Merge pull request #5 from TheoBrigitte/show

add missing show.js

Author: TheoBrigitte

src/show.js

@@ -0,0 +1,32 @@
+const { parser } = require("keep-a-changelog");
+const fs = require("fs");
+
+// Show and release and its changes
+function show(version, options) {
+  // Read changelog file
+  const changelog = parser(fs.readFileSync(options.file, options.encoding));
+  changelog.format = options.format;
+  changelog.sortReleases();
+
+  // Find release
+  let release;
+  switch (version) {
+    case "latest":
+      release = changelog.releases.find((release) =>
+        release.date && release.version
+      );
+      break;
+    case "unreleased":
+      version = undefined;
+    default:
+      release = changelog.findRelease(version);
+  }
+  if (!release) {
+    throw new Error(`release ${version} not found`);
+  }
+
+  // Print changes
+  console.log(release.toString(changelog));
+}
+
+module.exports = { show };