1 files changed, 39 insertions, 0 deletions
diff --git a/ofborg/ofborg-viewer/webpack/revision.js b/ofborg/ofborg-viewer/webpack/revision.js
new file mode 100644
index 0000000000..e5e1256eb9
--- /dev/null
+++ b/ofborg/ofborg-viewer/webpack/revision.js
@@ -0,0 +1,39 @@
+/* globals require, module */
+const path = require("path");
+const fs = require("fs");
+const exec = require("child_process").execSync;
+
+const {NODE_ENV = "development"} = process.env;
+
+// Identifies the git revision.
+// Makes it available in the environement of the app.
+
+const get_revision = () => {
+	// Git revision from deployment.
+	const file = path.resolve("./.git-revision");
+	if (fs.existsSync(file)) {
+		// It is assumed that the build process *can* dirty the repo,
+		// but it manages to do it in a sane way.
+		return fs.readFileSync(file, {encoding: "utf-8"}).trim();
+	}
+
+	// Assumes no need to show revision, *should* be clean.
+	return "";
+};
+
+const get_version = () => {
+	const file = path.resolve("./package.json");
+	const data = fs.readFileSync(file, {encoding: "utf-8"}).trim();
+	const {version} = JSON.parse(data);
+
+	if (NODE_ENV === "development") {
+		return version + "-dev";
+	}
+
+	return version;
+};
+
+module.exports = {
+	get_revision,
+	get_version,
+};