From e0f8690dee7ec9373657eb2ecef9c8d88d0ece08 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C4=90o=C3=A0n=20Tr=E1=BA=A7n=20C=C3=B4ng=20Danh?=
 <congdanhqx@gmail.com>
Date: Sat, 4 Apr 2020 08:08:50 +0700
Subject: [PATCH] travis: build and test on Linux with musl libc and busybox
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 .travis.yml                       | 8 ++++++++
 ci/install-docker-dependencies.sh | 4 ++++
 ci/lib.sh                         | 5 +++++
 ci/run-docker-build.sh            | 4 ++++
 ci/run-docker.sh                  | 3 +++
 5 files changed, 24 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 069aeeff3c9..0cfc3c3428b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -33,6 +33,14 @@ matrix:
         - docker
       before_install:
       script: ci/run-docker.sh
+    - env: jobname=linux-musl
+      os: linux
+      compiler:
+      addons:
+      services:
+        - docker
+      before_install:
+      script: ci/run-docker.sh
     - env: jobname=StaticAnalysis
       os: linux
       compiler:
diff --git a/ci/install-docker-dependencies.sh b/ci/install-docker-dependencies.sh
index a104c61d292..26a6689766d 100755
--- a/ci/install-docker-dependencies.sh
+++ b/ci/install-docker-dependencies.sh
@@ -11,4 +11,8 @@ Linux32)
 			libssl-dev libexpat-dev gettext python >/dev/null
 	'
 	;;
+linux-musl)
+	apk add --update build-base curl-dev openssl-dev expat-dev gettext \
+		pcre2-dev python3 musl-libintl perl-utils ncurses >/dev/null
+	;;
 esac
diff --git a/ci/lib.sh b/ci/lib.sh
index 80483352814..e9a5c51425a 100755
--- a/ci/lib.sh
+++ b/ci/lib.sh
@@ -195,6 +195,11 @@ GIT_TEST_GETTEXT_POISON)
 Linux32)
 	CC=gcc
 	;;
+linux-musl)
+	CC=gcc
+	MAKEFLAGS="$MAKEFLAGS PYTHON_PATH=/usr/bin/python3 USE_LIBPCRE2=Yes"
+	MAKEFLAGS="$MAKEFLAGS NO_REGEX=Yes ICONV_OMITS_BOM=Yes"
+	;;
 esac
 
 MAKEFLAGS="$MAKEFLAGS CC=${CC:-cc}"
diff --git a/ci/run-docker-build.sh b/ci/run-docker-build.sh
index 4a153492ba2..8d47a5fda3b 100755
--- a/ci/run-docker-build.sh
+++ b/ci/run-docker-build.sh
@@ -18,6 +18,10 @@ case "$jobname" in
 Linux32)
 	switch_cmd="linux32 --32bit i386"
 	;;
+linux-musl)
+	switch_cmd=
+	useradd () { adduser -D "$@"; }
+	;;
 *)
 	exit 1
 	;;
diff --git a/ci/run-docker.sh b/ci/run-docker.sh
index 3881f99b533..37fa372052d 100755
--- a/ci/run-docker.sh
+++ b/ci/run-docker.sh
@@ -9,6 +9,9 @@ case "$jobname" in
 Linux32)
 	CI_CONTAINER="daald/ubuntu32:xenial"
 	;;
+linux-musl)
+	CI_CONTAINER=alpine
+	;;
 *)
 	exit 1
 	;;