Ferenc Gerlits created MINIFICPP-2440:
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Summary: Install all Python dependencies at once
Key: MINIFICPP-2440
URL: https://issues.apache.org/jira/browse/MINIFICPP-2440
Project: Apache NiFi MiNiFi C++
Issue Type: Improvement
Reporter: Ferenc Gerlits
When installing dependencies for Python processors, we can get into trouble if,
for example, processor A depends on pyfoo>=1.0.0 but processor B depends on
pyfoo<2.0.0. If the latest version of pyfoo is 2.0.1, and we load processor A
first, it will install pyfoo=2.0.1, which will cause an error when we try to
load processor B.
Pip is quite smart in resolving such conflicts, but it can only do so if we
give it all the requirements at once. So we should collect the dependency
requirements from all requirements.txt files and all
ProcessorDetails.dependencies fields in all processors, and call pip install
with this full list once, instead of calling it multiple times.
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