more refactoring + formatting to AppVeyor's init (PowerShell) script

appveyor.yml

@@ -23,49 +23,46 @@ cache:
 environment:
   VERSION_SIMPLE: '{version}'
   VERSION_INFORMATIONAL: '{version}'
-  VERSION_SUFFIX: '-preview-$(APPVEYOR_BUILD_NUMBER)'
-  VERSION_SUFFIX_TAG: '-beta-$(APPVEYOR_BUILD_NUMBER)'
+  VERSION_UNSTABLE_SUFFIX: '-preview-$(APPVEYOR_BUILD_NUMBER)'
 
 init:
 - ps: |
     $env:VERSION_INFORMATIONAL = $env:APPVEYOR_BUILD_VERSION
     $env:VERSION_SIMPLE = "$env:APPVEYOR_BUILD_VERSION.$env:APPVEYOR_BUILD_NUMBER"
+    $env:GITHUB_REPO_API = "https://api.github.com/repos/$env:APPVEYOR_REPO_NAME/releases/latest"
 
-    if ($env:APPVEYOR_REPO_TAG -eq "true" -and $env:APPVEYOR_REPO_TAG_NAME)
-    {
-        $env:VERSION_SUFFIX = $env:VERSION_SUFFIX_TAG
-        $tag_version = $env:APPVEYOR_REPO_TAG_NAME.TrimStart("v")
-        Write-Host "Building a tag: $tag_version";
+    if ($env:APPVEYOR_REPO_TAG -eq "true" -and $env:APPVEYOR_REPO_TAG_NAME) {
+        ### CHECK IF A IT'S A TAGGED BUILD
+        $git_current_tag = $env:APPVEYOR_REPO_TAG_NAME.TrimStart("v")
+        Write-Host "Building a tagged Git commit: $git_current_tag";
 
-        if ($tag_version -match '^([0-9]+\.[0-9]+\.[0-9]+)$' -Or $tag_version -match '([0-9]+[\.-][0-9]+[\.-][0-9]+-[-A-Za-z0-9]+)') 
-        {
-            $env:VERSION_INFORMATIONAL = "$tag_version"
+        if ($git_current_tag -match '^([0-9]+\.[0-9]+\.[0-9]+)$' -Or $git_current_tag -match '([0-9]+[\.-][0-9]+[\.-][0-9]+-[-A-Za-z0-9]+)') {
+            $env:VERSION_INFORMATIONAL = "$git_current_tag"
         }
-    } 
-    else
-    {
+    } else {
+        ### OTHERWISE IT'S A REGULAR BUILD
         try {
+            ### TRY TO GET VERSION FROM THE LATEST GITHUB TAG/REALEASE
             [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
-            $github_last_release=(Invoke-WebRequest -Uri https://api.github.com/repos/$env:APPVEYOR_REPO_NAME/releases/latest) -join '`n' | ConvertFrom-Json
-            $github_tag_name=$github_last_release.tag_name
-            if ($github_tag_name -match '^([0-9]+\.[0-9]+\.[0-9]+)$')
-            {
-                $github_tag_ver = [version]$github_tag_name
-                $github_tag_name = "{0}.{1}.{2}" -f $github_tag_ver.Major, $github_tag_ver.Minor, ($github_tag_ver.Build + 1)
+            $github_last_release=(Invoke-WebRequest -Uri $env:GITHUB_REPO_API) -join '`n' | ConvertFrom-Json
+            $github_last_tag=$github_last_release.tag_name.TrimStart("v")
+            if ($github_last_tag -match '^([0-9]+\.[0-9]+\.[0-9]+)$') {
+                $github_tag_ver = [version]$github_last_tag
+                $github_last_tag = "{0}.{1}.{2}" -f $github_tag_ver.Major, $github_tag_ver.Minor, ($github_tag_ver.Build + 1)
             }
-            $env:VERSION_INFORMATIONAL = $github_tag_name
+            $env:VERSION_INFORMATIONAL = $github_last_tag
         } catch {
             $env:VERSION_INFORMATIONAL = "1.0.0"
             Write-Host "Failed to get version from the last GitHub release falling back on '$env:VERSION_INFORMATIONAL' base version";
         }
 
-        $env:VERSION_INFORMATIONAL = "$env:VERSION_INFORMATIONAL$env:VERSION_SUFFIX"
+        $env:VERSION_INFORMATIONAL = "$env:VERSION_INFORMATIONAL$env:VERSION_UNSTABLE_SUFFIX"
     }
 
+    ### MAKE CALCULATED INFORMATIONAL VERSION THE ACTUAL BUILD VERSION
     Update-AppveyorBuild -Version $env:VERSION_INFORMATIONAL
     Write-Host "Using build version: $env:APPVEYOR_BUILD_VERSION";
 
-
 dotnet_csproj:
   patch: true
   file: '**\*.csproj'