build(ci): Use cache in GitHub Actions

Author: niheaven

.github/workflows/ci.yml

@@ -1,4 +1,4 @@
-name: Tests
+name: Scoop Core CI Tests
 
 on:
   pull_request:
@@ -14,11 +14,14 @@ jobs:
         uses: actions/checkout@v2
         with:
           fetch-depth: 2
-      - name: Init and Test
+      - name: Init Test Suite
+        uses: potatoqualitee/psmodulecache@v4
+        with:
+          modules-to-cache: PSScriptAnalyzer, BuildHelpers, Pester:4.10.1
+          shell: powershell
+      - name: Test Scoop Core
         shell: powershell
-        run: |
-          .\test\bin\init.ps1
-          .\test\bin\test.ps1
+        run: ./test/bin/test.ps1
   test_pwsh:
     name: PowerShell
     runs-on: windows-latest
@@ -27,8 +30,11 @@ jobs:
         uses: actions/checkout@v2
         with:
           fetch-depth: 2
-      - name: Init and Test
+      - name: Init Test Suite
+        uses: potatoqualitee/psmodulecache@v4
+        with:
+          modules-to-cache: PSScriptAnalyzer, BuildHelpers, Pester:4.10.1
+          shell: pwsh
+      - name: Test Scoop Core
         shell: pwsh
-        run: |
-          .\test\bin\init.ps1
-          .\test\bin\test.ps1
+        run: ./test/bin/test.ps1

test/bin/init.ps1

@@ -1,6 +1,22 @@
-#Requires -Version 5.0
+#Requires -Version 5.1
 Write-Host "PowerShell: $($PSVersionTable.PSVersion)"
 Write-Host (7z.exe | Select-String -Pattern '7-Zip').ToString()
-Write-Host 'Install testsuite dependencies ...'
-Install-Module -Repository PSGallery -Scope CurrentUser -Force -Name Pester -RequiredVersion 4.10.1 -SkipPublisherCheck
-Install-Module -Repository PSGallery -Scope CurrentUser -Force -Name PSScriptAnalyzer, BuildHelpers
+Write-Host 'Check and install testsuite dependencies ...'
+if (Get-InstalledModule -Name Pester -MinimumVersion 4.0 -MaximumVersion 4.99 -ErrorAction SilentlyContinue) {
+    Write-Host 'Pester 4 is already installed.'
+} else {
+    Write-Host 'Installing Pester 4 ...'
+    Install-Module -Repository PSGallery -Scope CurrentUser -Force -Name Pester -MinimumVersion 4.0 -MaximumVersion 4.99 -SkipPublisherCheck
+}
+if (Get-InstalledModule -Name PSScriptAnalyzer -MinimumVersion 1.17 -ErrorAction SilentlyContinue) {
+    Write-Host 'PSScriptAnalyzer is already installed.'
+} else {
+    Write-Host 'Installing PSScriptAnalyzer ...'
+    Install-Module -Repository PSGallery -Scope CurrentUser -Force -Name PSScriptAnalyzer -SkipPublisherCheck
+}
+if (Get-InstalledModule -Name BuildHelpers -MinimumVersion 2.0 -ErrorAction SilentlyContinue) {
+    Write-Host 'BuildHelpers is already installed.'
+} else {
+    Write-Host 'Installing BuildHelpers ...'
+    Install-Module -Repository PSGallery -Scope CurrentUser -Force -Name BuildHelpers -SkipPublisherCheck
+}

test/bin/test.ps1

@@ -1,6 +1,6 @@
-#Requires -Version 5.0
+#Requires -Version 5.1
 #Requires -Modules @{ ModuleName = 'BuildHelpers'; ModuleVersion = '2.0.1' }
-#Requires -Modules @{ ModuleName = 'Pester'; RequiredVersion = '4.10.1' }
+#Requires -Modules @{ ModuleName = 'Pester'; MaximumVersion = '4.99' }
 #Requires -Modules @{ ModuleName = 'PSScriptAnalyzer'; ModuleVersion = '1.17.1' }
 param(
     [String] $TestPath = $(Resolve-Path "$PSScriptRoot\..\")