ci: add basic integration test, pipeline step (#7)

* ci: add basic integration test, pipeline step

fix: pull_request trigger

fix: env declaration format

* ci: hoist env def to step instead of individual run

* ci: trigger on main push

.github/workflows/ci.yaml

@@ -0,0 +1,20 @@
+name: "v CI/CD"
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  integration-tests:
+    name: "Integration tests"
+    runs-on: ubuntu-latest
+    env:
+      V_ROOT: /tmp/v
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v4
+        with:
+          go-version: '1.21'
+      - run: . integration/install_specific_version

integration/install_specific_version

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# Scenario: User installs a specific version of python.
+
+echo "Scenario: User installs a specific version of Python"
+
+go build .
+
+TARGET_VERSION="3.10.0"
+
+V_ROOT=/tmp/v ./v init
+V_ROOT=/tmp/v ./v install $TARGET_VERSION --no-cache
+
+INSTALLED_VERSIONS=$(V_ROOT=/tmp/v ./v ls)
+
+if [ -z "$(echo $INSTALLED_VERSIONS | grep $TARGET_VERSION)" ]; then
+    echo "FAIL: Could not find target version."
+    exit 1
+else
+    echo "SUCCESS"
+fi