Enable acceptance tests for manually running against the cloud (#2120)

## Changes
- If CLOUD_ENV variable is set, acceptance will no longer set up server
& override DATABRICKS_HOST/DATABRICKS_TOKEN/HOME env vars.
- I've updated replacements logic in testdiff to use tester /
tester@databricks.com convention.

## Tests
Manually running current acceptance tests against dogfood on my laptop I
get all test pass except for 2 failures.

```
    --- FAIL: TestAccept/bundle/variables/env_overrides (0.09s)
    --- FAIL: TestAccept/bundle/variables/resolve-builtin (1.30s)
```

acceptance/acceptance_test.go

@@ -1,6 +1,7 @@
 package acceptance_test
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"io"
@@ -17,6 +18,7 @@ import (
 	"github.com/databricks/cli/internal/testutil"
 	"github.com/databricks/cli/libs/env"
 	"github.com/databricks/cli/libs/testdiff"
+	"github.com/databricks/databricks-sdk-go"
 	"github.com/stretchr/testify/require"
 )
 
@@ -45,19 +47,33 @@ func TestAccept(t *testing.T) {
 	// Make helper scripts available
 	t.Setenv("PATH", fmt.Sprintf("%s%c%s", filepath.Join(cwd, "bin"), os.PathListSeparator, os.Getenv("PATH")))
 
-	server := StartServer(t)
-	AddHandlers(server)
-	// Redirect API access to local server:
-	t.Setenv("DATABRICKS_HOST", fmt.Sprintf("http://127.0.0.1:%d", server.Port))
-	t.Setenv("DATABRICKS_TOKEN", "dapi1234")
-
-	homeDir := t.TempDir()
-	// Do not read user's ~/.databrickscfg
-	t.Setenv(env.HomeEnvVar(), homeDir)
-
 	repls := testdiff.ReplacementsContext{}
 	repls.Set(execPath, "$CLI")
 
+	ctx := context.Background()
+	cloudEnv := os.Getenv("CLOUD_ENV")
+
+	if cloudEnv == "" {
+		server := StartServer(t)
+		AddHandlers(server)
+		// Redirect API access to local server:
+		t.Setenv("DATABRICKS_HOST", fmt.Sprintf("http://127.0.0.1:%d", server.Port))
+		t.Setenv("DATABRICKS_TOKEN", "dapi1234")
+
+		homeDir := t.TempDir()
+		// Do not read user's ~/.databrickscfg
+		t.Setenv(env.HomeEnvVar(), homeDir)
+	}
+
+	workspaceClient, err := databricks.NewWorkspaceClient()
+	require.NoError(t, err)
+
+	user, err := workspaceClient.CurrentUser.Me(ctx)
+	require.NoError(t, err)
+	require.NotNil(t, user)
+	testdiff.PrepareReplacementsUser(t, &repls, *user)
+	testdiff.PrepareReplacements(t, &repls, workspaceClient)
+
 	testDirs := getTests(t)
 	require.NotEmpty(t, testDirs)
 	for _, dir := range testDirs {

acceptance/bundle/override/job_cluster/output.txt

@@ -4,7 +4,7 @@
   "foo": {
     "deployment": {
       "kind": "BUNDLE",
-      "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/override_job_cluster/development/state/metadata.json"
+      "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/override_job_cluster/development/state/metadata.json"
     },
     "edit_mode": "UI_LOCKED",
     "format": "MULTI_TASK",
@@ -32,7 +32,7 @@
   "foo": {
     "deployment": {
       "kind": "BUNDLE",
-      "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/override_job_cluster/staging/state/metadata.json"
+      "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/override_job_cluster/staging/state/metadata.json"
     },
     "edit_mode": "UI_LOCKED",
     "format": "MULTI_TASK",

acceptance/bundle/override/job_cluster_var/output.txt

@@ -4,7 +4,7 @@
   "foo": {
     "deployment": {
       "kind": "BUNDLE",
-      "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/override_job_cluster/development/state/metadata.json"
+      "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/override_job_cluster/development/state/metadata.json"
     },
     "edit_mode": "UI_LOCKED",
     "format": "MULTI_TASK",
@@ -31,8 +31,8 @@
 Name: override_job_cluster
 Target: development
 Workspace:
-  User: tester@databricks.com
+  User: $USERNAME
-  Path: /Workspace/Users/tester@databricks.com/.bundle/override_job_cluster/development
+  Path: /Workspace/Users/$USERNAME/.bundle/override_job_cluster/development
 
 Validation OK!
 
@@ -41,7 +41,7 @@ Validation OK!
   "foo": {
     "deployment": {
       "kind": "BUNDLE",
-      "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/override_job_cluster/staging/state/metadata.json"
+      "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/override_job_cluster/staging/state/metadata.json"
     },
     "edit_mode": "UI_LOCKED",
     "format": "MULTI_TASK",
@@ -68,7 +68,7 @@ Validation OK!
 Name: override_job_cluster
 Target: staging
 Workspace:
-  User: tester@databricks.com
+  User: $USERNAME
-  Path: /Workspace/Users/tester@databricks.com/.bundle/override_job_cluster/staging
+  Path: /Workspace/Users/$USERNAME/.bundle/override_job_cluster/staging
 
 Validation OK!

acceptance/bundle/override/job_tasks/output.txt

@@ -69,8 +69,8 @@ Error: file ./test1.py not found
 Name: override_job_tasks
 Target: staging
 Workspace:
-  User: tester@databricks.com
+  User: $USERNAME
-  Path: /Workspace/Users/tester@databricks.com/.bundle/override_job_tasks/staging
+  Path: /Workspace/Users/$USERNAME/.bundle/override_job_tasks/staging
 
 Found 1 error
 

acceptance/bundle/override/merge-string-map/output.txt

@@ -21,7 +21,7 @@ Warning: expected map, found string
 Name: merge-string-map
 Target: dev
 Workspace:
-  User: tester@databricks.com
+  User: $USERNAME
-  Path: /Workspace/Users/tester@databricks.com/.bundle/merge-string-map/dev
+  Path: /Workspace/Users/$USERNAME/.bundle/merge-string-map/dev
 
 Found 1 warning

acceptance/bundle/override/pipeline_cluster/output.txt

@@ -14,7 +14,7 @@
     ],
     "deployment": {
       "kind": "BUNDLE",
-      "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/override_pipeline_cluster/development/state/metadata.json"
+      "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/override_pipeline_cluster/development/state/metadata.json"
     },
     "name": "job",
     "permissions": []
@@ -36,7 +36,7 @@
     ],
     "deployment": {
       "kind": "BUNDLE",
-      "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/override_pipeline_cluster/staging/state/metadata.json"
+      "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/override_pipeline_cluster/staging/state/metadata.json"
     },
     "name": "job",
     "permissions": []

acceptance/bundle/variables/complex/out.default.json

@@ -4,7 +4,7 @@
       "my_job": {
         "deployment": {
           "kind": "BUNDLE",
-          "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/complex-variables/default/state/metadata.json"
+          "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/complex-variables/default/state/metadata.json"
         },
         "edit_mode": "UI_LOCKED",
         "format": "MULTI_TASK",

acceptance/bundle/variables/complex/out.dev.json

@@ -4,7 +4,7 @@
       "my_job": {
         "deployment": {
           "kind": "BUNDLE",
-          "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/complex-variables/dev/state/metadata.json"
+          "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/complex-variables/dev/state/metadata.json"
         },
         "edit_mode": "UI_LOCKED",
         "format": "MULTI_TASK",

acceptance/bundle/variables/complex_multiple_files/output.txt

@@ -4,7 +4,7 @@
       "my_job": {
         "deployment": {
           "kind": "BUNDLE",
-          "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/complex-variables-multiple-files/dev/state/metadata.json"
+          "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/complex-variables-multiple-files/dev/state/metadata.json"
         },
         "edit_mode": "UI_LOCKED",
         "format": "MULTI_TASK",

acceptance/bundle/variables/empty/output.txt

@@ -3,8 +3,8 @@ Error: no value assigned to required variable a. Assignment can be done through
 Name: empty${var.a}
 Target: default
 Workspace:
-  User: tester@databricks.com
+  User: $USERNAME
-  Path: /Workspace/Users/tester@databricks.com/.bundle/empty${var.a}/default
+  Path: /Workspace/Users/$USERNAME/.bundle/empty${var.a}/default
 
 Found 1 error
 

acceptance/bundle/variables/env_overrides/output.txt

@@ -14,8 +14,8 @@ Error: no value assigned to required variable b. Assignment can be done through
 Name: test bundle
 Target: env-missing-a-required-variable-assignment
 Workspace:
-  User: tester@databricks.com
+  User: $USERNAME
-  Path: /Workspace/Users/tester@databricks.com/.bundle/test bundle/env-missing-a-required-variable-assignment
+  Path: /Workspace/Users/$USERNAME/.bundle/test bundle/env-missing-a-required-variable-assignment
 
 Found 1 error
 

acceptance/bundle/variables/resolve-builtin/output.txt

@@ -1,8 +1,8 @@
 {
   "artifact_path": "TestResolveVariableReferences/bar/artifacts",
   "current_user": {
-    "short_name": "tester",
+    "short_name": "$USERNAME",
-    "userName": "tester@databricks.com"
+    "userName": "$USERNAME"
   },
   "file_path": "TestResolveVariableReferences/bar/baz",
   "resource_path": "TestResolveVariableReferences/bar/resources",

acceptance/bundle/variables/vanilla/output.txt

@@ -8,8 +8,8 @@ Error: no value assigned to required variable b. Assignment can be done through
 Name: ${var.a} ${var.b}
 Target: default
 Workspace:
-  User: tester@databricks.com
+  User: $USERNAME
-  Path: /Workspace/Users/tester@databricks.com/.bundle/${var.a} ${var.b}/default
+  Path: /Workspace/Users/$USERNAME/.bundle/${var.a} ${var.b}/default
 
 Found 1 error
 

acceptance/bundle/variables/variable_overrides_in_target/output.txt

@@ -12,7 +12,7 @@
       "continuous": true,
       "deployment": {
         "kind": "BUNDLE",
-        "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/foobar/use-default-variable-values/state/metadata.json"
+        "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/foobar/use-default-variable-values/state/metadata.json"
       },
       "name": "a_string",
       "permissions": []
@@ -33,7 +33,7 @@
       "continuous": true,
       "deployment": {
         "kind": "BUNDLE",
-        "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/foobar/override-string-variable/state/metadata.json"
+        "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/foobar/override-string-variable/state/metadata.json"
       },
       "name": "overridden_string",
       "permissions": []
@@ -54,7 +54,7 @@
       "continuous": true,
       "deployment": {
         "kind": "BUNDLE",
-        "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/foobar/override-int-variable/state/metadata.json"
+        "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/foobar/override-int-variable/state/metadata.json"
       },
       "name": "a_string",
       "permissions": []
@@ -75,7 +75,7 @@
       "continuous": false,
       "deployment": {
         "kind": "BUNDLE",
-        "metadata_file_path": "/Workspace/Users/tester@databricks.com/.bundle/foobar/override-both-bool-and-string-variables/state/metadata.json"
+        "metadata_file_path": "/Workspace/Users/$USERNAME/.bundle/foobar/override-both-bool-and-string-variables/state/metadata.json"
       },
       "name": "overridden_string",
       "permissions": []