From e4643fb6ef509928b6b49e78b41c61edfed03a99 Mon Sep 17 00:00:00 2001
From: Jacob Gadikian <jacobgadikian@gmail.com>
Date: Fri, 5 Aug 2022 14:41:57 +0700
Subject: [PATCH] Create statesync.bash

---
 scripts/statesync.bash | 49 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 scripts/statesync.bash

diff --git a/scripts/statesync.bash b/scripts/statesync.bash
new file mode 100644
index 000000000..d3a540c32
--- /dev/null
+++ b/scripts/statesync.bash
@@ -0,0 +1,49 @@
+#!/bin/bash
+# microtick and bitcanna contributed significantly here.
+# Pebbledb state sync script for evmos
+set -uxe
+
+# Set Golang environment variables.
+export GOPATH=~/go
+export PATH=$PATH:~/go/bin
+
+# Install Juno with pebbledb 
+go mod edit -replace github.com/tendermint/tm-db=github.com/notional-labs/tm-db@136c7b6
+go mod tidy
+go install -ldflags '-w -s -X github.com/cosmos/cosmos-sdk/types.DBBackend=pebbledb' -tags pebbledb ./...
+
+# NOTE: ABOVE YOU CAN USE ALTERNATIVE DATABASES, HERE ARE THE EXACT COMMANDS
+# go install -ldflags '-w -s -X github.com/cosmos/cosmos-sdk/types.DBBackend=rocksdb' -tags rocksdb ./...
+# go install -ldflags '-w -s -X github.com/cosmos/cosmos-sdk/types.DBBackend=badgerdb' -tags badgerdb ./...
+# go install -ldflags '-w -s -X github.com/cosmos/cosmos-sdk/types.DBBackend=boltdb' -tags boltdb ./...
+
+# Initialize chain.
+fetchd init test
+
+# Get Genesis
+wget https://storage.googleapis.com/fetch-ai-mainnet-v2-genesis/genesis-fetchhub4.json
+mv genesis-fetchhub4.json ~/.fetchd/config/genesis.json
+
+# Get "trust_hash" and "trust_height".
+INTERVAL=1000
+LATEST_HEIGHT="$(curl -s https://evmos-rpc.polkachu.com/block | jq -r .result.block.header.height)"
+BLOCK_HEIGHT="$((LATEST_HEIGHT-INTERVAL))"
+TRUST_HASH="$(curl -s "https://evmos-rpc.polkachu.com/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)"
+
+# Print out block and transaction hash from which to sync state.
+echo "trust_height: $BLOCK_HEIGHT"
+echo "trust_hash: $TRUST_HASH"
+
+# Export state sync variables.
+export FETCHD_STATESYNC_ENABLE=true
+export FETCHD_P2P_MAX_NUM_OUTBOUND_PEERS=200
+export FETCHD_STATESYNC_RPC_SERVERS="https://rpc-juno-ia.notional.ventures:443,https://juno-rpc.polkachu.com:443"
+export FETCHD_STATESYNC_TRUST_HEIGHT=$BLOCK_HEIGHT
+export FETCHD_STATESYNC_TRUST_HASH=$TRUST_HASH
+
+# Fetch and set list of seeds from chain registry.
+FETCHD_P2P_SEEDS="$(curl -s https://raw.githubusercontent.com/cosmos/chain-registry/master/fetchhub/chain.json | jq -r '[foreach .peers.seeds[] as $item (""; "\($item.id)@\($item.address)")] | join(",")')"
+export FETCHD_P2P_SEEDS
+
+# Start chain.
+fetchd start --x-crisis-skip-assert-invariants --db_backend pebbledb