Rework apt-fast installation to get rid of apt repo (#3336)

* select-xamarin-sdk-v2

* Update select-xamarin-sdk-v2.sh

* change warning message

* check existed framework version

* check framework version review points

* Update apt.sh

* Update SoftwareReport.Tools.psm1

* remove a commented code

* Fixed review points

* return unattended-upgrades

* Fixed a viewing version

* add links for apt fast

* apt fast version

* apt-fast

* final check version

* add which apt-fast

images/linux/scripts/SoftwareReport/SoftwareReport.Tools.psm1

@@ -4,7 +4,9 @@ function Get-AnsibleVersion {
 }
 
 function Get-AptFastVersion {
-    $aptFastVersion = (dpkg-query --showformat='${Version}' --show apt-fast).Split('-')[0]
+    $versionFileContent = Get-Content (which apt-fast) -Raw
+    $match = [Regex]::Match($versionFileContent, '# apt-fast v(.+)\n')
+    $aptFastVersion = $match.Groups[1].Value
     return "apt-fast $aptFastVersion"
 }
 

images/linux/scripts/base/apt.sh

@@ -17,9 +17,6 @@ echo "APT::Get::Assume-Yes \"true\";" > /etc/apt/apt.conf.d/90assumeyes
 # Uninstall unattended-upgrades
 apt-get purge unattended-upgrades
 
-# Use apt-fast for parallel downloads
-add-apt-repository -y ppa:apt-fast/stable
-
 # Need to limit arch for default apt repos due to 
 # https://github.com/actions/virtual-environments/issues/1961
 sed -i'' -E 's/^deb http:\/\/(azure.archive|security).ubuntu.com/deb [arch=amd64,i386] http:\/\/\1.ubuntu.com/' /etc/apt/sources.list
@@ -28,5 +25,9 @@ echo 'APT sources limited to the actual architectures'
 cat /etc/apt/sources.list
 
 apt-get update
-# Install aria2 , jq and apt-fast
-apt-get install aria2 jq apt-fast
+# Install aria2 , jq
+apt-get install aria2 jq
+
+# Install apt-fast using quick-install.sh
+# https://github.com/ilikenwf/apt-fast
+bash -c "$(curl -sL https://raw.githubusercontent.com/ilikenwf/apt-fast/master/quick-install.sh)"