[PATCH v3 6/6] travis: build and test on Linux with musl libc and busybox

["Đoàn Trần Công Danh" <congdanhqx@gmail.com>]

Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
---
 .travis.yml                       |  8 +++++++
 azure-pipelines.yml               | 35 +++++++++++++++++++++++++++++++
 ci/install-docker-dependencies.sh |  4 ++++
 ci/lib.sh                         |  5 +++++
 ci/run-docker-build.sh            |  4 ++++
 ci/run-docker.sh                  |  3 +++
 6 files changed, 59 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 069aeeff3c..0cfc3c3428 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/azure-pipelines.yml b/azure-pipelines.yml
index 11413f66f8..84ecad76ec 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -514,6 +514,41 @@ jobs:
       PathtoPublish: t/failed-test-artifacts
       ArtifactName: failed-test-artifacts
 
+- job: linux_musl
+  displayName: linux-musl
+  condition: succeeded()
+  pool:
+    vmImage: ubuntu-latest
+  steps:
+  - bash: |
+       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || ci/mount-fileshare.sh //gitfileshare.file.core.windows.net/test-cache gitfileshare "$GITFILESHAREPWD" "$HOME/test-cache" || exit 1
+
+       res=0
+       sudo AGENT_OS="$AGENT_OS" BUILD_BUILDNUMBER="$BUILD_BUILDNUMBER" BUILD_REPOSITORY_URI="$BUILD_REPOSITORY_URI" BUILD_SOURCEBRANCH="$BUILD_SOURCEBRANCH" BUILD_SOURCEVERSION="$BUILD_SOURCEVERSION" SYSTEM_PHASENAME="$SYSTEM_PHASENAME" SYSTEM_TASKDEFINITIONSURI="$SYSTEM_TASKDEFINITIONSURI" SYSTEM_TEAMPROJECT="$SYSTEM_TEAMPROJECT" CC=$CC MAKEFLAGS="$MAKEFLAGS" jobname=linux-musl bash -lxc ci/run-docker.sh || res=1
+
+       sudo chmod a+r t/out/TEST-*.xml
+       test ! -d t/failed-test-artifacts || sudo chmod a+r t/failed-test-artifacts
+
+       test "$GITFILESHAREPWD" = '$(gitfileshare.pwd)' || sudo umount "$HOME/test-cache" || res=1
+       exit $res
+    displayName: 'jobname=linux-musl ci/run-docker.sh'
+    env:
+      GITFILESHAREPWD: $(gitfileshare.pwd)
+  - task: PublishTestResults@2
+    displayName: 'Publish Test Results **/TEST-*.xml'
+    inputs:
+      mergeTestResults: true
+      testRunTitle: 'musl'
+      platform: Linux
+      publishRunAttachments: false
+    condition: succeededOrFailed()
+  - task: PublishBuildArtifacts@1
+    displayName: 'Publish trash directories of failed tests'
+    condition: failed()
+    inputs:
+      PathtoPublish: t/failed-test-artifacts
+      ArtifactName: failed-test-artifacts
+
 - job: static_analysis
   displayName: StaticAnalysis
   condition: succeeded()
diff --git a/ci/install-docker-dependencies.sh b/ci/install-docker-dependencies.sh
index a104c61d29..26a6689766 100755
--- a/ci/install-docker-dependencies.sh
+++ b/ci/install-docker-dependencies.sh
@@ -11,4 +11,8 @@ Linux32)
 			libssl-dev libexpat-dev gettext python >/dev/null
 	'
 	;;
+linux-musl)
+	apk add --update build-base curl-dev openssl-dev expat-dev gettext \
+		pcre2-dev python3 musl-libintl perl-utils ncurses >/dev/null
+	;;
 esac
diff --git a/ci/lib.sh b/ci/lib.sh
index d637825222..87cd29bab6 100755
--- a/ci/lib.sh
+++ b/ci/lib.sh
@@ -201,6 +201,11 @@ GIT_TEST_GETTEXT_POISON)
 Linux32)
 	CC=gcc
 	;;
+linux-musl)
+	CC=gcc
+	MAKEFLAGS="$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 4a153492ba..8d47a5fda3 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 3881f99b53..37fa372052 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
 	;;
-- 
2.26.0.334.g6536db25bb