Well I am currently in the process of streamlining the build system, to make everything work and manage we create a temporary (node12-alpine based) docker that builds a project made with create-react-app.
The docker has as entrypoint: ENTRYPOINT npm ci --only=production && npm run build
This works, except an error is returned:
> fsevents@1.2.11 install /javascript/node_modules/fsevents
> node-gyp rebuild
gyp ERR! find Python
gyp ERR! find Python Python is not set from command line or npm configuration
gyp ERR! find Python Python is not set from environment variable PYTHON
gyp ERR! find Python checking if "python" can be used
gyp ERR! find Python - "python" is not in PATH or produced an error
gyp ERR! find Python checking if "python2" can be used
gyp ERR! find Python - "python2" is not in PATH or produced an error
gyp ERR! find Python checking if "python3" can be used
gyp ERR! find Python - "python3" is not in PATH or produced an error
gyp ERR! find Python
gyp ERR! find Python **********************************************************
gyp ERR! find Python You need to install the latest version of Python.
gyp ERR! find Python Node-gyp should be able to find and use Python. If not,
gyp ERR! find Python you can try one of the following options:
gyp ERR! find Python - Use the switch --python="/path/to/pythonexecutable"
gyp ERR! find Python (accepted by both node-gyp and npm)
gyp ERR! find Python - Set the environment variable PYTHON
gyp ERR! find Python - Set the npm configuration variable python:
gyp ERR! find Python npm config set python "/path/to/pythonexecutable"
gyp ERR! find Python For more information consult the documentation at:
gyp ERR! find Python https://github.com/nodejs/node-gyp#installation
gyp ERR! find Python **********************************************************
gyp ERR! find Python
gyp ERR! configure error
gyp ERR! stack Error: Could not find any Python installation to use
gyp ERR! stack at PythonFinder.fail (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/find-python.js:307:47)
gyp ERR! stack at PythonFinder.runChecks (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/find-python.js:136:21)
gyp ERR! stack at PythonFinder.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/find-python.js:179:16)
gyp ERR! stack at PythonFinder.execFileCallback (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/find-python.js:271:16)
gyp ERR! stack at exithandler (child_process.js:310:5)
gyp ERR! stack at ChildProcess.errorhandler (child_process.js:322:5)
gyp ERR! stack at ChildProcess.emit (events.js:321:20)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:273:12)
gyp ERR! stack at onErrorNT (internal/child_process.js:469:16)
gyp ERR! stack at processTicksAndRejections (internal/process/task_queues.js:84:21)
gyp ERR! System Linux 4.15.0-76-generic
gyp ERR! command "/usr/local/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /javascript/node_modules/fsevents
gyp ERR! node -v v12.16.0
gyp ERR! node-gyp -v v5.0.5
gyp ERR! not ok
Now I understand why python fails - there's no python installed on alpine linux by default. However why would I need this to run? - The project seems to work fine without it?
What purpose does the node-gyp rebuild/fsevents serve? Should I actually fix this?
Checking for use of fsevents shows:
├─┬ @babel/cli@7.8.3
│ └─┬ chokidar@2.1.8
│ └── UNMET OPTIONAL DEPENDENCY fsevents@1.2.11
└─┬ react-scripts@3.3.0
├─┬ babel-jest@24.9.0
│ └─┬ @jest/transform@24.9.0
│ └─┬ jest-haste-map@24.9.0
│ └── UNMET OPTIONAL DEPENDENCY fsevents@1.2.11
└── UNMET OPTIONAL DEPENDENCY fsevents@2.1.2
