Use ENV Vars in settings.xml about maven-with-proxy HOT 4 OPEN

${env.PROXY_HOST} tells maven to lookup in the Environment for this variable to substitute its value. You don't need to do any replacements yourself. Just try it out and let maven print all the vars it is aware of.

Run a maven build with: run -e PROXY_HOST=127.0.0.1 xxx mvn clean compile --debug

This will display environment information on your console that maven is aware of.

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Thanks for the hint. However, how can I ditch replace_by_env.sh? I still need to replace placeholder (e.g. $PROXY_HOST) by the values provided as env-vars and the remaining placeholders must be removed. So all I can do is to adapt replace_by_env.sh to put maven-specific placeholders instead of actual values of env-vars.

from maven-with-proxy.

${env.PROXY_HOST} tells maven to lookup in the Environment for this variable to substitute its value. You don't need to do any replacements yourself. Just try it out and let maven print all the vars it is aware of.

Run a maven build with: run -e PROXY_HOST=127.0.0.1 xxx mvn clean compile --debug

This will display environment information on your console that maven is aware of.

I'm not sure this will work. As per this answer variable interpolation in settings.xml is limited to the <profiles> element.

I just cannot find a way to do environment variable interpolation inside the proxies element of settings.xml

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It definitely does NOT work. You can neither use system properties nor environment variables in the <proxies> section. At least not up to and including Maven 3.9.2 - I have not tried the Maven 4.x alpha release(s).

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