  }
+}
+
+module.exports = setup
+
+if (require.main === module) {
+  setup();
+}

setup/lib/utils.js

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+const { setFailed } = require('@actions/core');
+const os = require('os');
+const path = require('path');
+const execSync = require('child_process').execSync;
+const semver = require('semver');
+const core = require('@actions/core');
+const arch = "amd64";
+
+// os in [darwin, linux, win32...] (https://nodejs.org/api/os.html#os_os_platform)
+// return value in [darwin, linux, windows]
+function mapOS(os) {
+    const mappings = {
+        darwin: 'macOS',
+        win32: 'windows'
+    };
+    return mappings[os] || os;
+}
+
+function getDownloadObject(version) {
+    const platform = os.platform();
+    const filename = `notation_${version}_${mapOS(platform)}_${arch}`;
+    const extension = platform === 'win32' ? 'zip' : 'tar.gz';
+    const binPath = platform === 'win32' ? 'bin' : path.join(filename, 'bin');
+    const url = `https://github.com/notaryproject/notation/releases/download/v${version}/${filename}.${extension}`;
+    return {
+        url,
+        binPath,
+        filename
+    };
+}
+
+module.exports = { getDownloadObject }