[gtk-doc/wip/smcv/dist-meson-build] CI: Check that Meson tests can pass from an Autotools dist tarball

[Simon McVittie <smcv src gnome org>]

commit 675f9605014c4a3993207e7e3bf9abbc31c33816
Author: Simon McVittie <smcv debian org>
Date:   Fri Aug 21 15:54:10 2020 +0100

    CI: Check that Meson tests can pass from an Autotools dist tarball
    
    This allows the Autotools dist tarball to continue to be used as the
    official release artifact, while still allowing distributors to try
    Meson builds.
    
    Tests: #109
    Signed-off-by: Simon McVittie <smcv debian org>

 .gitlab-ci.yml | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 82ff02e..7532159 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -12,8 +12,12 @@ autotools-build:
   script:
     - ./autogen.sh --prefix=/usr
     - make
+    - make dist
   except:
     - tags
+  artifacts:
+    paths:
+      - gtk-doc-*.tar.*
 
 autotools-test:
   stage: test
@@ -33,6 +37,7 @@ autotools-test:
 meson-build:
   stage: build
   script:
+    - find . -name .git -prune -o -print | LC_ALL=C sort -u | git-filelist.txt
     - meson --prefix /usr _build .
     - ninja -C _build
     - meson test -C _build
@@ -42,6 +47,25 @@ meson-build:
     when: always
     paths:
       - _build/meson-logs/*
+      - git-filelist.txt
+
+meson-from-tarball:
+  stage: test
+  dependencies:
+    - autotools-build
+  variables:
+    GIT_STRATEGY: none
+  script:
+    - tar -xvf gtk-doc-*.tar.*
+    - ( cd gtk-doc-*/; find . -name .git -prune -o -print | LC_ALL=C sort -u | tar-filelist.txt )
+    - ( cd gtk-doc-*/; meson --prefix /usr ../_build . )
+    - ninja -C _build
+    - meson test -C _build
+  artifacts:
+    when: on_failure
+    paths:
+      - _build/meson-logs/*.log
+      - tar-filelist.txt
 
 # common