add pr-check script

taken from: https://github.com/usegalaxy-eu/usegalaxy-eu-tools/blob/1cd22e99d7fa68b9d98856fe7ede4aa1127dab07/scripts/pr-check.py

Author: martenson

scripts/pr-check.py

@@ -0,0 +1,22 @@
+import sys
+import yaml
+
+from bioblend import toolshed 
+
+ts = toolshed.ToolShedInstance(url='https://toolshed.g2.bx.psu.edu')
+fn = sys.argv[1]
+
+# never mind about fancy yaml linting, let's just make sure the files are openable
+sys.stdout.write('Checking modified yaml file {}...\n'.format(fn))
+with open(fn) as f: 
+    yml = [n['name'] for n in yaml.safe_load(f)['tools']]
+
+with open('{}.lock'.format(fn)) as f:
+    yml_lock = [n['name'] for n in yaml.safe_load(f)['tools']]
+
+new_tools = [n for n in yml if n not in yml_lock]
+
+for tool in new_tools:  # check all new tools are in the tool shed
+    sys.stdout.write('Checking new tool {} is in the toolshed...\n'.format(tool))
+    search_hits = [hit['repository']['name'] for hit in ts.repositories.search_repositories(tool,page_size=600)['hits']]
+    assert tool in search_hits, '{} not in toolshed.'.format(tool)