Allow defining complex expression like in interactive mode - #132

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• done

It appears that property expression

@Parameter(property = "expression")
private String expression;

is already resolved when it goes to EvaluateMojo.execute()

e.g. executing
-Dexpression='project_version=${project.version}'

causes that the value of injected parameter expression is already resolved:
project_version=3.5.2-SNAPSHOT

and overlapping it with ${} does not do any good 😢

It overlaps already resolved expression with '${}' and tries to handle expression ${project_version=3.5.2-SNAPSHOT}, which fails with message

null object or invalid expression

However, the workaround exists 😛
passing property through additional parameter does the job, e.g.
-Dexpression='project_version=$${ver_property}' -Dver_property='{project.version}'
outputs desired value:
project_version=3.5.2-SNAPSHOT

should we revert this change?

should we revert this change?

Please keep it; it ultimately serves its purpose: you can prepare properties like format (or any other) within a single goal. This eliminates the need to use standard input, which is not always possible, e.g., during release