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https://issues.apache.org/jira/browse/CAMEL-24837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adriano Machado reassigned CAMEL-24837:
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Assignee: Adriano Machado
> camel validate yaml: say in plain words what a YAML indentation error is,
> instead of the raw snakeyaml message
> --------------------------------------------------------------------------------------------------------------
>
> Key: CAMEL-24837
> URL: https://issues.apache.org/jira/browse/CAMEL-24837
> Project: Camel
> Issue Type: Improvement
> Components: camel-jbang, camel-yaml-dsl
> Reporter: Claus Ibsen
> Assignee: Adriano Machado
> Priority: Major
>
> When a YAML route file has a list item indented differently from the first
> item of the same list, {{camel validate yaml}} (and the camel-jbang-mcp
> validation tool) return the raw parser message:
> {code}
> : com.fasterxml.jackson.dataformat.yaml.snakeyaml.error.MarkedYAMLException:
> while parsing a block mapping
> in 'reader', line 28, column 27:
> when:
> ^
> expected <block end>, but found '-'
> in 'reader', line 53, column 27:
> - expression:
> ^
> at [Source: (StringReader); line: 53, column: 27]
> {code}
> Nobody who does not know snakeyaml can act on "expected <block end>, but
> found '-'". What happened is: the list under {{when:}} (line 28) starts at
> line 29 with an item indented to column 29, and line 53 has another {{-
> expression:}} at column 27, so the parser thinks the mapping ended and finds
> a stray list item.
> Suggested: catch {{MarkedYAMLException}} in the validator and translate the
> common cases, keeping the line numbers:
> * "expected <block end>, but found '-'": "Line 53: this list item is indented
> differently from the first item of the list that starts at line 29; every
> item of a list must start in the same column."
> * "found unknown escape character": "Line 3: a backslash inside double quotes
> is an escape; write the value in single quotes:
> 'file:orders?include=.*\.json'" (a model wrote {{include=.*\.json}} in double
> quotes in the same benchmark).
> * "mapping values are not allowed here": the usual "a colon in an unquoted
> value".
> Found in the round-2 local-model benchmark on the camel-jbang-examples
> ladder: the model got this message, validated the same unchanged content ten
> more times, and never recovered. A person with a nested choice gets the same
> message.
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