feat: add GitHub Actions CI/CD workflow with tests and automatic releases

Author: Pablo Ramos

.github/workflows/ci.yml

@@ -0,0 +1,46 @@
+name: CI/CD
+
+on:
+    push:
+        branches: [main]
+        tags: ["v*"]
+    pull_request:
+        branches: [main]
+
+jobs:
+    test:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v4
+            - name: Install Zsh
+              run: sudo apt-get update && sudo apt-get install -y zsh
+            - name: Install Oh My Zsh
+              run: |
+                  sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended
+            - name: Setup plugin
+              run: |
+                  mkdir -p ~/.oh-my-zsh/custom/plugins/venvswitch
+                  cp venvswitch.plugin.zsh ~/.oh-my-zsh/custom/plugins/venvswitch/
+                  echo 'plugins=(venvswitch)' >> ~/.zshrc
+            - name: Check syntax
+              run: zsh -n venvswitch.plugin.zsh
+            - name: Test basic functionality
+              run: |
+                  zsh -c 'source ~/.zshrc && venvswitch_config'
+            - name: Install shellcheck
+              run: sudo apt-get install -y shellcheck
+            - name: Lint with shellcheck
+              run: shellcheck venvswitch.plugin.zsh
+
+    release:
+        if: startsWith(github.ref, 'refs/tags/v')
+        needs: test
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v4
+            - name: Create Release
+              uses: softprops/action-gh-release@v1
+              with:
+                  generate_release_notes: true
+              env:
+                  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}