Add blackhole audiodevice for macOS Big sur, add sox and Switchaudio-…

…osx versions to the docs (#3542)

images/macos/helpers/SoftwareReport.Helpers.psm1

@@ -49,3 +49,14 @@ function Get-PathWithLink {
     $link = Get-LinkTarget($inputPath)
     return "${inputPath}${link}"
 }
+
+function Get-BrewPackageVersion {
+    param (
+        [string] $CommandName
+    )
+
+    (Get-LinkTarget (Get-Command $CommandName).Source | Out-String) -match "(?<version>(\d+.){2}\d+)" | Out-Null 
+    $packageVersion = $Matches.Version
+
+    return $packageVersion
+}

images/macos/provision/core/audiodevice.sh

@@ -1,17 +1,28 @@
 #!/bin/bash -e -o pipefail
 source ~/utils/utils.sh
 
-echo "install soundflower"
-brew install --cask soundflower
-
 echo "install switchaudio-osx"
 brew_smart_install "switchaudio-osx"
 
 echo "install sox"
 brew_smart_install "sox"
 
-echo "set Soundflower (2ch) as input/output device"
-SwitchAudioSource -s "Soundflower (2ch)" -t input
-SwitchAudioSource -s "Soundflower (2ch)" -t output
+# Big Sur doesn't support soundflower installation without user interaction https://github.com/mattingalls/Soundflower/releases/tag/2.0b2
+# Install blackhole-2ch for Big Sur instead
+if is_Less_BigSur; then
+    echo "install soundflower"
+    brew install --cask soundflower
+
+    echo "set Soundflower (2ch) as input/output device"
+    SwitchAudioSource -s "Soundflower (2ch)" -t input
+    SwitchAudioSource -s "Soundflower (2ch)" -t output
+else
+    echo "install blackhole-2ch"
+    brew_smart_install "blackhole-2ch"
+
+    echo "set BlackHole 2ch as input/output device"
+    SwitchAudioSource -s "BlackHole 2ch" -t input
+    SwitchAudioSource -s "BlackHole 2ch" -t output
+fi
 
 invoke_tests "System" "Audio Device"

images/macos/software-report/SoftwareReport.Common.psm1

@@ -462,6 +462,16 @@ function Get-CabalVersion {
     return "Cabal $cabalVersion"
 }
 
+function Get-SwitchAudioOsxVersion {
+    $switchAudioVersion = Get-BrewPackageVersion -CommandName "SwitchAudioSource"
+    return "Switchaudio-osx $switchAudioVersion"
+}
+
+function Get-SoxVersion {
+    $soxVersion = Get-BrewPackageVersion -CommandName "sox"
+    return "Sox $soxVersion"
+}
+
 function Get-StackVersion {
     $stackVersion = Run-Command "stack --version" | Take-Part -Part 1 | ForEach-Object {$_.replace(",","")}
     return "Stack $stackVersion"

images/macos/software-report/SoftwareReport.Generator.ps1

@@ -145,6 +145,13 @@ if ($os.IsLessThanBigSur) {
     )
 }
 
+if (-not $os.IsHighSierra) {
+    $utilitiesList += @(
+        (Get-SwitchAudioOsxVersion),
+        (Get-SoxVersion)
+    )
+}
+
 $markdown += New-MDList -Style Unordered -Lines ($utilitiesList | Sort-Object)
 $markdown += New-MDNewLine
 

images/macos/templates/macOS-11.json

@@ -182,6 +182,7 @@
                 "./provision/core/nginx.sh",
                 "./provision/core/postgresql.sh",
                 "./provision/core/mongodb.sh",
+                "./provision/core/audiodevice.sh",
                 "./provision/core/vcpkg.sh",
                 "./provision/core/miniconda.sh",
                 "./provision/core/chrome.sh",

images/macos/tests/System.Tests.ps1

@@ -17,7 +17,7 @@ Describe "Certificate" {
     }
 }
 
-Describe "Audio device" -Skip:($os.IsHighSierra -or $os.IsBigSur) {
+Describe "Audio device" -Skip:($os.IsHighSierra) {
     It "Sox is installed" {
         "sox --version" | Should -ReturnZeroExitCode
     }
@@ -26,9 +26,13 @@ Describe "Audio device" -Skip:($os.IsHighSierra -or $os.IsBigSur) {
         "SwitchAudioSource -c" | Should -ReturnZeroExitCode
     }
 
-    It "Audio channel Soundflower (2ch)" {
+    It "Audio channel Soundflower (2ch)" -Skip:($os.IsBigSur) {
         SwitchAudioSource -c | Should -BeLikeExactly "Soundflower (2ch)"
     }
+
+    It "Audio channel BlackHole 2ch" -Skip:($os.IsLessThanBigSur) {
+        SwitchAudioSource -c | Should -BeLikeExactly "BlackHole 2ch"
+    }
 }
 
 Describe "Screen Resolution" -Skip:($os.IsHighSierra) {