Add comments and fix minor issues

build.ps1

@@ -1,5 +1,11 @@
-if (Test-Path "$pwd\temp") {
-	Remove-Item "$pwd\temp" -Recurse -Force
+# define temporary directory
+$tempdirectory = "$pwd\temp"
+# define services to patch
+$components = "Api","Identity"
+
+# delete old directories / files if applicable
+if (Test-Path "$tempdirectory") {
+	Remove-Item "$tempdirectory" -Recurse -Force
 }
 
 if (Test-Path -Path "$pwd\licenseGen\Core.dll" -PathType Leaf) {
@@ -14,61 +20,83 @@ if (Test-Path -Path "$pwd\bitBetter\cert.cert" -PathType Leaf) {
 	Remove-Item "$pwd\bitBetter\cert.cert" -Force
 }
 
+# generate keys if none are available
 if (!(Test-Path "$pwd\.keys")) {
 	.\generateKeys.ps1
 }
 
+# copy the key to bitBetter and licenseGen
 Copy-Item "$pwd\.keys\cert.cert" -Destination "$pwd\bitBetter"
 Copy-Item "$pwd\.keys\cert.pfx" -Destination "$pwd\licenseGen"
+
+# build bitBetter and clean the source directory after
 docker build -t bitbetter/bitbetter "$pwd\bitBetter"
 Remove-Item "$pwd\bitBetter\cert.cert" -Force
 
-$components = "Api","Identity"
+# gather all running instances
 $oldinstances = docker container ps --all -f Name=bitwarden --format '{{.ID}}'
 
+# stop all running instances
 foreach ($instance in $oldinstances) {
 	docker stop $instance
 	docker rm $instance
 }
 
-docker pull bitwarden/self-host:beta
+# update bitwarden itself
+$confirmation = Read-Host "Update bitwarden source container"
+if ($confirmation -eq 'y') {
+    docker pull bitwarden/self-host:beta
+}
 
+# stop and remove previous existing patch(ed) container
 docker stop bitwarden-patch
 docker rm bitwarden-patch
 docker image rm bitwarden-patch
+
+# start a new bitwarden instance so we can patch it
 $patchinstance = docker run -d --name bitwarden-patch bitwarden/self-host:beta
 
-New-item -ItemType Directory -Path "$pwd\temp"
+# create our temporary directory
+New-item -ItemType Directory -Path $tempdirectory
+
+# extract the files that need to be patched from the services that need to be patched into our temporary directory
 foreach ($component in $components) {
-	New-item -itemtype Directory -path "$pwd\temp\$component"
-	docker cp $patchinstance`:/app/$component/Core.dll "$pwd\temp\$component\Core.dll"
+	New-item -itemtype Directory -path "$tempdirectory\$component"
+	docker cp $patchinstance`:/app/$component/Core.dll "$tempdirectory\$component\Core.dll"
 }
 
-docker run -v "$pwd\temp:/app/mount" --rm bitbetter/bitbetter
+# run bitBetter, this applies our patches to the required files
+docker run -v "$tempdirectory`:/app/mount" --rm bitbetter/bitbetter
 
+# copy the patched files back into the temporary instance
 foreach ($component in $components) {
-	docker cp "$pwd\temp\$component\Core.dll" $patchinstance`:/app/$component/Core.dll
+	docker cp "$tempdirectory\$component\Core.dll" $patchinstance`:/app/$component/Core.dll
 }
 
+# create a new image from our patched instanced
 docker commit $patchinstance bitwarden-patch
+
+# stop and remove our temporary container
 docker stop bitwarden-patch
 docker rm bitwarden-patch
 
-Copy-Item "$pwd\temp\Identity\Core.dll" -Destination "$pwd\licenseGen"
-Remove-Item "$pwd\temp" -Recurse -Force
+# copy our patched library to the licenseGen source directory
+Copy-Item "$tempdirectory\Identity\Core.dll" -Destination "$pwd\licenseGen"
 
-$newinstances = @()
+# remove our temporary directory
+Remove-Item "$tempdirectory" -Recurse -Force
+
+# start all user requested instances
 foreach($line in Get-Content "$pwd\.servers\serverlist.txt") {
-	$newinstace = @(Invoke-Expression "& $line")
-	$newinstances += $newinstace
-}
-
-foreach ($instance in $newinstances) {
-	docker start $instance
+	Invoke-Expression "& $line"
 }
 
+# remove our bitBetter image
 docker image rm bitbetter/bitbetter
 
+# build the licenseGen
 docker build -t bitbetter/licensegen "$pwd\licenseGen"
+
+# clean the licenseGen source directory
 Remove-Item "$pwd\licenseGen\Core.dll" -Force
 Remove-Item "$pwd\licenseGen\cert.pfx" -Force