feat(inputs): add semantic_version to specify version range(#3)

semantic_version: Specify specifying version range for semantic-release. If no version range is
specified, semantic-release@^15 will be used by default.

README.md

@@ -18,6 +18,7 @@ GitHub Action for [Semantic Release](https://github.com/semantic-release/semanti
 #### Step3: Add a [Workflow File](https://help.github.com/en/articles/workflow-syntax-for-github-actions) to your repository to create custom automated processes.
 * inputs:
   * `branch`: [Optional] The branch on which releases should happen. It will override the branch attribute in your configuration file. If the attribute is not configured on both sides, the default is master.
+  * `semantic_version`: [Optional] Specify specifying version range for semantic-release. If no version range is specified, semantic-release@^15 will be used by default.
   * `extra_plugins`: [Optional] Extra plugins for pre-install. You can also specify specifying version range for the extra plugins if you prefer.
   * `dry_run`: [Optional] Whether to run semantic release in "dry-run" mode. It will override the dryRun attribute in your configuration file.
 * outputs:
@@ -45,6 +46,7 @@ steps:
     id: semantic   # Need an `id` for output variables
     with:
       branch: master
+      semantic_version: 15.13.28
       # You can specify specifying version range for the extra plugins if you prefer.
       extra_plugins: |
         @semantic-release/git

action.yml

@@ -7,6 +7,8 @@ branding:
 inputs:
   branch:
     description: 'The branch on which releases should happen. It will override the branch attribute in your configuration file. If the attribute is not configured on both sides, the default is master.'
+  semantic_version:
+    description: 'Specify specifying version range for semantic-release. If no version range is specified, semantic-release@^15 will be used by default.'
   extra_plugins:
     description: 'Extra plugins for pre-install. You can also specify specifying version range for the extra plugins if you prefer.'
   dry_run:

src/index.js

@@ -1,7 +1,7 @@
 const core = require('@actions/core');
-const semanticRelease = require('semantic-release');
 const {handleBranchOption, handleDryRunOption} = require('./handleOptions');
 const setUpJob = require('./setUpJob.task');
+const installSpecifyingVersionSemantic = require('./installSpecifyingVersionSemantic.task');
 const preInstallPlugins = require('./preInstallPlugins.task');
 const cleanupNpmrc = require('./cleanupNpmrc.task');
 const windUpJob = require('./windUpJob.task');
@@ -12,8 +12,10 @@ const windUpJob = require('./windUpJob.task');
  */
 const release = async () => {
   await setUpJob();
+  await installSpecifyingVersionSemantic();
   await preInstallPlugins();
 
+  const semanticRelease = require('semantic-release');
   const result = await semanticRelease({
     ...(handleBranchOption()),
     ...(handleDryRunOption()),

src/inputs.json

@@ -1,5 +1,6 @@
 {
   "branch": "branch",
+  "semantic_version": "semantic_version",
   "extra_plugins": "extra_plugins",
   "dry_run": "dry_run"
 }

src/installSpecifyingVersionSemantic.task.js

@@ -0,0 +1,25 @@
+const path = require('path');
+const core = require('@actions/core');
+const exec = require('./_exec');
+const inputs = require('./inputs.json');
+
+/**
+ * Install Specifying Version semantic-release
+ * @returns {Promise<void>}
+ */
+module.exports = async () => {
+  const semantic_version = core.getInput(inputs.semantic_version);
+
+  if (!semantic_version) {
+    return Promise.resolve();
+  }
+
+  const {stdout, stderr} = await exec(`npm install semantic-release@${semantic_version}`, {
+    cwd: path.resolve(__dirname)
+  });
+  core.debug(stdout);
+
+  if (stderr) {
+    return Promise.reject(stderr);
+  }
+};