How to remove whitespace around the = when converting from yaml to props and change the . to any desired character?

[saurin-tech]

I'm trying to convert a yaml file to properties file. Everything seems to work fine but I would like to make two modifications to the properties file.

1. I would like to remove the white spaces around the "=" sign.
   For example:
   I would like to have x.y = value turned into x.y=value

2. Is there away to change the "." into any desired characters.
   For example:
   x.y = value be turned into x_y=value

Thank you!

[andry81]

2. Is there away to change the "." into any desired characters.
For example:
x.y = value be turned into x_y=value

Just curious. Why not to just change it before yq call?

[saurin-tech]

Because it is in the yaml format and I'm using yq to convert to properties format.

x: y: value

[mikefarah]

The properties encoder I'm using automatically puts the space around the equals sign - and there is no way to control that. According to the properties spec however, this whitespace is ignored (https://docs.oracle.com/cd/E23095_01/Platform.93/ATGProgGuide/html/s0204propertiesfileformat01.html).

That said, you can use an expression to generate your own format, including the '_' instead of '.':

yq '..  | select(tag != "!!map" and tag != "!!seq") | 
  ( (path | join("_")) + "=" + .)
' input.yaml

Explanation:

• .. | select(tag != "!!map" and tag != "!!seq") find all the nodes that are scalars (not maps or arrays)
• ( (path | join("_")) + "=" + .) grab the path array of the node, join with "_", add "=" and the value "."