[tracker/sam/functional-tests] ci: Avoid dumping screenfuls of CI_ variables for each failed test

[Sam Thursfield <sthursfield src gnome org>]

commit 33ac3bbea9513a69a666b93ecdd857c3f2f3784a
Author: Sam Thursfield <sam afuera me uk>
Date:   Sun Jul 15 18:59:09 2018 +0200

    ci: Avoid dumping screenfuls of CI_ variables for each failed test

 .gitlab-ci.yml | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 01c0d1351..40fa171e6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -75,4 +75,10 @@ test-meson-fedora27:
     - su tracker -c 'mkdir build'
     - su tracker -c 'cd build; meson ..'
     - su tracker -c 'cd build; ninja'
-    - su tracker -c 'cd build; LANG=en_US.UTF8 dbus-launch meson test --print-errorlogs'
+    - |
+      # Remove the many "CI_" variables from the environment. Meson dumps the
+      # whole environment for every failed test, and that gives a whole
+      # screenful of junk each time unless we strip these.
+      unset $(env|grep -o '^CI_[^=]*')
+
+      su tracker -c 'cd build; LANG=en_US.UTF8 dbus-launch meson test --print-errorlogs'