From 22d8a8edb47e634923ad8198e46e14b5ad1215e0 Mon Sep 17 00:00:00 2001
From: fabiobaiao <fabio.baiao@uphold.com>
Date: Mon, 19 Feb 2024 16:48:27 +0000
Subject: [PATCH] Add support to build arm images

---
 .github/workflows/build.yaml | 4 ++++
 0.21/Dockerfile              | 9 +++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index a92ce87..f1f3ba9 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -70,6 +70,10 @@ jobs:
             fi
           fi
 
+          if [[ ${LITECOIN_VERSION} != *"alpine"* ]] && [ $(version ${LITECOIN_VERSION}) -ge $(version "0.21") ]; then
+            PLATFORMS="linux/amd64,linux/arm/v7,linux/arm64"
+          fi
+
           echo ::set-output name=build_date::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
           echo ::set-output name=docker_platforms::${PLATFORMS}
           echo ::set-output name=push::${PUSH}
diff --git a/0.21/Dockerfile b/0.21/Dockerfile
index e165654..cf1e4e8 100644
--- a/0.21/Dockerfile
+++ b/0.21/Dockerfile
@@ -30,13 +30,18 @@ RUN curl -o /usr/local/bin/gosu -fSL https://github.com/tianon/gosu/releases/dow
   && rm /usr/local/bin/gosu.asc \
   && chmod +x /usr/local/bin/gosu
 
+ARG TARGETPLATFORM
 ENV LITECOIN_VERSION=0.21.2.2
 ENV LITECOIN_DATA=/home/litecoin/.litecoin
 
-RUN curl -SLO https://download.litecoin.org/litecoin-${LITECOIN_VERSION}/linux/litecoin-${LITECOIN_VERSION}-x86_64-linux-gnu.tar.gz \
+RUN set -ex \
+  && if [ "${TARGETPLATFORM}" = "linux/amd64" ]; then export TARGETPLATFORM=x86_64-linux-gnu; fi \
+  && if [ "${TARGETPLATFORM}" = "linux/arm64" ]; then export TARGETPLATFORM=aarch64-linux-gnu; fi \
+  && if [ "${TARGETPLATFORM}" = "linux/arm/v7" ]; then export TARGETPLATFORM=arm-linux-gnueabihf; fi \
+  && curl -SLO https://download.litecoin.org/litecoin-${LITECOIN_VERSION}/linux/litecoin-${LITECOIN_VERSION}-${TARGETPLATFORM}.tar.gz \
   && curl -SLO https://download.litecoin.org/litecoin-${LITECOIN_VERSION}/SHA256SUMS.asc \
   && gpg --verify SHA256SUMS.asc \
-  && grep $(sha256sum litecoin-${LITECOIN_VERSION}-x86_64-linux-gnu.tar.gz | awk '{ print $1 }') SHA256SUMS.asc \
+  && grep $(sha256sum litecoin-${LITECOIN_VERSION}-${TARGETPLATFORM}.tar.gz | awk '{ print $1 }') SHA256SUMS.asc \
   && tar --strip=2 -xzf *.tar.gz -C /usr/local/bin \
   && rm *.tar.gz