现在需要从 XStream 项目的 Subversion 仓库中签出 XStream 源树。为了保持一致，请把所有源树签出为 /home/cruise/src 的子目录，并把 XStream 源树放在 src/xstream 中，像 config.xml 文件所指定的那样：

[cruise@fcvm pkg]$ cd
[cruise@fcvm ~]$ mkdir src
[cruise@fcvm ~]$ cd src
[cruise@fcvm src]$ svn co https://svn.codehaus.org/
xstream/trunk/xstream
A    xstream/LICENSE.txt
A    xstream/continuous-integration.xml
[...]
A    xstream/build.xml
 U   xstream
Checked out revision 614.
[cruise@fcvm src]$


然后，设置强制构建子目录：

[cruise@fcvm src]$ cd ..
[cruise@fcvm ~]$ mkdir force-build
[cruise@fcvm ~]$ touch force-build/xstream
[cruise@fcvm ~]$


后这一步是必需的，因为如果 config.xml 文件的 <filesystem> 元素中指定的文件不存在，CruiseControl 会拒绝启动。

现在构建工作可能没有正常工作，也有可能遗漏了一些依赖项。所以这个时候，应当做一些手动检查，确保能够成功构建 XStream 源树：
构建 XStream 有问题？
有可能发现 XStream 构建失败，报告 org.w3c.dom.TypeInfo 的 NoClassDefFoundError 错误。实际上，构建几乎成功了，但是 XStream 的 Ant 构建脚本用 <junitreport> 任务生成 JUnit 测试结果的 HTML 报告。这个工作使用 XSLT 转换，所以触发了前面我在 初始配置 一节中提到过的 xerces-j2 包中的 bug。

[cruise@fcvm ~]$ cd src/xstream
[cruise@fcvm xstream]$ ant library
Buildfile: build.xml
compile:
    [mkdir] Created dir: /home/cruise/src/xstream/build/java
     [echo] Java version used for compile: 1.4.2_08
    [javac] Compiling 150 source files to /home/cruise/src/xstream/bui
ld/java
[...]
library:
BUILD SUCCESSFUL
Total time: 1 minute 44 seconds
[cruise@fcvm xstream]$


而且，在添加新项目时，需要找到用来构建源和清理其中制品的目标的名称。必须把这个信息放在 config.xml 文件中。

现在应当做好准备，可以让 CruiseControl 自动执行这个构建了。只要启动 CruiseControl，然后坐下来等待可以了：

[cruise@fcvm xstream]$ cd
[cruise@fcvm ~]$ java -jar
pkg/cruisecontrol-2.2.1/main/dist/cruisecontrol.jar
[cc]Aug-24 20:09:31 Main          - CruiseControl Version 2.2.1
[cc]Aug-24 20:09:32 trolController- projectName = [xstream]
[cc]Aug-24 20:09:32 trolController- No previously serialized project f
ound: /home/cruise/xstream
[cc]Aug-24 20:09:32 Project       - Project xstream:  reading settings
 from config file [/home/cruise/config.xml]
[cc]Aug-24 20:09:32 BuildQueue    - BuildQueue started
[cc]Aug-24 20:09:32 Project       - Project xstream starting
[cc]Aug-24 20:09:32 Project       - Project xstream:  idle
[cc]Aug-24 20:09:32 Project       - Project xstream started
[cc]Aug-24 20:09:32 Project       - Project xstream:  next build in 1
hours
[cc]Aug-24 20:09:32 Project       - Project xstream:  waiting for next
 time to build
[cc]Aug-24 21:09:33 Project       - Project xstream:  in build queue
[cc]Aug-24 21:09:33 BuildQueue    - now adding to the thread queue: xs
tream
[cc]Aug-24 21:09:33 Project       - Project xstream:  reading settings
 from config file [/home/cruise/config.xml]
[cc]Aug-24 21:09:33 Project       - Project xstream:  bootstrapping
[cc]Aug-24 21:09:33 Project       - Project xstream:  checking for mod
ifications
[cc]Aug-24 21:09:59 Project       - Project xstream:  No modifications
 found， build not necessary.
[cc]Aug-24 21:09:59 Project       - Project xstream:  Building anyway，
 since build was explicitly forced.
[cc]Aug-24 21:09:59 Project       - Project xstream:  now building
Buildfile: build.xml
[cc]Aug-24 21:11:29 Project       - Project xstream:  merging accumula
ted log files
[cc]Aug-24 21:11:30 Project       - Project xstream:  build successful
[cc]Aug-24 21:11:30 Project       - Project xstream:  publishing build
 results
[cc]Aug-24 21:11:30 Project       - Project xstream:  idle
[cc]Aug-24 21:11:30 Project       - Project xstream:  next build in 1
hours
[cc]Aug-24 21:11:30 Project       - Project xstream:  waiting for next
 time to build
[stop CruiseControl using Ctrl-C]
[cruise@fcvm ~]$