Add test.Required function #392
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| $ gomplate -d config=config.yaml -i '{{ (ds "config").empty | required "The `config` datasource must have a value defined for `empty`" }}' | ||
| template: <arg>:1:25: executing "<arg>" at <required "The `confi...>: error calling required: The `config` datasource must have a value defined for `empty` | ||
| $ gomplate -d config=config.yaml -i '{{ (ds "config").bogus | required "The `config` datasource must have a value defined for `bogus`" }}' | ||
| template: <arg>:1:7: executing "<arg>" at <"config">: map has no entry for key "bogus" |
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Is there a way we could do something like:
{{ (ds "config") | get "bogus" | required "The `config` datasource must have a value defined for `bogus`"
where get works like getenv and does not error?
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ah, that might work. There is the index built-in, but it doesn't pipeline so well:
$ bin/gomplate -i '{{ $j := (json `{"foo":"bar"}`)}}{{ index $j "baz" | required "nope!" }}'
template: <arg>:1:53: executing "<arg>" at <required "nope!">: error calling required: nope!if only index took arguments the other way around, it'd be a simple case of {{ $j | index "baz" | required "nope!" }}.
I could write an alternate for index that takes arguments in the opposite order for easier pipelining, but it may not be that necessary...
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Signed-off-by: Dave Henderson <dhenderson@gmail.com>
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This was referenced Sep 8, 2018
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Fixes #310
Signed-off-by: Dave Henderson dhenderson@gmail.com