Allow overriding the base path for a URL with custom endpoints

Signed-off-by: Modular Magician <[email protected]>

google/compute_forwarding_rule.go

@@ -170,7 +170,7 @@ func expandComputeForwardingRuleBackendService(v interface{}, d TerraformResourc
 		return "https://www.googleapis.com/compute/v1/" + v.(string), nil
 	} else if strings.HasPrefix(v.(string), "regions/") || strings.HasPrefix(v.(string), "zones/") {
 		// For regional or zonal resources which include their region or zone, just put the project in front.
-		url, err := replaceVars(d, config, "https://www.googleapis.com/compute/v1/projects/{{project}}/")
+		url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/")
 		if err != nil {
 			return nil, err
 		}
@@ -179,7 +179,7 @@ func expandComputeForwardingRuleBackendService(v interface{}, d TerraformResourc
 	// Anything else is assumed to be a regional resource, with a partial link that begins with the resource name.
 	// This isn't very likely - it's a last-ditch effort to extract something useful here.  We can do a better job
 	// as soon as MultiResourceRefs are working since we'll know the types that this field is supposed to point to.
-	url, err := replaceVars(d, config, "https://www.googleapis.com/compute/v1/projects/{{project}}/regions/{{region}}/")
+	url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/regions/{{region}}/")
 	if err != nil {
 		return nil, err
 	}
@@ -235,7 +235,7 @@ func expandComputeForwardingRuleTarget(v interface{}, d TerraformResourceData, c
 		return "https://www.googleapis.com/compute/v1/" + v.(string), nil
 	} else if strings.HasPrefix(v.(string), "regions/") || strings.HasPrefix(v.(string), "zones/") {
 		// For regional or zonal resources which include their region or zone, just put the project in front.
-		url, err := replaceVars(d, config, "https://www.googleapis.com/compute/v1/projects/{{project}}/")
+		url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/")
 		if err != nil {
 			return nil, err
 		}
@@ -244,7 +244,7 @@ func expandComputeForwardingRuleTarget(v interface{}, d TerraformResourceData, c
 	// Anything else is assumed to be a regional resource, with a partial link that begins with the resource name.
 	// This isn't very likely - it's a last-ditch effort to extract something useful here.  We can do a better job
 	// as soon as MultiResourceRefs are working since we'll know the types that this field is supposed to point to.
-	url, err := replaceVars(d, config, "https://www.googleapis.com/compute/v1/projects/{{project}}/regions/{{region}}/")
+	url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/regions/{{region}}/")
 	if err != nil {
 		return nil, err
 	}

google/compute_target_instance.go

@@ -98,7 +98,7 @@ func expandComputeTargetInstanceInstance(v interface{}, d TerraformResourceData,
 		return "https://www.googleapis.com/compute/v1/" + v.(string), nil
 	} else if strings.HasPrefix(v.(string), "regions/") || strings.HasPrefix(v.(string), "zones/") {
 		// For regional or zonal resources which include their region or zone, just put the project in front.
-		url, err := replaceVars(d, config, "https://www.googleapis.com/compute/v1/projects/{{project}}/")
+		url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/")
 		if err != nil {
 			return nil, err
 		}
@@ -107,7 +107,7 @@ func expandComputeTargetInstanceInstance(v interface{}, d TerraformResourceData,
 	// Anything else is assumed to be a regional resource, with a partial link that begins with the resource name.
 	// This isn't very likely - it's a last-ditch effort to extract something useful here.  We can do a better job
 	// as soon as MultiResourceRefs are working since we'll know the types that this field is supposed to point to.
-	url, err := replaceVars(d, config, "https://www.googleapis.com/compute/v1/projects/{{project}}/regions/{{region}}/")
+	url, err := replaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/regions/{{region}}/")
 	if err != nil {
 		return nil, err
 	}