[gegl] gitlab-ci: conditional execution for babl-min-version

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 84ae94f22a5821de03401c59ffc38914a3746d8e
Author: Øyvind Kolås <pippin gimp org>
Date:   Mon Aug 12 18:19:28 2019 +0200

    gitlab-ci: conditional execution for babl-min-version
    
    Another permutation of trying to achieve use of master when we are
    depending on master rather than a specific tag, this is the case
    whenever the micro part of the version is odd.

 .gitlab-ci.yml | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index dc3c1e53e..a65b8921b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -38,7 +38,11 @@ babl-min-meson:
   extends: .babl-base
   script:
     - grep babl_required_version ../configure.ac | grep -o '[0-9]*\.[0-9]*\.[0-9]*' | sed 's/\./_/g' > 
.babl_min_version
-    - if [ x$(( $(cut .babl_min_version -f 3 -d _) % 2)) == x1 ] ; then git fetch --no-tags ; git checout 
master  ; else  ; git fetch --no-tags origin "refs/tags/BABL_`cat .babl_min_version`:refs/tags/MIN_VERSION" ; 
git checkout MIN_VERSION ; fi
+    - if [ x$(( $(cut .babl_min_version -f 3 -d _) % 2)) = x1 ] ; then touch .use_master ; fi
+    - test -e .use_master && git fetch
+    - test -e .use_master && git checkout master
+    - test -e .use_master || git fetch --no-tags origin "refs/tags/BABL_`cat 
.babl_min_version`:refs/tags/MIN_VERSION"
+    - test -e .use_master || git checkout MIN_VERSION
     - meson -Dprefix="$BABL_PREFIX" _build
     - ninja -C _build
     - ninja -C _build install