Allow accepting env vars for config #128
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added 3 commits
December 14, 2018 14:32
This function reads the map of config environments to Environment structs from the dbconfig.yml file. We want to allow these commands to also read from the shell environment, so for unambiguous names this is being renamed.
This is in the same vein of the previous commit where we want to be able to parse an Environment from the shell environment, so to make that switch easier, this function now returns the Environemnt and can be substituted for another function which reads from the environment.
We want to build the ability for this command to accept the Environment through the shell env. If the file is not present, we optimistically look for the Environment in said shell env. There are existing zero-value checks to make sure that a user doesn't accidentally end up with no values for anything if their file was empty. We do a separate stat to check for the file to keep the complexity of the fallback simpler. The envconfig package can be researched more here: https://github.com/kelseyhightower/envconfig
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@rubenv have you had a chance to take a look at this PR? Would like to get this merged to you upstream if possible, let me know if that will be the case please. |
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@rubenv I have added env configurability to the ignore-unknown setting as well. If you are interested in env configurability, it would be great if this PR could get merged first so that I can open a PR for the ignore-unknown addition. |
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Our company has a use case to provide the environment information through the shell environment instead of from a
dbconfig.ymlfile. We have augmented thesql-migratebinary's capability to check for adbconfig.ymlfile before trying to read it in, and if there is no file present, it will be optimistic and try to read from the shell environment. Failing to read from the environment if there is no file will work as it did before with the zero-value checking that happens in the last part ofGetEnvironment. If these changes are acceptable to introduce to the parent project would like to do so.Example usage showing that this:
dbconfig.ymlif presentdbconfig.ymlis not present