[jira] [Created] (CALCITE-2524) JavaCC updates SqlParserImpl*.java files, and it causes long compilations

["Vladimir Sitnikov (JIRA)" <ji...@apache.org>]

Vladimir Sitnikov created CALCITE-2524:
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             Summary: JavaCC updates SqlParserImpl*.java files, and it causes long compilations
                 Key: CALCITE-2524
                 URL: https://issues.apache.org/jira/browse/CALCITE-2524
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.17.0
            Reporter: Vladimir Sitnikov
            Assignee: Julian Hyde


{noformat}[DEBUG] CompilerReuseStrategy: reuseCreated
[DEBUG] useIncrementalCompilation enabled
[DEBUG] Stale source detected: /Users/vladimirsitnikov/Documents/code/calcite/core/target/generated-sources/javacc/org/apache/calcite/sql/parser/impl/SqlParserImplTokenManager.java
[DEBUG] Stale source detected: /Users/vladimirsitnikov/Documents/code/calcite/core/target/generated-sources/javacc/org/apache/calcite/sql/parser/impl/SqlParserImplConstants.java
[DEBUG] Stale source detected: /Users/vladimirsitnikov/Documents/code/calcite/core/target/generated-sources/javacc/org/apache/calcite/sql/parser/impl/SqlParserImpl.java
[INFO] Changes detected - recompiling the module!
{noformat}

It looks like we could treat that by teaching javacc-maven-plugin to check if destination files match the desired contents before overwriting them (~something like https://github.com/julianhyde/hydromatic-resource/pull/4).

The sad thing is https://github.com/mojohaus/javacc-maven-plugin seems to be unmaintained.

Are there any plans re JavaCC? (e.g. https://github.com/phax/ParserGeneratorCC)

I see two options:
1) Fork https://github.com/mojohaus/javacc-maven-plugin and publish the plugin with alternative coordinates. For instance, I can easily push to com.github.vlsi....

2) Switch to ParserGeneratorCC and file a PR there

3) File a PR to https://github.com/mojohaus/javacc-maven-plugin, however I suspect that repository is no longer maintained.






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