Merge branch 'rf/retry' into 'master'

CI: pip install from git seems to fail sporadically - retry a few times before giving up

See merge request fsl/fsl-ci-rules!39

fsl_ci/__init__.py

@@ -21,7 +21,7 @@ import subprocess as sp
 import yaml
 
 
-__version__ = '0.6.14'
+__version__ = '0.6.15'
 """Current version of the fsl-ci-rules."""
 
 

rules/fsl-ci-job-template.yml

@@ -77,7 +77,13 @@
     - if [ "$CI_PROJECT_PATH" == "fsl/fsl-ci-rules" ]; then
         python -m pip install .;
       else
-        python -m pip install --no-cache git+${CI_RULES_REPOSITORY};
+        for ((i=1; i<6; i++)); do
+          echo "Installing CI rules from git (attempt $i / 5)...";
+          (python -m pip install --no-cache git+${CI_RULES_REPOSITORY} && touch success) || true;
+          if [ -f success ]; then break; fi;
+          sleep 2;
+        done;
+        if [ ! -f success ]; then exit 1; fi;
       fi
 
   # Post-job - remove the custom config directory