Do not log error after every mutator exit, it's redundant

acceptance/bundle/override/job_tasks/out.development.stderr.txt

@@ -1,8 +1,5 @@
 
 >>> errcode $CLI bundle validate -o json -t development
-11:26:56 ERROR Error: file ./test1.py not found pid=3731 mutator=initialize mutator=seq mutator=TranslatePaths
-11:26:56 ERROR Error: file ./test1.py not found pid=3731 mutator=initialize mutator=seq
-11:26:56 ERROR Error: file ./test1.py not found pid=3731 mutator=initialize
 Error: file ./test1.py not found
 
 

acceptance/bundle/override/job_tasks/output.txt

@@ -29,9 +29,6 @@
 }
 
 >>> errcode $CLI bundle validate -o json -t staging
-11:26:56 ERROR Error: file ./test1.py not found pid=3757 mutator=initialize mutator=seq mutator=TranslatePaths
-11:26:56 ERROR Error: file ./test1.py not found pid=3757 mutator=initialize mutator=seq
-11:26:56 ERROR Error: file ./test1.py not found pid=3757 mutator=initialize
 Error: file ./test1.py not found
 
 
@@ -67,9 +64,6 @@ Exit code: 1
 }
 
 >>> errcode $CLI bundle validate -t staging
-11:26:56 ERROR Error: file ./test1.py not found pid=3761 mutator=initialize mutator=seq mutator=TranslatePaths
-11:26:56 ERROR Error: file ./test1.py not found pid=3761 mutator=initialize mutator=seq
-11:26:56 ERROR Error: file ./test1.py not found pid=3761 mutator=initialize
 Error: file ./test1.py not found
 
 Name: override_job_tasks

acceptance/bundle/paths/fallback/output.txt

@@ -4,12 +4,6 @@
 Exit code: 0
 
 >>> $CLI bundle validate -t error
-11:26:57 ERROR Error: notebook this value is overridden not found. Local notebook references are expected
-to contain one of the following file extensions: [.py, .r, .scala, .sql, .ipynb] pid=3806 mutator=initialize mutator=seq mutator=TranslatePaths
-11:26:57 ERROR Error: notebook this value is overridden not found. Local notebook references are expected
-to contain one of the following file extensions: [.py, .r, .scala, .sql, .ipynb] pid=3806 mutator=initialize mutator=seq
-11:26:57 ERROR Error: notebook this value is overridden not found. Local notebook references are expected
-to contain one of the following file extensions: [.py, .r, .scala, .sql, .ipynb] pid=3806 mutator=initialize
 Error: notebook this value is overridden not found. Local notebook references are expected
 to contain one of the following file extensions: [.py, .r, .scala, .sql, .ipynb]
 

acceptance/bundle/paths/nominal/output.txt

@@ -4,12 +4,6 @@
 Exit code: 0
 
 >>> $CLI bundle validate -t error
-11:26:57 ERROR Error: notebook this value is overridden not found. Local notebook references are expected
-to contain one of the following file extensions: [.py, .r, .scala, .sql, .ipynb] pid=3814 mutator=initialize mutator=seq mutator=TranslatePaths
-11:26:57 ERROR Error: notebook this value is overridden not found. Local notebook references are expected
-to contain one of the following file extensions: [.py, .r, .scala, .sql, .ipynb] pid=3814 mutator=initialize mutator=seq
-11:26:57 ERROR Error: notebook this value is overridden not found. Local notebook references are expected
-to contain one of the following file extensions: [.py, .r, .scala, .sql, .ipynb] pid=3814 mutator=initialize
 Error: notebook this value is overridden not found. Local notebook references are expected
 to contain one of the following file extensions: [.py, .r, .scala, .sql, .ipynb]
 

acceptance/bundle/syncroot/dotdot-git/output.txt

@@ -1,6 +1,3 @@
-11:26:57 ERROR Error: path "$TMPDIR" is not within repository root "$TMPDIR/myrepo" pid=3887 mutator=validate mutator (read-only)=parallel mutator (read-only)=validate:files_to_sync
-11:26:57 ERROR Error: path "$TMPDIR" is not within repository root "$TMPDIR/myrepo" pid=3887 mutator=validate mutator (read-only)=parallel
-11:26:57 ERROR Error: path "$TMPDIR" is not within repository root "$TMPDIR/myrepo" pid=3887 mutator=validate
 Error: path "$TMPDIR" is not within repository root "$TMPDIR/myrepo"
 
 Name: test-bundle

acceptance/bundle/templates/dbt-sql/output.txt

@@ -22,7 +22,7 @@ Workspace:
 Validation OK!
 
 >>> $CLI bundle validate -t prod
-11:26:57  WARN target with 'mode: production' should specify an explicit 'targets.prod.git' configuration pid=3865 mutator=initialize mutator=seq mutator=ProcessTargetMode
+11:31:28  WARN target with 'mode: production' should specify an explicit 'targets.prod.git' configuration pid=20104 mutator=initialize mutator=seq mutator=ProcessTargetMode
 Name: my_dbt_sql
 Target: prod
 Workspace:

acceptance/bundle/templates/default-python/output.txt

@@ -20,7 +20,7 @@ Workspace:
 Validation OK!
 
 >>> $CLI bundle validate -t prod
-11:26:57  WARN target with 'mode: production' should specify an explicit 'targets.prod.git' configuration pid=3862 mutator=initialize mutator=seq mutator=ProcessTargetMode
+11:31:29  WARN target with 'mode: production' should specify an explicit 'targets.prod.git' configuration pid=20387 mutator=initialize mutator=seq mutator=ProcessTargetMode
 Name: my_default_python
 Target: prod
 Workspace:

acceptance/bundle/templates/default-sql/output.txt

@@ -22,7 +22,7 @@ Workspace:
 Validation OK!
 
 >>> $CLI bundle validate -t prod
-11:26:57  WARN target with 'mode: production' should specify an explicit 'targets.prod.git' configuration pid=3938 mutator=initialize mutator=seq mutator=ProcessTargetMode
+11:31:29  WARN target with 'mode: production' should specify an explicit 'targets.prod.git' configuration pid=20374 mutator=initialize mutator=seq mutator=ProcessTargetMode
 Name: my_default_sql
 Target: prod
 Workspace:

acceptance/bundle/undefined_resources/output.txt

@@ -1,10 +1,3 @@
-11:26:57 ERROR Error: pipeline undefined-pipeline is not defined pid=3810 mutator=initialize mutator=seq mutator=validate:AllResourcesHaveValues
-11:26:57 ERROR Error: pipeline undefined-pipeline is not defined pid=3810 mutator=initialize mutator=seq
-11:26:57 ERROR Error: pipeline undefined-pipeline is not defined pid=3810 mutator=initialize
-Error: pipeline undefined-pipeline is not defined
-  at resources.pipelines.undefined-pipeline
-  in databricks.yml:14:24
-
 Error: experiment undefined-experiment is not defined
   at resources.experiments.undefined-experiment
   in databricks.yml:11:26
@@ -13,6 +6,10 @@ Error: job undefined-job is not defined
   at resources.jobs.undefined-job
   in databricks.yml:6:19
 
+Error: pipeline undefined-pipeline is not defined
+  at resources.pipelines.undefined-pipeline
+  in databricks.yml:14:24
+
 Found 3 errors
 
 Name: undefined-job

acceptance/bundle/variables/arg-repeat/output.txt

@@ -10,7 +10,6 @@ Exit code: 0
 }
 
 >>> errcode $CLI bundle validate --var a=one --var a=two
-11:26:57 ERROR Error: failed to assign two to a: variable has already been assigned value: one pid=3768 mutator=<func>
 Error: failed to assign two to a: variable has already been assigned value: one
 
 Name: arg-repeat

acceptance/bundle/variables/complex-transitive-deeper/output.txt

@@ -1,6 +1,3 @@
-11:26:57 ERROR Error: expected a map to index "variables.catalog.value.name", found string pid=3864 mutator=initialize mutator=seq mutator=ResolveVariableReferences
-11:26:57 ERROR Error: expected a map to index "variables.catalog.value.name", found string pid=3864 mutator=initialize mutator=seq
-11:26:57 ERROR Error: expected a map to index "variables.catalog.value.name", found string pid=3864 mutator=initialize
 Error: expected a map to index "variables.catalog.value.name", found string
 
 {

acceptance/bundle/variables/cycle/output.txt

@@ -1,6 +1,3 @@
-11:26:57 ERROR Error: cycle detected in field resolution: variables.a.default -> var.b -> var.a -> var.b pid=3849 mutator=initialize mutator=seq mutator=ResolveVariableReferences
-11:26:57 ERROR Error: cycle detected in field resolution: variables.a.default -> var.b -> var.a -> var.b pid=3849 mutator=initialize mutator=seq
-11:26:57 ERROR Error: cycle detected in field resolution: variables.a.default -> var.b -> var.a -> var.b pid=3849 mutator=initialize
 Error: cycle detected in field resolution: variables.a.default -> var.b -> var.a -> var.b
 
 {

acceptance/bundle/variables/empty/output.txt

@@ -1,6 +1,3 @@
-11:26:57 ERROR Error: no value assigned to required variable a. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_a environment variable pid=3821 mutator=initialize mutator=seq mutator=SetVariables
-11:26:57 ERROR Error: no value assigned to required variable a. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_a environment variable pid=3821 mutator=initialize mutator=seq
-11:26:57 ERROR Error: no value assigned to required variable a. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_a environment variable pid=3821 mutator=initialize
 Error: no value assigned to required variable a. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_a environment variable
 
 Name: empty${var.a}

acceptance/bundle/variables/env_overrides/output.txt

@@ -9,9 +9,6 @@
 "prod-a env-var-b"
 
 >>> errcode $CLI bundle validate -t env-missing-a-required-variable-assignment
-11:26:57 ERROR Error: no value assigned to required variable b. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_b environment variable pid=4097 mutator=initialize mutator=seq mutator=SetVariables
-11:26:57 ERROR Error: no value assigned to required variable b. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_b environment variable pid=4097 mutator=initialize mutator=seq
-11:26:57 ERROR Error: no value assigned to required variable b. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_b environment variable pid=4097 mutator=initialize
 Error: no value assigned to required variable b. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_b environment variable
 
 Name: test bundle
@@ -25,9 +22,6 @@ Found 1 error
 Exit code: 1
 
 >>> errcode $CLI bundle validate -t env-using-an-undefined-variable
-11:26:57 ERROR Error: variable c is not defined but is assigned a value pid=4110 mutator=load mutator=seq mutator=SelectTarget(env-using-an-undefined-variable)
-11:26:57 ERROR Error: variable c is not defined but is assigned a value pid=4110 mutator=load mutator=seq
-11:26:57 ERROR Error: variable c is not defined but is assigned a value pid=4110 mutator=load
 Error: variable c is not defined but is assigned a value
 
 Name: test bundle

acceptance/bundle/variables/host/output.txt

@@ -1,8 +1,5 @@
 
 >>> errcode $CLI bundle validate -o json
-11:26:57 ERROR Error: failed during request visitor: parse "https://${var.host}": invalid character "{" in host name pid=4050 mutator=initialize mutator=seq mutator=PopulateCurrentUser
-11:26:57 ERROR Error: failed during request visitor: parse "https://${var.host}": invalid character "{" in host name pid=4050 mutator=initialize mutator=seq
-11:26:57 ERROR Error: failed during request visitor: parse "https://${var.host}": invalid character "{" in host name pid=4050 mutator=initialize
 Error: failed during request visitor: parse "https://${var.host}": invalid character "{" in host name
 
 {
@@ -29,9 +26,6 @@ Error: failed during request visitor: parse "https://${var.host}": invalid chara
 Exit code: 1
 
 >>> errcode $CLI bundle validate
-11:26:57 ERROR Error: failed during request visitor: parse "https://${var.host}": invalid character "{" in host name pid=4054 mutator=initialize mutator=seq mutator=PopulateCurrentUser
-11:26:57 ERROR Error: failed during request visitor: parse "https://${var.host}": invalid character "{" in host name pid=4054 mutator=initialize mutator=seq
-11:26:57 ERROR Error: failed during request visitor: parse "https://${var.host}": invalid character "{" in host name pid=4054 mutator=initialize
 Error: failed during request visitor: parse "https://${var.host}": invalid character "{" in host name
 
 Name: host

acceptance/bundle/variables/vanilla/output.txt

@@ -3,9 +3,6 @@
 "abc def"
 
 >>> errcode $CLI bundle validate
-11:26:57 ERROR Error: no value assigned to required variable b. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_b environment variable pid=3780 mutator=initialize mutator=seq mutator=SetVariables
-11:26:57 ERROR Error: no value assigned to required variable b. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_b environment variable pid=3780 mutator=initialize mutator=seq
-11:26:57 ERROR Error: no value assigned to required variable b. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_b environment variable pid=3780 mutator=initialize
 Error: no value assigned to required variable b. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_b environment variable
 
 Name: ${var.a} ${var.b}

bundle/mutator.go

@@ -35,17 +35,7 @@ func Apply(ctx context.Context, b *Bundle, m Mutator) diag.Diagnostics {
 		}
 	}()
 
-	diags := m.Apply(ctx, b)
-
-	// Log error in diagnostics if any.
-	// Note: errors should be logged when constructing them
-	// such that they are not logged multiple times.
-	// If this is done, we can omit this block.
-	if err := diags.Error(); err != nil {
-		log.Errorf(ctx, "Error: %s", err)
-	}
-
-	return diags
+	return m.Apply(ctx, b)
 }
 
 type funcMutator struct {

bundle/mutator_read_only.go

@@ -20,10 +20,5 @@ func ApplyReadOnly(ctx context.Context, rb ReadOnlyBundle, m ReadOnlyMutator) di
 	ctx = log.NewContext(ctx, log.GetLogger(ctx).With("mutator (read-only)", m.Name()))
 
 	log.Debugf(ctx, "ApplyReadOnly")
-	diags := m.Apply(ctx, rb)
-	if err := diags.Error(); err != nil {
-		log.Errorf(ctx, "Error: %s", err)
-	}
-
-	return diags
+	return m.Apply(ctx, rb)
 }