From d7d9486e6ec4d52bc3467c5b82cebc2ad6e5e01c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Geyslan=20Greg=C3=B3rio?= <geyslan@gmail.com>
Date: Tue, 21 May 2024 10:28:32 -0300
Subject: [PATCH] chore: make bpftool installable in alpine linux (#117)

---
 3rdparty/bpftool.sh | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/3rdparty/bpftool.sh b/3rdparty/bpftool.sh
index 0edd6bd0..f679a540 100755
--- a/3rdparty/bpftool.sh
+++ b/3rdparty/bpftool.sh
@@ -1,8 +1,25 @@
 #!/bin/bash -e
 
+if [ ! -f /etc/os-release ]; then
+    echo "Unknown OS"
+    exit 1
+fi
+
+# shellcheck source=/dev/null
+# See SC1091
+. /etc/os-release
+
+if [ "$ID" == "alpine" ]; then
+    sudo apk add build-base elfutils-dev zlib-dev libcap-dev binutils-dev pkgconf libelf
+elif [ "$ID" == "ubuntu" ]; then
+    sudo apt-get -y install build-essential libelf-dev libz-dev libcap-dev binutils-dev pkg-config libelf1
+else
+    echo "Unsupported OS"
+    exit 1
+fi
+
 git submodule update --init --recursive 3rdparty/bpftool
 cd ./3rdparty/bpftool
-sudo apt-get -y install build-essential libelf-dev libz-dev libcap-dev binutils-dev pkg-config libelf1
 make -C src clean
 CC=clang make -C src all
 sudo cp ./src/bpftool /usr/sbin/bpftool