From a4afe8efdfeb329e7c7742fb2f061348dd9b63ff Mon Sep 17 00:00:00 2001
From: Linus Kendall <git@linuskendall.com>
Date: Mon, 2 Sep 2024 10:38:04 +0000
Subject: [PATCH] Move to config generation

Move the remote config example to use a generated config rather than downloading configs that may be outdated.

Also creating a simple script to generate a config.
---
 tools/generate-config-http.sh  | 87 ++++++++++++++++++++++++++++++++++
 tools/run-rpc-server-remote.sh |  9 +++-
 2 files changed, 94 insertions(+), 2 deletions(-)
 create mode 100755 tools/generate-config-http.sh

diff --git a/tools/generate-config-http.sh b/tools/generate-config-http.sh
new file mode 100755
index 00000000..8ba7d912
--- /dev/null
+++ b/tools/generate-config-http.sh
@@ -0,0 +1,87 @@
+#!/bin/bash
+
+set -o pipefail
+set -e
+
+# Check if there is an epoch number provided
+if [ $# -eq 0 ]; then
+    echo "No epoch number provided"
+    exit 1
+fi
+
+EPOCH=$1
+# Check if the epoch number is a number
+re='^[0-9]+$'
+if ! [[ $EPOCH =~ $re ]]; then
+    echo "Epoch number is not a number"
+    exit 1
+fi
+
+# Check if the epoch number is greater than or equal to 0
+if [ $EPOCH -lt 0 ]; then
+    echo "Epoch number is less than 0"
+    exit 1
+fi
+
+# Check if wget is available
+DOWNLOAD_COMMAND="wget"
+READ_COMMAND="wget -qO-"
+if ! [ -x "$(command -v wget)" ]; then
+    # Fallback to curl
+    if ! [ -x "$(command -v curl)" ]; then
+        echo "curl nor wget not installed"
+        exit 1
+    else
+        DOWNLOAD_COMMAND="curl -O"
+        READ_COMMAND="curl -s"
+    fi
+    echo "wget is not installed"
+    exit 1
+fi
+
+CID_URL=https://files.old-faithful.net/${EPOCH}/epoch-${EPOCH}.cid
+EPOCH_CID=$($READ_COMMAND $CID_URL)
+
+CONFIG_FILE_NAME="epoch-${EPOCH}.yml"
+
+# Check if this is epoch 0 and in that case download the genesis file
+if [ $EPOCH -eq 0 ]; then
+# Check if genesis.tar.bz2 is already downloaded
+    if [ ! -f "genesis.tar.bz2" ]; then
+        GENESIS_URL=https://api.mainnet-beta.solana.com/genesis.tar.bz2
+        $DOWNLOAD_COMMAND $GENESIS_URL
+    fi
+    GENESIS_CONFIG=$(cat <<EOF
+genesis:
+  uri: ${PWD}/genesis.tar.bz2
+EOF
+)
+else
+    GENESIS_CONFIG=""
+fi
+
+CONFIG_CONTENT=$(cat <<EOF
+version: 1
+epoch: ${EPOCH}
+data:
+  car:
+    uri: https://files.old-faithful.net/${EPOCH}/epoch-${EPOCH}.car
+  filecoin:
+    enable: false
+${GENESIS_CONFIG}
+indexes:
+  cid_to_offset:
+    uri: https://files.old-faithful.net/${EPOCH}/epoch-${EPOCH}.car.${EPOCH_CID}.cid-to-offset.index
+  sig_to_cid:
+    uri: https://files.old-faithful.net/${EPOCH}/epoch-${EPOCH}.car.${EPOCH_CID}.sig-to-cid.index
+  slot_to_cid:
+    uri: https://files.old-faithful.net/${EPOCH}/epoch-${EPOCH}.car.${EPOCH_CID}.slot-to-cid.index
+  sig_exists:
+    uri: https://files.old-faithful.net/${EPOCH}/epoch-${EPOCH}.car.${EPOCH_CID}.sig-exists.index
+EOF
+)
+
+# Write the content of the multiline variable to the configuration file
+echo "$CONFIG_CONTENT" > $CONFIG_FILE_NAME
+
+echo "Configuration file '$CONFIG_FILE_NAME' has been generated."
diff --git a/tools/run-rpc-server-remote.sh b/tools/run-rpc-server-remote.sh
index 925db221..ad512a53 100755
--- a/tools/run-rpc-server-remote.sh
+++ b/tools/run-rpc-server-remote.sh
@@ -44,9 +44,14 @@ fi
 CID_URL=https://files.old-faithful.net/${EPOCH}/epoch-${EPOCH}.cid
 EPOCH_CID=$($READ_COMMAND $CID_URL)
 
-EPOCH_CONFIG_URL=https://files.old-faithful.net/${EPOCH}/epoch-${EPOCH}.yml
+# This might be bash only, but ok
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
 
-wget -q ${EPOCH_CONFIG_URL} -O epoch-${EPOCH}.yml
+# Check if the config file exists locally or create it
+if [ ! -f "epoch-${EPOCH}.yml" ]; then
+    echo "Epoch config file missing, creating it"
+    $SCRIPT_DIR/generate-config-http.sh $EPOCH
+fi
 
 set -x
 faithful-cli rpc --listen ":7999" \