Adjust Migration Guidance + which files java transition run picks up (

#5568)

@billwert I had a local run of `appconfiguration` built locally for java, and my local verification absolutely omitted stuff from `target`.

Resolves #5565

eng/common/testproxy/transition-scripts/README.md

@@ -60,12 +60,12 @@ You will not be able to clean them up however. There exists [planned work](https
 - `language` repo - An individual language repository eg. azure-sdk-for-python or azure-sdk-for-net etc.
 - `assets` repo - The repository where assets are being moved to. <https://github.com/Azure/azure-sdk-assets>
 
-The `test-proxy` tool is integrated with the ability to automatically restore these assets. This process is kick-started by the presence of an `assets.json` alongside a dev's actual code. This means that while assets will be cloned down externally, the _map_ to those assets will be stored alongside the tests. Normally, it is recommended to create an `assets.json` under the path `sdk/<ServiceDirectory>`. However, more granular storage is also possible.
+The `test-proxy` tool is integrated with the ability to automatically restore these assets. This process is kick-started by the presence of an `assets.json` alongside a dev's actual code. This means that while assets will be cloned down externally, the _map_ to those assets will be stored alongside the tests. Normally, it is recommended to create an `assets.json` under the path `sdk/<ServiceDirectory>/<package>`. More granular storage than on an individual package level is possible, but each language's test framework would need to support that on a case-by-case basis.
 
-Service/Package-Level examples:
+Examples of current assets.json locations:
 
-- `sdk/storage/assets.json`
-- `sdk/storage/azure-storage-file-datalake/assets.json`
+- [`sdk/data/aztables/assets.json`](https://github.com/Azure/azure-sdk-for-go/blob/main/sdk/data/aztables/assets.json)
+- [`sdk/keyvault/azure-keyvault-keys/assets.json`](https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/keyvault/azure-keyvault-keys/assets.json)
 
 The location of the actual test code is referred to as the `language repo`.
 

eng/common/testproxy/transition-scripts/generate-assets-json.ps1

@@ -72,7 +72,7 @@ if ($UseTestRepo) {
 # 3. ios
 $LangRecordingDirs = @{"cpp" = "recordings";
   "go"                       = "recordings";
-  "java"                     = "session-records";
+  "java"                     = "src.*?session-records";
   "js"                       = "recordings";
   "net"                      = "SessionRecords";
   "python"                   = "recordings";
@@ -321,8 +321,8 @@ Function Move-AssetsFromLangRepo {
   )
   $filter = $LangRecordingDirs[$language]
   Write-Host "Language recording directory name=$filter"
-  Write-Host "Get-ChildItem -Recurse -Filter ""*.json"" | Where-Object { `$_.DirectoryName.Split([IO.Path]::DirectorySeparatorChar) -contains ""$filter"" }"
-  $filesToMove = Get-ChildItem -Recurse -Filter "*.json" | Where-Object { $_.DirectoryName.Split([IO.Path]::DirectorySeparatorChar) -contains "$filter" }
+  Write-Host "Get-ChildItem -Recurse -Filter ""*.json"" | Where-Object { if ($filter.Contains(""*"")) { $_.DirectoryName -match $filter } else { $_.DirectoryName.Split([IO.Path]::DirectorySeparatorChar) -contains ""$filter"" }"
+  $filesToMove = Get-ChildItem -Recurse -Filter "*.json" | Where-Object { if ($filter.Contains("*")) { $_.DirectoryName -match $filter } else { $_.DirectoryName.Split([IO.Path]::DirectorySeparatorChar) -contains "$filter" } }
   [string] $currentDir = Get-Location
 
   foreach ($fromFile in $filesToMove) {