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From "Eric Milles (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (GROOVY-8295) Groovyc ant task can overflow Windows command line if classpath is large
Date Mon, 04 Dec 2017 19:43:00 GMT

    [ https://issues.apache.org/jira/browse/GROOVY-8295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16277351#comment-16277351
] 

Eric Milles edited comment on GROOVY-8295 at 12/4/17 7:42 PM:
--------------------------------------------------------------

Here is a possible new version of {{getClasspathRelative}}:
{code}
    private String getClasspathRelative(Path classpath) {
        String baseDir = getProject().getBaseDir().getAbsolutePath();
        String pattern = "(\\A|" + File.pathSeparator + ")" + Pattern.quote(baseDir) + "\\b";
        return classpath.toString().replaceAll(pattern, "$1.");
}
{code}


was (Author: emilles):
Here is a possible new version of {{getClasspathRelative}}:
{code}
    private String getClasspathRelative(Path classpath) {
        String baseDir = getProject().getBaseDir().getAbsolutePath();
        String classpathString = classpath.toString();
        // replace each occurrence of baseDir after a pathSeparator with "."
        classpathString = classpathString.replaceAll("(\\A|" + File.pathSeparator + ")" +
Pattern.quote(baseDir) + "\\b", "$1.");
        return classpathString;
}
{code}

> Groovyc ant task can overflow Windows command line if classpath is large
> ------------------------------------------------------------------------
>
>                 Key: GROOVY-8295
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8295
>             Project: Groovy
>          Issue Type: Bug
>          Components: Ant integration
>         Environment: Windows
>            Reporter: Eric Milles
>            Assignee: Paul King
>             Fix For: 2.4.13
>
>         Attachments: Groovyc.patch
>
>
> The groovyc ant adapter tries to account for the 32K command line length limit on windows
in its addSourceFiles method.  However, if the command line gets long for other reasons --
we include a number of libraries in our compiled projects -- the command line can still be
overflown.
> This results in:
> {code}
> CompileAntScript.xml:129: Error running forked groovyc.
> 	at org.codehaus.groovy.ant.Groovyc.runForked(Groovyc.java:1121)
> 	at org.codehaus.groovy.ant.Groovyc.compile(Groovyc.java:1214)
> 	at org.codehaus.groovy.ant.Groovyc.execute(Groovyc.java:831)
> Caused by: java.io.IOException: Cannot run program "C:\Program Files\Java\jdk1.8.0_60\jre\bin\java":
CreateProcess error=206, The filename or extension is too long
> 	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
> 	at java.lang.Runtime.exec(Runtime.java:620)
> 	at org.apache.tools.ant.taskdefs.Execute$Java13CommandLauncher.exec(Execute.java:862)
> 	at org.apache.tools.ant.taskdefs.Execute.launch(Execute.java:481)
> 	at org.apache.tools.ant.taskdefs.Execute.execute(Execute.java:495)
> 	at org.codehaus.groovy.ant.Groovyc.runForked(Groovyc.java:1119)
> 	... 31 more
> Caused by: java.io.IOException: CreateProcess error=206, The filename or extension is
too long
> 	at java.lang.ProcessImpl.create(Native Method)
> 	at java.lang.ProcessImpl.<init>(ProcessImpl.java:386)
> 	at java.lang.ProcessImpl.start(ProcessImpl.java:137)
> 	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
> 	... 36 more
> {code}
> Would it be possible to add command line length checking to {{runForked}} instead of
{{addSourceFiles}} and use a command file for groovyc to prevent command line overflow?  Without
this, we are having to use a lot of verbose workarounds in Ant.
> https://github.com/apache/groovy/blob/master/subprojects/groovy-ant/src/main/java/org/codehaus/groovy/ant/Groovyc.java



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