From 24d56f565e90f288776fec36a6701d86efb357b7 Mon Sep 17 00:00:00 2001
From: rbrooklyn <11929484+rbrooklyn@users.noreply.github.com>
Date: Fri, 14 Feb 2020 16:43:58 +0000
Subject: [PATCH] Replace jq with our custom routine for mempool-config.json

---
 entrypoint.sh | 47 ++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 44 insertions(+), 3 deletions(-)

diff --git a/entrypoint.sh b/entrypoint.sh
index eab7121b7..937b86ac2 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,10 +1,51 @@
-#!/bin/sh
+#!/bin/bash
+## Start SQL
 mysqld_safe&
 sleep 5
+## http server:
 nginx
+
+## Set up some files:
 cd /mempool.space/backend 
-rm -f mempool-config.json
 rm -f cache.json
 touch cache.json
-jq -n env > mempool-config.json
+
+## Build mempool-config.json file ourseleves.
+## We used to use jq for this but that produced output which caused bugs,
+## specifically numbers were surrounded by quotes, which breaks things.
+## Old command was jq -n env > mempool-config.json
+## This way is more complex, but more compatible with the backend functions.
+
+## Define a function to allow us to easily get indexes of the = string in from the env output:
+strindex() { 
+  x="${1%%$2*}"
+  [[ "$x" = "$1" ]] && echo -1 || echo "${#x}"
+}
+## Regex to check if we have a number or not:
+NumberRegEx='^[0-9]+$'
+## Delete the old file, and start a new one:
+rm -f mempool-config.json
+echo "{" >> mempool-config.json
+## For each env we add into the mempool-config.json file in one of two ways.
+## Either:
+## "Variable": "Value",
+## if a string, or
+## "Variable": Value,
+## if a integer
+for e in `env`; do
+    if [[ ${e:`strindex "$e" "="`+1} =~ $NumberRegEx ]] ; then
+        ## Integer add:
+        echo "\""${e:0:`strindex "$e" "="`}"\": "${e:`strindex "$e" "="`+1}","  >> mempool-config.json
+    else
+        ## String add:
+        echo "\""${e:0:`strindex "$e" "="`}"\": \""${e:`strindex "$e" "="`+1}$"\","  >> mempool-config.json
+    fi
+done
+## Take out the trailing , from the last entry.
+## This means replacing the file with one that is missing the last character
+echo `sed '$ s/.$//' mempool-config.json` > mempool-config.json
+## And finally finish off:
+echo "}" >> mempool-config.json
+
+## Start mempoolspace:
 node dist/index.js