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Introduce docs for arrays on env vars (#706)

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* Introduce array support from java arguments
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Ignasi Marimon-Clos 2020-10-01 16:15:32 +02:00 committed by GitHub
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@ -684,6 +684,20 @@ With this option enabled only environment variables starting with
i.e. The environment variable `CONFIG_FORCE_a_b__c___d` set the i.e. The environment variable `CONFIG_FORCE_a_b__c___d` set the
configuration key `a.b-c_d` configuration key `a.b-c_d`
### Set array values from env variables
Setting the value of array items from environment variables requires
specifing the index in the array for the value. So, while in HOCON
you can set multiple values into an array or append to an array:
## HOCON
items = ["a", "b"]
items += "c"
using java arguments you specify the exact position:
-Ditems.0="a" -Ditems.1="b"
### Concatenation ### Concatenation
Values _on the same line_ are concatenated (for strings and Values _on the same line_ are concatenated (for strings and