* update transformer to able to recheck headers (#4)

* update transformer to able to recheck headers
* put cap on rechecking header
* integration test for recheck headers
* use enum for recheck headers param; make recheck cap configurable
* update integration tests with new test config
* update omni pkg with new recheck header column type
* update migration with new migration tool and final tweaks needed to accommodate changes in omni pkg

pkg/transformers/test_data/mocks/repository.go

@@ -3,6 +3,7 @@ package mocks
 import (
 	. "github.com/onsi/gomega"
 
+	"github.com/vulcanize/vulcanizedb/pkg/core"
 	"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
 )
 
@@ -11,6 +12,9 @@ type MockRepository struct {
 	markHeaderCheckedError           error
 	MarkHeaderCheckedPassedHeaderIDs []int64
 	CreatedHeaderIds                 []int64
+	missingHeaders                   []core.Header
+	allHeaders                       []core.Header
+	missingHeadersError              error
 	PassedStartingBlockNumber        int64
 	PassedEndingBlockNumber          int64
 	PassedHeaderID                   int64
@@ -33,10 +37,34 @@ func (repository *MockRepository) MarkHeaderChecked(headerID int64) error {
 	return repository.markHeaderCheckedError
 }
 
+func (repository *MockRepository) MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error) {
+	repository.PassedStartingBlockNumber = startingBlockNumber
+	repository.PassedEndingBlockNumber = endingBlockNumber
+	return repository.missingHeaders, repository.missingHeadersError
+}
+
+func (repository *MockRepository) RecheckHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error) {
+	repository.PassedStartingBlockNumber = startingBlockNumber
+	repository.PassedEndingBlockNumber = endingBlockNumber
+	return repository.allHeaders, nil
+}
+
 func (repository *MockRepository) SetDB(db *postgres.DB) {
 	repository.SetDbCalled = true
 }
 
+func (repository *MockRepository) SetMissingHeadersError(e error) {
+	repository.missingHeadersError = e
+}
+
+func (repository *MockRepository) SetAllHeaders(headers []core.Header) {
+	repository.allHeaders = headers
+}
+
+func (repository *MockRepository) SetMissingHeaders(headers []core.Header) {
+	repository.missingHeaders = headers
+}
+
 func (repository *MockRepository) SetMarkHeaderCheckedError(e error) {
 	repository.markHeaderCheckedError = e
 }

pkg/transformers/test_data/mocks/transformer.go

@@ -5,6 +5,7 @@ import (
 	"github.com/vulcanize/vulcanizedb/pkg/core"
 	"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
 	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared/constants"
 )
 
 type MockTransformer struct {
@@ -15,7 +16,7 @@ type MockTransformer struct {
 	config           shared.TransformerConfig
 }
 
-func (mh *MockTransformer) Execute(logs []types.Log, header core.Header) error {
+func (mh *MockTransformer) Execute(logs []types.Log, header core.Header, recheckHeaders constants.TransformerExecution) error {
 	if mh.ExecuteError != nil {
 		return mh.ExecuteError
 	}