Add CI/CD workflows and first test

.github/workflows/build_and_release.yml

@@ -0,0 +1,53 @@
+name: Build and Release
+
+on:
+  push:
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-13, macos-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Deno
+        uses: denoland/setup-deno@v2
+        with:
+          deno-version: v2.x
+      - name: Run Tests
+        run: deno test
+
+  build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-13, macos-latest]
+    runs-on: ${{ matrix.os }}
+    needs:
+      - test
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Deno
+        uses: denoland/setup-deno@v2
+        with:
+          deno-version: v2.x
+      - name: Build
+        run: deno task compile
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          path: builds/*
+
+  release:
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/')
+    needs:
+      - build
+    steps:
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: build/*
+          token: ${{ secrets.GITHUB_TOKEN }}

commands/global.test.ts

@@ -0,0 +1,54 @@
+import { describe, it, beforeAll } from "jsr:@std/testing/bdd";
+import { assertEquals, assertRejects } from "jsr:@std/assert";
+import { ensureDir } from "jsr:@std/fs";
+
+import global, { NotInstalled, NoGlobalVersion } from "./global.ts";
+
+describe("global", () => {
+  describe("when an argument is passed", () => {
+    describe("when DR version has been registered", () => {
+      beforeAll(async () => {
+        await ensureDir(`${Deno.env.get("HOME")}/.drenv/versions/1.0.0`);
+        await Deno.writeTextFile(`${Deno.env.get("HOME")}/.drenv/versions/1.0.0/CHANGELOG-CURR.txt`, "* 1.0.0");
+      })
+
+      it("writes to the ~/.drenv/.dragonruby-version file", async () => {
+        await global("1.0.0");
+
+        const result = await Deno.readTextFile(`${Deno.env.get("HOME")}/.drenv/.dragonruby-version`);
+
+        assertEquals(result, "1.0.0");
+      })
+    })
+  })
+
+  describe("when an argument is not passed", () => {
+    describe("when version has been set", () => {
+      beforeAll(async () => {
+        await Deno.writeTextFile(`${Deno.env.get("HOME")}/.drenv/.dragonruby-version`, "1.0.0");
+      })
+
+      it("returns the version from the ~/.drenv/.dragonruby-version file", async () => {
+        const result = await global();
+
+        assertEquals(result, "1.0.0");
+      })
+    })
+
+    describe("when version has not been set", () => {
+      beforeAll(async () => {
+        await Deno.remove(`${Deno.env.get("HOME")}/.drenv/.dragonruby-version`);
+      })
+
+      it("raises an error", async () => {
+        assertRejects(
+          async () => {
+            await global();
+          },
+          NoGlobalVersion,
+          "drenv: no global version configured"
+        )
+      })
+    })
+  })
+})

deno.json

@@ -1,7 +1,7 @@
 {
   "tasks": {
     "dev": "deno run --watch main.ts",
-    "compile": "deno compile -A --output=builds/drenv main.ts",
+    "compile": "deno compile -A --output=builds/ main.ts",
     "compile:windows-x86": "deno compile -A --output=builds/x86_64-pc-windows-msvc.drenv --target=x86_64-pc-windows-msvc main.ts",
     "compile:macos-x86": "deno compile -A --output=builds/x86_64-apple-darwin.drenv --target=x86_64-apple-darwin main.ts",
     "compile:macos-arm64": "deno compile -A --output=builds/aarch64-apple-darwin.drenv --target=aarch64-apple-darwin main.ts",