Merge pull request #21 from vulcanize/file-output

Create CSV file publisher with updated schema

Makefile

@@ -6,7 +6,7 @@ mockgen_cmd=mockgen
 mocks: mocks/snapshot/publisher.go
 
 mocks/snapshot/publisher.go: pkg/types/publisher.go
-	$(mockgen_cmd) -package snapshot_mock -destination $@ -source $< Publisher
+	$(mockgen_cmd) -package snapshot_mock -destination $@ -source $< Publisher Tx
 
 clean:
 	rm -f mocks/snapshot/publisher.go

cmd/stateSnapshot.go

@@ -38,22 +38,25 @@ var stateSnapshotCmd = &cobra.Command{
 }
 
 func stateSnapshot() {
-	snapConfig := snapshot.NewConfig()
+	config := snapshot.NewConfig()
-	pgDB, err := snapshot.NewPostgresDB(snapConfig.DB)
+	edb, err := snapshot.NewLevelDB(config.Eth)
-	if err != nil {
-		logWithCommand.Fatal(err)
-	}
-	edb, err := snapshot.NewLevelDB(snapConfig.Eth)
 	if err != nil {
 		logWithCommand.Fatal(err)
 	}
 
-	snapshotService, err := snapshot.NewSnapshotService(edb, snapshot.NewPublisher(pgDB))
+	mode := viper.GetString("snapshot.mode")
+	pub, err := snapshot.NewPublisher(snapshot.SnapshotMode(mode), config)
+	if err != nil {
+		logWithCommand.Fatal(err)
+	}
+
+	snapshotService, err := snapshot.NewSnapshotService(edb, pub)
 	if err != nil {
 		logWithCommand.Fatal(err)
 	}
 	height := viper.GetInt64("snapshot.blockHeight")
 	workers := viper.GetUint("snapshot.workers")
+
 	if height < 0 {
 		if err := snapshotService.CreateLatestSnapshot(workers); err != nil {
 			logWithCommand.Fatal(err)

fixture/chaindata.go

@@ -0,0 +1,27 @@
+package fixture
+
+import (
+	"os"
+	"path/filepath"
+	"runtime"
+)
+
+// TODO: embed some mainnet data
+// import "embed"
+//_go:embed mainnet_data.tar.gz
+
+var (
+	ChaindataPath, AncientdataPath string
+)
+
+func init() {
+	_, path, _, _ := runtime.Caller(0)
+	wd := filepath.Dir(path)
+
+	ChaindataPath = filepath.Join(wd, "..", "fixture", "chaindata")
+	AncientdataPath = filepath.Join(ChaindataPath, "ancient")
+
+	if _, err := os.Stat(ChaindataPath); err != nil {
+		panic("must populate chaindata at " + ChaindataPath)
+	}
+}

fixture/service.go

@@ -10,7 +10,7 @@ import (
 	snapt "github.com/vulcanize/eth-pg-ipfs-state-snapshot/pkg/types"
 )
 
-var PublishHeader = &types.Header{
+var Header1 = types.Header{
 	ParentHash:  common.HexToHash("0x6341fd3daf94b748c72ced5a5b26028f2474f5f00d824504e4fa37a75767e177"),
 	UncleHash:   common.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347"),
 	Coinbase:    common.HexToAddress("0x0000000000000000000000000000000000000000"),
@@ -29,7 +29,7 @@ var PublishHeader = &types.Header{
 	BaseFee:     nil,
 }
 
-var StateNode = snapt.Node{
+var StateNode1 = snapt.Node{
 	NodeType: 0,
 	Path:     []byte{12, 0},
 	Key:      common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"),

go.mod

@@ -12,12 +12,13 @@ require (
 	github.com/google/go-cmp v0.5.6 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/gopherjs/gopherjs v0.0.0-20190430165422-3e4dfb77656c // indirect
-	github.com/ipfs/go-cid v0.1.0 // indirect
+	github.com/ipfs/go-cid v0.1.0
 	github.com/ipfs/go-datastore v0.5.1 // indirect
-	github.com/ipfs/go-ipfs-blockstore v1.1.2 // indirect
+	github.com/ipfs/go-ipfs-blockstore v1.1.2
+	github.com/ipfs/go-ipfs-ds-help v1.1.0
 	github.com/ipfs/go-log v1.0.5 // indirect
 	github.com/ipfs/go-log/v2 v2.4.0 // indirect
-	github.com/jmoiron/sqlx v1.2.0
+	github.com/jackc/pgx/v4 v4.15.0
 	github.com/kr/pretty v0.3.0 // indirect
 	github.com/multiformats/go-base32 v0.0.4 // indirect
 	github.com/multiformats/go-multihash v0.1.0
@@ -42,4 +43,4 @@ require (
 	lukechampine.com/blake3 v1.1.7 // indirect
 )
 
-replace github.com/ethereum/go-ethereum v1.10.15 => github.com/vulcanize/go-ethereum v1.10.15-statediff-2.0.0
+replace github.com/ethereum/go-ethereum v1.10.15 => github.com/vulcanize/go-ethereum v1.10.15-statediff-3.0.1

go.sum

@@ -37,6 +37,8 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
+github.com/Masterminds/semver/v3 v3.1.1 h1:hLg3sBzpNErnxhQtUy/mmLR2I9foDujNK030IGemrRc=
+github.com/Masterminds/semver/v3 v3.1.1/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
@@ -101,6 +103,7 @@ github.com/c-bata/go-prompt v0.2.2/go.mod h1:VzqtzE2ksDBcdln8G7mk2RX9QyGjH+OVqOC
 github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ=
 github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/cespare/cp v0.1.0 h1:SE+dxFebS7Iik5LK0tsi1k9ZCxEaFX4AjQmoyA+1dJk=
 github.com/cespare/cp v0.1.0/go.mod h1:SOGHArjBr4JWaSDEVpWpo/hNg6RoKrls6Oh40hiwW+s=
 github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
@@ -113,6 +116,10 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMn
 github.com/clbanning/x2j v0.0.0-20191024224557-825249438eec/go.mod h1:jMjuTZXRI4dUb/I5gc9Hdhagfvm9+RyrPryS/auMzxE=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cloudflare/cloudflare-go v0.14.0/go.mod h1:EnwdgGMaFOruiPZRFSgn+TsQ3hQ7C/YWzIGLeu5c304=
+github.com/cockroachdb/apd v1.1.0 h1:3LFP3629v+1aKXU5Q37mxmRxX/pIu1nijXydLShEq5I=
+github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
+github.com/cockroachdb/cockroach-go/v2 v2.0.3 h1:ZA346ACHIZctef6trOTwBAEvPVm1k0uLm/bb2Atc+S8=
+github.com/cockroachdb/cockroach-go/v2 v2.0.3/go.mod h1:hAuDgiVgDVkfirP9JnhXEfcXEPRKBpYdGz+l7mvYSzw=
 github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
 github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
 github.com/consensys/bavard v0.1.8-0.20210406032232-f3452dc9b572/go.mod h1:Bpd0/3mZuaj6Sj+PqrmIquiOKy397AKGThQPaGzNXAQ=
@@ -124,6 +131,7 @@ github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3Ee
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
+github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
@@ -141,6 +149,7 @@ github.com/deckarep/golang-set v0.0.0-20180603214616-504e848d77ea/go.mod h1:93vs
 github.com/decred/dcrd/lru v1.0.0/go.mod h1:mxKOwFd7lFjN2GZYsiz/ecgqR6kkYAl+0pz0tEMk218=
 github.com/deepmap/oapi-codegen v1.6.0/go.mod h1:ryDa9AgbELGeB+YEXE1dR53yAjHwFvE9iAUlWl9Al3M=
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+github.com/denisenkom/go-mssqldb v0.0.0-20191124224453-732737034ffd/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-bitstream v0.0.0-20180413035011-3522498ce2c8/go.mod h1:VMaSuZ+SZcx/wljOQKvp5srsbCiKDEb6K2wC4+PiBmQ=
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
@@ -158,7 +167,9 @@ github.com/edsrzf/mmap-go v1.0.0/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaB
 github.com/envoyproxy/go-control-plane v0.6.9/go.mod h1:SBwIajubJHhxtWwsL9s8ss4safvEdbitLhGGK48rN6g=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
+github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5/go.mod h1:a2zkGnVExMxdzMo3M0Hi/3sEU+cWnZpSni0O6/Yb/P0=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
+github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 h1:FtmdgXiUlNeRsoNMFlKLDt+S+6hbjVMEW6RGQ7aUf7c=
 github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5/go.mod h1:VvhXpOYNQvB+uIk2RvXzuaQtkQJzzIx6lSBe1xv7hi0=
 github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
 github.com/franela/goblin v0.0.0-20200105215937-c9ffbefa60db/go.mod h1:7dvUGVsVBjqR7JHJk0brhHOZYGmfBYOrK0ZhYMEtBr4=
@@ -167,7 +178,10 @@ github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMo
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
 github.com/fsnotify/fsnotify v1.5.1 h1:mZcQUHVQUQWoPXXtuf9yuEXKudkV2sx1E06UadKWpgI=
 github.com/fsnotify/fsnotify v1.5.1/go.mod h1:T3375wBYaZdLLcVNkcVbzGHY7f1l/uK5T5Ai1i3InKU=
+github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff h1:tY80oXqGNY4FhTFhk+o9oFHGINQ/+vhlm8HFzi6znCI=
 github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff/go.mod h1:x7DCsMOv1taUwEWCzT4cmDeAkigA5/QCwUodaVOe8Ww=
+github.com/georgysavva/scany v0.2.9 h1:Xt6rjYpHnMClTm/g+oZTnoSxUwiln5GqMNU+QeLNHQU=
+github.com/georgysavva/scany v0.2.9/go.mod h1:yeOeC1BdIdl6hOwy8uefL2WNSlseFzbhlG/frrh65SA=
 github.com/getkin/kin-openapi v0.53.0/go.mod h1:7Yn5whZr5kJi6t+kShccXS8ae1APpYTW6yheSwk8Yi4=
 github.com/getkin/kin-openapi v0.61.0/go.mod h1:7Yn5whZr5kJi6t+kShccXS8ae1APpYTW6yheSwk8Yi4=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
@@ -180,6 +194,7 @@ github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.10.0 h1:dXFJfIHVvUcpSgDOV+Ne6t7jXri8Tfv2uOLHUZ2XNuo=
 github.com/go-kit/kit v0.10.0/go.mod h1:xUsJbQ/Fp4kEt7AFgCuvyX4a71u8h9jB8tj/ORgOZ7o=
+github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0 h1:TrB8swr/68K7m9CcGut2g3UOihhbcbiMAYiuTXdEih4=
@@ -195,7 +210,10 @@ github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG
 github.com/go-stack/stack v1.8.0 h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE=
+github.com/gofrs/uuid v3.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
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+github.com/gofrs/uuid v4.0.0+incompatible h1:1SD/1F5pU8p29ybwgQSwpQk+mwdRrXCYuPhW6m+TnJw=
+github.com/gofrs/uuid v4.0.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/gogo/googleapis v1.1.0/go.mod h1:gf4bu3Q80BeJ6H1S1vYPm8/ELATdvryBaNFGgqEef3s=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
@@ -203,6 +221,7 @@ github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zV
 github.com/gogo/protobuf v1.3.1/go.mod h1:SlYgWuQ5SjCEi6WLHjHCa1yvBfUnHcTbrrZtXPKa29o=
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
 github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
+github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
 github.com/golang/geo v0.0.0-20190916061304-5b978397cfec/go.mod h1:QZ0nwyI2jOfgRAoBvP+ab5aRr7c9x7lhGEJrKvBwjWI=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
@@ -283,6 +302,7 @@ github.com/hashicorp/consul/api v1.3.0/go.mod h1:MmDNSzIMUjNpY/mQ398R4bk2FnqQLoP
 github.com/hashicorp/consul/sdk v0.1.1/go.mod h1:VKf9jXwCTEY1QZP2MOLRhb5i/I/ssyNV1vwHyQBF0x8=
 github.com/hashicorp/consul/sdk v0.3.0/go.mod h1:VKf9jXwCTEY1QZP2MOLRhb5i/I/ssyNV1vwHyQBF0x8=
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+github.com/hashicorp/go-bexpr v0.1.10 h1:9kuI5PFotCboP3dkDYFr/wi0gg0QVbSNz5oFRpxn4uE=
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@@ -312,6 +332,7 @@ github.com/holiman/uint256 v1.2.0 h1:gpSYcPLWGv4sG43I2mVLiDZCNDh/EpGjSk8tmtxitHM
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@@ -440,13 +550,16 @@ github.com/matryer/moq v0.0.0-20190312154309-6cfb0558e1bd/go.mod h1:9ELz6aaclSIG
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@@ -479,6 +592,7 @@ github.com/mitchellh/mapstructure v0.0.0-20160808181253-ca63d7c062ee/go.mod h1:F
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@@ -596,23 +710,35 @@ github.com/prometheus/tsdb v0.7.1 h1:YZcsG11NqnK4czYLrWd9mpEuAJIHVQLwdrleYfszMAA
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@@ -641,12 +767,15 @@ github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnIn
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@@ -665,6 +794,7 @@ github.com/tklauser/numcpus v0.2.2 h1:oyhllyrScuYI6g+h/zUvNXNp1wy7x8qQy3t/piefld
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@@ -675,8 +805,8 @@ github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPU
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@@ -686,6 +816,7 @@ github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
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@@ -722,21 +853,29 @@ golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnf
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+golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190411191339-88737f569e3a/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190909091759-094676da4a83/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20190911031432-227b76d455e7/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20191205180655-e7c4368fe9dd/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200115085410-6d4e4cb37c7d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200510223506-06a226fb4e37/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20201203163018-be400aefbc4c/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
 golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
 golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
 golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
 golang.org/x/crypto v0.0.0-20210506145944-38f3c27a63bf/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
-golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
+golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20211209193657-4570a0811e8b h1:QAqMVf3pSa6eeTsuklijukjXBlj7Es2QQplab+/RbQ4=
 golang.org/x/crypto v0.0.0-20211209193657-4570a0811e8b/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -822,6 +961,7 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -835,6 +975,7 @@ golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190219092855-153ac476189d/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -892,6 +1033,7 @@ golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxb
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20201208040808-7e3f01d25324/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba h1:O8mE0/t419eoIwhTFpKVkHiTs/Igowgfkj25AcZrtiE=
 golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180525024113-a5b4c53f6e8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -906,12 +1048,14 @@ golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3
 golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/tools v0.0.0-20190425163242-31fd60d6bfdc/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190506145303-2d16b83fe98c/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190606124116-d0a3d012864b/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190628153133-6cdbf07be9d0/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 golang.org/x/tools v0.0.0-20190816200558-6889da9d5479/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20190823170909-c4a336ef6a2f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20190911174233-4f2ddba30aff/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
@@ -935,6 +1079,8 @@ golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.8 h1:P1HhGGuLW4aAclzjtmJdf0mJOjVUZUzOTqkAkWL+l6w=
 golang.org/x/tools v0.1.8/go.mod h1:nABZi5QlRsZVlzPpHl034qft6wpY4eDcsTt5AaioBiU=
+golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -1007,6 +1153,7 @@ gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qS
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o=
+gopkg.in/inconshreveable/log15.v2 v2.0.0-20180818164646-67afb5ed74ec/go.mod h1:aPpfJ7XW+gOuirDoZ8gHhLh3kZ1B08FtV2bbmy7Jv3s=
 gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce h1:+JknDZhAj8YMt7GC73Ei8pv4MzjDUNPHgQWJdtMAaDU=
@@ -1015,6 +1162,7 @@ gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200619000410-60c24ae608a6/go.mod h1:uAJ
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/urfave/cli.v1 v1.20.0 h1:NdAVW6RYxDif9DhDHaAortIu956m2c0v+09AZBPTbE0=
 gopkg.in/urfave/cli.v1 v1.20.0/go.mod h1:vuBzUtMdQeixQj8LVd+/98pzhxNGQoyuPBlsXHOQNO0=
 gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=

pkg/snapshot/config.go

@@ -16,8 +16,10 @@
 package snapshot
 
 import (
+	"time"
+
+	"github.com/ethereum/go-ethereum/statediff/indexer/database/sql/postgres"
 	ethNode "github.com/ethereum/go-ethereum/statediff/indexer/node"
-	"github.com/ethereum/go-ethereum/statediff/indexer/postgres"
 	"github.com/spf13/viper"
 )
 
@@ -30,40 +32,56 @@ const (
 	LVL_DB_PATH       = "LVL_DB_PATH"
 )
 
+// SnapshotMode specifies the snapshot data output method
+type SnapshotMode string
+
+const (
+	PgSnapshot   SnapshotMode = "postgres"
+	FileSnapshot SnapshotMode = "file"
+)
+
 // Config contains params for both databases the service uses
 type Config struct {
-	DB  *DBConfig
+	Eth  *EthConfig
-	Eth *EthConfig
+	DB   *DBConfig
-}
+	File *FileConfig
-
-// DBConfig is config parameters for DB.
-type DBConfig struct {
-	Node       ethNode.Info
-	URI        string
-	ConnConfig postgres.ConnectionConfig
 }
 
 // EthConfig is config parameters for the chain.
 type EthConfig struct {
 	LevelDBPath   string
 	AncientDBPath string
+	NodeInfo      ethNode.Info
+}
+
+// DBConfig is config parameters for DB.
+type DBConfig struct {
+	URI        string
+	ConnConfig postgres.Config
+}
+
+type FileConfig struct {
+	OutputDir string
 }
 
 func NewConfig() *Config {
-	ret := &Config{&DBConfig{}, &EthConfig{}}
+	ret := &Config{
+		&EthConfig{},
+		&DBConfig{},
+		&FileConfig{},
+	}
 	ret.Init()
 	return ret
 }
 
 // Init Initialises config
 func (c *Config) Init() {
-	c.DB.dbInit()
 	viper.BindEnv("ethereum.nodeID", ETH_NODE_ID)
 	viper.BindEnv("ethereum.clientName", ETH_CLIENT_NAME)
 	viper.BindEnv("ethereum.genesisBlock", ETH_GENESIS_BLOCK)
 	viper.BindEnv("ethereum.networkID", ETH_NETWORK_ID)
 
-	c.DB.Node = ethNode.Info{
+	c.Eth.NodeInfo = ethNode.Info{
 		ID:           viper.GetString("ethereum.nodeID"),
 		ClientName:   viper.GetString("ethereum.clientName"),
 		GenesisBlock: viper.GetString("ethereum.genesisBlock"),
@@ -76,29 +94,38 @@ func (c *Config) Init() {
 
 	c.Eth.AncientDBPath = viper.GetString("leveldb.ancient")
 	c.Eth.LevelDBPath = viper.GetString("leveldb.path")
+
+	c.DB.Init()
+	c.File.Init()
 }
 
-func (c *DBConfig) dbInit() {
+func (c *DBConfig) Init() {
-	viper.BindEnv("database.name", postgres.DATABASE_NAME)
+	viper.BindEnv("database.name", "DATABASE_NAME")
-	viper.BindEnv("database.hostname", postgres.DATABASE_HOSTNAME)
+	viper.BindEnv("database.hostname", "DATABASE_HOSTNAME")
-	viper.BindEnv("database.port", postgres.DATABASE_PORT)
+	viper.BindEnv("database.port", "DATABASE_PORT")
-	viper.BindEnv("database.user", postgres.DATABASE_USER)
+	viper.BindEnv("database.user", "DATABASE_USER")
-	viper.BindEnv("database.password", postgres.DATABASE_PASSWORD)
+	viper.BindEnv("database.password", "DATABASE_PASSWORD")
-	viper.BindEnv("database.maxIdle", postgres.DATABASE_MAX_IDLE_CONNECTIONS)
+	viper.BindEnv("database.maxIdle", "DATABASE_MAX_IDLE_CONNECTIONS")
-	viper.BindEnv("database.maxOpen", postgres.DATABASE_MAX_OPEN_CONNECTIONS)
+	viper.BindEnv("database.maxOpen", "DATABASE_MAX_OPEN_CONNECTIONS")
-	viper.BindEnv("database.maxLifetime", postgres.DATABASE_MAX_CONN_LIFETIME)
+	viper.BindEnv("database.maxLifetime", "DATABASE_MAX_CONN_LIFETIME")
 
-	dbParams := postgres.ConnectionParams{}
+	dbParams := postgres.Config{}
 	// DB params
-	dbParams.Name = viper.GetString("database.name")
+	dbParams.DatabaseName = viper.GetString("database.name")
 	dbParams.Hostname = viper.GetString("database.hostname")
 	dbParams.Port = viper.GetInt("database.port")
-	dbParams.User = viper.GetString("database.user")
+	dbParams.Username = viper.GetString("database.user")
 	dbParams.Password = viper.GetString("database.password")
-
-	c.URI = postgres.DbConnectionString(dbParams)
 	// Connection config
-	c.ConnConfig.MaxIdle = viper.GetInt("database.maxIdle")
+	dbParams.MaxIdle = viper.GetInt("database.maxIdle")
-	c.ConnConfig.MaxOpen = viper.GetInt("database.maxOpen")
+	dbParams.MaxConns = viper.GetInt("database.maxOpen")
-	c.ConnConfig.MaxLifetime = viper.GetInt("database.maxLifetime")
+	dbParams.MaxConnLifetime = time.Duration(viper.GetInt("database.maxLifetime")) * time.Second
+
+	c.ConnConfig = dbParams
+	c.URI = dbParams.DbConnectionString()
+}
+
+func (c *FileConfig) Init() {
+	viper.BindEnv("file.outputDir", "FILE_OUTPUT_DIR")
+	c.OutputDir = viper.GetString("file.outputDir")
 }

pkg/snapshot/file/publisher.go

@@ -0,0 +1,293 @@
+// Copyright © 2020 Vulcanize, Inc
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+package publisher
+
+import (
+	"encoding/csv"
+	"fmt"
+	"os"
+	"path/filepath"
+	"sync/atomic"
+	"time"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ipfs/go-cid"
+	blockstore "github.com/ipfs/go-ipfs-blockstore"
+	dshelp "github.com/ipfs/go-ipfs-ds-help"
+	"github.com/multiformats/go-multihash"
+	"github.com/sirupsen/logrus"
+
+	"github.com/ethereum/go-ethereum/statediff/indexer/ipld"
+	nodeinfo "github.com/ethereum/go-ethereum/statediff/indexer/node"
+	"github.com/ethereum/go-ethereum/statediff/indexer/shared"
+	snapt "github.com/vulcanize/eth-pg-ipfs-state-snapshot/pkg/types"
+)
+
+var _ snapt.Publisher = (*publisher)(nil)
+
+var (
+	// tables written once per block
+	perBlockTables = []*snapt.Table{
+		&snapt.TableIPLDBlock,
+		&snapt.TableNodeInfo,
+		&snapt.TableHeader,
+	}
+	// tables written during state iteration
+	perNodeTables = []*snapt.Table{
+		&snapt.TableIPLDBlock,
+		&snapt.TableStateNode,
+		&snapt.TableStorageNode,
+	}
+)
+
+const logInterval = 1 * time.Minute
+
+type publisher struct {
+	dir     string // dir containing output files
+	writers fileWriters
+
+	nodeInfo nodeinfo.Info
+
+	startTime          time.Time
+	currBatchSize      uint
+	stateNodeCounter   uint64
+	storageNodeCounter uint64
+	codeNodeCounter    uint64
+	txCounter          uint32
+}
+
+type fileWriter struct {
+	*csv.Writer
+}
+
+// fileWriters wraps the file writers for each output table
+type fileWriters map[string]fileWriter
+
+type fileTx struct{ fileWriters }
+
+func (tx fileWriters) Commit() error {
+	for _, w := range tx {
+		w.Flush()
+		if err := w.Error(); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+func (fileWriters) Rollback() error { return nil } // TODO: delete the file?
+
+func newFileWriter(path string) (ret fileWriter, err error) {
+	file, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
+	if err != nil {
+		return
+	}
+	ret = fileWriter{csv.NewWriter(file)}
+	return
+}
+
+func (tx fileWriters) write(tbl *snapt.Table, args ...interface{}) error {
+	row := tbl.ToCsvRow(args...)
+	return tx[tbl.Name].Write(row)
+}
+
+func makeFileWriters(dir string, tables []*snapt.Table) (fileWriters, error) {
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return nil, err
+	}
+	writers := fileWriters{}
+	for _, tbl := range tables {
+		w, err := newFileWriter(TableFile(dir, tbl.Name))
+		if err != nil {
+			return nil, err
+		}
+		writers[tbl.Name] = w
+	}
+	return writers, nil
+}
+
+// NewPublisher creates a publisher which writes to per-table CSV files which can be imported
+// with the Postgres COPY command.
+// The output directory will be created if it does not exist.
+func NewPublisher(path string, node nodeinfo.Info) (*publisher, error) {
+	if err := os.MkdirAll(path, 0755); err != nil {
+		return nil, err
+	}
+	writers, err := makeFileWriters(path, perBlockTables)
+	if err != nil {
+		return nil, err
+	}
+	pub := &publisher{
+		writers:   writers,
+		dir:       path,
+		nodeInfo:  node,
+		startTime: time.Now(),
+	}
+	go pub.logNodeCounters()
+	return pub, nil
+}
+
+func TableFile(dir, name string) string { return filepath.Join(dir, name+".csv") }
+
+func (p *publisher) txDir(index uint32) string {
+	return filepath.Join(p.dir, fmt.Sprintf("%010d", index))
+}
+
+func (p *publisher) BeginTx() (snapt.Tx, error) {
+	index := atomic.LoadUint32(&p.txCounter)
+	dir := p.txDir(index)
+	writers, err := makeFileWriters(dir, perNodeTables)
+	if err != nil {
+		return nil, err
+	}
+
+	atomic.AddUint32(&p.txCounter, 1)
+	return fileTx{writers}, nil
+}
+
+// PublishRaw derives a cid from raw bytes and provided codec and multihash type, and writes it to the db tx
+// returns the CID and blockstore prefixed multihash key
+func (tx fileWriters) publishRaw(codec uint64, raw []byte) (cid, prefixedKey string, err error) {
+	c, err := ipld.RawdataToCid(codec, raw, multihash.KECCAK_256)
+	if err != nil {
+		return
+	}
+	cid = c.String()
+	prefixedKey, err = tx.publishIPLD(c, raw)
+	return
+}
+
+func (tx fileWriters) publishIPLD(c cid.Cid, raw []byte) (string, error) {
+	dbKey := dshelp.MultihashToDsKey(c.Hash())
+	prefixedKey := blockstore.BlockPrefix.String() + dbKey.String()
+	return prefixedKey, tx.write(&snapt.TableIPLDBlock, prefixedKey, raw)
+}
+
+// PublishHeader writes the header to the ipfs backing pg datastore and adds secondary
+// indexes in the header_cids table
+func (p *publisher) PublishHeader(header *types.Header) error {
+	headerNode, err := ipld.NewEthHeader(header)
+	if err != nil {
+		return err
+	}
+	if _, err = p.writers.publishIPLD(headerNode.Cid(), headerNode.RawData()); err != nil {
+		return err
+	}
+
+	mhKey := shared.MultihashKeyFromCID(headerNode.Cid())
+	err = p.writers.write(&snapt.TableNodeInfo, p.nodeInfo.GenesisBlock, p.nodeInfo.NetworkID, p.nodeInfo.ID,
+		p.nodeInfo.ClientName, p.nodeInfo.ChainID)
+	if err != nil {
+		return err
+	}
+	err = p.writers.write(&snapt.TableHeader, header.Number.String(), header.Hash().Hex(), header.ParentHash.Hex(),
+		headerNode.Cid().String(), 0, p.nodeInfo.ID, 0, header.Root.Hex(), header.TxHash.Hex(),
+		header.ReceiptHash.Hex(), header.UncleHash.Hex(), header.Bloom.Bytes(), header.Time, mhKey,
+		0, header.Coinbase.String())
+	if err != nil {
+		return err
+	}
+	return p.writers.Commit()
+}
+
+// PublishStateNode writes the state node to the ipfs backing datastore and adds secondary indexes
+// in the state_cids table
+func (p *publisher) PublishStateNode(node *snapt.Node, headerID string, snapTx snapt.Tx) error {
+	var stateKey string
+	if !snapt.IsNullHash(node.Key) {
+		stateKey = node.Key.Hex()
+	}
+
+	tx := snapTx.(fileTx)
+	stateCIDStr, mhKey, err := tx.publishRaw(ipld.MEthStateTrie, node.Value)
+	if err != nil {
+		return err
+	}
+
+	err = tx.write(&snapt.TableStateNode, headerID, stateKey, stateCIDStr, node.Path,
+		node.NodeType, false, mhKey)
+	if err != nil {
+		return err
+	}
+	// increment state node counter.
+	atomic.AddUint64(&p.stateNodeCounter, 1)
+	// increment current batch size counter
+	p.currBatchSize += 2
+	return err
+}
+
+// PublishStorageNode writes the storage node to the ipfs backing pg datastore and adds secondary
+// indexes in the storage_cids table
+func (p *publisher) PublishStorageNode(node *snapt.Node, headerID string, statePath []byte, snapTx snapt.Tx) error {
+	var storageKey string
+	if !snapt.IsNullHash(node.Key) {
+		storageKey = node.Key.Hex()
+	}
+
+	tx := snapTx.(fileTx)
+	storageCIDStr, mhKey, err := tx.publishRaw(ipld.MEthStorageTrie, node.Value)
+	if err != nil {
+		return err
+	}
+
+	err = tx.write(&snapt.TableStorageNode, headerID, statePath, storageKey, storageCIDStr, node.Path,
+		node.NodeType, false, mhKey)
+	if err != nil {
+		return err
+	}
+	// increment storage node counter.
+	atomic.AddUint64(&p.storageNodeCounter, 1)
+	// increment current batch size counter
+	p.currBatchSize += 2
+	return nil
+}
+
+// PublishCode writes code to the ipfs backing pg datastore
+func (p *publisher) PublishCode(codeHash common.Hash, codeBytes []byte, snapTx snapt.Tx) error {
+	// no codec for code, doesn't matter though since blockstore key is multihash-derived
+	mhKey, err := shared.MultihashKeyFromKeccak256(codeHash)
+	if err != nil {
+		return fmt.Errorf("error deriving multihash key from codehash: %v", err)
+	}
+
+	tx := snapTx.(fileTx)
+	if err = tx.write(&snapt.TableIPLDBlock, mhKey, codeBytes); err != nil {
+		return fmt.Errorf("error publishing code IPLD: %v", err)
+	}
+	// increment code node counter.
+	atomic.AddUint64(&p.codeNodeCounter, 1)
+	p.currBatchSize++
+	return nil
+}
+
+func (p *publisher) PrepareTxForBatch(tx snapt.Tx, maxBatchSize uint) (snapt.Tx, error) {
+	return tx, nil
+}
+
+// logNodeCounters periodically logs the number of node processed.
+func (p *publisher) logNodeCounters() {
+	t := time.NewTicker(logInterval)
+	for range t.C {
+		p.printNodeCounters()
+	}
+}
+
+func (p *publisher) printNodeCounters() {
+	logrus.Infof("runtime: %s", time.Now().Sub(p.startTime).String())
+	logrus.Infof("processed state nodes: %d", atomic.LoadUint64(&p.stateNodeCounter))
+	logrus.Infof("processed storage nodes: %d", atomic.LoadUint64(&p.storageNodeCounter))
+	logrus.Infof("processed code nodes: %d", atomic.LoadUint64(&p.codeNodeCounter))
+}

pkg/snapshot/file/publisher_test.go

@@ -0,0 +1,132 @@
+package publisher
+
+import (
+	"context"
+	"encoding/csv"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/statediff/indexer/ipld"
+	"github.com/jackc/pgx/v4"
+
+	fixt "github.com/vulcanize/eth-pg-ipfs-state-snapshot/fixture"
+	snapt "github.com/vulcanize/eth-pg-ipfs-state-snapshot/pkg/types"
+	"github.com/vulcanize/eth-pg-ipfs-state-snapshot/test"
+)
+
+var (
+	pgConfig = test.DefaultPgConfig
+	nodeInfo = test.DefaultNodeInfo
+	// tables ordered according to fkey depedencies
+	allTables = []*snapt.Table{
+		&snapt.TableIPLDBlock,
+		&snapt.TableNodeInfo,
+		&snapt.TableHeader,
+		&snapt.TableStateNode,
+		&snapt.TableStorageNode,
+	}
+)
+
+func writeFiles(t *testing.T, dir string) *publisher {
+	pub, err := NewPublisher(dir, nodeInfo)
+	test.NoError(t, err)
+	test.NoError(t, pub.PublishHeader(&fixt.Header1))
+	tx, err := pub.BeginTx()
+	test.NoError(t, err)
+
+	headerID := fixt.Header1.Hash().String()
+	test.NoError(t, pub.PublishStateNode(&fixt.StateNode1, headerID, tx))
+
+	test.NoError(t, tx.Commit())
+	return pub
+}
+
+// verify that we can parse the csvs
+// TODO check actual data
+func verifyFileData(t *testing.T, path string, tbl *snapt.Table) {
+	file, err := os.Open(path)
+	test.NoError(t, err)
+	r := csv.NewReader(file)
+	test.NoError(t, err)
+	r.FieldsPerRecord = len(tbl.Columns)
+
+	for {
+		_, err := r.Read()
+		if err == io.EOF {
+			break
+		}
+		test.NoError(t, err)
+	}
+}
+
+func TestWriting(t *testing.T) {
+	dir := t.TempDir()
+	// tempdir like /tmp/TempFoo/001/, TempFoo defaults to 0700
+	test.NoError(t, os.Chmod(filepath.Dir(dir), 0755))
+
+	pub := writeFiles(t, dir)
+
+	for _, tbl := range perBlockTables {
+		verifyFileData(t, TableFile(pub.dir, tbl.Name), tbl)
+	}
+	for i := uint32(0); i < pub.txCounter; i++ {
+		for _, tbl := range perNodeTables {
+			verifyFileData(t, TableFile(pub.txDir(i), tbl.Name), tbl)
+		}
+	}
+}
+
+// Note: DB user requires role membership "pg_read_server_files"
+func TestPgCopy(t *testing.T) {
+	test.NeedsDB(t)
+
+	dir := t.TempDir()
+	test.NoError(t, os.Chmod(filepath.Dir(dir), 0755))
+	pub := writeFiles(t, dir)
+
+	ctx := context.Background()
+	conn, err := pgx.Connect(ctx, pgConfig.DbConnectionString())
+	test.NoError(t, err)
+
+	// clear existing test data
+	pgDeleteTable := `DELETE FROM %s`
+	for _, tbl := range allTables {
+		_, err = conn.Exec(ctx, fmt.Sprintf(pgDeleteTable, tbl.Name))
+		test.NoError(t, err)
+	}
+
+	// copy from files
+	pgCopyStatement := `COPY %s FROM '%s' CSV`
+	for _, tbl := range perBlockTables {
+		stm := fmt.Sprintf(pgCopyStatement, tbl.Name, TableFile(pub.dir, tbl.Name))
+		_, err = conn.Exec(ctx, stm)
+		test.NoError(t, err)
+	}
+	for i := uint32(0); i < pub.txCounter; i++ {
+		for _, tbl := range perNodeTables {
+			stm := fmt.Sprintf(pgCopyStatement, tbl.Name, TableFile(pub.txDir(i), tbl.Name))
+			_, err = conn.Exec(ctx, stm)
+			test.NoError(t, err)
+		}
+	}
+
+	// check header was successfully committed
+	pgQueryHeader := `SELECT cid, block_hash
+					  FROM eth.header_cids
+				      WHERE block_number = $1`
+	type res struct {
+		CID       string
+		BlockHash string
+	}
+	var header res
+	err = conn.QueryRow(ctx, pgQueryHeader, fixt.Header1.Number.Uint64()).Scan(
+		&header.CID, &header.BlockHash)
+	test.NoError(t, err)
+
+	headerNode, err := ipld.NewEthHeader(&fixt.Header1)
+	test.ExpectEqual(t, headerNode.Cid().String(), header.CID)
+	test.ExpectEqual(t, fixt.Header1.Hash().String(), header.BlockHash)
+}

pkg/snapshot/mock/publisher.go

@@ -1,64 +0,0 @@
-package mock
-
-import (
-	"fmt"
-	"strings"
-	"testing"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/jmoiron/sqlx"
-
-	"github.com/golang/mock/gomock"
-
-	mocks "github.com/vulcanize/eth-pg-ipfs-state-snapshot/mocks/snapshot"
-	snapt "github.com/vulcanize/eth-pg-ipfs-state-snapshot/pkg/types"
-)
-
-type MockPublisher struct {
-	*mocks.MockPublisher
-}
-
-func NewMockPublisher(t *testing.T) *MockPublisher {
-	ctl := gomock.NewController(t)
-	return &MockPublisher{mocks.NewMockPublisher(ctl)}
-}
-
-func dump(funcname string, xs ...interface{}) {
-	if true {
-		return
-	}
-	fmt.Printf(">> %s", funcname)
-	fmt.Printf(strings.Repeat(" %+v", len(xs))+"\n", xs...)
-}
-
-func (p *MockPublisher) PublishHeader(header *types.Header) (int64, error) {
-	// fmt.Printf("PublishHeader %+v\n", header)
-	dump("PublishHeader", header)
-	return p.MockPublisher.PublishHeader(header)
-}
-func (p *MockPublisher) PublishStateNode(node *snapt.Node, headerID int64, tx *sqlx.Tx) (int64, error) {
-	dump("PublishStateNode", node, headerID)
-	return p.MockPublisher.PublishStateNode(node, headerID, tx)
-
-}
-func (p *MockPublisher) PublishStorageNode(node *snapt.Node, stateID int64, tx *sqlx.Tx) error {
-	dump("PublishStorageNode", node, stateID)
-	return p.MockPublisher.PublishStorageNode(node, stateID, tx)
-}
-func (p *MockPublisher) PublishCode(codeHash common.Hash, codeBytes []byte, tx *sqlx.Tx) error {
-	dump("PublishCode", codeHash, codeBytes)
-	return p.MockPublisher.PublishCode(codeHash, codeBytes, tx)
-}
-func (p *MockPublisher) BeginTx() (*sqlx.Tx, error) {
-	dump("BeginTx")
-	return p.MockPublisher.BeginTx()
-}
-func (p *MockPublisher) CommitTx(tx *sqlx.Tx) error {
-	dump("CommitTx", tx)
-	return p.MockPublisher.CommitTx(tx)
-}
-func (p *MockPublisher) PrepareTxForBatch(tx *sqlx.Tx, batchSize uint) (*sqlx.Tx, error) {
-	dump("PrepareTxForBatch", tx, batchSize)
-	return p.MockPublisher.PrepareTxForBatch(tx, batchSize)
-}

pkg/snapshot/pg/publisher.go

@@ -13,26 +13,31 @@
 // You should have received a copy of the GNU Affero General Public License
 // along with this program. If not, see <http://www.gnu.org/licenses/>.
 
-package snapshot
+package pg
 
 import (
-	"bytes"
+	"context"
 	"fmt"
 	"sync/atomic"
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/jmoiron/sqlx"
+	"github.com/ipfs/go-cid"
+	blockstore "github.com/ipfs/go-ipfs-blockstore"
+	dshelp "github.com/ipfs/go-ipfs-ds-help"
 	"github.com/multiformats/go-multihash"
 	"github.com/sirupsen/logrus"
 
-	"github.com/ethereum/go-ethereum/statediff/indexer/ipfs/ipld"
+	"github.com/ethereum/go-ethereum/statediff/indexer/database/sql"
-	"github.com/ethereum/go-ethereum/statediff/indexer/postgres"
+	"github.com/ethereum/go-ethereum/statediff/indexer/database/sql/postgres"
+	"github.com/ethereum/go-ethereum/statediff/indexer/ipld"
 	"github.com/ethereum/go-ethereum/statediff/indexer/shared"
 	snapt "github.com/vulcanize/eth-pg-ipfs-state-snapshot/pkg/types"
 )
 
+var _ snapt.Publisher = (*publisher)(nil)
+
 const logInterval = 1 * time.Minute
 
 // Publisher is wrapper around DB.
@@ -48,128 +53,146 @@ type publisher struct {
 // NewPublisher creates Publisher
 func NewPublisher(db *postgres.DB) *publisher {
 	return &publisher{
-		db:            db,
+		db:        db,
-		currBatchSize: 0,
+		startTime: time.Now(),
-		startTime:     time.Now(),
 	}
 }
 
-func (p *publisher) BeginTx() (*sqlx.Tx, error) {
+type pubTx struct {
-	tx, err := p.db.Beginx()
+	sql.Tx
+	callback func()
+}
+
+func (tx pubTx) Rollback() error { return tx.Tx.Rollback(context.Background()) }
+func (tx pubTx) Commit() error {
+	if tx.callback != nil {
+		defer tx.callback()
+	}
+	return tx.Tx.Commit(context.Background())
+}
+func (tx pubTx) Exec(sql string, args ...interface{}) (sql.Result, error) {
+	return tx.Tx.Exec(context.Background(), sql, args...)
+}
+
+func (p *publisher) BeginTx() (snapt.Tx, error) {
+	tx, err := p.db.Begin(context.Background())
 	if err != nil {
 		return nil, err
 	}
 	go p.logNodeCounters()
-	return tx, nil
+	return pubTx{tx, func() {
+		logrus.Info("----- final counts -----")
+		p.printNodeCounters()
+	}}, nil
 }
 
-func (p *publisher) CommitTx(tx *sqlx.Tx) error {
+// PublishRaw derives a cid from raw bytes and provided codec and multihash type, and writes it to the db tx
-	logrus.Info("----- final counts -----")
+// returns the CID and blockstore prefixed multihash key
-	p.printNodeCounters()
+func (tx pubTx) publishRaw(codec uint64, raw []byte) (cid, prefixedKey string, err error) {
-	return tx.Commit()
+	c, err := ipld.RawdataToCid(codec, raw, multihash.KECCAK_256)
+	if err != nil {
+		return
+	}
+	cid = c.String()
+	prefixedKey, err = tx.publishIPLD(c, raw)
+	return
+}
+
+func (tx pubTx) publishIPLD(c cid.Cid, raw []byte) (string, error) {
+	dbKey := dshelp.MultihashToDsKey(c.Hash())
+	prefixedKey := blockstore.BlockPrefix.String() + dbKey.String()
+	_, err := tx.Exec(snapt.TableIPLDBlock.ToInsertStatement(), prefixedKey, raw)
+	return prefixedKey, err
 }
 
 // PublishHeader writes the header to the ipfs backing pg datastore and adds secondary indexes in the header_cids table
-func (p *publisher) PublishHeader(header *types.Header) (int64, error) {
+func (p *publisher) PublishHeader(header *types.Header) (err error) {
 	headerNode, err := ipld.NewEthHeader(header)
 	if err != nil {
-		return 0, err
+		return err
 	}
 
-	tx, err := p.db.Beginx()
+	snapTx, err := p.db.Begin(context.Background())
 	if err != nil {
-		return 0, err
+		return err
+	}
+	tx := pubTx{snapTx, nil}
+	defer func() { err = snapt.CommitOrRollback(tx, err) }()
+
+	if _, err = tx.publishIPLD(headerNode.Cid(), headerNode.RawData()); err != nil {
+		return err
 	}
 
-	defer func() {
+	mhKey := shared.MultihashKeyFromCID(headerNode.Cid())
-		if p := recover(); p != nil {
+	_, err = tx.Exec(snapt.TableHeader.ToInsertStatement(), header.Number.Uint64(), header.Hash().Hex(),
-			shared.Rollback(tx)
+		header.ParentHash.Hex(), headerNode.Cid().String(), "0", p.db.NodeID(), "0",
-			panic(p)
+		header.Root.Hex(), header.TxHash.Hex(), header.ReceiptHash.Hex(), header.UncleHash.Hex(),
-		} else if err != nil {
+		header.Bloom.Bytes(), header.Time, mhKey, 0, header.Coinbase.String())
-			shared.Rollback(tx)
+	return err
-		} else {
-			err = tx.Commit()
-		}
-	}()
-
-	if err = shared.PublishIPLD(tx, headerNode); err != nil {
-		return 0, err
-	}
-
-	mhKey, _ := shared.MultihashKeyFromCIDString(headerNode.Cid().String())
-	var headerID int64
-	err = tx.QueryRowx(`INSERT INTO eth.header_cids (block_number, block_hash, parent_hash, cid, td, node_id, reward, state_root, tx_root, receipt_root, uncle_root, bloom, timestamp, mh_key, times_validated)
- 								VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15)
- 								ON CONFLICT (block_number, block_hash) DO UPDATE SET block_number = header_cids.block_number
- 								RETURNING id`,
-		header.Number.Uint64(), header.Hash().Hex(), header.ParentHash.Hex(), headerNode.Cid().String(), "0", p.db.NodeID, "0", header.Root.Hex(), header.TxHash.Hex(),
-		header.ReceiptHash.Hex(), header.UncleHash.Hex(), header.Bloom.Bytes(), header.Time, mhKey, 0).Scan(&headerID)
-
-	return headerID, err
 }
 
 // PublishStateNode writes the state node to the ipfs backing datastore and adds secondary indexes in the state_cids table
-func (p *publisher) PublishStateNode(node *snapt.Node, headerID int64, tx *sqlx.Tx) (int64, error) {
+func (p *publisher) PublishStateNode(node *snapt.Node, headerID string, snapTx snapt.Tx) error {
-	var stateID int64
 	var stateKey string
-	if !bytes.Equal(node.Key.Bytes(), nullHash.Bytes()) {
+	if !snapt.IsNullHash(node.Key) {
 		stateKey = node.Key.Hex()
 	}
 
-	stateCIDStr, mhKey, err := shared.PublishRaw(tx, ipld.MEthStateTrie, multihash.KECCAK_256, node.Value)
+	tx := snapTx.(pubTx)
+	stateCIDStr, mhKey, err := tx.publishRaw(ipld.MEthStateTrie, node.Value)
 	if err != nil {
-		return 0, err
+		return err
 	}
 
-	err = tx.QueryRowx(`INSERT INTO eth.state_cids (header_id, state_leaf_key, cid, state_path, node_type, diff, mh_key) VALUES ($1, $2, $3, $4, $5, $6, $7)
+	_, err = tx.Exec(snapt.TableStateNode.ToInsertStatement(),
- 									ON CONFLICT (header_id, state_path) DO UPDATE SET (state_leaf_key, cid, node_type, diff, mh_key) = ($2, $3, $5, $6, $7)
+		headerID, stateKey, stateCIDStr, node.Path, node.NodeType, false, mhKey)
- 									RETURNING id`,
+	if err != nil {
-		headerID, stateKey, stateCIDStr, node.Path, node.NodeType, false, mhKey).Scan(&stateID)
+		return err
-
+	}
 	// increment state node counter.
 	atomic.AddUint64(&p.stateNodeCounter, 1)
 
 	// increment current batch size counter
 	p.currBatchSize += 2
-	return stateID, err
+	return err
 }
 
 // PublishStorageNode writes the storage node to the ipfs backing pg datastore and adds secondary indexes in the storage_cids table
-func (p *publisher) PublishStorageNode(node *snapt.Node, stateID int64, tx *sqlx.Tx) error {
+func (p *publisher) PublishStorageNode(node *snapt.Node, headerID string, statePath []byte, snapTx snapt.Tx) error {
 	var storageKey string
-	if !bytes.Equal(node.Key.Bytes(), nullHash.Bytes()) {
+	if !snapt.IsNullHash(node.Key) {
 		storageKey = node.Key.Hex()
 	}
 
-	storageCIDStr, mhKey, err := shared.PublishRaw(tx, ipld.MEthStorageTrie, multihash.KECCAK_256, node.Value)
+	tx := snapTx.(pubTx)
+	storageCIDStr, mhKey, err := tx.publishRaw(ipld.MEthStorageTrie, node.Value)
 	if err != nil {
 		return err
 	}
 
-	_, err = tx.Exec(`INSERT INTO eth.storage_cids (state_id, storage_leaf_key, cid, storage_path, node_type, diff, mh_key) VALUES ($1, $2, $3, $4, $5, $6, $7)
+	_, err = tx.Exec(snapt.TableStorageNode.ToInsertStatement(),
-                              	ON CONFLICT (state_id, storage_path) DO UPDATE SET (storage_leaf_key, cid, node_type, diff, mh_key) = ($2, $3, $5, $6, $7)`,
+		headerID, statePath, storageKey, storageCIDStr, node.Path, node.NodeType, false, mhKey)
-		stateID, storageKey, storageCIDStr, node.Path, node.NodeType, false, mhKey)
 	if err != nil {
 		return err
 	}
-
 	// increment storage node counter.
 	atomic.AddUint64(&p.storageNodeCounter, 1)
 
 	// increment current batch size counter
 	p.currBatchSize += 2
-	return nil
+	return err
 }
 
 // PublishCode writes code to the ipfs backing pg datastore
-func (p *publisher) PublishCode(codeHash common.Hash, codeBytes []byte, tx *sqlx.Tx) error {
+func (p *publisher) PublishCode(codeHash common.Hash, codeBytes []byte, snapTx snapt.Tx) error {
 	// no codec for code, doesn't matter though since blockstore key is multihash-derived
 	mhKey, err := shared.MultihashKeyFromKeccak256(codeHash)
 	if err != nil {
 		return fmt.Errorf("error deriving multihash key from codehash: %v", err)
 	}
 
-	if err = shared.PublishDirect(tx, mhKey, codeBytes); err != nil {
+	tx := snapTx.(pubTx)
+	if _, err = tx.Exec(snapt.TableIPLDBlock.ToInsertStatement(), mhKey, codeBytes); err != nil {
 		return fmt.Errorf("error publishing code IPLD: %v", err)
 	}
 
@@ -180,7 +203,7 @@ func (p *publisher) PublishCode(codeHash common.Hash, codeBytes []byte, tx *sqlx
 	return nil
 }
 
-func (p *publisher) PrepareTxForBatch(tx *sqlx.Tx, maxBatchSize uint) (*sqlx.Tx, error) {
+func (p *publisher) PrepareTxForBatch(tx snapt.Tx, maxBatchSize uint) (snapt.Tx, error) {
 	var err error
 	// maximum batch size reached, commit the current transaction and begin a new transaction.
 	if maxBatchSize <= p.currBatchSize {
@@ -188,7 +211,8 @@ func (p *publisher) PrepareTxForBatch(tx *sqlx.Tx, maxBatchSize uint) (*sqlx.Tx,
 			return nil, err
 		}
 
-		tx, err = p.db.Beginx()
+		snapTx, err := p.db.Begin(context.Background())
+		tx = pubTx{Tx: snapTx}
 		if err != nil {
 			return nil, err
 		}

pkg/snapshot/pg/publisher_test.go

@@ -0,0 +1,78 @@
+package pg
+
+import (
+	"context"
+	"fmt"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/statediff/indexer/database/sql/postgres"
+	"github.com/ethereum/go-ethereum/statediff/indexer/ipld"
+	"github.com/jackc/pgx/v4"
+
+	fixt "github.com/vulcanize/eth-pg-ipfs-state-snapshot/fixture"
+	snapt "github.com/vulcanize/eth-pg-ipfs-state-snapshot/pkg/types"
+	"github.com/vulcanize/eth-pg-ipfs-state-snapshot/test"
+)
+
+var (
+	pgConfig = test.DefaultPgConfig
+	nodeInfo = test.DefaultNodeInfo
+	// tables ordered according to fkey depedencies
+	allTables = []*snapt.Table{
+		&snapt.TableIPLDBlock,
+		&snapt.TableNodeInfo,
+		&snapt.TableHeader,
+		&snapt.TableStateNode,
+		&snapt.TableStorageNode,
+	}
+)
+
+func writeData(t *testing.T) *publisher {
+	driver, err := postgres.NewPGXDriver(context.Background(), pgConfig, nodeInfo)
+	test.NoError(t, err)
+	pub := NewPublisher(postgres.NewPostgresDB(driver))
+	test.NoError(t, pub.PublishHeader(&fixt.Header1))
+	tx, err := pub.BeginTx()
+	test.NoError(t, err)
+
+	headerID := fixt.Header1.Hash().String()
+	test.NoError(t, pub.PublishStateNode(&fixt.StateNode1, headerID, tx))
+
+	test.NoError(t, tx.Commit())
+	return pub
+}
+
+// Note: DB user requires role membership "pg_read_server_files"
+func TestBasic(t *testing.T) {
+	test.NeedsDB(t)
+
+	ctx := context.Background()
+	conn, err := pgx.Connect(ctx, pgConfig.DbConnectionString())
+	test.NoError(t, err)
+
+	// clear existing test data
+	pgDeleteTable := `DELETE FROM %s`
+	for _, tbl := range allTables {
+		_, err = conn.Exec(ctx, fmt.Sprintf(pgDeleteTable, tbl.Name))
+		test.NoError(t, err)
+	}
+
+	_ = writeData(t)
+
+	// check header was successfully committed
+	pgQueryHeader := `SELECT cid, block_hash
+					  FROM eth.header_cids
+				      WHERE block_number = $1`
+	type res struct {
+		CID       string
+		BlockHash string
+	}
+	var header res
+	err = conn.QueryRow(ctx, pgQueryHeader, fixt.Header1.Number.Uint64()).Scan(
+		&header.CID, &header.BlockHash)
+	test.NoError(t, err)
+
+	headerNode, err := ipld.NewEthHeader(&fixt.Header1)
+	test.ExpectEqual(t, headerNode.Cid().String(), header.CID)
+	test.ExpectEqual(t, fixt.Header1.Hash().String(), header.BlockHash)
+}

pkg/snapshot/service.go

@@ -28,10 +28,7 @@ import (
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/rlp"
-	"github.com/ethereum/go-ethereum/statediff/indexer/postgres"
-	"github.com/ethereum/go-ethereum/statediff/indexer/shared"
 	"github.com/ethereum/go-ethereum/trie"
-	"github.com/jmoiron/sqlx"
 	"github.com/sirupsen/logrus"
 
 	. "github.com/vulcanize/eth-pg-ipfs-state-snapshot/pkg/types"
@@ -39,7 +36,6 @@ import (
 )
 
 var (
-	nullHash          = common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000")
 	emptyNode, _      = rlp.EncodeToBytes([]byte{})
 	emptyCodeHash     = crypto.Keccak256([]byte{})
 	emptyContractRoot = crypto.Keccak256Hash(emptyNode)
@@ -56,14 +52,6 @@ type Service struct {
 	maxBatchSize  uint
 }
 
-func NewPostgresDB(con *DBConfig) (*postgres.DB, error) {
-	pgDB, err := postgres.NewDB(con.URI, con.ConnConfig, con.Node)
-	if err != nil {
-		return nil, err
-	}
-	return pgDB, nil
-}
-
 func NewLevelDB(con *EthConfig) (ethdb.Database, error) {
 	return rawdb.NewLevelDBDatabaseWithFreezer(
 		con.LevelDBPath, 1024, 256, con.AncientDBPath, "eth-pg-ipfs-state-snapshot", false,
@@ -97,7 +85,7 @@ func (s *Service) CreateSnapshot(params SnapshotParams) error {
 
 	logrus.Infof("head hash: %s head height: %d", hash.Hex(), params.Height)
 
-	headerID, err := s.ipfsPublisher.PublishHeader(header)
+	err := s.ipfsPublisher.PublishHeader(header)
 	if err != nil {
 		return err
 	}
@@ -106,6 +94,8 @@ func (s *Service) CreateSnapshot(params SnapshotParams) error {
 	if err != nil {
 		return err
 	}
+	headerID := header.Hash().String()
+
 	if params.Workers > 0 {
 		return s.createSnapshotAsync(t, headerID, params.Workers)
 	} else {
@@ -135,7 +125,7 @@ func resolveNode(it trie.NodeIterator, trieDB *trie.Database) (*nodeResult, erro
 	if it.Leaf() {
 		return nil, nil
 	}
-	if bytes.Equal(nullHash.Bytes(), it.Hash().Bytes()) {
+	if IsNullHash(it.Hash()) {
 		return nil, nil
 	}
 
@@ -163,22 +153,12 @@ func resolveNode(it trie.NodeIterator, trieDB *trie.Database) (*nodeResult, erro
 	}, nil
 }
 
-func (s *Service) createSnapshot(it trie.NodeIterator, headerID int64) error {
+func (s *Service) createSnapshot(it trie.NodeIterator, headerID string) error {
 	tx, err := s.ipfsPublisher.BeginTx()
 	if err != nil {
 		return err
 	}
-
+	defer func() { err = CommitOrRollback(tx, err) }()
-	defer func() {
-		if rec := recover(); rec != nil {
-			shared.Rollback(tx)
-			panic(rec)
-		} else if err != nil {
-			shared.Rollback(tx)
-		} else {
-			err = s.ipfsPublisher.CommitTx(tx)
-		}
-	}()
 
 	for it.Next(true) {
 		res, err := resolveNode(it, s.stateDB.TrieDB())
@@ -207,7 +187,7 @@ func (s *Service) createSnapshot(it trie.NodeIterator, headerID int64) error {
 			encodedPath := trie.HexToCompact(valueNodePath)
 			leafKey := encodedPath[1:]
 			res.node.Key = common.BytesToHash(leafKey)
-			stateID, err := s.ipfsPublisher.PublishStateNode(&res.node, headerID, tx)
+			err := s.ipfsPublisher.PublishStateNode(&res.node, headerID, tx)
 			if err != nil {
 				return err
 			}
@@ -226,12 +206,12 @@ func (s *Service) createSnapshot(it trie.NodeIterator, headerID int64) error {
 				}
 			}
 
-			if tx, err = s.storageSnapshot(account.Root, stateID, tx); err != nil {
+			if tx, err = s.storageSnapshot(account.Root, headerID, res.node.Path, tx); err != nil {
 				return fmt.Errorf("failed building storage snapshot for account %+v\r\nerror: %w", account, err)
 			}
 		case Extension, Branch:
 			res.node.Key = common.BytesToHash([]byte{})
-			if _, err := s.ipfsPublisher.PublishStateNode(&res.node, headerID, tx); err != nil {
+			if err := s.ipfsPublisher.PublishStateNode(&res.node, headerID, tx); err != nil {
 				return err
 			}
 		default:
@@ -243,7 +223,7 @@ func (s *Service) createSnapshot(it trie.NodeIterator, headerID int64) error {
 }
 
 // Full-trie concurrent snapshot
-func (s *Service) createSnapshotAsync(tree state.Trie, headerID int64, workers uint) error {
+func (s *Service) createSnapshotAsync(tree state.Trie, headerID string, workers uint) error {
 	errors := make(chan error)
 	var wg sync.WaitGroup
 	for _, it := range iter.SubtrieIterators(tree, workers) {
@@ -267,7 +247,7 @@ func (s *Service) createSnapshotAsync(tree state.Trie, headerID int64, workers u
 	return nil
 }
 
-func (s *Service) storageSnapshot(sr common.Hash, stateID int64, tx *sqlx.Tx) (*sqlx.Tx, error) {
+func (s *Service) storageSnapshot(sr common.Hash, headerID string, statePath []byte, tx Tx) (Tx, error) {
 	if bytes.Equal(sr.Bytes(), emptyContractRoot.Bytes()) {
 		return tx, nil
 	}
@@ -311,7 +291,7 @@ func (s *Service) storageSnapshot(sr common.Hash, stateID int64, tx *sqlx.Tx) (*
 		default:
 			return nil, errors.New("unexpected node type")
 		}
-		if err = s.ipfsPublisher.PublishStorageNode(&res.node, stateID, tx); err != nil {
+		if err = s.ipfsPublisher.PublishStorageNode(&res.node, headerID, statePath, tx); err != nil {
 			return nil, err
 		}
 	}

pkg/snapshot/service_test.go

@@ -1,84 +1,57 @@
 package snapshot
 
 import (
-	"fmt"
-	"os"
-	"path/filepath"
 	"testing"
 
 	"github.com/golang/mock/gomock"
 
-	ethNode "github.com/ethereum/go-ethereum/statediff/indexer/node"
-	"github.com/ethereum/go-ethereum/statediff/indexer/postgres"
-
 	fixt "github.com/vulcanize/eth-pg-ipfs-state-snapshot/fixture"
-	"github.com/vulcanize/eth-pg-ipfs-state-snapshot/pkg/snapshot/mock"
+	mock "github.com/vulcanize/eth-pg-ipfs-state-snapshot/mocks/snapshot"
+	"github.com/vulcanize/eth-pg-ipfs-state-snapshot/test"
 )
 
 func testConfig(leveldbpath, ancientdbpath string) *Config {
-	dbParams := postgres.ConnectionParams{
-		Name:     "snapshot_test",
-		Hostname: "localhost",
-		Port:     5432,
-		User:     "tester",
-		Password: "test_pw",
-	}
-	connconfig := postgres.ConnectionConfig{
-		MaxIdle:     0,
-		MaxLifetime: 0,
-		MaxOpen:     4,
-	}
-	nodeinfo := ethNode.Info{
-		ID:           "eth_node_id",
-		ClientName:   "eth_client",
-		GenesisBlock: "X",
-		NetworkID:    "eth_network",
-		ChainID:      0,
-	}
-
 	return &Config{
-		DB: &DBConfig{
-			Node:       nodeinfo,
-			URI:        postgres.DbConnectionString(dbParams),
-			ConnConfig: connconfig,
-		},
 		Eth: &EthConfig{
 			LevelDBPath:   leveldbpath,
 			AncientDBPath: ancientdbpath,
+			NodeInfo:      test.DefaultNodeInfo,
+		},
+		DB: &DBConfig{
+			URI:        test.DefaultPgConfig.DbConnectionString(),
+			ConnConfig: test.DefaultPgConfig,
 		},
 	}
 }
 
 func TestCreateSnapshot(t *testing.T) {
-	wd, err := os.Getwd()
+	config := testConfig(fixt.ChaindataPath, fixt.AncientdataPath)
-	if err != nil {
-		panic(err)
-	}
-	fixture_path := filepath.Join(wd, "..", "..", "fixture")
-	datadir := filepath.Join(fixture_path, "chaindata")
-	if _, err := os.Stat(datadir); err != nil {
-		t.Fatal("no chaindata:", err)
-	}
-	config := testConfig(datadir, filepath.Join(datadir, "ancient"))
-	fmt.Printf("config: %+v %+v\n", config.DB, config.Eth)
 
 	edb, err := NewLevelDB(config.Eth)
 	if err != nil {
 		t.Fatal(err)
 	}
-	workers := 8
+	workers := 4
 
-	pub := mock.NewMockPublisher(t)
+	ctl := gomock.NewController(t)
-	pub.EXPECT().PublishHeader(gomock.Eq(fixt.PublishHeader))
+	tx := mock.NewMockTx(ctl)
+	pub := mock.NewMockPublisher(ctl)
+
+	pub.EXPECT().PublishHeader(gomock.Eq(&fixt.Header1))
 	pub.EXPECT().BeginTx().
+		Return(tx, nil).
 		Times(workers)
 	pub.EXPECT().PrepareTxForBatch(gomock.Any(), gomock.Any()).
+		Return(tx, nil).
 		Times(workers)
-	pub.EXPECT().PublishStateNode(gomock.Any(), mock.AnyOf(int64(0), int64(1)), gomock.Any()).
+	pub.EXPECT().PublishStateNode(gomock.Any(), gomock.Any(), gomock.Any()).
 		Times(workers)
 	// TODO: fixtures for storage node
 	// pub.EXPECT().PublishStorageNode(gomock.Eq(fixt.StorageNode), gomock.Eq(int64(0)), gomock.Any())
-	pub.EXPECT().CommitTx(gomock.Any()).
+	// pub.EXPECT().CommitTx(gomock.Any()).
+	//	Times(workers)
+
+	tx.EXPECT().Commit().
 		Times(workers)
 
 	service, err := NewSnapshotService(edb, pub)
@@ -94,6 +67,6 @@ func TestCreateSnapshot(t *testing.T) {
 
 	// err = service.CreateLatestSnapshot(0)
 	// if err != nil {
-	// 	t.Fatal(err)
+	//	t.Fatal(err)
 	// }
 }

pkg/snapshot/util.go

@@ -0,0 +1,26 @@
+package snapshot
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/ethereum/go-ethereum/statediff/indexer/database/sql/postgres"
+
+	file "github.com/vulcanize/eth-pg-ipfs-state-snapshot/pkg/snapshot/file"
+	pg "github.com/vulcanize/eth-pg-ipfs-state-snapshot/pkg/snapshot/pg"
+	snapt "github.com/vulcanize/eth-pg-ipfs-state-snapshot/pkg/types"
+)
+
+func NewPublisher(mode SnapshotMode, config *Config) (snapt.Publisher, error) {
+	switch mode {
+	case PgSnapshot:
+		driver, err := postgres.NewPGXDriver(context.Background(), config.DB.ConnConfig, config.Eth.NodeInfo)
+		if err != nil {
+			return nil, err
+		}
+		return pg.NewPublisher(postgres.NewPostgresDB(driver)), nil
+	case FileSnapshot:
+		return file.NewPublisher(config.File.OutputDir, config.Eth.NodeInfo)
+	}
+	return nil, fmt.Errorf("invalid snapshot mode: %s", mode)
+}

pkg/types/node_type.go

@@ -22,13 +22,12 @@ import (
 )
 
 // node for holding trie node information
-type node struct {
+type Node struct {
 	NodeType nodeType
 	Path     []byte
 	Key      common.Hash
 	Value    []byte
 }
-type Node = node
 
 // nodeType for explicitly setting type of node
 type nodeType int

pkg/types/publisher.go

@@ -3,15 +3,18 @@ package types
 import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/jmoiron/sqlx"
 )
 
 type Publisher interface {
-	PublishHeader(header *types.Header) (int64, error)
+	PublishHeader(header *types.Header) error
-	PublishStateNode(node *Node, headerID int64, tx *sqlx.Tx) (int64, error)
+	PublishStateNode(node *Node, headerID string, tx Tx) error
-	PublishStorageNode(node *Node, stateID int64, tx *sqlx.Tx) error
+	PublishStorageNode(node *Node, headerID string, statePath []byte, tx Tx) error
-	PublishCode(codeHash common.Hash, codeBytes []byte, tx *sqlx.Tx) error
+	PublishCode(codeHash common.Hash, codeBytes []byte, tx Tx) error
-	BeginTx() (*sqlx.Tx, error)
+	BeginTx() (Tx, error)
-	CommitTx(*sqlx.Tx) error
+	PrepareTxForBatch(tx Tx, batchSize uint) (Tx, error)
-	PrepareTxForBatch(tx *sqlx.Tx, batchSize uint) (*sqlx.Tx, error)
+}
+
+type Tx interface {
+	Rollback() error
+	Commit() error
 }

pkg/types/schema.go

@@ -0,0 +1,73 @@
+package types
+
+var TableIPLDBlock = Table{
+	`public.blocks`,
+	[]column{
+		{"key", text},
+		{"data", bytea},
+	},
+	`ON CONFLICT (key) DO NOTHING`,
+}
+
+var TableNodeInfo = Table{
+	Name: `public.nodes`,
+	Columns: []column{
+		{"genesis_block", varchar},
+		{"network_id", varchar},
+		{"node_id", varchar},
+		{"client_name", varchar},
+		{"chain_id", integer},
+	},
+}
+
+var TableHeader = Table{
+	"eth.header_cids",
+	[]column{
+		{"block_number", bigint},
+		{"block_hash", varchar},
+		{"parent_hash", varchar},
+		{"cid", text},
+		{"td", numeric},
+		{"node_id", varchar},
+		{"reward", numeric},
+		{"state_root", varchar},
+		{"tx_root", varchar},
+		{"receipt_root", varchar},
+		{"uncle_root", varchar},
+		{"bloom", bytea},
+		{"timestamp", numeric},
+		{"mh_key", text},
+		{"times_validated", integer},
+		{"coinbase", varchar},
+	},
+	"ON CONFLICT (block_hash) DO UPDATE SET (parent_hash, cid, td, node_id, reward, state_root, tx_root, receipt_root, uncle_root, bloom, timestamp, mh_key, times_validated, coinbase) = (EXCLUDED.parent_hash, EXCLUDED.cid, EXCLUDED.td, EXCLUDED.node_id, EXCLUDED.reward, EXCLUDED.state_root, EXCLUDED.tx_root, EXCLUDED.receipt_root, EXCLUDED.uncle_root, EXCLUDED.bloom, EXCLUDED.timestamp, EXCLUDED.mh_key, eth.header_cids.times_validated + 1, EXCLUDED.coinbase)",
+}
+
+var TableStateNode = Table{
+	"eth.state_cids",
+	[]column{
+		{"header_id", varchar},
+		{"state_leaf_key", varchar},
+		{"cid", text},
+		{"state_path", bytea},
+		{"node_type", integer},
+		{"diff", boolean},
+		{"mh_key", text},
+	},
+	`ON CONFLICT (header_id, state_path) DO UPDATE SET (state_leaf_key, cid, node_type, diff, mh_key) = (EXCLUDED.state_leaf_key, EXCLUDED.cid, EXCLUDED.node_type, EXCLUDED.diff, EXCLUDED.mh_key)`,
+}
+
+var TableStorageNode = Table{
+	"eth.storage_cids",
+	[]column{
+		{"header_id", varchar},
+		{"state_path", bytea},
+		{"storage_leaf_key", varchar},
+		{"cid", text},
+		{"storage_path", bytea},
+		{"node_type", integer},
+		{"diff", boolean},
+		{"mh_key", text},
+	},
+	"ON CONFLICT (header_id, state_path, storage_path) DO UPDATE SET (storage_leaf_key, cid, node_type, diff, mh_key) = (EXCLUDED.storage_leaf_key, EXCLUDED.cid, EXCLUDED.node_type, EXCLUDED.diff, EXCLUDED.mh_key)",
+}

pkg/types/table.go

@@ -0,0 +1,79 @@
+package types
+
+import (
+	"fmt"
+	"strings"
+)
+
+type colType int
+
+const (
+	integer colType = iota
+	boolean
+	bigint
+	numeric
+	bytea
+	varchar
+	text
+)
+
+type column struct {
+	name string
+	typ  colType
+}
+type Table struct {
+	Name           string
+	Columns        []column
+	conflictClause string
+}
+
+func (tbl *Table) ToCsvRow(args ...interface{}) []string {
+	var row []string
+	for i, col := range tbl.Columns {
+		row = append(row, col.typ.formatter()(args[i]))
+	}
+	return row
+}
+
+func (tbl *Table) ToInsertStatement() string {
+	var colnames, placeholders []string
+	for i, col := range tbl.Columns {
+		colnames = append(colnames, col.name)
+		placeholders = append(placeholders, fmt.Sprintf("$%d", i+1))
+	}
+	return fmt.Sprintf(
+		"INSERT INTO %s (%s) VALUES (%s) %s",
+		tbl.Name, strings.Join(colnames, ", "), strings.Join(placeholders, ", "), tbl.conflictClause,
+	)
+}
+
+type colfmt = func(interface{}) string
+
+func sprintf(f string) colfmt {
+	return func(x interface{}) string { return fmt.Sprintf(f, x) }
+}
+
+func (typ colType) formatter() colfmt {
+	switch typ {
+	case integer:
+		return sprintf("%d")
+	case boolean:
+		return func(x interface{}) string {
+			if x.(bool) {
+				return "t"
+			}
+			return "f"
+		}
+	case bigint:
+		return sprintf("%s")
+	case numeric:
+		return sprintf("%d")
+	case bytea:
+		return sprintf(`\x%x`)
+	case varchar:
+		return sprintf("%s")
+	case text:
+		return sprintf("%s")
+	}
+	panic("unreachable")
+}

pkg/types/util.go

@@ -0,0 +1,33 @@
+package types
+
+import (
+	"bytes"
+
+	"github.com/sirupsen/logrus"
+
+	"github.com/ethereum/go-ethereum/common"
+)
+
+var nullHash = common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000")
+
+func IsNullHash(hash common.Hash) bool {
+	return bytes.Equal(hash.Bytes(), nullHash.Bytes())
+}
+
+func CommitOrRollback(tx Tx, err error) error {
+	var rberr error
+	defer func() {
+		if rberr != nil {
+			logrus.Errorf("rollback failed: %s", rberr)
+		}
+	}()
+	if rec := recover(); rec != nil {
+		rberr = tx.Rollback()
+		panic(rec)
+	} else if err != nil {
+		rberr = tx.Rollback()
+	} else {
+		err = tx.Commit()
+	}
+	return err
+}

test/helper.go

@@ -0,0 +1,52 @@
+package test
+
+import (
+	"os"
+	"reflect"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/statediff/indexer/database/sql/postgres"
+	ethnode "github.com/ethereum/go-ethereum/statediff/indexer/node"
+)
+
+var (
+	DefaultNodeInfo = ethnode.Info{
+		ID:           "test_nodeid",
+		ClientName:   "test_client",
+		GenesisBlock: "TEST_GENESIS",
+		NetworkID:    "test_network",
+		ChainID:      0,
+	}
+	DefaultPgConfig = postgres.Config{
+		Hostname:     "localhost",
+		Port:         5432,
+		DatabaseName: "vulcanize_test",
+		Username:     "vulcanize",
+		Password:     "vulcanize_password",
+
+		MaxIdle:         0,
+		MaxConnLifetime: 0,
+		MaxConns:        4,
+	}
+)
+
+func NeedsDB(t *testing.T) {
+	t.Helper()
+	if os.Getenv("TEST_WITH_DB") == "" {
+		t.Skip("set TEST_WITH_DB to enable test")
+	}
+}
+
+func NoError(t *testing.T, err error) {
+	t.Helper()
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+// ExpectEqual asserts the provided interfaces are deep equal
+func ExpectEqual(t *testing.T, want interface{}, got interface{}) {
+	if !reflect.DeepEqual(want, got) {
+		t.Fatalf("Expected: %v\nActual: %v", want, got)
+	}
+}