Return-Path: Delivered-To: apmail-buildr-commits-archive@www.apache.org Received: (qmail 83106 invoked from network); 19 Feb 2009 16:42:25 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 19 Feb 2009 16:42:25 -0000 Received: (qmail 48904 invoked by uid 500); 19 Feb 2009 16:42:25 -0000 Delivered-To: apmail-buildr-commits-archive@buildr.apache.org Received: (qmail 48884 invoked by uid 500); 19 Feb 2009 16:42:25 -0000 Mailing-List: contact commits-help@buildr.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@buildr.apache.org Delivered-To: mailing list commits@buildr.apache.org Received: (qmail 48866 invoked by uid 500); 19 Feb 2009 16:42:25 -0000 Delivered-To: apmail-incubator-buildr-commits@incubator.apache.org Received: (qmail 48860 invoked by uid 99); 19 Feb 2009 16:42:25 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 19 Feb 2009 08:42:25 -0800 X-ASF-Spam-Status: No, hits=-2000.0 required=10.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.140] (HELO brutus.apache.org) (140.211.11.140) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 19 Feb 2009 16:42:22 +0000 Received: from brutus (localhost [127.0.0.1]) by brutus.apache.org (Postfix) with ESMTP id 13084234C4AD for ; Thu, 19 Feb 2009 08:42:02 -0800 (PST) Message-ID: <2034629638.1235061722076.JavaMail.jira@brutus> Date: Thu, 19 Feb 2009 08:42:02 -0800 (PST) From: "Daniel Spiewak (JIRA)" To: buildr-commits@incubator.apache.org Subject: [jira] Commented: (BUILDR-229) Improve Scala Source Change Detection In-Reply-To: <108351160.1229624144221.JavaMail.jira@brutus> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org [ https://issues.apache.org/jira/browse/BUILDR-229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12675033#action_12675033 ] Daniel Spiewak commented on BUILDR-229: --------------------------------------- David MacIver has added some experimental support for this into the mainline Scala compiler. Thus, Buildr should get this for free once Scala 2.8.0 is released. Closing issue. > Improve Scala Source Change Detection > ------------------------------------- > > Key: BUILDR-229 > URL: https://issues.apache.org/jira/browse/BUILDR-229 > Project: Buildr > Issue Type: New Feature > Components: Compilers > Affects Versions: 1.4 > Reporter: Daniel Spiewak > Priority: Minor > > To my knowledge, Buildr currently bases its decision on which Scala files to compile based on simple file change heuristics (modified timestamp). Because Scala produces such a massive number of .class files, this can sometimes lead to longer-than-necessary compilation times. SBT (simple-build-tool) contains a rather innovative feature which actually bundles a Scala compiler plugin to optimize these recompilation heuristics. Specifically: http://code.google.com/p/simple-build-tool/source/browse/trunk/src/main/scala/sbt/Analyzer.scala > I'm not entirely clear yet on how it works, but it seems like it would do much to improve Buildr's rather-lengthy Scala build times. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.