parse_version() is called twice (instead of once) #90
Description
When detecting soft entries it seems that their version-detection code runs twice with the same input parameters (and thus with the same results). Here is the output of one full detection run :
$ ck detect soft --tags=lib,pyquil
Searching for Rigetti pyQuil library (pyquil/__init__.py) to automatically register in the CK - it may take some time, pl Searching for Rigetti pyQuil library (pyquil/__init__.py) to automatically register in the CK - it may take some time, pl Searching for Rigetti pyQuil library (pyquil/__init__.py) to automatically register in the CK - it may take some time, pl Searching for Rigetti pyQuil library (pyquil/__init__.py) to automatically register in the CK - it may take some time, please wait ...
* Searching in /usr ...
* Searching in /opt ...
* Searching in /usr/local/Cellar ...
* Searching in /Users/lg4 ...
* Searching in /Users/lg4/Library/Python ...
Search completed in 57.9 secs. Found 1 target files (may be pruned) ...
Detecting and sorting versions (ignore some work output) ...
Prepared CMD to detect version: PYTHONPATH=/Users/lg4/Library/Python/3.6/lib/python/site-packages python3 -c 'import pyquil ; print(pyquil.__version__)' >/var/folders/26/xh863tq54n59h5rnrk3c7mtw0000gn/T/B7mJmI ...
Executing "bash -c "chmod 755 /var/folders/26/xh863tq54n59h5rnrk3c7mtw0000gn/T/tmp-GTVbSa.sh; . /var/folders/26/xh863tq54n59h5rnrk3c7mtw0000gn/T/tmp-GTVbSa.sh"" ...
Version detected: 1.9.0
* /Users/lg4/Library/Python/3.6/lib/python/site-packages/pyquil/__init__.py (Version 1.9.0)
Registering in the CK (/Users/lg4/Library/Python/3.6/lib/python/site-packages/pyquil/__init__.py) ...
Software entry found: lib.pyquil (7a688556e84d7c47)
Attempting to detect version automatically (if supported) ...
Prepared CMD to detect version: PYTHONPATH=/Users/lg4/Library/Python/3.6/lib/python/site-packages python3 -c 'import pyquil ; print(pyquil.__version__)' >/var/folders/26/xh863tq54n59h5rnrk3c7mtw0000gn/T/07h7jr ...
Executing "bash -c "chmod 755 /var/folders/26/xh863tq54n59h5rnrk3c7mtw0000gn/T/tmp-oyMCqQ.sh; . /var/folders/26/xh863tq54n59h5rnrk3c7mtw0000gn/T/tmp-oyMCqQ.sh"" ...
Version detected: 1.9.0
Detected version: 1.9.0
Searching if environment already exists using:
* Tags: lib,quantum,rigetti,pyquil,host-os-macos-64,target-os-macos-64,64bits,v1,v1.9,v1.9.0
Environment with above tags is not yet registered in CK ...
Environment entry added (58b160288a164bc2)!
Successfully registered with UID: 58b160288a164bc2