build against different ckan releleases

.travis.yml

@@ -1,7 +1,17 @@
 language: python
 python:
     - "2.7"
-env: PGVERSION=9.1
+env:
+    - CKANVERSION=master
+    - CKANVERSION=2.2
+    - CKANVERSION=2.3
+    - CKANVERSION=2.4
+    - CKANVERSION=2.5
+    - CKANVERSION=2.6
+    - CKANVERSION=2.7
+services:
+    - redis-server
+    - postgresql
 install:
     - bash bin/travis-build.bash
     - pip install coveralls

bin/travis-build.bash

@@ -5,17 +5,21 @@ echo "This is travis-build.bash..."
 
 echo "Installing the packages that CKAN requires..."
 sudo apt-get update -qq
-sudo apt-get install postgresql-$PGVERSION solr-jetty libcommons-fileupload-java:amd64=1.2.2-1
+sudo apt-get install solr-jetty libcommons-fileupload-java
 
 echo "Installing CKAN and its Python dependencies..."
 git clone https://github.com/ckan/ckan
 cd ckan
 #export latest_ckan_release_branch=`git branch --all | grep remotes/origin/release-v | sort -r | sed 's/remotes\/origin\///g' | head -n 1`
 #export ckan_branch=release-v2.2-dgu
-export ckan_branch=master
-echo "CKAN branch: $ckan_branch"
-git checkout $ckan_branch
-echo "CKAN commit: "`git rev-parse HEAD`
+if [ $CKANVERSION == 'master' ]
+then
+    echo "CKAN version: master"
+else
+    CKAN_TAG=$(git tag | grep ^ckan-$CKANVERSION | sort --version-sort | tail -n 1)
+    git checkout $CKAN_TAG
+    echo "CKAN version: ${CKAN_TAG#ckan-}"
+fi
 python setup.py develop
 pip install -r requirements.txt --allow-all-external
 pip install -r dev-requirements.txt --allow-all-external