[ubunty] Add note about LLVM repo (#3523)

* Add LLVM libc++ info

* combine clang, clang-format into LLVM components

* fix formatting

Co-authored-by: Sergey Dolin <v-sedoli@micorosoft.com>

images/linux/scripts/SoftwareReport/SoftwareReport.Common.psm1

@@ -44,6 +44,13 @@ function Get-ClangVersions {
     return "Clang " + $clangVersions
 }
 
+function Get-LLVMInfo {
+    $clangVersions = Get-ClangToolVersions -ToolName "clang"
+    $clangFormatVersions = Get-ClangToolVersions -ToolName "clang-format"
+    $aptSourceRepo = Get-AptSourceRepository -PackageName "llvm"
+    return "LLVM components: Clang $clangFormatVersions, Clang-format $clangFormatVersions (apt source: $aptSourceRepo)"
+}
+
 function Get-ClangFormatVersions {
     $clangFormatVersions = Get-ClangToolVersions -ToolName "clang-format"
     return "Clang-format " + $clangFormatVersions

images/linux/scripts/SoftwareReport/SoftwareReport.Generator.ps1

@@ -35,12 +35,10 @@ $markdown += New-MDList -Style Unordered -Lines @(
 $markdown += New-MDHeader "Installed Software" -Level 2
 $markdown += New-MDHeader "Language and Runtime" -Level 3
 
-$markdown += New-MDList -Style Unordered -Lines (@(
+$runtimesList = @(
         (Get-BashVersion),
         (Get-CPPVersions),
         (Get-FortranVersions),
-        (Get-ClangVersions),
-        (Get-ClangFormatVersions),
         (Get-ErlangVersion),
         (Get-ErlangRebar3Version),
         (Get-MonoVersion),
@@ -52,8 +50,16 @@ $markdown += New-MDList -Style Unordered -Lines (@(
         (Get-RubyVersion),
         (Get-SwiftVersion),
         (Get-JuliaVersion)
-        ) | Sort-Object
-)
+        ) 
+
+if (Test-IsUbuntu20) {
+    $runtimesList += (Get-LLVMInfo)
+} else {
+    $runtimesList += (Get-ClangVersions)
+    $runtimesList += (Get-ClangFormatVersions)
+}
+
+$markdown += New-MDList -Style Unordered -Lines ($runtimesList | Sort-Object)
 
 $markdown += New-MDHeader "Package Management" -Level 3
 

images/linux/scripts/installers/clang.sh

@@ -15,6 +15,8 @@ function InstallClang {
     if [[ $version =~ 9 ]] && isUbuntu16 || [[ $version =~ 12 ]]; then
         ./llvm.sh $version
         apt-get install -y "clang-format-$version"
+	llvm_repo=$(grep '^deb.*apt.llvm.org\/' /etc/apt/sources.list)
+	echo "llvm $llvm_repo" >> $HELPER_SCRIPTS/apt-sources.txt
     else
         apt-get install -y "clang-$version" "lldb-$version" "lld-$version" "clang-format-$version"
     fi