From 1063bba06b4e4236350c426d3edf37f069728465 Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@collabora.com>
Date: Mon, 21 Jan 2019 15:00:34 +0000
Subject: [PATCH] CI: Do the CMake native debug build from an Autotools `make
 dist`

We officially release dbus in the form of Autotools `make dist` tarballs,
but people who have downloaded those tarballs should be able to choose
the CMake build system. Our CI should assert that they can.

(The Autotools debug build already does a `make distcheck`, which
asserts that tarball releases can be used for an Autotools build.)

Signed-off-by: Simon McVittie <smcv@collabora.com>
Resolves: dbus#255
---
 .gitlab-ci.yml    |  2 +-
 .travis.yml       |  2 +-
 tools/ci-build.sh | 15 ++++++++++++++-
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e1cefb73f..f291803b5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -82,7 +82,7 @@ build:cmake:
   stage: build
   image: "debian:stretch-slim"
   variables:
-    ci_buildsys: "cmake"
+    ci_buildsys: "cmake-dist"
   script: *script
 
 build:i686-w64-mingw32-debug:
diff --git a/.travis.yml b/.travis.yml
index a609d774b..026cd06c1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,7 +32,7 @@ env:
   - ci_variant=debug
   - ci_variant=reduced
   - ci_variant=legacy
-  - ci_buildsys=cmake
+  - ci_buildsys=cmake-dist
   - ci_host=i686-w64-mingw32
   - ci_host=i686-w64-mingw32 ci_buildsys=cmake ci_variant=debug
   - ci_host=x86_64-w64-mingw32 ci_variant=debug
diff --git a/tools/ci-build.sh b/tools/ci-build.sh
index 8e22f84d5..a4e1e1828 100755
--- a/tools/ci-build.sh
+++ b/tools/ci-build.sh
@@ -101,6 +101,19 @@ maybe_fail_tests () {
 # own checks.
 NOCONFIGURE=1 ./autogen.sh
 
+case "$ci_buildsys" in
+    (cmake-dist)
+        # Do an Autotools `make dist`, then build *that* with CMake,
+        # to assert that our official release tarballs will be enough
+        # to build with CMake.
+        mkdir ci-build-dist
+        ( cd ci-build-dist; ../configure )
+        make -C ci-build-dist dist
+        tar --xz -xvf ci-build-dist/dbus-1.*.tar.xz
+        cd dbus-1.*/
+        ;;
+esac
+
 srcdir="$(pwd)"
 mkdir ci-build-${ci_variant}-${ci_host}
 cd ci-build-${ci_variant}-${ci_host}
@@ -287,7 +300,7 @@ case "$ci_buildsys" in
         fi
         ;;
 
-    (cmake)
+    (cmake|cmake-dist)
         case "$ci_host" in
             (*-w64-mingw32)
                 set _ "$@"
-- 
2.47.3