Ability to export a given list of keys values to a file

[oleiade]

I personaly use trousseau most of the time as a convient way to spread my web services credentials over the devices I use. And it would be really useful to be able to do something like this for example:

$ trousseau extract aws_access_key_id aws_secret_access_key > ~/.aws/mykeys.rc
$ cat ~/aws/mykeys.rc
aws_access_key_id=abc
aws_secret_access_key=123

[fdv]

I'd rather see:

$ trousseau extract aws_access_key_id aws_secret_access_key
$ ls
aws_access_key_id
aws_secret_access_key

More convenient to use IMHO

[oleiade]

I don't know yet what I think about a new command like extract. Both sounds like a great idea and a "might be overkill" to me. What do you think?

What would you think of extending the export command as following:

$ trousseau export --key aws_access_key_id ./aws_access_key

[oleiade]

What about

$ trousseau extract aws_access_key aws_secret_access_key --output-file aws_credentials

Would even permit something like this

$ trousseau extract aws_access_key_id aws_secret_access_key \
                                --output aws_credentials.rc
                                --prefix 'export '
                                --separator '='
                                --key-transformation='uppercase'

Would end up creating a file looking like this

export AWS_ACCESS_KEY_ID=jniquen983niunknl
export AWS_SECRET_ACCESS_KEY=iuj39813nidj1lklkdnhb1iwudh9182nd1iu2ndkj12n

[oleiade]

Extract feels a bit too intrusive to me after all.
If users want to do such extraction and transformations, manipulating the trousseau export command stdout would do it better.

Let's stick to a simple

$ trousseau get 'oleiade.ssh.id_rsa' --file ~/.ssh/id_rsa

What do you think @fdv