(GH-583) Change build script to github format

This commit changes the part of the buildscript that vendors the
specified release of the puppet-editor-services project when a custom
git ref is used, which is a branch on a github remote to use.

Previously the config was:

```
"editorServices": {
  "githubuser": "glennsarti",
  "githubrepo": "puppet-editor-services",
  "githubref": "spike-rearch-langserver"
}
```

This has been changed to:

```
"editorServices": {
  "githubrepo": "puppet-editor-services",
  "githubref": "glennsarti:spike-rearch-langserver"
},
```

This allows someone to copy paste the githubref from the Github page or
the terminal into the config to user without extra changes.

This also streamlines the code that parses the config into a less
complicated statement block.

Author: jpogran

psakefile.ps1

@@ -16,33 +16,43 @@ task Clean {
   }
 }
 
+# "editorServices": {
+#   "release": "0.26.0"
+# }
+# "editorServices": {
+#   "release": "0.26.0"
+#   "githubrepo": "puppet-editor-services",
+#   "githubuser": "glennsarti"
+# }
+  # "editorServices": {
+#   "githubrepo": "puppet-editor-services",
+#   "githubref": "glennsarti:spike-rearch-langserver"
+# },
 task VendorEditorServices {
-  $githubref = $config.editorComponents.editorServices.githubref
-  if ($config.editorComponents.editorServices.githubuser) {
-    $githubuser = $config.editorComponents.editorServices.githubuser
-  }
-  else {
-    $githubuser = 'lingua-pupuli'
-  }
-  if ($config.editorComponents.editorServices.githubrepo) {
-    $githubrepo = $config.editorComponents.editorServices.githubrepo
-  }
-  else {
-    $githubrepo = 'puppet-editor-services'
+  $githubrepo = $config.editorComponents.editorServices.githubrepo ?? 'puppet-editor-services'
+  $githubuser = $config.editorComponents.editorServices.githubuser ?? 'puppetlabs'
+
+  if($config.editorComponents.editorServices.release){
+    $releasenumber = $config.editorComponents.editorServices.release
+    $uri = "https://github.com/${githubuser}/${githubrepo}/releases/download/${releasenumber}/puppet_editor_services_${releasenumber}.zip";
+  }else{
+    $githubref = $config.editorComponents.editorServices.githubref;
+    if($githubref -notcontains ':'){
+      throw "Invalid githubref. Must be in user:branch format like glennsarti:spike-rearch-langserver"
+    }
+    $githubuser = $githubref.split(":")[0]
+    $githubbranch = $githubref.split(":")[1]
+    $uri = "https://github.com/${githubuser}/${githubrepo}/archive/${githubbranch}.zip"
   }
 
   if ($config.editorComponents.editorServices.directory) {
     Copy-Item -Path $config.editorComponents.editorServices.directory -Destination $languageServerPath -Recurse -Force
   }elseif ($config.editorComponents.editorServices.release) {
-    $releasenumber = $config.editorComponents.editorServices.release
-    $uri = "https://github.com/${githubuser}/${githubrepo}/releases/download/${releasenumber}/puppet_editor_services_${releasenumber}.zip";
     Invoke-RestMethod -Uri $uri -OutFile $languageServerZip -ErrorAction Stop
     Expand-Archive -Path $languageServerZip -DestinationPath $languageServerPath -ErrorAction Stop
     Remove-Item -Path $languageServerZip -Force
   }
   elseif ($config.editorComponents.editorServices.githubref) {
-    $githubref = $config.editorComponents.editorServices.githubref;
-    $uri = "https://github.com/${githubuser}/${githubrepo}/archive/${githubref}.zip"
     Invoke-RestMethod -Uri $uri -OutFile $languageServerZip -ErrorAction Stop
     Expand-Archive -Path $languageServerZip -DestinationPath "$($languageServerPath)/tmp" -ErrorAction Stop
     Move-Item -Path (Join-Path $languageServerPath "tmp/$githubrepo-$githubref/*") -Destination $languageServerPath
@@ -103,9 +113,13 @@ task Bump {
   exec { npm version --no-git-tag-version $packageVersion }
 }
 
+task Npm {
+  exec { npm install }
+}
+
 task Vendor -depends VendorEditorServices, VendorEditorSyntax, VendorCytoscape
 
-task Build -depends Clean, Vendor, CompileTypeScript
+task Build -depends Clean, Npm, Vendor, CompileTypeScript
 
 task Initial -depends Clean, Vendor