From a2e0638c6a441c9eed096c1a9cd29e92ebeb6d50 Mon Sep 17 00:00:00 2001
From: Kyle Carberry <kyle@kwc.io>
Date: Fri, 26 Apr 2019 09:56:14 -0400
Subject: [PATCH] Add support for musl and centos

---
 .travis.yml                     |  6 +++++
 build/platform.ts               | 42 +++++++++++++++++++++++++++++++++
 build/tasks.ts                  |  5 ++--
 packages/server/scripts/nbin.ts |  4 +++-
 scripts/build.sh                | 32 +++++++++++++++++++++++--
 5 files changed, 84 insertions(+), 5 deletions(-)
 create mode 100644 build/platform.ts

diff --git a/.travis.yml b/.travis.yml
index 5caa7668..4cf5f487 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,12 @@ matrix:
   include:
   - os: linux
     dist: trusty
+    env:
+      - TARGET="centos"
+  - os: linux
+    dist: trusty
+    env:
+      - TARGET="alpine"
   - os: osx
 before_install:
 - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get install libxkbfile-dev
diff --git a/build/platform.ts b/build/platform.ts
new file mode 100644
index 00000000..55f8b755
--- /dev/null
+++ b/build/platform.ts
@@ -0,0 +1,42 @@
+/**
+ * Script that detects platform name and arch.
+ * Cannot use os.platform() as that won't detect libc version
+ */
+import * as cp from "child_process";
+import * as fs from "fs";
+import * as os from "os";
+
+enum Lib {
+	GLIBC,
+	MUSL,
+}
+
+const CLIB: Lib | undefined = ((): Lib | undefined => {
+	if (os.platform() !== "linux") {
+		return;
+	}
+	const glibc = cp.spawnSync("getconf", ["GNU_LIBC_VERSION"]);
+	if (glibc.status === 0) {
+		return Lib.GLIBC;
+	}
+
+	const ldd = cp.spawnSync("ldd", ["--version"]);
+	if (ldd.stdout && ldd.stdout.indexOf("musl") !== -1) {
+		return Lib.MUSL;
+	}
+
+	const muslFile = fs.readdirSync("/lib").find((value) => value.startsWith("libc.musl"));
+	if (muslFile) {
+		return Lib.MUSL;
+	}
+
+	return Lib.GLIBC;
+})();
+
+export const platform = (): NodeJS.Platform | "musl" => {
+	if (CLIB === Lib.MUSL) {
+		return "musl";
+	}
+
+	return os.platform();
+};
diff --git a/build/tasks.ts b/build/tasks.ts
index 06199fa8..45d171cf 100644
--- a/build/tasks.ts
+++ b/build/tasks.ts
@@ -2,6 +2,7 @@ import { register, run } from "@coder/runner";
 import * as fs from "fs";
 import * as fse from "fs-extra";
 import * as os from "os";
+import { platform } from "./platform";
 import * as path from "path";
 import * as zlib from "zlib";
 import * as https from "https";
@@ -180,12 +181,12 @@ register("package", async (runner, releaseTag) => {
 
 	const releasePath = path.resolve(__dirname, "../release");
 
-	const archiveName = `code-server${releaseTag}-${os.platform()}-${os.arch()}`;
+	const archiveName = `code-server${releaseTag}-${platform()}-${os.arch()}`;
 	const archiveDir = path.join(releasePath, archiveName);
 	fse.removeSync(archiveDir);
 	fse.mkdirpSync(archiveDir);
 
-	const binaryPath = path.join(__dirname, `../packages/server/cli-${os.platform()}-${os.arch()}`);
+	const binaryPath = path.join(__dirname, `../packages/server/cli-${platform()}-${os.arch()}`);
 	const binaryDestination = path.join(archiveDir, "code-server");
 	fse.copySync(binaryPath, binaryDestination);
 	fs.chmodSync(binaryDestination, "755");
diff --git a/packages/server/scripts/nbin.ts b/packages/server/scripts/nbin.ts
index ae3674b8..bbc76ba1 100644
--- a/packages/server/scripts/nbin.ts
+++ b/packages/server/scripts/nbin.ts
@@ -2,11 +2,13 @@ import { Binary } from "@coder/nbin";
 import * as fs from "fs";
 import * as os from "os";
 import * as path from "path";
+import { platform } from "../../../build/platform";
 
-const target = `${os.platform()}-${os.arch()}`;
+const target = `${platform()}-${os.arch()}`;
 const rootDir = path.join(__dirname, "..");
 const bin = new Binary({
 	mainFile: path.join(rootDir, "out", "cli.js"),
+	target: platform() === "darwin" ? "darwin" : platform() === "musl" ? "alpine" : "linux",
 });
 bin.writeFiles(path.join(rootDir, "build", "**"));
 bin.writeFiles(path.join(rootDir, "out", "**"));
diff --git a/scripts/build.sh b/scripts/build.sh
index 3d954fee..2c7c0dff 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -1,4 +1,32 @@
 #!/bin/bash
-set -e
+set -euxo pipefail
 
-yarn task build:server:binary
+# Variables to be set:
+# $IMAGE
+function docker_build() {
+	containerID=$(docker create -it -v $(pwd)/.cache:/src/.cache $IMAGE)
+	docker start $containerID
+	docker exec $containerID mkdir -p /src
+
+	function exec() {
+		docker exec $containerID bash -c "$@"
+	}
+
+	docker cp ./. $containerID:/src
+	exec "cd /src && yarn"
+	exec "cd /src && npm rebuild"
+	exec "cd /src && yarn task build:server:binary"
+	exec "cd /src && yarn task package $VERSION"
+	docker cp $containerID:/src/release/. ./release/
+}
+
+if [[ "$OSTYPE" == "darwin"* ]]; then
+	yarn task build:server:binary
+else
+	if [[ "$TARGET" == "alpine" ]]; then
+		IMAGE="codercom/nbin-alpine"
+	else
+		IMAGE="codercom/nbin-centos"
+	fi
+	docker_build
+fi